An auxiliary locking assembly for a broaching machine fixture.

CN224424463UActive Publication Date: 2026-06-30HUNAN JINQIE CNC MACHINE TOOL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN JINQIE CNC MACHINE TOOL CO LTD
Filing Date
2025-07-01
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

When existing end face broaching machine fixtures are operated under long-term, high-frequency, and high-load conditions, the locking mechanism is prone to the accumulation of small gaps or elastic deformation, which causes the fixture to shake, affecting machining accuracy and production efficiency. Furthermore, there is a lack of effective measures to compensate for the performance degradation of the locking mechanism.

Method used

An auxiliary support assembly, including a self-locking assembly and a limiting assembly, is adopted. Through radial self-locking and axial limiting, together with the clamping assembly, bidirectional rigid fixation of the clamping end of the fixture is achieved, eliminating fixture wobbling and improving machining accuracy and stability.

Benefits of technology

It effectively solves the problem of performance degradation of the locking mechanism after long-term use of fixtures, improves the machining accuracy of end face teeth, reduces workpiece scrap rate and production costs, improves production efficiency, and extends equipment service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides an auxiliary locking assembly for a broaching machine fixture, comprising: a fixture body and an auxiliary support assembly, the auxiliary support assembly being coaxially disposed at the clamping end of the fixture body; an annular groove is formed on the outer circumferential surface of the clamping end of the fixture body; the auxiliary support assembly includes: a mounting base, a self-locking component, and a limiting component; a clamping hole is formed in the middle of the mounting base; the self-locking component and the limiting component are respectively disposed on the mounting base at both ends of the clamping hole along the axial direction; the limiting component can tighten and limit the workpiece clamped by the fixture body; the self-locking component can be embedded in the annular groove, and through cooperation with the limiting component, a bidirectional rigid fixation of the clamping end of the fixture body is achieved. This invention achieves bidirectional rigid fixation of the clamping end of the fixture body through the cooperation of the self-locking component, the limiting component, and the tightening component in the auxiliary support assembly, thereby improving the machining accuracy of the end face teeth and reducing the workpiece scrap rate and production costs.
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