Machining, Measurement, and Control Laboratory

Measurement and compensation of motion errors on 5-axis machine tool by R-test
Chiaki Oyama, Soichi Ibaraki, Hisashi Otsubo

5-axis machine tool intended in this study has three linear axes and additional two rotary axes. Because of its composition, errors of each axis and assembly errors are integrated and they influence the relative position between the tool and the workpiece. Efficiently investigation method of motion errors is not conformed enough so far. By experiment, it is sure that errors are varying as the work table rotates. The objective of this paper is how to evaluate the position-dependent geometric errors of 5-axis machine tool and make error map with the use of the measurement device, called "R-test".
Key words: R-test, 5-axis machine tool, Measurement, Position-dependent geometric errors.