Improvement Of Two-Station Auto Boring Dynamic Balancing Machine

This article is for dynamic balancing of middle/mini-sized motor rotors, including automation, precision of emendation and production efficiency.Both of the hardware and software schemes of the Two-Station Boring Balancing Machine are constructed completely. Deep research on the error from the real system has been done, which is helpful to the precision improving. The manual placement is considered as the major error sources of emendation phase; while the grating error is the major error sources of emendation quantity, which is about±0.008mm. The radius error is less than 0.05mm. The time is not more than 40s, after being adjusted, taking the rapidity and stability into consideration.The de-weight strategy has been improved. Component correction, excess quantity correction, secondary plane separation and tooling preset scheme are discussed in detail. Component correction has been realized for the segmented rotor. Excessive quantity correction is used to process those rotors whose initial unbalance is greater than certain threshold, and that prevents the occurrence of phase overlapping. The improved algorithm of secondary plane separation greatly reduced the computation-time overhead. Compared with traditional methods of tool setting, the proposed method is cost effective and lends itself to improve correction accuracy. By using these strategies,the Reduction rate of one-time unbalance is finally up to 85%.Both security and precision of the system have been improved after the method of tool wear condition monitoring was applied. By classifying the wear condition, neural network model base on regression technology is constructed, which is used to describe the relation of cutting parameter and the tool wear condition.