Bearing seat machining flat fixture

CN224309639UActive Publication Date: 2026-06-02NANJING CHENWEI MACHINERY MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING CHENWEI MACHINERY MFG CO LTD
Filing Date
2024-10-29
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing methods for machining the contact surfaces of bearing housings and connecting rods can easily lead to flatness and outer diameter errors when milling surfaces on a vertical machining center, affecting assembly stability and overall machine performance.

Method used

A machining fixture for bearing seats is designed, including a machining fixture positioning plate, a three-jaw chuck, and a lathe tailstock center. It utilizes the workpiece process positioning datum, clamps it on a hydraulic or ordinary chuck, and fixes it with the lathe tailstock center to achieve integrated machining of the plane and outer diameter.

Benefits of technology

It improves machining accuracy and stability, ensures the perpendicularity and parallelism requirements of the workpiece mounting surface, reduces vibration, and enhances the overall assembly stability of the machine.

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Abstract

This utility model provides a machining fixture for bearing seats, comprising a machining fixture positioning plate, a three-jaw chuck, and a lathe tailstock center. The machining fixture positioning plate is a circular plate-shaped workpiece structure with a central opening. The three-jaw chuck is fixedly mounted on one side of the machining fixture positioning plate. The lathe tailstock center is fixedly mounted on the other side of the back of the machining fixture positioning plate. This fixture utilizes the workpiece process positioning datum to design a lathe fixture that can be used on a hydraulic or conventional chuck with a clamping body, relying on the tailstock center for clamping force, to complete the integrated machining of the plane and outer diameter on a lathe, better ensuring the perpendicularity and parallelism requirements of the mounting surface.
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