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Metal sheet pre-stretching mold

A metal sheet and pre-stretching technology, used in metal processing equipment, forming tools, manufacturing tools, etc., can solve problems such as high cost, and achieve the effects of convenient loading and unloading of sheet materials, safe and reliable forming process, and easy control of deformation.

Inactive Publication Date: 2010-08-25
上海屹丰汽车模具制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the amount of deformation can be controlled and the efficiency is relatively high, it is expensive and suitable for mass production, not suitable for research on only a small number of pieces

Method used

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  • Metal sheet pre-stretching mold
  • Metal sheet pre-stretching mold
  • Metal sheet pre-stretching mold

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Embodiment Construction

[0018] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0019] As shown in Figure 1, the mold of this embodiment is symmetrical on both sides, one side of which includes: upper mold base 1, upper wedge 2, upper bracket 3, lower wedge 4, sheet metal clamping block 5, sheet material placement Table 6, chute 7, safety bracket 8 and lower mold base 9, wherein: upper wedge 2 and upper bracket 3 are fixed on upper mold base 1, upper wedge 2 and upper bracket 3 are fixedly connected, and chute 7 runs along the lower The lengthwise direction of mold base 9 is fixed, and plate clamping block 5 is located at the inside of lower wedge 4, and lower wedge 4 and chute 7 are movably c...

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Abstract

The invention discloses a metal sheet pre-stretching mold, belonging to the technical field of mechanical stretching. The mold includes two symmetric sides, one of which comprises: an upper mold holder, an upper wedge block, a lower wedge block, a sheet clamping block, a sheet placement platform, a slide groove and a lower mold holder, wherein the upper wedge block is fixed on the upper mold holder, the slide groove is fixed in the length direction of the lower mold seat, the sheet clamping block is arranged inside the lower wedge block, the lower edge block is movably connected with the slide groove, and the sheet placement platform is fixed on the lower mold holder. The mold has the characteristics of easy control of sheet deformation, simple structure, convenient sheet loading and unloading, safe and reliable molding process, and the suitability for the pre-stretching deformation of sheets in two sizes, namely the maximal width is 150mm, the maximal thickness is 4mm and the length is either 300mm or 450mm.

Description

technical field [0001] The invention relates to a mold in the technical field of forming, in particular to a metal plate pre-stretching mold. Background technique [0002] In the case of sheet metal with initial strain, the formability will change to a certain extent. To make the sheet have initial strain, it is a common method to pre-stretch the sheet. The current pre-stretch forming is mainly completed on tensile testing machines and special pre-stretch forming equipment. The advantage of pre-stretching on a tensile testing machine is that the tensile force and deformation can be well controlled, but the disadvantage is that the tensile force is limited and the clamping width is limited. The general tensile testing machine has a tensile force of 40KN, and the width of the clamping end is 40mm. The maximum width of the sheet that can be stretched is only 40mm. If the thickness is 2mm, the maximum strength of the pre-strained sheet can be 500MPa. However, many commonly us...

Claims

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Application Information

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IPC IPC(8): B21D37/10B21D22/20
Inventor 汪昌盛陈军陈劼实李细锋徐栋恺于翔宇
Owner 上海屹丰汽车模具制造有限公司
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