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1. 发明授权

US06930273B2 Power supply unit for wire electrical discharge machining and method of wire electrical discharge machining 有权
标题翻译：电线放电加工用电源单元和电线放电加工方法
公开(公告)号：US06930273B2
公开(公告)日：2005-08-16
申请号：US10297385
申请日：2001-01-23
申请人： Toshio Nakashima , Kouichirou Hattori , Yoshikazu Ukai , Atsushi Taneda , Akihiro Goto , Takashi Hashimoto
发明人： Toshio Nakashima , Kouichirou Hattori , Yoshikazu Ukai , Atsushi Taneda , Akihiro Goto , Takashi Hashimoto
IPC分类号： B23H1/02 , B23H7/00 , B23H7/04 , C01F11/18 , C05D3/02 , C09C1/02 , B23H7/14
CPC分类号： B23H7/04 , B23H1/022
摘要： A power supply unit for wire electrical discharge machining using an ac high-frequency power supply for applying an ac high-frequency voltage between a wire electrode (1a) and a workpiece (2) includes a high-frequency oscillation and amplification circuit (4) and a pulse power supply (5) which is an ac-high-frequency-voltage intermittently supplying unit for effecting the application of the ac high-frequency voltage between the electrode and the workpiece and a pause thereof. In wire electrical discharge machining using this power supply unit for wire electrical discharge machining, it is possible to suppress the vibration of the wire electrode (1a) due tog the electrostatic force acting between the wire electrode (1a) and the workpiece (2), making it possible to improve the straightness accuracy of a machined surface of the workpiece (2) and make surface roughness small.
摘要翻译：使用用于在线电极（1a）和工件（2）之间施加交流高频电压的交流高频电源的放线加工用电源单元包括高频振荡放大电路（4）以及脉冲电源（5），其是用于在电极和工件之间施加交流高频电压及其暂停的交流高频电压间歇供电单元。在使用该电力供给单元进行电线放电加工的线放电加工中，能够抑制线电极（1a）与线电极（1a）和工件（2）之间的静电力的振动，使得可以提高工件（2）的加工表面的平直度精度，并使表面粗糙度小。

2. 发明申请

US20100294743A1 ELECTRIC DISCHARGE DEVICE 审中-公开
标题翻译：电动放电装置
公开(公告)号：US20100294743A1
公开(公告)日：2010-11-25
申请号：US12864195
申请日：2008-01-31
申请人： Takashi Hashimoto , Koichiro Hattori , Takashi Yuzawa , Yoshikazu Ukai
发明人： Takashi Hashimoto , Koichiro Hattori , Takashi Yuzawa , Yoshikazu Ukai
IPC分类号： B23K15/00
CPC分类号： B23H1/022
摘要： To provide an electric discharge device capable of performing an optimum process that achieves a high-quality process in a satisfactory quality of processing precision and the like. In an electric discharge device that processes a workpiece by electric discharge, a reserve electric-discharge pulse is applied by alternately switching between a positive polarity and a reverse polarity, and a current waveform shape of a main electric-discharge pulse is differentiated corresponding to a polarity of a reserve electric-discharge pulse, to a main electric-discharge pulse to be applied after detecting electric discharge following the reserve electric-discharge pulse. With this arrangement, a processing current shape can be optimized corresponding to an electric discharge characteristic, and thus a high-precision process can be performed.
摘要翻译：提供一种能够以令人满意的加工精度等进行优质加工的最佳工序的放电装置。在通过放电处理工件的放电装置中，通过在正极性和反极性之间交替切换来施加保留放电脉冲，并且主放电脉冲的电流波形形状对应于保留放电脉冲的极性与在保留放电脉冲之后检测到放电后施加的主放电脉冲。通过这种布置，可以根据放电特性来优化处理电流形状，因此可以进行高精度处理。

3. 发明申请

US20100133237A1 Wire-Discharge Machining Apparatus 有权
标题翻译：排线加工设备
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
CPC分类号： B23H1/022 , B23H1/024 , B23H7/04
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。

4. 发明申请

US20100084378A1 WIRE ELECTRICAL DISCHARGE MACHINING APPARATUS 有权
标题翻译：电线放电加工设备
公开(公告)号：US20100084378A1
公开(公告)日：2010-04-08
申请号：US12445207
申请日：2006-10-24
申请人： Yasuo Onodera , Tatsushi Sato , Takashi Hashimoto , Hisashi Yamada , Koichiro Hattori , Yoshikazu Ukai
发明人： Yasuo Onodera , Tatsushi Sato , Takashi Hashimoto , Hisashi Yamada , Koichiro Hattori , Yoshikazu Ukai
IPC分类号： B23H1/02
CPC分类号： B23H7/04
摘要： A machining-energy calculating unit accumulates a discharge current value for each discharge position to calculate a machining energy in a certain time period from the present time to the past time. An energy-distribution changing unit determines the presence or absence of imbalance in the energy by obtaining a machining energy distribution in an up-down direction of the machining gap based on the machining energy, and when there is imbalance, the energy-distribution changing unit produces a new open/close pattern in which a machining energy distribution that eliminates the imbalance. Power feeding is then performed based on the new open/close pattern.
摘要翻译：加工能量计算单元累积针对每个排出位置的排出电流值，以计算从当前时间到过去时间的一定时间段内的加工能量。能量分配改变单元通过基于加工能量获得加工间隙的上下方向的加工能量分布来确定能量的不平衡，并且当存在不平衡时，能量分配改变单元产生新的开/关模式，其中消除不平衡的加工能量分布。然后基于新的开/关模式进行供电。

5. 发明申请

US20080110865A1 Wire Electric Discharge Machining Apparatus And Wire Electric Discharge Machining Method 有权
标题翻译：电线放电加工设备和电线放电加工方法
公开(公告)号：US20080110865A1
公开(公告)日：2008-05-15
申请号：US11665683
申请日：2006-04-05
申请人： Takashi Hashimoto , Tatsushi Satou , Akihiko Iwata , Yoshikazu Ukai , Yasuo Onodera
发明人： Takashi Hashimoto , Tatsushi Satou , Akihiko Iwata , Yoshikazu Ukai , Yasuo Onodera
IPC分类号： B23H1/00
CPC分类号： B23H7/04 , B23H1/022
摘要： A discharge-generation control unit applies at least a preliminary-discharge voltage pulse and a main-discharge voltage pulse between a wire electrode and a work. A discharge-position determining unit determines a discharge position from results of measurement by a plurality of current measuring units. A machining-energy adjusting unit adjusts machining energy generated by the main-discharge voltage pulse based on a discharge position determined before applying the main-discharge voltage pulse, and reflects a result of the adjustment on the generation of an electric discharge by feeding the result to the discharge-generation control unit.
摘要翻译：放电产生控制单元在线电极和工件之间至少施加预放电电压脉冲和主放电电压脉冲。放电位置确定单元通过多个电流测量单元从测量结果确定放电位置。加工能量调节单元基于在施加主放电电压脉冲之前确定的放电位置来调整由主放电电压脉冲产生的加工能量，并且通过馈送结果来反映对放电产生的调整结果到放电产生控制单元。

6. 发明授权

US06806434B1 Electric discharge machine with output power control 失效
标题翻译：放电机具有输出功率控制
公开(公告)号：US06806434B1
公开(公告)日：2004-10-19
申请号：US10296329
申请日：2002-11-22
申请人： Akihiro Suzuki , Akihiko Iwata , Takashi Hashimoto , Yoshikazu Tsunoda , Hideaki Hayashi , Atsushi Taneda
发明人： Akihiro Suzuki , Akihiko Iwata , Takashi Hashimoto , Yoshikazu Tsunoda , Hideaki Hayashi , Atsushi Taneda
IPC分类号： B23H102
CPC分类号： B23H1/022 , B23H2300/22
摘要： An electric discharge machine in which electric power for working is supplied between an electrode and workpiece by an electric power unit so as to generate electric discharge between the electrode and workpiece and conduct machining on the workpiece, the electric discharge machine having a voltage detector for detecting output voltage V of a DC electric power source of the electric power unit; a current detector for detecting output current I of the DC electric power source of the electric power unit; a calculator for calculating product V·I of V and I; and a controller for controlling output electric power of the electric power unit to be constant on the basis of a difference between a working command signal for giving a predetermined electric power command and V·I. Even when load impedance fluctuates, it is possible to suppress the fluctuation of electric discharge power, so that surface roughness on a machined face of the workpiece can be made uniform.
摘要翻译：一种放电机，其中通过电力单元在电极和工件之间供应用于工作的电力，以在电极和工件之间产生放电并对工件进行加工，该放电机具有用于检测的电压检测器电力单元的直流电源的输出电压V; 电流检测器，用于检测电力单元的直流电源的输出电流I; 用于计算V和I的乘积V.I的计算器; 以及控制器，用于基于用于给出预定电力指令的工作指令信号和V.I之间的差来控制电力单元的输出功率恒定。即使负载阻抗波动，也可以抑制放电功率的波动，能够使加工面上的表面粗糙度均匀。

7. 发明授权

US06630641B2 Electric discharge machining apparatus generating preliminary discharge and machining discharge pulses 失效
标题翻译：放电加工装置产生预备放电并加工放电脉冲
公开(公告)号：US06630641B2
公开(公告)日：2003-10-07
申请号：US09848344
申请日：2001-05-04
申请人： Taichiro Tamida , Takashi Hashimoto , Akihiro Suzuki , Akihiko Iwata , Atsushi Taneda
发明人： Taichiro Tamida , Takashi Hashimoto , Akihiro Suzuki , Akihiko Iwata , Atsushi Taneda
IPC分类号： B23H102
CPC分类号： B23H1/022 , B23H2300/20
摘要： An electric discharge machining apparatus includes a wire electrode for machining a workpiece, and a first voltage applying unit for applying a voltage pulse. The voltage pulse has a rise time longer than a discharge formative time lag when a rectangular voltage pulse is applied, when a distance between the workpiece and the wire is an average value in machining, and rises to the same voltage as the rectangular voltage pulse.
摘要翻译：放电加工装置包括用于加工工件的线电极和用于施加电压脉冲的第一施加电压单元。当施加矩形电压脉冲时，当工件和线之间的距离是加工中的平均值时，电压脉冲具有比放电形成时滞更长的上升时间，并且上升到与矩形电压脉冲相同的电压。

8. 发明申请

US20140097909A1 HIGH-FREQUENCY POWER SOURCE GENERATION DEVICE 有权
标题翻译：高频电源产生装置
公开(公告)号：US20140097909A1
公开(公告)日：2014-04-10
申请号：US14116900
申请日：2012-05-21
申请人： Takashi Hashimoto , Junichi Shibata , Yoshikazu Ukai
发明人： Takashi Hashimoto , Junichi Shibata , Yoshikazu Ukai
IPC分类号： H03K3/354
CPC分类号： H03K3/354 , B23H1/022 , B23H2300/20 , B23H2300/22
摘要： A high-frequency power source generation device includes switching element groups having a configuration in which a plurality of switching elements turned on/off cyclically are connected in parallel. One parallel connection terminal of the switching element group is connected to a positive electrode terminal of a DC power source, and one parallel connection terminal of the switching element group is connected to a negative electrode terminal of the DC power source. Respective other parallel connection terminals of the switching element groups are connected via a reactor. A pulse voltage that appears at opposite ends of the reactor due to a cyclic on/off operation of the switching element groups is applied to a load through a coaxial cable and a matching circuit.
摘要翻译：高频电源发生装置具有并联连接有多个开关元件的导通/截止的开关元件组。开关元件组的一个并联连接端子连接到直流电源的正极端子，并且开关元件组的一个并联连接端子连接到直流电源的负极端子。开关元件组的各个其他并联端子通过反应器连接。由于开关元件组的周期性开/关操作而出现在电抗器的相对端的脉冲电压通过同轴电缆和匹配电路施加到负载上。

9. 发明授权

US08309876B2 Electric discharge machining apparatus and electric discarge machining method 有权
标题翻译：放电加工装置和电动放大加工方法
公开(公告)号：US08309876B2
公开(公告)日：2012-11-13
申请号：US12865655
申请日：2008-01-31
申请人： Takashi Hashimoto , Takashi Yuzawa , Koichiro Hattori , Yoshikazu Ukai
发明人： Takashi Hashimoto , Takashi Yuzawa , Koichiro Hattori , Yoshikazu Ukai
IPC分类号： B23H1/00
CPC分类号： B23H1/022
摘要： In a waveform of switching signals, which is output from a full-bridge circuit formed of four switching elements, includes a normal polarity pulse group and a reversed polarity pulse group for controlling an output timing of voltage pulses. A duty cycle of the normal polarity pulse group containing a plurality of normal polarity pulses, which apply a positive power-supply polarity to a workpiece and apply a negative power-supply polarity to a machining-purpose electrode, is configured so as to be different from a duty cycle of the reversed polarity pulse group containing a plurality of reversed polarity pulses, which apply a negative power-supply polarity to the workpiece and apply a positive power-supply polarity to the machining-purpose electrode.
摘要翻译：在从由四个开关元件构成的全桥电路输出的开关信号的波形中，包括用于控制电压脉冲的输出定时的正极性脉冲组和反极性脉冲组。将包含对工件施加正电源极性并向加工用电极施加负电源极性的多个正常极性脉冲的正常极性脉冲群的占空比构成为不同从包含多个反极性脉冲的反极性脉冲组的占空比，向工件施加负电源极性，并向加工用电极施加正电源极性。

10. 发明授权

US07638726B2 Wire electric discharge machining apparatus and wire electric discharge machining method 有权
标题翻译：线放电加工装置及线放电加工方法
公开(公告)号：US07638726B2
公开(公告)日：2009-12-29
申请号：US11665683
申请日：2006-04-05
申请人： Takashi Hashimoto , Tatsushi Satou , Akihiko Iwata , Yoshikazu Ukai , Yasuo Onodera
发明人： Takashi Hashimoto , Tatsushi Satou , Akihiko Iwata , Yoshikazu Ukai , Yasuo Onodera
IPC分类号： B23H7/02 , B23H7/20
CPC分类号： B23H7/04 , B23H1/022
摘要： A discharge-generation control unit applies at least a preliminary-discharge voltage pulse and a main-discharge voltage pulse between a wire electrode and a work. A discharge-position determining unit determines a discharge position from results of measurement by a plurality of current measuring units. A machining-energy adjusting unit adjusts machining energy generated by the main-discharge voltage pulse based on a discharge position determined before applying the main-discharge voltage pulse, and reflects a result of the adjustment on the generation of an electric discharge by feeding the result to the discharge-generation control unit.
摘要翻译：放电产生控制单元在线电极和工件之间至少施加预放电电压脉冲和主放电电压脉冲。放电位置确定单元通过多个电流测量单元从测量结果确定放电位置。加工能量调节单元基于在施加主放电电压脉冲之前确定的放电位置来调整由主放电电压脉冲产生的加工能量，并且通过馈送结果来反映对放电产生的调整结果到放电产生控制单元。

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