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Automobile shock absorber piston wrapping film prepressing die

A technology of automobile shock absorbers and rubber-covered sheets, which is applied in hand-held tools, manufacturing tools, metal processing, etc., can solve the problem of high cost and achieve the effect of reducing costs

Inactive Publication Date: 2014-04-23
NINGBO ZHENHAI XIUCHANG ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this pre-pressing mold is applied to pistons of other specifications, it is necessary to replace all the molds, and the cost is relatively high

Method used

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  • Automobile shock absorber piston wrapping film prepressing die
  • Automobile shock absorber piston wrapping film prepressing die

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 figure 1 Shown is a pre-compression mold for automobile shock absorber piston covering film, which includes a cone mold 1 for covering the film and a compression mold set on the cone mold 1 to wrap the piston after being pressed down; the compression mold includes a positioning mold 2. The core 3 arranged in the core cavity of the positioning die 2 and the positioning flange 4 used to lock the core 3 in the core cavity. Among them, the mold core 3 is made of hard metal or hard metal alloy such as iron or stainless steel, which will not be significantly deformed due to changes in temperature, has good quality of encapsulation, and has a relatively long service life.

[0017] In addition, a gasket 5 is provided between the positioning mold 2 and the mold core 3 and between the mold core 3 and the positioning flange 4. One is to prevent the mold core 3 from directly colliding with the positioning mold 2 and the positioning flange 4 during the working process of the ...

Embodiment 2

[0019] Example 2 such as figure 2 As shown, it is basically the same as the pre-compression mold for the automobile shock absorber piston wrap film of Example 1, including a cone mold 1 and a compression mold composed of a positioning mold 2, a core 3 and a positioning flange 4. The upper part of the cone mold 1 is provided with a The difference is that the center of the bottom of the cone mold 1 is coaxially provided with a positioning column 12 passing through the center hole of the piston, and it also includes a positioning block 6 for placing the piston. 6 is provided with a positioning hole 61 that matches the positioning column 12, which can ensure the consistency of the positioning of the piston and the cone mold 1, thereby stabilizing the encapsulation effect; preferably, the bottom of the positioning column 12 is a truncated cone with a large upper and a smaller bottom. , The bottom of the positioning hole 61 is a frustum hole matching the frustum.

[0020] In addition...

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PUM

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Abstract

The invention discloses an automobile shock absorber piston wrapping film prepressing die which comprises a taper die (1) for a film to sleeve and a pressing die arranged above the taper die (1) and enabling the film to wrap a piston after being pressed down. The pressing die comprises a positioning die (2), a die core (3) arranged in a die core cavity of the positioning die (2) and a positioning flange (4) for locking the die core (3) in the die core cavity. The automobile shock absorber piston wrapping film prepressing die has the advantages that the pressing die is changed into a new structure formed by connecting the positioning die (2), the die core (3) arranged in the die core cavity of the positioning die (2) and the positioning flange (4) for locking the die core (3) in the die core cavity, the prepressing die can be suitable for film wrapping production of other specifications of pistons only by replacing the die core (3) and the taper die (1), the cost is reduced, and meanwhile the standardized design that the die core (3), the taper die (1) and the piston correspond in specification can be achieved.

Description

Technical field [0001] The invention relates to an assembling tool for automobile parts, in particular to a pre-compression die for a piston covering film of an automobile shock absorber. Background technique [0002] In order to prolong the service life of the automobile shock absorber piston, a layer of film is usually wrapped around the piston. Existing pre-pressing molds for covering film for automobile shock absorber pistons include a cone mold for covering the film and a pressure mold set on the cone mold to wrap the film outside the piston after being pressed down. The pressure mold is determined by a positioning method. The flange, the elastic shrink sleeve, the elastic tightening positioning washer and the guiding washer are connected to form a structure. This kind of pre-compression mold can be used for semi-automatic and semi-manual production, and it can also be used with other machinery for fully automated production. However, this kind of pre-compression mold is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/027
CPCB25B27/0035
Inventor 刘秀平曾思华刘佳舒柳刘雄通
Owner NINGBO ZHENHAI XIUCHANG ELECTROMECHANICAL
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