US1360065A - Riveting-machine - Google Patents

Description

J. WEINER.

RIVETING MACHINE.

APPLICATION FILED 05c. 11, 1919.

3 SHEE-TSSHEET I.

*1 lwLll INEMTOR Mn Mama,

ATTORNEYS J. WEINER.

mvnme MACHINE.

APPLICATION FILED'DEC.11,I919.

1,360,065. Patented Nov. 23, 1920.

3 SHEETS-SHEET 3.

INVENTOR fical 71652062;

a d j b/ ATTO R N EYS I UNITED STATES PATENT OFFICE.

JACOB WEINER, 0F NEWARK, NEW JERSEY.

, RIVIETING-MACHINE.

Application filed December 11, LL19. Serial m. 344,243.

To all whom it may concern Be it known that L-JAools WEINER, a citizen of the United States, residing at Newark, in the countyof Essex and State of New Jersey, have invented certain new and useful Improvements in Riveting-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to characters of reference markedthereon, which form a part of this specification. i

The present invention relates, generally, to improvements in riveting machines; and

the invention has reference, more particu-' provide a novel means for feeding and guiding rivets to .the operative parts of the machine, and hold the same under proper con trol at alltimes.

Other objects of the present invention, not at this time more particularly enumerated, will be clearly understood from the following detailed description of the same.

\Vith the various objects of the invention in view, the same conslsts, primarily, 1n the novel construction of riveting machme hereinafter set forth; and, the invention con-' The invention is clearly illustrated in the accompanying drawings, in which Figure 1 is a front elevation of one embodiment of the novel riveting machine made according to the principles of my present invention.

Fig. 2 is an end elevation of the left end of the riveting machine; and Fig. 3 is an end elevation of the right end of said machlne.

Fig. 4 is a detail longitudinal vertical section of the riveting-mechanism of the machine, drawn on an enlarged scale, and showing the mechanisms in normal initial posit1on; F1'g. 5 is a similar View, showing the position of the mechanisms after the operat1on of piercing the rivets through the work takes place; and Fig. 6 is a similar view, showing the position of the mechanisms after the operation of punching'the rivets en%, to7l1ead the same, takes place.

1g. 7-7 in said Fig. 4; Fig. 8 is a similar transverse section taken on line 8-8 in said Fig. 5; and Fig. 9 is a similar transverse section taken on line 9-9 in said Fig. 6.

Fig. 10 is a detail transverse section taken on line 10--10 in said Fig. 5; and Fig. 11 is a detail horizontal section taken on line 11-11 in said Fig. 4.

Similar characters of reference are employed in all of the hereinabove described views to indicate corresponding parts.

Referring now to said drawings, the reference-character 1 indicates a left end standard or supporting frame, and 2 indicates a right end standard or supporting frame. Secured by its respective ends to the respective standards 1 and 2, so as to extend longitudinally therebetween is a carrier bar is a transverse section taken on line 3, in which are supported at proper intervals a gang of longitudinally spaced die devices to be subsequently more particularly described. The number and spacing of said die devices may be varied at will according to the character of work desired to be per formed upon the machine.

Rigidly and firmly secured tosaid standard 1 is one end of an anvil-bar 4, which extends beneath said.carrier bar 3, in longitudinal parallel and. vertical alinement therewith, and spaced downward therefrom. The right end standard or supporting frame 2 is formed with an open space 5, beneath said carrier bar 3, into which the right free end of said anvil bar extends. Pivotally connected with said standard'2, at the lower I end of said open space 5, is a supporting dog 6, having at its upper end a seat 7 bounded at its outer side with a stop lug 8, and provided at its inner side with a yieldableor depressible spring-actuated latch-piece 9.

Said supporting dog 6 may also be provided with a laterally projecting handle member 10 as an aid to "the manipulation of the same. Said supporting dog 6 may be swung downwardly, so as to leave the free end of said anvil bar unobstructed, whereby the work to be operated upon may be slipped endwise on and off of the said anvil bar. Before operating the machine said supporting dog 6 is swung upwardly to vertical position, so that its seat 7 and stop lug 8 embrace the lower side of said anvil bar end in supporting relation thereto, whereby said anvil bar is rigidly supported at its free end, as well as at its fixed end, during the operation of the machine. The latch-piece 9 will yield downwardly when passed beneath the free end of said anvil-bar. but will be projected upwardly to engage the inner side thereof when the supporting dog is in fully raised position, thereby holding the latter against accidental downwardly swinging disengagement with said anvil bar.

The above mentioned die devices supported by the carrier bar 3 are all of the same construction,.so that detail description of one will sufiice for all. Each die device comprises a piercing die 11, vertically movable in a guide opening 12 provided in said carrier bar 3. Said piercing die is provided with a closed bottom end 13 having a centrally disposed die opening 14, slightly larger in diameter than the diameter of the shanks of the rivets employed with the machine. The interior of said piercing die is chambered to provide a vertical guideway 15 extending above said closed bottom end. Vertically slidable in said guideway 15 is a heading-die 16 provided at its lower end with a punch member 17 of a diameter less than that of said die opening 14, and vertically alined with the latter. The upper end of said heading-die normally projects slightly beyond the upper end of said piercing die 11, and is normally maintained and returned to such initial position by means of a light spring 18 disposed between the closed bottom end 13 of said piercing die 11 and the shoulder 19 formed at the juncture of said punch member 17 with said heading die 16. Secured upon the upper surface of said carrier bar 3 are spring fingers 20, the free ends of which are engaged under laterally projecting lugs 21 connected 'with the upper end of said piercing die 11,

, whereby the latter is held in raised .normal initial position.

The said anvil bar 4 is provided in its upper surface with a longitudinally extending. groove or channel 22, which is alined with the gang of die devices supported by whgsaid carrier bar 3. Rigidly secured to said anvil bar t are series of anvil pieces 23, one for each set of die devices, the same being vertically alined with and beneath said die devices. The upper ends of said anvil pieces project upwardly from the bottom of said groove or channel 22. Associated with said anvil pieces is a depressible rivet rack comprising a bottom member 21- provided with openings 25 through which said anvil pieces extend. Each anvil piece is provided at its upper end with a chamt'ered shoulder 26, the openings 25 of said bottom member being correspondingly chamt'ered to receive said shoulders 26, so that when in raised position the rivet supporting surface of said bottom member is flush with the upper end of said anvil pieces. Compression springs 27 coiled about said anvil pieces, between the under side of said bottom member and the bottom of said groove or channel 22, normally hold said bottom member in said raised position. Said bottom member 2a is provided at each side with side walls 28 having inwardly projecting lips 29 spaced above said bottom member, thus providing a longitudinal guide way 30 for the bases 31 of the rivets employed with the machine. and serving to hold said rivets in a train for movement therethrough and into operative supported position upon the anvil pieces 23. The shanks 32 of said rivets project upwardly out of the guideway 30 thus formed. The

said side walls 28 of the bottom members,

and their lips 29 are cut away at points laterally opposite said anvil pieces. so that in the space thus provided yieldable or resilient spring fingers 33 may be secured to said bottom member to project upwardly on each side thereof, with their free ends engaging the peripheries of the rivet bases 31 which are registered over said anvil pieces in supported relation thereto.

The reference character 34 indicates a rivet feed-chute which may lead downwardly from a rivet hopper (not shown). The lower end of said feed-chute is curved. as at 35, to bring the discharge end thereof into alinement with said depressible rivet rack. when the latter is in normally raised position, so that rivets fed down through said chute will enter the rivet rack and move onwardly therethrough. In order to shut the discharge end of said chute against escape of rivets when said rivet rack is in do pressed or lowered position in said. channel or groove 22, the inner end of said rivet rack is provided with an upwardly projecting transversely disposed gate member 36, which is moved into closed relation to the discharge end of said chute as the rivet rack moves downwardly, thus obstructing the outward movementof rivets from said chute.

Journaled in suitable bearings 37, with which said standards 1 and 2 are provided. so as to be rotatably mounted above and alined with said die devices supported by said carrier bar 3, is a cam shaft 38, which is provided with cams for operating at proper times said die devices. Said cams comprise piercing die depressing cams 39 and heading die depressing cams 40. The cams 39 are positioned or off-set relative to the cams 40, so that they act on the piercing dies first, following which operation the cams 40 engage and operate the heading dies.

Preferably I arrange the cams 39 in pairs as shown, and intermediate the members of each pair of cams 39 are positioned the cams 40. My preference for such arrangement arises by reason of the fact that the members of each pair of cams 39 are thus disposed to straddle the heading die, and bear down equally, on the sides of said piercing die, so that all tendency to side thrust of the latter die in its guide is avoided. I do not limit myself to this arrangement, however, since I can use but one cam 39, if it is so desired.

Power may be applied to said cam shaft to produce either properly timed revolutions of the same, or rocking oscillations of the same, for carrying the cams into operative relation to the die devices.

In the drawings I have shown the machine arranged with means for operating the cam shaft by foot-power. To this end I provide a foot-treadle 41, normally held in raised position by the spring 42. Pivoted on a journal stud 43 connected with the standard 1 is a segmental gear 44 provided with a lever arm 45. Interconnecting said lever arm 45 with said foot-treadle 41 is a .link bar 46. Secured upon said cam-shaft 38 is a spur gear 47 with which said se mental gear 44 is ope'ratively meshed. ownward pressure upon the foot-treadle 41 is transmitted through said link bar 46 to said lever arm 45 whereby said segmental gear is turned to rotate said spur gear 47, thereby rocking said cam shaft 38 to carry its cams 39 and 40 into 0 erative engagement with the die devices. hen the foot is released from the foot trea dle 41 the spring 42 will return, through the reverse move ments of the above described transmission means, the cam shaft and its cams to normal initial position. of course, I do not limit myself necessarily to the use ofythe foot-power means of operating said camshaft 38, but conceive my invention to include any sort of means for applying operative power, derived either from foot, hand or mechanical source, to said camshaft 38.

The machine operates as follows The work 48 (m the drawings the same being illustrated in the form of a length of sheet metal pipe) is arranged with its overlapping edges, which are to be riveted together, disposed over the anvil bar 4, and

extending over the line of rivets carried by i came 39-into downwardly thrusting engagement with the piercing dies 11, whereby the bottom ends 13 of the latter are pushed downwardly u on the work 48, with the die openings 14 allned over the rivet shanks of those rivets which are supported and immovably backed by said anvil pieces 23. A continued downward movement of the cams 39 forces the piercing dies 11 farther down, and by backing the work when the same is engaged by the shanks of the said immovable rivets, causes the said shanks to pierce through the work as shown in Figs. 5 and 8 of the drawings. Since the rivets supported by the bottom member of the rivet rack are also engaged by the work, the downward movement of the work during the piercing operation, causes the rivet rack to be depressed against the tension of the springs 27, also as shown in Figs. 5 and 8. The spring fingers 33 yield, during the downward movement of said rivet rack, so that the same easily spring by and are withdrawn from their guarding relation to those rivets supported by said anvil pieces 23.

\Vhen the piercing operation is completed the cams 39, underthe continued movement of the cam shaft 38 pass away from the piercing dies 11, permitting the latter to rise under the pressure of the spring fingers 20, and as the said piercing dies so rise, the cams 40 come into engagement with the heading dies 16, thrusting the same downward to carry the punch member 17 into engagement with the exposed ends of the rivet shanks, thereby crushing down the latter to head the same in riveted over re lation to the work, all as shown in Figs. 6 and 9 of the drawings. In order to )ermit said cams 40 to clear said piercing (ies 11 during the operative movement of the former, the sides of the latter are cut away as at 49 to permit the free unobstructed operative engagement of the cams 40 with the upper ends of the heading dies 16.

Either a reverse or continued movement of the "cam shaft 38 will return the same and its cams 39 and 40 to normal'initial position, whereupon the die devices will resome normal positions, and the work 48 may be removed from the machine. In the former case the cams may be permitted to pass beyond the dies during the operative forward movement or stroke so that the dies will lift, whereupon the work may be removed prior to the reverse movement of the cams.

When the rivet rack returns to normal raised position, so that its bottom member 24 is again brought flush with the tops of said anvil pieces 23, and communication is again established between the rivet rack and the rivet chute, the weight of rivets in the latter will serve to slide along the train of rivets in the rivet rack, to close the gaps therein left by reason of the removal of the rivets engaged with the work, so'that new rivets are thus positioned upon and in su ported relation to the anvil piece 23, rea y for the next operation of the machine.

While I have shown my novel riveting machine equipped with a plurality of sets of die devices, 1 do not necessarily limit myself to their use in such gangs, since I may also adapt the principles of their operation and construction to a machine in which either one or more of such sets of die devices and operating cams therefor are employecl.

.I am aware that some changes may be made in the several arrangements and combinations of the devices and parts, as well as in the details of the construction of the same, without departing from the scope of my present invention as above described. and as defined in the appended claims.

- Hence, I do not limit my invention to the exact arrangements and combinations of devices and parts set forth in the above specification, nor do I confine myself to the exact details ofthe construction of said parts as illustrated in the accompanying drawings.

I claim 1. In a machine of the kind described, a fixed carrier bar, a piercing die vertically movable in said carrier bar, a heading die associated with said piercing die for independent vertical movement relative to the latter, means for holding said dies in normally raised positions, an anvil bar beneath said carrier bar, an anvil piece fixed to said anvil bar in vertical alinement with said dies, means for feeding rivets to and upon said anvil piece, means for first operating said piercing die and then said heading die, said means comprising a shaft above said carrier bar, a piercing die operating cam, a heading die operating cam, said cams. being mounted on and operated by said shaft so that the operative stroke of the latter succeeds the operative stroke of the former, and means for operating said shaft.

2. In a machine of the kind described, a fixed carrier bar, a piercing die vertically movable in said carrier bar, a heading die associated telescopically with said piercing die for independent vertical movement relative to the latter, means for holding said dies in normally raised position, an anvil bar alined beneath said-carrier bar, said anvil bar having a channel in its upper surface, an anvil piece fixed to said anvil bar in vertical alinement with said dies having its upper end projecting upwardly in said channel, a depressible rivet rack extending through said channel having an opening to receive the upper end of said anvil piece, spring means for holding said rivet rack in raised position, the bottom of said rivet rack being flush with the supporting surface of said anvil piece when said rivet rack is in raised position, means for feeding rivets to and through said rack into supported relation to said anvil piece, and means for first operating said piercing die and then said heading die.

3. In a machine of the kind described, a fixed carrier bar, a piercing die vertically movable in said carrier bar, a heading die associated telescopically with said piercing die for independent vertical movement relative to the latter, means for holding said dies in normally raised position, an anvil bar alined beneath said carrier bar, said anvil bar having a channel in its upper surface, an anvil piece fixed to said anvil bar in vertical alinement with said dies having its upper end projecting upwardly in said channel, a depressible rivet rack extending through said channel having an opening to receive the upper end of said anvil piece, spring means for holding said rivet rack in raised position, the bottom of said rivet rack being flush with the supporting surface of said anvil piece when said rivet rack is in raised position, means for feeding rivets to and through said rack into supported relation to said anvil piece, and means for first operating said piercing die and then said heading die, said means comprising a shaft above said carrier bar, a plercing die operating cam, a heading die operating cam, said cams being mounted on and operated by said shaft so that the operative stroke of the latter succeeds the operative stroke of the former, and means for operating said shaft.

4 In a machine of the kind described, a fixed carrier bar, a piercing die vertically movable in said carrier bar, a heading die associated telescopically with said piercing die for independent vertical movement relative to the latter, means for holding said dies in normally raised position, an anvil bar alined beneath said carrier bar having a channel in its upper surface, an anvil piece fixed to said anvil bar in vertical alinement with said dies having its upper end projecting upwardly in said channel, a depressible rivet rack extending through said channel having an opening to receive the upper end of said anvil piece, spring means for holding said rivet rack in raised position, the bottom of said rivet rack being flush with the supporting surface of said anvil piece when said rivet rack is in raised position, said rivet rack being adapted to support a train of rivets movable therein to position the same successively in supported relation to said anvil piece, the sides of said rivet rack being cut away at points opposite said anvil piece to form yieldable guard lingers connected with said rivet rack .and located in said cut away portions thereof so as to prevent lat eral displacement of the rivet supported'by said anvil-piece, means for feeding rivets into said rivet rack, and means for first operating said piercing die and then said heading die.

5. In a machine of the kind described, a fixed carrier bar, a piercing die vertically movable in said carrier bar, a heading die associated telescopically with said piercing die for independent vertical movement relative to the latter, means for holding said dies in normally raised position, an anvil bar a-lined beneath'said carrier bar having a channel in its upper surface, an anvil piece fixed to said anvil bar in vertical alinement with said dies having its upper end projecting upwardly in said channel, a depressible rivet rack extending through said channel having an .openingto receive the upper end of said anvil piece, spring means for holding said rivet rack in raised position, the bottom of said rivet rack being flush with the supporting surface of said anvil piece when said rivet rack is in raised-position, said rivet rack being adapted to "support a train of 'rivets'movable therein to position the same successively in supported relation to said anvil piece, the sides of said rivet rack being cut away at points opposite said anvil piece a to form yieldable guard fingers connected with said rivet rack and located in said cut away portions thereof so as to prevent lateral displacement of the rivet supported by said anvil piece, means for feedm into said rivet rack, and means for rst o crating said piercing die and then said head ing die, said means comprising a shaft above sald carrier bar, a piercing die operating cam, a headin die operating cam, said cams being mounte on and operated by said shaft so that the operative stroke of the latter succeeds the operative stroke of the former, and means for operating said shaft.

- 6. In a machine of the kind described, a fixed carrier bar, a movable in said carrier bar, a heading die associated telescopically with said piercing die for independent vertical movement relative to the latter, means for holding said dies in normally raised position, an anvil bar alined beneath said carrier bar having a channel in its upper surface, an anvil piece fixed to said anvil bar in vertical alinement with said dies havin its upper end projecting upwardly in sai channel, a depressible rivet rack extending through said channel having an opening to receive the upper end of said anvil piece, spring means for holding I of rivets movable thereinto position the same successively in supported relation to said anvil piece, the sides of said rivet rack rivets piercing die verticallybeing cut away at points opposite said anvil piece to form yieldable guard fingers connected with said rivet rack and located in said cut away portions thereof so as to prevent lateral displacement of the rivet supported by said anvil piece, an upwardly extending rivet chute, said rivet chute having a curved discharge end normally communieating with the receiving end of said rivet rack, gate means connected with the receiving end of said rivet rack adapted to move intoclosed relation to said discharge end of said rivet chute when said rivet rack is depressed, and means for first opera-ting said piereiing die and then operating said headin ie.

In a machine of the kind described, a fixed carrier bar, a piercing die vertically movable in said carrier bar, a heading die associated telescopically with said piercing die for independent vertical movement rela-' tive to the latter, means for holding said dies in normally raised position, an anvil bar alined beneath said carrier bar having a channel in its upper surface, an anvil plece fixed to said anvil bar in vertical alinement with said dies having its upper end projecting upwardly in said channel, a depressible rivet rack extending through said channel having an opening to receive the upper end of said anvil iece, spring means for olding said rivet rac in raised position, the bottom of said rivet rack being flush with the supporting surface of said anvil piece when said rivet rack is in raised position, said rivet rack being adapted to support a train of rivets movable therein to position the same successively in supported relation to said anvil piece, the sides of said rivet rack being cut away at oints opposite said anvil piece to form yie dable, guard fingers connected with said rivet rack and located in said cut away portions thereof so as to prevent lateral displacement of the rivet supported by said anvil piece, an upwardly extending rivet chute, said rivet chute having a curved discharge end normally communicating with the receiving end of said rivet rack, ate means connected with the receiving en of said rivet rack adapted to move into closed relation to said discharge end of said rivet chute when said rivet rack is depressed, and means for first operating said piercing die and then operating said heading die, said means comprising a shaft above said carrier bar, a piercing die operating cam, a heading die operating cam, said cams being mounte on and operated b said shaft so that the operative stroke 0 the latter succeeds the said carrier bar, said die devices comprising a piercing die and a heading die telescopically associated therewith for independent vertical movement relative thereto, spring means for holding said die devices in normally raised position, an anvil bar fixed by one end to one standard, means connected with the opposite standard in removable supporting relation to the opposite end of said anvil bar, a gang of anvil pieces fixed to said anvil bar in vertical alinement with said die devices, means for feeding rivets to and upon said anvil pieces, a cam shaft journaled in said standards to extend above said carrier bar, cam means on said cam shaft for first operating said piercing dies and then said heading dies, and means for operating said shaft.

9. In a machine of the kind described, supporting standards, a fixed carrier bar extending between said standards, a gang of die devices vertically movable relative to said carrier bar, said die devices comprising a piercing die and a heading die telescopically associated therewith for independent vertical movement relative thereto, spring means for holding said die devices in normally raised position, an anvil bar fixed by one end to one standard, means connected with the opposite standard in removable supporting relation to the opposite end of said anvil bar, said anvil bar having a longitudinal channel in its upper surface, a gang of anvil pieces fixed to said anvil bar in vertical alinement with said die devices having their upper ends projecting upwardly in said channel,a depressible rivet rack extending through said channel having openings to receive the upper ends of said anvil pieces, spring means for holding said rivet rack in raised position, the bottom of said rivet rack being flush with the supporting surfaces of said anvil pieces when said rivet rack is in raised position, said rivet rack being adapted to support a train of rivets movable therein to position certain of their number in supported relation upon said anvil pieces, means for holding said rivets so supported against lateral displacement, means for feeding rivets into said rivet rack, a cam shaft journaled in said standards to extend above said carrier bar, cam means on said shaft for first operating said piercing dies and then said heading dies, and means for operating said shaft.

10. In a machine of the kind described, supporting standards, a fixed carrier bar extending between said standards, a gang of die devices vertically movable relative to said carrier bar, said die devices comprising a, piercing die and a heading die telescopically associated therewith for independent vertical movement relative thereto, spring means for holding said die devices in normally raised position, an anvil bar fixed by one end to one standard, means connected with the opposite standard in removable supporting relation to the opposite end of sald anvil bar, said anvil bar having a longitudinal channel in its upper surface, a gang of anvil pieces fixed to said anvil bar in vertical almement with said die devices having their upper ends projecting upwardly in said channel, a depressible rivet rack extending through said channel having openings to receive the upper ends of said anvil pieces, spring means for holding said rivet rack in raised position, the bottom of said rivet' rack being flush with the supporting surfaces of said anvil pieces when said rivct 'ack is in raised position, said rivet rack being adapted to support a train of rivets movable therein to position certain of their number in supported relation upon said anvil pieces, means for holding said rivets so supported against lateral (llsplllttll'itlli, an upwardly extending rivet chute, said rivet chute having a curved discharge end normally communicating with the receiving end of said rivet rack, gate means connected with the receiving end of said rivet rack adapted to move into closed relation to said discharge end of said rivet chute when said rivet rack is depressed, a cam shaft journaled in said standards to extend above said carrier bar. cam means on said shaft for first operating said piercing dies and then said heading dies, and means for operating said shaft.

11. In a machine of the kind described, supporting standards, a fixed carrier bar extending between said standards, a gang of die devices vertically movable relative to said carrier bar, said die devices comprising a piercing die and a heading die telescopically associated therewith for independent vertical movement relative thereto, spring means for holding said die devices in normally raised position, an anvil bar fixed by one end to one standard, means connected with the opposite standard in removable supporting relation to the opposite end of said anvil bar, said anvil bar having a longitudinal channel in its upper surface, a gang of anvil pieces fixed to said anvil bar in vertical alinement with said die devices having their upper ends projecting upwardly in said channel, a depressible rivet rack extending through said channel having openings to receive the upper ends of said anvil pieces, spring means for holding said rivet rack in raised position, the bottom of said rivet rack being flush'with the supporting surfaces of said anvil pieces when said rivet rack is in raised position, said rivet rack being adapted to support a train of rivets movable therein to position certain of their number in supported relation upon said anvil pieces, means for holding said rivets so supported against lateral displacement, an u wardly extending rivet chute,

said rivet o ute having a curved discharge end normally communicating with the receiving end of said rivet rack, gate means connected with the receiving end of said rivet rack adapted to move into closedrelation to said discharge end of said rivet chute when said rivet rack is depressed, a cam shaft journaled in said standards to extend above said carrier bar, cam means on said shaft for first operating said piercing dies and then said heading dies, a foot treadle mounted in connection with said standards, and transmission means between said shaft and said foot treadle for o erating the former.

In testimony t at I claim the invention set forth above I have hereunto set my hand this 6th day of December 1919.

' JACOB WEINER.

Witnesses:

BARBARA Smnnnm, GEORGE D. RICHARDS.

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