Additional method of draw-bead technique for corner part of external covering of vehicle

Abstract

The invention provides a drawing reinforcement process supplementing method for a corner part of an outer cover part of a vehicle. In the method, two tangent points (F) are assured on an arc sideline of the corner part, wherein, the tangent points are arranged at the tangent part of the arc sideline and a straight sideline of the outer cover part which is adjacent to the arc sideline; straight lines (G) are respectively made at the two tangent points, wherein, the extending direction of the straight lines is basically vertical to the connecting direction of the two tangent points; two oblique drawing reinforcements (5) which are respectively arranged at the external side of the two straight lines and are basically parallel with the straight lines are arranged. The drawing reinforcement process supplementing method provided by the invention is used for the drawing reinforcement process supplement on the corner part of the outer cover part of the vehicle. The obvious wrinkle in the drawing process of a flange surface around the corner part of the outer cover part can be effectively avoided. The surface quality of drawing pieces is improved. Therefore, the surface quality of finished product parts is improved.

Description

technical field [0001] The invention relates to the field of die stamping, more specifically, to a method for supplementing the drawbead process on the corner part of the vehicle outer cover. Background technique [0002] In recent years, the stamping process has been widely used in the automobile manufacturing industry. Many outer covers and inner panels in vehicles are stamped by dies. Usually, the first step in forming a part with a mold is to use a drawing die to draw and shape the blank sheet, and then perform punching, trimming, flanging, shaping, etc. according to the specific requirements of the shape of the part. Before designing and manufacturing the drawing die for drawing and shaping the sheet, the first thing to do is to supplement the shape of the part according to the shape of the part to be formed, so as to design the mold shape of the drawing die. noodle. [0003] In actual production, some outer covering parts in the vehicle, such as the outer panel of th...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for supplementing the drawbead process on the corner part of the vehicle outer cover, which can solve the problem of obvious wrinkling of the flange surface around the corner part during the drawing process

[0007] Supplementing the drawbead process on the corner part of the vehicle outer cover by using the method for supplementing the drawbead process provided by the present invention can effectively solve the obvious wrinkling phenomenon of the flange surface around the corner part of the outer cover during the drawing process problems, improve the surface quality of the drawn parts, thereby improving the surface quality of the final finished parts

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