A drawing process method for improving the appearance surface of the upper part of the b-pillar of the side wall outer panel of the vehicle body

Abstract

This application relates to a drawing process method for improving the appearance surface of the upper part of the B-pillar of the side panel of the vehicle body, which belongs to the technical field of manufacturing the overall side panel of the automobile. The drawing supplementary surface is respectively set on the outer periphery and the front door opening and the rear door opening, and the drawing supplementary surface includes the outer binder surface arranged on the outer periphery of the top beam outer plate and the inner binder surface arranged in the front door opening and the rear door opening; then the above concave The entrance line of the mold is used as the reference, so that the height of the outer binder surface is lower than the height of the inner binder surface; finally, the upper side sill outer panel at the top of the B-pillar takes the center line of the B-pillar as the dividing line, and is located on the upper side of the dividing line. The drawing depth of the beam outer plate is greater than the drawing depth of the upper side beam outer plate on the front and rear sides of the dividing line. The drawing process of this application is from the initial stage to the end of drawing forming. The whole process of the drawing process is in effect, and it has a better effect on solving the problem of the depression on the outer surface of the upper "T"-shaped area of ​​the side wall B-pillar.

Description

technical field [0001] The present application relates to the technical field of automobile integral side panel manufacturing, in particular to a drawing process method for improving the appearance surface of the upper part of the B-pillar of the side panel of the vehicle body. Background technique [0002] At present, the stamping process is widely used in the automobile manufacturing industry. Many covering parts and internal panels in the body-in-white are stamped on a press using a mold. Such as figure 1 As shown, the integral side wall outer panel is the most critical and important part in the car panel. It has the largest overall size, the most assembly relationships, complex shape, difficult molding, high surface quality requirements, and high dimensional accuracy requirements. The shape of the parts of the overall side wall outer panel is different, and the difficulty of stamping and forming of the parts is also different. For the location of the B-pillar 12 upper...

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present application provides a drawing process method for improving the appearance surface of the upper part of the B-pillar of the side wall outer panel of the vehicle body, so as to solve the problem of the primary appearance surface and the secondary appearance surface of the upper part of the B-pillar of the integral side wall outer panel in the related art Depression defects caused by excessive sheet metal and insufficient drawing deformation of excess sheet material

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