| 摘要 |
The position of an operating device (2) with respect to a piece (P) is checked and corrected by associating to the operating device (2) a measuring device (5) carrying a plurality of sensors (505) located at given positions with respect to the operating device (2), the sensors (505) being adapted to measure, by means of a contactless technology, the distances of the sensors themselves from a surface (À) of the piece (P) along respective directions (I, r, s) having given orientations. The measurement values detected by said contactless sensors (505) are processed to obtain the value of at least one angle indicating the orientation of a main operative axis (X1) of the operating device (2) with respect to an operation axis (X2) defined by said surface (À) of the piece (P). The information obtained by means of said processing step is used for generating, if necessary, a signal for controlling said positioning apparatus (1) in order to position said operating device (2) according to a desired orientation with respect to the piece (P). |
