Shaping method of automobile u-shaped beam sheet metal parts

Abstract

The invention discloses an automobile U-shaped beam type sheet metal part shaping method. The method comprises the following steps that 1, an opening of a U-shaped beam is placed downwards, the U-shaped beam is rotated towards the side by a certain angle around the axial line or center line of the U-shaped beam to enable the bottom face of the U-shaped beam and the horizontal plane to be arrangednot in parallel, and in other words, one side face of the U-shaped beam is a higher side face, and the other side face of the U-shaped beam is a lower side face; and 2, a die is adopted for stamping and shaping the U-shaped beam in the vertical direction, the front shaping technology is adopted for the higher side face of the U-shaped beam, and the side shaping technology is adopted for the lowerside face of the U-shaped beam. Front shaping and side shaping are adopted for the two sides of the U-shaped beam correspondingly, so that shaping technological requirements can be met, the die manufacturing cost is reduced, the shaping technology design scheme of a U-shaped beam type sheet metal part is simplified, adjusting and operation are easy, and workpiece product quality can be better ensured.

Description

Technical field [0001] The invention belongs to the technical field of stamping and shaping, and in particular relates to a shaping method for automotive U-beam sheet metal parts. Background technique [0002] With the rapid development of the automobile industry now, people have higher and higher requirements for the quality of automobiles. In order to meet the needs of consumers, this requires the production of high-precision sheet metal parts in the production process of automobile sheet metal parts. [0003] At present, the U-shaped beam shaping process mainly adopts a single positive shaping and side shaping to complete. Since the shape of the U-shaped beam itself determines the molding process, it is easy to rebound and not easy to control after molding, which has higher requirements for the later shaping process. In the shaping process, springback compensation must be considered while shaping. [0004] The usual process is only a simple positive shaping or simple side shapin...

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Problems solved by technology

[0004] The usual process is only simple positive shaping or simple side shaping. The springback correction effect of positive shaping on U-shaped beams is not obvious and the state is unstable, while side shaping has obvious springback correction on U-shaped beams. Refer to Figure 1 to Figure 3

However, on the one hand, the side-shaped wedge mechanism 1 will increase the production cost, on the other hand, it is not easy to operate, and the process stability is poor, so the U-shaped beam has brought great troubles to various manufacturers.

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