Abstract: A method and device for removing an electromagnetic core, the method including: using an electromagnet to magnetize or demagnetize a metallic upper nozzle when a magneto-conductive workpiece is cut off in a WEDM manner; attracting a core capable of being completely cut off and separated in the workpiece; utilizing the metallic upper nozzle to detect whether attracted; if the core is attracted, moving the core to a target area; demagnetizing and dropping the core in a trash area. The device is applied to a WEDM machine; after the metallic magneto-conductive upper nozzle is magnetized by the electromagnet, the upper nozzle is used to attract the magneto-conductive core; a metallic water spray cover is utilized to detect whether the core is attracted; the core is moved to the target area by a motion system of the WEDM machine, and dropped in a trash device after the upper nozzle is demagnetized.

Abstract: A method and device for removing an electromagnetic core, the method including: using an electromagnet to magnetize or demagnetize a metallic upper nozzle when a magneto-conductive workpiece is cut off in a WEDM manner; attracting a core capable of being completely cut off and separated in the workpiece; utilizing the metallic upper nozzle to detect whether attracted; if the core is attracted, moving the core to a target area; demagnetizing and dropping the core in a trash area. The device is applied to a WEDM machine; after the metallic magneto-conductive upper nozzle is magnetized by the electromagnet, the upper nozzle is used to attract the magneto-conductive core; a metallic water spray cover is utilized to detect whether the core is attracted; the core is moved to the target area by a motion system of the WEDM machine, and dropped in a trash device after the upper nozzle is demagnetized.

Abstract: A planting pot includes a straight cylinder part and a diameter-enlarged part. The diameter-enlarged part has a first end and a second end. The first end is connected to the straight cylinder part. The second end is opposite to the first end. An outer diameter of the diameter-enlarged part is gradually increased in a direction from the first end to the second end. A planting holding plate includes a plate body and a plurality of planting pots. The planting pots are connected to the plate body, and the planting pots are arranged at intervals.

Abstract: A cooling system for working fluid of machine tool is assembled with a temperature sensing and controlling device for controlling the operation modes of a cooling host thereof. The cooling host is a commercial available cooling host. The cooling host delivers refrigerants to a heat exchanger via a refrigerant circulation pipeline so at to cool down the working fluid, and the cooling host can be freely replaced by any commercial available cooling host based on the damage condition thereof. Based on this, the cooling system according to the present invention is capable of being assembled to various machine tools and capable of using various commercial available cooling hosts for the operation of the system.

Abstract: An apparatus of asynchronous electric discharge machine for wire cut adopted for use in machine industries employs a first electric discharge machine unit and a second electric discharge machine unit to provide electric energy to a cutting wire to generate alternate ignition and discharge on a work piece. The asynchronous operation uses two different discharge circuits in two different time sequences to reduce the probability of occurring discharge at the same spot and effectively reduce pause time, and prevent the cutting wire from rupturing, thereby to reduce production cost and improve operation efficiency.

Abstract: A vertical calibration method for a wire cut electric discharge machine includes selecting a known altitude for a reference point, marking down four different positions of the upper wire guide of the wire cut electric discharge machine at three different altitudes and reptitively moving the wire of the wire cut electric discharge machine being in contact with the reference point, measuring four different displacements of the upper wire guide when being in contact with the reference point, establishing an equation by using a principle of trianglation, and completing calculation of positions of the upper wire guide and the lower wire guide to finish calibration.

Abstract: A vertical calibration method for a wire cut electric discharge machine includes selecting a known altitude for a reference point, marking down four different positions of the upper wire guide of the wire cut electric discharge machine at three different altitudes and repetitively moving the wire of the wire cut electric discharge machine being contact with the reference point, measuring four different displacements of the upper wire guide when being contact with the reference point, establishing an equation by using a principle of triangle, and completing calculation of positions of the upper wire guide and the lower wire guide to finish calibration.

Abstract: An apparatus of asynchronous electric discharge machine for wire cut adopted for use in machine industries employs a first electric discharge machine unit and a second electric discharge machine unit to provide electric energy to a cutting wire to generate alternate ignition and discharge on a work piece. The asynchronous operation uses two different discharge circuits in two different time sequences to reduce the probability of occurring discharge at the same spot and effectively reduce pause time, and prevent the cutting wire from rupturing, thereby to reduce production cost and improve operation efficiency.

Abstract: A method and an apparatus for vertically calibrating a wire of a wire cutting electric discharge machine are provided. The vertical calibration apparatus includes a body, an upper calibration board and a lower calibration board attached to the body and parallel to a machine table, with a circular hole formed through the upper calibration board and on the lower calibration board respectively. The two circular holes are coaxial and have different diameters. The method of wire vertical calibration includes searching for the circle centers of the two circular holes by contacting the circles several times with the wire in a prescribed manner, then passing the wire through the circle centers. The method and apparatus allow wire vertical calibration to be more easily and accurately performed.

Abstract: A method and an apparatus for vertically calibrating a wire of a wire cutting electric discharge machine are provided. The vertical calibration apparatus includes a body, an upper calibration board and a lower calibration board attached to the body and parallel to the machine table, with a ring hole formed on the upper calibration board and on the lower calibration board respectively. The two ring holes have the same vertical axis. The method of wire cutting electric discharge machine vertical calibration comprises searching for the circle centers of the two ring holes by constantly touching the ring edge several times by the wire, then passing the wire through the circle centers.

Abstract: A wire cutting discharging machining device and the method thereof are disclosed. The method includes the steps of feeding a wire to be machined to a plurality of guide blocks; detecting one end of the wire and positioning the end; driving the plurality of guide blocks and a parallel device which is connected to the plurality of guide blocks and is operated synchronously so as to vertically guide the wire to an upper guide; and feeding the wire continuously to a workpiece, and a lower guide to a drawing roller. When in the process of machining, if a wire is broken abruptly or a machining path is to be updated, then a wire end detecting device, a wire cutting means, a wire end clamping device and a wire pressing device are used to achieve the object of wire modification.

Abstract: A method for solving the problem that the machining accuracy in a corner part or in a circular arc is reduced by the line flexure during the wire-cut electric discharge machining. In the method, the controller of the wire-cut electric discharge machine with a built-in function of measuring error of wire flexure, after the machining, a detection voltage of the machine detects the machined groove. If the wire electrode comes into contact with the workpiece, the short-circuit caused by the wire flexure in the corner part or in a circular arc is detected, and then the compensation value of the wire flexure is gradually changed to continue the groove detection until the wire electrode and the workpiece are not short-circuited and the groove detection stops. Then the wire flexure value in the corner part or in the circular arc is obtained to establish the machining parameter data of the machine to automatically compensate the wire flexure value in the following machining.

Abstract: A wire electric-discharge machining apparatus with recycled electric power is provided, which can recycle the energy stored in the inductor of the discharge circuit to be used as the power source to both the ignition circuit and the discharging circuit, so that the use of electric power is more cost-effective. The wire electric-discharge machining apparatus is of the type having a positive-voltage ignition circuit, a negative-voltage ignition circuit, a discharging circuit, and a snubber circuit. The improvement to the wire electric-discharge machining apparatus comprises: a first voltage converting circuit coupled between the snubber circuit and the positive-voltage ignition circuit; a second voltage converting circuit coupled between the snubber circuit and the negative-voltage ignition circuit; and a third voltage converting circuit coupled between the snubber circuit and the discharging circuit.

Abstract: It is a main object of the present invention to improve the drawback of a conventional wire cut EDM which controls the pulse width of discharging current to supply discharge energy under the state of constant current slope. The discharging current slope control method and device of the wire cut electrical discharge machine of the present invention comprises an electrical discharge detecting circuit, a timing controller circuit, a normal discharge driver circuit, an arc discharge driver circuit, normal discharge switch elements and arc discharge switch elements. The slopes of the output triangle waveform currents shall be variable due to the different results of detecting by the electrical discharge detecting circuit, depending on normal discharge or arc discharge condition, to render the current slope of the arc discharge smaller than the current slope of the normal discharge, so as to achieve the effect of keeping a high machining speed without easily breaking of the wire electrode.

Abstract: A method and apparatus for automatically compensating machining parameters on a wire cut electric discharge machine. The shape of the workpiece is monitored during machining. When a curved shape is being machined, machining parameters are compensated to minimize servo lag and wire flexture to raise the precision of the machined workpiece.

Abstract: Disclosed is a servo control method and apparatus for use on discharging machines to control the discharging conditions on working piece. In conventional art, feedrate control is based on the average of the discharging voltage between the discharging electrode and the working piece, which takes the off-time period into account; and in the condition of a long off-time period, the average voltage will be lowered as to affect the stability of the discharging process. The servo control method and apparatus according to the present invention disregards the off-time period and takes only the ignition voltage and discharging voltage into account such that the stability of the discharging machine will not be affected. Furthermore, during discharging, the servo control method and apparatus is capable of detecting whether there is a short-circuit condition and adjusting the average voltage accordingly so as to quickly remove the discharging electrode from the working piece.