A segmented preforming method for torsion beams

Abstract

The invention discloses a segmented torsion beam preforming method, which comprises the following steps: S1, raw material selection; S2, adopting split preforming equipment to press the selected pipe to form a predetermined shape, and the split preforming equipment includes A lower mold and an upper mold, the upper mold includes a middle insert and a first insert and a second insert relatively arranged at both ends of the middle insert; the specific pressing steps are as follows: S21, placing the selected pipe on the lower mold and make one end of the pipe under the first insert, and the other end under the second insert; S22, push the upper die to move toward the lower die to press the pipe placed on the lower die, and press During the forming process, the first insert and the second insert in the upper mold are brought into contact with the pipe in advance to pre-compress the two ends of the pipe; S23, after pressing and forming, push the upper mold to reset. The invention can effectively ensure that the "V"-shaped R-angle shape is uniformly distributed on the left and right in the processed product.

Description

technical field [0001] The invention relates to the technical field of auto parts processing, in particular to a segmented torsion beam preforming method. Background technique [0002] The torsion beam forming process is completed in two steps. The first step is preforming to press the round tube into a "V" shape, and the second step is internal high pressure forming to make the product bulge to the final shape. Preforming is the most critical process in the production of torsion beams. Conventional torsion beam preforming methods are prone to rotation and offset when the round tube is in contact with the upper die during the pressing process, resulting in a "V"-shaped R-angle shape after pressing. Unevenness has a great impact on the performance of the torsion beam. Contents of the invention [0003] Based on the technical problems existing in the above-mentioned background technology, the present invention proposes a segmented torsion beam preforming method. [0004] A...

AI Technical Summary

Problems solved by technology

Preforming is the most critical process in the production of torsion beams. Conventional torsion beam preforming methods are prone to rotation and offset when the round tube is in contact with the upper die during the pressing process, resulting in a "V"-shaped R-angle shape after pressing. Inhomogeneity, which greatly affects the performance of the torsion beam

Images