Patent ID: 6755070
Filing Date: 2004-06-29
Classification: B21D

Abstract:
A cam-type press system for forming a panel, comprising:an upper die and a lower die disposed for forming the panel therebetween; a formation pad mounted on a lower side of the upper die; an operational driver also mounted on the lower side of the upper die; a formation cam for realizing a cam operation by the lowering operation of the operational driver on the lower die; a cam base slidably mounted on the lower die, and securing the material panel together with the formation pad; a cam base steel mounted on the cam base corresponding to a height of the formation cam, the cam base steel performing a formation process on the material panel together with the formation cam; a cam slider mounted on the cam base through a linkage assembly such that the cam slider is able to move with respect to the cam base and vice versa, the formation cam being mounted at a predetermined location of the cam slider opposing the cam base steel, and the cam slider being linked with the operation of the operational driver to realize a cam operation; a first return assembly mounted within the cam base and contacting the lower die, the first return assembly exerting a biasing force to return the cam base to an initial position when displaced from the initial position; and a second return assembly mounted within the cam slider and contacting the lower die, the second return assembly exerting a biasing force to return the cam slider to an initial position when displaced from the initial position; wherein said linkage assembly comprises: a rack gear installed on the cam base along a direction of desired motion of the cam slider; rotating gears rotatably mounted to a bottom portion of the cam slider, the rotating gears being meshed with the rack gear of the cam base; and an actuating rod connected to the rotating gear and a side of the lower die through first and second pivot points.