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1. 发明申请

US20050127041A1 Electric power unit for machining of wire electric discharge machine 失效
标题翻译：电火花加工机组
公开(公告)号：US20050127041A1
公开(公告)日：2005-06-16
申请号：US10415749
申请日：2002-06-12
申请人： Hiroatsu Kobayashi , Takuji Magara
发明人： Hiroatsu Kobayashi , Takuji Magara
IPC分类号： B23H1/02 , B23H7/04
CPC分类号： B23H1/022 , B23H7/04
摘要： An electric power unit for machining of a wire electric discharge machine for machining a workpiece (W) in which an electric discharge inductive pulse voltage is impressed upon between electrodes of a wire electrode (E) and workpiece (W), after insulation between the electrodes has been broken by the pulse voltage and electric discharge has been induced, a pulse voltage for machining is impressed upon between the electrodes so as to conduct machining on the workpiece (W). The electric power unit for machining of a wire electric discharge machine includes an electric discharge state discriminating means (1a) for discriminating a state of electric discharge generated between the electrodes and an impression voltage selecting means (1b) for inverting the polarity of the electric discharge inductive pulse voltage from the previous electric discharge inductive pulse voltage when an electric discharge state between the electrodes is discriminated to be abnormal (Y1) or open (Y3) by the electric discharge state discriminating means (1a) and for making the polarity of the electric discharge inductive pulse voltage to be the same as the polarity of the previous electric discharge inductive pulse voltage when the electric discharge state between the electrodes is discriminated to be normal (Y2) by the electric discharge state discriminating means. Thus the machining efficiency is improved.
摘要翻译：一种用于加工电线放电机的电力单元，用于加工在电极（E）和工件（W）的电极之间施加放电感应脉冲电压的工件（W），在电极已经被脉冲电压破坏，并且已经感应出放电，用于加工的脉冲电压施加在电极之间，以便对工件（W）进行加工。用于加工电火花线切割机的电力单元包括用于鉴别电极之间产生的放电状态的放电状态判别装置（1a）和用于使电极的极性反转的压电电压选择装置（1b）当电极之间的放电状态被放电状态判别装置（1a）识别为异常（Y 1）或断开（Y 3）时，来自先前放电感应脉冲电压的放电感应脉冲电压，当通过放电状态判别装置将电极之间的放电状态判断为正常（Y 2）时，放电感应脉冲电压的极性与先前放电感应脉冲电压的极性相同。因此提高了加工效率。

2. 发明授权

US6086684A Electric discharge surface treating method and apparatus 失效
标题翻译：放电表面处理方法及装置
公开(公告)号：US6086684A
公开(公告)日：2000-07-11
申请号：US88658
申请日：1998-06-02
申请人： Nagao Saito , Naotake Mohri , Yoshiki Tsunekawa , Kohei Shimamoto , Akihiro Goto , Takuji Magara , Yoshihito Imai , Hidetaka Miyake
发明人： Nagao Saito , Naotake Mohri , Yoshiki Tsunekawa , Kohei Shimamoto , Akihiro Goto , Takuji Magara , Yoshihito Imai , Hidetaka Miyake
IPC分类号： C23C8/02 , C23C8/36 , C23C26/00 , C23C30/00 , C23C4/10 , C23C4/00 , C23C8/24 , C23C8/26
CPC分类号： C23C30/005 , C23C26/00 , C23C8/02 , C23C8/36
摘要： A surface treating is performed by an electric discharge. The electric discharge is generated by applying a voltage between an electrode and a metal workpiece. The electrode is a solid or green compact electrode or the like which is made of a reforming material. The workpiece may be an end mill or the like. Then, a coating layer is formed on a surface of the metal workpiece. Thereafter, a nitriding treatment is performed on the coating layer in a nitriding vessel or the like. Thus, a hard coating layer of better quality is formed on the surface of the workpiece whether a material of the workpiece is steel or hard metal.
摘要翻译：表面处理通过放电进行。通过在电极和金属工件之间施加电压来产生放电。电极是由重整材料制成的固体或绿色致密电极等。工件可以是立铣刀等。然后，在金属工件的表面上形成涂层。此后，在氮化容器等中的涂层上进行氮化处理。因此，无论工件的材料是钢还是硬金属，都在工件的表面上形成质量更好的硬涂层。

3. 发明授权

US5177334A Wire cut electric discharge machining apparatus 失效
标题翻译：电线切断电机加工设备
公开(公告)号：US5177334A
公开(公告)日：1993-01-05
申请号：US755225
申请日：1991-09-05
申请人： Takuji Magara , Yoshio Shibata , Masahiro Yamamoto , Kazuo Tsurumoto
发明人： Takuji Magara , Yoshio Shibata , Masahiro Yamamoto , Kazuo Tsurumoto
IPC分类号： B23H7/04 , B23H7/10
CPC分类号： B23H7/101 , B23H7/04
摘要： A wire cut electric discharge machining apparatus capable of machining a workpiece with a machining solution to produce a work having a desired shape. The work is magnetically attracted to be held and conveyed to a desired position by one of a pair of nozzles through which the machining solution is supplied to an interelectrode gap between the workpiece and a wire-shaped electrode. Since the attraction condition is controlled to be maintained unchanged, it is possible to move and convey the work and the like to the desired position with high accuracy and safety.
摘要翻译：一种线切割放电加工装置，其能够利用机械加工方法加工工件，以生产具有所需形状的工件。通过一对喷嘴将工件磁力吸引并保持并传送到期望的位置，通过该喷嘴将加工溶液提供给工件和线状电极之间的电极间间隙。由于吸引条件被控制为保持不变，可以以高精度和安全的方式将工件等移动并传送到期望的位置。

4. 发明授权

US5149931A Power source for electric discharge machining 失效
标题翻译：电力放电电源
公开(公告)号：US5149931A
公开(公告)日：1992-09-22
申请号：US501895
申请日：1990-03-30
申请人： Takuji Magara
发明人： Takuji Magara
IPC分类号： B23H1/02 , B23H7/04
CPC分类号： B23H1/022 , B23H7/04 , B23H2300/20 , B23H2300/22
摘要： A power source for electric discharge machining, which performs a semi-mirror-finish machining operation with a surface roughness of 1 .mu.m Rmax or less. The power source includes either a resonance circuit or an impedance matching circuit so that the electric discharge is carried out under the condition that resonance is caused to occur with the capacitance of an interelectrode gap between an electrode and a workpiece to be machined or the impedance-matching is effected in response to variation in interelectrode condition. With such a power source, it is possible to eliminate the effect of the stray capacitance exsiting in a current supplying line and also to eliminate the shortcoming due to variation on the interelectrode condition, and therefore a mirror-finished machining operation can be stably carried out to provide machined surfaces excellent in surface roughness.
摘要翻译：一种用于放电加工的电源，其进行表面粗糙度为1μm以上的半镜面精加工操作Rmax以下。电源包括谐振电路或阻抗匹配电路，使得在电极和要被加工的工件之间的电极间间隙的电容发生共振的情况下进行放电，响应于电极间条件的变化而进行匹配。通过这样的电源，能够消除电流供给线中的杂散电容的影响，并且消除由于电极间状态的变化引起的缺点，因此可以稳定地进行镜面加工操作以提供表面粗糙度优异的加工表面。

5. 发明授权

US5073691A Wire electrode feeding device in wire cut electric discharge machine 失效
标题翻译：线切割放电机中的线电极馈电装置
公开(公告)号：US5073691A
公开(公告)日：1991-12-17
申请号：US457787
申请日：1989-12-29
申请人： Takuji Magara , Takeshi Iwasaki , Toshio Suzuki , Masahiro Yamamoto
发明人： Takuji Magara , Takeshi Iwasaki , Toshio Suzuki , Masahiro Yamamoto
IPC分类号： B23H7/10
CPC分类号： B23H7/10 , B23H7/101
摘要： In a wire electrode feeding device in a wire cut electric discharge machine, a roller unit having a fluid inlet, a fluid outlet, and a rotor which is rotated by fluid supplied thereinto, a guide pipe connected to the fluid outlet of the roller unit, and a wire electrode winding mechanism provided near the fluid outlet of the guide pipe are used to convey and remove the wire electrode which is conveyed through a lower electrode guide and an electric feeder. As the fluid is supplied into the roller unit through the fluid inlet, the rotor is rotated, so that the direction of movement of the wire electrode is changed, and the wire electrode is conveyed through the fluid outlet of the roller unit and the guide pipe to the wire electrode winding mechanism by the fluid, thus being discharged out of the machine.
摘要翻译： PCT No.PCT / JP89 / 00446 Sec。 371日期1989年12月29日第 102（e）1989年12月29日PCT PCT 1989年4月27日提交PCT。公开号WO90 / 12672 日期：1990年1月11日。在线切割放电机中的线电极馈送装置中，具有流体入口，流体出口和通过供给流体的流体旋转的转子的滚子单元，连接到辊单元的流体出口和设置在引导管的流体出口附近的线电极绕线机构用于输送和移除通过下电极引导件和电加料器输送的线电极。当通过流体入口将流体供应到辊单元中时，转子旋转，使得线电极的移动方向改变，并且线电极通过辊单元的流体出口和导管通过流体到线电极绕线机构，从而被排出机器。

6. 发明授权

US5064984A Power supply unit electric discharge machining apparatus 失效
标题翻译：电源单元放电加工装置
公开(公告)号：US5064984A
公开(公告)日：1991-11-12
申请号：US582066
申请日：1990-09-14
申请人： Masahiro Yamamoto , Takuji Magara
发明人： Masahiro Yamamoto , Takuji Magara
IPC分类号： B23H1/02
CPC分类号： B23H1/022
摘要： A power supply unit in an electric discharge machining apparatus which is capable of supplying an AC pulse signal whose polarity is varied alternately. Due to the application of AC pulse signal to an interelectrode gap, it is possible to prevent the surface of a workpiece to be machined from being electrolytically corroded, electrolyzed and magnetized.
摘要翻译：一种放电加工装置中的电源单元，其能够提供极性交替变化的交流脉冲信号。由于将AC脉冲信号应用于电极间间隙，可以防止加工工件的表面被电解腐蚀，电解和磁化。

7. 发明授权

US5006692A Wire electrode supplying device for use in a wire cut electric discharge machining apparatus 失效
标题翻译：用于线切割放电加工装置的线电极供给装置
公开(公告)号：US5006692A
公开(公告)日：1991-04-09
申请号：US353421
申请日：1989-05-18
申请人： Takuji Magara , Takeshi Iwasaki , Toshio Suzuki , Masahiro Yamamoto
发明人： Takuji Magara , Takeshi Iwasaki , Toshio Suzuki , Masahiro Yamamoto
IPC分类号： B23H7/10
CPC分类号： B23H7/102
摘要： A wire electrode supplying device in a wire cut electric discharge machining apparatus, which is capable of automatically supplying a wire electrode with accuracy during an automatic machining operation. In the wire electrode supplying device according to the present invention, an outside diameter of a pipe guide into which the wire electrode is inserted is changed stepwise, and its one end portion is made minimum in outside diameter so that the one end portion is allowed to be inserted into a machining start hole formed in a workpiece to be machined. Therefore, in machining a workpiece having a machining start hole small in diameter, the feeding of the wire electrode can be automatically, stably and accurately achieved.
摘要翻译：一种线切割放电加工装置中的线电极供给装置，其能够在自动加工操作期间自动提供线电极。在根据本发明的线电极供给装置中，线引导件的插入线管的外径逐步变化，其一端部的外径最小，使得一端部被允许被插入形成在待加工的工件中的加工起始孔中。因此，在加工具有直径小的加工起动孔的工件时，可以自动，稳定且准确地实现线电极的供给。

8. 发明授权

US4837415A Wire electrode type electric discharge machining apparatus 失效
标题翻译：线电极型放电加工机
公开(公告)号：US4837415A
公开(公告)日：1989-06-06
申请号：US112170
申请日：1987-10-26
申请人： Takuji Magara , Toshio Suzuki
发明人： Takuji Magara , Toshio Suzuki
IPC分类号： B23H7/02 , B23H7/06
CPC分类号： B23H7/065 , B23H2600/12
摘要： A wire electrode type electric discharge machining apparatus comprising a control means for controlling an interelectrode gap between a wire electrode and a workpiece to be machined to correct for a change which is caused by a change in the amount of machining removal at a corner. The machining accuracy of the wire electrode type electric discharge machining apparatus is remarkably improved.
摘要翻译：一种线电极型放电加工装置，包括控制装置，用于控制线电极和待加工的工件之间的电极间间隙，以校正由拐角处的加工去除量的变化引起的变化。线电极型放电加工装置的加工精度显着提高。

9. 发明授权

US4631382A Bed for electrical discharge machining apparatus 失效
标题翻译：放电加工机床
公开(公告)号：US4631382A
公开(公告)日：1986-12-23
申请号：US651568
申请日：1984-09-18
申请人： Tokio Fukunaga , Takuji Magara , Shigekazu Sakabe , Jun Aramaki , Toshiharu Karashima , Minoru Ushida
发明人： Tokio Fukunaga , Takuji Magara , Shigekazu Sakabe , Jun Aramaki , Toshiharu Karashima , Minoru Ushida
IPC分类号： B23H11/00 , B23Q1/01 , F16M5/00 , B23H1/00 , A47B7/02 , B23H7/32
CPC分类号： B23Q1/01 , B23H11/00 , F16M5/00
摘要： An electrical discharge machining apparatus having an improved bed which provides improved control over the gap between a machining head and a workpiece by reducing the amount of deformation produced in the bed when the table and saddle are moved. The bed is constituted by an upper plate and side plates, with saddle guide rails being disposed on the upper plate, a saddle movably mounted on the saddle guide rails, table guide rails mounted on the saddle, and a workpiece-supporting table movably mounted on the saddle guide rails. In accordance with one embodiment of the invention, the saddle guide rails are positioned at the edges of the upper plate, directly above the side plates of the bed. In another embodiment, reinforcing members are provided under the upper plate, extending parallel to and directly under respective ones of guide rails.
摘要翻译：一种具有改进床的放电加工装置，其通过减小床和鞍座移动时在床中产生的变形量来提高对加工头和工件之间的间隙的控制。床由上板和侧板构成，鞍形导轨设置在上板上，鞍座可移动地安装在鞍座导轨上，安装在鞍座上的工作台导轨和可移动地安装在鞍座导轨上的工件支撑台鞍座导轨。根据本发明的一个实施例，鞍形导轨位于上板的边缘，正好位于床的侧板上方。在另一个实施例中，加强构件设置在上板下方，平行于和直接位于相应的导轨下方。

10. 发明授权

US07109432B2 Electric power unit for machining of wire electric discharge machine 失效
标题翻译：电火花加工机组
公开(公告)号：US07109432B2
公开(公告)日：2006-09-19
申请号：US10415749
申请日：2002-06-12
申请人： Hiroatsu Kobayashi , Takuji Magara
发明人： Hiroatsu Kobayashi , Takuji Magara
IPC分类号： B23H7/04 , B23H7/14
CPC分类号： B23H1/022 , B23H7/04
摘要： The electric power unit for machining of a wire electric discharge machine includes an electric discharge state discriminate or (1a) for discriminating a state of electric discharge generated between the electrodes and an impression voltage selecting means (1b) for inverting the polarity of the electric discharge inductive pulse voltage from the previous electric discharge inductive pulse voltage when an electric discharge state between the electrodes is discriminated to be abnormal (Y1) or open (Y3) and for making the polarity of the electric discharge inductive pulse voltage to be the same as the polarity of the previous electric discharge inductive pulse voltage when the electric discharge state between the electrodes is discriminated to be normal (Y2).
摘要翻译：用于加工线电放电机的电力单元包括放电状态鉴别或（1a），用于识别电极之间产生的放电状态和压电电压选择装置（1b），用于使电极的极性反转当电极之间的放电状态被判定为异常（Y 1）或断开（Y 3）并且使放电感应脉冲电压的极性为放电感应脉冲电压时，来自先前放电感应脉冲电压的放电感应脉冲电压为与电极之间的放电状态判断为正常（Y 2）时，与先前的放电感应脉冲电压的极性相同。

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