Lithium battery outer shell drawing composite die

A composite mold, lithium battery technology, applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of thinning, cracked parts, unqualified, etc., to achieve the effect of convenient use, guaranteed blanking, and simple structure

Inactive Publication Date: 2014-12-10
洛阳特斯拉能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a deep-drawing composite mold for a lithium battery shell, which has a simple structure and is convenient to use, and effectively solves the problems of defective parts such as partial thinning and cracking during the deep-drawing process, etc.

Method used

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  • Lithium battery outer shell drawing composite die

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Embodiment Construction

[0010] The present invention will be further explained below in conjunction with the accompanying drawings.

[0011] as attached figure 1 As shown, a lithium battery casing deep drawing composite mold is characterized in that: the upper mold base 12 is connected with the backing plate 16 and the convex and concave mold fixing plate 15 sequentially through the fillet screw 13 and the cylindrical pin 14, and the convex and concave mold fixing plate 15 is set There are convex and concave molds 17, the convex and concave molds 17 are connected with the pressing and unloading plate 20, the lower part of the pressing and unloading plate 20 is connected with the movable concave mold 22, the movable concave mold 22 is equipped with a movable insert 21, the bottom of the convex and concave mold 17 is connected with the convex mold 23 Connected, the punch 23 is arranged on the punch fixing plate 7, and the punch fixing plate 7 is connected with the lower mold base 6. Both sides below t...

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Abstract

The invention discloses a lithium battery outer shell drawing composite die, and belongs to the technical field of lithium battery machining. The lithium battery outer shell drawing composite die is characterized in that an upper die base is sequentially connected with a base plate and a convex-concave die fixing plate through internal fillet screws and cylindrical pins, the convex-concave die fixing plate is provided with a convex-concave die connected with a material pressing and discharging plate, the lower side of the material pressing and discharging plate is connected with a movable concave die, a movable insert is arranged in the movable concave die, the bottom of the convex-concave die is connected with a convex die arranged on a convex die fixing plate, the convex die fixing plate is connected with a lower die base, the two sides of the lower side of the lower die base are provided with pull rods, the pull rods are provided with disc springs in a sleeved mode and are fixed between an upper supporting plate and a lower supporting plate in a penetrating mode, an upper die base and the lower die base are connected through precise guide columns fixed in the upper die base, and the precise guide columns are sleeved with precise guide sleeves. The lithium battery outer shell drawing composite die is simple in structure and convenient to use, the size of a produced lithium battery outer shell is stable, the qualified rate can reach 98% and good technical and economic effects are achieved.

Description

technical field [0001] The invention belongs to the technical field of lithium battery processing, and in particular relates to a deep-drawing composite mold for lithium battery shells. Background technique [0002] At present, the aluminum alloy of lithium batteries for mobile phones is getting thinner and thinner. For the rectangular aluminum alloy casing of lithium batteries, two forming processes can be selected according to different sizes: (1) Extrusion and thinning and deep drawing forming process; (2) Large number of sheets Sub-drawing and thinning deep-drawing forming processes. For typical high box-shaped parts that require high dimensional accuracy, although the extrusion process has higher production efficiency than the sheet metal multiple drawing process and saves raw materials, the punch is easily unstable during the extrusion process, resulting in a thicker shell wall. Uneven, unable to meet the design requirements, the thinner the battery, the less suitable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10
Inventor 张晓云曾立平武新记
Owner 洛阳特斯拉能源科技有限公司
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