Wire-discharge machining apparatus
    1.
    发明授权
    Wire-discharge machining apparatus 有权
    放线加工机

    公开(公告)号:US06396021B1

    公开(公告)日:2002-05-28

    申请号:US09613751

    申请日:2000-07-11

    IPC分类号: B23H100

    CPC分类号: B23H1/024 B23H7/04 B23H7/20

    摘要: A wire-discharge machining apparatus for machining a workpiece by generating discharges between a wire electrode and the workpiece. In machining, the apparatus can detect all portions where wire-breakage frequently occurs and strictly discriminate between a condition detected and a control result, achieving wire-breakage prevention. This wire-discharge machining apparatus has an evaluating device and a controller. The evaluating device measure cycles, frequencies, or ignition delay times of the discharges as a measured value, evaluates the dispersion of the measured values, and outputs an evaluation value. The controller controls machining conditions according to the evaluation value.

    摘要翻译: 一种放线加工装置,用于通过在线电极和工件之间产生放电来加工工件。 在加工中,该装置可以检测所有发生断线的部分,并严格区分检测到的条件和控制结果,从而实现断线预防。 该放线加工装置具有评价装置和控制器。 评估装置测量放电的周期,频率或点火延迟时间作为测量值,评估测量值的色散,并输出评估值。 控制器根据评估值控制加工条件。

    Wire electric discharge machine with stored discharge energy threshold function
    2.
    发明授权
    Wire electric discharge machine with stored discharge energy threshold function 有权
    线放电机具有放电能量阈值功能

    公开(公告)号:US06781080B1

    公开(公告)日:2004-08-24

    申请号:US10149578

    申请日:2002-06-13

    IPC分类号: B23H704

    CPC分类号: B23H7/04

    摘要: A wire electric discharge machine includes storage means for storing threshold value data found from a relation between the normal electric discharge pulse energy and the electric discharge machining energy setting value corresponding to various electric discharge machining conditions; and a controller for controlling the electric discharge machining energy setting value so that the threshold value data can approach an operation point at which wire breakage occurs.

    摘要翻译: 线放电机包括存储装置,用于存储根据与各种放电加工条件相对应的正常放电脉冲能量与放电加工能量设定值之间的关系发现的阈值数据; 以及控制器,用于控制放电加工能量设定值,使得阈值数据可以接近发生断线的操作点。

    NUMERICAL CONTROL DEVICE, WIRE ELECTRIC DISCHARGE MACHINING APPARATUS USING THE SAME, AND WIRE ELECTRIC DISCHARGE MACHINING METHOD USING THE SAME
    3.
    发明申请
    NUMERICAL CONTROL DEVICE, WIRE ELECTRIC DISCHARGE MACHINING APPARATUS USING THE SAME, AND WIRE ELECTRIC DISCHARGE MACHINING METHOD USING THE SAME 有权
    数控设备,使用其的电力放电加工设备和使用其的电力放电加工方法

    公开(公告)号:US20130024020A1

    公开(公告)日:2013-01-24

    申请号:US13574521

    申请日:2010-01-22

    IPC分类号: G05B19/18

    CPC分类号: B23H7/20 B23H7/102 B23H7/14

    摘要: In order to obtain wire-breakage thresholds and machining conditions for respective board thicknesses in a trial machining, a numerical control device for a wire electric discharge machining apparatus according to the present invention includes a wire-breakage-sign-signal generation means that generates a wire-breakage sign signal from machining state quantities, a wire-breakage sign detection means that outputs a machining-condition re-setting instruction and a wire-breakage threshold re-setting instruction from the wire-breakage sign signal and a wire-breakage threshold, a wire-breakage threshold setting means that sets the wire-breakage threshold according to the wire-breakage threshold re-setting instruction and a wire-breakage signal, a machining energy calculation means that calculates a machining energy from a discharge pulse count, a machining speed measurement means that measures a machining speed from position information, a board thickness calculation means that calculates a board thickness of the workpiece from the machining energy and the machining speed, a machining-condition switching means that outputs, according to a predetermined algorithm, a machining-condition switching instruction from the board thickness, the machining-condition re-setting instruction, and the wire-breakage signal, a control means that sends an oscillation instruction to a oscillator and sends a shaft feed instruction to a servo amplifier so that the machining condition is set to one determined by the machining-condition switching instruction, and a machining-condition storage means and a wire-breakage threshold storage means that store the machining condition and the wire-breakage threshold that correspond to each board thickness.

    摘要翻译: 为了在试验加工中获得各板厚度的断线阈值和加工条件,本发明的电线放电加工装置用数控装置包括:断线符号信号生成装置, 来自加工状态量的断线符号信号;断线符号检测装置,其从断线符号信号和断线阈值输出加工条件重新设定指令和断线阈值重新设定指令 断线阈值设定装置,根据断线阈值重新设定指示和断线信号来设定断线阈值,根据放电脉冲数计算加工能量的加工能量计算单元, 加工速度测量意味着从位置信息测量加工速度,计算a的板厚度计算装置 根据加工能量和加工速度的工件的板厚度;加工条件切换装置,根据预定的算法,从板厚度,加工条件重新设定指令和 断线信号,向振荡器发送振荡指令并向伺服放大器发送轴馈送指令的控制装置,使得加工条件被设定为由加工条件切换指令确定的加工条件,加工条件 存储装置和断线阈值存储装置,其存储对应于每个板厚度的加工条件和断线阈值。

    Numerical control device, wire electric discharge machining apparatus using the same, and wire electric discharge machining method using the same
    4.
    发明授权
    Numerical control device, wire electric discharge machining apparatus using the same, and wire electric discharge machining method using the same 有权
    数控装置,使用该放电加工装置的放线加工装置及其使用的放线加工方法

    公开(公告)号:US09272349B2

    公开(公告)日:2016-03-01

    申请号:US13574521

    申请日:2010-01-22

    CPC分类号: B23H7/20 B23H7/102 B23H7/14

    摘要: A numerical control device for a wire electric discharge machining apparatus generates a wire-breakage sign signal, outputs a machining-condition re-setting instruction and wire-breakage threshold re-setting instruction from the wire-breakage sign signal and wire-breakage threshold, sets the wire-breakage threshold according to the wire-breakage threshold re-setting instruction and a wire-breakage signal, calculates a machining energy from a discharge pulse count, measures a machining speed from position information, calculates a board thickness of the workpiece from the machining energy and machining speed, outputs, according to a predetermined algorithm, a machining-condition switching instruction from the board thickness, the machining-condition re-setting instruction, and the wire-breakage signal, sends an oscillation instruction to a oscillator and sends a shaft feed instruction to a servo amplifier so that the machining condition is set to one determined by the machining-condition switching instruction, and stores the machining condition and wire-breakage threshold that correspond to each board thickness.

    摘要翻译: 一种电线放电加工装置的数控装置生成断线信号,从断线符号信号和断线阈值输出加工条件重新设定指令和断线阈值重新设定指令, 根据断线阈值重新设置指令和断线信号设置断线阈值,从放电脉冲计数中计算加工能量,从位置信息测量加工速度,计算工件的板厚度 加工能量和加工速度,根据预定算法,从板厚度,加工条件重新设定指令和断线信号输出加工条件切换指令,向振荡器发送振荡指令, 向伺服放大器发送轴进给指令,使加工条件设定为由加工条件确定的加工条件 n切换指令,并存储对应于每个板厚度的加工条件和断线阈值。

    Power supply for wire electric discharge machining
    5.
    发明授权
    Power supply for wire electric discharge machining 失效
    电火花加工电源

    公开(公告)号:US06756557B1

    公开(公告)日:2004-06-29

    申请号:US10168178

    申请日:2002-06-19

    IPC分类号: B23H102

    CPC分类号: B23H7/04 B23H1/022 B23H7/34

    摘要: In a power source apparatus for wire electric discharge machining capable of applying voltages of both of positive and opposite polarities to a gap between a wire electrode (1a) and a workpiece (2), there is provided a controller (14) for applying a first voltage pulse to the gap for predetermined time T1 and then applying a second voltage pulse of a polarity opposite to the first voltage pulse for predetermined time T2a necessary for the gap voltage to become a predetermined voltage lower than or equal to a voltage Va capable of starting an electric discharge after a lapse of predetermined time t set for prevention of breakage of a switch. The apparatus is used in machining for performing at least two machining operations selected from machining in machining liquid, machining in mist and machining in gas. Wire electric discharge machining with high reliability suitable for high-accurate machining can be implemented.

    摘要翻译: 在能够向线电极(1a)和工件(2)之间的间隙施加正极性和极性两者的电压的电火花加工用电源装置中,设置有用于施加第一 电压脉冲到间隙预定时间T1,然后施加与第一电压脉冲极性相反的第二电压脉冲,以使间隙电压成为低于或等于能够启动的电压Va的预定电压 经过设定的预定时间t之后的放电,以防止开关断线。 该装置用于进行从加工液中的加工,雾化加工和气体加工中选择的至少两个加工操作的加工。 可以实现高可靠性的电火花加工,适用于高精度加工。

    Power supply system for applying a voltage of both positive and negative polarities in electric discharge machining
    6.
    发明授权
    Power supply system for applying a voltage of both positive and negative polarities in electric discharge machining 失效
    用于在放电加工中施加正负极性电压的电源系统

    公开(公告)号:US06727455B1

    公开(公告)日:2004-04-27

    申请号:US10048930

    申请日:2002-05-08

    IPC分类号: B23H102

    CPC分类号: B23H1/022

    摘要: In an electric discharge machining power supply system that can apply a voltage of both positive and negative polarities between an electrode and a workpiece, there is provided a controller that applies a first voltage pulse between the electrodes for a predetermined time T1, and then applies a second voltage pulse having a polarity opposite to the first voltage pulse for a predetermined time T2a required until the voltage between the electrodes is lowered to a predetermined voltage that is less than an electric discharge starting voltage Va, after a predetermined time t that is set to prevent breakdown of a switching circuit has lapsed. In electric discharge machining using this electric discharge machining power supply system, the stable machining having high machining quality can be accomplished by causing a remaining voltage between the electrodes to fall down quickly and remove.

    摘要翻译: 在能够在电极和工件之间施加正极性和负极性的电压的放电加工电源系统中,设置有在电极之间施加预定时间T1的第一电压脉冲的控制器,然后施加 第二电压脉冲具有与第一电压脉冲相反极性的预定时间T2a,直到电极之间的电压降低到小于放电起始电压Va的预定电压,在预定时间t被设置为 防止开关电路故障失效。 在使用该放电加工电源系统的放电加工中,通过使电极之间的剩余电压迅速下降并去除,可以实现具有高加工质量的稳定加工。

    Method of electrodischarge wire machining
    7.
    发明授权
    Method of electrodischarge wire machining 失效
    放电线加工方法

    公开(公告)号:US06686554B1

    公开(公告)日:2004-02-03

    申请号:US10069504

    申请日:2002-02-27

    IPC分类号: B23H702

    CPC分类号: B23H7/36 B23H7/02 B23H7/101

    摘要: A method of wire electric discharge machining by which an electric discharge is generated in a gap between a wire electrode (1a) and a workpiece (2) so that the workpiece (2) is machined, includes the steps of: a first step in which electric discharge machining is conducted in a dielectric liquid (4a); a second step in which electric discharge machining is conducted in mist (7); and a third step in which electric discharge machining is conducted in gas (8), such that the machining process is changed over when straightness of the workpiece (2) becomes a predetermined value. It is possible to provide a method of wire electric discharge machining, the productivity of which is high, suitable for highly accurate machining.

    摘要翻译: 一种在线电极(1a)和工件(2)之间的间隙中产生放电以便加工工件(2)的放电加工的放线加工方法包括以下步骤:第一步骤,其中 电介质液体(4a)中进行放电加工。 进行放电加工的第二步骤(7); 以及在气体(8)中进行放电加工的第三步骤,使得当所述工件(2)的直线度达到预定值时,所述加工过程被切换。 可以提供一种线材放电加工的方法,其生产率高,适合于高精度的加工。

    Wire electrical discharge machine
    8.
    发明授权
    Wire electrical discharge machine 失效
    线放电机

    公开(公告)号:US06294748B1

    公开(公告)日:2001-09-25

    申请号:US09462161

    申请日:2000-01-05

    IPC分类号: B23H100

    CPC分类号: B23H7/105 B23H7/101 B23H7/107

    摘要: A wire electrical discharge machine having an upper wire guide and a lower wire guide through which a wire electrode is passed and which have therein channels for the working fluid to flow therethrough, including: ajet nozzle which is engaged with and fixed to an outer peripheral surface of a distal end portion of the upper wire guide, and is adapted to guide the wire electrode to a hole in the lower wire guide through use of the fluid; a working fluid nozzle for covering the jet nozzle and having a through hole in a central portion thereof and a collar portion in a periphery thereof; a retaining plate for fixing an outer peripheral portion of the working fluid nozzle including the collar portion, and the retaining plate having a channel for supplying and discharging the fluid; and a sealed space portion which is disposed between the collar portion of the working fluid nozzle and the retaining plate and expands and contracts due to the fluid which flows in or out through the channel.

    摘要翻译: 一种线放电机,具有上线引导件和下引线引导件,线电极通过该导线引导件和下引线引导件,其中具有用于工作流体流过其中的通道,包括:喷嘴,其与外周表面接合并固定 上导线引导件的远端部分,并且适于通过使用流体将线电极引导到下导线器中的孔; 用于覆盖喷嘴并在其中心部分具有通孔的工作流体喷嘴和其周边中的凸缘部分; 用于固定包括所述套环部分的工作流体喷嘴的外围部分的保持板,并且所述保持板具有用于供应和排出流体的通道; 以及设置在工作流体喷嘴的轴环部分和保持板之间的密封空间部分,并且由于通过通道流入或流出的流体而膨胀和收缩。

    Wire electric discharge machining method and wire electric discharge machine utilizing pressurized gas for removing machining solution
    9.
    发明授权
    Wire electric discharge machining method and wire electric discharge machine utilizing pressurized gas for removing machining solution 失效
    线放电加工方法和利用加压气体去除加工溶液的线放电机

    公开(公告)号:US06713705B1

    公开(公告)日:2004-03-30

    申请号:US10148545

    申请日:2002-06-04

    IPC分类号: B23H702

    摘要: A workpiece is machined by consecutively performing at least two of machining in a machining solution, machining in a mist and machining in a gas, such that at a point of time before the start of machining, except for the machining conducted in the machining solution, and a point of time after the operation of an automatic wire connecting device for conducting an automatic wire connection while the wire electrode is being held by a water column, the machining solution nozzles, can change from supplying the machining solution to supplying the pressurized gas. By the machining solution nozzles, liquid of the machining solution adhering to the workpiece and liquid adhering to the machining solution nozzle which is capable of dripping onto a face to be machined of the workpiece, are removed.

    摘要翻译: 通过连续执行加工溶液中的加工中的至少两个,在雾中进行加工和气体加工中的至少两个加工,使得在加工开始之前的时间点,除了在加工溶液中进行的加工之外, 以及在线电极被水柱保持的情况下,用于进行自动线连接的自动线连接装置的操作后的时间点,加工液喷嘴可以从供给加压溶液到供给加压气体而变化。 通过加工溶液喷嘴,去除附着在工件上的加工液的液体和附着在能够滴加到被加工面上的加工液喷嘴的液体。

    Apparatus for electric discharge machining
    10.
    发明授权
    Apparatus for electric discharge machining 失效
    放电加工设备

    公开(公告)号:US06660957B1

    公开(公告)日:2003-12-09

    申请号:US09958649

    申请日:2001-10-11

    IPC分类号: B23H102

    CPC分类号: B23H1/022 B23H2300/20

    摘要: A power supply apparatus for electric discharge machining is provided with a current loop including a diode, which is supplied with a forward current at the same time a voltage for generating a discharge is output or before it; and a resistor. Supply of forward current to the diode is blocked the moment a discharge is generated. By doing so, a reverse recovery current of the diode is supplied in a gap between an electrode and a workpiece to be machined.

    摘要翻译: 用于放电加工的电源装置设置有包括二极管的电流回路,该二极管同时被供给正向电流,用于产生放电的电压被输出或在其之前; 和电阻。 向二极管提供正向电流在产生放电的时刻被阻止。 通过这样做,二极管的反向恢复电流被提供在电极和待加工的工件之间的间隙中。