Machining, Measurement, and Control Laboratory

A Study on Contouring Motion Control of Machine Tools
First Report: Analysis of Dynamic Motion Error

Cefu Hong, Kotaro Nagaoka, Atsushi Iizuka, Atsushi Matsubara, Soichi Ibaraki

In our research, we analyze control methods to obtain high accuracy synchronous motion in feed-drive system of machine tool. First, we present the definition of contouring motion error for error diagnosis. Second, the influences of the command and control characteristics on the dynamic contouring errors are analyzed by using magnified error profile. Then, a diagnosis method with the square motion is proposed and carried out in the experiment.
Key Words: machine tool, contouring motion error, synchronous control, error diagnosis