An electro-hydraulic combined device is provided. The electrical insulator is fixedly connected with a spindle shell; a top end of the electro-hydraulic joint supply base is fixedly connected with the electrical insulator; a connection port of the working fluid pipe and a binding post are arranged on the electro-hydraulic joint supply base; a bottom end of the electro-hydraulic joint supply base is provided with a terminal connection port; the connection port of the working fluid supplying pipe and the terminal connection port communicate with a fluid channel in the electro-hydraulic joint supply base; when the terminal connection port is snap-engaged with a top end of the terminal of electro-hydraulic joint supply pipes, the fluid channel in the electro-hydraulic joint supply base is communicated with a fluid channel in the terminal; the fluid channel in the terminal is further communicated with a flushing fluid container on an electrode shank for electro machining.

An electro-hydraulic combined device is provided. The electrical insulator is fixedly connected with a spindle shell; a top end of the electro-hydraulic joint supply base is fixedly connected with the electrical insulator; a connection port of the working fluid pipe and a binding post are arranged on the electro-hydraulic joint supply base; a bottom end of the electro-hydraulic joint supply base is provided with a terminal connection port; the connection port of the working fluid supplying pipe and the terminal connection port communicate with a fluid channel in the electro-hydraulic joint supply base; when the terminal connection port is snap-engaged with a top end of the terminal of electro-hydraulic joint supply pipes, the fluid channel in the electro-hydraulic joint supply base is communicated with a fluid channel in the terminal; the fluid channel in the terminal is further communicated with a flushing fluid container on an electrode shank for electro machining.

An electrode applied in electro-machining processes, where the electrode includes a main body portion and at least one built-in internal flushing passage for introducing a flushing liquid to a volume between the electrode and a workpiece to be machined. The electrode is made by an additive fabrication process that enables specialized flushing for enhancing waste material evacuation and incorporate special material properties like zones of high electrical conductivity and thermal resistance. The fabrication process produces materials and geometries that could not otherwise be made using conventional processing.

An electrode applied in electro-machining processes, where the electrode includes a main body portion and at least one built-in internal flushing passage for introducing a flushing liquid to a volume between the electrode and a workpiece to be machined. The electrode is made by an additive fabrication process that enables specialized flushing for enhancing waste material evacuation and incorporate special material properties like zones of high electrical conductivity and thermal resistance. The fabrication process produces materials and geometries that could not otherwise be made using conventional processing.

Electrode for an electro-erosion process, includes a shaft, a body coupled to the shaft, a plurality of machining-inserts, an insulated layer, and a flushing cover disposed on the body and coupled to the shaft. The shaft includes a channel, a plurality of first and second openings, each opening connected to the channel. The body includes a plurality of main-flushing channels, each channel connected to a corresponding first opening. The plurality of machining-inserts is spaced apart from each other along a circumferential direction and detachably coupled to a peripheral end portion of the body. Each machining-insert includes at least one third opening connected to a corresponding main-flushing channel. The insulated layer is disposed on top and bottom surfaces of the body. The flushing cover includes a plurality of side-flushing channels and a plurality of fourth openings, each channel connected to a corresponding second opening.

Electrode for an electro-erosion process, includes a shaft, a body coupled to the shaft, a plurality of machining-inserts, an insulated layer, and a flushing cover disposed on the body and coupled to the shaft. The shaft includes a channel, a plurality of first and second openings, each opening connected to the channel. The body includes a plurality of main-flushing channels, each channel connected to a corresponding first opening. The plurality of machining-inserts is spaced apart from each other along a circumferential direction and detachably coupled to a peripheral end portion of the body. Each machining-insert includes at least one third opening connected to a corresponding main-flushing channel. The insulated layer is disposed on top and bottom surfaces of the body. The flushing cover includes a plurality of side-flushing channels and a plurality of fourth openings, each channel connected to a corresponding second opening.

The disclosure provides a wire electric discharge machine which has a simple configuration and can make a wire electrode fed to a machining position rotate around an axis. The wire electric discharge machine for machining a workpiece includes an upper wire guide and a lower wire guide, which stretch a wire electrode therebetween, and a rotator. A position of the rotator is changed, whereby the wire electrode is rotated around an axis.

The disclosure provides a wire electric discharge machine which has a simple configuration and can make a wire electrode fed to a machining position rotate around an axis. The wire electric discharge machine for machining a workpiece includes an upper wire guide and a lower wire guide, which stretch a wire electrode therebetween, and a rotator. A position of the rotator is changed, whereby the wire electrode is rotated around an axis.

An electrical discharge machine includes a critical angle detection device that detects a critical angle of a machining fluid in which a corrosion inhibitor is added. The critical angle detection device includes a prism, a light source, an image sensor, an electrical circuit, and a slit. The prism has an incident surface, a boundary surface, a reflection surface, and an emission surface. The light source irradiates an incident light from the incident surface to the boundary surface. The image sensor includes a plurality of photodetectors that detect a reflection light. The electrical circuit calculates the critical angle by arithmetically processing output signals output from the plurality of photodetectors. The slit is arranged on an optical axis of the reflection light between the prism and the image sensor to block a scattered light.

An electric discharge machine 1 incudes: a machining tank 11; a dirty fluid tank 13; a circulation pump 21; a filter unit 3 including a filter element 31 and a filter case 33; a fixing mechanism 5 fixing the filter unit; a clean fluid tank 15; and a fluid feeding pump 23. The fixing mechanism includes: a bracket 51 fixed in a predetermined position; a rotating member 53 rotatably connected to the bracket; a lever 6 having: a link 61 of which one end is connected to the rotating member, a nut 63 arranged on the other end of the link, and a rod 65 screwed with the nut; a locked member 55 fixed to the bracket and engaged with the rod; and a pressing member 7 of which one end is connected to the rotating member 53 and the other end presses the filter case.