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Contractible arc edge forming structure

A technology of arc edge and drop shape, which is applied in the field of shrinkage arc edge forming structure, which can solve the problems of affecting processing performance and large rebound, and achieve the effects of improving production efficiency, avoiding wrinkles or protrusions, and reducing production costs

Inactive Publication Date: 2013-03-27
安徽吉峰技研有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, when the bending process is performed while shrinking the arc edge, the amount of rebound is large, which affects the processing performance and requires multiple shaping processes, so it is also necessary to improve and overcome

Method used

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  • Contractible arc edge forming structure
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Embodiment Construction

[0016] In order to deepen the understanding of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0017] Such as figure 1 As shown in -5, in the cold stamping process provided by this embodiment, the shrinking arc edge forming structure has a plurality of depressions or protrusions 3 arranged side by side at the shrinking arc edge 1 . When the workpiece is drawn and shaped to form a shrinkage arc 1, a depression or a protrusion 3 is added to the shrinkage arc 1, which can compensate the shrinkage arc 1, thereby effectively avoiding the appearance of wrinkles or protrusions and other undesirable phenomena, and making the shrinkage arc Side 1 can be formed in one go.

[0018] As a further improvement of this embodiment, the depression or protr...

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PUM

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Abstract

The invention discloses a contractible arc edge forming structure in cold stamping technological machining. A plurality of pits or bulges are abreast arranged at a contractible arc edge. When a machined part is subjected to drawing modelling and then a contractible arc edge is formed, pits or bulges are added at the contractible arc edge, so that the contractible arc edge can be subjected to compensation, therefore, the occurrence of adverse phenomena such as folds or bulges and the like is effectively avoided, and the contractible arc edge can be subjected to one-time forming. In addition, a step is arranged at a bending angle. Through the addition of the step, the rebound amount can be controlled well when the contractible arc edge is bent.

Description

technical field [0001] The invention relates to the technical field of cold stamping processing, in particular to a shrinking arc edge forming structure. Background technique [0002] In the prior art, according to the influence of different processing techniques, such as shrinking arc edges of workpieces such as automobile engine cover outer panels often have undesirable phenomena such as wrinkles or protrusions, such as attached figure 1 As shown, it not only affects the appearance of the processed parts, but also reduces the mechanical strength and service life of the processed parts, and even affects the delivery of the processed parts. In order to avoid defects such as wrinkles or protrusions on the shrinking arc, it is usually impossible to form it at one time, and the processing procedures need to be adjusted or correspondingly increased, which reduces the processing efficiency and increases the processing cost. [0003] In addition, when the bending process is perfo...

Claims

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Application Information

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IPC IPC(8): B62D25/10
Inventor 叶弥
Owner 安徽吉峰技研有限公司