Abstract: This invention relates a green-energy power generator for electrical discharge machine, which comprise: an alternating current (AC) power supply, an AC-to-DC power converter, a DC-to-DC power converter, a current limiting unit, a time limiting unit, and a control unit. It can reduce the unnecessary energy consumption and achieve the objective of energy saving.

Abstract: A method for detecting and compensating electrode wear of electric discharge machining (EDM) is disclosed, which comprises the steps of: defining a calibration node; calculating a wear length of a tool electrode by an edge-finding algorithm; using the calculated wear length of the tool electrode as a cut compensation for compensating a machining depth of next new tool electrode replacing the previously machined tool electrode; whereas the machining depth is obtained according to the following formula: the machining depth=designed depth of cut+predicted wear of the tool electrode for machining to desire depth?calculated wear length of the previously machined tool electrode+a through hole offset. With the aforesaid method, the wear of an used tool electrode can be detected automatically for compensating the machining depth of an unused tool electrode without ant additional equipment while achieving accurate machining.

Abstract: A method for detecting and compensating electrode wear of electric discharge machining (EDM) is disclosed, which comprises the steps of: defining a calibration node; calculating a wear length of a tool electrode by an edge-finding algorithm; using the calculated wear length of the tool electrode as a cut compensation for compensating a machining depth of next new tool electrode replacing the previously machined tool electrode; whereas the machining depth is obtained according to the following formula: the machining depth=designed depth of cut+predicted wear of the tool electrode for machining to desire depth?calculated wear length of the previously machined tool electrode+a through hole offset. With the aforesaid method, the wear of an used tool electrode can be detected automatically for compensating the machining depth of an unused tool electrode without ant additional equipment while achieving accurate machining.

Abstract: An electrochemical discharge machining device includes a base, a sensor disposed on the base, a shaft rotatably disposed on the base, an electrode disposed at one end of the shaft and contacting with a work piece, an isolating element disposed between the sensor and the shaft, and a control module connected to the sensor. Current flows to the electrode via the shaft to machine the work piece, and the force exerted on the electrode by the work piece is transmitted via the shaft and the isolating element to the sensor converting the force into a signal sent to the control module for raising or lowering the base to maintain contact between the electrode and the work piece. The sensor serves as a detecting mechanism to ensure appropriate contact between the electrode and the work piece.

Abstract: The microelectrode machining device disclosed by the invention mainly comprises a platform, a wire supply mechanism, a wire guide, and two (electric conductor)elements, wherein the platform can be fixed at an EDM machine and the wire supply mechanism is arranged on the platform for providing the wire needed in the EDM process, and the wire guide disposed on the platform has an arch-slide arranged thereon and a groove arranged at a position corresponding to the middle of the arch-slide on the wire guide, in addition, the two (electric conductor)elements are arranged on the platform to supply the power needed in the EDM process, and the two (electric conductor)elements are disposed respectively at the side of wire guide, and the altitudes of the bottom of both the wheel-shaped (electric conductor)element are lower than that of the wire exit and wire entrance of the arch-slide of the wire guide, in respective.

Abstract: A force feedback manual pulse generator, comprising a driver and a motor, driving a saddle of a machine tool along an axis for advancing a cutting tool, a CNC controlling device, issuing commands for controlling the driver to drive the motor, a manual pulse generator, and, as the main characteristic, a braking system and a force feedback unit. The manual pulse generator has a handwheel, operated by a user, and an encoder, generating a signal according to a turning movement of the handwheel for controlling the driver to drive the motor. The braking system is mounted on the manual pulse generator, creating a braking force and thus increasing resistance to the turning movement of the handwheel. The force feedback unit senses load experienced by the motor when driving the saddle and controlling the braking system. This is done in a way that upon increasing load of the motor the braking force is increased, so that the user, when turning the handwheel, feels resistance to cutting.