Grinding method for cambered surface soft belt of main bearing ring

By using a robot-controlled diamond grinding wheel combined with a post-processing method, the problems of long grinding time, low precision, and dust hazards in the soft belt area of ​​the main bearing ring arc surface are solved. This achieves efficient and safe grinding of the soft belt area and is suitable for processing the soft belt area of ​​main bearing ring arc surfaces of different sizes and models.

CN121733347APending Publication Date: 2026-03-27CHINA RAILWAY CONSTR HEAVY IND
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Patent Information

Application Number
CN202511959316.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-24
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

In the existing technology, grinding of the soft band area of ​​the arc surface of the main bearing ring has problems such as long time consumption, low production capacity, low precision, dust hazards to health, high cost, and large space occupation. In particular, manual grinding is difficult to control the grinding depth and surface roughness, and machine tool grinding is expensive.

Method used

A robot-controlled diamond grinding wheel is used to reciprocate and grind the curved soft band area along a first straight path, an arc path, and a second straight path. By differentiating the feed speed, combined with the use of flap wheels and polishing wheels in post-processing, the accuracy and smoothness are improved.

Benefits of technology

It enables rapid and high-precision grinding of soft belt areas, solving the efficiency and safety issues of manual grinding, reducing costs and space occupation, and adapting to the grinding needs of soft belt areas on the arc surface of main bearing rings of different sizes and models.

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Abstract

The invention relates to the technical field of main bearing machining, in particular to a main bearing ring cambered surface soft belt polishing method which comprises the following steps: determining polishing paths, namely a first linear path, an arc path and a second linear path; and a robot is adopted to control a first polishing piece to polish the cambered surface soft belt area in a reciprocating mode according to the first linear path, the arc path and the second linear path. The problems that in the prior art, manual polishing is long in consumed time, low in productivity and low in precision can be solved, and polishing of cambered surface soft belt areas of main bearing rings of different sizes and models can be completed. In addition, the robot is adopted for controlling grinding, the problem that dust generated by manual grinding harms health is solved, and the problems that cost is high and occupied space is large due to the fact that a machine tool is adopted for grinding can also be solved.
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