Automobile shock absorber piston package film pre-compression mold

A technology for automobile shock absorbers and film wrapping, which is applied to hand-held tools, manufacturing tools, metal processing, etc., can solve problems such as high cost and achieve the effect of reducing costs

Inactive Publication Date: 2016-09-28
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 package film pre-compression mold
  • Automobile shock absorber piston package film pre-compression mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 as figure 1 Shown is a pre-pressing mold for the piston film of an automobile shock absorber, which includes a cone die 1 for setting the film and a die set above the cone die 1 to press the film to wrap the piston; the die includes a positioning die 2. The mold core 3 arranged in the mold core cavity of the positioning mold 2 and the positioning flange 4 for locking the mold core 3 in the mold 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 deformed obviously due to temperature changes, has good quality rubber coating, and has a relatively long service life.

[0017] In addition, gaskets 5 are provided between the positioning die 2 and the core 3 and between the 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 die, so as to prolong the se...

Embodiment 2

[0019] Example 2 as figure 2 As shown, it is basically the same as the automobile shock absorber piston film pre-pressing mold of embodiment 1, including a cone mold 1 and a die formed by a positioning mold 2, a mold core 3 and a positioning flange 4, and the cone mold 1 top is provided with a The annular groove 11 for clamping by the manipulator; 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 central hole of the piston, and also includes a positioning block 6 for placing the piston, and the positioning block 6 is provided with a positioning hole 61 that matches the positioning column 12, which can ensure the consistency of positioning between the piston and the cone die 1, so that the lagging effect is stable; preferably, the bottom of the positioning column 12 is a truncated cone with a large upper part and a smaller lower part , the bottom of the positioning hole 61 is a frustum hol...

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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 assembly tool for automobile parts, in particular to a pre-pressing mold for rubber-covered pistons of automobile shock absorbers. Background technique [0002] In order to prolong the service life of the automobile shock absorber piston, a layer of film is usually wrapped outside the piston. Existing pre-pressing dies used for rubber-covered pistons of automobile shock absorbers include cone dies for covering the film and a die set above the cone dies to wrap the film outside the piston after being pressed down. It is composed of blue, elastic shrink sleeve, elastic tightening positioning washer and guiding washer. This pre-pressing mold can be used for semi-automatic and semi-manual production, and can also be used in conjunction with other machinery for fully automated production. However, when this pre-pressing mold is applied to pistons of other specifications, all the molds need to be replaced, and the cost is high. ...

Claims

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Application Information

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Patent Type & Authority Patents(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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