Stamping dies for side panels

Abstract

The invention discloses a side-surrounding outer plate stamping die capable of reasonably allocating the pressures on a forming die slide block and an edge-pressing die slide block. The side-surrounding outer plate stamping die comprises a forming die and an edge-pressing die, the movable die of the forming die and the movable die of the edge-pressing die are separately fixed to the forming die slide block and the edge-pressing die slide block, and the forming die slide block and the edge-pressing die slide block are driven by mutually independent driving units to carry out die closing and separating actions. Under the situation that the pressure of the forming die slide block is insufficient, normal production is ensured through the pressure of the edge-pressing die slide block, and accordingly the stability and the production efficiency of a side-surrounding outer plate drawing part are improved.

Description

technical field [0001] The invention relates to the technical field of cold stamping of automobile panels, in particular to a stamping die for a side wall outer panel. Background technique [0002] The side wall outer panel is a relatively large part in the body panel, and there are many parts assembled with it. In order to meet the assembly requirements of the whole vehicle, its dimensional accuracy and surface quality have high requirements. [0003] In the prior art, the stamping die structure of the side wall outer panel is as follows: figure 1 As shown, the lower mold 1 is installed on the workbench, the upper mold 2 is installed on the inner slider 3 of the press, the outer blank holder 4 is installed on the outer slider 5 of the press, and the inner blank holder 6 is installed on the upper On the die 2, the pressure source nitrogen spring of the inner blank die 5 is installed on the upper die 2 through fastening bolts. During the process of the mold from opening to c...

AI Technical Summary

Problems solved by technology

However, the pressure of the outer blank holder 4 on the sheet A comes from the pressure of the outer slider 5 of the press, and the forming force of the upper die 2 and the pressure of the inner blank holder 6 all come from the inner slider 3 of the press. The pressure provided by the slider 3 in the press is very high, so for large coverings such as the side panel, the pressure of the slider 3 in the press is often insufficient, resulting in the abnormal production of the side panel

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