| 主权项 |
1. A wire electric discharge machine, in which a wire electrode is stretched between an upper head section supported by an upper head support portion and a lower head section supported by a lower head support portion and serves to machine a workpiece, the wire electric discharge machine comprising:
a working fluid tank for storing a working fluid or preventing the working fluid from scattering; a pump configured to force the working fluid into the working fluid tank; a working fluid passage extending between an outlet of the pump and an outlet of a nozzle for ejecting the working fluid; a fluid pressure transmission duct capable of transmitting a fluid pressure; a connection port which connects the working fluid passage and the fluid pressure transmission duct and which is provided at the upper head section, the lower head section, the upper head support portion, or the lower head support portion; and a pressure sensor attached, outside the working fluid tank, to one end of the fluid pressure transmission duct, the other end of which is connected to the connection port. |
