Investigation of Force-Sensor-Integrated Motorized Spindles and Diagnosis of Unbalanced Tool Operation

The motorized spindles play an important role in high precision and high speed metal cutting, and increase productivity benefit in die and mode, medical, and aerospace industries. As a result, improper high speed operation of bearings and system causes lower reliability. Lot of technology and sensors are development to monitor the failure of improper operation of motorized spindle. In this paper, one piezo-electric force sensor is developed. And, One Class SVM is investigated to monitoring and detects the unbalanced tool operation. The result shows the monitoring system is validated successfully.