Automatic expansion core clamp for thin-walled cylinder parts

A technology for thin-walled tubes and parts, which is applied in the field of automatic core-expanding turning fixtures for thin-walled tube parts, can solve problems such as high labor intensity, low labor productivity, and complicated installation, so as to improve rationality, reliability, and labor productivity , the effect of reducing labor intensity

Inactive Publication Date: 2014-08-06
CHINA NTAIONAL NUCLEAR TIANJIN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of manual clamping device is that the labor intensity of the operator is high and the labor productivity is low; the installation of the separate automatic expansion core fixture is more complicated. After th

Method used

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  • Automatic expansion core clamp for thin-walled cylinder parts
  • Automatic expansion core clamp for thin-walled cylinder parts
  • Automatic expansion core clamp for thin-walled cylinder parts

Examples

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Embodiment Construction

[0030] The automatic expansion core clamp for thin-walled cylindrical parts of the present invention will be described in detail below in conjunction with the embodiments and accompanying drawings:

[0031] Such as figure 1 As shown, an automatic expansion core fixture for thin-walled cylindrical parts, including a core shaft 1 forming a central through hole, a connecting shaft 2 and an expansion sleeve 3,

[0032] Such as figure 2 , 3 , 4, the mandrel 1 is composed of a fixed part 11, a limiting part 12 and a tapered shaft part 13 from left to right, one end of the fixing part 11 forms a flange and is fixed to the chuck 9 of the machine tool, and the limiting part A radial positioning hole 14 is formed on the 12, and the tapered shaft portion 13 is in the shape of a truncated cone with a taper on the outer peripheral surface;

[0033] The connecting shaft 2 extends into the central through hole of the mandrel 1, one end is threadedly connected with the piston rod 7 of the...

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PUM

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Abstract

The invention discloses an automatic expansion core clamp for thin-walled cylinder parts. The automatic expansion core clamp comprises a core shaft and a cylindrical expansion sleeve, wherein the core shaft consists of a fixing part, a limiting part and a taper shaft part; the inner wall of the cylindrical expansion sleeve is tapered; a through hole is formed in the closed end of the expansion sleeve; grooves are formed in the outer walls of two ends of the expansion sleeve; a retainer ring is arranged in each groove; a connecting shaft extends into central through holes in the core shaft and the expansion sleeve; one end of the connecting shaft is connected with a piston rod; a flange is arranged at one end, positioned outside the expansion sleeve, of the connecting shaft; a limiting flange is formed at the position close to the inner side surface of the closed end of the expansion sleeve; an axial key groove is formed in the outer wall, corresponding to a screw hole, of the connecting shaft; a screw is arranged in the screw hole, and one end of the screw extends into the key groove. By using a hydraulic source as a power source, the labor intensity is further alleviated, and the labor production rate is increased; the clamp is directly connected with a machine tool spindle through the screw, so that the rotation accuracy of the clamp is ensured; by virtue of the integrated design of the clamp, the reasonableness and the reliability of a clamp structure are greatly improved.

Description

technical field [0001] The invention belongs to a machine tool fixture, in particular to an automatic core-expanding turning fixture for thin-walled cylindrical parts. Background technique [0002] At present, there are two main types of turning fixtures for thin-walled cylindrical parts: manual clamping and separate automatic expansion core clamping. The disadvantage of manual clamping device is that the labor intensity of the operator is high and the labor productivity is low; the installation of the separate automatic core expansion fixture is more complicated. After the installation, the outer circle needs to be turned to ensure the coaxiality requirement. The automatic core-expanding turning fixture solves the problems of high labor intensity, low productivity, and complicated installation. Contents of the invention [0003] The present invention is proposed in order to overcome the shortcomings in the prior art, and its purpose is to provide an automatic core expans...

Claims

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Application Information

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IPC IPC(8): B23B31/42
CPCB23B31/404B23B31/406
Inventor 程绍杨张长秋谢宁刘世然孟子茹刘敬孙岳城
Owner CHINA NTAIONAL NUCLEAR TIANJIN MACHINERY
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