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Method for bending wave spring with concave hole

A wave spring and concave hole technology, applied in the field of stamping, can solve the problems of breakage and increased scrap rate, and achieve the effects of reducing scrap rate, improving productivity and good coincidence.

Inactive Publication Date: 2013-01-30
LUOYANG BEARING RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, since the marked A line is the weak point of each of the concave holes, the above-mentioned processing is likely to cause each of the concave holes to break at the A line, resulting in an increase in the reject rate

Method used

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  • Method for bending wave spring with concave hole
  • Method for bending wave spring with concave hole
  • Method for bending wave spring with concave hole

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Embodiment Construction

[0029] The present invention can be explained in more detail through the following examples. The present invention is not limited to the following examples. The purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention.

[0030] The invention is a bending method of a wave spring with a concave hole.

[0031] combine Figure 1-Figure 2 , on the wave spring 7 to be bent with a width of B and a thickness of K, several concave holes that have been stamped and approximately concave are arranged equidistantly in sequence, and a line connecting two convex parts of one concave hole to another adjacent concave hole The distance between the symmetrical centerlines of the two convex parts of the hole is set as C, and the symmetrical centerline of the two convex parts is referred to as line A for short, and each concave hole is bent from the line A, and each bending is required to be The inner radius of the bending po...

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Abstract

The invention discloses a method for bending a wave spring with concave holes. The wave spring (7) to be bent has a width B and a thickness K and is provided with a plurality of concave holes; a pad plate (1) and a concave die (2) are fixed on a working table of a press machine through threaded through holes (8) of the concave die; a positioning pin (6) is installed inside a positioning pin hole (9); a convex die (3) is linked with a punching platform of the press machine through a threaded through holes (3.1) of the convex die; as N equals to M, a bending pressure head (5) can enter a bending groove (10); when the wave spring to be bent is positioned through the positioning pin, the punching platform moves downwards to bend the wave spring to be bent from the concave holes, and the bent parts of the wave spring meet the requirements of H and r; and the bent wave spring to be bent is taken out from the bending groove and moved to a discharge groove (11) so as to accomplish the bending process of the wave spring to be bent at one of the concave holes. The wave spring can be formed by repeating the bending process, the productivity is improved, and the rejection rate is reduced.

Description

[0001] technical field [0002] The invention belongs to the technical field of stamping, and in particular relates to a bending method of a wave spring with a concave hole. [0003] Background technique [0004] figure 1 It is a schematic diagram of the expansion of the wave spring to be bent when it is not bent. On the wave spring, there are several concave holes that have been stamped and are approximately concave. The line connecting the two convex parts of one concave hole to the other adjacent The distance between the symmetrical centerlines of the two convex parts of the concave hole is set to C, figure 1 The A line marked in is the symmetrical center line of the two convex parts of the concave hole, figure 1 The subscript B is the width of the wave spring. [0005] figure 2 is a schematic cross-sectional view of the wave spring during bending. The wave spring starts to bend from the line A of each concave hole. The inner radius of each bend is set to r, and the...

Claims

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Application Information

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IPC IPC(8): B21D5/01B21D37/10
Inventor 陈怀刚梁兴江孙立明徐浩
Owner LUOYANG BEARING RES INST CO LTD
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