Design of Control System for Bone Drilling Robot Based on Vibration Signal Feedback

According to the actual needs of laboratory bone drilling robot and bone drilling monitoring process, the hardware system with DSP + CPLD as the main controller is designed and implemented. According to the control data transmitted by the DSP, CPLD generates the corresponding square wave signal and motor direction signal, and outputs the signal to the motor driver to drive the motion of the bone drilling and grinding operation robot. The acceleration sensor is fixed on the drilling power tool to collect vibration information during drilling. After filtering the collected acceleration signal, the fast Fourier transform is performed by using DSP to extract the amplitude of the integral harmonic component of the spindle frequency and transmit it to the computer. The data comparison shows that the sensor regulating circuit designed in this paper can meet the design requirements. Digital filtering algorithm can effectively eliminate random interference and high frequency interference in drilling process.