US2272850A - Assembling machine - Google Patents

Description

Feb. 10, 1942. L. EfPooLE 2, 72,

ASSEMBLING MACHINE Filed July 28. 1958' 10 Sheets-Sheet l I v I i v I 4 I g) fivENTQR,

fly ATTORNEYS Feb. 10, 1942. L. E. POOLE ASSEMBLING MACHINE Filed Jul 28, 1933 10 sheets-sheet s f fiNVENTOR BY W ATTORN EY/ Feb. 10, 1942; L. E. POOLE 2,272,850

ASSEMBLING MACHINE Filed July 28, 1938 10 Sheets-Sheet 4 Feb. 10, 1942.

L. E. POOLE ASSEMBLING MACHINE Filed July 2 10 Sheets-Sheet 5 i B Z %ENTOR TTORNEYS Feb. 10, 1942.

L. E. POOLE ASSEMBLING MACHINE 10 Sheets-Sheet 6 Filed July 28, 1938 i g, dglvsu'roR M M "?!4 9 ATTORNEYS Feb. 10, 1942.. 1.. E. POOLE v ASSEMBLING MACHINE Filed July 28, 1938 10 Sheets-Sheet '7 INVENTOR, 2 52W Y fig ATTORNEY Feb. 10, 1942. L. E. POOLE 2,272,850

ASSEMBLING MACHINE Filed July 28, 1958 10 Sheets-Sheet 8 INVENTOR ofiwaBzY M Manna."

ATTORNEYS Feb. 10, 194-2. POOLE 2,272,850

ASSEMBLING MACHINE Filed July 28, 1938 10 Sheets-Shee 9 fig, 15

:BY INVEETOR Patented Feb. 10, 1942 ASSEMBLING MACHINE Lora. E. Poole, Anderson, Ind., assignor to General Motors Corporation, Detroit, Mich., a corporation of Delaware Application July 28, 1938, Serial No. 221,723

14 Claims.

This invention relates to assembling apparatus by which a number of small articles are located upon an aggregating support in an orderly fashion so that a group of such articles may be transported in assembled relation during a certain manufacturing operation.

As an example of a manufacturing operation in which the present invention is adapted to be used, mention is made of Bakelite-tipped brush holder studs for dynamo electric machines. The stud is a short length of steel rod around one end of which is molded a ring of Bakelite which is integral with the stud, the Bakelite ring being of the proper diameter to be fitted with a press fit within a recess or hole provided in the frame of a dynamo electric machine. The Bakelite ring anchors the stud in position and serves to insulate it from the frame of the machine. It has been the practice to assemble by hand a plurality of studs in an aggregating support which holds the studs in a definite orderly spaced relation. The aggregating support with studs assembled therewith is placed in the mold of a Bakelite press so that by one press operation a plurality of studs are provided simultaneously with the Bakelite insulating rings.

It is an object of the present invention to provide a machine which will automatically assemble a plurality of similar work pieces such as studs upon an aggregating support having recesses which are spaced apart in a predetermined manner, for example, in such manner as to conform to the spacing of the cavities of the Bakelite mold within which the aggregating support and assembled pieces are to be placed in a subsequent operation.

Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawings wherein a preferred embodiment of the present invention is clearly shown.

In the drawings:

Fig. 1 is a perspective View of a machine embodying the present invention.

Fig. 2 is a perspective view of the assembly of the studs and plates which are assembled by the machine.

Figs. 3 and 4 are sectional views showing the open and closed position of a Bakelite mold in which the assembly shown in Fig. 2 is used.

Fig. 5 is a perspective view of a stud having molded thereon a ring of insulation as a result of the process carried out by the molds shown in Figs. 3 and 4.

Fig.6 is aperspective-view-of the machine'looking approximatelyin the direction of the arrow .6 of'Fig. 1.

Fig. 7 is a fragmentary view partly in section taken on the line l'l of Fig. 12A.

Fig. 8 is a sectional view taken on the line 88 I of Fig. 7.

Figs. 9 and 9A taken together, constitute a side elevation of the machine viewed in the direction of arrow 9 of Fig. 1.

Figs. 10 and 10A taken together, constitute a front elevation of the machine looking in the direction of the arrow ll] of Fig. 6. That part of Fig. 10 which is in section is a sectional view taken on the line Ill-l0 of Fig. 12.

Fig. 103 is a sectional view on the line lElB 10B of Fig. 10.

Figs. 11 and 11A taken together, constitute a side elevation of the machine looking in the direction of the arrow 1 I of Fig. 6.

Figs. 12 and 12A taken together, constitute a plan view of the machine.

Fig. 13 is a plan view of the plates which are assembled with studs by means of the present machine.

Fig. 14 is a sectional view taken on the line l il4 of Fig. 10 and also the line i l-l4 of Fig. 12A.

Fig. 15 is a diagram showing the relation of the cams which control the location of the workholder carriage with respect to the device which forces a stud in the aligned holes provided by the stud-supporting plates.

Figs. 16 and 1'7 taken together, constitute a development of the outer cam shown in Fig. 15.

Fig. 18 is a sectional view on the line l8-I8 of Fig. 10 and also the line I8-l8 of Fig. 12.

Fig. 19 is a sectional view on the line l9 l9 of Fig. 18 and also line l9--l9 of Figs. 12 and 12A.

Fig. 20 is a sectional view on the line 20-29 of Fig. 12.

Fig. 21 is a sectional view on the line 2l-2l of Figs. 12, 12A and 20.

Referring to Figs. 1 to 5, I will first explain one of the uses for which the machine embodying the present invention is adapted. The machine shown in'Fig. 1 assembles similar work pieces, such as studs S, with an aggregating support, such as provided by spaced plates P1 and P2, as shown in Fig. 2. The spacing of the studs S conforms to the spacing of cavities C1 and C2 in Bakelite press molds M and N shown in Fig. 3. The assembly of plates P1 and P2 and studs S is placed in mold N and a preform L of uncured Bakelite is placed upon the assembly. Then the molds M and N, which are heated, are brought together as shown in Fig. 4 to cause rings of Bakelite to be molded around the studs S. The closing of these molds causes plate P2 to engage P1. Both plates serve as a dam to prevent the plastic Bakelite from creeping down into the lower cavities 01. After molding as shown in Fig. 4, the assembly is removed from mold M, and the studs as shown in Fig. 5 are removed from the plates Pr and P2.

Referring now to Figs. 1, 6, 12A and 14, the machine comprises a main base supported upon a sub-base 2| which in turn is supported upon a table top 22 having legs (not shown) which support the machine a suitable distance above the floor. As shown in Fig. 14, the base 20 has a machine dovetail guide 23 and a machined surface 24 which supports and guides a carriage or slide 25 which moves laterally, that is to the right or toward the left of the operator standing in front of the machine as viewed in Fig. 6. Carriage 25 provides a machined dovetail guide 26 for a carriage or slide 21 which is movable toward or away from the operator standing in front of the machine as viewed in Fig. 6. Movement of the carriage 2'! is at right angles to the movement of the carriage 25. Carriage 2'! supports a turn table 28, pivoted on a stud 29, fixed at to the carriage 21, and carriage 21 has a plane surface 3! upon which the turntable 28 rests.

Turntable 28 is located upon carriage 21 in either one of the four positions by means of a plunger 32 which engages a hardened, tapered bushing 28a in table 28 as shown in Figs. 7 and 8. I

Plunger 32 is guided for vertical movement by a bracket 33 attached to carriage 21. A pin 32a extends from plunger 32 into a slot 34a in a lever 34 which is pivoted upon a screw-stud 35 attached to carriage 21. A spring 36 is coiled around the stud 35 and has one of its ends engaging a pin 31 attached to carriage 21 and the other engaging a pin 38 attached to the lever 34. The spring 36 urges the lever 34 upwardly to force the plunger 32 into the tapered seat pro- U 1 vided by the bushing 2811. Before the table 28 can be turned, the operator is required to push the lever 34 downwardly.

The turntable 28 supports four similar workholders 4| each comprising a base 42 provided with a plurality of grooves 43 adapted to receive studs S. The base 42 is provided with a shouldered recess 44 for receiving a stud plate P1. Each base 42 has a pair of spaced ears 45 for supporting a rod 46 upon which is pivoted a cover plate 4'! having a shouldered recess 48 for receiving a second stud plate P2. Plates P1 and P2 are punched out from sheets of insulating fiber. As shown in Figs. 2 and 12A, there are 22 studs S, which are assembled with each pair of plates P1 and P2. Plates P1 and P2 comprise an aggregating support for the Work pieces, the studs S. The studs S are arranged in five rows and in staggered relation, there being four studs in each of the first, third and fifth rows, and five studs in each of the second and fourth rows. Consequently the base 42 will have 5 grooves 43, so located as to position the studs in the manner shown in Fig. 12A. The supportin plates P1 and P2 are provided with similarly arranged holes in alignment with the grooves of the base 42, the holes in the plates P1 and P2 being such that the studs will have a press fit with the plates. The cover 4'! is also provided with grooves, of such length or depth as to provide clearance for the studs S.

The base 20 supports pedestals 50 and 5|, as shown in Figs. 12A and 14, which are tied together by a bracket 52, providing a vertical groove 53 (Fig. 12A) for a vertically reciprocable slide 54 carrying a plunger 55 (Fig. 14), the lower end of which moves through a passage 56, which. as shown in Figs. 10B and 14 is provided between a stationary plate 5'! and a movable plate 58 hingedly connected with plate 57 by the hinge pin 59. Plate 58 is yieldingly urged toward the plate 51 by a spring 60 confined between plate 58 and the head of screw 6| threaded into the plate 51. Plate 51 is attached by screws 62 to an extension 63 projecting out from the bracket The passage 56 which is provided by parts 51 and 58 constitutes the work piece receiving means since it receives a stud S. Plunger 55 constitutes the means for moving the work piece from the receiving means into an aligned recess in the aggregating support provided by plates P1 and P2.

As shown in Fig. 10B, the passage 56 within which the plunger 55 operates, is connected with a similar recess 16, vertically offset therefrom, a passage H of such width as to receive a hori- -zontal reciprocating ram 12 provided by a bar 1-3 which is supported by ways '14 and 15 integral with the plate 51 which is carried by the bracket extension 63. This construction is also shown in Fig. 9. As shown in Fig. 10, the studs S descend by gravity to a chute or magazine into which the studs are fed endwise by a hopper feed of conventional design which is not shown in the drawings since it forms no part of the present invention. The chute or magazine 80 is supported by the bracket 52 in such manner that the studs S will gravitate into the recess 13 and will rest upon a ledge 81 provided by the plate 51. The ram 12 operates to force a stud S laterally or horizontally from the recess 16 to the passage 56. Ram l2 constitutes means for moving a work piece from the magazine or chute 80 into .the work piece receiving means provided by thepassage 56. Recess T5 is slightly larger in diameter than the stud so that the stud will freely drop into it. The passage 56 is slightly smaller in diameter than the stud S so that it will be gripped between the plates 5'! and 58 and held there frictionally due to the pressure exerted by the spring 60. As will be apparent in Fig. 14 the plunger 55 forces the stud S into the passage 56 and through the aligned holes in the aggregating support plates P2 and P1 and into the aligned recesses 43 provided by the work holder base 42.

The means for moving the slides or carriages 25 and 21 so as to bring the grooves 43 of that work holder 4|, which has been manually located adjacent the passage 56, successively into alignment with the passage 56 will now be described.

The upper carriage 21 carries a bracket carrying a pivoted roller 9| which cooperates with a cam 92 having five lands numbered respectively 92a, 92b, 92c, 92d and 92e. The cam 92 has a hub 93 extending laterally beyond the lands of the cam as shown in Fig. 12A. The cam is mounted on a shaft 94 and located thereon by a key 95 which is fixed by two set screws 96. Shaft 94 is journalled in bearings 9'! fixed in hubs 98 integral with the brackets 56 and 5| as shown in Fig. 12A. The roller 9| of carriage 21 is yieldingly urged against the cam 92 by a spring I00, positioned in a recess I6! provided in the dovetail guide 26 of carriage 25 and confined between a pin I02 fixed to carriage 25 and-a pin I03 fixed to carriage 21. The lands 92a, 92b, 92c, 92d and 926 of the cam 92 respectively locate the carriage 21 and work holder 42 so that the five grooves 43 are brought successively into alignment with the recess 56 and the plunger 55. In order to locate the work holder 42 so that each of the 5 recesses orgrooves 43 therein is brought successively under the plunger 55, the carriage 25 is provided with a bracket I05 carrying a pivotally mounted roller I06 which coopcrates with a cam I01 having a hub I08 fixed to the shaft 94 and having 22 lands which are marked L1 to L22 respectively, as shown in Figs. 1, 10A, 12A, 15, 16 and 17. Fig. 6 shows the machine in the normaLqat-rest position at the end of one of its cycles of operation. Hence the roller I96 bears against the land L1 of cam I01. This figure shows that the roller I06 is urged toward the various lands of the cam I01 by means of a weight I08 attached to a chain I09 passing passing around a sprocket wheel I09'a and fixed to the head of a screw I09b threaded into the carriage 25 and locked into position by nut I090. Sprocket I09a is pivoted on a shaft I09d supported by ears l09e, integral with the table top 22.

According to the illustrations of the machine in Figs. 12A, and 14, carriages 25 and 21 have been located so that the workholder 4| attached and the plunger 55 have been positioned for locating the fifth stud S therein. This will be apparent from Fig. 13, which is a diagram showing the order in which the studs ar positioned in the work holder and stud-supporting plates P1 and P2. It will be noted that the stud holder #5 is located in alignment with the plunger 55 represented by the dotdash line circle marked 55. Accordingly it will be observed that roller I06 of carriage 25 is in engagement with land L5 of cam I01, as shown in Fig. 12A; and, as shown in Fig. 14, roller 9| of carriage 21 is in engagement with the second land 9212 of cam 92 and is in the first position on that land. As shown in Fig. each land of cam 92 has as many positions with respect to the roller 9I as there are studs in each row. Referring now to Fig. 13, the first row of studs are numbered 1, 2, 3 and 4. Land 920. therefore has four positions which will maintain the carriage 21 in the proper position for the first row; Cam I01 has lands L1 to L; which shift carriage 21 in a direction parallel to the cam shaft 94, while carriage 21 remains in the same distance from shaft 94. After the first row of studs, numbers 1 to 4 inclusive, have been inserted, carriage 21 must shift a little nearer to the shaft 94 in order to locate the second row in position for alignment with plunger 55. This is provided for by land 92b of cam 92. The difierence between the radii of lands 92a and 92b equals the spacing between the first and second row. As the studs in the second row are staggered with respect to studs in the first row, there must be a corresponding shifting of the carriage 21 a distance equal to one-half the spacing between the studs in each row. Therefore, in order to locate hole #5 under plunger 55, land L5 of cam I01 is spaced longitudinally with respect to the axis of cam shaft 94, a distance equal to one-half the spacing between lands L1 to L4 inclusive. Since there are five studs to be inserted in the second row, the cam I01 will have five lands L5 to L9 inclusive and the land 9% of cam 92 will have five positions. The land 92c locates the workholder in position for the third row in which the four studs are located. Movement of the carriage 21 laterally for the third row I01; Since the third row is staggered with respect to the second row, the lateral shifting from the position required for stud #9 to that required for stud #10 is only one-half the amount of lateral shifting required between stud #10 and stud #11. Therefore the spacing, longitudinally with respect to the axis of the shaft 94, between lands L9 and L10 is only one-half the spacing between lands L10 and L11. Land 9201 of cam 92 and lands L14 to L18 of cam I01 control the position of the workholder for the assembling of studs S in the fourth row in positions 14 to 18 shown in Fig. '13. Land 92c of mm 92 and lands L19 to L22 inclusive of cam I01 control the positioning of the workholder for location of studs in the positions 19 to 22 inclusive shown in Fig. 13. It will be noted that the lateral shifting from position #4 to position #5, from position #9 to position #10, from position #13 to position #14, and from position #18 to position #19, is onehalf the lateral shifting from the other positions; hence the difference in location, longitudinally with respect to the axis of cam 94 between lands L4 and L5, between lands L9 and L10, between lands L13 and L14 and between lands L18 and L19 is one-half the difference between the relative location of the other lands of cam I91.

As shown in the Figs. 14 and 15, the cams 92 and I01 rotate clockwise to effectthe positioning of the workholder in the various positions 1 to 22. It will be seen that the movements of the workholder are intermittent; and, while the workholder is at rest after being located. in a certain position, the plunger 55 descends to insert a stud in the aggregating support provided by plates P1 and P2. After the cams have made one revolution from the at-rest position shown in Fig. 6, all of the recesses numbered 1 to 22 will be successively filled with studs. By automatic means which will be described later, the machine comes to rest. When it is started again, the shaft 94 is caused to rotate'counter-clockwise so that the reverse movement of the cams 92 and I01 takes place. In other words the workholder recesses #22 back to #1 are successively filled with studs. As will be explained later, this reversal of movement is effected automatically by a manually operated device by which the machine is set into operation again at the end of a cycle which produces a clockwise rotation of cams 92 and I01. This control mechanism is so arranged that the starting of the machine again into operation is bound to cause the cams to rotate counter-clockwise; then, after this counter-clockwise rotation of one revolution has been completed, the machine will automatically come to rest; and the starting of the machine into operation will reverse the rotation again so that the cams rotate clockwise. While the machine is at rest the operator will rotate the turntable 28 in order to bring an unfilled aggregating support into position adjacent the plunger 55.

Mechanism is provided for reciprocating the plunger 55 (shown in Fig. 10) vertically and the slide 12 (shown in Fig. 10B) horizontally in such manner that, as the plunger 55 moves up, the slide 12 moves to the right as shown in Figs. 10 and 10B and, when the plunger 55 moves down, the slide 12 moves toward the left. Plunger 55 has a threaded head 55:]. which is screwed into an extension 540, of the slide 54 and is held in desired position by set .screw 55b. The slide 54 is provided with a notch 545 Which receives a roller H0 mounted on a pin III carried by biis obtained bythe lands L10 to L1: inclusive of cam I furcated lever II2 which rocks on a stud II3 extending from the bracket 52 as shown in Fig. 9. Lever II2 carries at its left end as shown in Fig. a pin II4 which connects the lever with a bifurcated clevis II5 having a threaded shank II6 connected by a turn-buckle II1 with the screw IIB into a boss I I9 of a connecting rod end I which cooperates with a connecting rod strap I2I to provide a bearing for a crank pin I22 which is integral with crank arms I23 and I24 as shown in Figs. 1 and 9. Crank arms I23 and I24 are attached respectively to shaft I25 (shown in Fig. 18) and shaft I26 (shown in Fig. 20). As shown in Figs. 20 and 21, the shaft I26 has a direct and a reverse gear connection with a drive shaft I 28 supported in bearings I29 and I30 provided by a frame I3I. Shaft I28 carries a sprocket I32 connected by a chain I33 with another sprocket (not shown) which is driven by an electric motor through a suitable speed reducer. Shaft I28 drives gears I34 and I35. Gear I34 directly meshes with a gear I36 having its hub. fixed to an inner ball-bearing race I31 rotatably supported by balls I38 with respect to an outer bearing race I39 mounted within a suitable recess provided by the frame I3I and secured thereto by cover plate I40. The hub of gear I36 carries a bearing I4I for the shaft I26. Gear I meshes with an intermediate idle gear I42 rotatable on a stub shaft I43 and meshing with a gear I44, the hub of which is fixed to an inner bearing race I45 rotatably supported by balls I 46 within an outer ball bearing race I41 secured within a suitable recess provided by the frame I3I and fixed therein by a cover plate I48. Gear I36 carries clutch teeth I36a, and gear I44 clutch teeth I44a.. A clutch collar I50, which is splinedly connected to shaft I26, as shown in Fig. 21, is provided with clutch teeth I36?) adapted to mate with teeth I360. of gear I36 to provide a driving connection between gear I36 and shaft I26. Clutch collar I50 is provided with clutch teeth I44b mating with teeth I 44a of gear I44 to provide a driving connection between gear I44 and shaft I26. By shifting the collar I50 toward the right from its neutral position shown in Fig. 20 the gear I36 is connected with shaft I26 for effecting rotation of the shaft in a certain direction; and, when the collar I50 is shifted toward the left from its neutral position, bear I44 will be connected with the shaft I26 to. effect rotation of the latter in the opposite direction. The shifting of the collar I50 is effected by a bifurcated shifting fork I5I, each arm of which carries a stud I52 received within the groove I53 of the collar I50. The shifting arm I5I has a hub I5Ia fixed by set screw I54 to a shaft I55 supported by the side walls of the frame I3I and carrying a lever I56 having a notch I51 in its lower end for receiving a pin I58 carried by a horizontally slidable control bar I59 operated by handle I60, as shown in Fig. 6. As shown in Figs. 9 and 9A, the bar I59 slides in ways I6I, I62, I63 and I64. Ways I6I and I62 are supported by the frame I3I, and ways I63 and I64 are supported by frame I65 which, as shown in Fig. 19, carries ball bearings I66 and I61 supporting the cam shaft 94 carries a worm gear I68 meshing with a worm I69 carried by the shaft I25 journalled in ball bearings I10 and HI also carried by the frame I65. The ratio of the gearing I69 and I68 is 22 to 1 whereby the crank shaft I25 will move 22 revolutions, or one revolution of the cam shaft 94. This motion is obviously required in order that the plunger 55 which is operated by the crank shaft I25 through the crank, to connecting rod comprising parts I2I, I20, H9, H8, H1, H6, H5 lever H2 and roller IIO may make 22 reciprocations during one cycle of operation of the cams 92 and I01 carried by the cam shaft 94.

As stated before, it is a feature of the present machine to bring it to rest at the end of each cycle of movement of the cams at the end of one revolution of the cam shaft 94. To accomplish this, shaft 94 carries a disc I15 having a notch defined by the parallel sides I16 and I11 journalled by cylindrical side I18. Within this notch is located a pawl I19 mounted to a screw I carried by the disc I15. The pawl I19 has a position shown in full lines in Fig. 9 in which it bears against the notch side wall I16, and another position indicated at H91; in dot-dash lines in which it bears against the notch side wall I11. As shown in Fig. 9, the spacing between the two positions of the pawl I19 is V- shaped and is just wide enough to be occupied by a pin I8I carried by the control bar I59. When the machine is in the normal at-rest position the pin I8I will be in the neutral position shown in Fig. 9, corresponding to the neutral position of lever I56 shown at the right of this figure and corresponding to the neutral position of the clutch shifting fork I5I and clutch collar I 50 as shown in Fig. 20. When the pawl I19 rises to the left of the pin I8I, it blocks movement of the bar I59 toward the left as viewed in Fig. 9 therefore, there is only one way in which the bar can be moved, and that is toward the right of this figure. Such movement would cause the clutch collar I50 shown in Fig. 20 to move toward the right to connect the driving shaft I28 with the crank shafts I26 and I25 for one direction of movement of the cam shaft counter-clockwise as viewed in Fig. 9 and clockwise as viewed in Figs. 14, 15 and 16. This would effect rotation of the cam in such direction as to effect the positioning of the aggregating support plates P1 and. P2 in consecutive position for inserting studs in the order of 1 to 22, as indicated in Fig. 13. During this cycle of operation of the machine, the pin I8I will be in the dotdash line position I8Ia shown in Fig. 9. At the close of one cycle of operation of the machine during which the cam shaft 94 rotates counterclockwise as viewed in Fig. 20, the pawl I19 will be turned counter-clockwise; and, during this movement of said pawl I19, it will engage the right-hand side of the pin at its position I8Ia and shift it back to the neutral position, thus causing the machine to stop with the pawl I19 located in the position I19a. In this position of pawl I19 it blocks movement of the bar I59 toward the right as viewed in Fig. 9; hence, the only way the machine can be started again is to move the pawl I19 toward the left as viewed in Fig. 9. Such movement of the pawl I19 will cause the clutch collar I50 to be moved toward the left, as viewed in Fig. 9, thereby connecting the crank shafts I25 and I26 with the drive shaft through an intermediate gearing which effects reverse rotation, thereby causing the cam shaft 94 to rotate clockwise as viewed in Fig. 9, or counter-clockwise as viewed in Figs. l4, l5 and 16. Such rotation of the cam will effect the reversal of the cycle of operation of the machine, causing studs to be stacked in the aggregating support plates P1 and P2 in the order of 22, 21, etc., back to 1.

The means for moving the slide bar 13 which carries the ram I2. as shown in Fig. 103 is operated from the rocking lever II2, shown in Fig. 10. This figure shows the. lever H2 in a mid-position corresponding-to the mid-position of the crank I22. Assuming that the crank I22 moves clockwise as viewed in Fig. 10., as the crank moves. downwardly the roller III] carried by the lever II2 will move upwardly in order to move the ram 55 upwardly. At the same time it is desired that the slide t3 move toward the right in order that the ram I2 may move a stud from the recess 79 into the stud receiving passage 55', shown in Fig. B. To accomplish this, the lever H2 is provided with a lug. I99 carrying a stud I9! which extends through a lug 192 integral with lever I93 loosely journalled in the stud II3. Between the lugs I99 and I92 is located a compression spring I 94 surrounding the stud l9! and tending to separate the two lugs. The separation' of these lugs is limited by nuts I95 and I95 threaded on the end of the stud I9I. As the lever 'IIZ rotates counter-clockwise to elevate the plunger 55, the lug I99 moves downwardly and causes the spring I94 to transmit movement of the lever I93 by causing it to move toward the right as viewed in Fig. 10. and to engage a stop screw I9! carried by'lug I98 integral with the slide E3. The adjustment of the stop screw is such that, during upward movement of the plunger 55, the ram 12 will move a stud from the recess"!!! to the passage 55 as shown in Fig.

' 10B. As one of the studs S is so moved, the

stack of studs S in the chute above the ram I2 will rest upon the top of the ram. Then, during the clockwise rotation of the lever H2. which follows, the plunger 55 will descend to push that stud which is located in passage 55 down into the aligned holes of the workholder and stud plates below. Also, during this clockwise movement of lever IIZ, the lever I93 will release the screw pin I91 and permit a spring I99, confined in a recess I99a in Fig. 103 and pushing against a pin I59 attached to slide I3, to move the slide 13 into the position shown in Figs. 10 and 10B in which the ram I2 has been withdrawn from the recess I9, thereby permitting another stud to fall upon the bottom wall BI of this recess.

Movement by the spring I99 of the slide I3 toward the left in Figs. 10 and 10B is limited by a stop plate 29L The amount of dwell on each of the lands L1 to L22 of cam I9! is such that the workholder will remain stationary during the time a stud S is being forced downwardly from the stud receiving passage 56 by the ram into the aggregating support plates P1 and P2 and at least until the stud S clears the lower end of the plates 5! and 58 which guide the ram.

To operate the machine, the operator sits in front of the machine, as viewed in Fig. 6, and uses his left hand to shift the control handle I59, and his right hand to load the aggregating support plates into the workholders. The workholder 4|, which is at the right of all other workholder-s shown in Fig. 6,- is in the loading position. It will benoted that an aggregating support plate P1 has been located thereon. After doing this, the operator will rotate the cover 41 into the position shown in Fig. 14 and will place the other aggregating support plate P2 upon the cover 41. The workholder is then loaded. Subsequently it passes into the operating position underneath the ram where the studs S are forced through the aligned openings in the aggregating support plates P1 and P2. The workholder 4| which is at the left of all other workholdersv carries an assembly of studs and stud plates. The work, however, is not unloaded from a workholder while in this position. When the workholder comes to the position nearest to the operator, then the cover ll is turned back as shown and it carries with it the assembly of studs and aggregating support plates which can be readily removed from the cover 47 by moving the assembly away from the cover pivot pin. The studs thus assembled are ready to be transported to a Bakelite press where end portions of the studs are each tipped with a ring-of molded Bakelite.

While the embodiment of the present invention as herein disclosed, constitutes a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow.

What is claimed is as follows:

1. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receiving recesses arranged in a plurality of rows comprising, in combination, means for receiving a work piece, a holder for the aggregating support, means for eflecting intermittently, longitudinally of the rows, a relative movement between the work piece receiving means and the holder for the aggregating support so as to effect consecutive alignment of the recesses in any one row in the support and the work piece, means for effecting intermittently, transversely of the rows, a relative movement between the work piece receiving means and the holder so as to effect consecutive alignment of the rows and the work piece, and means for moving the work piece, from the receiving means into an aligned recess of the aggregating support.

2. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receiving recesses arranged in a plurality of rows comprising, in combination, stationary means for receiving a workpiece, means for shifting the work piece in the receiving means, a holder for the aggregating support, means for intermittently moving the holder relative to the work piece receiving means, longitudinally of the rows so as to efiect consecutive alignment of the recesses in any one row in the support and the work piece, means for intermittently moving the holder relative to the work piece receiving means transversely of the rows so as to efiect consecutive alignment of the rows and the work piece, and means for moving the work piece from the receiving means into an aligned recess of the aggregating support.

3. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receivin recesses arranged in a row comprising, in combination, means for receiving a work piece, a holder for the aggregating support, power operated means for efiecting intermittently, longitudinally of the row a relative movement between the work piece receiving means and the holder so as'to effect consecutive alignment of the recesses in the aggregating support and the work piece, power operated means for moving the work piece from the receiving means into an aligned recess of the aggregating support, a clutch for connecting a source of mechanical power with the power operated means to rotate same, means for causing the clutch to disconnect the power operated means with the source of mechanical power for stopping the machine automatically after a predetermined num ber of assembling operations at which time the recesses of the aggregating support will be filled, and manual control means for causing the clutch to connect the source of power for starting the machine and effecting reversal of the means which effects relative movement between the work piece receiving means and the holder in order to effect reversal of the order in which the recesses of the aggregating support are filled.

l. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receiving recesses arranged in a row comprising, in combination, means for receiving a work piece, a holder for the aggregating support, means for intermittently moving the holder relative to the work piece receiving means, longitudinally of the row, so as to efiect consecutive alignment of the recesses in the support and the work piece, means for moving the work piece from the receiving means into an aligned recess of the aggregating support, a source of mechanical power; means for connecting the source of power with the moving means, means for disengaging the connecting means with the source of power and causing the machine to stop automatically after a predetermined number of assembling operations at which time the recesses of the aggregating support will be filled, and manual control means for engaging the connecting means with the source of power for starting the machine and effecting reversal of the means which efiects the movement of the support relative to the work piece receiving means in order to efiect reversal of the order in which the recesses of the aggregating support are filled.

5. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receiving recesses arranged in a plurality of rows comprising, in combination, means for receiving a work piece, a holder for the aggregating support, power actuated means for effecting intermittently, longitudinally of the rows, a relative movement between the work piece receiving means and the holder for the aggregating support so as to effect consecutive alignment of the recesses in any one row in the support and the work piece, power actuated means for effecting intermittently, transversely of the rows, a relative movement between the work piece receiving means and the holder for the aggregating support so as to efiect consecutive alignment of the rows and the work piece,

means for moving the work piece from the receiving means into an aligned recess of the aggregating support, a source of mechanical power, a clutch for connecting the source of power with the power actuated means to operate same, means to disengage the clutch and causing the machine to stop automatically after a predetermined number of assembling operations at which time the recesses of the aggregating support will be filled, and manual control means for connecting the clutch with the source of power starting the machine and effecting reversal of the means which effects relative movement between the work piece receiving means and the support in order to effect reversal of the order in which the recesses of the aggregating support are filled.

6. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receiving recesses arranged in a plurality of rows comprising, in combination, means for receiving a Work piece, a holder for I the aggregating support, power actuated means for intermittently moving the holder relative to the work piece receiving means longitudinally of the rows so as to effect consecutive alignment of the recesses in any one row in thesupport and the work piece, power actuated means for intermittently moving the holder relative to the work piece receiving means transversely of the rows so as to effect consecutive alignment of the rows and the work piece, means for moving the work piece from the receiving means into an aligned recess of the aggregating support, a source of mechanical power, a clutch for connecting the source of power with the power actuated means, means for disconnecting the clutch and causing the machine to stop automatically after a predetermined number of assembling operations at which time the recesses of the aggregating support will be filled, and means for connecting the clutch with the source of power for starting the machine and effecting reversal of the means which effects the movement of the holder relative to the work piece receiving means in order to eifect reversal of the order in which the recesses of the aggregating support are filled.

'7. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receiving recesses arranged in a plurality of rows comprising, in combination, means for receiving a work piece, a holder for the aggregating support, a slide carrying the holder and movable transversely of the rows of recesses in the aggregating support, a cam for controlling movement of the slide intermittently so as to align the rows of recesses consecutively with the work piece, a second slide carrying the first slide and movable longitudinally of the rows, a cam for controlling the movement of the second slide so as to bring the recesses in any one row consecutively into alignment with the work piece, a source of mechanical power, and coordinated mechanisms actuated by the source of power for operating the cams and for moving the work piece from the work piece receiving means into an aligned recess of the aggregating support.

8. A machine for assembling a plurality of similar work pieces with an aggregating support having workpiece receiving recesses arranged in a plurality of rows comprising, in combination, means for receiving a work piece, a holder for the aggregating support, a magazine for holding a plurality of work pieces, a slide carrying the holder and movable transversely of the rows of recesses in the aggregating support, a cam for controlling movement of the slide intermittently so as to align the rows of recesses consecutively with the work piece, a second slide carrying the first slide and movable longitudinally of the rows, a cam for controlling the movement of the second slide so as to bring the recesses in any one row consecutively into alignment with the work piece, a source of mechanical power and coordinated mechanism actuated by the source of power for operating the cams and for moving the work pieces singly from the magazine to the receiving means and from the receiving means into an aligned recess of the aggregating support.

9. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receiving recesses arranged in a plurality of rows comprising, in combination, means for receiving a work piece, a holder for the aggregating support, a magazine for holding a plurality of work pieces, a slide carrying the holder and movable transversely of the'rows of recesses in the aggregating support, a cam for controlling movement of the slide intermittently so as to align the rows of recesses consecutively with the work piece, a second slide carrying the first slide and movable in the direction of the rows, a cam for controlling the movement of the second slide so as to bring the recesses in any one row consecutively into alignment with the work piece, coordinated mechanisms including a clutch to connect a source of power for operating the cams and for moving the Work piece from the workpiece receiving means into an aligned recess of the aggregating support, means disengaging the clutch and causing the machine to stop automatically after a predetermined number of assembling operations at which time the recesses of the aggregating support will be filled, and means for engaging the clutch for starting the machine and eifecting reversal of the mechanism which operates the cams thereby effecting reversal of the order in which the recesses of the aggregating support are filled.

10. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receiving recesses arranged in a plurality of rows comprising, in combination, means for receiving a work piece, a holder for the aggregating support, a magazine for holding a plurality of work pieces, a slide carrying the holder and movable transversely of the rows of recesses in the aggregating support, a cam for controlling movement of the slide intermittently so as to align the rows of recesses consecutively with the work piece, a second slide carrying the first slide and movable longitudinally of the rows, a cam for controlling the movement of the second slide so as to bring the recesses in any one row consecutively into alignment with the work piece, coordinated mechanism including a clutch to connect a source of power for operating the cams and for moving the work pieces singly from the magazine to the receiving means and from the receiving means into an aligned recess of the aggregating support, means for disengaging the clutch and causing the machine to stop automatically after a predetermined number of assembling operations at which time the recesses of the aggregating support will be filled, and means for engaging the clutch to connect the ource of power for operating the machine and effecting reversal of the mechanism which operates the cams thereby effecting reversal of the order in which the recesses of the aggregating support are filled.

11. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receiving recesses arranged in. a plurality of rows comprising, in combination, means for receiving a work piece, a rotatable table carrying a plurality of holders each adapted to receive an aggregating support, means for securing the table in various positions in each of which a holder is positioned for locating an aggregating support in position for assembly, means for effecting intermittently, longitudinally of the rows, a relative movement between the work piece receiving means and the aggregating support so as to efiect consecutive alignment of the recesses in.any one row in the support and the work piece, means for effecting intermittently, transversely of the rows, a relative movement between the work piece receiving means and the holder for the aggregatin support so as to effect consecutive alignment of the rows and the workpiece, and means for moving the workpiece from the receiving means into an aligned'recess of the aggregating support.

12. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receiving recesses arranged in a plurality of rows comprising, in combination, means for receiving a work piece, a rotatable table carrying a plurality of holderseach adapted to receive an aggregating support, means for securing thetable in various positions in each of which a holder is positioned for locating an aggregating support in position for assembly, a slide carrying the holder table and movable transversely of'the rows of recesses in the aggregating support, a cam for controlling movement'of the slide intermittently so as to align the rows of recesses consecutively with the work piece, a second slide carrying the first slide and movable longitudinally ,of the rows, a cam for controlling the movement of the second slide so as to bring the recesses in any one row consecutively into alignment with the work piece, a source of mechanical power, coordinated mechanisms associated with the source of power for operating the cams and for moving the Work piece from the work piece receiving means into an aligned recess of the ag regating support.

13. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receiving recesses arranged in a plurality of rows comprising, in combination, means for receiving a work piece, a rotatable table carrying a plurality of holders each adapted to receive an aggregating support, means for securing the table in various position in each of which a holder is positioned for locating an aggregating support in position for assembly, a magazine for holding a plurality of work pieces, power actuated means for effecting intermittently, longitudinally of the rows, a relative movement between the work piece receiving means and the aggregating support so as toeffect consecutive alignment of the recesses in any one row in the support and the work piece, power actuated means for effecting intermittently, transversely of the rows, a relative movement between the work piece receiving means and the aggregating support so as to effect consecutive alignment of the rows and the work piece, a source of mechanical power, a clutch adapted to connect the power actuated means with the source of power, coordinated mechanisms for producing operation of the means which efiects relative movement between the work piece receiving means and the aggregating support and for causing the work pieces to move singly from the magazine to the work piece receiving means and to move from the work piece receiving means to an aligned recess in the aggregating support, means rendering the clutch ineffective and causing the machine to stop automatically after a predetermined number of assembling operations at which time the recesses of the aggregating support will be filled, and manual operated means for rendering the clutch efiective and starting the machine and effecting reversal of the means which effects relative movement between the work piece receiving means and the support in order to effect reversal of the order in which the recesses of the aggregating support are filled.

14. A machine for assembling a plurality of similar work pieces with an aggregating support having work piece receiving recesses arranged in a plurality of rows comprising, in combination,

means for receiving a work piece, a rotatable table carrying a plurality of holders each adapted to receive an aggregating support, means for securing the table in various positions in each of which a holder is positioned for locating an aggregating support in position for assembly, a slide carrying the holder table and movable transversely to the direction of the rows of recesses in the aggregating support, a power actuated cam for controlling the transverse movement of the slide intermittently so as to align the rows of recesses consecutively with the work piece, a second slide carrying the first slide and movable longitudinally of the rows, 3, power actuated cam for controlling the longitudinal movement of the second slide so as to bring the recesses in any one row consecutively into alignment with the work piece, coordinated mechanisms for operating the cams and for moving the work piece from the work piece receiving means into an aligned recess of the aggregating support, coordinated means for operating the cams and for moving the work pieces singly from the magazine to the work piece receiving means, and from the work piece receiving means into an aligned recess of the aggregating support, a source of power, a clutch for connecting the power actuated cams with the source of power, means for disengaging the clutch for stopping the machine automatically after a predetermined number of assembling operations at which time the recesses of the aggregating support will be filled, and manual control means for starting the machine and effecting reversal of the mechanism which operates the power actuated cams thereby effecting reversal of the order in which the recesses of the aggregating support are filled.

LORA E. POOLE.

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