Recently, China's self-developed "multi-pole electromagnetic chuck type super-finishing machine tool" passed the expert technology appraisal organized by China Machinery Industry Federation. Relevant experts pointed out that the application of the machine tool will fill the domestic gap, improve the level of equipment manufacturing industry in the old industrial bases in Northeast China, and promote the transformation of China from a large bearing country to a bearing power country, and then play an important role in promoting the overall level of China's mechanical processing.
It is reported that the overall technology of China's bearing super-precision equipment is still not mature. Many enterprises still use roller-type soil equipment and the most original manual polishing process. The surface roughness, waviness and vibration value of the bearing channel after processing are not up to To the industry standards, the qualification rate is low, the product accuracy level is low, and the competitiveness is poor.
The ultra-finishing machine tools imported from the United States, Germany, Japan and other countries, due to the use of the pressure roller type and the roller-type principle, are not only expensive, but also have an unsatisfactory processing effect. The workpieces are generally indented and scratched. Therefore, most of the imported equipment is actually idle. The multi-electromagnetic chuck-type bearing super-finishing machine tool that passed the appraisal is the Torch Plan of the Ministry of Science and Technology and the industrialization demonstration project of the National Development and Reform Commission. After several years of efforts, the prototype has been completed and the small-volume production of the product has been completed. Performance test and actual production assessment, all technical performance indicators have met the design requirements, completely solved the technical defects commonly found in press rolls and roller-type super-precision equipment, and outstanding advantages in improving quality, reducing consumption and improving production efficiency. At the same time, the price is only one-tenth of the imported products.
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