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    DEVICE FOR CONTROLLING WIRE ELECTRICAL DISCHARGE MACHINING APPARATUS
    2.
    发明公开
    DEVICE FOR CONTROLLING WIRE ELECTRICAL DISCHARGE MACHINING APPARATUS 审中-公开

    公开(公告)号：EP4101571A1

    公开(公告)日：2022-12-14

    申请号：EP21750634.4

    申请日：2021-02-02

    申请人： FANUC CORPORATION

    发明人： FUNAKUBO, Ryuuki

    IPC分类号： B23H7/06

    摘要： Provided is a device for controlling a wire electrical discharge machining apparatus, the device making it possible to improve machining precision even in machining in which a plurality of corner control segments overlap. A device for controlling a wire electrical discharge machining apparatus, the device comprising: a storage unit that stores a machining program and a prescribed plurality of corner control patterns that can be applied to each corner part; a control unit that performs corner control for switching between prescribed machining conditions on the basis of a corner shape during machining of a corner part; a calculation unit that calculates a corner control segment from the start point and the end point of the corner control; and a selection unit that, when the corner control segments calculated by the calculation unit overlap, selects one corner control pattern to perform in a prioritized manner from the storage unit.

    WIRE ELECTRIC DISCHARGE MACHINING METHOD
    3.
    发明公开
    WIRE ELECTRIC DISCHARGE MACHINING METHOD 审中-公开

    公开(公告)号：EP3954486A1

    公开(公告)日：2022-02-16

    申请号：EP21191804.0

    申请日：2013-05-22

    申请人： FANUC CORPORATION

    发明人： YAMAOKA, Masahide ,  ARAKAWA, Yasuo

    IPC分类号： B23H7/06 ,  B23H7/20 ,  G05B19/4093 ,  B23H11/00

    摘要： In a machining method, a wire electric discharge machine relatively moves a wire electrode containing brass and workpiece in accordance with a machining program to machine the workpiece by electric discharge produced between the wire electrode and the workpiece, the method comprising:
    an attachment/deposition region setting step that sets an attachment/deposition region in which machining chips containing brass produced during machining are attached and deposited to the workpiece, for each predetermined distance,
    an attachment/deposition step that attaches and deposits machining chips containing brass produced during machining to the workpiece according to the attachment/deposition region set in the attachment/deposition region setting step.

    WIRE ELECTRICAL DISCHARGE MACHINE AND CONTROL METHOD
    5.
    发明公开
    WIRE ELECTRICAL DISCHARGE MACHINE AND CONTROL METHOD 审中-公开

    公开(公告)号：EP3812073A2

    公开(公告)日：2021-04-28

    申请号：EP20195209.0

    申请日：2020-09-09

    申请人： FANUC CORPORATION

    发明人： Furuta, Tomoyuki ,  Nakashima, Yasuo

    IPC分类号： B23H1/02 ,  B23H7/06

    摘要： A wire electrical discharge machine (10) includes: a voltage application unit (14) for repeatedly applying a voltage to an electrode gap between the workpiece (W) and the wire electrode (12) at a predetermined cycle; a switching element (S5) connected in parallel with the electrode gap and configured to short-circuit the electrode gap; and a control section (32) for controlling the switching element (S5) so as to short-circuit the electrode gap in a pause period (P2) during which the voltage is not applied. The control section (32) adjusts a short-circuiting period (P3) in which the electrode gap is shortcircuited according to the machining shape specified by a machining program.

    WIRE ELECTRICAL DISCHARGE MACHINE AND CONTROL METHOD
    6.
    发明公开
    WIRE ELECTRICAL DISCHARGE MACHINE AND CONTROL METHOD 审中-公开

    公开(公告)号：EP3785836A1

    公开(公告)日：2021-03-03

    申请号：EP20187876.6

    申请日：2020-07-27

    申请人： FANUC CORPORATION

    发明人： YAMAOKA, Masahide ,  HIRAGA, Kaoru

    IPC分类号： B23H7/06 ,  B23H7/10

    摘要： A wire electrical discharge machine (10) controls a second motor unit (56) including motors for feeding a wire electrode (12) in a wire running direction in which the wire electrode (12) extends, so as to feed the wire electrode (12) at a set feed rate during a machining period from a first time point (T1) at which the wire electrode (12) moving relative to a workpiece (W) in a direction intersecting the wire running direction is estimated to enter the workpiece (W), to a second time point (T2) at which the wire electrode (12) is estimated to exit the workpiece (W). The second motor unit (56) is controlled so as to feed the wire electrode (12) at a feed rate lower than the set feed rate during at least one of a first non-machining period (r1) from a processing start time point (T0) to the first time point (T1) and a second non-machining period (r2) from the second time point (T2) to a processing end time point (T3).

    CONTROL DEVICE FOR WIRE ELECTRIC DISCHARGE MACHINE
    9.
    发明公开
    CONTROL DEVICE FOR WIRE ELECTRIC DISCHARGE MACHINE 审中-公开

    公开(公告)号：EP3587016A1

    公开(公告)日：2020-01-01

    申请号：EP19180823.7

    申请日：2019-06-18

    申请人： FANUC CORPORATION

    发明人： Shirai, Kenichiro

    IPC分类号： B23H7/06 ,  B23H7/20 ,  G05B19/404

    摘要： To provide a control device for a wire electric discharge machine which suppresses a decline in the machining precision of a corner part. A control device (20) for a wire electric discharge machine includes: a shape analysis portion (21) which looks ahead a machining program, and analyzes a machined shape of a workpiece; an identical circular arc shape machining path creation portion (23) which creates a plurality of machining paths of identical circular arc shape offsetting by an offset value from a machined shape analyzed, wherein the offset value differs for the plurality of machining paths, and shape of a corner part are identical circular arc shape; a concentric circle shape machining path creation portion (24) which creates a plurality of machining paths of concentric circle shape offsetting by an offset value from a machined shape analyzed, wherein the offset value differs for the plurality of machining paths, and shape of a corner part are concentric circle shape; and a machining path selection portion (25) which selects either of the plurality of machining paths of identical circular arc shape and the plurality of machining paths of concentric circle shape, as the machining paths for the plurality of machining processes, based on at least one among the machining program, machined shape analyzed, the plurality of machining paths of identical circular arc shape, and the plurality of machining paths of concentric circle shape.