Class / Patent application number | Description | Number of patent applications / Date published |
700162000 | Electrical discharge machining (EDM) | 23 |
20090216362 | Calibration of a machine tool - Calibration apparatus comprising a positional calibration means, and a machine tool assembly chuck configured to, in use, locate a machine tool assembly comprising a machine tool configured to be adjustably mounted on a machine tool mount. The positional calibration means and chuck are mounted on a common base relative to one another. The positional calibration means comprises a calibration headstock provided with a positional feature engagement means for cooperative engagement with a machine tool location feature provided on the machine tool. When the machine tool is adjusted on the machine tool mount relative to the positional calibration means, cooperative engagement of the positional feature engagement means and the machine tool location feature indicates the machine tool is aligned along a predetermined machine tool calibration axis. | 08-27-2009 |
20100324720 | MACHINING CONTROL SYSTEM - An electroerosion control system includes a general CNC controller being configured for controlling a general CNC machine process, a power supply for energizing a tool electrode and a workpiece to be machined, an electroerosion controller electrically connecting with the power supply for controlling an output of the power supply, and adaptively and electrically connecting with the general CNC controller for communication thereof, and a sensor sensing real-time status information of a working gap between the tool electrode and the workpiece and for sending said real-time status information to said electroerosion controller. Said electroerosion controller automatically controls the electroerosion machining process through the general CNC controller according to the real-time status information of the working gap. | 12-23-2010 |
20130138241 | WIRE ELECTRIC DISCHARGE MACHINING METHOD AND WIRE ELECTRIC DISCHARGE MACHINE FOR MACHINING TOOL THAT USES ULTRA-HARD MATERIAL AND IS MOUNTED TO ROTATING SHAFT - An ultra-hard material fixed to a cutting tool is formed into a cutting blade by electric discharge machining. The wire electric discharge machine has a rotating shaft to which the cutting tool is mounted, and has a touch sensor mounted to an upper wire guide. A measurement program is generated on the basis of a machining path instructed by the machining program. A machining program is regenerated from rotating shaft coordinate information and path coordinate position information obtained at measurement points, on the basis of the measurement program. As a result, a rake face position of the cutting tool can be accurately measured and a wire electrode can be positioned accurately with respect to that position during machining. | 05-30-2013 |
20130150999 | WIRE ELECTRICAL DISCHARGE MACHINE WITH ROTATING SHAFT - A wire electrical discharge machine is provided with a rotating shaft for rotating a workpiece. In wire electrical discharge machining according to a machining program, a current average rotation radius at a current workpiece machining point is calculated for each predetermined period, based on average rotation radii at respective end points of a block to be executed and a directly preceding block and an amount of movement of the rotating shaft. Based on the calculated current average rotation radius, control is performed such that the speed of movement of the wire electrode relative to the workpiece machining point agrees with a command speed acquired from a machining power supply. | 06-13-2013 |
20130325163 | ELECTRIC DISCHARGE MACHINE - An electric discharge machine includes at least one of a noncontact-position detection sensor that outputs a detection signal when a distance between a first contact body and a second contact body is equal to a preset residual distance in a noncontact phase and a drive unit that detects a load given on the main spindle, and a main-spindle-drive control unit stops moving of the main spindle in at least either a case where a moving amount of the main spindle since the noncontact-position detection sensor outputs the detection signal exceeds the residual distance or a case where it is determined that an overload is given from a detection result of the drive unit. | 12-05-2013 |
20140135974 | WIRE ELECTRIC DISCHARGE MACHINE HAVING PEAK CURRENT COMPENSATION FUNCTION - A wire electric discharge machine is configured to machine a workpiece by computing an electric current at the machining time before starting a main machining and compensating a power source voltage for machining. The wire electric discharge machine measures an average electric current and an electric discharge frequency at the machining time, in a measuring section in an approach before the main machining, and computes a peak current at the machining time. Further, an electric voltage of a machining power source is compensated by comparing the computed peak current at the machining, with a reference peak current. | 05-15-2014 |
20140135975 | WIRE ELECTRIC DISCHARGE MACHINE CONTROLLER, WIRE ELECTRIC DISCHARGE MACHINE, AND WIRE ELECTRIC DISCHARGE MACHINING METHOD - A wire electric discharge machining program is analyzed and a target shape for a workpiece is created. Multiple amounts of adjustment by which the amount of wire radius compensation for a wire electrode is adjusted are set. One or more desired ones are selected from the amounts of adjustment, and the amount of wire radius compensation is calculated by adding the selected amount(s) of adjustment to the amount of wire radius compensation. A machining route which is offset from the created target shape by the calculated amount of wire radius compensation is created. | 05-15-2014 |
20140156055 | AUTOMATED CONTROL SYSTEM FOR ACTING ON AN ASSEMBLY OF FUNCTIONAL BLOCKS IN ORDER TO CARRY OUT AT LEAST ONE TASK - An automated system for acting on a set of blocks in order to carry out at least one task including a central control device, at least one shared data line, and interface circuits for connecting the blocks to the shared line. In one embodiment of the invention, the control device includes a PC computer on which is installed an operating software for determining the phases of operation of the blocks. | 06-05-2014 |
20140200708 | ELECTRICAL DISCHARGE MILLING MACHINE - The invention relates to electrical discharge milling machines using tool electrodes subject to longitudinal wear. The inventive discharge milling machine is equipped with a numerical controller executing at least one control cycle for compensating the wear considering the following steps:
| 07-17-2014 |
20140207272 | WIRE ELECTRIC DISCHARGE MACHINE INCLUDING CONTROL MEANS FOR HOLDING WIRE ELECTRODE AT DESIRED ANGLE - A relationship between a weight of a reel supported by a column of a wire electric discharge machine when a wire electrode is wound around the reel, and an amount of slanting of the wire electrode when the wire electrode extended between an upper wire guide and a lower wire guide becomes slanted as a result of the column being deformed by the weight of the reel is stored. The weight of the reel is determined during electric discharge machining, and the amount of slanting of the extended wire electrode is determined from the weight of the reel. A compensation amount for the slanting of the wire electrode is determined from the amount of slanting, and the slanting of the wire electrode is compensated by the compensation amount. | 07-24-2014 |
20140236341 | WIRE ELECTRIC DISCHARGE MACHINE AND CALCULATION METHOD FOR WIRE SUPPORT POSITIONS OF WIRE ELECTRIC DISCHARGE MACHINE - One arbitrary point on an upper surface of a workpiece and two points at arbitrary heights on a tapered section of the workpiece are measured using a contact detector disposed on an upper wire guide of a wire electric discharge machine to calculate the shape accuracy and tapered angle. Based on the calculated data, the upper and lower wire guide support positions of the upper and lower wire guides are calculated. Using the calculated upper and lower wire guide support positions, electric discharge machining is performed on the workpiece. | 08-21-2014 |
20140330423 | WIRE ELECTRICAL DISCHARGE MACHINING APPARATUS - A wire electrical discharge machining apparatus includes a target-control-section calculating unit calculating a target control section, which is indicated by a start point and an end point of the corner control in a current electrical discharge machining during the finish machining, based on a machining parameter; an actual-control-section calculating unit correcting the start point and the end point of the corner control, which are indicated in the target control section calculated by the target-control-section calculating unit, and calculating an actual control section, based on a magnitude of a shape error of the corner portion in a previous electrical discharge machining during the finish machining; and a speed controlling unit controlling the feed speed of the wire such that an amount of machining per unit time in the actual control section becomes equal to that when a portion other than the corner portion is machined. | 11-06-2014 |
20140364992 | MACHINING-PROGRAM GENERATING APPARATUS, MACHINING-PROGRAM GENERATING METHOD, AND RECORDING MEDIUM - A CAM apparatus includes: an input receiving unit that receives designation of a part where core fixing machining is performed in a machining shape forming a core and divides the machining shape into a first machining shape element for which the core fixing machining is performed and a second machining shape element, which is connected to the first machining element and for which the core fixing machining is not performed, a machining-condition setting unit that allocates a first electric condition for the core fixing machining to the first machining shape element and allocates a second electric condition to the second machining shape element, and a machining-program generating unit that generates a machining program for machining the second machining shape element under the second electric condition and continuously machining the first machining shape element under the first electric condition after the machining of the second machining shape element. | 12-11-2014 |
20150051727 | CUTTING TOOL MACHINING METHOD AND A WIRE ELECTRIC DISCHARGE MACHINE - In a wire electric discharge machine that machines a blade section of a cutting tool, in a state in which a rod-shaped reference jig is fixed to a rotary axis, a position on an outer circumferential surface of the reference jig is measured at each rotation position and stored. A rotational run-out error is calculated based on the stored rotational run-out position information, and a machining program is corrected to cancel the rotational run-out error. | 02-19-2015 |
20150066192 | PROGRAM CREATING DEVICE FOR WIRE ELECTRIC DISCHARGE MACHINE - When graphic information is selected, program creating unit receives machining shape data from graphic information analysis unit and pivot axis information from rotation center storage unit. Based on the received data, the program creating unit generates a new amount of movement of a wire electrode relative to a workpiece and the amounts of rotation of pivots, used to machine the workpiece with the wire electrode held vertical. | 03-05-2015 |
20150094845 | CONTROL APPARATUS AND MACHINING METHOD FOR WIRE ELECTRIC DISCHARGE MACHINE - A control apparatus of the present invention includes a weight calculating unit that calculates weight of a core on the basis of an NC program and a first input from a user designating a material and a thickness of work, a fixing-necessary-distance calculating unit that calculates a fixing distance on the basis of the weight of the core, a fixing-position calculating unit that sets fixing positions such that a total length of the fixing positions is equal to the fixing length, a fixation-condition setting unit that calculates a machining condition setting value for fixation on the basis of the first input, and a machine driving unit that drives the wire electric discharge machine on the basis of the NC program and causes the wire electric discharge machine to machine places set in the fixing positions by applying machining conditions for fixation. | 04-02-2015 |
20150112473 | MACHINE TOOL AND NUMERICAL CONTROL APPARATUS FOR CONTROLLING THE SAME - In wire-electrical discharge machine and a numerical control apparatus thereof and a numerical control apparatus for controlling a machine tool, optional minute blocks are automatically created in front of and behind a connecting point, i.e., a joint of a block to which an offset command is instructed, and an offset value is exchanged between the minute blocks so that a correct offset value is set in a desired block. | 04-23-2015 |
20150127136 | WIRE-CUT ELECTRICAL DISCHARGE MACHINING MACHINE AND METHOD OF MACHINING THEREIN - A wire-cut electric discharge machining machine which machines an object to be machined based on a command of a machining program includes a machining condition storage unit for storing machining conditions, a machining program analyzing unit for analyzing a machining condition search command specified in the machining program and acquiring search conditions designated by the machining condition search command, a search unit for retrieving machining conditions from the machining condition storage unit based on the acquired search conditions, and a machining unit for machining based on the machining conditions chosen by the search unit. | 05-07-2015 |
20150367436 | MACHINING PROGRAM CREATING DEVICE FOR KEYWAY MILLING FOR WIRE ELECTRIC DISCHARGE MACHINE - A machining program creating device for a wire electric discharge machine creates a machining program for machining a keyway on the side surface of a round hole in a workpiece, based on a previously specified diameter of the round hole, a center position of the round hole measured by bringing a wire electrode into contact with the workpiece, and a previously defined shape of the keyway. | 12-24-2015 |
20160091884 | WIRE CUT DISCHARGE MACHINE WITH MACHINING INFORMATION MANAGEMENT FUNCTION - A control unit of a wire cut discharge machine with machining information management function determines an item set to be a facility setting item and inhibits change of the setting value of the item set to be the facility setting item, when a machining information stored in a machining information storing unit is called to and all setting values of the called machining information are set altogether. | 03-31-2016 |
20160107251 | KEYWAY MACHINING PATH CREATING DEVICE FOR WIRE ELECTRIC DISCHARGE MACHINE - A machining path creating device for wire electric discharge machines creates a machining path for machining a keyway in a side surface of a round hole. The machining path creating unit compares a “keyway depth” and a diameter of the round hole input by an operator. The machining path creating device determines that the input “keyway depth” is a cut depth when the input “keyway depth” is smaller than the diameter of the round hole and that a value obtained by subtracting the diameter of the round hole from the input “keyway depth” is the cut depth when the input “keyway depth” is larger than the diameter of the round hole. | 04-21-2016 |
20160175956 | CONTROLLER FOR WIRE ELECTRIC DISCHARGE MACHINE HAVING CONSUMABLE EXCHANGE FUNCTION | 06-23-2016 |
20180021869 | WIRE ELECTRICAL DISCHARGE MACHINE | 01-25-2018 |