Wire electrical discharge machine
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsYouichi Ootomo, Toshio Moro
Life of this patent
Estimating the term…
Abstract
A wire electrical discharge machine includes a wire electrode for causing electrical discharge to take place between the same and a workpiece; a first roller and a second roller for taking up the wire electrode while nipping the same; a perpendicularly moving mechanism for moving the second roller in a perpendicular direction with respect to the first roller; and a liquid supplying mechanism for guiding the wire electrode into a gap between the first roller and the second roller by a liquid.
Claims4
A wire electrical discharge machine comprising:
- a wire electrode for causing electrical discharge to take place between the wire electrode and a workpiece;
- a first roller and a second roller for feeding the wire electrode while nipping the wire electrode;
- perpendicularly moving means for moving the second roller in a perpendicular direction with respect to the first roller;
- liquid supplying means for guiding the wire electrode into a gap between the first roller and the second roller by means of a liquid;
- a shaft coupled to the first roller or the second roller;
- a housing for incorporating the shaft;
- a recessed portion provided on a side surface of the first roller or the second roller coupled to the shaft;
- and
- a projecting portion provided on the housing so as to be loosely inserted in the recessed portion,
- wherein a bearing for engagement with the shaft is fixed to the projecting portion.
A wire electrical discharge machine comprising:
- a wire electrode for causing electrical discharge to take place between the wire electrode and a workpiece;
- a first roller and a second roller for feeding the wire electrode while nipping the wire electrode;
- perpendicularly moving means for moving the second roller in a perpendicular direction with respect to the first roller;
- liquid supplying means for guiding the wire electrode into a gap between the first roller and the second roller by means of a liquid;
- a first shaft and a second shaft whose one ends are respectively coupled to the first roller and the second roller;
- a housing for incorporating the first shaft and the second shaft;
- a first gear coupled to another end portion of the first shaft;
- and
- a second gear coupled to another end portion of the second shaft and meshing with the first gear.
A wire electrical discharge machine comprising:
- a wire electrode for causing electrical discharge to take place between the wire electrode and a workpiece;
- a first roller and a second roller for feeding the wire electrode while nipping the wire electrode;
- perpendicularly moving means for moving the second roller in a perpendicular direction with respect to the first roller;
- liquid supplying means for guiding the wire electrode into a gap between the first roller and the second roller by means of a liquid;
- a shaft which is detachably fitted in the first roller or the second roller;
- and
- a spacer provided on a side surface of the first roller or the second roller, the spacer being detachably fitted on the shaft.
Dependencies are inferred from the claim text.