A new structure of ultra-precision double-sided lapping stone dresser

By designing a double-sided dresser consisting of a metal base disc and an outer grinding ring, the equal-pressure double-sided synchronous dressing of the grinding disc is achieved, which solves the problem of uneven dressing of the grinding disc in traditional dressing methods, improves the dressing accuracy and efficiency, simplifies the operating process, and ensures the stable operation of the equipment and the quality of the substrate.

CN119704048BActive Publication Date: 2025-10-17SHENZHEN GREATWALL KAIFA PRECISION TECH CO LTD
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Patent Information

Application Number
CN202411992956.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-10-17
Estimated Expiration
2044-12-31

AI Technical Summary

Technical Problem

Existing double-sided grinders require disassembly during the grinding disc dressing process, which is complicated to operate and easily leads to uneven grinding disc dressing, affecting substrate quality and hard disk performance.

Method used

A new type of ultra-precision double-sided grinding stone dresser is designed. It consists of a metal base plate and an outer grinding ring. The outer grinding ring cooperates with the teeth of the grinding plate to achieve equal pressure double-sided synchronous dressing, avoiding the need to disassemble the equipment. Steel balls and elastic structure are used to ensure uniform dressing.

Benefits of technology

It achieves uniform dressing of the grinding disc surface, improves dressing accuracy and efficiency, reduces manual intervention, reduces operating difficulty, and ensures stable operation of the equipment and substrate quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a novel structure super-precision double-sided grinding stone dresser, which comprises a double-sided dresser disc, wherein the double-sided dresser disc is composed of a metal base disc and an outer grinding ring; the outer grinding ring is integrally formed at the outer edge position of the metal base disc; a step part is arranged at the combined position of the metal base disc and the outer grinding ring; the inner part of the metal base disc is provided with a load hollow part; and a tooth groove is arranged on the outer wall of the outer grinding ring. The tooth groove on the outer wall of the outer grinding ring is matched with a revolution gear and an inner groove ring of a double-sided grinding machine to provide higher precision and efficiency for the dressing of the grinding disc; the double-sided dresser disc can generate contact pressure between the upper and lower grinding discs to realize uniform grinding dressing, can ensure that the upper and lower grinding discs are kept flat during the grinding process, avoids the common uneven surface of the grinding disc, and improves the grinding dressing precision and the dressing efficiency.
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Citation Information

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