Wire electric discharge machining apparatus
AssigneeSodick Co., Ltd.
InventorsTsuyoshi Takeda, Hiroki Sato, Tsubasa Kuragaya
Life of this patent
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Abstract
A guide pipe provided along a movement path of a wire electrode between a direction change pulley and a winding device and guiding the wire electrode has antistatic properties. A gas-liquid mixed fluid is supplied into the guide pipe. A suction nozzle passes between a pair of rollers of the winding device and is directly or indirectly connected to an outlet side of the guide pipe. The suction nozzle suctions the gas-liquid mixed fluid in the guide pipe and a tip of the wire electrode by a suction device and captures the wire electrode. The captured wire electrode is wound by the winding device.
Claims10
A wire electric discharge machining apparatus, comprising:
- a lower arm, supporting a lower wire guide unit so as to be located in a machining tank;
- at least one direction change pulley, provided on the lower arm so as to be located below the lower wire guide unit;
- a winding device, comprising a pair of rollers provided so as to be located outside the machining tank;
- and,
- as a conveyance device:
- a guide pipe having antistatic properties, provided along a movement path of a wire electrode between the at least one direction change pulley and the winding device, and comprising therein a first communication path allowing the wire electrode and a gas-liquid mixed fluid in which a gas and a machining fluid are mixed to pass therethrough;
- a suction nozzle, provided on a downstream side in a feeding direction of the wire electrode of the winding device, and comprising therein a second communication path allowing the wire electrode and the gas-liquid mixed fluid to pass therethrough and a first discharge path discharging the gas-liquid mixed fluid;
- and
- a suction device, connected to the first discharge path and discharging the gas-liquid mixed fluid from the first discharge path.
Dependencies are inferred from the claim text.