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Патент USA US2411110

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Nov. 12, 1946.‘
H, E, PRUW'T
'
2,411,110
METALWORKING MACHINE
Filed Dec. 3, 1942
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METALWORKING MACHINE
Filed Dec. 3, 1942
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H. E. PRUITT
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H. E. PRUITT
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Filed Dec. 3, 1942
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Patented Nov. 12,1946
2,411,110
UNITED STATES PATENT OFFICE
2,411,110
METALWORKING MACHINE
Harvey E. Pruitt, Greenville, Mich, assignor of
one-twentieth to Gibson Refrigerator Com
pany, Greenville, Mich., a corporation of Mich- ,
igan and nineteen-twentieths to Emery M. Rice,
Hanna, Ind.
Application December 3, 1942, Serial No. 467,757
12 Claims. “ (01. 90-11)
1
1
This invention relates to metal working ma
chines.
At the present time in the shaping of small ob
2
In the drawings:
Figure 1 is a detail front elevation of a ma
. jects out of metal, it is the practice to shape such
objects on a machine known as a screw machine,
chine constructed according to an embodiment
. _ of this invention,
Figure 2 is a detail end elevation, partly broken
but such machines are not entirely satisfactory
away, of the machine,
from a production standpoint,~ and from the
1
Figure 3 is a top plan of the upper portion of
standpoint of precision. It is, therefore, an object
‘ the machine,
of this invention to provide a machine capable , .,
Figure 4 is a detail front elevation on an en
of quantity production considerably in excess of 10' larged scale of the upper portion of the machine,
the present screw machines which when put into
Figure 5 is a sectional view taken on the‘ line
operation will release such screw machines for
5-5 of Figure 1,
I
other vital work.
Figure 6 is a sectional view taken on the line
Another object of this invention. is to' provide , 6-6 of Figure 4,
a machine which while readily adaptable for the
Figure '7 is a longitudinal section partly in
production in quantity of Various articles has
detail of one of the spindle assemblies,
been specially designed for the shaping of steel
Figure 7a is a ‘fragmentary longitudinal section
projectiles for the smaller caliber guns.
of the forward portion of the assembly shown in
A further object of this invention is to provide
Figure 7,
a machine of this type which is automatic in its 20
Figure 8 is a sectional view taken on the line
operation and which will accurately shape the
8—8 of Figure 6,
‘
opposite ends of a steel projectile in a single op
Figure 9 is a sectional view taken on the line
15
eration.
‘
9-9 of Figure 2,
‘
A further object of this invention is to provide
a projectile forming machine which while capable
of great quantity production is of quite simple
25
Figure 10 is a vertical section of the base por
tion of the machine, looking from one end thereof,
Figure 11 is a sectional view taken on the line
construction and small in size.
ll-ll of Figure 5,
A further object of this invention is to provide
Figure 12 is a sectional view taken on the line
a metal working .machine which is capable of
[2-42 of Figure 5, >
‘
shaping either one or both ends of a piece of 30
Figure 13 is a fragmentary plan view partly in
metal, the machine being provided with an im
section of the feeding structure,
proved means for feeding the metal pieces to the
Figure 14 is a sectional view taken on the line
shaping members, the feeding means also‘includ
ing means for ejectingthe ?nished metal pieces
prior to the injection of a new piece.
‘
'‘
M-M of Figure 13,
Figure 15 is a sectional view taken on the line
35 |5—-l5 of Figure 13,
'
A further object of this invention is to provide
Figure 16 is a sectional View taken on the line
a machine which includes opposed‘ rotatable cut
iii-16 of Figure 13,
ting or shaping members, and a pair of article
Figure 17 is a plan-view of one of the spindle
clamping or gripping members positioned between
operating cams,
the shaping members for ?rmly gripping the ar 40 Figure 18 is a detail end elevation of one of
ticle and holding it stationary/‘during the shap
the cutter heads,
ing operation.
A further object of this invention ‘is to provide
a machine of this type which is positive in its op-‘
Figure 19 is a detail side elevation partly broken
away and in section of one ofthe cutter heads,
Figure 20 is a sectional view taken on the
eration, the rectilinear movement of the parts
line2[|—29 of Figure 19,
being effected in timed sequence by means of cams
Figure 21 is a plan View of- thelowerjanvil
operating cam,
and levers.
'
‘
>
.
This invention consists of the novel‘ construc
tion, combination and arrangement of parts as
Figure 22 is a detail side elevation of one of
the blank slugs or work-pieces,
‘
will be more speci?cally referred to and as illus
Figure 23 is a detail side elevation of the slug
or work-piece in furnished condition.
Figure 24 is a fragmentary sectional View show
ing in enlarged condition a portion of the struc
trated in the accompanying drawings wherein is
shown as embodiment of this invention, but it is
to‘ be understood that changes, variations and
modi?cations may be resorted to which fall with
in the scope of the invention as claimed.
.
ture shown in Figure 6,
55
Figure 25 is a fragmentary vertical section
2,411,110
partly in detail through the center of the ma
chine showing the anvils in open position and
the carriage in slug receiving position,
Figure 26 is a view similar to Figure 25 but
showing the ?nished slug discharged from the
carriage and a new'slug gripped between the
a-nvils or clamping members,
4.
designated as 52. The ejecting member 52 com
prises an elongated rod 53 which is slidable in a
vertically disposed passage 54 provided in the
body 4| and the lower end of the rod 53 is re
duced as at 55 and slidably engages in a reduced
passage or opening 56 formed in the reduced
clamping member 50.
_
’
The upper end of the rod 53 has ?xed thereto
Figure 27 is a fragmentary sectional view taken
or formed integral therewith an annular flange 51
on the line 2'|—2l of Figure 1,
Figure 28 is a sectional view taken on the line 10 which is slidable in an elongated opening 58
formed coaxial with the opening or passage 54.
28--28 of Figure 5, and
A spring 59 is disposed in the opening 58 and
Figure 29 is a plan view of the lower anvil or
bears at oneend against the ?ange 51 and at the
clamping member.
other or upper end against a spring tensioning
Referring to the drawings, the numeral 38.
designates generally a hollow base or supporting 15 plug 58 which is threaded through the upper
portion of the body 4|. The spring 59 constantly
structure on the upper end of which is mounted
urges the slug ejecting pin 55 downwardly so
a bed, generally designated as 3|. The bed 3|
that when the two clamping members or anvils
includes a lower body 32 which is formed ad
37 and 39 are in released position the pin 55 will
jacent the opposite ends thereof with a pair of
bearing members 33 and .34. The bearing mem 20 automatically and positively eject the slug 4!)
from the recess 5|.
_
v
bers 33 and 34 are in axial alignment and the
The head 38 is formed integral with a sup
bearing member 33 has mounted therein for
porting member 5| which is adapted to be se
combined rotary and endwise movement a cutter
cured by fastening members 52 and 53 to a table
assembly, generallyv designated as 35. The hear
ing 34 has mounted therein for combined rotary 25 64 which is carried by the bed 32 between and '
rearwardly of the bearings 33 and 34. The sup
and endwise movement a cutter assembly, gen
porting member 16! is adapted to be accurately
erally designated as 38. The two cutter as
positioned with respect to the table 54 by means
semblies 35 and 38 are of identical construction
of a pair of dowels 65 which extend through the
and the detailed description of one of these as
semblies will apply equally as well to the other 30 base portion 88 of the supporting member BI
and engage the table 64.
The bed 8| is formed with a cylinder 81 within
An upper anvil or slug clamping member 3'! is
which a vertically movable piston 88 is slidable.
supported by a supporting head 38 in a position
The piston 68 has ?xed to the upper end thereof
wherebythe lower end portion of the anvil or
clamping member 37 will be disposed medially 35 a lower movable clamping head or anvil 69 which
is formed at its upper end with a reduced clamp
between the inner confronting ends of the as
ing member ‘H1 confronting the upper stationary
semblies 35 and 36. A lower movable anvil or
clamping member 54. The upper side of the
clamping member 39 is disposed in confronting
clamping member 15 is formed with a concave
position with respect to the upper anvil or
clamping member 31 and coacts with the anvil 40 seat 1| confronting the seat 5| and within which
the slug 48 is adapted to engage. The forward
31 in ?rmly and tightly gripping a slug or work
upper portion of the clamping member 18 is
piece 40 therebetween. The upper anvil or
formed with a rounded portion 12, the purpose for
clamping member 31 comprises an elongated body
which will be hereinafter described.
4| which is mounted in a channel 42 formed in
The body 69 of the lower clamping member is
the head 38. The body 4| is adapted to be 4-5
formed with an annularvdepending ?ange or skirt
maintained in vertically adjusted position by
‘[3 which is adapted to loosely engage about the
means of a plurality of clamping bolts or set
upper end of the cylinder 51 so as to prevent
screws 43 which are threaded through the head
any removed material from contacting with the
38 and engage the adjacent edges of the body 4|.
The upper end 44 of the body 4| is cut off at 50 piston 68. A rock lever 14 is rockably mounted
an angle and a wedge block 45 is mounted in the ' on a shaft 15 which is mounted in bearings 16
and 11 carried by the bed 3|. The lever 14 is
upper portion of the channel 42 and bears against
connected with the piston 88 by means of a link
the upper end of the body 4|.
18 which at its upper end is mounted on arwrist
The block 45 constitutes a means for vertically
assembly.
'
_
>
adjusting the body 4|, and the block 45 is ad» 55 pin ‘59 carried by the piston 88. The lower'end
of the link 18 is mounted on a pin 8Bgwhich is
justed laterally with respect to the body 4| by
carried bythe lever 14 upwardly from the shaft
means of a pair of opposed set screws 48 and 4'!
15. The lever 14 is formed with an upwardly
which are threaded thrdugh ‘the head 38. The
opening slot 8| within which the lower end of
body 4| is provided with pairs of elongated open~
lugs 48 and bolts 49 are extended through the 60 the link loosely engages and the piston 68 is
formed with a' slot 82 within which the upper
head 38 and the openings 48 to provide a means
portion of the link loosely engages. The piston
for limiting the vertical adjustment of the clamp
'68 adjacent the upper portion thereof is formed \
ing member 3'! in the head 38. The lower end of
with a lubricating passage 83 communicating
the anvil or clamping member 81 is provided with
with a passage 84 carried by the cylinder 81 and
a reduced width portion 55 which of substantially
an oil cup 85 is connected with the cylinder pas
less length than the space between the’ cutter
sage 84 by means of a pipe 88. The upperehori
assemblies 35 and 36 when these assemblies are
zontal passage 83 communicates with a vertical
shifted toward each other in their cutting opera
passage 81 formed in the piston 68, and the lever
tion.
18 is formed with a lubricating passage 88 com
The reduced lower or clamping end portion 58
municating with the passage 81. The passage
of the anvil or clamping member 31 is formed
88 extends downwardly through the link or lever
with a concave recess or seat 5| within which the
slug 48 is adapted to seat. The slug 48 is adapted
18 and communicates with an annular lubricat
ing channel 89 formed in the pin 8|},v The shaft
to be automatically ejected from the recess 5|
by means of a slug ejecting member, generally . 15 has formed integral with the opposite ends
5
2,411,110
thereof a pair of eccentrically disposed stub
shafts 99 and 9I ‘which are journalled in the bear
ings ‘I1 and 16, respectively.
6
of is ‘formed with an enlargedbore or chamber
I34 and a ring I35 is'mounted in this enlarged
bore and is adapted to provide a ‘means for limit
The stub shaft 9I at its outer end is formed
ing the outward flow of lubricant which is dis
with a splined portion 92 on which a‘ shaft ad
charged into the interior of the sleeve III9. The
justing arm 93 is ?xedly mounted. Swinging ad
ring I35 is tightly pressed into the bore I34 and
justment of the arm 93 will raise or lower the
forms a reduced passage between the inner circle
lever ‘I4 so as to thereby provide for the desired
of the ring I35 and the periphery of the shaft
vertical reciprocation of the piston 69 in order
I29. The sleeve II9 is formed with a longitudi
to’ provide for the desired clamping pressure be 10 nal keyway I36 in the periphery thereof within
ing‘applied by the clamping member ‘I9 on the
which a key I3‘! is adapted to engage. The key
slug 49. The arm 93 is held in adjusted posi
I 31 is mounted in a forwardly opening slot I38
tion by means of a pair of opposed threaded ad
formed in the bearing 34 and the key I3‘I is re
justing members 94 and 95 which are threaded
movably held in the keyway I36 by means of set
through bosses 96 and 91 carried by the bed 32.
15 screws I39 which are threaded downwardly
The lever 14 is provided with an offset exten
through the bearing 34 and engage the upper
sion 98 on which a roller 99 is mounted. The
side of the key I31. The key I3'I holds the sleeve
‘ roller 99 engages in a cam track I99 which is
I I9 against rotary movement but permits endwise
formed in a cam member I M mounted on a ro
sliding movement of the sleeve II9 under the
tatable cam shaft I92. The cam shaft I92 20 action of a sleeve operating lever I49.
(shown vmore clearly in Figure 6) is rotatably
The lever I 49 has one end thereof pivotally
mounted in ‘bearings I93 and I94. The cam shaft
mounted on a threaded pivot member I M which
I92 has‘?xed to one end thereof a sprocket I95
extends through the lever I49‘ and is threaded
about which a driving chain I96 is trained. The
into the sleeve II9. The lever I49 is pivotally
chain I96 engages a driving sprocket I9‘I mount
mounted on a pivot member I42 carried by the
ed on a drive shaft I98. The drive shaft I98
inner end of a link I43. The link I43 is mount
is connected with a gear reducing mechanism I99
ed on an eccentrically disposed pivot member I44
of conventional construction which is operated
WhiCil is ?xed to the rear side of the bearing 34
from a shaft II9. The shaft I I9 has a pulley
so that adjustment of the pivot member I44 will
I II mounted on one end thereof and‘ the pulley 30 shift the center of the pivot I42 inwardly or out
I II has a belt or ?exible drive member II2
wardly to provide for the desired movement of
trained thereabout. The belt H2 is also trained
the lever I49. 'The opposite or rear end of the
about a driving pulley II3 mounted on a motor
lever I49 has rotata-bly mounted thereon a roller
shaft H4 driven by a motor H5.
I45 which engages in a cam track I 46 formed
The base 69 of the clamping member 39 is se
in a cam member Ill. The cam member I4‘! is
cured to the piston 68 by means of fastening
?xedly mounted on the cam shaft I92 which is
members II 6, and preferably positioning pins I I‘!
driven by means of the motor II5 through the
which are seated in openings I I8 engage through
reduction gearing I99.
the base 69 so that the clamping member 39 will
The chuck I33 is formed of a cylindrical body
be properly positioned with respect to the clamp
ing member 31.
40 I48 which is formed with a plurality of circum~
ferentially arranged triangular slots I49.
The
Referring now to Figure 7, the spindle assem
slots I49 are inclined inwardly and downwardly
bly 36 which is identical with the spindle assem
from the outer end of the body I48 and a plu
bly 35 comprises a cylindrical sleeve II 9 which
rality of cutter members I59 are mounted in
is slidable endwise in the bearing 34. The sleeve
the cutouts I49. Segmental clamping members
II9 has rotatable interiorly thereof a spindle or
I5I which are formed at their inner portions
shaft I29 which is rotatable in anti-‘friction bear
with longitudinal cutouts I52 engage in the
ings I2I and I22 carried by the sleeve I I9. The
segmental openings I 49 and are tightly secured
outer end portion of the spindle I29 has an an
therein by means of clamping screws I53.
nular nut I23 threaded thereon which is adapted 50 Tightening of the screws or bolts I53 which are
to abut against the outer side of the bearing I22.
threaded‘into‘the body I48 as‘ shown in Figure
A grooved pulley I24 is ?xedly mounted on the
20 will tightly clamp the cutter I59 in the seat
outer end of the shaft I29 being removably se
orcut out I49. Each cutter or tool I 59 is formed
cured by means of a nut I25 which is threaded
with a bevelled inner end portion I54 against
on the shaft I 29. The sleeve II9 at its outer
which a cutter adjusting screw I55 is adapted
end is formed with threads I26 on which a pair
to engage. The screw I55 is mounted on an
of lock nuts I2‘! are threaded. The nuts I21 pro
angle to the longitudinal axis of the body ‘I48 so
vide means for limiting the inward sliding move
that inward adjustment of the screw I55 will
ment of‘the sleeve II9 during the cutting opera
force the cutter I59 outwardly of the chuck. In
tion.
00 the present instance, there are three of these
' The shaft I29 adjacent the inner end portion
cutters but it will of course be understood that
thereof is formed with an annular ?ange I29
the number of these cutters may be varied as
outwardly of the anti-friction bearings I2l and
may be desired.
‘
a‘sealing washer I29 is interposed between the
‘ The periphery of the body I48 is formed with
?ange I28 and the outermost of the bearings I2I. 1A circumferentially spaced apart recesses or
The shaft I29 at its inner end portion is formed
sockets I56 for receiving a spanner wrench and
with areduced threaded stud I39 and a pilot
if desired. the front‘ face of the chuck body I48
' stud I3I which is disposed between the threaded
may be provided with similar spanner Wrench
stud and the ?ange I28. An annular ring-shaped
recesses I53. The pulley 124 is preferably a
boss I32 is formed on the inner side of the ?ange
multiple grooved pulley and a vplurality of driv
I28 and a tool chuck or head I33 is adapted at
ing belts I51 are trained about the pulley I24
its outer end to bear against the ring-shaped
and about‘ a driving pulley I59- mounted on a
boss I32. The chuck I33 is threaded onto the
motor shaft I59. The motor shaft I59 is driven
stud I39 and telescopes the pilot stud I3I. The
by a motor I69 which is secured in vertically
sleeve II9 adjacent the outer end portionthere
adjusted position to the front wall I6I of the
2,111 1,110
The motor I66 has connected therewith a switch
I64 and the motor I65 for the spindle'assembly
35 has connected therewith a switch I66. The
I93 is formed with an upwardly opening slug
guiding channel I98 aligning with the seat I91
and a slug guiding chute I99 is disposed in align
ment with the guide chute or passage I98. The
chute I99 is adapted to be correlated with a suit
able hopper structure (not shown) for feeding
the slugs downwardly to the block I93. The
cam-shaft motor II5 has connected therewith
a‘ switch I61 and preferably the switches I64, I66
block I93 is formed with a slug guiding channel
or hopper 266 forwardly of the‘ connecting ‘mem
base-or. supporting structure 86 by means of
motor adjusting bolts I62. 7 The adjusting bolts
I 62 extend through, vertically elongated open
ings 1.63, which are formed in the front wall I6I.
and -I-61 are so connected together that the 10 ber I95, the hopper or channel being formed by
a block 26I disposed in a cutout 262 formed in
the block I98 and provided with wings 263 which
the power source cannot be connected with the
are secured by fastening members 264 "to the
power source until both switches I 64 and I66
forward face of the block I93. The slug sup
have been moved to a circuit closing position.
porting block or connecting member I95 is
In this manner the cam shaft I62 with the opera
formed with a depending lug or extension 265
ating means connected therewith cannot be op
which is adapted to extend into the recess I84
erated before the spindle assemblies 35 and 36
switch I61 for connecting the motor II5 with
between the arms of the spring I86. The spring
I86 adjacent the rear ends of the arms ‘I89
slidable in opposed guides I69 which are secured 20 thereof is formed with an enlarged cutout 266
which is of a width slightly greater than the
to ‘the table 64 by fastening members I16. The
width of the channel I84 so that the slugs ‘46
carriage I68 is reciprocated toward or away from
dropping downwardly through the passage or
the spindle assemblies 35 and 3.6 by means of a
hopper 266 may drop downwardly by gravity into
rockable lever I1I. Thevlever I1I is pivotally
mounted as at I12 on a rearwardly projecting
the passage I86. At each forward movement of
the carriage I68, a slug 461s kicked off from the
boss I13 carried by the bed 3| on the rear side
seat I91 by means of a kick-off block 261 which
thereof. The lever I1I has pivotally mounted
are rotating.
.
~
A horizontally reciprocable carriage I68 is
is secured to a ‘U -shaped spring 268. The spring
in the upper end thereof a block I14 and the
carriage I68 has a block I15 rockably mounted
268 is formed with a right angular base portion
in a slot I16. The block I15 is mounted on a pin 30 269 integralwith the rear leg 2H] thereof and
or shaft I11 extending through the slot I16 and
the base 269 is secured between the heads of the
fastening members I 88 and the upper side of
mounted in the carriage I68. The two blocks
the rear portion I81 of the spring I86. ‘The
I14 and I15 are adjustably connected together
by a threaded adjusting Inember I18 which in
cludes oppositely threaded portions I19 and I86.
kick-off block 291 on one end thereof is formed
with a horizontally disposed wing 2“ which is
The carriage I68 at its forward end is formed
adapted to confront the adjacent end of the
with a forwardly opening slot I8I which is of
sufficient width to permit the arms I82 and £83
formed on opposite sides of the slot I8I to en
gage on opposite sides of the slug and clamping
members 56 and 16 when the carriage I68 is in
' trough or chute I98 so that when the kick-off
member 261 forces a slug from‘ the seat ‘I91 into
the hopper 2-66, the next succeeding slug in the
trough I98 will be preventedfrom moving onto
the seat I91 until the carriage I68 has moved
rearwardly to an inoperative position.
The carriage I68 is reciprocatedback and forth
its forward'position. Thev carriage I68 is formed
in the upper side thereof with an elongated pas
sage I84 which at the forward portion of the
carriage I66 ‘rises upwardly as at I85. A bifur
cated spring I86 which is provided with a base
by means of a cam 2 I2 which is formed integral
with the cam I6I at one end of the latter. The
1ever_I1I has rotatab-ly secured thereto a roller
2I3 which is adapted to ride on the periphery of
plate I81 is secured by fastening members I68
to the upper side of the carriage I68. The arms
I89 of the spring I86 are disposed in overlapping
position with respect to the slot I84 and are
adapted to engage the opposite ends of a slug
46 which movably engages within the recess I84.
The forward ends of the arms I89 of the spring
I86 are provided with upwardly offset slug re
taining portions I96 for holding the slug 46
against movement lengthwise of the carriage 568.
the cam 2I2.
of thecam and is also formed with a second cam
portion 2 I 5 which is offset inwardly from the cam
portion 2 I 6. The trailing end of the cam portion
2I5 merges with an outwardly extending cam
portion 2I6, the purpose for which will be here- ‘
65 inafter described. The cam 2I2 also includes a
The arm I82 of the carriage I68 is formed with
an upwardly opening slug seat I9I, and the arm
I83 is formed with an upwardly opening slug
seat I92 aligning axially with the recess I9I. 60
The two
recesses
carriage
member
recesses I9I and I92 comprise delivery
for ejecting the formed slug from the
I68 when the lower anvil or clamping
39 is moved upwardly to a clamping or
The cam 2 I2 is formed with a cam
portion 2M offset inwardlyfrom the periphery
dwell portion 2I1 Which is equal to substantially
one-half of the circumference of this cam.
The
roller 213 is adapted initially to drop downwardly
to the cam portion 2% and the lever "I is pulled
forwardly under the action of a spring 2 I8 which
is connected at one end to an ear 2 I9 carried by
the lever I1'I. The spring 2| 8 at the opposite
end thereof is connected to an adjusting bolt 226
so‘ that the roller 2E3 will be yieldably held in
gripping position.
i
65 contact with the peripheral-surface of the cam
In order to provide a means whereby the blank
2I2. The spring 2I8 is of suf?cient strength to
slugs may be fed to the carriage I68 at each re
move the carriage I68 forwardly when the roller
ciprocation thereof, I have provided a block I98
2 I3 drops into the cam portions 2M and 2I5. At
which is secured by fastening members I96 to
the time the roller 2I 3 engages the ?rst cam por
the upper sides of the guide members I69 adja
tion 2I9,'the carriage I68 is moved forwardly to‘ cent the forward portions thereof. The block
the position shown in Figure 25 where ‘the slug
I93 is formed centrally thereof with a trans
receiving seats I9I' and I92 are disposed beneath
versely extending connecting member I95 which
the formed slug.
.
is provided in the upper side I96 thereof with a
At this time the lower clamping member 39 is
concave slugseat I91. One side of the block 75 lowered under the action of the cam I-6I and the‘
2,411,110
10
formed-slug.“ drops‘into the seats I 9| and I92
‘being assisted in dropping into the seats NH and
I92 by means of the spring pressed ejecting mem
ber 52. Continued rotation of the cam 2I2 will
cause ‘the roller 2I3 to drop onto the cam surface
the upper end of a suction pipe 228 which is con
nected with the suction side of the pump 229.
In the use and operation of this machine, the
motors I69 and I65 are initially started by clos
ing of the switches I64 and I66 in succession and
2I5 thereby shifting the carriage I68 forwardly
then the switch I61 may be closed to start the
to the position shown in Figure 26. At this time,
motor H5. Rotation of the cam shaft I 92 by the
the slug 49 which is gripped by the gripping ?n
chain drive I96 will rotate the several cams caus
gers I99 of the spring arms I89 will be disposed
ing reciprocation by means of the cams I41 of the
in confronting position to the clamping faces 5| 10 opposed sleeves H9. Prior to the inward movee
and ‘II and the formed slug will be disposed for
jment of the sleeves I I9 with the cutter heads I33,
wardly of these clamping faces. The lower mov
the carriage I68 will be shifted forwardly by
able clamping member 39 will then be raised to a
means of the cam 2I2. The cam portion 2I4 on
clamping position by means of the cam I9I which
the cam 2I2 will cause the carriage I68 to’ hesi-‘
will rock the lever 98, raising the piston 68 to a 15 tate or stop with the slug receiving recesses‘ I9I
clamping position. When the lower clamping
and I92 positioned in vertical alignment with the
member 39 rises to a clamping position, the
recesses 5I and ‘H formed in the gripping mem
formed slug 49 resting in the seats I9I and I92
bers 37 and 39.
will be lifted off from these seats and rolled for
The formed slug will drop partly by gravity
wardly by ‘the curved ejecting portion ‘I2 formed 20 and partly under the action of the ejecting .pin
on the forward portion of the lower clamping
‘55 into the recesses I9I and I92, whereupon con
member ‘I9.
'
' The upward movement of the lower assembly
39 will lift the blank slug 49 from the recess I84
tinued rotation of the cam 2I2 will by means of
the cam portion 2I5 cause the carriage I68 to
move forwardly an additional distance bringing
in the forward portion of the carriage I68, also 25 the blank slug 49 into vertical alignment with
raising the arms I 89 of the spring I36 to the
position shown in Figure 26. Further rotation of
the cam 2I2 through the cam portion 2I6 will
cause the roller 2 I3 to effect rearward movement
of the carriage I68 thereby pulling the spring
arms I89 from the now gripped blank slug 49.
At the time the carriage I68 is at its foremost
the seats BI and ‘II. At this time, the cam I9I
will effect upward movement of the_ movable
clamping member 39 which will move‘ between
the arms I82 and I83 of the carriage :and will
raise the blank slug to the position shown in
Figure 26. Coincident or simultaneously with
the gripping of the blank slug by the upward
movement of the lower clamping member 39, the
previously formed or shaped slug 49 which is dis
the hopper 299 into the rear portion of the recess 35 posed in the recesses I9I and I92 will be lifted
‘I84. Rearward movement of the carriage I68
outwardly of these recesses by the ejecting pore
will position the slug gripping ?ngers I99 over
tion 72 formed on the forward upper portion of
the slug which will be/held against rearward
the gripping element ‘I9. The formed slug will
movement by the lug or stop member 295 as the
then roll forwardly off of the end of the carriage
carriage‘ I68 moves rearwardly. Upon forward‘ 40 and will drop into a hopper229 and move down
movement of the carriage I68 to the combined
wardly in a, trough or guide member 239 for
discharge and delivery'position, which is the po
discharge into a suitable receiver (not shown)
sition shown in Figure 16, a second slug will be
which may be positioned adjacentthe machine.
pushed off of the seat I91 by the push member or
In order to provide a means whereby the slug
kick-off bar 291. The second or uppermost of 45 will be disposed in the same position at all times
the slugs 49 in the hopper 299 will provide suffi
with respect to the two clamping members 31
cient weight so that the lowermost slug, which at
and 39, I have provided a spring 23I which is
this time is riding on the. upper surfaces of the
mounted in the channel I84 of the carriage ‘and
spring arms I89, will be forced downwardly into
bears against one end of the slug when the latter
the slug receiving channel I84 when the carriage 50 is in a gripping position beneath the gripping
I68 is in its foremost position.
portions I99 of the spring ?ngers I89.
.
‘
In order to provide a, means whereby a cutting
After the lower gripping member 39 has moved
?uid may be discharged onto the cutters I 59, dur
upwardly to a clamping or gripping position, the
ing the operation of the machine, I have pro-,
cam 2| 2 by means of the cam portion 2I6 will
position, which is the position shown in Figure
16, a blank slug 49 will drop downwardly from
~ vided a centrally disposed bore 2 I4a which is pro- '
vided in the spindle or shaft I29 and a commu
nicating bore 2I5a is provided in the chuck I33.
. The outer end of the spindle or shaft has swivelly
mounted thereon a connector 2H5ah which is con
nected with a ?exible hose ZI‘Ia. The hose 2I'I8L
is connected at its lower end to an L 2 I8a mount
move the carriage rearwardly at which time a -
slug which has been pushed off of the seat I91
will be held against rearward movement so that -
the gripping ?ngers I99 may grip the slug drop
ping into the channel I84 at the rearmost posi-‘
tion of the carriage I68. With the slug ?rmly
gripped between the two clamping or ‘gripping
members 31‘ or 39 rotation of the cam shaft I92
will cause the opposed sleeves I I9‘to moveinward
ly toward each other thereby moving the cutter
ed’on the outer end. of a ?uid conducting pipe
ZIS‘”. The pipe 2I9a extends into the base 39 and
is connected with a pump 226a mounted interiorly
heads I33 to a position where the cutting mem
of the base 39. The pump 229a has a pulley 22I 65 bers I59 will shape the opposite ends 1 of the
connected with the shaft 222 thereof and a belt
slug. In the present instance, the slug I49 will
223 is trained over the pulley 22 I and over a pulley
have one end thereof shaped as at 232 and‘the
224.mounted on the motor shaft H4. The ?uid
opposite end shaped as at 233 as shown in Fig
which is ejected ‘from the bore 2I5a in the head 70 ure 23. The completed or ‘?nished slug forms a
or chuck I33 drops downwardly onto the table 64
projectile for insertion in a cartridge shell.
and then‘ drops into a well 225 formed in the
It will be understood that the spindle or shaft
upper'portion of the base’ 39. The well 225 is
provided with a sump 226 within which a, screen
221 ‘is mounted.‘ The screen ‘221 is mounted on
I20 is continuously rotating so that the slug 49
will be ‘progressively cut and shaped during the
inward movement of the opposed cutting heads
2,411,116
,.
'
I2
'iil
vI 33. After the slug has been shapedv which, opera‘
tion occurs at the innermost positions‘ of the
cutters I50 and the cutter heads I33, the cam
members I41 will effect outward movement of
the sleeves H9 and at this time the carriage
hopper meansv and engaging’ iii-"said 'channelgbe
tween the arms vof saidspring, a work piece hold
ing seat rearwardly of said hopper, and delivery
means ?xed relative to said carriage‘ engageable
I68 is ‘moved forwardly to a position where the
with the work piece on said seat for delivering
the work piece into said hopper on each forward
recesses I9I and I92 are beneath the formed
movement of said carriage.
-
‘
'
4. In a work piece shaping machine, a reciprocal
delivery carriage, said carriage comprising an
or‘clamping members 3‘! and 39. The cam IUI
will then effect downward movement of the lower 10 elongated body formed with a channel in" the
upper side thereof, said body‘ having a bifurcated‘
clamping or gripping member 39 and the ?nished
forward. end, a bifurcated spring ?xed to the’
slug will drop into the slug receiving recesses I9!
upperside of sad body with portions of the arms
and, I92. .The further cycle of operation is a
or said spring overlying the opposite.‘ longi
repetition of that hereinbefore described.
What I claim is:
15 tudinal edges of said channel, stationary hopper
means overlying said carriage, said spring vbeing
1., In a metal working machine, a pair of con
formed‘ with confronting cutouts in the rear por
fronting rotary cutter members, means recipro
tions of the arms thereof, ‘a depending lug‘ car'
cating said members during rotation'thereof, a
slug which is still gripped between the gripping
pair of opposed clamping members between the
confronting ends of said members, means ?xedly 20 channel between the arms of said spring, a work
piece holding seat rearwardly of said hopper, de
supporting one of said clamping members, means
livery means ?xed relative to said carriageyem
reciprocating the other cf said clamping mem
ga'geable with the work piece on said seat for
bers, a reciprocal carriage, means reciprocating
delivering the work piece into said- hopper on
said carriage, said carriage having a bifurcated
forward delivery end engageable on opposite sides 25 each forward movement of said carriage, means
guiding work pieces to said seat, and means car
of said clamping members when said carriage is
ried by said delivery means for cutting off said
in a forward Work piece delivery position, and
means yieldably holding a work piece on the
"guiding means when said delivery means is in
upper side of said bifurcated end, said carriage
delivery position.
.
,
5. In a metal working machine, a work piece
being so positioned with respect to said clamping 30
clamping means comprising :an upper stationary
members that movement of said other clamping
clamping member, a vlower reciprocal clamping
member toward clamping position will lift the
workpiece from said carriage.‘
'2, In a metalworking machine, a pair of con
fronting rotary cutter members, means recipro
cating said members during rotation thereof, a
pair of opposed clamping members between the
confronting ends of said members, means ?xedly
‘supporting one of said clamping members, means
reciprocating the other of said clamping mem
bers, a reciprocal carriage, “means reciprocating
said carriage, said-carriage having a bifurcated
forward delivery‘ end engageable on' opposite
sides of said' clamping members when said car
riage isin a ‘forward work piece delivery posi~
tion, means yieldably holding a work piece on the
upper side of said bifurcated end, said carriage
being so positioned with respect to said clamping
members that movement of said‘other clamping
member toward clamping position will lift the 50
work piece from said carriage, said carriage‘hav
ing'opposed work piece seats at the forward end
‘member, said lower ‘member comprising a verti
cally sl'idable body, a clamping head secured to
the upper end of said body, a rock shaft below
said body, a rock lever on said shaft, means for
rocking said lever, link means connecting said
lever with said: body, eccentrically disposed stub
shafts carried by the ends of said ?rst shaft, bear
ings ‘for said stub shafts, an adjusting arm ?xed
to one of said stub. shafts, and means holding
said'arm in ‘adjusted position.
1
'6; A ‘metal shaping machine comprising op~
posed rotary cutter members, a stationary work
clamping member, va complementary vertically
movable clamping member, a work delivery car
riage'mov'able "toward or ‘away ‘from said clamp
ing members, and correlated timed means for
movingsaid carriage to delivery position ‘prior to
the movement of said movable clamping mem_
her to clamping position, said carriage being
formed with a work piece seat adapted to be dis
posed'beneath
the‘ work piece when the carriage
thereof, and. cam operated means for initially
is
in
its
rearmost
position to thereby receive the
shifting said carriage forwardly to dispose said '
formed work piece when said movable clamping
seats beneath the clamped work piece, the ‘work 55 member
moves downwardly to released position,
piece dropping onto said seats upon movement
forward
movement of’ said carriage on thede
of said other clamping member to released po
livery cycle thereof disposing the ‘formed work
sition, said cam operated means subsequently
piece in a position whereby upward movement of
shifting said carriage forwardly'an additional dis
said movable clamping member to clamping en
tance to dispose a second work piece between
gagement with a new work piece will 'lift the
saidv clamping members, movement of said ‘other
formed work piece from said seat and discharge
clamping member to clamping position ‘also un~
the formed work piece from said carriage,
seating the work piece from said seats.
7'7. A metal working machine comprising op
3. In a work piece shaping machine, a reciprocal
cutter members, a stationary'work
delivery carriage, said carriage comprising an 65 posedrotary
clamping member, a complementary movable
elongated body formed with a channel in the
clamping ‘member, a reciprocal work delivery
upper side thereof, said body havinga bifurcated
carriage movable toward or away from said
forward end, a bifurcated spring ?xed to the
clamping members, means for reciprocating said
upper side of said body with portions of the arms 70 carriage, and means ‘correlated with said latter
of said spring overlying the opposite longitudinal
meansfor ‘moving 'said'movable clamping mem:
edges of said channel, stationary hopper means
ber toward or ‘away from said stationary clamp
overlying said carriage, said springbeing formed
ing ‘member, said carriage being formed with a
with confronting cutouts in the rear portions of
work piece seat adapted to be disposedbeneath
the arms thereof, a depending lug carried by‘said 75 the work, piece when the carriage is in its rear
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