High-strength steel roll forming arc position online punching device

Abstract

The invention discloses a high-strength steel roll forming arc position online punching device, and belongs to the technical field of punching dies. The punching device comprises an upper die assembly and a lower die assembly which are used for punching downwards, wherein the upper die assembly comprises a punch used for punching a square hole, and the punch comprises a top face, a bottom face, long edge punching faces which are symmetrically arranged on the two sides of the punch and correspond to the long edge sides of the square hole, and short edge punching faces which are symmetrically arranged at the two ends of the punch and correspond to the short edge sides of the square hole; the long edge punching surfaces on the two sides of the punch extend to form a V-shaped surface, and the intersecting line of the V-shaped surface is parallel to the long edges of the square hole; and the short edge punching surfaces at the two ends of the punch are vertical to a plate. The punching device has the beneficial effects that an original square punch is replaced with the punch with the inclined face on the long side, a square hole with the inclined face on the long side can be punched in advance, and after the inclined face on the long side of the square hole is subjected to rolling deformation and rolling part forming, the deformation angle of the inclined face on the long side of the square hole counteracts the inclination of initial punching, so that the long side of the square hole is perpendicular to the plane where the square hole is located.

Description

technical field [0001] The invention relates to a high-strength steel roll forming arc position online punching device, which belongs to the technical field of punching dies. Background technique [0002] With the development of the automobile industry, fuel economy, low carbon emissions and higher safety put forward new requirements and challenges for the lightweight of the automobile body. In the auto parts, roll forming products are getting more and more Application, roll forming products have the characteristics of high material utilization rate and high forming efficiency. [0003] Roll forming products adopt the online punching roll forming process, the raw material is metal sheet, and the metal sheet is gradually rolled and bent by rolling equipment. There is a kind of rolling part that needs to open a square hole at the curved arc, and the long side of the square hole is parallel to the central axis of the arc. If the traditional process is used, the square hole is ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an online punching device at the circular arc position of high-strength steel roll forming, which solves the problem of the square hole at the circular arc of the rolled parts produced by punching first and then rolling. There is a problem of deformation

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