Automotive roof plastic mold and forming method thereof

Abstract

The invention provides an automobile roof shaping mold and a molding method thereof. The automobile roof shaping mold includes a lower mold and an upper mold. The lower mold is formed with an upper support surface for supporting the top section and a side molding surface for forming the tail section. 1. The rounded connecting surface connecting the upper supporting surface and the side forming surface and the side supporting surface used to support the edge blanking section of the process; the upper mold correspondingly includes a positive pressing block, a positive fillet pressing block, a side shaping pressing block and Side pressing blocks. When closing the mold, the positive pressing block corresponds to the top section of the pressing, the side pressing block corresponds to the edge section of the pressing process, the side trimming block trims the tail section sideways, and the side trimming block and the positive rounded corner pressing block are used for Co-molding fillet connection segments. Since the positive fillet pressure block is introduced at the later stage of the side shaping tail section to positively shape the fillet connection section, the situation of no compression in the fillet connection section is avoided, and at the same time, the deformation of the top section caused by side shaping is positively shaped, so that The junction between the top section and the fillet connection section has stable characteristics, and the top section has no concave deformation.

Description

technical field [0001] The invention relates to the technical field of automobile roof processing, in particular to an automobile roof shaping mold and a forming method thereof. Background technique [0002] The shape of the automobile body is welded by many covering parts with large outline size and spatial surface shape, so there are high requirements for the dimensional accuracy and surface quality of the covering parts. As one of the core outer covering parts, the outer panel of the automobile roof is respectively overlapped with the side wall and the outer panel of the tailgate. The precision and surface quality of the stamping parts directly affect the precision of the whole vehicle and the appearance quality of the body. Due to product shape and assembly function requirements, there is a "B"-shaped negative angle structure along the entire edge of the overlapping joint between the outer panel of the roof cover and the outer panel of the tailgate, which needs to be rea...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to propose a car roof plastic mold, which aims to solve the problem that the existing plastic mold easily causes the top section of the car roof to be sunken and deformed when the side is formed into a "B"-shaped negative angle structure.

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