A driving shaft retainer turning positioning tool

By setting positioning blocks with contoured arc surfaces and elastic pads on the jaws of the three-jaw chuck, the problem of unstable cage positioning is solved, and the accuracy and stability of cage turning are achieved, adapting to the needs of different cage models.

CN224333443UActive Publication Date: 2026-06-09SHANGHAI YAO YUAN CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI YAO YUAN CORP
Filing Date
2025-06-24
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In the prior art, the inner wall of the cage is spherical, and the contact area between the positioning block of a common three-jaw chuck and the cage is small, resulting in unstable positioning and clamping, which affects the turning accuracy.

Method used

Positioning blocks are installed on the jaws of the three-jaw chuck. The outer wall of the positioning block is provided with a contoured arc surface that matches the inner spherical surface of the cage, and the positioning stability is enhanced by mounting bolts and elastic pads.

Benefits of technology

The increased contact area between the locating block and the spherical surface inside the cage improves positioning stability, reduces wobbling and offset, ensures machining accuracy, and allows for the replacement of locating blocks to adapt to different cage models, thus improving tooling usability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a driving shaft retainer turning positioning tool, relates to the field of improving the stability of retainer positioning and clamping and guaranteeing the precision of turning processing of the outer spherical surface of the retainer, three positioning blocks are respectively arranged on three clamping claws of a three-jaw chuck, and a profiled curved surface is integrally turned and formed on the outer side wall of each positioning block, and the profiled curved surface is matched with the inner spherical surface of the retainer. The application improves the stability of retainer positioning and clamping and guarantees the precision of turning processing of the outer spherical surface of the retainer.
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