A method and system for intelligently adjusting the bearing pretightening force of the main shaft

Abstract

The invention provides a method and system for intelligently adjusting the bearing pretightening force of the main shaft. The method and system are provided with a positioning guide block in the main shaft device, and the positioning guide block is driven by hydraulic pressure to move and drive the outer ring of the bearing to move, so that The contact angle of the inner and outer rings of the bearing can be adjusted to play the role of adjusting the preload of the bearing. At the same time, the application has established the best matching data table for different materials and preload in advance, and can automatically select the most suitable preload based on the material of the workpiece to be processed and automatically complete the preload operation of the bearing, so that The size of the bearing preload can be matched with the type of plate to be processed. In addition, the present application can also judge the actual wear condition of the bearing by detecting the moving distance of the outer ring of the bearing and the current preload of the bearing, and combining the theoretical relationship between the position of the outer ring of the bearing and the preload of the bearing. The amount of oil supply should be properly corrected in order to compensate for the impact caused by long-term wear of the bearing.

Description

technical field [0001] The present disclosure relates to the field of spindles, and more specifically, to a method and system for intelligently adjusting bearing pretightening force of a spindle. Background technique [0002] According to the operating requirements of the lathe, when using the lathe to turn parts, the hardness of the processed part should be determined first, because the optimal processing speed and optimal stiffness of the lathe corresponding to parts with different hardness are different, such as steel, The optimal processing speed and optimal rigidity of lathes corresponding to workpieces made of alloy, copper, aluminum and other materials are different. When processing parts, if the processing speed and stiffness of the lathe are not selected correctly, the parts processed by the lathe cannot meet the requirements of use. The stiffness of the lathe spindle is directly determined by the preload of the spindle bearing. In order to meet the processing req...

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Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a method for intelligently adjusting the bearing pretightening force of the main shaft, which can solve the problem that the existing lathe processing cannot intelligently adjust the main shaft system according to the type of the processed parts preload problem

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