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Патент USA US2404161

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July 15;.1946‘
I
2,404,161
B. F. BOWER
INDEXING AND CHUCKING DEVICE
‘4 Sheéts-Sheetyl
Filed May 28‘, 1é45'
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July-16,1946.
2,404,161
B. F. BOWER‘
I INDEXING AND CHUCKINGJDEVICE
4 Sheets-Sheet.- 2
Filedi-May .28, 1945
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July 1'6, 1946.‘
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B. "F. BOWER
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' 2,404,161‘
IND-BIKING AND ‘CHUCKING' DEVICE I
'FiQéd May 28, 1945
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2,404,161
Patented July 16, 1946
UNITED STATES PATENT. OFFICE
i
INDEXING AND CHUCKING DEVICE V
' ,Byron F. Bower, Aurora, 111., assignor to Pines
Engineering Company, Aurora, 111., a corpora
tion of Illinois '
1
Application May 28, 1945,‘ Serial No. 596,247
12 Claims. (01. 82-2)
V
The present invention relates to indexing and
chucking devices ‘for machines that operate upon
one or both ends of a length of stock such as a
tube or a rod. It is the principal purpose of the
invention to provide means to feed and position
the work at a high rate of speed so that the
operating tools can be used to the maximum
capacity with a minimum delay in the position
ing of new work and, the discharging of v?nished
work.
’
It is alsothe purpose of my invention to provide
in combination a reel feeding mechanism and an
automatic self centering chuck so arranged that
the lengths of tubing and the like can be ad
vanced to chucking position along a proper cen
ing lengths of stock
like. The present
whereby the stock
source (not shown)
2
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such as tubing, rods and the
invention provides means
can be fed from a supply
and held in a proper posi
tion for the cutting or ?nishing operation to be
performed thereon by tools located at one or both
ends of the’ work holding device. As shown in
the drawings a base Ill carries two spaced apart
machines II ‘and I2. ‘The base ID has a track I3
10 on which the machines I I and [2' may be moved
toward and away from each other to accommo
date work of different lengths. Normally one‘ of
the machines I2 will be placed at one end of the .
base and the other machine will be adjustable
15 with respect to the machine I2 along the track
ter line and then seized by the chuck with‘ a ‘high
degree of accuracy and speed.“ It ‘is also the
having cutting or ?nishing tool heads l4 and l5v
purpose of ‘the invention to provide a novel mech
thereon for performing work upon a work piece 1
I3.
I have shown the machines II and I2 as
anism for opening and closing the chuck itself
I6. The heads I4 and I5 are of course movable
in such a fashion that the work is rigidly held 20 toward and away from the work. 7
when the chuck is closed but the chuck is opened
The feeding mechanism by which the work is
wide so that the reel can move the work into
fed to position rbetween the heads I 4 and I5 com
the chuck regardless of great ‘variation in the
prises a shaft I‘! which is .journaled in two bear
size of the work.
a
>
v
ings I8 and I9 carried by the frames of the ma
The nature and advantages of my‘ invention 25 chines I I and I2. These bearings are mounted
.will appear more fully from the following de
upon plates ‘20 and 2| of the aforesaid frames.
scription and the accompanying drawings where
Two notched discs 22 and 23 are provided with
in a preferred form of the invention is shown.
hubs 25 and 26 that are fastened upon shaft IT.
It is to be understood however, that the drawings
A ratchet wheel 21 is also secured upon the shaft
and descriptions are illustrative only and that '30 If! so that it may be utilized to rotate the shaft
they should not be considered as limiting the in
and. the discs 22;, and 23. In order to rotate the
vention except insofar as it is limited by the
ratchet wheel 21 I provide a link mechanism 28
claims,
-
In the drawings:
comprising two bars 29 and 30 connected together
by a pin 3| that is adapted to ride over the teeth
Figure 1 is a view in side elevation of a tube end 35 21a of the ratchet wheel 21 and turn the ratchet
?nishing machine embodying my invention;
wheel step by step. The link 28 is pivoted at 32
Figure 2 is a cross sectional view taken on the
to a. piston rod 33. The piston rod 33 is secured
line 2—2 of Figure 1;
to a piston 34 and ‘a hydraulic cylinder 35 to
Figure 3 is a detailed view on a smaller scale
which hydraulic ?uid is supplied ?rst to one end
of an adjustable support plate and its mounting. 40 and then to the other end from a suitable source.
means;
The piston 34 is thus reciprocated at de?nite in
Figure 4 is a cross sectional view on the line
tervals to advance the discs 22 and 23 in the direc
4-—4 of Figure 3 illustrating the mechanism by
tion of the arrowshown in Figure 2 in order to
which the adjustable support plate is moved;
bring the work pieces I6 into position between
Figure 5 is a cross sectional view through the 45 the-heads I4‘ and I5.
'
chuck operating mechanism showing a modi?ed
The Work pieces such ‘as I6 may be supported
form of the invention and;
along side the discs 22 and Y23 by a platform '36
Figure 6 is a side view partly in section taken
which is indicated on Figure 2 of the drawings.
at right angles to Figure '5. ‘
These platforms are usually inclined so that the
Referring now in detail to the drawings, the 60 work may roll down against- the discs and fill the
present invention is embodied in a tube ?nishing
notches as the discs are turnedQf The edges of
mechanism although it will be obvious from the
the ‘discs will of course, ‘keep the work pieces in
description that the invention is not limited ‘to
place until one of the notches‘is aligned with the
such machines. The ‘invention is applicable to V foremost workpiece- Between the machine's. ;I}I'
various'types of vmachines for‘ cutting and ?nish 55 and I2 there ‘is a ‘frame“workf?tliatgfits-civer‘gthe‘?
aeoaiei
.
é.
.
4
A coupling 86 is provided between the ends of the
bed I!) andengages the track l3. This frame is
clamped in position by two wedge shaped bars
link13 so that a limited amount of adjustments of
the length of the link 13 may be made. A cylin
38 and 39 which extend between front and back
der BI is carried in two depending portions 82 of
- portions 49 and 4| of the frame and the adjacent ,
beveled faces of the track l3. The bars 38 ‘and
39. are held in place by screw bolts 42 and 43.
the frame 31. The cylinder _is pivoted on a cross
rod 83 that is mounted on the depending portiom;
The frame 31 has two adjustable support plates
Miami 45 at the opposite ends thereof.v These
support plates are movable up and down and on
shown) supply hydraulic ?uid toithe cylinder 8%
82
of the frame.
. Suitable
connections " (not
to reciprocate the piston rod 15.
There is, of
the frame 31 by means of studs that are fastened <10 course, a piston 84 within the cylinder 8| on the
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in the frame 31 and slots in the plates. InFigJ 1 end of the rod ‘i5.
‘The form ofv chuck closing device shown in
ures 3 and 4, the adjusting means for the plates I
Figures 5 and; 6 comprises a guideframe made
44 and 45 are shown. Each plate’ is mounted on’
two studs 46 and 41 that are carried byy'the frame‘ I _' :up of one lu-shaped ‘casting 95 and two end plates
31. . ‘Each plate has three Vertically running slots 15' '86‘ and-,8]- that are bolted to the casting 85 at
their side edges by bolts 88. The casting has a
48 through which the studs and a lug 49 extend.
The frame alsov has a liftingroller 59 pivoted 'cylinder 69 secured to the bottom thereof by
fourirods 96 that extend througha head 9| of '
thereon by means of a pivot pin 5|. This roller.
the cylinder and'are threaded into the casting.
has a handle 52 thereon‘by which it may be roe“
tated on its pivot so as to raise and lower the 20 The upper end of the'cylinder is seated in‘ a
groove ‘92 in the bottom of the casting 95. vA
plate 44 or 45 with'respect to a cross bar 540i
the-‘frame 31. It is essential that the plates 44
and 45 be readily adjustable since the work pieces
piston. 93 in the cylinder has its piston‘ rod 94
ride ion these plates as- they are brought/into
bottom of ‘the casting.‘ A packing 99 is heldf‘in
position between the heads l4 and I5.
'
> The plates 44 and 45 can be adjusted to satis
extending 'up through an aperture 95 in‘ the
25 place by a capSi that‘ is fastened'by screws 93
to
factorily align the work pieces with the’ heads l4
and‘ I5 but in order for the work pieces to be
actedv upon by the'cutting or ?nishing tools‘ it
the casting.
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Each ‘of 'thevend'pl'at’es .86 and 87 has two
guide‘ ribs Y99 'and I99 formed'thereon to direct
two shoes HM and I92 that are carried by a cross
head I93 on the. upper end of the piston rod 94.
must be held rigidly in place and this is accom
plished by opposed pairs of chuck jaws 55 and 56.
Wear. plates: H14 and i|05f are fastened to the
ThesejaWs areadjacent to each of the end discs
inner jaws of the endplates .86 and 8] for-the
22 and 23. ‘In the case. of extremely long work
faces of the shoes‘ i?lfand-alllzjto ride upon. '
pieces it may bedesirable to have several inter
The cross headsupports two shafts I66 and
mediate discs like 22 and 23 between the end 35 I61. eachJoflwhich has two cam rollers: “18 jour-j
discs 22 and 23. However, only two'sets of chuck
nalled magenta opposite sides of the cross head.
jaws are needed.- These chuck jaws are pivoted
' upon a shaft 51 that is carried in ‘the frame 31.
Each 'of the jaws has a movableiliner 58. ‘ The
These cam rollers_;engag_e opposite chuck. jaws
I99: and’ H6. - The chuck jaws arepivotedruponl
two stub shaftsH-l and “2 that are ‘mounted
liners 58 are made up' in differentsizes to accom-. 40 in- the opposite walls of the casting ‘85.1 The jaw
modate variations in size of the work pieces to be
|991has its, bearings on the inner ends ofjthe
held. ’ The chuck jaws 55 and 56 are provided with
shafts; while the jaw; | I9 has its'bearings between
plane faces- 59 and 69 which faces are tapered with
respect to a vertical plane through the chuck
jaws ‘when closed and this taper is very slight.
Wear plates 60 and 6| are provided on the tapered
the ?rst named bearings‘ and the :side walls of
the'casting.
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as the :cross head is lowered. The guides 99 and
lililiand the‘platesi I04 and... I95 insure'accurate‘
guiding .of .thelcros's'. head in it's'vertical move
a
jaws 55 and 56 on a work piece l6} -It will be '
noted that the chuck jaws, when'the'y are in
opened (dotted line) position, are below the top
edges of the supporting plates 44 and Misc‘ that
they do not interfere with ‘the movement of 'a
work piece when the shaft H is rotated to bring
the work into position.
1
HIS-and [l9 as illustrated in Figure 5 show how
the jaws open by riding down on the rollers I98
faces 59 and 66 for engagementrwithchuck‘clos
ing rollers 62 and 63. The‘ chuck closing rollers
62 ‘and 63 move between the dotted and the full
line positions shown in Figure 2 to close the chuck
_-
The full and'dotted line positions of the jaws.
mentf‘
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The v?nal clamping action of the (jaws-is ob
I tained by providing tapereds'ide faces .| |3 and
“4 onthe jaws I09 and “9. 'These faces are
provided by‘ mounting tapered wear plates I ||5
and~| |6»on' the chucks. These plates may’well
i
be of hardened steel and‘ tapered to suit the
particular'work. -‘ A taperof' about '5 degrees from
The meansrfor operating the rollers 62 and 63
is best shown in Figure 2. The roller 62 is carried
the vertical is adequate in most cases. ' The oper
on a bell crank 64 which in turn is pivoted on a
ation of the wear plates is to make the ?nal clos
shaft 65 mounted on the framework 31. The
‘lower arm of the bell crank 64 is bifurcated to
receive‘one end of a link 66 which is secured by a
pin 6'! that extends through one side of the bi
furcated end of the bell crank and is threaded into
ing of the chuck'jaws' very slow and very power
ful as the cross head‘mov'es'lupward at the‘ ?nal
part of: its stroke. All of the closing: pressure is‘
'onr-therollers H18 ‘and notbn thev pivots'of the‘
the opposite side. The other end of the link 66
‘It_is believed that
V
the
_. Inature'and advantages
is secured to the upstanding arm of a bell crank ' ' jaws.->'-
.69 which is pivoted on a shaft 10. The shaft '16,
'is secured in the frame-:31. The other armv ‘H of
the bellcrank 69 is pivoted by‘a pin 12 to an ad
justable link 13. One end of the linkv13 is piv
oted by a pin 14 to apiston rod 15. The other end.
of my invention will -.be_clear to those skilled
in the art to. which it'isdirected. 'Itjis evident
70 that ‘various minor modi?cations may be made‘ 1
without, departing from they spirit and scope of
thelinventionj
cated end 11. of a bell crank 18. ,The' bell ‘crank’
pivoted on a shaft'l9 and carries the roller 63.
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, , Having'thus' describeaimyinvehugn I 01m. J
of the link 13 is pivoted by a pin ‘l6 to the bifur- '
75
,1.;’_Indexing, andgcliucking. mechjamsmtfor. p
sitioning and holding‘work pieces suchjas lengths
2,404,161:
5
tioning, and holding work piecessuch. as lengths
of tubing and rods, said: mechanism comprising
spaced apart guide members having upper edges‘v
of tubing and rods, said mechanism comprising
spaced apart guide members having upper guide
edges along which the' work pieces may. bemoved ;
along which the work pieces may be moved to
position, opposed chuck jaws pivoted to close
to position, work advancing, means comprising a
shaft above said members, spaced circular carriers
?xed on said shaft and having notches in their
upon a work piece positioned on said' members,
and to move below said guide edges for passage
of the work piecesto and from operatingposi
peripheries for seating the :work pieces, opposed
tion, and means to close said chuck jaws com,
chuck, jaws pivoted to close upon a workpiece
prising cam faces on the outer opposite surfaces
of said jaws, rollers engaging said cam faces, 10' positioned on said members, and. to move below
said guide edges for passage of the work pieces
to and from operating position, and meanszto
close said chuck jaws comprising cam faces .Ol'lithe
jaws from open'position-into closed position.
outer opposite surfaces of said jaws, rollers, en-i
2'. Indexing and chucking’ mechanism for pc
sitioning and holding work pieces such as lengths 155: gaging said cam faces, and movable. supporting
means for said rollers operable to move the rollers
of tubing and rods,’ said mechanism comprising
upwardly to‘ lift the jaws from openposition into
spaced apart guide members havingiupper‘guide
and movable supporting means for said rollers
operable to movevthe rollers upwardly to lift the
edges along, which the, work pieces may be moved
closed position.
,
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to position, opposedchuck‘jaws pivotedto'close
6. Indexing and chucking'mechanism forxp'osi
of the work pieces to and from operating posi
spaced apart guide members having upper guide.
edges along which the work pieces may be moved
upon a work piece positioned on said'members, 20 tioning and holding work pieces such as lengths
of’tubing and rods, said mechanism comprising:
and to move below said guide edges for passage ‘
tion, and means to close saidchuck jaws com
prising cam faces on the outeropposite surfaces
to position, work advancing means comprising
a shaft above said members, spacedcircular car?‘
of said jaws, rollers engaging said cam faces,iand
riers ?xed on said shaft and‘ havingnotches in"
movable supporting means for said rollers oper
able to move the rollers upwardly to lift the
jaws from open positioninto closed position, the
supporting means comprising opposed bell crank
levers, an operating member and means connect
their peripheries for seating the workpieces, the
upper guide edges on said guide members beingv
substantially segments of a circle about an axis
30 in substantially verticalialignment with said
shaft, opposed chuck jaws ‘pivoted to close upon a‘
work piece positioned on said members, and. to‘
move below said guide edges for passage of the
work pieces to and from operating position, and
ing the member and the levers for, moving the
rollers in unison.
V
V
3. Indexing and chucking mechanism for pc
sitioningand holding work pieces such as lengths 35 means to close said chuck jaws comprising cam
of tubing and rods, said mechanism comprising
faces on the outer opposite surfaces of said jaws,
spaced apart guide, members having upper guide
rollers engaging: said cam faces, and movable
edges along which the work pieces may be moved
supporting means for said rollers operable to
to position, opposed chuck jaws pivoted to close
move the rollers upwardlyto lift the jaws from
upon a work piece positioned on said members,
open position'into closed position.
and to move below said guide edges for passage
of the work pieces to and from operating posi
7 . Indexing and chucking mechanism for posi
tioning and holding work pieces such as lengths
tion, and means to close ‘said chuck jaws com
of tubing and rods, said mechanism comprising
prising cam faces on the outer opposite surfaces
spaced apart guide members having upper con
of said jaws, rollers engaging said cam faces, and 9.
i .cave supporting and guiding surfaces, along
movable supporting means for said rollers oper
which the work pieces may be moved to position,
able to move the rollers upwardly to lift the jaws
a work carrying reel for moving the work pieces
from open position into closed position, the sup
into position, opposed chuck jaws pivoted to close
porting means comprising a slide carrying said
upon a work piece positioned on said members,
rollers, and movable, to close the jaws, upwardly 50 and to move below said guide surfaces for passage
,
in a direction of a line through the pivotal axis
of said jaws, and the center line of the jaws
of the work pieces to and from operating position, 1
and means to close said chuck jaws comprising
when closed, the cam faces on said jaws di
cam faces on the outer oppositesurfaces of said ’
verging toward the free ends of the jaws whereby
jaws, rollers engaging said cam faces, and mov- ’
said rollers wedge the jaws toward each other 55 able supporting means for said rollers operable to
as they are raised.
_
move the rollers upwardly to lift the jaws from
4. Indexing and chucking mechanism for pc
open position into closed position.
sitioning and holding work pieces such as lengths
8. Indexing and chucking mechanism for posi
of tubing and rods, said mechanism comprising
tioning and holding work pieces such as lengths
spaced apart guide members having upper guide 60 of tubing and rods, said mechanism comprising
spaced apart guide members having upper con
edges along which the work pieces may be moved
to position, a work carrying reel for moving the
cave supporting and guiding surfaces, along which
work pieces into position, opposed chuck jaws
the work pieces may be'moved to position, a work
pivoted to close upon a work piece positioned on 65 carrying reel for moving the work pieces into
position, said guide members being adjustable
said members, and to move below said guide edges
for passage of the work pieces to and from oper
vertically for positioning different sizes of work,
opposed chuck jaws pivoted to close upon a work
ating position, and means to close said chuck
jaws comprising cam faces on the outer opposite
piece positioned on said members, and to move
surfaces of said jaws, rollers engaging said cam 70 below said guide surfaces for passage of the work
pieces to and from operating position, and means
faces, and movable supporting means for said
to close said chuck jaws comprising cam faces on
rollers operable to move the rollers upwardly to
- the outer opposite surfaces of said jaws, rollers
lift the jaws from open position into closed po
engaging said cam faces, and movable supporting
sition.
5. Indexing and chucking mechanism for posi
75
means for saidrollers operable to move the rollers '
2,404,161:
7
8
upwardly to lift thejaws from open positioninto
closed
position.
'
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,
9. Mechanism for positioning and, holding work
pieces such as lengths of tubing and rods, compris
ing. spaced supports, opposed chuck jawsforseiz
ing a work piece [on said supports, pivots for said
I jaws below the levelof the supports, and means
to close the jaws comprising bearing means on,
.
.11; Mechanism for positioning 'and holding
work pieces'such as lengths of tubing and rods,’
comprising spaced supports, opposed chuck jaws
for seizing a work piece on saidsupports, pivots
for said jaws below the level of thersupportavand
means to close the jaws comprising bearing means
on the outer opposite sides of said chuck jaws,
spaced apart bearing members engaging said ’
bearing means, and movable supporting means for’
apart bearing members engaging said bearing 10V said bearing members operable to raise and lower
them in unison along lines of increasing angu
means, and movable supporting means for, said
I the outer opposite sides of said chuck jaws, spaced
bearing members operable to raise and lower them
in unison along lines'of decreasing angularity with
respect to the jaws as the jaws are brought to
closed position, whereby to provide a powerful
wedging action clamping the jaws to the work.
10. Mechanism for positioning 1 and holding 7
larityvwith respect to the jaws asithe jaws are.
brought'to closed position, whereby to provide a
powerful wedging action clamping the jaws to
Lthe'work, 'said supporting means comprising a
vertically slidable drive member having opposed
chuck jaw engaging members secured thereon. ' _ ‘
"12,. Mechanism, for‘ positioning and holding
work pieces such'as'lengths of tubing and rods,
for seizing a work piece on said supports, pivots, 20; comprising spaced supports, opposed chuck jaws
work pieces such as lengths of tubing androds,
comprising spaced supports, opposed chuck jaws
for said jaws below the level of the supports, and .
means to close the'jaws comprising bearing means
on, the outer opposite sides of said chuck jaws,
spaced apart bearing members engaging said
'bearingmeans, and movable supporting means
.for said'bearing members operable to raise and
lower themin unison; along lines of decreasing
~ angularitywith respect to the jaws as, the jaws
are brought to closed position, whereby to provide
for seizing a workpiece on said supports, pivots
for said jaws below the level of the supports, and
means to close the jaws comprising bearing means
on the outer opposite sides of said chuck jaws,v
spaced apart bearing members " engaging said"?
bearing means, and movable supporting means
I for said bearing members operable to raise and
'lower them in“ unison along'lines of increasing
angularity with respect to the jaws as the jaws are
a powerful wedging action clamping the jaws to 80; brought to closed position, whereby to provide a'
powerful wedging action clamping the jaws to the
the’ work, said supporting means comprising two
‘ bell cranks pivoted on horizontal axes on opposite
1 sides of the jaws, the bell cranks having means at
work, said supporting means comprising a ver
tically slidable drive member having ‘opposed
one end engaging said bearingmeans, the other . chuck jaw engaging members secured thereon,
ends of said bell cranks beinginterconnected by 85 and said bearing means'comprising tapered plates
two links and a lever, and a common drive mem- 7
bar operatively securedto the lever andone of
the links. 7
on the chuck jaws.
- BYRON F. BOWER. .
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