Position-adjustable inner plate positioning mechanism for stamping parts in cold-punching and edge-coating processes

Abstract

The invention discloses a position-adjustable inner plate positioning mechanism for stamping parts in cold-punching and edge-coating processes. The position-adjustable inner plate positioning mechanism comprises a transverse L-shaped adjusting base which is mounted at the lower end of an upper die, a vertical Z-shaped positioning pin rack which can slightly adjust the position relative to the adjusting base, an adjusting gasket which is arranged between an adjusting block and a positioning pin base, and a tightening screw rod which is arranged between the adjusting block and the positioning pin base, wherein a transverse part of a Z-shaped upper end of the positioning pin base is positioned in an inner corner of the L-shaped adjusting block; the adjusting block is fixed to the lower end face of the upper die by using a screw rod; the tightening screw rod which transversely passes through the adjusting block and is screwed into the positioning pin base can be used for tightening the positioning pin base on the adjusting block; a transverse part of a Z-shaped lower end of the positioning pin base is mounted on an inner plate positioning pin which is pointed downwards; and a spring plunger is mounted aside the inner plate positioning pin. The position-adjustable inner plate positioning mechanism disclosed by the invention has the advantages that the precision of opposite positionsof the stamping parts is ensured, the situations that malposition of an inner plate and scrapping of workpieces are caused when deviation of the position of the positioning pin occurs are prevented,and the problem that the parts are difficultly taken after an edge-coating operation is carried out completely is solved and the debugging difficulty of debugging personnel is reduced.

Description

technical field [0001] The invention belongs to the field of mechanical equipment, and in particular relates to a positioning device for a processed piece in a cold stamping hemming die of a sheet metal piece. Background technique [0002] The hemming process of automobile sheet metal parts is generally used for the inner and outer panels of automobile assembly parts (usually opening and closing parts, sometimes including roof covers with sunroofs, such as automobile doors). After the upper flanging or the lower flanging is flattened by bending, the assembly process that connects the inner and outer plates of the part, and the edge wrapping process figure 1 . The mold that completes this process is called a hemming mold. It can be seen from the schematic diagram that in the mold production process, the inner plate A and the outer plate B are stacked together, the inner plate is on top and the outer plate is on the bottom. In order to ensure the relative position accuracy ...

AI Technical Summary

Problems solved by technology

In this positioning method, after the positioning pin is installed, it will cause difficulties for the commissioning personnel to adjust the position of the positioning pin.

If the position of the positioning pin is slightly deviated, the inner plate will be misaligned and the workpiece will be severely scratched

Images