Calibration of a Laser-Plane Sensor in 5-Axis Machine Tool
The purpose of this paper is to propose a calibration procedure of the laser-plane sensor for On-machine Measurement (OMM) in a 5-axis machine tool. During on-machine measurement, the digitizing process of the part geometry is performed without removing the part from its set-up when the machining process is stopped. Being given the 5 degrees of freedom and the rotation of the spindle, it is possible to improve the accessibility of the sensor. The laser-plane sensor positioned in the spindle reduces the measurement time; thus allowing a fast decision-making concerning the geometrical conformity of the manufactured part and the potential machining corrections. For on-machine measurement in a 5-axis machine, it is necessary to perform a 5-axis calibration of the laser-plane sensor that is rarely addressed in literature. This calibration procedure allows to determine the orientation and position of the sensor relative to the machine frame, and to define the origin of the sensor frame.
KeywordsOn-Machine Measurement Calibration Laser-plane sensor 5-axis machine-tool Scan path
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