Method for stepped formation of Z-shaped cross section component

Abstract

The invention relates to the technical field of workpiece formation, in particular to a method for stepped formation of a Z-shaped cross section component. The formation method comprises the following steps that step I, according to a component die, cutting out a raw material with an arch-shaped curved surface according to the size of the component after being unfolded; step II, fixing the raw material on the die end surface with a concave surface which has the same radian with the raw material, placing a part to be processed on a sunken region of the die according to the size of a flanging, and applying a pressure to obtain the flanging; and step III, fixing the obtained formed component on the die which is matched with the arch-shaped surface of the component and has the step arch-shaped surface, placing a part to be processed of the part outside a step of the die according to the size requirement of the component, and applying the pressure to obtain another flanging. Through production validation, the method manufactures the components meeting the size requirement, the components manufactured by using the method are delivered by 100 percent, and the problem of H out-of-tolerance, existing for a long time, is solved.

Description

technical field [0001] The invention relates to the technical field of workpiece forming, and relates to a step-by-step forming method for Z-shaped cross-section parts. Background technique [0002] Z-shaped cross-section parts are hereinafter referred to as Z-shaped parts, and there are mainly two forming methods: [0003] 1) Stamping and bending forming [0004] For Z-shaped parts with ruled surface, that is, when the part has no curvature, the bending process is usually used. The advantage of this method is that it is easy to operate and the surface quality of the parts is better. But the disadvantage is that it has great limitations. For Z-shaped parts with curvature, this process method is not applicable, and under normal circumstances, sheet metal Z-shaped parts belong to the category of curved parts. [0005] 2) With the help of molds such as figure 1 Shaped as shown [0006] For most of the Z-shaped parts belong to the typical structure of the hyperboloid, the t...

AI Technical Summary

Problems solved by technology

[0017] For Z-shaped parts with hyperboloid structure, in the traditional manufacturing process, there are common problems: the middle width H of the part is -1~-2mm higher than the theoretical width of the part.

At the same time, due to more manual planing, it not only wastes manpower, but also causes a large number of hammer marks on the surface of the parts, and the surface quality of the parts is poor.

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