A hollow shaft fixture

Abstract

The invention provides a hollow shaft tool fixture. The hollow shaft tool fixture comprises a base; an inner clamping arm for passing through the interior of a hollow shaft is arranged in the center of the base; the base is provided with an automatic switch device; the automatic switch and one axial end of the side wall of the hollow shaft are matched for opening and closing; the inner clamping arm is provided with a linear actuator and a fixed cylinder; the fixed cylinder is of a hollow structure; the linear actuator is positioned in the fixed cylinder; a body of the linear actuator is hinged to one ends of multiple clamping arms; the middle parts of the clamping arms are also hinged to the side wall of the fixed cylinder; through grooves are longitudinally formed in the parts, hinged with the clamping arms, of the fixed cylinder; and fixing pieces are arranged at the other ends of the clamping arms, and include fixing blocks and springs. The hollow shaft tool fixture is used for solving such problems as need of manually starting the clamping action and incapability of machining the clamped part of the hollow shaft due to clamping of the hollow shaft from two sides or the outer side in the prior art.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a hollow shaft fixture. Background technique [0002] With the development of the machinery industry, the requirements for the shape of the parts vary widely. Different shapes of workpieces must adopt different forms of clamping methods when processing on the machine tool. For example, when processing the length of the hollow shaft and grinding its edge, the hollow shaft needs to be Fixing, the traditional fixing method uses a clamping and a top method to clamp and fix the side wall of the hollow shaft at the same time. When grinding the outside of the side wall of the hollow shaft, because part of the side wall is blocked by the clamping arm, it cannot be done. Grinding requires manual secondary processing to complete; in addition, when the hollow shaft is fixedly installed, it is necessary to place the hollow shaft on the fixture first, turn on the electric switch, and then...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a hollow shaft tooling fixture to solve the problems in the prior art that the clamp needs to be manually opened and clamped, and the clamped part of the hollow shaft cannot be processed by clamping the hollow shaft on both sides or outside.

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