| 摘要 |
PURPOSE:To make a machining inspection performable without removing a workpiece from a work table by constituting an error of electrodischarge machining so as to be detected from the measured gap while measuring a gap between a wire electrode and the workpiece after machining is over. CONSTITUTION:A measuring voltage V0 is improved on a gap between wire electrode 9 and a workpiece 1, while this wire electrode 9 is moved in a direction orthogonal with the forward direction at slow speed by operation of a measuring control part 29, and a fact that the voltage V detected via a voltage detect 31 comes to zero, namely, the wire electrode 9 and the workpiece 1 are made contact with each other is detected. With the detected point of time as a criterion, the wire electrode is put back onto a measuring route, and it proceeds to the next measuring point. A working error recognizing part 35 recongnizes a position of the actual machining to each measuring point, and also it recognizes an error of the actual machining curve to its ideal machining curve.
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