THE APPLICATION OF LEAST SQUARE IN PRECISION CYLINDRICAL GRINDING

摘要

In this paper, PMAC(Programmable Multi-Axis Controller) is used as machine tool CNC system to control linear motor's micro-movement and to achieve online measurement of part circularity error. The part circularity is calculated through least square method by measured circularity error. The part circularity error can be decreased by PID control of PMAC, so precision cylindrical grinding can be achieved.