Control device for wire electric discharge machine and control method for wire electric discharge machine

    公开(公告)号:US09855616B2

    公开(公告)日:2018-01-02

    申请号:US15124468

    申请日:2014-03-27

    CPC分类号: B23H1/02 B23H7/04 B23H7/18

    摘要: A control device includes an interpolar average machining voltage detection unit that detects an interpolar average machining voltage between an electrode and a workpiece, an interpolar average machining voltage correction unit that corrects the detected interpolar average machining voltage, a machining speed control unit that calculates a machining speed of the electrode based on the difference between the set voltage, which is set in advance as a target value of the interpolar average machining voltage, and the corrected interpolar average machining voltage, and a drive control device that controls a machining speed of the electrode based on the calculated machining speed. The interpolar average machining voltage correction unit corrects the detected interpolar average machining voltage based on a difference between the calculated machining speed and the set speed, which is set in advance as a target value of the machining speed.

    Wire electric discharge machine
    62.
    发明授权

    公开(公告)号:US09815132B2

    公开(公告)日:2017-11-14

    申请号:US14790034

    申请日:2015-07-02

    申请人: FANUC Corporation

    IPC分类号: B23H1/02 B23H7/04

    CPC分类号: B23H1/022 B23H1/02 B23H7/04

    摘要: In a wire electric discharge machine, a control unit is configured to deposit constituents of a wire electrode between a workpiece and a portion to be cut off from the workpiece to bond the workpiece and the portion to be cut off by outputting a signal for making an output voltage of a variable DC power supply lower than during normal machining and the on-time of a second switching element longer than during the normal machining, at least in a part of a machining path.

    WIRE ELECTRICAL DISCHARGE MACHINING DEVICE
    63.
    发明申请

    公开(公告)号:US20170297126A1

    公开(公告)日:2017-10-19

    申请号:US15488194

    申请日:2017-04-14

    申请人: FANUC CORPORATION

    IPC分类号: B23H1/02

    摘要: Whether or not an inter-electrode voltage exceeds a voltage threshold is determined after a predetermined inter-electrode state determination period has passed since application of an induction voltage (inter-electrode voltage) to an inter-electrode gap. Thus, an inter-electrode gap amount between a wire electrode and a work is estimated. A pause time during which electrical discharge is not performed is changed according to an estimation result of the inter-electrode gap amount.

    Electric discharge machining apparatus

    公开(公告)号:US09770773B2

    公开(公告)日:2017-09-26

    申请号:US14419479

    申请日:2013-08-07

    申请人: SODICK CO., LTD.

    IPC分类号: B23H1/02 B23H7/04 B23H7/14

    摘要: The present invention relates to an electric discharge machining device. The electric discharge machining device includes: a first switch provided between the positive pole of a power supply and a work piece; a second switch provided between the negative pole of the power supply and the work piece; a third switch provided between the negative pole of the power supply and a tool electrode; a fourth switch provided between the positive pole of the power supply and the tool electrode; and a pulse generating device. In order to supply current pulses with a straight polarity, the pulse generating device repeatedly switches on and off either the first or third switch while the other switch is on. In order to supply current pulses with a reverse polarity, the pulse generating device repeatedly switches on and off either the second or fourth switch while the other switch is on.

    WIRE ELECTRIC DISCHARGE MACHINE
    65.
    发明申请

    公开(公告)号:US20170173715A1

    公开(公告)日:2017-06-22

    申请号:US15381624

    申请日:2016-12-16

    申请人: FANUC Corporation

    发明人: Kaoru HIRAGA

    IPC分类号: B23H1/02 G05B19/4065

    摘要: A core image acquiring unit is mounted at a position where the core image acquiring unit looks down at a workpiece on a table, such as an upper guide unit of a wire electric discharge machine, the core machining is performed, while fixing the core using a core fixing function, at a stage in which machining is completed to the end point of the machining path of cutting the core, the core and the workpiece are picked up by the core image acquiring unit, from the captured image, it is determined whether a machining groove has a constant width, or adhesion and deposition of machining debris are present in the machining groove, or the core is fixed by a difference in states of the surface light between the core and the workpiece.

    CONTROL DEVICE FOR WIRE ELECTRIC DISCHARGE MACHINE AND CONTROL METHOD FOR WIRE ELECTRIC DISCHARGE MACHINE
    67.
    发明申请
    CONTROL DEVICE FOR WIRE ELECTRIC DISCHARGE MACHINE AND CONTROL METHOD FOR WIRE ELECTRIC DISCHARGE MACHINE 有权
    电力放电机控制装置及电力放电机控制方法

    公开(公告)号:US20170014926A1

    公开(公告)日:2017-01-19

    申请号:US15124468

    申请日:2014-03-27

    IPC分类号: B23H1/02 B23H7/18

    CPC分类号: B23H1/02 B23H7/04 B23H7/18

    摘要: A control device for a wire discharge machine including an interpolar average machining voltage detection unit 5 that detects an interpolar average machining voltage between an electrode 3 and a workpiece 4 to be machined, an interpolar average machining voltage correction unit 12 that corrects the interpolar average machining voltage detected by the interpolar average machining voltage detection unit, a set voltage storage unit 6 that stores, in advance, a set voltage serving as a target value of the interpolar average machining voltage, a voltage calculation unit 7 that calculates a difference between the set voltage and an output of the interpolar average machining voltage correction unit 12, a machining speed control unit 8 that calculates a machining speed of the electrode based on the difference calculated by the voltage calculation unit 7, a drive control device 9 that controls a machining speed of the electrode in accordance with the calculated machining speed, a set speed storage unit 10 that sets, in advance, a set speed serving as a target value of the machining speed, and a voltage correction value calculation unit 12 that calculates an interpolar average machining voltage correction value based on a difference between the machining speed and the set speed, wherein the interpolar average machining voltage correction unit 12 corrects the interpolar average machining voltage in accordance with the interpolar average machining voltage correction value.

    摘要翻译: 一种用于排线机的控制装置,包括检测电极3和待加工的工件4之间的极间平均加工电压的极间平均加工电压检测单元5,校正多次平均加工的极间平均加工电压校正单元12 由极间平均加工电压检测单元检测的电压;预先存储用作极间平均加工电压的目标值的设定电压的设定电压存储单元6,计算设定电压之间的差的电压计算单元7, 电压和极间平均加工电压校正单元12的输出;加速度控制单元8,其基于由电压计算单元7计算的差来计算电极的加工速度;驱动控制装置9,其控制加工速度 根据计算的加工速度,设定速度存储 年龄单元10,其预先设定用作加工速度的目标值的设定速度;以及电压校正值计算单元12,其基于加工速度和设定值之间的差计算极间平均加工电压校正值 速度,其中,所述极间平均加工电压校正单元12根据所述极间平均加工电压校正值校正所述极间平均加工电压。

    Wire electric-discharge machining apparatus, wire electric-discharge machining method, and control device
    69.
    发明授权
    Wire electric-discharge machining apparatus, wire electric-discharge machining method, and control device 有权
    线放电加工装置,线放电加工方法及控制装置

    公开(公告)号:US09409245B2

    公开(公告)日:2016-08-09

    申请号:US14391195

    申请日:2013-12-10

    IPC分类号: B23H1/02 B23H7/06 G05B19/18

    摘要: A control device of the wire electric-discharge machining apparatus includes a speed-ratio computing unit that calculates machining speed information related to a corner machining speed in a corner machining portion corresponding to an amount of machining in the corner machining portion, on the basis of NC data, a feedback machining-speed computing unit that calculates, as a feedback machining speed to be used for feedback control of wire electric-discharge machining, a machining speed corresponding to an inter-electrode state between a wire electrode and a workpiece measured during wire electric-discharge machining, and a multiplier that calculates a machining speed to be used for control of a machining device at a time of machining the corner machining portion, on the basis of the machining speed information and the feedback machining speed.

    摘要翻译: 线材放电加工设备的控制装置包括:速比计算单元,其基于与角加工部分中的加工量相对应的角加工部分中的角加工速度信息,基于 NC数据,反馈加工速度计算单元,其计算用于线材放电加工的反馈控制的反馈加工速度,对应于线电极和工件之间的电极间状态的加工速度, 以及乘法器,其根据加工速度信息和反馈加工速度计算加工角加工部时加工装置的加工速度。

    WIRE ELECTRIC DISCHARGE MACHINE WITH TENSION MONITORING FUNCTION
    70.
    发明申请
    WIRE ELECTRIC DISCHARGE MACHINE WITH TENSION MONITORING FUNCTION 审中-公开
    具有张力监测功能的电力放电机

    公开(公告)号:US20160184911A1

    公开(公告)日:2016-06-30

    申请号:US14979500

    申请日:2015-12-27

    申请人: FANUC Corporation

    IPC分类号: B23H1/02 B23H1/10

    摘要: A wire electric discharge machine with tension monitoring function comprising a tension generation unit configured to generate tension in the wire electrode, a first tension measurement unit set on the wire electrode and configured to measure tension, and a tension control unit configured to feedback tension value measured by the first tension measurement unit and output tension command value to the tension generation unit such that the tension value is equal to a target value, wherein a warning signal is configured to be generated when the tension command value output by the tension control unit is not within a set range corresponding to the target value of the tension.

    摘要翻译: 一种具有张力监测功能的线材放电机,包括:张力生成单元,其被配置为在线电极产生张力;第一张力测量单元,设置在线电极上并构造成测量张力;张力控制单元,被配置为反馈测量的张力值 通过所述第一张力测量单元和所述张力生成单元的输出张力指令值,使得所述张力值等于目标值,其中,当由所述张力控制单元输出的张力指令值不是时产生警告信号 在对应于张力的目标值的设定范围内。