Open CNC motion control system based on STM32F103ZET6

TANG Ding-bing，GAO Xiao-ding，XUE Shi-run

（Mechanical and Electrical engineering college of Xi'an Polytechnic University，Xi'an 710048，China）

Abstract：In order to solve the problems of missing a relatively open environment for college students to learn CNC technology，the embedded technology was applied to a self-built open CNC platform，the machining principle of open architecture CNC machining with embedded technology was analyzed. Based on STM32FZET6 controller and made use of PWM control technology，two two-phase hybrid stepping motor was controlled；based on the feedback information of speed and position were provided by grating ruler and combined with PID control algorithm，a high precision and good stability control loop control system was established. The reliability and stability of the control system are validated by creating the mathematical mode of control system for Simulink simulation. The open CNC motion control system is meaningful for building a CNC system for teaching.