Research on the on-Machine Calibration Method of Touch Trigger Probe Based on Diamond Lathe
The touch trigger probe is an important part of the contact on-machine measurement system.Ef-fective calibration of the probe can improve the on-machine measurement accuracy.The on-machine cali-bration of the touch trigger probe includes the pre-travel error calibration of the probe and the spatial posi-tion calibration of the probe.In order to strip the volumetric error of the measurement system,the volumet-ric error model of the measurement system is established based on the homogeneous coordinate transforma-tion.On this basis,the pre-travel error calibration method and the spatial position calibration method of the touch trigger probe are proposed.The probe of the contact on-machine measurement system based on dia-mond lathe is calibrated by the probe calibration method proposed in this paper.The planar,cylindrical and spherical features are measured by the on-machine measurement system.The measurement results verify the effectiveness of the calibration method.
NETL
NSTL
万方数据
维普
