A hydraulic liquid plastic expanding mandrel fixture

Abstract

The invention discloses a hydraulic clamp for a liquid-plastic expansion core shaft and belongs to the field of machinery. The hydraulic clamp for the liquid and plastic expansion core shaft comprises a clamp body, a connection sleeve, a pull rod, an expansion sleeve, a positioning sleeve and a forcing screw, wherein the clamp body consists of a connection part and an expansion part; a cavity is formed inside the clamp body; the cavity passes through the connection part and the expansion part; the connection sleeve is fixedly arranged inside the connection part of the clamp body and is coaxial with the clamp body; the pull rod is connected with the inner wall of the connection sleeve in a sliding manner and is coaxial with the connection sleeve; a cavity between the pull rod and the expansion part is filled with liquid plastic; the pull rod is used for pushing the liquid plastic inside the cavity; the expansion sleeve fixedly sleeves the expansion part of the clamp body; the positioning sleeve fixedly sleeves the connection part of the clamp body and is connected with the expansion sleeve end to end; the forcing screw is arranged at the front end of the expansion part of the clamp body and is coaxial with the cavity. With the adoption of the hydraulic clamp, the part deformation can be effectively prevented and alleviated; the machining efficiency is high; the labor intensity of workers is alleviated; machined parts have higher precision and interchangeability; the hydraulic clamp is easy to manufacture and maintain.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to a hydraulic liquid plastic expanding mandrel clamp. Background technique [0002] Although CNC machine tools have been widely used, domestic CNC machine tools are still in the use of chucks and collet chucks, and special-shaped tooling has not been widely used, especially thin-walled parts processing tooling. How to use CNC machine tools to process parts more efficiently, and the way of processing special-shaped parts with special-shaped tooling will be a better, faster and more cost-effective processing mode! The processing efficiency of parts processed with special-shaped tooling has been verified through experiments that its efficiency is more than 50% higher than that of process processing or manual tooling. [0003] The pace of life in modern society is becoming more and more tense, and cars have become a must-have item for families. The overall welding of cars is co...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the prior art has not yet disclosed the special-shaped tooling fixture used for precisely machining the thread of the welding cylinder barrel, the present invention provides a hydraulic liquid-plastic expansion mandrel fixture

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