Cutting-in type centerless grinding machining method and device for ceramic material stepped shaft part

Abstract

The invention discloses a cutting-in type centerless grinding machining method for a ceramic material stepped shaft part. A dressing wheel is arranged at the side part of a guide wheel, tool electrodes are correspondingly arranged on the side part of a grinding wheel and the side part of the dressing wheel, when in machining, an electrolytic mode is adopted to enable a metal bonding agent on the surface of the grinding wheel and the dressing wheel to occur anodic dissolution so as to realize online synchronous dressing and the grinding wheel and the dressing wheel are enabled to be dressed onthe same reference, and then higher dressing precision is guaranteed on a mechanical structure; and in addition, online electrolytic dressing can avoid surface passivation and blockage of the grindingwheel, the grinding wheel can maintain good grinding performance for a long time, meanwhile, the online dressing of the guide wheel stabilizes the contact friction coefficient of the guide wheel anda workpiece, thereby obtaining higher workpiece machining precision and guaranteeing the surface quality of the workpiece, and meanwhile, higher machining efficiency is obtained. Correspondingly, theinvention further provides a cutting-in type centerless grinding machining device for the ceramic material stepped shaft part. The device can realize efficient and high-precision grinding machining ofthe ceramic material stepped shaft part.

Description

technical field [0001] The invention relates to a high-efficiency, high-precision centerless grinding method and device for stepped shaft workpieces made of ceramic materials, and belongs to the technical field of precision and ultra-precision machining. Background technique [0002] Stepped shaft parts are widely used in machinery, aviation, aerospace and other industries. The material, surface quality and comprehensive mechanical properties are very demanding. The strength of the stepped shaft has a great influence on the life of the whole machine, and its quality directly affects the work of the machine. performance and service life. With the development of high-speed and high-precision mechanical equipment spindles, ceramic materials have excellent comprehensive properties such as high hardness, high rigidity, high temperature resistance, and corrosion resistance, and are one of the best materials for manufacturing stepped shafts. [0003] Centerless grinding technology...

AI Technical Summary

Problems solved by technology

The grinding wheel dresser and guide wheel dresser configured on the centerless grinding machine are mainly diamond pens that can be adjusted independently, but since each component moves independently, the motion error introduced is relatively large, which makes the dressing accuracy low and the dressing process takes less time. Therefore, it is difficult to meet the high-efficiency and high-precision processing requirements of the workpiece

[0005] Therefore, there is an urgent need to develop a new centerless grinding technology for stepped shaft workpieces to effectively solve the problems of low dressing accuracy of grinding wheels and guide wheels in centerless grinding, which affects machining accuracy, and the time-consuming dressing process affects processing efficiency.

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