Patent ID: 8835793

Claim:
A fixing mechanism of a replaceable wire guide of a wire electric discharge machine, the wire guide being one of upper and lower wire guides of the wire electric discharge machine, the wire electric discharge machine configured to support a wire electrode by the upper and lower wire guides and relatively move the wire electrode with respect to a workpiece so as to machine the workpiece, the fixing mechanism comprising: a wire guide supporting part having a wire guide supporting face on which the wire guide of the wire electric discharge machine is fixed; and a fixing unit, wherein: the wire guide supporting part further has at least two planar parts not parallel to each other and having faces different from the wire guide supporting face; the wire guide has planar parts configured to be abutted on the two planar parts of the wire guide supporting part; and the fixing unit is configured to fix the wire guide on the wire guide supporting part in a state where the two planar parts of the wire guide supporting part and two of the planar parts of the wire guide are respectively abutted on each other.