Research on High-speed Precision Grinding of Non-circular Parts Based on PMAC

摘要

This paper presented a new grinding method in relation to the focus of high-speed precision machining for non-circular parts. We designed and integrated a set of grinder NC system, refitted an experimental NC grinder and researched into the control core of the NC grinder-open Programmable Multi-Axis Controller (PMAC), linear motor feed unit and high-speed electrical spindle unit. The numerical PID principle was used to adjust the system's dynamic and static performance. Time-base method of PMAC and the linear motor's micro-feed motion and the electrical spindle's high-speed performance were used to accomplish the grinding manufacture of high-speed performance of non-circular parts. Experiment researches have demonstrated this method could suffice part manufacture precision and provide a fine method for achieving the precision grinding of non-circle parts.