Edge curling method of stamping part and mold of edge curling method

A technology for stamping parts and hemming, which is applied in the field of stamping parts hemming methods and molds, can solve the problems of high difficulty and difficult to control precision, and achieves the effect of low manufacturing cost and guaranteed accuracy.

Inactive Publication Date: 2018-09-28
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] like figure 1 The schematic diagram of the stamped part of the automobile inner panel in the prior art is shown, and its two sides are long strip-shaped curling str

Method used

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  • Edge curling method of stamping part and mold of edge curling method
  • Edge curling method of stamping part and mold of edge curling method
  • Edge curling method of stamping part and mold of edge curling method

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Embodiment Construction

[0025] The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0026] Such as Figure 2 to Figure 7 As shown, the embodiment of the present invention provides a stamping part curling method, including:

[0027] Step 1: Blanking, to obtain the sheet material of the size and shape required for the subsequent production of stamping parts.

[0028] Step 2: The main body is formed, and the non-curling part of the process part obtained in step 1 is formed to facilitate subsequent shape positioning.

[0029] Step 3: Hemming pre-bending, realize the pre-bending of the upper R angle of the hemming area of ​​the process part obtained in Step 2, because of the strain strengthening effect of the metal sheet, the strength of the upper R angle will be higher, which is convenient for subsequent forming. The sequence can complete the processing of the hole position sy...

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Abstract

The invention discloses an edge curling method of a stamping part and a mold. The method comprises the steps of firstly, blanking, wherein the stamping part is obtained, and a plate of the needed sizeand shape is produced later; secondly, body forming, wherein the non-edge-curling portion of the procedure part obtained in the first step is formed; thirdly, edge curling and prebending, wherein forming of an upper R angle of the edge curling area of the procedure part obtained in the second step is achieved; fourthly, edge curling and turnover, wherein forming of a lower R angle of the edge curling area of the procedure part obtained in the third step is achieved; and fifthly, edge curling and press fitting, wherein final forming of the procedure part obtained in the fourth step is achieved. Compared with the prior art, through three procedures of edge curling forming, modeling of an edge curling product is achieved, based on the edge curling process, a designed edge curling mold is simple in structure, easy to machine and low in manufacturing cost, and the edge curling precision is guaranteed.

Description

technical field [0001] The invention relates to the technical field of stamping parts production, in particular to a stamping part curling method and a mold thereof. Background technique [0002] Such as figure 1 The schematic diagram of the stamped part of the automobile inner panel in the prior art is shown, and its two sides are long strip-shaped curling structures 1′. The general stamping production process for this shape of curling is relatively difficult and cannot be stamped. Direct forming, the precision is difficult to control. Contents of the invention [0003] The purpose of the present invention is to provide a stamping part curling method and its mold to solve the technical problems in the prior art, which can improve the quality of product curling. [0004] The invention provides a stamping part curling method, comprising: [0005] Step 1: Blanking, to obtain the sheet material of the size and shape required for the subsequent production of stamping parts;...

Claims

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Application Information

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IPC IPC(8): B21D35/00B21D53/88B21D37/10B21D19/08B21D19/12
Inventor 徐肖王旭黄涛
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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