| 摘要 |
<p>An apparatus and a method for checking the machining process of a machine tool, for instance a grinding machine (1), to get information about the quantity of the material removed and the wear condition of the grinding wheel (9). The apparatus includes an acoustic sensor (19) adapted to detect the acoustic signals generated by contact between the grinding-wheel and the piece (13) to be machined, and a force-detecting sensor (21) adapted to detect the force applied between grinding-wheel and piece during the machining. The method includes processing signals provided by both the sensors, to define time intervals (ti-tf) on the basis of the signals (SA) of the acoustic sensor, and to monitor the signals (SF) of the force-detecting sensor in the so-defined intervals.</p> |
