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Tooling used for processing brake drum

A brake drum and tooling technology, applied in the field of parts machining, can solve the problems of high scrap rate and low shift output

Inactive Publication Date: 2010-12-29
溧阳市虹翔机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This processing method has a high scrap rate and a low shift output, which urgently needs to be improved.

Method used

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  • Tooling used for processing brake drum
  • Tooling used for processing brake drum
  • Tooling used for processing brake drum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The technical solution will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as image 3 , a tool for processing brake drums, including a sleeve 3.1, a cap 3.3 and a tension mandrel 3.4, the shape of the inner cavity of the sleeve 3.1 corresponds to the shape of the brake drum 3.2 to be processed; There is a hole at the center of the bottom of 3.1, and the expansion mandrel 3.4 is passed through the hole; the burst cap 3.3 is detachably set on the open end of the top of the sleeve 3.1;

[0021] The expansion part of the tension mandrel 3.4 is inside the sleeve 3.1, and the shape of the expansion part corresponds to the shape of the inner wall of the first hole 1.1 at the bottom of the processed brake drum 3.2;

[0022] There is an opening in the middle of the burst cap 3.3, and the opening is larger than the size of the opening end of the processed brake drum 3.2.

[0023] The bottom of the sleeve 3.1 is ...

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Abstract

The invention relates to a tooling used for processing the brake drum. The tooling comprises a sleeve, a pump cap and a expansive force mandrel, wherein the shape of the cavity of the sleeve corresponds to the shape of a brake drum to be processed; the bottom center of the sleeve is provided with a hole, the expansive force mandrel passes through the hole; the pump cap is sleeved on the top open end of the sleeve in a demountable manner; the expansion part of the expansive force mandrel is arranged in the sleeve, the shape of the expansion part corresponds to the shape of the inner wall of a first hole at the bottom of the brake drum; and the center of the pump cap is provided with an opening, and the opening is larger than the open end of the processed brake drum. Through proofs, the technical scheme of the invention well solves the bottleneck problem for lathing the brake surface; and the entire production line has stable quality and yield.

Description

technical field [0001] The invention belongs to the field of mechanical processing of parts, in particular to a tool for processing brake drums. Background technique [0002] In the prior art, it is an automobile brake drum. In the process of processing, the requirements for the beating, cylindricity and smoothness of the braking surface of the brake drum are relatively high (the schematic diagram of the axial section of the brake drum is shown in figure 1 , the overall structural diagram of the brake drum is shown in Figure 5 ). by figure 1 For the brake drum in the example, refer to figure 2 , During processing, earlier the bottom plate 2.3 two planes of the brake drum and the first hole 1.1 of φ 142.5, the second hole 1.2 of φ 210.05 are processed and then drilled, and then the common mandrel 2.5 is processed on the braking surface. [0003] In the process of processing, the cylindricity and smoothness of the braking surface are often out of tolerance due to the vib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/40B23B5/02
Inventor 吕燕翔吕伟龙史仁龙万传友彭芳美周国忠
Owner 溧阳市虹翔机械制造有限公司
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