Abstract
On-machine measurement using a laser displacement sensor, with rotating a workpiece on a 5-axis machine tool, has a strong advantage in its measurement efficiency. In such measurement, miscalibrations of a laser displacement sensor' position and direction, as well as motion errors of the machine's rotary axes, are clearly major contributors for the measurement uncertainty. This paper first formulates the influence of miscalibration of the sensor's installation on the measurement uncertainty. Then, based on the present formulation, a method to identify location errors of rotary axes, by using the present on-machine laser measurement system, is proposed.
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