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公开(公告)号：US20130140276A1
公开(公告)日：2013-06-06
申请号：US13638410
申请日：2011-12-02
IPC分类号： B23H1/02
摘要： A controller of an electrical discharge machine comprises: a control unit that controls a machining condition set by the electrical discharge machine; an acquisition unit that acquires a parameter indicating an electrical discharge state between poles in a state where the machining condition is controlled by the control unit so that a normal electrical discharge occurs between the poles; an arithmetic unit that obtains a probability density distribution of the acquired parameter; a decision unit that decides a threshold that specifies a boundary between a normal electrical discharge and an abnormal electrical discharge between the poles based on the obtained probability density distribution; and a discrimination unit that discriminates whether the electrical discharge state between the poles is normal or abnormal by using the decided threshold, and wherein the control unit controls the machining condition based on a discrimination result of the discrimination unit.
摘要翻译： 放电机的控制器包括：控制单元，控制由放电机设定的加工条件; 获取单元，其在由所述控制单元控制所述加工条件的状态下获取指示极点之间的放电状态的参数，使得在所述极之间发生正常的放电; 获得所获取的参数的概率密度分布的算术单元; 决定单元，基于获得的概率密度分布，决定指定正常放电与极点之间的异常放电的边界的阈值; 以及鉴别单元，其通过使用所确定的阈值来鉴别所述极点之间的放电状态是正常还是异常，并且其中所述控制单元基于所述鉴别单元的识别结果来控制所述加工条件。
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公开(公告)号：US08519295B2
公开(公告)日：2013-08-27
申请号：US13638410
申请日：2011-12-02
摘要： A controller of an electrical discharge machine comprises: a control unit that controls a machining condition set by the electrical discharge machine; an acquisition unit that acquires a parameter indicating an electrical discharge state between poles in a state where the machining condition is controlled by the control unit so that a normal electrical discharge occurs between the poles; an arithmetic unit that obtains a probability density distribution of the acquired parameter; a decision unit that decides a threshold that specifies a boundary between a normal electrical discharge and an abnormal electrical discharge between the poles based on the obtained probability density distribution; and a discrimination unit that discriminates whether the electrical discharge state between the poles is normal or abnormal by using the decided threshold, and wherein the control unit controls the machining condition based on a discrimination result of the discrimination unit.
摘要翻译： 放电机的控制器包括：控制单元，控制由放电机设定的加工条件; 获取单元，其在由所述控制单元控制所述加工条件的状态下获取指示极点之间的放电状态的参数，使得在所述极之间发生正常的放电; 获得所获取的参数的概率密度分布的算术单元; 决定单元，基于获得的概率密度分布，决定指定正常放电与极点之间的异常放电的边界的阈值; 以及鉴别单元，其通过使用所确定的阈值来鉴别所述极点之间的放电状态是正常还是异常，并且其中所述控制单元基于所述鉴别单元的识别结果来控制所述加工条件。
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公开(公告)号：US09718140B2
公开(公告)日：2017-08-01
申请号：US14439598
申请日：2012-12-06
CPC分类号： B23H1/024
摘要： An electric discharge machining system is provided which distinguishes an abnormal discharge caused by an immediate discharge and an abnormal discharge caused not by the immediate discharge to suitably control in each case. The electric discharge machining system according to the present invention that machines a workpiece by producing a discharge between an electrode and the workpiece, includes: a no-load-time detection means that detects no-load time of inter-electrode voltage between the electrode and the workpiece; an immediate-discharge determination means that compares the no-load time detected by the no-load-time detection means with predetermined time to determine whether or not the discharge is an immediate discharge; a voltage detection means that detects the inter-electrode voltage; an abnormal-discharge determination means that compares the voltage detected by the voltage detection means with a predetermined value to determine whether or not the discharge is a normal discharge; a discharge state assessment means that assesses a state of the discharge on the basis of the determination result of the immediate-discharge determination means and the determination result of the abnormal-discharge determination means; and a machining condition control means that controls a machining condition on the basis of the discharge state assessed by the discharge state assessment means.
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公开(公告)号：US09278400B2
公开(公告)日：2016-03-08
申请号：US13993124
申请日：2012-07-25
CPC分类号： B23H1/024
摘要： An electric-discharge machining device including an electric-discharge-state determination unit that determines whether an electric discharging state between a machining electrode and a workpiece is either a state of normal electric discharge or of abnormal electric discharge, and a machining-condition switching unit that changes at least one machining condition, further includes a storage unit that stores therein an electric-discharge-state determination indicator, a standard-deviation calculation unit, and a boundary calculation unit that calculates a boundary to be applied to a determination in the electric-discharge-state determination unit based on the electric-discharge-state determination indicator, wherein the machining-condition switching unit changes the machining condition according to a comparison result between the standard deviation calculated by the standard-deviation calculation unit and a standard deviation reference set as a reference of the standard deviation.
摘要翻译： 一种放电加工装置，包括：放电状态判定单元，判定加工用电极与工件之间的放电状态是正常放电状态还是异常放电状态;加工条件切换单元 其改变至少一个加工条件，还包括存储单元，其中存储放电状态确定指示符，标准偏差计算单元和边界计算单元，所述边界计算单元计算要应用于电气中的确定的边界 - 放电状态确定单元，其中所述加工条件切换单元根据由所述标准偏差计算单元计算的标准偏差与标准偏差基准之间的比较结果来改变加工条件 设定为标准偏差的参考。
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公开(公告)号：US20140027409A1
公开(公告)日：2014-01-30
申请号：US13993124
申请日：2012-07-25
IPC分类号： B23H1/02
CPC分类号： B23H1/024
摘要： An electric-discharge machining device including an electric-discharge-state determination unit that determines whether an electric discharging state between a machining electrode and a workpiece is either a state of normal electric discharge or of abnormal electric discharge, and a machining-condition switching unit that changes at least one machining condition, further includes a storage unit that stores therein an electric-discharge-state determination indicator, a standard-deviation calculation unit, and a boundary calculation unit that calculates a boundary to be applied to a determination in the electric-discharge-state determination unit based on the electric-discharge-state determination indicator, wherein the machining-condition switching unit changes the machining condition according to a comparison result between the standard deviation calculated by the standard-deviation calculation unit and a standard deviation reference set as a reference of the standard deviation.
摘要翻译： 一种放电加工装置，包括：放电状态判定单元，判定加工用电极与工件之间的放电状态是正常放电状态还是异常放电状态;加工条件切换单元 其改变至少一个加工条件，还包括存储单元，其中存储放电状态确定指示符，标准偏差计算单元和边界计算单元，所述边界计算单元计算要应用于电气中的确定的边界 - 放电状态确定单元，其中所述加工条件切换单元根据由所述标准偏差计算单元计算的标准偏差与标准偏差基准之间的比较结果来改变加工条件 设定为标准偏差的参考。
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公开(公告)号：US20130092660A1
公开(公告)日：2013-04-18
申请号：US13805581
申请日：2010-06-22
申请人： Kazunari Morita , Hiroki Hikosaka
发明人： Kazunari Morita , Hiroki Hikosaka
IPC分类号： B23H1/00
摘要： To keep an electric discharge state in an electric-discharge machining device constant, an electric-discharge machining control device includes: a machining power supply that applies a pulsed voltage to a minute gap between an electrode and a workpiece that are arranged to oppose to each other with a predetermined gap therebetween to generate electric discharge; a state amount detector that detects an inter-electrode voltage in the minute gap between the electrode and the workpiece; an electrode-vibration-state detection unit that detects an amplitude of the inter-electrode voltage obtained by the state amount detector; an adjustment-factor setting unit that sets a factor by which an inter-electrode average voltage obtained by the state amount detector is to be multiplied, based on an amplitude of an inter-electrode voltage obtained by the electrode-vibration-state detection unit; and an evaluation-voltage setting unit that sets an evaluation voltage based on the factor outputted from the adjustment-factor setting unit.
摘要翻译： 为了在放电加工装置中保持放电状态恒定，放电加工控制装置包括：将电极和工件之间的微小间隙施加脉冲电压的加工电源，其布置成与每个 另一个具有预定的间隙以产生放电; 状态量检测器，其检测所述电极和所述工件之间的微小间隙中的电极间电压; 电极振动状态检测单元，其检测由所述状态量检测器获得的所述电极间电压的振幅; 调整因子设定单元，其基于由电极振动状态检测单元获得的电极间电压的振幅，设定通过状态量检测器获得的电极间平均电压相乘的因子; 以及评价电压设定单元，其基于从所述调整因子设定单元输出的因子来设定评价电压。
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7.发明申请POWER SUPPLY DEVICE FOR ELECTRICAL DISCHARGE MACHINE AND CONTROL METHOD THEREFOR 审中-公开电力放电机用电源装置及其控制方法公开(公告)号：US20120228268A1
公开(公告)日：2012-09-13
申请号：US13263863
申请日：2011-02-25
申请人： Kazunari Morita , Hiroki Hikosaka
发明人： Kazunari Morita , Hiroki Hikosaka
IPC分类号： B23H1/00
CPC分类号： B23H1/022
摘要： The power supply device for electrical discharge machine is equipped with a capacitor that stores electric charge, a DC power supply V that charges the capacitor, a first switching element that generates a pulse-like discharge by applying the electric charge stored in the capacitor to an electrode gap, and a control unit that controls ON/OFF of the first switching element based on a voltage of the electrode gap. After controlling the first switching element to be ON so as to apply the electric charge stored in the capacitor to the electrode gap, the control unit changes an amount of time from a point when the voltage of the electrode gap is decreased to a predetermined value or lower to a point when the first switching element is controlled to be OFF, so as to control the magnitude of a discharge pulse generated in the electrode gap.
摘要翻译： 放电机的电源装置配备有蓄电器的电容器，对电容器充电的直流电源V，通过将存储在电容器中的电荷施加到电容器而产生脉冲状放电的第一开关元件 电极间隙，以及基于电极间隙的电压来控制第一开关元件的接通/断开的控制单元。 在将第一开关元件控制为导通以将存储在电容器中的电荷施加到电极间隙之后，控制单元将电极间隙的电压降低到预定值的时间改变，或 低于当第一开关元件被控制为OFF时的点，以便控制在电极间隙中产生的放电脉冲的幅度。
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公开(公告)号：US08420973B2
公开(公告)日：2013-04-16
申请号：US11884000
申请日：2006-10-20
申请人： Hiroshi Ukai , Kazunari Morita , Shiro Sasaki
发明人： Hiroshi Ukai , Kazunari Morita , Shiro Sasaki
IPC分类号： B23H1/02
摘要： A power-supply control device includes a high-frequency component detecting unit, a machining voltage level detecting device, a no-load time detecting device, and a pulse control device. The high-frequency component detecting unit detects a high-frequency component of discharge voltage at a machining gap. The machining voltage level detecting device detects a discharge voltage level at the machining gap. The no-load time detecting device detects delay time of discharge of the discharge voltage at the machining gap. The high-frequency component is compared with a reference value to obtain a first comparison result. The discharge voltage level is compared with a reference level to obtain a second comparison result. The pulse control device controls pulse off time based on the first comparison result and the detected delay time, and cuts off a discharge pulse based on the second comparison result.
摘要翻译： 电源控制装置包括高频分量检测单元，加工电压电平检测装置，空载时间检测装置和脉冲控制装置。 高频分量检测单元检测加工间隙的放电电压的高频分量。 加工电压电平检测装置检测加工间隙的放电电压电平。 空载时间检测装置检测在加工间隙的放电电压的放电延迟时间。 将高频分量与参考值进行比较以获得第一比较结果。 将放电电压电平与参考电平进行比较以获得第二比较结果。 脉冲控制装置基于第一比较结果和检测到的延迟时间来控制脉冲关闭时间，并且基于第二比较结果切断放电脉冲。
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公开(公告)号：US08134096B2
公开(公告)日：2012-03-13
申请号：US11910228
申请日：2006-10-20
申请人： Hiroshi Ukai , Kazunari Morita , Shiro Sasaki
发明人： Hiroshi Ukai , Kazunari Morita , Shiro Sasaki
摘要： A power-supply control device includes a high-frequency component detecting unit, a machining voltage level detecting device, and a pulse control device. The high-frequency component detecting unit detects a high-frequency component of discharge voltage at a machining gap. The machining voltage level detecting device detects a discharge voltage level at the machining gap. The high-frequency component is compared with a reference high-frequency component to obtain a first comparison result. The discharge voltage level is compared with a reference voltage level to obtain a second comparison result. The pulse control device controls pulse off time based on the first comparison result, and cuts off a discharge pulse based on the second comparison result.
摘要翻译： 电源控制装置包括高频分量检测单元，加工电压电平检测装置和脉冲控制装置。 高频分量检测单元检测加工间隙的放电电压的高频分量。 加工电压电平检测装置检测加工间隙的放电电压电平。 将高频分量与参考高频分量进行比较以获得第一比较结果。 将放电电压电平与参考电压电平进行比较，以获得第二比较结果。 脉冲控制装置基于第一比较结果控制脉冲关闭时间，并根据第二比较结果切断放电脉冲。
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公开(公告)号：US20100147805A1
公开(公告)日：2010-06-17
申请号：US11884000
申请日：2006-10-20
申请人： Hiroshi Ukai , Kazunari Morita , Shiro Sasaki
发明人： Hiroshi Ukai , Kazunari Morita , Shiro Sasaki
IPC分类号： B23H1/02
摘要： A power-supply control device includes a high-frequency component detecting unit, a machining voltage level detecting device, a no-load time detecting device, and a pulse control device. The high-frequency component detecting unit detects a high-frequency component of discharge voltage at a machining gap. The machining voltage level detecting device detects a discharge voltage level at the machining gap. The no-load time detecting device detects delay time of discharge of the discharge voltage at the machining gap. The high-frequency component is compared with a reference value to obtain a first comparison result. The discharge voltage level is compared with a reference level to obtain a second comparison result. The pulse control device controls pulse off time based on the first comparison result and the detected delay time, and cuts off a discharge pulse based on the second comparison result.
摘要翻译： 电源控制装置包括高频分量检测单元，加工电压电平检测装置，空载时间检测装置和脉冲控制装置。 高频分量检测单元检测加工间隙的放电电压的高频分量。 加工电压电平检测装置检测加工间隙的放电电压电平。 空载时间检测装置检测在加工间隙的放电电压的放电延迟时间。 将高频分量与参考值进行比较以获得第一比较结果。 将放电电压电平与参考电平进行比较以获得第二比较结果。 脉冲控制装置基于第一比较结果和检测到的延迟时间来控制脉冲关闭时间，并且基于第二比较结果切断放电脉冲。
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