Double-layer wedge structure and punching method

Abstract

The invention relates to a double-layer wedge structure and a punching method. The double-layer wedge structure comprises a wedge sliding block (4) used for side punching and a wedge sliding block (9) used for side trimming. The top face of the wedge sliding block (4) is higher than the wedge sliding block (9). The wedge sliding block (9) and the wedge sliding block (4) are arranged in a staggered mode. The wedge sliding block (9) stretches across the wedge sliding block (4). The wedge sliding block (4) and the wedge sliding block (9) are installed on an upper die base. The upper die base descends, and a drive base (11) on a lower die base drives the wedge sliding block (9) on the upper die base to move to drive a side trimming knife block (8) to carry out side trimming on a part. The upper die base continues descending, and a drive base (6) on the lower die base drives the wedge sliding block (4) located on the upper die base to move to drive a side punching punch (2) to carry out side punching on the part.

Description

technical field [0001] The invention relates to a double-layer oblique wedge structure and a stamping method. Background technique [0002] For automobile cold stamping parts, in the same plane position, different height positions, and different stamping angles, the traditional mold process is to increase the number of mold processes, complete the process in different steps, or sacrifice the quality of the parts, and place parts with different stamping angles , by spreading the surface of the part, make the stamping angles of the two as consistent as possible, so that the same stamping angle can be used, and then flanging or shaping in the subsequent sequence. Such as figure 1 As shown, taking the outer panel of the trunk lid of a certain car as an example, after the welding surface and installation surface of the license plate light position are spread out, the traditional mold process scheme is as follows: figure 2 As shown, limited by the number of mold processes, the ...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, taking the outer panel of the trunk lid of a certain car as an example, after the welding surface and installation surface of the license plate light position are spread out, the traditional mold process scheme is as follows: figure 2 As shown, limited by the number of mold processes, the side repair after the position of the license plate light is spread out must be arranged on the same wedge as the side punch of the vehicle logo installation hole, resulting in excessive spread of the position of the license plate light and excessive flanging (L1) Large, and there are problems of wrinkling and anti-arcing (flange is too long), which affects the quality of the welding surface and the installation surface

[0003] For the quality problems of the above example, in the case of traditional mold technology, the solution is to adopt such image 3 The mold process scheme shown reduces the spreading of the welding surface and the installation surface of the license plate light, that is, side repair and side punching in different processes, resulting in at least one additional mold, that is, a separate side punching car logo mounting hole, which increases production costs.

Images