Method and clamp for clamping thin-walled cylinder-shaped workpieces

A thin-walled cylinder and workpiece technology, applied in the field of mechanical design, can solve problems such as workpiece clamping deformation, low production efficiency, and difficult to guarantee machining accuracy, and achieve the effect of preventing vibration

Inactive Publication Date: 2014-09-03
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, when finishing thin-walled cylindrical workpieces such as inner hole grinding and turning, radial clamping with an elastic sleeve attached to the outer circle of the workpiece or clamping with a three-jaw chuck is generally used to fix the workpiece, which is easy to produce Clamping deformation, difficult to guarantee machining accuracy, low production efficiency

Method used

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  • Method and clamp for clamping thin-walled cylinder-shaped workpieces
  • Method and clamp for clamping thin-walled cylinder-shaped workpieces
  • Method and clamp for clamping thin-walled cylinder-shaped workpieces

Examples

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Embodiment Construction

[0012] Tighten the inner nut cover plate 7 with a small force so that there is no gap between each section of the rubber sleeve, and then tighten the outer nut cover plate 8 with the same force. The outer diameter of the outer nut cover plate 8 is slightly smaller than the workpiece 6 inner diameter. At this time, the air bag 2 is inflated through the air hole 1 at the end of the mandrel 5, and the air bag 2 expands so that the polyurethane rubber 3 elastically deforms outward along the diameter of the mandrel, and is inflated to clamp the workpiece. The roughness of the contact part between the outer nut cover plate 8 and the rubber is relatively high. At this time, tighten the outer nut cover plate 8 with greater force to apply a pre-tightening force to the rubber sleeve to drive the outer ring of the rubber sleeve to rotate at a certain angle to prevent the workpiece from being processed. tremors. The screw thread of mandrel 5 left half is opposite to the screw thread of r...

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Abstract

The invention discloses a method and a clamp for clamping thin-walled cylinder-shaped workpieces. The clamp is composed of an air bag 2, polyurethane rubber 3, a connecting pipe 4, a mandrel 5, an inner nut cover plate 7 and an outer nut cover plate 8. Through the radial elastic deformation of the air bag 2 and the polyurethane rubber 3 and the holding power of the connecting pipe 4, the inner nut cover plate 7 and the outer nut cover plate 8, the thin-walled cylinder-shaped workpieces can be evenly clamped. The method and clamp for clamping the thin-walled cylinder-shaped workpieces are characterized in that the connecting pipe 4, the air bag 2 and the polyurethane rubber 3 are sequentially mounted on the mandrel 5, afterwards, the inner nut cover plate 7 is screwed down first, then the outer nut cover plate 8 is arranged to be screwed down, and thus the thin-walled cylinder-shaped workpieces can be assembled through the retention clamp.

Description

Technical field [0001] The invention provides a clamping method and a clamp for a thin-walled cylindrical workpiece, and relates to the technical field of mechanical design. Background technique [0002] At present, when finishing thin-walled cylindrical workpieces such as inner hole grinding and turning, radial clamping with an elastic sleeve attached to the outer circle of the workpiece or clamping with a three-jaw chuck is generally used to fix the workpiece, which is easy to produce The clamping is deformed, the processing accuracy is difficult to guarantee, and the production efficiency is low. Contents of the invention [0003] The invention provides a clamping method and a clamp for a thin-walled cylindrical workpiece. The fixture is composed of air bag 2, polyurethane rubber 3, connecting pipe 4, mandrel 5, inner nut cover plate 7 and outer nut cover plate 8. [0004] Install the connecting pipe 4 and the air bag 2 on the mandrel successively, and then put the po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/40
CPCB23B31/40
Inventor 肖茂华宋欣燃曹艺王彬李尚杨先进
Owner NANJING AGRICULTURAL UNIVERSITY
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