Development of Reliability Test System Based on Working Principle and Fault Analysis of Motorized Spindle

In order to expose the faults and weak links of the motorized spindle as early as possible in the reliability test, this paper analyzes the structure, working principle, loading mode and faults of the motorized spindle, and develops the reliability test bench of the motorized spindle based on towing and loading controlled by the direct torque technology, and The running test of the developed test bench is carried out to verify the practicability of the test bench.