Three-boss flexible expanding die of vibration damper liquid-storage cylinder and expanding process

A liquid storage tank and shock absorber technology, which is applied in the field of the three-convex soft bulging die and bulging process of the liquid storage tank of the shock absorber, can solve the problem that the appearance quality is not easy to meet the requirements, the processing cost is increased, and the product scrap rate is increased. Advanced problems, to achieve the effect of keeping the overall appearance consistent, reducing deformation, and high tear resistance

Inactive Publication Date: 2005-12-21
杭州福鼎交通器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because this kind of mold has many edges and corners on the bulging rigid mold 5, the material is easy to crack during the extrusion and stretching process, and the product scrap rate is high. Secondly, this process has higher requirements on the pipe material and needs to be tempered Processing, the appearance quality of the workpiece after processing is not easy to meet the requirements, and the processing accuracy of the equipment and molds is very high, which greatly increases the processing cost

Method used

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  • Three-boss flexible expanding die of vibration damper liquid-storage cylinder and expanding process
  • Three-boss flexible expanding die of vibration damper liquid-storage cylinder and expanding process
  • Three-boss flexible expanding die of vibration damper liquid-storage cylinder and expanding process

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Embodiment Construction

[0019] see figure 2 , the soft bulging mold is composed of a bulging mold 1, an upper die 2, and a bulging soft mold 4. The bulging soft mold 4 and the upper die 2 are located in the cavity of the bulging mold 1, and the upper die is located in The top of the bulging soft mold 4 . The bulging die 1 is made of steel, and its cavity shape and size are machined by EDM according to the boss size required by the workpiece 3, and are heat treated to ensure high precision. The bulging soft mold 4 is made of polyurethane material, which has strong resilience, tear resistance and high elongation, so as to ensure that the processed workpiece 3 has a plump, beautiful and streamlined shape, and is consistent on the whole.

[0020] The processed workpiece 3 such as Figure 4 , Figure 5 As shown, there are three bosses 7 on it, and the shape and size of the cavity of the bulging mold 1 are processed according to the size of these three bosses 7 .

[0021] The equipment used in the bul...

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Abstract

The invention discloses a three protruding platform bulge mould for processing the liquid tube of shock-reducer. The bulge mould includes a bulge die and a upper press die. The shape of bulge model cavity is matching with the shape of the three-projection-platform on the liquid storage tube. The characteristic is that there is bugle soft die in the bulge shape cavity and the bugle soft die is under the upper pressing die and it is made up of flexible material. The process of bulging shape is: put preparative workpiece straight into bulge die cavity, and put the soft die into the workpiece and then tighten the bulge die; The upper press soft die extrudes the workpiece to make workpiece full of bugle die and the workpoece is deformed along shape of bulge die. The invention has the characteristic of reasonable design, reduced production cost, advanced eligibility of product, simple process of machining, short machining cycle.

Description

technical field [0001] The invention relates to a mold and a processing technology using the mold, in particular to a three-boss soft bulging mold and a bulging process for processing a shock absorber liquid storage cylinder, which is used for processing a shock absorber liquid storage cylinder The three expansion bosses on the barrel. Background technique [0002] In the entire production process of the liquid storage cylinder, the process of expanding the three bosses is the most difficult, and this process is used abroad such as figure 1 The rigid mold shown is processed, which belongs to the hard mold processing technology. The outer layer of the rigid mold is a bulging mold 1', an elastic bulging rigid mold 5 is installed in the middle, and the cavity and bulging mold 1' The outer wall of the forming rigid die 5 is processed according to the size of the boss required by the workpiece 3'; when the upper die 2' is forced to move downward, its tapered part stretches the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C25/02
Inventor 陈必君陈锦华
Owner 杭州福鼎交通器材有限公司
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