| 摘要 |
The invention relates to a method and a corresponding system for preparing to operate a tactile probing coordinate measuring machine (1), more particularly for preparing to calibrate a coordinate measuring machine (1) by tactile probing of a calibrating element (2, 4) by means of a probing device (3, 8) arranged on the coordinate measuring machine (1), said method comprising the following steps: measuring the surface of a probing ball (3) that deviates from an ideal shape of a ball as a probing element of the coordinate measuring machine (1), or measuring the surface of a calibrating ball (2, 4) that deviates from an ideal shape of a ball as a calibration normal, by means a surface measuring device (21), and determining coordinates of a plurality of real surface points on the probing ball or calibrating ball (2, 4) in a coordinate system of the probing ball or calibrating ball (2, 4); placing a reference feature (14; 15; 16) of the probing ball (3) or the calibrating ball (2, 4) in relation to the coordinate system of the probing ball (3) or the calibrating ball (2, 4); mounting the probing ball (3) on a tactile probing coordinate measuring machine (1) or arranging the calibrating ball (2, 4) in the measuring range of the tactile probing coordinate measuring machine (1); and placing the coordinate system of the probing ball (3) or the calibrating ball (2, 4) in relation to a coordinate system of the coordinate measuring machine (1) in such a manner that information about positions of the real surface points on the probing ball (3) or calibrating ball (2, 4) is available or can be determined in the coordinate system of the coordinate measuring machine (1). |
