| 主权项 |
1. A wire electric discharge machine provided with a disconnection repairing unit, including
a disconnection repairing unit for performing, when a wire electrode is disconnected during electric discharge machining, automatic connection on a machined machining route, returning to a position where a wire is disconnected along the machining route, and resuming the electric discharge machining from a disconnection position of the wire electrode, and configured to perform a core fixing by, electric-discharge machining of a workpiece with electric discharge generated between the wire electrode and the workpiece, and depositing and accumulating machining wastes caused by the electric discharge machining to thereby fix a core generated by the electric discharge machining and the workpiece, and, machine the workpiece along the machining route while controlling the respective moving axes and calculating coordinates of the respective moving axes and a machining distance according to a machining program, and the wire electric discharge machine provided with a disconnection repairing unit comprising: a core-fixing-end-position storing unit for storing a core fixing end position of a depositing and accumulating operation machined most lately among positions at which the depositing and accumulating operation for the machining wastes by the core fixing function ends in a machining shape currently being machined, and the wire electric discharge machine executes automatic connection with the disconnection repairing unit between the disconnection position and the core fixing end position. |
