A drawing die for wheel hub parts
A technology for drawing dies and parts, which is applied in the field of drawing dies, and can solve the problems of easy cracking of parts, wrinkling of flange surface, large forming depth, etc.
Inactive Publication Date: 2015-09-30
SAIC-GM-WULING AUTOMOBILE CO LTD
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AI Technical Summary
Problems solved by technology
This traditional drawing die structure has some disadvantages in the drawing of such wheel hub parts. Since it is formed by a blank holder 21, and the forming depth is relatively large, the material inside the hub flows in in an adducting manner. And the inflow is very large, the parts are easy to crack when drawn, and the flange surfaces on both sides of the hub parts are easy to wrinkle due to excessive material inflow
Method used
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[0025] The following with attached Figure 2 to Figure 5 A drawing die for hub parts of the present invention will be further described in detail.
[0026] A drawing die for wheel hub parts of the present invention, please refer to Figure 2 to Figure 5 , comprising a lower mold base 1, a punch 2, an inner binder ring 3 and an outer binder ring 4, the inner binder ring 3 is located in the outer binder ring 4, and the outer binder ring 4 is located in the outer binder ring 4 Above the lower mold base 1, the outer wall of the inner binder ring 3 is slidingly connected with the inner wall of the inner binder ring 3, and the inner binder ring 3 is elastically arranged on the lower mold base 1, and the punch 2 The curved outer wall concave inward is slidingly connected with the outer wall of the inner binder ring 3, the outer binder ring 4 is connected with the pressure source of the machine tool, and the punch 2 is detachably fixed on the lower mold base 1. In this way, the stru...
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The invention discloses a drawing die of wheel hub parts. The drawing die of the wheel hub parts comprises a lower die base, a terrace die, an inner blank holder and an outer blank holder. The inner blank holder is arranged in the outer blank holder, the outer blank holder is arranged above the lower die base, the outer wall of the inner blank holder is in sliding connection with the inner wall of the inner blank holder, the inner blank holder is elastically arranged on the lower die base, the inward-concave arc-shaped outer wall of the terrace die is in sliding connection with the outer wall of the inner blank holder, the outer blank holder is connected with a pressure source of a machine tool, and the terrace die is detachably fixed on the lower die base. The drawing die of the wheel hub parts is simple in structure and good in forming effect, greatly reduces the inflowing quantity of materials, increases the molding range, reduces cracking risks and avoids the corrugation phenomenon of flange faces of two sides of each wheel hub part.
Description
technical field [0001] The invention relates to a drawing die, in particular to a drawing die for hub parts. Background technique [0002] In the design of automotive parts, the wheel hub parts integrated with the outer plate of the wheel house have a large drawing depth, which leads to wrinkles on the flange surface of the part and cracks at the deep drawn part of the wheel house. In the mold design, the general structure of the drawing die is a structure including the lower mold base 1, the punch 2 and a blank holder 21, which adopts the form of an integral blank holder, and its structure is detailed in figure 1 . This traditional drawing die structure has some disadvantages in the drawing of such wheel hub parts. Since it is formed by a blank holder 21, and the forming depth is relatively large, the material inside the hub flows in in an adducting manner. And the inflow is very large, the parts are easy to crack when drawn, and the flange surfaces on both sides of the h...
Claims
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IPC IPC(8): B21D37/10B21D22/20
Inventor 李尚菊乔晓勇苏飞宇
Owner SAIC-GM-WULING AUTOMOBILE CO LTD