Press device of multi cam type

Patent metadata

Field	Value
Publication number	US-11338347-B2
Application number	US-202017087909-A
Country	US
Kind code	B2
Filing date	Nov 3, 2020
Priority date	Jul 2, 2020
Publication date	May 24, 2022
Grant date	May 24, 2022

Abstract

A multi-directional multi-cam press device may include a cam base fixed to the lower mold, a first cam slide provided to slide forwards and backwards along a first direction of the cam base, at least a first punch unit provided in the first cam slide along a first direction, a cam drive fixed to an upper mold configured of moving in a vertical direction with respect to the lower mold, and making cam contact with the first cam slide, a second cam slide provided in the cam drive to move forwards and backwards in a second direction perpendicular to the first direction and in contact with the cam base side, and at least a second punch unit provided on the second cam slide along a second direction.

First claim

What is claimed is:

1. A multi-directional multi-cam press device, including:
a cam base fixed to a lower mold;
a first cam slide provided to slide forwards and backwards along a first direction of the cam base;
at least a first punch unit provided in the first cam slide along the first direction;
a cam drive fixed to an upper mold configured for moving in a vertical direction with respect to the lower mold, and making a contact with the first cam slide;
a second cam slide provided in the cam drive to move forwards and backwards in a second direction perpendicular to the first direction and in contact with a side of the cam base; and
at least a second punch unit provided on the second cam slide along the second direction.

2. The multi-directional multi-cam press device of claim 1 , further including:
a return spring unit connected to the cam base and the first cam slide in the first direction.

3. The multi-directional multi-cam press device of claim 2 , wherein the return spring unit includes a gas spring.

4. The multi-directional multi-cam press device of claim 2 , further including:
a return stopper provided on the cam base corresponding to the first cam slide and configured to limit a return position of the first cam slide.

5. The multi-directional multi-cam press device of claim 1 , wherein the cam base includes at least one main rail block which is mounted to be inclined downwardly from a rear side to a front side through a base inclined surface as an upper surface, and is slidably coupled with the first cam slide.

6. The multi-directional multi-cam press device of claim 5 , wherein the cam base includes a pair of sub-rail blocks provided on the base inclined surface with the main rail block interposed therebetween, and slidably coupled with the first cam slide.

7. The multi-directional multi-cam press device of claim 1 , wherein the first cam slide includes at least a driven cam plate mounted to be inclined downwardly from a front to a rear corresponding to the cam drive.

8. The multi-directional multi-cam press device of claim 7 , wherein the first cam slide includes a first guide plate fixed on one side surface and another side surface of the first cam slide and provided to be in contact with a first guide block provided on a first side and a second side of the cam base.

9. The multi-directional multi-cam press device of claim 7 , wherein the cam drive includes a driving cam plate provided to be in contact with the at least a driven cam plate.

10. The multi-directional multi-cam press device of claim 1 , wherein the first cam slide includes a first return support block fixed on at least one side thereof and slidably coupled to the cam drive.

11. The multi-directional multi-cam press device of claim 10 , wherein the cam drive includes a second return support block provided on a side surface corresponding to the first return support block and slidably coupled with the first return support block.

12. The multi-directional multi-cam press device of claim 1 , wherein the cam drive includes a second guide plate provided on a rear surface thereof and provided in contact with a second guide block provided on a rear side of the cam base.

13. The multi-directional multi-cam press device of claim 1 , wherein the cam drive includes a guide rail member which is provided to be inclined downwardly from one side to another side along the second direction from a rear side thereof and slidably couples with the second cam slide.

14. The multi-directional multi-cam press device of claim 13 , wherein the guide rail member includes:
first and second fixed end portions formed at one end portion and at another end portion of the guide rail member and fixed to a first side and a second side of the cam drive, respectively, and
a guide stopper formed at the fixed end portion of the one end portion and limiting a forward position of the second cam slide.

15. The multi-directional multi-cam press device of claim 14 , wherein the second cam slide has an engaging hole slidably coupled with the guide rail member, and slides between the first and second fixed end portions along the guide rail member.

16. The multi-directional multi-cam press device of claim 1 , further including:
a cam block provided on a base horizontal surface of an upper surface of the cam base, having a cam inclined surface inclined downwardly along the second direction of the second cam slide, and slidably coupled to a lower surface of the second cam slide.

17. The multi-directional multi-cam press device of claim 16 , wherein on the lower surface of the second cam slide, a cam groove for contacting with the cam block is formed.

18. The multi-directional multi-cam press device of claim 16 ,
wherein a guide groove is formed in the cam block along the second direction, and
wherein a guide protrusion slidably coupled to the guide groove is provided at a lower portion of the second cam slide.

19. The multi-directional multi-cam press device of claim 1 , wherein the at least a first punch unit and the at least a second punch unit include a pierce tool for piercing a panel material.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Lee Seho

Classifications

• B21D53/88

  other parts for vehicles, e.g. cowlings, mudguards · CPC title

• B21D19/084

  with linear cams, e.g. aerial cams · CPC title

• B30B1/40

  by wedge means · CPC title

• B21D28/325 Primary

  using cam or wedge mechanisms, e.g. aerial cams · CPC title

• B21D28/26 Primary

  in sheets or flat parts · CPC title