Self-centering clamping device for shaft tube parts

Abstract

The invention discloses a self-centering clamping device of axle tube type parts. A first linear guide rail is arranged on a worktable; a left cylinder body and a right cylinder body are arranged on the guide rail in a sliding manner; a left clamping claw and a right clamping claw are arranged at the upper parts of relative sides of the left cylinder body and the right cylinder body; a piston rod penetrates through the lower parts of the left cylinder body and the right cylinder body along a left-right direction; a right channel through which the piston rod passes is formed in the lower part of the right cylinder body; a sealed cavity is formed by blocking the left and right ends of the right channel; a piston head is fixedly arranged at the right end of the piston rod; the piston head is located in the sealed cavity of the right cylinder body and can move in the sealed cavity from left to right; and the left part of the piston rod is fixedly connected with the left cylinder body. The self-centering clamping device of the axle tube type parts has the advantages that self-centering clamping work of the axle tube type parts can be realized, a whole process is automatic, the self-centering clamping stability is high, clamping pressure is stable, the fluctuation is small and a pressure adjustable range is large.

Description

Technical field [0001] The invention relates to a self-centering clamping device for shaft and tube parts. Background technique [0002] The self-centering clamping of existing shaft and tube parts generally adopts the following methods: (1) Servo type, which is too costly; (2) Pneumatic type, with small clamping force and limited by structural space; (3) Gear teeth Strip type, complex mechanical structure, tend to produce partial load in the process of force transmission. Summary of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a self-centering clamping device for shaft and tube parts, so as to achieve high self-centering and clamping stability of shaft and tube parts, stable pressure and small fluctuations. The purpose of large adjustable pressure range. [0004] The present invention is realized through the following technical solutions: [0005] A self-centering clamping device for shaft and tube parts, ...

AI Technical Summary

Problems solved by technology

[0002] The existing self-centering clamping methods for shaft and tube parts are: (1) Servo type, the cost is too high; (2) Pneumatic type, the clamping force is small and limited by the structural space; (3) Gear teeth Bar type, complex mechanical structure, often produces partial load in the process of force transmission

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