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Oct. 29, 1946.
G. F. WALES
2,410,372
METHOD OF AND APPARATUS FOR PUNCHINGl BY TRANSFER MEANS
Filed Dec. 18. 1944
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G. F. WALES
2,410,372
METHOD OF AND APPARATUS FOR PUNCHING BY TRANSFER MEANS
Filed Dec. 18, 1944
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METHOD OF AND APPARATUS FOR PUNCHING BY TRANSFER MEANS
Filed Dec. 18, 1944
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w 29, i946.y
G. F. WALES
2,410,372
METHOD OF’ AND APPARATUS FOR PUNCHING _BY TRANSFER MEANS
Filed Dec. 18, 1944
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6 Sheets-Sheet 5
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IN VEN TOR.
@tt 29, 1946.
Q_ F_ WALES
2,410,372
METHOD OF AND APPARATUS FOR PUNCHING BY TRANSFER MEANS
Filed Dec. 18, 1944
6 Sheets-Sheet 6
1N VEN TOR.
Patented Oct, 29, 1946
2,410,372
UNITED STATES PATE
OFFICE
2,410,372
METHOD 0F AND APPARATUS FOR PUNCH
ING BY TRANSFER MEANS
George F. Wales, Kenmore, N. Y. i
'
Application `December 18, 1944, Serial No. 568,637
34 Claims.
(Cl. 164-94)
This invention relates to a method and appa
elements, whence they would be gathered up and
ratus for punching holes in metal members such
saved for future use. If, however, a number of
as flat blanks, sheets, plates, bars and the like
work-pieces of a pattern Were required it has
although the same may be used in making holes
been the practice heretofore to gather up the
or openings in any other material to which the
punch-bits, place one in each aperture in a jig
method and elements may be adapted.
plate positioned above a work-piece and then
It more particularly relates to a method of
to push them completely through the work-piece
punching holes in such members by providing a
and die elements and rinto a receptacle, -whence
master punch guiding plate for use with the
they were gathered up and placed again in the
punch-bit method of punching as described in
my co-pending patent application Serial No. 10 jig plate apertures every time a work-piece was'
533,270.
to be punched. Although a number of patents
have issued along such lines, the devices and
My co-pending patent application No. 533,270,
method have never Ibecomepopular because the
“Method of and apparatus for punching by trans
fer means,” discloses a method of punching a
multiplicity of holes consisting in lodging a plu
rality of traveler punch-bits in a first work-piece,
then forcibly transferring said bits from one
work-piece to another whereby a, multiplicity of
holes are left in each work-piece from which said
diiliculty of handling the loose punch-bits has
defeated any other advantage which might have
accrued to their use.
My improvement resides in arresting the move
ment of the punch-bits after they have pene
trated a work-piece, in such manner that the bits
punch-bits travel. In that method the two work 20 remain tightly gripped by said work-piece. This
combination is then placed on the master punch
pieces are placed in contact with one another
guiding plate with the punch-bits entered in,`or
and the punch-bits transferred directly from the I
at least centered above, their respective master
ñrst piece into the second, then from the second
or jig plate apertures. Thus instead of having
to the third and so on. ~ As the work-pieces in
volved in that operatic-n are placed together, i. e. 25 to gather up a lot of loose punch-bits every time
a work-piece is to be punched, as has heretofore
one on top of the other with the lower resting
been necessary„I merely remove a work-piece
on the die elements of the apparatus, it is nec
essary to provide means for shifting the upper
'
_
in it from under the jig
plate, where it was positioned in order to re
piece so that the punch-bits, which are lodged
30
ceive the bits, and place it on top of the jig plate.
in it, will always be positioned definitely in op
Thus all of the punch-bits are positioned at one
erating relation to their companion die apertures.
time in their proper positions above their jig plate
The slight adjustment necessary is made by
apertures, ready for the next operation. As will
sleeves in the apparatus, above the work-pieces,
be learned from the drawings and specification
which when actuated by the ram of a press,
have apertures which engage the upwardly pro 35
jecting inwardly tapered anvil ends of the punch
bits and cause the entire upper work-piece, in
which they are lodged, to shift so that all of the
bits are brought into alinement with their die
40
apertures at the same time.
Before continuing with the description of my
apparatus and method, I wish to call attention
In the present method, the punch-bits are
transferred from one work-piece to another
to Patent No. 2,300,785 issued toHaydon and
through a master punch-bit guiding plate which
entitled “Gear stud assembly.” While there is
said invention and the
present improved method of punching, it will be
manifest from the following description that the
- some similarity between
is interposed between them. y
Both of these inventions are based upon the
principle of lodging a multiplicity of punch-bits
in a work-piece in such manner that it acts as
concepts and purposes of the two inventions are
a carrier of said bits until subsequently placed
in an apparatus which transfers them into an
entirely different and the claims in the present
case are drawn to bring out the distinction.
Haydon’s invention is one of assembly while
other work-piece.
'
If the requirement
the present invention is one of punching. It is
not the purpose of his invention to remove the
studs in ordei` to obtain open holes in the plate.
55
In his invention, Haydon provides a die element
having apertures located at the desired positions
2,410,372
.
'
3
upon which he places the member to which the
studs are to be assembled. Upon the member
he places a jig plate having apertures provided
with openings which are spaced in exactly the
same relation as the apertures in the die element.
' The openings in the jig plate and die element
are located in axial alinement with one another
by means of locating pins which interlock them
in their proper relative positions. Loose studs are
placed in the apertures of the jig plate in such
manner that when the anvil ci the press descends.
it drives them into the member, the studs acting
as punches t0 punch holes in the member in
which they are to remain permanently for use
as shafts or pin's upon which gears or the like
are to be mounted.
‘
As will be seen by the description of the pres
ent invention which follows, the improvement as
applied to Haydon’s device is that a multiplicity
4
The schul transfer ooms when the punch
bitsaremovedbypresnn'eappliedtotheiranvil
ends, from the top work-piece, through the guide
plate apertures and into the lower work-piece
wheretheirmovenmtisenestedbylimiting
the downward motlonof the pressure means.
Whencperntedinastampingpressorthe
like. the extent to which the punch-bits enter
or project through the lower work-piece is de
termined by
the setting o! the ram.
After the transfer is made. the upper work-piece
is free of pinch-Ilm although as long as it rests
ontopottheguidelinteaslllustratedinì’ig. 3,
theanvilendsotthehltsremainwithinthe
holes. The bilis are free in the holes, however, as
theanvilendsarereducedinslzeandafterthe
ram moves out o! the way the work-piece may be
removed by lifting it aime or together with the
guide plate. The lower work-piece in which the
are lodged is thm lifted from the die ele-_
o! studs previously lodged in another member 20 bits
ments
andplaeedontupofthemasterplate, a
would be placed on’the top of his jig plate with
new
work-piece
is placed on the die elements and
said studs entering into the apertures of the jig
the routine repented until the run or work-pieces
plate so that when the ramïdescended it would
desired has been
‘ torce the studs from the upper piece in which
they are lodged and through the holes in the iig 25 The principal object o! this invention is to pro
videamethodotplmchingasingleholeora
plate and into the member in which they vare to
multiplicity of holes inwoLrk-pieces.
be assembled.
Another object is to provide a method of punch
It will now be clear that in the previously men
ing a multiplicity o! holes in work-pieces by
tioned devices, where short punch-bits have been
lodging a plurality of punch-bits in a iirst work
used for punching holes as well as in the Haydon 30 piece and then
them from their lodging
invention, that in order to make preparations for
places, through apertures in a guide plate, and
each stroke oi an operation, loose punch-bits or
relodgingthem in another work-piece positioned
studs have had to be placed individually into jig
at the oppositesideotsaidplate and resting on
plate apertures formed to accommodate them.
die elements having apertures for cooperation
35
This, of course, is a. slow and expensive manner
with said bits.
of punching holes, as will be seen when the pres
A mrthcr object is to provide a method for ex
ent improvement is understood.
o ercising control over a plurality o! punch-bits, in
Punch-bits which are pressed through guide
the process of
holes in work-pieces, so
plate apertures, and lodged in a work-piece under
that
after
said
hib
have
been guided through
it, must be definitely vpositioned in the work-piece 40 apertures in a iig plate and
lodged by pressure
in accordance with the pattern of those aper
in a work-piece. said work-piece, with the bits
tures. Itis obvious then, if a work-piece is moved
lodged in it, may be moved from below to above
from underneath the guide plate and placed on
said jigplatewhîieservingasacarrieroisaid
the other side of it, that the punch-bits are
bits, at the same time retaining the bits in ex
bound to line up perfectly in the same apertures
through which they pass, each in its own aper
ture. every time a transfer is made.
It is with such control or the punch-bits that
the present invention is concerned and the meth
od and apparatus is simple in construction, eifec- tive in its purpose and economical in its use.
In making a transfer I place a new work-piece
in a predetermined position on top of the die
elements. This predetermined position is assured
for each counterpart by gauging means which
contact the edges or some other part of it. The
master guide plate may be organized in any man
’ ner that positions it aboveÍthe work-piece which
rests on the die elements so that its punch-bit
act spaced relationwith one another so that when
said work-piece is placed above said jig plate,
each punch-bit will he in a position to enter into
its respective aperture in said jig plate when the
operation to transfer said bits from said work
piece, through said .iig Plate apertures and into
another work-piece is performed.
Another object is to provide a method and
means for exercising control over a plurality of
punch-bits as they are transferred progressively
from one work-piece to another, which, method
consists in moving said bits from the exit ends
or their guiding apertures in an apparatus mem
ber, to the entering ends of the same apertures
said bits are lodged in a work-piece.
guide apertures are in operative alinement each 60 while
It is a further object to provide a method o!
with a companion die opening. A plurality of
transferring one or more punch-bits from a
punch-bits are positioned on the top side of the
work-'piece in which they are lodged, through
master plate and entered into their individual
companion guiding apertures in an apparatus
guide apertures by the simple expedient of plac
member, and into another vwork-piece situated
65
ing another work-piece, in which the bits are
on die elements at the exit ends of said aper
_ lodged, on top
of the guide-plate. At least some
tures.
'
of the punch-bits project from the under side of
Another object is to provide the method and
the work-piece in which they are lodged a sum
means for locating a plurality of punch-bits in
clent distance so that they extend into their
axial alinement with their respective apertures
70
guide holes when the work-piece is placed on the
in an apparatus member, which method consists
guide plate and thus locate themselves as well
in lodging the bits in each successive work-piece
as all other bits properly for operation. No other
so that one or more of them project from said
gauging means for the punch-bit carrying work
work-piece in such manner that when said work
piece is necessary unless stops for approximate
75 piece rests on said member, one or more bit ends
positioning are desired.
`
2,410,872
5
are axially conñned in said apertures preparatory
to being pressed therethrough and in being so
coniined thereby aline all other bits in axial aline
ment above their respective apertures.
Another object is to provide a method and
means for centering in axial alinement a multi
plicity of punch-bits, each in its aperture in a jig
plate, by lodging said bits in a work-piece so that
they project from same intosaid apertures when
said work-piece is placed adjacentto said plate. 10
A further object is to arrest the movement of
punch-bits after they have penetrated a work
piece in such manner that said bits remain' tightly
gripped by said work-piece with at least some of
them projecting beyond the face of said work
15
piece.
A further object is to provide locating means
so that the resultant holes will be in accurate
relation with the outside contour of the work
.transferred Vinto the lower work-piece thereby
leaving the upper‘piece with holes in it.
Fig. 4 is a front elevation of' the basic ele
ments required in this invention and include a
die plate having work locatingmeans, a master
punch-guide plate having means by which its
openings are positioned in axial alinement with
the die apertures, and punch-bits having reduced
anvil ends.
Q
Fig. 5 illustrates how the first piece of a pro
duction run is placed in the apparatus of Fig. 4
in preparation forV lodging the punch-bits in it.
Fig. 6 is the same as Fig. 5 but with the punch
bits lodged in the work-piece.
`
Fig. 7 is the same as Fig. 6 with the members
work-piece of Fig. 2.
Fig. 8 is a front elevation, partly in section,
piece.
e same apparatus but provides a mounting
Another object is to provide means for elevat 20 ì
for the die plate which provides a space for slugs
ing the master punch plate and to maintain it in
to drop into for easy removal.
vertical alinement so that the punch-bit guide
Fig. 9 is a perspective view of the apparatus
openings are in axial alinement with their coop
shown in Fig. 8 showing extension bars to assist
erating die member apertures.
in the manipulation of the parts.
v
Another object is to -provide a method of locat
Fig.
10
is
a
diagrammatical
operation
sequence
ing individual die elements in desired relation
to one another by fitting them into aA template Y explaining the use of the apparatus of Fig. 9.
Fig. 11 is a front elevation of my device illus
positioned at the working end portion of said ele
ments.
`
trating the preferred manner of mounting the
30 master punch-bit guide plate to the ram of a
Another object is
press.
where the master punch-bit guide plate recipro
Fig. 12 is a plan view taken on line |2-I2
cates with the ram and carries on its upper face
Fig. 11.y
the work-piece which has the punch-bits lodged
Fig. 13 is a fragmentary front elevation, partly
in it, while the second work-piece which is to
in section. of a‘method of mountinga plurality
receive the punch-bits rests on the stationary die
in such manner that when the ram descends it
presses the punch-bits out of the i'lrst work-piece,
through the guide apertures of the master plate,
and lodges them in the second work-piece where 40 the elements ñrmly in position.
Fig. 14 is a fragmentary front elevation, partly
Athey remain when the ram ascends, thus leav
in section,
‘
ing holes in the ñrst work-piece which is then
removed from above the master plate, as a fin
ished perforated work-piece, and replaced by the
second work-piece which has had the punch-bits
lodged in it..
Another object is to provide a method of trans
ferring punch mediums from a iirst work-piece
us. Qi
mounted to the lower shoe
view shows the punch >carrying member in posi
tion as it approaches the die element on the de
scending stroke of the ram before the punch-bit
through a master punch plate and into a second
work-piece by means of an apparatus in which 50 is transferred to the work-piece resting on the
die element. _l
the master plate and both work-pieces are carried
Fig. 15 is a fragmentary view of the same ap
by elements attached to the reciprocating ram of
the press.
paratus shown in Fig. 14 but in a partially closed
I
Another object is to provide a means whereby
the first work-piece of a run which has no >‘holes
in it, is used to support the punch-bits in the
apertures of the master plate prior to having said
punch-bits lodged in said work-piece.
These objects and the several novel features
of the invention are hereinafter fully described
and claimed and the preferred form of construc
tion by which these objects are attained is shown
in the accompanying drawings in which:
Fig. 1 is a top plan view of an elementary form
of apparatus showing a work-piece, having
punch-bits lodged in it, placed upon a master
plate as shown in Fig. 2.
Fig. 2' is a iront elevation of Fig. l, partially
in section, illustrating the basic principle of this
invention. The apparatus is shown with the
punch-bits lodged in the upper work-piece ready
to be transferred into the work-piece resting
between the two plates.
`
position with the punch-bit having been pressed
out of its lodged position in the upper work-piece
and with its Working end just contacting the top
face of the lower Work-piece. The alinement pin
shown attached to the die plate is in engage
ment with its cooperating aperture in the punch
plate to assure final alinement of the punch-bit
and die apertures in the plates, a multiplicity of
such pins being used. The pins as shown may
also be used as work-positioning guides for locat
ing the lower work-piece properly in relation to `
the apertures.
Fig. 16 is a fragmentary front elevation, partly
in section, of the apparatus shown in Figs` 14
position of the ram, with
the punch-bit driven into the lower work-piece
and partially into the die aperture, but still be
ing tightly seized by the work-piece. This view
illustrates how the anvil end of the punch-bit
is reduced to ~free it from the hole in the upper
work-piece.
~
Fig. 17 is a front elevation of an apparatus
Fig. 3 is the same as Fig. 2 but with the bits 75
similar to that shown in Fig. 11 except that the
2,410,872
7
8
it will be obvious from Fig. 3 that the upper work
piece III may be freely lifted from the upper
face of plate I3 as the punch-bits, all having
punch plate is provided with means for carrying
the work-piece in which the punch-bits are to
reduced anvil ends, no longer are seized by said
Fig. 18 is an
fragmentary vertical 5 upper
work-piece. Likewise plate I3 may be‘
section of the apparatus shown in Fig. 17 illus
lifted from its resting place on the lower work
tratlng how the elements appear when the recip
piece I4, which now has the punch-bits embedded
rocating ram is in its lowermost position in which
in it, because the reduced anvil ends of the punch
the punch-bits are transferred from the work
bits extend entirely through the openings in same.
piece above the punch plate into the work-piece
With upper work-piece I5 and guide plate I3
below it.
removed from the apparatus as it is illustrated
In the following description similar characters
in Fig. 3, it is a simple matter to remove lower
of reference indicate like parts in the several
work-piece I4, which now has the punch-bits
figures of the drawings.
lodged in it, from die plate I2. In order to clear
In Figures 1, 2 and 3. the numeral In repre
the slugs 29 and 39 from the enlarged cavities
sents the bed or bolster plate of a stamping press
3l and 32 formed in the under side of the die
having a ram II which reciprocates toward and
plate, it is necessary to slide the plate on the
from said bed. Numeral I2 represents a die ele
bolster of the press so that all of the openings
ment plate which is provided with die openings
are moved outwardly beyond the edge of the
I8 and I3 which represent a multiplicity of holes
bolster thereby causing the slugs to fall into a
located in said die plate according to a pattern 20 receptacle, or the plate may be elevated and the
oi holes which are to be punched in a work-piece
slugs brushed or blown from beneath it. Plate
Il which is placed on the upper face of said plate.
I2 after the slugs have been removed, is then
I3 represents a. punch-bit guide plate which is
placed in its original position, a new plain work
provided with a pattern of holes which is an
piece is placed upon it, the guide plate I3 is then
exact duplicate of the pattern formed in the 25 placed upon the new work-piece and the work
companion die plate and which are represented
piece which now has the punch-bits lodged in
by numerals 2| and 22. As illustrated in Figs. l
it is placed on the guide plate and the apparatus
and 2, die plate I2 is provided with a plurality oi
then appears as shown in Fig. 2.
t
alinement pins 39 which iit closely into the aper
It is obvious that any means may be used for
tures 29 of plate I3. As these pins and apertures 30 _locating the plain work-piece I4 as illustrated in
are in exact relation to the openings which form
Fig. 2, although I preferably show that the aline
the pattern of holes in plates I2 and I3 they
ment pins 39 are also used for gauging the work
serve the purpose of aligning said holes so that
piece as indicated by numerals 33. As illus
when work-piece Il is placed between said plates
trated in Fig. 2, it is obvious that it is unneces
35
the holes will be in axial alinement. Numerals
sary to have gauging means 33 project above
I9 and I1 represent punch-bits which are lodged
punch guide plate I3 as the punch-bits locate
in work-piece I5 as will be described later. It
themselves definitely in their respective openings
will he observed that punch-bit I6 is provided
when placed on said plate.
with a body 3l which is the full size of the hole
From the above description it will be seen
to be punched, and an anvil end 23, which is 40 that a multiplicity of punch-bits may be trans
reduced so as to be smaller in size than said
ferred from one work-piece to another by simply
body. Likewise, punch-bit I1 is provided with a
pressing them out of the first work-piece, through
body 2l of full diameter and an anvil end 23
guide openings in a master plate, into the second
of smaller size. These punch-bits are lodged in
and then repeating the 'operation
their respective openings 26 and 21 in work-piece 45 work-piece,
until
the
desired
number of work-pieces have
I8 so'that they are held tightly in the position
holes punched in them.
as illustrated in Fig. 2. Punch-bit I6 as illus
Figs. 4 to ’I inclusive are used to simplify the
trated in Fig. 2 extends beyond the lower face
bßlodged.
'
'
'
explanation and to show-how the start of a run
of work-piece I5 so that it is entered into the
aperture 2| of plate I3 as indicated by numeral
,50 is made.
opening. Likewise the working end 24 of punch
bit I1 extends into the opening` 22 of the guide
plate so that it alsolocates itself in its opening
in plate I3. With punch-bits IS and I1 gripped
l
In Fig. 4 die element vplate I2 is provided with
the combined alinement and gauge pins 39, 39a
and 39h and punch-bit guide plate I3 is pro
28 a sumcient distance to locate itself in the
5 izri’cìed with the companion openings 20, 20a and
5
.
Fig. 5 illustrates how work-piece I4 is placed
tightly in work-piece I5 and held in vertical re
upon
die plate I2 after which punch-bit guide
lation thereto, it is evident that any quantity of
plate I3 is lowered so that openings 20 engage
similar bits would also be positioned intheir par
guide pins 39, thereby positioning each punch
ticular openings in plate I3 because all such 60 bit guide aperture in axial relation with its com
punch-bits could be made to project into their
panion die opening. Punch-bits I6 and I1 are
guide openings if desired.
then placed in the openings of plate I3 ready
, As illustrated in Fig. 2, the apparatus is placed
to be driven by the ram of the press through the
upon the bed Il of the press and is shown ready
work-piece and lodged therein, as shown in Fig.
to have the punch-bits transferred by ram power 65 6, simultaneously removing from the work-piece
from upper work-piece I5 through the guide aper~
slugs 29 and 3B.
tures of plate I3 and into lower work-piece I4
After the ram II of the press has ascended
where they lodge themselves while at the same
out of the way, the elements are separated as
time removing slugs 29 and 39 as illustrated in
indicated by Fig. 7. the result of the operation
Fig. 3 which shows the apparatus at the comple
tion or lower-most position of the ram stroke.
In the type of press in which this apparatus is
operated, the ram is automatically elevated and
70 being that work-piece I5 having the punch-bits
lodged in it has been obtained ready to be placed
in position as shown in Fig. 2, so that thereafter
with every stroke of the press an operation is
caused to dwell at the top of its stroke until a
performed transferring the bits from their posi
clutch is tripped to cause it to make another 75 tion as shown in Fig. 2 to Fig. 3, and with every
cycle. After the ram has gotten out of the way
2,410,372
-stroli'e of the press a ñnished perforated work
piece is obtained.
The description of the> apparatus as described
above explains this method and apparatus in its
fundamental state.
Obviously innumerable adaptations of the prin
scribe how the elements may be applied to a ma
chine for more proficient operation.
In Fig. 11, the numeral 50 represents the bed
of a stamping press, 5| the reciprocating ram and
52 the columns which guide the ram in vertical
relation toward and from the bed. In -this case _
ciple may be made andI it is to be understood
I use the term “die set” to mean a die >shoe 53
that this patent anticipates all of them and that
having guide posts 54 ñrmly mounted to it and
the scope of this invention is not limited to the
particular forms vof apparatus illustrated in the l0 punch holder shoe 55 having guide bushings 56
drawings.
'
ñrmly mounted in it, which bushings have bear
ing apertures .which slidably engagesaid guide
As an indication of how this apparatus mayl
posts to cause said shoes to Operate in alinement.
be elaborated upon I show in Figs. 8 and 9 how
In Fig. 13, I show a novel method of mount
the elementary die plate just described may be
ing individual die elements 60 and 6l in a box-like
mounted in spaced relation above the bed or
structure which locates said die elements ac
bolster of a press in such manner that the slugs
curately in relation to one another, which pro
drop through -the die openings directly into an
vides- ample slug clearance room, and which pro
' open space from which they may be` readily re
moved as illustrated in Fig. 8. Die plate 40 is
, vides a die element assembly unit which may be
rapidly mounted on the shoe 53 of a die set and
similar to die plate I 2 in the previous illustrations,
the difference being that it is provided with coun 20 which may also be removed readily so that a simi
lar unit having a different pattern of holes may
terbored holes 4l which accommodate cap screws
replace it. In the organization of- this die as
42 which extend through spacer blocks 43 and
sembly unit the die element 60 is provided with
fasten a lower plate 44 to them to form a die ele
an accurately sized locating diameter 62 reduced
ment unit providing a space for accommodation
of the slugs. If desired, one or more additional 26 from -the body to provide a limiting face 63 on
which a template 64 rests, diameter 62 being ac
spacer elements 45 may be provided to support
curately sized to ñt tightly into template aper
die plate 46 when it becomes of such size that
supports are required.
-ture 64a and being of a length which causes it
to project above the upper face of said tem
The numerals 46 represent an extension means
which may be attached to the apparatus to pro 30 plate as indicated by numeral 65. After the die
elements 60 and 6|, which indicate that a mul
vide a. resting place for the punch guide plate
tiplicity of any number of similar unitsmay be
I3 when the plates are to be changed manually.
assembled in the template, are located in their
If desired this means may be loose, for move
proper apertures, the plate is placed upon ‘spacers
ment back" and forth, and may have a cross bar
35 61, which may be assembled tightly to a base
to> scrape »the slugs out of space below the dies.
plate 68, and the plates are then held together
Fig. 10 illustrates the purpose of the extension
by means of a multiplicity of screws Ilili. A
rests and describes the manual operation elear
multiplicity of gauge pins 69 may be fastened '
ly. In Fig. 10 the following letters represent the
to template 64 for locating the work-piece 10 in
work-pieces and parts of the apparatus. (a) up
per work-piece, (b) lower work-piece, (d) die ele 40 exact relation with the die apertures.
As indicated in Fig 12 template 64 may be pro
ment, (e) extension bars, (y) gauge pins, (m)
vided with hand openings 1| to provide clear#~
master punch-bit guide plate, (p) punch-bits.
ance so the work-piece may be seized when feed
A illustrates the apparatus after the punch
ing or. removing same. The assembled die ele
bits have been transferred from plate a and lodged
ment unit after being accurately located with the
in plate b. After `the part of the operation shown
die element apertures in coaxial alinement with
at A has been performed, the procedure is as
the punch-bit guiding apertures of the guide
follows:
plate 12, is firmly fastened to die shoe 53 by
As illustrated by view B plate m is lifted from
the apparatus as shown, and may be tilted so 50 means of cap ,screws 13 which extend through
lower plate 68 and into threaded openings in the
that part a which is now a finished perforated
shoe.
’
work-piece slides from said pla-te onto a receiver
The
organization
of
the
upper portion of the
for said finished parts, and then m is placed upon
assemblage as illustrated in Fig. 11 consists of
mounting the master punch-bit guide plate 12,
m has been placed uponl e. At any rate, Work
pîece a is completed and removed from further
illustration.
55 having a multiplicity of apertures 14 each in ax
°
ial relation with its companion die aperture 15,
to the ram shoe by means of yieldable supporting
means 16.
Y
_
'
As illustrated by C, m rests upon e. Work-piece
In
operation
the
plainwork~piece
10 is placed
b havingv the punch-bits p lodged in lt is still in 60
in the apparatus so that it rests on the upper
position on die element plate d.
faces of the die elements 60, 61, being properly
As shown at D this work-piece b together with
located in position by gauge means 69. Work
the punch-bits is removed from the die plate andpiece 11, carrying a multiplicity of punch-bits 18
new work-piece 65
by having its edges pressed into contact with the .
gauges g as shown at E. Then master plate m
which now carries work-piece b and punch-bits
p is placed in its axially alinedv position as illus
trated at F and the apparatus is' then ready to 70
have the ram drive the punch-bits into c thereby
~ upon die element d being located
completing the cycle. ~'
.
'
is placed in the space between upper shoe 55 and ^
guide plate 12 so that it rests-upon the latter with
each punch-bit 18 in its guide aperture 14.
In operation the ram _of the press is caused to
make one stroke and in doing so guide plate 12k
contacts work-piece 10 and dwells thereon under
pressure of resilient elements 16, while shoe 55
continues its downward motion until it drives
punch-bits 18 downward through guide apertures
14 and lodges` them in the work-piece 10. Then
Having thus illustrated how the apparatus is
operated in its simplest form, I shall lnow de 76 the ram ascends and carries work-piece 11 with
1t. Work-piece 11 is now free of the punch-bits
n 2,410,372
and has holes remaining in their place, the
punch-bits being lodged in Work-piece 10 which
still rests onv the die elements.
Finished work
piece 11 is then removed from plate 12 and re
placed by work-piece 10, which now has the
punch-bits lodged in it, and as explained above,
is properly located because the punch-bits pro
ject into their individual guide holes. A new
blank work-piece is placed upon the die elements
and the operation is repeated until the desired 10
number of work-pieces has been run.
In Figs. 14, 15 and 16, I illustrate an alternate
12
work-piece and shows the clearance which exists
between the shanks |02 of the punch-bits and
the openings |03 and |04 in the upper work-piece
99 and guide plate 80. As the ram of the press
ascends carrying the upper portion of the appa
ratus with it, work-piece 81 remains in its po
sition resting on the faces of the die elements
and the punch-bits remain lodged in it. Owing
to the reduction in the diameters of the punch
bits, work-piece 99 is lifted clear of the punch
bits by plate 80 which comes to rest inv an elevat
ed position as indicated in Fig. 14 so that the
perforated work-piece may be slid from its p0
form of apparatus wherein the master punch
sition on top of plate 80 and the lower work
plate 80 hangs by its own weight suspended be
piece 81, which now has the punch-bits lodged
low the upper shoe 8| of a die,r set and is held 15 in it, positioned on top of the plate as indicated
there by means of a plurality of telescopic link
by numeral 99, after which a new work-piece 81
ages. These linkages are so constructed as to
is
placed on the dies and the operation repeated
provide accurate vertical movement of plate 80
until the desired number of work-pieces is run.
so that in operation apertures 83 are always in
In Figs. 17 and 1_8, I illustrate an alternate form
axial alinement with die apertures 82. As illus 20 of apparatus of the type shown in Fig. l1, the
trated in Fig. 14 plate 80 is shown in an elevated
principal difference being that a means is pro
position above the stationary die element which
vided under themaster punch plate for carrying
is the same as was described in connection with
the under work-piece with it as I shall now de
the illustration shown in Fig. 13.
scribe.
In Fig. 14 numeral 84 represents a guide pin 25
Numeral |I0 represents a press bed; |I| the
which catches hole 85, as plate 80 approaches it
> columns; and ||2 the ram which reciprocates
and aligns plate 80 in exact relation with the die
toward and from the bed. To the bed, a bolster
members so that the die openings 92 and punch
plate is usually attached, but in the illustrations
bit guide apertures 83 are in axial relation with
I omit this plate and show the die shoe i |3 mount
one another. Obviously a multiplicity of the 30 ed directly to the press bed where it is tightly fas
guide means 84 and 85 are desirable and pins 84
tened. ||4 is the punch holder member of a die
may be used, as indicated by numeral 86, as
set and H5 the guide posts which cause the
punch holder to move in vertical alinement with
proper relation to the die elements.
die shoe.
As illustrated in Fig. 14 the linkage which 35 theThe
die set, consisting of die shoe H3, punch
guides andsupports the guideplate 80, consists
holder ||4 and guide posts |I5, may remain in
of sleeve 88 which is a sliding iit in a bearing 89
the press to be used as a general purpose mount
provided in upper punchshoe 8|. Sleeve 88 is
ing means for punch and die plates having differ
provided with a central opening 90 which ac
ent patterns of holes or the entire assemblage
commodates the head 9| of screw 92 which is 40
may be changed, if desired.
«
threaded into 8| as indicated by numeral 93.
Numeral H6 inlicates a die mounting base
Both the diameter of the head 9| which is a slid
plate; ||1 a die supporting plate and IIB a die
ing fit in opening 90. and diameter 88 which is a
plate which is usually combinedl permanently with
sliding ilt in opening 89, serve the purpose of
its supporting plate. In this instance a space | I9
guiding the sleeve in close vertical movement
is
provided under the supporting plate by mount
-with the die set. The sleeve is provided with
ing this pate on supports |20 and |2| to provide
a _reduced innermost section to form an inward
„ room for removal of the punched out slugs which
gauge means for positioning work-piece 81 in
ly facing shoulder 94 for engagement with shoul
accumulate thereunder.
der 95 of the screw to limit the travel of guide
Numeral |26 represents the master punch
plate 80 in relation to the lower face of the upper 50
plate; |21 the upper work-piece and |28 the
shoe 8|. At its plate engaging end, this sleeve
punch-bits which are lodged therein. |29 indi
is provided with an enlargement which forms a
cates approximate work gauging means although
bearing 96 against which the upper face of plate
the iinal accurate gauging comes from the punch
80 rests when assembled to said sleeve and is
bits entering into the master plate apertures as
held there by any conventional means such as
explained previously.
nut 91 which cooperates with threaded portion
Master plate |26 is yieldably mounted to punch '
98 for that purpose. Bearing apertures |05 in
holder ||4 by means of a p‘urality of resilient
plate 80 iit closely around bearings |06 of guide
members a preferred form of which is illustrated
sleeve 98 to prevent any horizontal movement of
60 in Fig. 18 wherein |30 is a mounting bolt; |3|
the plate.
a spring; |32 a sleeve and |33 a nut which holds
As explained prev’ously, in connection with the
the master plate tightly to the sleeve.
apparatus shown in Fig. 11. thel upper work-piece
The extent to which the sleeve may move in
99 which carries a multiplicity of punch-bits is
relation to the face of the punch holder is lim
placed upon plate 80, as illustrated in Fig. 14.
ited by internal shoulder |35a engaging the
Fig. 15 shows the apparatus illustrated in Fig. 65 underside
of the-head |35 when the spring ex
14 in a partly descending position> wherein the
lower face oi.' the punch-bit is just contacting the
pands. A plurality of these units are mounted
so las to maintain the master plate in parallel
relation to the punch holder face at all times.
Under master plate |26.are attached a suitable
70
gauge pins 84 operate to align plates 80 and |0|
number of work positioning and lifting members
just before the bits are driven into work-piece 81.
|36 and |31. Members |36 are provided with
Fig. 16 illustrates the apparatus shown in Figs.
gauge faces |38 against which the work-piece is
14 and 15 morevfully and shows the apparatus at
placed prior to receiving the punch-bits |23 when
the lower-most part of its stroke in which the
75 the press is operated. Members |31 are similar
upper face of the lower work-piece as indicated
by numeral |00 and shows how a plurality of
punch-bits have been driven into the lower
2,410,872
13
to |36 but are set away from the work to provide
clearance |30 so that the work may be readily
placed on the ledges |40 of the members.
In operation
l
the work-pieces are placed
in theV
apparatus as illustrated in Fig. 17; then the clutch
of the press is tripped, causing the ram to make
lodging places which they form in a second work
piece.
3. A method of manufacture consisting in
transferring a plurality of punch mediums by
pressure from their lodging places in one work
piece, through a guide plate accurately apertured
to receive and guide said punch mediums, into
of its stroke the apparatus appears as shown in
Fig. 18.
v/
`
lodging places which they form in a second work
It will be noted that member |36 projects into 10 piece by forcing slugs ¿into die openings axially
alined with said guide plate apertures.
openings |4| and |42 which are provided to ac
4. A method of punching consisting of lodging
commodate it. As the ram ascends and returns
a plurality of traveler punch-bits in a first work
to its elevated position, work-piece |21 has parted
piece, placing said work-piece >on a guide plate
with punch-bits |28 which are then lodged in the
having apertures accurately formed to receive
under work-piece |22, and this work-piece is
lifted upward from the die plate | I8 by the ledges 15 and guide said punch-bits, then placing a second
one reciprocating cycle. At the lowermost point
|26. Lower work-piece | 22, which has the punch
work-piece on die elements under said guide plate,
said die elements having openings formed in axial
alinement with said apertures, then applying
bits in it, is then placed in position above master
pressure on said punch-bits -to transfer same from
|40. In this position the work-piece |21 may be
readily slid from its position above master plate
plate |26; a new work-piece |22 is inserted on 20
ledges |40 and located against stops |38 and the
operation is then repeated.
When the master punch plate is resiliently
5. A method of punching consisting in lodging
mounted to the upper holder as illustrated by ele
ments 16 in Fig. 11 and by numerals 130 to 135 25 a plurality of traveler punch-bits in a work-piece,
then forceably transferring said bits from said
inclusive in Fig. 18, it is possible that the plates
may tend to bend under the weight of the spring
pressure, if heavy, due to the overhang of the
rwork-piece to another through an interposed
guide plate provided with means for guiding said
punch-bits, whereby a multiplicity of holes are
30 left in the work-piece from which said punch-bits
such event any _supporting means may be used
are transferred.
to counteract this pressure to prevent such bend
ing.
6. A method of punching consisting in lodging
a plurality of traveler punch-bits in a work-piece,
By way of example I show, in Fig. 18, one of a
plate as it rests on the lower Work-piece.
In
plurality of vertically adjustable screw elements 35 then forceably transferring said bits from said
work-piece to another through an interposed
|43 having threads for engagement with thread
ed openings
y
-| 44 in supports |20. Each
element ` guide plate provided with means for guiding said
may be provided with an enlarged head |45 of
irregular shape to accommodate an .exterior
punch-bits, whereby a multiplicity of holes are left
in each work-piece from which said punch-bits '
wrench or with a socket |46 to accommodate a- 40 are transferred and whereby the last work-piece
of a run receives said punch-bits and retains them
in readiness for the start of a subsequent run.
l element in relation to its carrier.
socket Wrench for the purpose of adjusting the
As shown in the illustration, element |43 is
adjusted so that its upper face |41 engages the
bottom face |48 of the resilient member at a
position which supports the extending portions of
plate |2‘6 on the same plane with that portion
which rests on work-piece | 22 and thereby pre
7. A method of manufacture involving two
.work-pieces, consisting in transferring a plu
rality of tool mediums from their lodging places
in one of the work-pieces, to guide means inter
posed between said work-pieces, thence to the
second work-piece.
8. In a method of kmanufacture consisting in
vents bending of plate |26. If work-piece | 22
transferring a plurality of tool mediums from
were thinner than shown the scréw element would 50 their
lodging place in one work-piece, through an .
be screwed downward to >compensate for the dif
interposed guide plate provided with means for.
ference in thickness and if thicker it would be
screwed upwardly. Plates ||1 and ||8 are pro
-vided with clearance openings |49 and |50 of suf
guiding said tool mediums into a second work
piece, the step of causing said mediums to form
lodging places for themselves in said second work
ficient size to accommodate screw head |45 or
55 piece by forcing material out of it and into re
nut» |33 without interference.
ceiving mediums.
Although the form shown in the drawings
9. A method of multiple punching consisting in
represents a, practical embodiment of my inven
lodging a plurality of punches in a work-piece,
tion, it is to be understood that the same may
placing said work-piece and lodged punches on a
be varied as to details and still contain the es
60 guide plate having apertures accurately formed
sence of my improvements as summed up in the
to guide said punches, placing a second work
following claims.
I claim as my invention:
piece under said guide plate with both work
pieces being located in identical relation with said
1. A method of manufacture consisting in
transferring a plurality of punch mediums by
apertures,` then applying pressure on said
5 punches, whereby same are transferred from their
pressure from their lodging places in one of two
work-pieces, to guide means located between said
lodging places in the first work-piece, through
said guide plate apertures, into said second work
work-pieces, thence into lodging places which
piece, while simultaneously removing material
they form in thel other of the work-pieces.
from said second work-piece, and forcing said
2. A method of manufacture consisting in 70 material into die openings which cooperate with
said punches to form lodging places for said
transferring a plurality of punch mediums by
punches in said second work-piece and produce
pressure from their lodging places in one work~
holes in said first work-piece.
piece, through a guide plate accurately apertured
. 10. A method of punching a multiplicity of holes
to receive and guide said punch mediums, into
75 in a quantity of work-pieces consisting in plac
2,410,872
15
ins a traveler punch-bit in, each of' a plurality
of apertures in a master plate placed above the
first work-piece, driving said punch-bits by pres
sure .into said work-piece thereby ‘ driving the
slugs formed by said punch-bits into companion
die openings, and then placing said work-piece
16
17. A method of punching openings in sheets oi
material whereby punch mediums are transferred
under pressure from the ñrst sheet of a pair of
work-sheets to guiding means located between
said pair of work-sheets, thence into Ithe second
sheet of said work-sheets, said punch mediums
remaining in said second work-sheet and being
and lodged punch-bits on said master plate, driv
released from said iirst work-sheet and said guid
ing said punch-bits from their lodging places in
ing means.
.
said work-piece through 'the apertures in said
18. A method of punching consisting in pro
master plate and lodging them in a second work 10 viding a short punch-blt, embedding said bit in a
piece, and then placing said second work-piece
first piece of material, placing said material and
and lodged punch-bits on said master plate and
bit on a master plate having guide means for said
transferring the punch-bits in the same manner
bit, placing a counterpart of said piece of ma
to a third work-piece and then repeating the per
terial under said master plate and then pressing
15
formancev until the desired quantity of work
said bit through said first piece and guide means
pieces has been punched.
‘
11. A method of punching consisting of lodging
a traveler punch-bit in a first work-piece, placing
said work-piece on a guide plate having'a hole
into said counterpart whereby said ñrst piece is
punched and said counterpart has the punch-bit
embedded in it.
19. The method of punching holes in a metal
accurately ` formed to receive said punch-bit, 20 Work-piece with the usel of a jig plate having
placing a second work-piece on a die element
openings formed therein in predetermined rela
companion to said punch-bit and under said guide
tive positions, which comprises locating the jig
plate and then applying pressure on said bit to
plate in a predetermined position relative to the
transfer it from its lodgingvplace in said first
on one face thereof with punch-bits
work-piece through said aperture and into a 25 work-piece
slidably mounted in the openings, closely confin
lodging place which it forms in said second Worle
ing the face of the work-piece remote from the
piece.
f
jig plate around free spaces directly opposite to
12. A method of punching consisting in lodging
and
co-extensive in area with the ends of the
a traveler punch-bit in a first work-piece then
punch-bits, subjecting the punch-bits simul
forceably transferring said bit from one work 30 taneously to an impact to cause the ends of the
piecek to another, through an interposed guide
punch-bits adjacent the work-piece to punch
plate, whereby a hole is left in each work-piece
holes in the work-piece over said free spaces and
from-which said punch-bit travels, and whereby
move into the holes, then stripping the jig plate
said last work-piece of a run receives said punch
from the work-piece and replacing the latter with
bit and retains it in readiness for the start of a 35 a second work-piece, placing the jig plate on said
subsequent run.
‘
second work-piece, then placing the ilrst work
13. In a method of manufacture consisting in
piece, having said ,punch-bits lodged in it on said
transferring a tool medium from its lodging place
jig plate, again subjecting the punch-bits simul
in-one work-piece through an interposed guide
plate, into a second work-piece. the step of caus 40 taneously to an impact to cause the punch-bits
to leave their lodging places in said first work
ing said medium to form a lodging place for it
niece and to travel again through said openings
by
forcing
material- self in said second work-piece
in said jig plate and to cause the ends of the
out of it and into a receiving medium.
punch-bits to punch holes in said second work
14. A method of punching consisting in lodging
a punch in a work-piece, placing said work-piece 45 piece and move into the holes and to remain
there until transferred to a third work-piece upon
and lodged punch on a guide plate having an
repetition of the method thereby producing the
aperture accurately formed to receive said punch,
desired holes in each work-piece from which said
placing a second work-piece under said guide
punch-bits are removed.
`
p
plate with both work-pieces being positioned in
20. The method of punching holes in a metal
identical relation with said aperture, then apply 50 work-piece
with the use of a jig plate having
ing pressure on said Y punch whereby same is
openings formed therein in predetermined posi
transferred from its lodging placev in the ñrst
tions relative to a reference on the jig plate,
which comprises locating the jig plate on one
material from said second work-piece and forc 55 side of the work-piece and interlocking the :lig
plate and work-piece at said reference and at a
ing said material into a die opening to form a
work-piece, through said aperture into said sec
ond work-piece, while simultaneously removing
lodging place in said second work-piece and form
a hole in said nrst work-piece.
predetermined reference on the work-piece with
the punch-bits slidably mounted -in said open
ings, subjecting the punch-bits simultaneously
15. A method of punching consisting in placing
to an impact to cause the ends of the punch-bits
60
a punch-blt detachably in a retainer, driving said
adjacent the work-piece to punch holes in the
punch-bit into a work-piece, driving the slug
work-piece and move into the holes, then after
formed by said punch-bit into a die, whereby said
removing the jig plate and replacing the work
punch-bit remains in said work-piece until sub
piece with a counterpart, placing the lig ,plate
sequently removed by placing said work-piece
on said counterpart, then placing the work-piece,
and punch-bit above said retainer and drivinar 65 having said punch-bits lodged in it on said jig
said punch-bit from said work-piece into said
plate and again subjecting the punch-bits simul
retainer and then, upon continuation of the driv
taneously to an impact to cause the punch-bits to
ing force, driving said punch-bit through said re
leave their lodging places in said work-piece, and
tainer and into a second work-piece, thereby leav
to travel again through said openings in said jig
70
ing a hole in said ñrst work-piece.
16. A method of punching an opening in a. sheet
of material whereby a punch ‘medium is trans-`
ferred under pressure from said sheet, to a guid
ing means between said sheet and a second sheet,
75
thence to said second sheet.
plate and to cause the ends of the punch-bits to I
punch holes in said counterpart and move into
the holes and to remain there until transferred
to another counterpart upon repetition of the
operation, thereby producing the desired holes in
17
2,41 0,872
18
said work-piece and each counterpart from which
with said openings in alinement, a punch anvil
said punch-bits are removed.
21. 'I'he method of punching holes in a Work
piece with the use of a die plate and a jig plate
engageable with the ends of the punch-bit re--
mote from the work-piece for causing the oppo
site ends'to punch holes in.the work-piece and
having openings therein in predetermined posi
move into the holes and means for positioning
tions relative to a reference on either of said
said punch-bits, while lodged in said work-piece,
plates'which comprises placing the Work-piece
above said jig openings in such manner that a
between the die plate and the jig plate with
counterpartwhich replaces said work-piece under
punch-bits in the jig plate openings, interlocking
the die plate and 'jig plate at said references, sub 10 said jig will receive said punch-bits in the same
locations they are in said work-piece when said
jecting the punch-bits simultaneously to an im
bits are caused to move from said work-piece
pact to cause the ends of the punch-bits adjacent
through said jig openings and into said counter
the work-piece to punch holes in the work-piece
part, thus producing thedesired multiplicity of
and move into the holes, then after removing the
~ holes in said Work-piece.
.iig plate and replacing the wor -piece with a 15
counterpart, placing the jig plate on said counter
part, then placing the work-piece, having said
punch-bits lodged in it on said jig plate and again
subjecting the punch-bits simultaneously to an
25. An apparatus for punching a multiplicity of
holes in a Work-piece which comprises a die hav
ing a seat for the work-piece, a jig having a plu
rality oi' openings for receiving punch-bits, 'means
interlocking the die. the work-piece and the `
impact to cause the punch-bits to leave their 20 for
jig with the work-piece between the die and jig `
lodging places in said work-piece and to travel
and with said openings disposed in predetermined
again through said openings in said jig plate and
positions relative to the work-piece. a punch an~ i
to cause the ends of the punch-bits to punch
vil engageable with the ends of the punch-bits
holes in said counterpart and move into the holes
from the work-piece for causing opposite
and to remain there until transferred to another 25 remote
ends to punch holes in the work-piece and move
counterpart upon repetition of the operation,
into the holes and means for positioning said
thereby producing the desired holes in said work
punch-bits, while lodged in said work~piece, above
piece and -each subsequent counterpart from
said .iig openings in such manner that a counter
which said punch-bits are removed.
~
22. An apparatus for punching a hole ina 30 part which replaces said work-piece under said
jig will receive said punch-bits in the same loca
Vwork-piece, which comprises a jig plate having
tions
they are in said work-piece when said bits
an opening for receiving a punch-bit, means for
are caused to move from said work-piece through
interlocking the jig plate and work-piece with
said jig openings and into said counterpart, thus
said opening disposed in a predetermined posi
producing
tion relative to the work-piece, and a punch anvil 35 work-piece.the desired multiplicity of holes in said
engageabie with the end 0f the punch-bit remote
26. An apparatus for punching a multiplicity
from the work-piece >for causing the opposite end
of holes in a work-piece which comprises a"'die
to punch a hole in the work-piece and move into
having a seat for the work-piece and a plurality
the hole and means for locating said work~piece
with said punch-bit lodged in it above said jig 40 of openings in the seat, a plurality of pinsl pro
jecting from the seat, a jig having a plurality of
plate in such manner that a counterpart which
openings for receiving punch-bits and other open- '
replaces said work-piece under said plate will re
ings
for receiving said pins. said openings in the
ceive said punch-bit in the same location as it
jig being disposed in predetermined relative posi
is in said work-piece when said bit isicaused by
said punch to move from said work-piece through 45 tions, the pins extending outside at the area of
the work-piece into the jig to interlock the mem
said jig plate opening and into said counterpart,
bers with the work-piece between the die and Jig
thus producing the desired hole in said work
piece.
and with said ñrst openings in the jig and said
die openings in alinement and a punch anvil en
23. ¿in apparatus for punching a hole in a
work-piece which comprises a die having a seat 50 gageable with the ends oi’ the punch-bits remote
from the Work-piece for causing the opposite ends`
i’or the work-piece. a jig having an opening for
to punch holes in the work-piece and move into
receiving a punch-bit, means for interlocking the
the holes and means for positioning said punch
die, the work»piece and the jig -with the Work
bits, while lodged in said work-piece, above said
between the die and jig and with said opening
disposed in a predetermined position relative to 55 jig openings in such manner that a counterpart
which replaces said work-piece under said jig will
the Work-piece, and a punch anvil engageable
receive said punch-bits in the same locations as
with the end of the punch-bit remote from the
they are in said work-piece when said bits are
work-piece for causing the opposite end to punch
caused to move from said work-piece through said
a hole in the work-piece and move into the hole
and means for locating said work-piece with said 60 jig openings and into said counterpart. thus pro
ducing the desired multiplicity of holes- in said
punch-bit lodged in it above said jig in such man
work-piece.
ner that a counterpart which replaces said work
2’7. An apparatus 'for punching a multiplicity
piece under said iig will receive said punch-bit
of holes in aowork-piece which comprises a die
in the same location it is in said work-piece when
said blt is caused by said punch to move from said 65 ‘having a seat for the work-piece anda plurality
of openings in the seat, a jig having a plurality
work-piece through said jig opening and into said
of openings for receiving punch-bits, a plurality
counterpart, thus producing the desired hole in
said work-«piece
of pins projecting from the die seat to form a
nest around the periphery of the work-piece and
24. An apparatus for punching a multiplicity of
holes in a work-piece which comprises e. die hav 70 having a close iit around same, the pins having
ing a seat for the Work-piece and a plurality of ' an end portion fitted closely in other openings
in the jig located in a predetermined position rela~
openings in the seat, a jig having a plurality of
tive to said iirst openings in the jig, whereby the
omnings for receiving punch-bits, means for in
die, the work-piece and the jig are interlocked
terlocking the die, the work-piece and the jig
with the worirspiece between the die and jig and 7.5 with said punch-bit and die openings in aline
ment. and a punch anvil engageable with the ends
2,410,872
19
oi' the punch-bits remote from the work-piece for
causing the opposite ends to punch holes in the
Y work-piece and move into the holes and means
for positioning said punch-bits, while lodged in
said work-piece, above said jig openings in such
manner that a counterpart, which replaces said
work-piece under said jig will receive said punch- l
bits in the same locations they are in said work
in such manner that force applied on said punch
bits drives them out of the work-piece and into
the apertures in said punch-bit plate thus leaving
holes formed in said work-piece at locations from
ywhich said punch-bits are removed.
32.`The method of punching a multiplicity of
holes in a ilrst work-piece by using a second work
piece to locate travelling punch elements in co
axial relation with guide apertures which extend
work-piece through saidv jig openings and into 10 through a master member, said first work-piece
being positioned at one end of said apertures and
said counterpart, thus producing the desired mul
being interposed between said apertures and die
tiplicity of holes in said work-piece.
.
28. Means for positioning a multiplicity of ' means having openings directly opposite and co
extensive with said apertures and then subjecting
punch elements in axial alinement with their
companion guide apertures in a plate, consisting l5 said punching elements to an impact to cause the
ends of same adjacent said ñrst work-piece to
in lodging said elements in a member by .guiding
» move through said apertures and to punch holes
them through said plate, then placing said mem
and move into the holes whereby the desired mul
ber on _the opposite side of said plate with pro
tiplicity of holes are formed in said first work-l
jecting ends of the punch elements entered into
said guide apertures.
20 piece.
33. A hole punching apparatus for use in a press
29. A sheet- material perforating apparatus
having a stationary bed and reciprocating ram,
comprising punch-bit guide means, for operation
piece when said bits are caused to move from said
between two work-pieces, and die means, alined in
coaxial relation with one another in such manner
comprising a die set having a lower shoe adapted
to be rigidly mounted to said bed, an upper shoe
placed on said guide means are transferred, under
means for causing the two shoes to operate in
alinement, a pair of templates, one under said
upper shoe, the other upon said lower shoe,
that punch-bits lodged in one of the work-pieces 25 adapted to be rigidly mounted to said ram. and
pressure, from said work-piece, to said guide
means, thence to the other work-piece resting on
said die means.
mounted in such manner that the upper tem
30. Means for placing each of a plurality of 30 plate is resiliently held in spaced relation to the
upper shoe so that a first work-piece in winch a
punch elements in axial alinement with its re
plurality of punch elements are lodged may be 4
spective guide aperture in a iig plate consisting
inserted into said space and positioned with said
in lodging said elements in a member in accord
bits in axial alinement with apertures through
ance with the pattern of apertures in said plate
in such manner that at least two of said elements 35 said template; and the lower template, which is
provided with a plurality of die elements for
extend beyond the face of said member to engage
cooperation with said punch elements, is securely
their respective apertures when said member is
mounted to the lower shoe in such mannerv that
placed upon said .11g plate.
a second work-piece placed upon said die ele
3l. A perforating apparatus including a die
plate having a plurality of die openings. a punch 40 ments will receive said punch elements ‘when said
ram forces said elements from said first work
bit carrying plate guided for movement toward
piece through said apertures.
and from said die plate and having apertures ar
34. A hole punching apparatus according to
ranged with each aperture in axial alinement with
claim 33 and including means for supporting said
a die opening, punch-bits having their work
piece penetrating ends guided in said apertures in 45 upper template against distortion forces exerted
by the resilient elements.
.
said carrying plate and being retained in said po
GEORGE F. WALES.
sition by a work-piece in which they are lodged
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