A kind of stamping method of automobile sheet metal parts

Abstract

Disclosed is a punching method of an automobile sheet metal part. The punching method of the automobile sheet metal part comprises the steps that a sheet metal element is positioned on a female die ina positioning mode; a male die moves downwards driven by a punching machine; the male die and the female die are used for punching and forming the sheet metal element; a linkage mechanism drives a female die supporting mechanism and a male die supporting mechanism to be linked, and when punching forming is just finished, a female die supporting roller is supported at the joint position of the inclined surface and the bottom surface of the female die, and a male die supporting roller is supported at the joint position of the inclined surface and the top surface of the male die; an upper die base continues to move downwards driven by the punching machine, the female die supporting roller is separated from the bottom surface of the female die, the male die supporting roller is separated fromthe top surface of the male die, meanwhile, a retraction mechanism ejects the female die to be attached to a lower die base, the female die is separated from the sheet metal part, a male die retraction mechanism retracts the male die to be attached to the upper die base, and the male die is separated from the sheet metal part; and when the punch forming is finished and the upper die base does notmove upwards and if pressure detection points between the female die and the lower die base and between the male die and the upper die base are normal, the punching machine drives the male die to reset, and otherwise, the alarm is given. The method is suitable for producing the automobile sheet metal parts.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a stamping method for automobile sheet metal parts. Background technique [0002] Punching machine, also known as press, is a device for pressure processing materials. Its working principle is generally to drive the opening and closing of the punch and die under the action of stamping power, and then cut and punch the original parts in the mold. Hole, drawing and other processes to form stamping parts. Stamping dies are mainly used in cold stamping processing. It is a pressure processing method that uses a die installed on a press to apply pressure to the original at room temperature to cause separation or plastic deformation to obtain the required parts. [0003] At present, with the continuous development and progress of industrial production, in order to improve the quality of industrial products, stamping die production has also been widely used. Among them, in the automobile man...

AI Technical Summary

Problems solved by technology

And because the sheet metal part will produce strong tension when it is deformed, there will be a large friction force between the sheet metal part and the inner wall of the groove in the mold. Damage, affecting accuracy, and also affecting the handling of sheet metal parts after stamping

In addition, since the surface of the mold is prone to defects after a period of use, it is another difficult problem to detect and distinguish the damaged area

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