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公开(公告)号：US09486869B2
公开(公告)日：2016-11-08
申请号：US14139264
申请日：2013-12-23
申请人： FANUC CORPORATION
发明人： Masao Murai , Tomoyuki Furuta
摘要： In a power supply device for electric discharge machining, the polarity of the voltage to be applied is determined on the basis of a result of determination whether the machining gap is in open state or not, an average value of voltages applied across the machining gap voltage during machining, and the number of successive open states with the same polarity. This eliminates the need to significantly vary the voltages to be applied from positive to negative and from negative to positive, thereby reducing the output energy required by the machining power supply.
摘要翻译： 在放电加工用电源装置中，根据判断加工间隙是否处于开放状态的结果，确定施加电压的极性，加工间隙电压施加的电压的平均值 在加工期间，以及具有相同极性的连续打开状态的数量。 这样就不需要显着地改变从正负极到负极之间施加的电压，从而降低加工电源所需的输出能量。
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公开(公告)号：US20160288230A1
公开(公告)日：2016-10-06
申请号：US15088186
申请日：2016-04-01
申请人： FANUC Corporation
摘要： In a wire electric discharge machine, a discharge delay time is used to classify the inter-electrode state into three categories; a short-circuit state, small-gap state, and large-gap state. Based on this classification, the magnitude of a machining current supplied from a main discharge circuit is determined. If the discharge delay time is zero (i.e., if no electric discharge is generated) after the lapse of a predetermined time since the start of the application of a machining voltage to an inter-electrode gap by an auxiliary discharge circuit, the inter-electrode gap is determined to be short-circuited by machining chips. Thereupon, a short-circuit machining current is supplied from the main discharge circuit to the inter-electrode gap to remove the machining chips. In this way, establishment of a complete short-circuit state is prevented so that the machining efficiency is improved to increase the machining speed.
摘要翻译： 在线放电机中，使用放电延迟时间将电极间状态分为三类; 短路状态，小间隙状态和大间隙状态。 基于该分类，确定从主放电电路供给的加工电流的大小。 如果从通过辅助放电电路施加加工电压到电极间间隔开始经过预定时间之后放电延迟时间为零（即，如果不产生放电），则电极间 间隙被确定为通过加工芯片短路。 因此，从主放电电路向电极间间隙提供短路加工电流，以去除加工芯片。 以这种方式，防止建立完整的短路状态，从而提高加工效率以增加加工速度。
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公开(公告)号：US09346113B1
公开(公告)日：2016-05-24
申请号：US14662821
申请日：2015-03-19
摘要： An electrical discharge machining (EDM) system and method including (a) an electrode supported by a spindle, (b) a spindle support, (c) a workpiece holder, (d) a gap voltage measurement device, and (d) a single integrated controller. The single integrated controller is responsive to the measured gap voltage to control all of the spindle, the spindle support, and the workpiece holder, providing improved speed, accuracy, and part quality.
摘要翻译： 一种放电加工（EDM）系统和方法，包括（a）由主轴支撑的电极，（b）主轴支撑件，（c）工件保持器，（d）间隙电压测量装置，以及（d）单个 集成控制器 单个集成控制器响应于测量的间隙电压来控制所有主轴，主轴支撑和工件夹持器，提供改进的速度，精度和零件质量。
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4.发明申请公开(公告)号：US20150367437A1
公开(公告)日：2015-12-24
申请号：US14745503
申请日：2015-06-22
申请人： FANUC Corporation
发明人： Shouta IRIE , Kaoru HIRAGA
IPC分类号： B23H1/02
摘要： A wire electric discharge machine provided with a disconnection repairing unit includes a core-fixing-end-position storing unit for storing a core fixing end position of a depositing and accumulating operation machined most lately among positions at which the depositing and accumulating operation for machining wastes by a core fixing function ends in a machining shape currently being machined and a disconnection repairing unit for executing automatic connection between a disconnection position and the core fixing end position.
摘要翻译： 设置有断线修复单元的放线机包括：芯固定端位置存储单元，用于存储最近在机械加工废弃物的放置和累积操作的位置最近加工的沉积和堆积操作的芯固定端位置 通过芯部固定功能结束于当前正在加工的加工形状，以及断开修复单元，用于在断开位置和芯部固定结束位置之间执行自动连接。
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公开(公告)号：US20130112658A1
公开(公告)日：2013-05-09
申请号：US13549432
申请日：2012-07-14
申请人： Takehiro KUDOU , Kaoru HIRAGA
发明人： Takehiro KUDOU , Kaoru HIRAGA
IPC分类号： B23H1/00
摘要： Machining state information is acquired for each predetermined period by performing test machining by means of an electric discharge machine, and the acquired machining state information is compared with reference machining state information, whereby whether a machining state is satisfactory or not is determined. If the machining state is determined to be unsatisfactory, set items of a machining condition are adjusted. Thereafter, test machining is actually performed again, and the machining condition is adjusted by changing the set items if the machining state is determined again to be unsatisfactory. Thus, the acquisition of the machining state information, determination of the machining state, and adjustment of the machining condition are repeated so that satisfactory machining is finally determined.
摘要翻译： 通过利用放电加工机进行试验加工，对于每个预定时间段获得加工状态信息，并且将获得的加工状态信息与参考加工状态信息进行比较，从而确定加工状态是否满意。 如果加工状态被确定为不令人满意，则调整加工条件的设定项目。 此后，再次实际进行试验加工，如果再次确定加工状态不能令人满意，则通过改变设定项目来调整加工条件。 因此，重复加工状态信息的获取，加工状态的确定和加工条件的调整，从而最终确定令人满意的加工。
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公开(公告)号：US20100133237A1
公开(公告)日：2010-06-03
申请号：US11883999
申请日：2006-10-24
申请人： Yasuo Onodera , Tatsushi Sato , Yoshikazu Ukai , Takashi Hashimoto , Koichiro Hattori , Hisashi Yamada
发明人： Yasuo Onodera , Tatsushi Sato , Yoshikazu Ukai , Takashi Hashimoto , Koichiro Hattori , Hisashi Yamada
IPC分类号： B23H1/02
摘要： A wire-discharge machining apparatus controls a short circuit between a wire electrode and a workpiece and wire-breakage, and makes it easy to improve productivity, by performing power supply control to mix an upper-side power supply state in which a high-frequency pulse voltage is applied from an upper-side power supplying unit, a lower-side power supply state in which the high-frequency pulse voltage is applied from a lower-side power supplying unit, and a both-sides power supply state in which the high-frequency pulse voltage is applied to the wire electrode from both power supplying units in synchronization with each other during a period of electric discharge machining.
摘要翻译： 放线加工装置控制线电极和工件之间的短路以及断线，并且通过进行电源控制来容易地提高生产率，以混合高频率的上侧电源状态 从上侧供电单元施加脉冲电压，从下侧供电单元向其施加高频脉冲电压的下侧电源状态，以及双侧供电状态， 在放电加工期间，高频脉冲电压从两个供电单元同时施加到线电极上。
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7.发明授权公开(公告)号：US06469522B2
公开(公告)日：2002-10-22
申请号：US09766849
申请日：2001-01-23
申请人： Koji Akamatsu
发明人： Koji Akamatsu
IPC分类号： G01R2726
摘要： An electrical discharge state detecting device for an electrical discharge machining machine which detects an electrical discharge state during an electrical discharge machining operation. The detecting device includes a high-pass filter for detecting a high-frequency component superimposed on an electrical discharge voltage or an electrical discharge current at a machining clearance between an electrode and a workpiece, a rectifying circuit for outputting a rectified component of the high-frequency component, a first integration circuit for integrating the rectified component, a reference voltage circuit, a second integrating circuit for integrating the reference voltage, a comparator for comparing the two integrated values, an electrical discharge generation detecting circuit for controlling starting and ending of the integrating circuits, a logic circuit, and a delay circuit and reset circuits.
摘要翻译： 一种用于在放电加工操作期间检测放电状态的放电加工机的放电状态检测装置。 检测装置包括：高通滤波器，用于检测叠加在放电电压上的高频分量或电极与工件之间的加工间隙处的放电电流;整流电路，用于输出高频分量的高精度分量， 频率分量，用于积分整流分量的第一积分电路，参考电压电路，用于积分参考电压的第二积分电路，用于比较两个积分值的比较器，用于控制所述基准电压的起始和结束的放电发生检测电路 积分电路，逻辑电路，以及延迟电路和复位电路。
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8.发明授权公开(公告)号：US06208150B1
公开(公告)日：2001-03-27
申请号：US09071942
申请日：1998-05-05
申请人： Koji Akamatsu
发明人： Koji Akamatsu
IPC分类号： G01R2726
摘要： An electrical discharge state detecting device for an electrical discharge machining machine which detects an electrical discharge state during an electrical discharge machining operation. The detecting device includes a high-pass filter for detecting a high-frequency component superimposed on an electrical discharge voltage or an electrical discharge current at a machining clearance between an electrode and a workpiece, a rectifying circuit for outputting a rectified component of the high-frequency component, a first integration circuit for integrating the rectified component, a reference voltage circuit, a second integrating circuit for integrating the reference voltage, a comparator for comparing the two integrated values, an electrical discharge generation detecting circuit for controlling starting and ending of the integrating circuits, a logic circuit, and a delay circuit and reset circuits.
摘要翻译： 一种用于在放电加工操作期间检测放电状态的放电加工机的放电状态检测装置。 检测装置包括：高通滤波器，用于检测叠加在放电电压上的高频分量或电极与工件之间的加工间隙处的放电电流;整流电路，用于输出高频分量的高精度分量， 频率分量，用于积分整流分量的第一积分电路，参考电压电路，用于积分参考电压的第二积分电路，用于比较两个积分值的比较器，用于控制所述基准电压的起始和结束的放电发生检测电路 积分电路，逻辑电路，以及延迟电路和复位电路。
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公开(公告)号：US6043447A
公开(公告)日：2000-03-28
申请号：US986158
申请日：1997-12-05
申请人： Takuji Magara , Takashi Yuzawa
发明人： Takuji Magara , Takashi Yuzawa
CPC分类号： B23H7/18 , B23H1/024 , B23H2400/10
摘要： In machining, a short-circuit determination reference time stored in a parameter memory is changed by a short-circuit determination reference time changing device in response to rpm or a rotational speed of a rotating electrode, duration of a short-circuit detected between the electrodes is measured by a short-circuit duration time determining device, and a short-circuit evading operation is executed by a short-circuit back control device in a case where the duration of a short-circuit has surpassed the short-circuit determination reference time.
摘要翻译： 在加工中，存储在参数存储器中的短路判定基准时间由短路判定基准时间变更装置根据转速或旋转电极的转速而改变，在电极之间检测出短路的持续时间 由短路持续时间确定装置测量，并且在短路持续时间超过短路确定基准时间的情况下，由短路回路控制装置执行短路回避操作。
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公开(公告)号：US5847351A
公开(公告)日：1998-12-08
申请号：US811013
申请日：1997-03-04
摘要： An electrode feeding apparatus for electric-discharge machining by discharging between an electrode and a workpiece in order to machine the workpiece includes an occurrence frequency detecting unit for detecting the occurrence frequency of short-circuit current flowing when the electrode contacts the workpiece and a penetration detecting unit for detecting penetration by the electrode to the workpiece based on the occurrence frequency. According to the present invention, it is possible to detect with high precision penetration by the electrode into the workpiece by utilizing the difference between an occurrence frequency of short-circuit current during electrode discharge machine and the occurrence frequency of the short-circuit current when the electrode has penetrated the workpiece.
摘要翻译： 一种用于通过在电极和工件之间放电以加工工件的放电加工的电极馈送装置包括：出现频率检测单元，用于检测电极接触工件时流动的短路电流的发生频率和穿透检测 基于发生频率检测电极对工件的穿透的单元。 根据本发明，通过利用电极放电机械的短路电流的发生频率与短路电流的发生频率之间的差异，可以将电极的高精度穿透到工件中进行检测 电极已经穿透工件。
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