Internal spline ultrasonic vibration internal infusion lapping stick

CN118544261BActive Publication Date: 2026-05-26HARBIN DONGAN ENGINE GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN DONGAN ENGINE GRP
Filing Date
2024-06-28
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing technologies for grinding hardened internal splines suffer from problems such as low precision, high risk of burns, and uneven application of abrasives, making it difficult to guarantee high precision and stability of internal splines, especially in precision fields such as aerospace.

Method used

An internal spline ultrasonic vibration internal infusion grinding rod is used, which combines ultrasonic vibration technology and an internal infusion system. Through the design of the grinding rod body, the flow guide core and the lower end cap, the grinding fluid is evenly distributed and cooled, which improves grinding efficiency and accuracy and reduces the risk of burns.

Benefits of technology

It significantly improves the grinding efficiency and precision of internal splines, ensures the uniform and stable introduction of grinding media, avoids overheating and burns, and ensures high-quality processing of internal splines.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses an internal spline ultrasonic vibration internal infusion grinding rod, comprising a grinding rod body, a flow guide core, and a lower end cap. The grinding rod body is a hollow cylindrical shell with open ends. Multiple grinding teeth are densely arranged along the circumferential direction on the outer side wall of the lower part of the grinding rod body, each grinding tooth being arranged axially. A grinding fluid inlet is provided at the upper end of the grinding rod body. The lower end cap is detachably installed within the open end of the grinding rod body. The flow guide core is axially inserted and fixed inside the grinding rod body. Multiple grinding fluid outlet holes are evenly distributed on the side wall of the grinding rod body, extending through the tooth surface and tooth tip of the grinding teeth and perpendicular to the tooth surface, tooth tip, or tooth root. This invention not only significantly improves grinding efficiency but also ensures higher processing precision and surface quality.
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