Cam mechanism with side pressing function

Abstract

The invention discloses an inclined wedge mechanism with a lateral material pressing function. The inclined wedge mechanism with the lateral material pressing function comprises an upper die seat, an inclined wedge body and a lower die seat, wherein the bottom of the upper die seat is provided with a nitrogen spring; a safety hook and a safety bolt penetrate through a through hole in the upper die seat, and then are fixedly connected with inclined wedge body; the inclined wedge body is provided with a material pressing core, a punching head upper die and a trimming knife; the material pressing core cooperates, in a sliding manner, with a guide post mounted on the inclined wedge body; the top of the lower die seat is provided with a driving block and a lower die; the driving block cooperates with the inclined wedge body in the sliding manner; and the lower die cooperates with the punching head upper die and the trimming knife. By using the inclined wedge mechanism with the lateral material pressing function, a material pressing problem that a position cannot be corrected and punched forwards can be solved; and a sheet metal component is prevented from generating profile change due to trimming and hole punching, so as to improve the welding and assembly precision of a whole car.

Description

technical field [0001] The invention relates to a wedge mechanism, in particular to a wedge mechanism with a side pressing function. Background technique [0002] In order to meet the needs of various aspects such as shape and function, automobile sheet metal parts often have very complicated shapes. The holes made on complex shapes are often the prerequisites to ensure the smooth installation of various key parts of the car, and the holes made on complex profiles have their own particularity. Therefore, how to ensure the accuracy of these holes is the key to ensure the welding accuracy of the whole vehicle. [0003] The use of wedges is a common means to solve complex hole positions of complex stamping parts. The oblique wedge mechanism solves the punching problem that the positive punching position cannot be adopted through the cooperation and angle conversion between the upper drive block, the lower drive block and the slider. When the positive punching position cannot...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a wedge mechanism with a side pressing function to solve the deficiencies in the prior art. It can effectively solve the problem of pressing materials that cannot be trimmed in the forward direction, and prevent sheet metal parts from being punched due to edge trimming. The shape changes due to holes, thereby improving the welding and assembly accuracy of the whole vehicle

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