Claims
- 1. A parts stamper which comprises:
- a body having a yoke structure defined at one end by a pair of spaced apart wall members and an actuator at an opposite end, each of the pair of spaced apart wall members being provided with an elongate through-slot;
- a pair of opposable jaw members, each jaw member including a cam roller bearing at one end and a tool seat at an opposite end;
- a cam element which contacts the cam roller bearings of the pair of jaw members;
- a cam pin that is received in the cam element with opposite ends of the cam pin extending into the elongate through-slots; and
- a linkage structure driven by the actuator and coupled to the cam element.
- 2. A parts stamper according to claim 1, wherein the cam element comprises two cam surfaces.
- 3. A parts stamper according to claim 1, wherein the two cam surfaces of the cam element are symmetrical.
- 4. A parts stamper according to claim 1, wherein the two cam surfaces of the cam element are asymmetrical.
- 5. A parts stamper according to claim 1, further comprising an elongate bushing in each of the elongate through-slots which receive the opposed ends of the cam pin.
- 6. A parts stamper according to claim 1, further comprising spring elements which bias the jaw members into an open position.
- 7. A parts stamper according to claim 6, further comprising spring covers which cover the spring elements and secure the spring elements in position.
- 8. A parts stamper according to claim 7, wherein the spring covers further extend along opposed sides of the yoke structure and protect the jaw members.
- 9. A parts stamper according to claim 1, further comprising jaw pivot braces which brace against stresses that are transferred between the jaw members and yoke structure.
- 10. A parts stamper according to claim 1, further comprising a mounting bracket.
- 11. A parts stamper according to claim 10, wherein the mounting bracket bolts to the body of the parts stamper.
- 12. A parts stamper according to claim 11, wherein the mounting bracket bolts around the body of the parts stamper.
- 13. A parts stamper according to claim 1, further comprising an elongated detent element which prevents the jaw members from moving.
- 14. A parts stamper according to claim 13 wherein the body and at least one of the pair of opposable jaw members include through-holes for receiving the elongated detent element.
- 15. A parts stamper according to claim 1, wherein each of the pair of opposable jaw members comprise a tool seat.
- 16. A parts stamper according to claim 15, wherein the tool seats are recessed.
- 17. A parts stamper according to claim 16, further comprising a tip located in the tool seat of each jaw member.
- 18. A parts stamper according to claim 17, wherein the tips comprise an anvil and a number backing plate.
- 19. A parts stamper according to claim 1, wherein one of the pair of opposable jaw members is stationary.
- 20. A parts stamper which comprises:
- a body having a yoke structure defined at one end by a pair of spaced apart wall members and an actuator at an opposite end, each of the pair of spaced apart wall members being provided with an elongate through-slot;
- a pair of jaw members having tool seats on one end, including at least on pivotal jaw member which includes a cam roller bearing at an opposite end from the tool seat;
- a cam element which contacts each cam roller bearing of the pair of jaw members;
- a cam pin that is received in the cam element with opposite ends of the cam pin extending into the elongate through-slots; and
- a linkage structure driven by the actuator and couple to the cam element.
- 21. A parts stamper which comprises:
- a body having a yoke structure defined at one end by a pair of spaced apart wall members and an actuator at an opposite end;
- a pair of opposable jaw members, each jaw member including a cam roller bearing at one end, a tool seat at an opposite end, and a spring receiving hole on an opposed side from the tool seat;
- a cam element which contacts the cam roller bearings of the pair of jaw members; and
- a linkage structure driven by the actuator and coupled to the cam element.
- 22. A parts stamper which comprises:
- a body having a yoke structure defined at one end by a pair of spaced apart wall members and an actuator at an opposite end;
- a pair of opposable jaw members, each jaw member including a cam roller bearing at one end and a tool seat at an opposite end, the pair of jaw members having opposed surfaces which face one another and outer surfaces on opposite sides thereof;
- a pair of spring elements, each one of the pair of spring elements positioned adjacent an outer surface of one of the pair of opposable jaw members so as to bias the jaw members into an open position;
- a cam element which contacts the cam roller bearings of the pair of jaw members; and
- a linkage structure driven by the actuator and coupled to the cam element.
- 23. A parts stamper which comprises:
- a body having a yoke structure defined at one end by a pair of spaced apart wall members and an actuator at an opposite end;
- a pair of opposable jaw members, each jaw member including a single cam roller bearing at one end and a tool seat at an opposite end;
- a cam element having single opposed planar surfaces which contact the single cam roller bearings of the pair of jaw members; and
- a linkage structure driven by the actuator and coupled to the cam element.
RELATED APPLICATION
The present application is based upon U.S. Provisional patent application Ser. No. 60/069,970, filed Dec. 18, 1997, the complete disclosure of which is hereby expressly incorporated by reference.
US Referenced Citations (10)