US1964434A - Assembling machine - Google Patents

Description

June 26, 1934. J. Q. HOLMES ET AL 1,964,434

ASSEMBLING MACHINE Filed April 15, 1932 6 Sheets-Sheet 2 ll-! I I 188 I W J 127 183 4 4 12 I 72 wuemtcwl 71 76 M/ 124-) ,AQ M F2 5 June 26, 1934. J. Q. HOLMES ET AL 1,964,434

ASSEMBLING MACHINE Filed April 15, 1932 6 Sheets-Sheet 3 360OF ROTATION OF GENE w: DRIVING WHEEL STROKE OF PUNCH Pkasssuoe MOVEMENT 0F c o/v VE m/e COMPRESSED AIR PELEISED FOR BLOW- MIG ASSEM. INTO (fl/UTE GR/PPER ARMS //v NONGRIPP/NG Pas.

June 26, 1934. J. Q. HOLMES El AL ASSEMBLING MACHINE Filed April 15, 1952 6 Sheets-Sheet 5 8 an M Z f June 26, 1934. J HOLMES 1- AL 1,964,434

ASSEMBLING MACHINE Filed April 15, 1932 6 Sheets-Sheet 6 a2- .r' 5 g I 9 a1 93 el I .95 9 .99 9 91 114 108 no if 107 117 HZ 116a. 2 133 113 1M Patented June 26, 1934 UNITED STATES PATENT OFFICE ASSEMBLING MACHINE Application April 15, 1932, Serial No. 605,424

31 Claims.

This invention relates to a machine for assembling two telescopically engaging members one of which has a preformed deformation.

It is among the objects of the present invention to form one of a pair of telescopically engaging members ina workholder'about the preformed deformation of the other member.

Another object of the present invention is to eject the assembled members from the workholder.

Still another object of the present invention is successively to convey the workholder from a loading position to an assembling position and then to an assembly ejecting position.

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 one form of the present invention is clearly shown.

In the drawings:

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

Fig. 2 is a fragmentary view looking in the direction of arrow 2 in Fig. 1.

Fig. 3 is a sectional view taken substantially on the line 3--3 of Fig. 2.

Fig. 4 is a fragmentary sectional view substantially on the line 4--4 of Fig. 1.

Fig. 5 is a fragmentary view looking in the direction of arrow 5 in Fig. 2, and showing certain parts in section taken substantially along the line 5-5 of Fig. 2.

Fig. 6 is a fragmentary sectional view of the S5 gripper operating mechanism and is taken substantially on the line 6-6 of Fig. 4.

Fig. '7 is a view similar to Fig. 6 showing, however, a different position of the gripper operating mechanism.

Fig. 8 is a fragmentary sectional view taken on the line 8-8 of Fig. 7.

Fig. 9 is a fragmentary sectional view illustrating the manner in which the grippers snap over the assembly. 1

Fig. 10 shows the grippers engaging the assembly which is partially lifted from the workholder.

Fig. 11 shows the grippers in an uppermost non-gripping position.

Fig. 12 is an enlarged fragmentary sectional 53 view taken along the line 12--12 of Fig. 5, and

showing the members to be assembled in their relative position to each other before being assembled. Fig. 13 is a sectional view similar to Fig. 12 and 55 showing the members assembled.

taken Fig. 14 is a fragmentary sectional view similar to Fig. 11, showing, however, the members shortly before final assembly.

Fig. 15 is a sectional view through the clutch control mechanism in clutch disengaging position.

Fig. 16 is a sectional view similar to Fig. 15, showing the clutch control mechanism in clutch engaging position.

Fig. 17 is an enlarged fragmentary sectional view taken on the line 1'7-17 of Fig. 15.

Fig. 18 is an enlarged sectional view taken on the line 18-18 of Fig. 16.

Fig. 19 is a chart illustrating the timed relationship between certain operations of the machine.

Referring to the drawings and particularly to Fig. 1 the reference numeral 20 designates a punch press having a vertically reciprocable slide 21, a crank shaft (not shown) for reciprocating the slide and a pulley 22 loosely supported on the crank shaft, drivingly connected therewith by a clutch arrangement (to be described) and driven from a line shaft (not shown) by a belt 23. A ram 24 is secured by screws 20a to a plate 21a which in turn is secured to the slide 21 in any suitable manner.

As best shown in Figs. 1 and 5, a bracket 25 is secured to the bolster plate 26 of the punch press by screws 27. Mounted in the bracket 25 is a vertically extending stub shaft 28 which carries annular ball bearings 29 and 30 for journaling the hollow hub 31 of a conveyor 32 coaxially of the shaft. The hub 31 of said conveyor rests against a collar 33 of the shaft 28 which takes up the only occurring thrust of the conveyor 32. The ball bearings 29 and 30 are held spaced from each other by an interposed tubular collar 34 and held against longitudinal movement relative to the shaft 28 by' a shoulder 35 of the shaft 28 against which ball bearing 30 rests and a nut 36, threadedly received by the end of shaft 28, which maintains ball bearing 29 in firm engagement with the tubular collar 34. A plate 37 covers the hollow hub 31 of the conveyor and is secured thereto by screws 38.

A plurality of .workholders 40, in the present instance eight of them, are located within annular recesses 41 of the conveyor 32 in equal spaced relationship and secured thereto by screws 42. As best shown in Figs. 5, 10 and 11, each of these workholders provides an annular recess 43 and a bore 44 which continues throughout a die 45, located in an annular recess 46 of each workholder and secured therein by a set screw 47. A

annular recess 43 and has its open end closed by a plug 49, threaded into the cup shaped member, which normally rests on a wear piece 50 of hardened steel, pressfitted into the conveyor 32 and carrying a rod 51 which extends through the cup shaped member and the bore 44 of the workholder coaxially thereof. slidable on the rod 51 and within the cup shaped member 48 is an ejector 52 which is urged into engagement with the bottom of the cup shaped member 48 by a spring .54 interposed between the ejector and the plug 49. Each one of the wear plates 50 slidably supports a plurality of pins 55, having heads 56 which are embedded in each wearpiece so as to be flush with the wearpiece surface 57 adjacent the cup shaped member 48.

As best shown in Figs. 1, 12, 13 and 14, a choke rod guide tube 50a, providing an annular bead 51a. is shown located within the bore 44, extending through an aperture 52a in the bottom of the cup shapedmember 48 and resting against the ejector 52. The rod 51 extends through the choke rod guide tube in close proximity to the interior annular surface thereof. A bushing 53a, having a countersunk portion which is to be bent about the head of the guide tube is passed over the end of the latter by the operator and held in proper alignment with the guide by a cylindrical portion 54a. of the die 45, which guides the countersunk portion of the bushing relative to the guide tube. The die 45 comprises a beveled annular surface 55a which is so located relative to the bead 51a of the guide tube that, when the latter is in the lowermost position, shown in Fig. 13 the beveled annular surface 55a of the die forces the countersunk portion of the bushing to bend about the bead of the guide tube upon continued movement of the bushing relative to the now stationary guide tube. The rod 51 is adapted axially to align the bores of the bushing and guide tube and to prevent giving'way of the annular wall of the guide tube under the substantially radial pressure exerted upon this annular wall by the countersunk portion of the'bushing while being' bent about the bead. A, cover plate 56a is secured to the bracket'25 by screws 57a and provides an annular race 58a. for the conveyor. This annular race is flush with a wear plate 59, which is in alignment with the ram 24 and secured to a reenforced portion 60a .of the l Conveyor indexing means Referring more particularly to Figs. 1, 2, 3, and 5, an electric motor 60 carries a pinion 61 which meshes with a gear 62, mounted on a horizontal shaft 63 journaled in annular ball bearings 64 and 65, located in a casing 66 which is secured to the bracket 25 by screws 67. A worm 68, keyed at 69 to the shaft 63 intermediate the ballbearings meshes with a worm gear 70, keyed at 71 to a vertical shaft 72 which is journaled in bearings 73 and '74 provided by a boss 75 of. the bracket 25 and boss 76 of the casing 66 respectively. A plate 78, secured to the casing 66 by screws 79 carries a thrust bearing 80 against which a collar 81, secured to shaft 63 by a set screw 82, rests and transmits the thrust of the cup shaped member 48 is slidable within the worm carrying shaft 63 to' the thrust bearing 80. The worm gear carrying shaft 72 provides a collar 83 which rests against bearing 73 and transmits the only occurring thrust of this shaft to said bearing. Keyed to the end of shaft 72 which extends into bracket 25 is a Geneva driving -wheel -84 which meshes with a Geneva driven wheel 85, keyed at 86 to the hub 31 of the conveyor coaxially thereof. In the present instance the Geneva driven wheel comprises eight radial slots in conformity with the eight workholders on the conveyor.

I Release of ram Referring now to Figs. 2, 3, 5 and 15 to 17, inclusive, the pulley 22 carries a bearing liner 91 which is journaled on the end of the crankshaft 92. The continuously rotating pulley 22 is connectible with the crank shaft by a clutch arrangement which comprises a driving pin 93, urged by a spring 94 toward a clutch member 95, attached by a key 96 to the end of the crankshaft. The pin 93 is provided with a shoulder 97,

cooperating with a latch block 98, guided for radial sliding movement by a notch, provided in the hub of the pulley 22 and urged into latching position by a spring 99, located between the latch block 98 and a head 100 of a pin 101, attached to the pulley 22. Referring particularly to Figs. 17 and 18 the pin 93 is adapted to move toward the latch into a notch 102, provided by the member 95 and there to engage a wear piece 103. In order that the latch block 98 may be retracted from the pin 93 to permit it toengage the wear piece 103, there is provided a latch release block 104, mounted on an operating rod which passes through bracket arms 106 and 107 and which is yieldingly urged upward into the position shown in Fig. 15 by a spring 108. The rod 105 is pivotally connected at 109 with a piston rod 110 carrying a piston. 111 which is slidable within the bore 112 of a cylinder block 113, secured to the punchpress frame in any suitable manner. The piston rod 110 passes through a smiling box 114, secured to the cylinder block 113- by screws 115. The other end of the cylinder bgre 112 is closed by a plug 116 having a vent hole 116a and being threaded into the cylinder bore 112. A spring 117, interposed between the piston 111 and the plug 116 urges the piston into an uppermost position, as shown in Fig. 15. A nipple 118 is threaded into a boss 119 of the cylinder block and communicates through a duct 120 with a cylinder chamber defined by the cylinder bore 112, the stumng box 114 and that side of the piston 111 which is remote from the spring 117. The nipple 118 communicates through a rubber hose 121 with a duct 122 in a valve body 123, secured to the bracket 25 by screws 124, and,

receives a sliding valve 125 which is held in firm engagement with the shoulder of a rod 126 by a nut 127 received by the threaded end of said rod. The rod 126 extends through a side wall of the bracket 25 and provides a collar 128 which is urged into engagement with a shoulder 129 in the side wall of the bracket by a spring 130, interposed between said collar and the valve body 122 as best shown in Fig. 3. When the valve 125 is. in the position shown in Fig. 3, it provides communication between duct 122 and another duct 131 in the valve body which leads to the atclockwise rotation of the Geneva driving wheel as viewed in Fig. 2, will move said rod toward the right against the tension of spring 130 and shift the valve 125 from the position shown in Fig. 15 to the position shown in Fig. 16. In the latter position the valve 125 provides communication between duct 122 and another duct 133 in the valve body, which duct communicates with a supply of compressed air (not shown) through a rubber hose 134. Compressed air is thus admitted to the cylinder chamber 112 forcing the piston 111 to descend from the position shown in Fig. 15 to the position shown in Fig. 16 against the tension of spring 117. Such movement of the piston 111 causes the latch release block 104 to move the latch block 98 downwardly in order to permit the spring 94 to move the pin 93 into operative engagement with the wearpiece 103 of the clutch member 95. When this occurs the pulley 22 will be drivingly connected with the crank shaft. The cam portion 132 on the Geneva driving wheel is so designed that it releases the rod 126 long before the pulley 22 has rotated the crankshaft once, so that at the end of one revolution of the crank shaft the pulley will be automatically disconnected from the same by the described mechanism. The spring 108 will return the block 104 to normal position. In the normal position of the block 104, its beveled camming surface 104a will be so located that it will be engaged by the left hand end of the 'pin 98 as it rotates around into contact with the block 104.

Thus the block 104 cooperates to move the pin from clutch engaging position to clutch disengaging position shown -in Figs. 18 and 17, respectively. When the pin 93 has been returned to the position shown in Fig. 16, the latch 98 will operate to hold it in this position.

Mechanism for removing assembly from workholders Referring more particularly to Figs. 1 and 4 to 11 inclusive, a pair of cooperating grippers 140 are pivoted at 141 to a lug 142 of the ram carrying plate 21a. A spring 143 urges the grippers into gripping position. Secured to a plate member 144 on the plate 21a by a set screw 145 is a vertically extending rod 146, adapted to rock a lever 147, pivoted at 148 to the cover plate 56a, clockwise whenever the ram carrying plate 21a approaches its lowermost position, which is shown in Fig. 10. A plunger 149, slidable within an annular recess 150 of cover plate 56a is urged into the dot and dash position shown in Fig. 10, by a spring *151 which is interposed between a collar 152 of the plunger 149 and the bottom of recess 150. The clockwise rotated lever 147 moves the plunger from the dot and dash position to the full line position thereby forcing the pins 55 upwardly, which move the cup shapedmember 48 upwardly relative to its workholder. The ejector 52 yieldingly follows the upward movement of the cup shaped member and lifts the assembly partially from the workholder as shown in Fig. 10. Shortly before the assembly reaches the position shown in this figure, the grippers 140 engage the assembled bushing 53a and snap over the head thereof as best illustrated in Fig. 9 and then grip the bushing 53a immediately behind the head thereof.

When the ram carrying plate 21a moves upwardly, the grippers 140 remove the assembly entirely from its workholder. With special reference to Figs. 4, 6 and 7, the plate 21a provides a rectangular groove 153 slidably receiving a bar 154. One end of this bar is pivoted at 155 to a cylindrical member 156 which in turn is slidable in an annular recess 157 of the plate 21a. A T-member 158 is guided for vertical movement relative to the plate 21a in a groove 159 of the latter and is pivoted at 160 to the other end of the bar 154. Secured to the plate 21a by screws 161 is a flanged sleeve 162. A spring 163, located in an annular recess 164 in the plate 21a and bearing against the bar 154 tends to maintain the latter in engagement with a surface 165 of the flanged sleeve 162 as shown in Fig. 6. In this position of the bar 154 the T member 158 is heldout of engagement with the grippers 140. Slidable within the flanged sleeve 162 is a rod 166 which rests against the bar 154 and supports another bar 167, extending through an aperture 168 in the slide 21. The spring 163 is strong enough to maintain the bar 154 in the position shown in Fig. 6, in spite of the rod 166 and the bar 167, which rest on said bar 154. Head screws 169 and 170 are threadedly received by brackets 171 and 172, respectively, secured to the punch press frame by screws 173 and 174, respectively. These screws are in alignment with the ends of bar 167 and are so adjusted on their respective bracket that each head screw will engage the bar 167 shortly before the slide reaches an uppermostposition. This results in relative movement of the slide 21 and plate 21a relative to the bar 167, rod 166, bar 154 and Tmembar 158. As the grippers are movable with the plate 21a, they will also move relative to the now stationary T member 158 and finally engage the latter, which results in a movement of the grippers into non-gripping position as illustrated in Figs. 8 and 11.

Referring more particularly to Figs. 1 to 5, inclusive, a rubber hose 180 is shown connected at 181 to a. Powell blow gun 182 and leading adjacent the assembly in a position when being ungripped as shown in Fig. 1. The Powell blow gun of well known construction is secured by an angle 179 to the bracket 25 and is normally closed, thereby intercepting communication between a supply of compressed air (not shown) and the rubber hose 180. A rod 183 extends through a sidewall of the bracket 25 and provides a collar 184, urged into engagement with a shoulder 185 in said sidewall by a spring 186, interposed between said collar and a rod guiding plate 187 which is secured to the bracket 25 by screws 188. As best shown in Fig. 3, rod 183 is displaced with respect to rod 126 which actuates the sliding valve 125, so that the cam portion 132 on the periphery of the Geneva driving wheel, adapted to shift rod 126, does not interfere with rod 183. A beveled cam portion 189 is, as best shown in Fig. 5, secured to the lower surface of the Geneva driving wheel by screws 190 and is adapted when moving past said rod to move it against the tension of spring 186 so as to open the Powell blow gun and admit compressed air to flow through the rubber hose for a limited period of time.. The opening of the Powell blow gun is so timed that compressed air will flow through the rubber hose when the grippers are ungripping the assembly and blow the latter into a suitable chute 191.

Mode of operation The operator continuously inserts; a choke rod guide tube which is loosely assembled with a bushing into the passing workholders at station A in Fig. 1. The intermittently moving conveyor brings a workholder into alignment with the movable ram at station B and then stops. The beveled cam portion 132 of the continuously rotat-' ing Geneva driving wheel thereafter moves. past the rod 126, efl'ecting driving engagement of the pulley 22 with the crank shaft for one complete revolution of the latter as earlier explained. The slide 21 makes therefore one reciprocation. During the down stroke of the slide 21, the ram 24 engages the loosely assembled bushing and moves the same relative to the die and the supported choke rod guide tube until at the end of the downward stroke the countersunk portion of thebushearlier described manner from a workholder at station C. The slide 21 immediately reverses its stroke and moves upwardly, the ram separates from the just assembled bushing and the grippers completely remove the assembled bushing from the workholder at station C. Right before the grippers are caused to ungrip the assembled bushing during the latter part of the upstroke of the slide, the beveled cam 189 on the Geneva driving wheel moves past the rod 183 and shifts the same so as to open the Powell blow gun and admit compressed air to the rubberhose 180, which air will blow the released assembly of choke rod guide tube and bushing into the chute 191. During the next following intermittent movement of the conveyor by the Geneva driving wheel, another workholder, carrying a loosely supported guide tube and bushing is moved in alignment with the ram 24 at station B, while the previously assembled guide tube and bushing are moved by their workholder in alignment with the grippers 140 at station C.

Fig. 19 illustrates the timed relationship between one reciprocation of the punchpress slide 21, one intermittent movement-of conveyor 32, the. time during which compressed air flows through the rubber hose 180 in order to blow an ungripped assembled guide tube and bushing into chute 191, and the time during which thegrippers are-in an ungripping position, all of which are based upon one complete revolution of the Geneva driving wheel. It will be noted from the chart that compressed air is flowing through the rubber hose when the grippers move into non-gripping position; it will furthermore be noted that the gripper armsmaintain a gripping'position during the return or upstroke of the punchpress slide.

While the form of 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 th scope of the claims which follow.

What is claimed is as follows: 1

1. A machine for assembling two members comprising, in combination, a workholder for supporting twomembers; means including a reciprocable ram for assembling the two members during a forward stroke of said ram; and means operated in response to a forward stroke of the ram for gripping a pair of assembled members, and actuated in response to the backward stroke of the ram for removing the pair from the worksupporting two members; means including a reciprocable ram for assembling the two members during a forward stroke 'of said ram; means operated in response to a backward stroke of the ram for removing a pair of assembled members .from a workholder; and yielding means for ejecting the pair of assembled members, from the last said means.

3. A machine for assembling two members comprising, in combination, a rotatable conveyor; a plurality of workholders carried by the conveyor and each receiving two members, said workholders being moved by the conveyor successively into an assembling station; means including a reciprocable ram for assembling two members in the assembling station during a forward stroke of said ram; and means actuated in response to a backward stroke of the ram for removing a pair of assembled members from a workholder.

4. A machine for assembling two members.

comprising, in combination, a rotatable conveyor; a plurality of workholders carried by the conveyor and each receiving two members, said workholders being moved by the conveyor successively into an assembling station; means including a reciprocable ram for assembling two members in the assembling station during a forward stroke of said ram; and means actuated in responseto'a forwardstroke of the ram for gripping a pair of assembled membersand actuated in'response to a backward stroke of the ram for removing said pair from a workholder.

5. A machine for assembling two members comprising, in combination, a rotatable conveyor; a pluralityof workholders carried by the conveyor and each supporting two members, said workholders being moved by the conveyor successively into an assembling station and into an assembly ejecting station; means including a reciprocable ram for assembling two members-in the assembling station during a forward stroke of said ram; and means partly removing a pair of assembled members from a workholder in the ejecting station in response to a forward stroke of the ram and completely removing said members from said workholder in the ejecting station in response to a backward stroke of the ram.

6. A machine for assembling two members comprising, in combination, a rotatable conveyor; a plurality of workholders carried byjthe conveyor and each supporting two members, said workholders being moved by the conveyor successively into an assembling station andinto an assembly ejecting station; means including a reciprocable ram for assembling two members in the assembling station during a forward stroke ejecting station in response to a forward stroke of the ram;- and means gripping the partly removed pair of members in response to a forward stroke of the ram and removing said pair from'the workholder in the ejecting station in response to a backward stroke of the ram.

7.. A machine for assembling two members comprising, in combination, a rotatable conveyor; a plurality of workholders carried by the conveyor and each supporting two members, said workholders being moved by the conveyor successively into an assembling station and into an assembly ejecting station; means including a reciprocable ram for assembling two members in the assembling station during a forward stroke of said ram; means actuated in response toa backward stroke of the ram for removing a pair of assembled members from a workholder in the ejecting stacomprising, in combination, a rotary conveyor;

a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of said ram; power means for reciprocating the ram; means for intermittently rotating the conveyor so as successively to move the workholders into alignment with the ram; and means connecting the power means with the ram for one reciprocation of the latter in response to operation of the intermittent rotating means.

9. A machine for assembling two members, comprising, in combination, a rotary conveyor; a plurality of workholders carried by'the conveyor and each supporting two members; means including a reciprocable ram for assembling the two members during a forward stroke of said ram; a pair of grippers moving with the ram for removing a pair of assembled members from a workholder; and yielding means for ejecting a pair of assembled members from the grippers.

10. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram forassembling two members during a forward stroke of said ram; power means for reciprocating the ram; means for intemittently rotating the conveyor so as successively to move the workholders into alignment with the ram; means connecting the power means with the ram for one reciprocation of the latter in response to operation of the intermittent rotating means; and means actuated in response to a backward stroke of the ram for removing a pair of assembled members from a workholder.

11. A machine for assembling two members comprising; in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of said ram; power means for reciprocating the ram; means for intermittently rotating the conveyor so as successively to move the workholders into alignment with the ram; means connecting the power means withthe ram for one reciprocation of the latter in response to operation of the intermittent rotating means; and means-actuated in response to a forward stroke of the ram for gripping a pair of assembled members and actuated in response to a backward stroke of the ram for removing the assembled members from a workholder.

12. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of said ram; power means for reciprocating the ram; means for intermittently rotating the conveyor so as successively to move a workholder into alignment with the ram; means connecting the power means with the ram for one reciprocation of the latter in response to operation of the intermittent rotating means; and means movable wih the ram for removing a pair of assembled membersfrom a workholder.

1.3. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members means including a reciprocable ram for assembling two members during a forward stroke of said ram; power means for reciprocating the ram; means for intermittently rotating the conveyor so as successively to move a workholder into alignment with the ram and into an assembly ejecting station; means connecting the power means wtih the ram for one reciprocation of the latter in response to operation of the intermittent rotating means; means partly removing a pair of assembled members from a workholder in the ejecting station in response to a forward stroke of the ram, and completely removing said pair from said workholder in the ejecting station in response to the backward stroke of said ram.

14. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable rain for assembling two members;- during a forward stroke of said ram; power means for reciprocating the ram; means for intermittently rotating the conveyor so as successively to move a workholder into alignment with the ram and into an assembly ejecting station; means connecting the power means with the ram for one reciprocation of the latter in response to operation of the intermittent rotating means; means partly removing a pair of assembled members from a workholder in the ejecting station in response to a forward stroke of the ram; and means gripping said pair of partly removed members in response to a forward stroke of the ram, and removing said pair from said workholder in the ejecting station in response to the backward stroke of the ram.

15. A machine for assembling two unembers comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable rain for assembling two members during a forward stroke of the ram; means for intermittently rotating the conveyor so as successively to move the workholders into alignment with the ram; means for removing a pair of assembled members from a workholder; and yielding means for ejecting said pair of assembled members from the last said means.

16. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of the ram; means for intermittently rotating the conveyor so as successively to move the workholders into alignment with the ram; means actuated in response to a backward stroke of the ram for removing a pair of assembled members from a workholder; and yielding means for ejecting said pair of assembled members from the last said means.

17. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of the ram; means for intermittently rotating the conveyor so as successively to move the workholders into alignment with the ram; means for removing a pair of assembled members from a workholder; and means yieldingly ejecting said pair of assembled members from the last said means in re- I sponse to operation of the intermittent rotating means.

18. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of the ram; means for intermittently rotating the conveyor so as successively to move the workholders into alignment with the ram; means actuated in response to a backward stroke of the ram for removing a pair of assembled members from a workholder; and means yieldingly ejecting said pair of assembled members from the last said means in response to operation of the intermittent rotating means.

19. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of said ram; means for intermittently rotating the conveyor so as successively to move the workholders into alignment with the ram and into an assembly ejecting station; means actuated in response to a forward stroke of the ram for partly removing a pair of assembled members from a workholder in the ejecting station; means actuated in response to a backward stroke of the ram for removing said pair of assembled members from said workholder in the ejecting station; and yielding means for ejecting said pair from the last said means.

20. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means in?- cluding a reciprocable ram for assembling two members during a forward stroke of said ram; means for intermittently rotating the conveyor so as successively to move the workholders into alignment with the ram and into an assembly ejecting station; means actuated in response to a forward stroke of the ram for partly removing a pair of assembled members from a workholder in the ejecting station; means actuated in response to a backward stroke of the ram for removing said pair of assembled members from said workholder in the ejecting station; and means yieldingly ejecting said pair from the last said means in response to operation of the intermittent rotating means.

21. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of the ram; power means for reciprocating the ram; means for intermittently rotating the conveyor so as successively to move the workholders into alignment with the ram; means connecting the power means with the ram for one reciprocation of the latter, in response to operation of the intermittent rotating means; means for removing a pair a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of the ram;

power means for reciprocating the ram; means for intermittently rotating the conveyor so as successively to move the workholders into alignment with the ram; means connecting the power means with the ram for one reciprocation of the latter in response to operation of the intermittent rotating means; means removing a pair of assembled members from a workholder in response to a backward stroke of the ram; and means yieldingly ejecting the assembled members from the last said means in response to operation of the intermittent rotating means.

23. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members means including a reciprocable ram for assembling two members during a. forward stroke of said ram; power means for reciprocating the ram; means for intermittently rotating the conveyor so as successively to move the workholders into alignment with the ram; means connecting the power means with the ram for one reciprocation of the latter in response to operation of the intermittent rotating means; means actuated in response to a forward stroke of the ram for gripping a pair of assembled members-and actuated in response to the backwardstroke of the ram for removing the assembled members from a workholder; and means yieldingly ejecting the assembled members from the last said means in response to operation of the intermittent rotating means. I

24. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of said ram; power means for reciprocating the ram; means for intermittently. rotating the conveyor so as successively to move the workholders into alignment with the ram and into an assembly ejecting 1 station; means connecting the power means with the ram for one reciprocation of the latter in response to operation of the intermittent rotating means; means actuated in response to a forward stroke of the-ram for partly removing a pair ofassembled members from a workholder in the ejecting station; means actuated in response to a backward stroke of the ram for completely removing said pair of assembled members from said workholder in the ejecting station; and

yielding means for ejecting said pair from the last mentioned means.

25. A machine for assembling two members comprising, in combination, a rotary conveyor;

a plurality of workholders carried by the; conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of said ram; power means for reciprocating the ram; means for intermittently rotating the-conveyor so as successively to move the workholders into alignment with the ram and into an assembly ejecting station; means connecting the power means completely removing said pair of assembled members from said workholder in the ejecting station; and means yieldingly ejecting said pair from the last said means in response to operation of the intermittent rotating means.

26. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of said ram; power means for reciprocating the ram; Geneva wheels for indexing the conveyor so as successively to move the workholders into alignment with the ram; means connecting the power means with the ram for one reciprocation of the latter in response to rotation of the Geneva driving wheel; means for removing a pair of assembled members from a workholder in response to a backward stroke of the ram; normally inoperative means for yieldingly ejecting said pair from the last said means; and

means on the Geneva driving wheel for rendering said ejecting means effective.

27. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of the ram; power means for reciprocating the ram; means forintermittently rotating the conveyor so as successively to move the workholders into alignment with the ram; means connecting the power means with the ram for one reciprocation of the latter in response to operation of the intermittent rotating means; a pair of cooperating grippers movable with the ram for removing a pair of assembled members from a workholder; means for supplying fluid pressure; a conductor reaching adjacent the grippers in an end position remote from the conveyor; a normally closed valve intercepting communication between the fluid pressure supplying means and the conductor; and means opening the valve in response to operation of the intermittent rotating means thereby allowing fluid pressure to flow through said conductor and eject a pair of assembled members from the grippers.

28. A machine for assembling two members comprising, in combination, a rotary conveyor; a plurality of workholders carried by the conveyor and each supporting two members; means including a reciprocable ram for assembling two members during a forward stroke of said ram;

power means for reciprocating the ram; means for intermittently rotating the conveyor so as successively to move the workholders into alignment with the ram; means connecting the power means with the ram for one reciprocationof the latter in response to operation of the intermittent rotating means; a pair of cooperating grippers normally urged into gripping relationship and movable with the ram for gripping a pair of assembled members during a forward stroke of the ram and for removing said pair from a workholder during a backward stroke of the ram; stationary means engaging and thereby causing the grippers to release the pair of assembled members during the latter part of the backward stroke of the ram; means for supplying fluid pressure; a conductor reaching adjacent the grippers in releasing position; a normally closed valve intercepting communication between the fluid pressure supplying means and the conductor;

and means opening said valve in response to operation of the intermittent rotating means thereby allowing fluid pressure to escape through the conductor and eject a pair of assembled members from the grippers, said means opening the valve shortly before the grippers relase the members and maintaining the valve open until the grippers have-released the members.

29. Inv a machine for assembling a pair of telescopically engaging members, one of which has a lateral extension and the other has a recessed portion for receiving the lateral extension, the combination of a workholder embracing the outside of a pair, of telescopically engaging members; a spring urged element on which said one member rests; a stop for limiting depression of the element against its tendency to move in the opposite direction; a stationary die for forming the recessed portion of said other member about the lateral extension of said one member; and means for moving said other member toward the element whereby the lateral extension of said one member is yieldingly forced into the recessed portion ofsaid other member due to the depression of the spring urged element into engagement with the stop, the die and stop being so associated that upon engagement of the element with the stop and continued movement of said other member toward the element, the die deforms the recessed portion of said other member about the lateral extension of said one member.

30. In a machine for assembling a pair of telescopically engaging members one of which has a lateral extension and the other has a recessed portion for receiving the lateral extension, the combination of a workholder embracing the outside of a pair of telescopically engaging members and providing a die surface for forming the recessed portion of said other member about the lateral extension of said one member; a spring urged element on, which said one member rests; a stop for limiting depression of the element against its tendency to move in the opposite direction; and means for moving said other member toward the element whereby the lateral extension of said one member is yieldingly forced into the recessed portion of said other member due to the depression of the spring urged element into engagement with the stop, the die surface and stop being so associated that upon engagement of the element with the stop and continued movement of said other member toward the element, the die surface deforms the recessed portion of said other member about the lateral extension of said one member.

31. In a machine for assembling a pair of telescopically engaging members, one of which has a lateral extension and the other has a recessed portion for receiving the lateral extension, the combination of a workholder embracing the outside of a pair of telescopically engaging members; a substantially closed housing received in the workholder and guided thereby for limited movement coaxially of the members; an ejector on which said one member rests, said ejector being received in the housing and movable therein within predetermined limits coaxially of the members and yieldingly urged toward said members; a stationary die for forming the recessed portion of said other member about the lateral extension of said one member; means for moving said other member toward the ejector whereby the lateral extension of said one member is yieldingly forced into the recessed portion of said other member due to the depression of the ejectormember; and m eans'ior moving the housing in such direction as to partially raise the assembled members from'the workholder through the agency of the ejector.

JOHN QjHoLMEs.

WILLIAM H. ROBERTS.

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