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Expansion shaft sleeve for machining alloy mandrel

A technology for expanding shafts and mandrels, applied in metal processing equipment, metal processing mechanical parts, manufacturing tools, etc., can solve the problem of difficulty in ensuring the coaxiality of the inner hole and the outer circle, and achieve the effect of good coaxiality

Inactive Publication Date: 2013-01-02
ZHEJIANG HENGCHENG CEMENTED CARBIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an expansion bushing for alloy mandrel processing, which can effectively solve the problem that the coaxiality between the inner hole and the outer circle is difficult to guarantee when the existing alloy mandrel uses a bushing to fix the inner hole.

Method used

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  • Expansion shaft sleeve for machining alloy mandrel

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Embodiment Construction

[0009] refer to figure 1 It is an embodiment of an expansion bushing for processing an alloy mandrel according to the present invention. An expansion bushing for processing an alloy mandrel includes a bushing body 1, and the bushing body 1 is provided with a Adapted through hole 2, at least two expansion joints 3 communicating with the through hole 2 are opened on the side wall of the sleeve body 1, one end of the expansion joint 3 extends to the end surface of the sleeve body 1, the Two adjacent expansion joints 3 extend to the two opposite end faces of the sleeve body 1, the first expansion joint 3 opens to the left until the left end face of the sleeve body 1, and the second expansion joint 3 opens to the right To the right end face of the shaft sleeve body 1 , the axis of the through hole 2 coincides with the axis of the shaft sleeve body 1 , and the expansion joint 3 is parallel to the axis of the through hole 2 .

[0010] The alloy mandrel is inserted into the through h...

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Abstract

The invention discloses an expansion shaft sleeve for machining an alloy mandrel. The expansion shaft sleeve comprises a shaft sleeve body, wherein through holes matched with the processed alloy mandrel are formed in the shaft sleeve body; at least two expansion joints communicated with the through holes are arranged on the side wall of the shaft sleeve body; and one end of each expansion joint extends to the end surface of the shaft sleeve body. The expansion shaft sleeve disclosed by the invention has the advantages that due to the arrangement of the expansion joints, the whole shaft sleeve body has a certain axial elasticity and inner walls of the through holes can be in surface contact with the alloy mandrel; and when an inner hole is processed, the alloy mandrel is prevented form shaking, and thus a favorable coaxiality between the inner hole and an excircle during processing of the inner hole is ensured.

Description

technical field [0001] The invention relates to an expansion shaft sleeve for machining an alloy mandrel. Background technique [0002] The alloy mandrel is generally cylindrical or conical, with a through hole along the axial direction. When processing the existing alloy mandrel, the outer circle is processed first, and then the inner hole is processed. When processing the internal control, a shaft sleeve is required. However, the current bushings have an inner hole in the middle that matches the outer surface of the alloy mandrel, and the alloy mandrel is inserted into the inner hole to fix it. There is only a point between the inner hole of the bushing and the alloy mandrel in this structure. Contact or line contact, the alloy mandrel will vibrate when the machine tool processes the inner hole, which will affect the coaxiality between the inner hole and the outer circle of the alloy mandrel. Contents of the invention [0003] The purpose of the present invention is to ...

Claims

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Application Information

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IPC IPC(8): B23Q3/00
Inventor 黄椿金益民吴晓娜郭伟波
Owner ZHEJIANG HENGCHENG CEMENTED CARBIDE
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