Abstract:

The spindle system plays an important role in CNC Machine,providing cutting torque and the cutting speed for metal removal.Its performance has a direct influence on the processing precision and efficiency of the machine.This paper analyzes the failure mechanism of the major component of CNC machine spindle system,and a series of monitoring schemes are designed on basis of the failure mechanism by means of operating information of the key component from the collecting Spindle System of the outer sensor.The wavelet is also adopted to analyze its operating information so as to monitor literally for the spindle system.The results indicate that this scheme can detects the fault condition of the key component of machine spindle system effectively.

Key words: spindle system;spindle;bearing;gear;spindle motor;wavelet analysis;fault monitoring