US2413270A

US2413270A - Movable anvil riveting machine

Info

Publication number: US2413270A
Application number: US525170A
Authority: US
Inventors: Loyd A Ward; Eben D Taylor
Original assignee: TOMKINS JOHNSON CO
Current assignee: TOMKINS JOHNSON CO
Priority date: 1938-02-28
Filing date: 1944-03-06
Publication date: 1946-12-24
Anticipated expiration: 1963-12-24

Description

D. 24, 1946. L, A. WARD Er AL 413370 MOVABLE ANVIL RIVETING MACHINE Original Filed Feb. 28, 1938 ea Ev' L82 eq S24 Y S y eq 6H I .Y el I, je@ l I. Q7 565 65L :Q2/67 $77 G2 Ly/ jez f,- (jme/rm Kwik N@ .Lm/U A. Xxx/HRM j@ -J EEE/v L7. TA YLUR ao: mam

Patented Dec. 24, 1946 MOVABLE ANVIL RIVETING MACHINE Loyd A. Ward, Detroit, and Eben D. Taylor, Jackson, Mich., ass'gnors to Tomkins-Johnson Company, Jackson, Mich., a corporation of Michigan Original application February 28, 1938, Serial No.

192,946, now Patent No. 2,360,991, dated October 24, 1944.

Divided and this application March 6, 1944, Serial No. 525,170

(Cl. 'X8-48) 1 Claim.

This application is a division of our application Serial No. 192,946, led February 28, 1938, now Patent No. 2,360,991, granted October 24, 1944, and relates to riveting machines and the like, and more particularly to such a machine having a movable anvil.

In riveting it is often desirable to dispose a rivet or other upsettable member in supported relation to an anvil so that the work may be disposed over the upsettable member and the upsettable member headed up. Numerous structures have been developed for automatically presenting an upsettable member in such a manner that the Work may be placed over the same and the upsettable member immediately upset. Various difficulties have been met, such as the use of too many moving parts for economic manufacture or operation or the use of structures which do not lrigidly support an upsettable member for receiving the work and being acted upon by the set. I'he present invention contemplates the use of a movable anvil which may be alternately moved from a position in alignment with the upsettable member feedingr means to a position in co-operating relation With the set and back again.

An object of the invention is to provide a riveting machine or the like having an anvil which is laterally movable with respect to the set.

Another object of the invention is to provide a riveting machine or the 1ike having a movable anvil arranged to clamp therein an upsettable member which presents the same beneath the set for being acted upon thereby.

A still further object of the invention is to provide a riveting machine or the like having an anvil moving from a station for presenting an upsettable member to the anvil, to a second station in operative relation with the rivet set, together with means controlled by the anvil moving means for controlling the feeding of the upsettable members to the anvil.

These and other objects will be apparent from the following specification When taken from the accompanying drawing,I in which Fig. 1 is a partial vertical section of the present invention,

Fig. 2 is a partial plan view of the invention disclosed in Fig. 1, and

Fig. 3 is a section on line III-III of Fig. 2.

In the form of the invention illustrated in the drawing, a laterally movable anvil 60 is slidably disposed on the base 6I and guided by overhanging members 62 secured to sides of the base l. The anvil 60, as shown in Fig. 3, tapers upwardly to provide at the top a seat just wide enough to receive an upsettable member 63. The upsettable member 63 is supported in position on the top of the anvil 6I by jaws 64. The jaws 64 are provided with shank portions 65, which are secured by screws 66 to blocks 61 secured to the anvil'by screws 68. The spring metal Shanks are provided with Va set, which urges the jaws 64 against the sides of the anvil 60 and at the same time against the upsettable member 63, which is disposed between the jaws 64. Leaf springs 69 are also secured by the screws 66 to the blocks 61 to reinforce the action of the Shanks 65.

The anvil 60 is reciprocated by a rod 14, which is operated by a suitable power source but preferably by a piston and cylinder provided with controls such as disclosed in the patent issued to Robert C. Hoyt, No. 2,176,008, granted October 10, 1939. LeftWard movement of the anvil 60, as viewed in Fig. 1, is limited by a shoulder 15 engaging with a plate 16 secured to the base 6l.

Upsettable members are fed from a suitable hopper similar to the hopper I8 disclosed in our aforesaid application, Serial No. 192,946, to an inclined chute 11. Upsettable members in the chute 11 are held near the lower` end thereof by a nose 18 comprising a portion of selector mechanism 19. The selector mechanism 19 comprises, in addition to the nose 18, a stop 80, and is slidable in a horizontal channel 8l in the inclined face of the supporting block 82.

It will be observed from Fig. 2 that the nose 18 and the stop of the selector 19 overlie the chute 11, the latter being secured to the supporting block 82, while it is the lower portion of the selector 19 which is disposed in the channel 8|.

The selector 19 is normally urged to the right, as viewed in Figs. 1 and 2, by a cantilever leaf spring 83 secured to a frame portion 84 and disposed in a slot 85 in the selector 19, Movement of the selector 19 to the left is provided by a stop 36 secured to and projecting upwardly from the rod 14. The free end of the spring 83 is disposed in the path of the stop 86 for engagement thereby when the anvil 69 is moved to the left to move the leaf spring 83 against the opposite side of the slot 85 and thus to move the selector 19 to the left.

As shown in Figs. 1 and 2, there is an upsettable member 63 on the anvil 60 in co-operating relation with the set 81 and another upsettable member at the extreme bottom of the chute 11, supported there by a stop 88 and by an extension 89 secured to the anvil 60 by screws 90. The anvil extension 89 in the form of a cantilever bar provides a seat for the upsettable member against the stop 88. In this position the upsettable member is in the path of the clamping jaws '84.

After the work has been disposed over the upsettable member83 on the anvil 60 land the set 81 has upset the upsettable mem-ber 63, the aforesaid control is manually actuated to move the anvil 60 to the right. the right, the anvil extension 89 moves with it, the upsettable member at the bottom of the chute 11, sliding on-its surface. The clamping jaws 64 are provided with guiding edges 9| and curved active portions 92, which engage the head of the upsettable member. Thus, as the anvil 60 is moved to the right, the upsettable member heldv the jaws E4 an upsettable member from theA bottom of the chute 11, it is automatically returned by mechanism, such as disclosed in the aforesaid Hoyt patent, into co-operating relation with the set 81, carrying with it the upsettable member between the jaws 64.

When the anvil 68 is in its extreme right position, the stop 89 has moved away from the leaf spring 83, which in turn, due to its initial set, has moved the selector 19 to the right, moving the nose 18 away from the lowest upsettable member in the chute 11 and permitting the upsettable members to drop down the chute 11 against the stop V8i), which has moved across the path of movement of the upsettable members in the chute 11. When the stop 86 again engages the free end of the leaf spring 83 on the return movement of the anvil 60 into co-operating relation with the set 81, the selector 19 is moved toward the left, projecting the nose 18 between the rivet 'immediately against the stop 80 and the one next As the anvil 50 moves to' to it. The nose 18 thus acts to stop downward movement of all the upsettable members in the chute 11 except the one that was immediately next the stop 80. As the nose 18 moves to the left, the stop 8U also moves to the left and permits the upsettable member which was next to it to slide down the chute 11 into position against Ythe stop 88 and resting on the anvil extension 89 in position to be transferred to the top of the anvil between the jaws S4 the next time the anvil moves to the right.

As an example of a change that may be made, the selector 19 disclosed in Figs. 1 and 2 may be reversed so that an upsettable member is selected from the chute 11 upon the movement of the anvil away from co-operating relation with the set rather than upon the movement of the anvil toward co-operating relation with the set, as is disclosed.

Having thus described our invention, what we desire to secure by Letters Patent and claim is:

A machine of the character described, comprising a laterally movable anvil having rivet clamping means associated therewith, said rivet clamping means being movable with said anvil, a set, an extension from said anvil for upsettable members, means to dispose an upsettable member on said anvil extension, means including said anvil extension to support upsettable members in the path of movement of said anvil and rivet clamping means, said rivet clamping means having means to guide an upsettable member disposed as aforesaid into clamping relation with said clamping means as said anvil and rivet clamping means move laterally away from said set, and means to move said anvil and upsettable member into co-operating relation with said set.

LOYD A. WARD. EBEN D. TAYLOR.