Process for recognizing rejects when machining workpieces of the same construction as well as the associated numerically controlled workpiece machining device

摘要

In a method for recognizing rejects when machining workpieces (14) of the same construction by means of a numerically controlled workpiece machining device (10), comprising the following steps: a) machining a workpiece (14) by specifying a target tool path (34) for a tool ( 12) the workpiece machining device (10), and b) regulating a working distance (22) of the tool (12) from the workpiece (14) to a defined target distance, so that the tool (12) when machining the workpiece (14) along the target tool path (34) is moved on a distance-controlled actual tool path (36), it is checked according to the invention whether the distance-controlled actual tool path (36) from the target tool path (34) applicable to this workpiece (14) to selected, in particular straight or circular ones Contour sections (40) of the machined workpiece (14) deviates by less than a predetermined tolerance value. If so, the processing of the next workpiece (14) is continued or, if not, a message is output that the processed workpiece (14) has been recognized as scrap.