R-test analysis software for measurement and compensation of error motions of five-axis machine tools
-- Application to a five-axis machine tool with one rotary axis in spindle side and one rotary axis in workpiece side --
Yuu Nagai Soichi Ibaraki, Hisashi Otsubo, Yasutaka Sakai, Shigeki Morimoto, Yosuke Miyazaki
Abstract
The R-test is an instrument to measure three-dimensional displacement of a precision sphere, attached to a machine spindle, relative to a work table by using three displacement sensors. Its application to error calibration for five-axis machine tools has been studied. This paper presents a software to analyze measured R-test trajectories for error diagnosis and numerical compensation of rotary axes location errors and error motions. Experimental demonstration of its application to a five-axis machine tool with one rotary axis in spindle side and one rotary axis in workpiece side is presented.
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