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1. 发明授权

US06900407B2 Electric discharge machine with reactive force compensated by jump locus adjustment 有权
标题翻译：具有反作用力的放电机通过跳跃轨迹调整补偿
公开(公告)号：US06900407B2
公开(公告)日：2005-05-31
申请号：US10250484
申请日：2001-01-09
申请人： Naotake Mohri , Nagao Saitoh , Mitsuaki Akune , Hajime Ogawa , Takayuki Nakagawa , Yoshihito Imai
发明人： Naotake Mohri , Nagao Saitoh , Mitsuaki Akune , Hajime Ogawa , Takayuki Nakagawa , Yoshihito Imai
IPC分类号： B23H1/02 , B23H7/18 , B23H7/20
CPC分类号： B23H1/02 , B23H7/18 , B23H7/20
摘要： In an electric discharge machine, wherein electric power is supplied between an electrode and a workpiece to machine the workpiece, a jumping motion is performed to temporarily increase a distance between the electrode and the workpiece. The electric discharge machine includes a detector for detecting a machining reaction force; a setting unit for setting a specified value of the machining reaction force; a comparator for comparing a detected value of the machining reaction force with a specified value of the machining reaction force; and a changing unit for changing a locus of the jumping motion so that the machining reaction force can be reduced if the comparator finds that the detected value of the machining reaction force is greater than the specified value of the machining reaction force.
摘要翻译：在放电机中，在电极和工件之间供电以加工工件，执行跳跃运动以临时增加电极和工件之间的距离。放电机包括检测加工反作用力的检测器; 用于设定加工反作用力的规定值的设定单元; 用于将加工反作用力的检测值与加工反作用力的规定值进行比较的比较器; 以及改变单元，用于改变跳跃运动的轨迹，使得如果比较器发现加工反作用力的检测值大于加工反作用力的规定值，则可以减小加工反作用力。

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

US08664559B2 Electrical discharge machine 有权
标题翻译：放电机
公开(公告)号：US08664559B2
公开(公告)日：2014-03-04
申请号：US11816830
申请日：2005-02-28
申请人： Hidetaka Miyake , Takayuki Nakagawa , Yoshihito Imai
发明人： Hidetaka Miyake , Takayuki Nakagawa , Yoshihito Imai
IPC分类号： B23H7/26
CPC分类号： B23H9/14 , B23H7/265 , B23H2400/10
摘要： An electrical discharge machine feeds an electrode wire received within a guide tube to a process region of a machined article. The electrical discharge machine includes a cylindrical hollow driving shaft arranged in a vertical direction, which has a space for receiving the guide tube with the electrode wire along a vertical central axis. A head assembly includes a first holding member for holding the guide tube, and a second holding member for holding the electrode wire extending from a bottom opening of the guide tube. The head assembly is detachably coupled with a bottom portion of the driving shaft. Therefore, the electrode wire can be replaced by replacing the head assembly.
摘要翻译：放电机器将接收在引导管内的电极丝馈送到加工制品的加工区域。放电机包括沿垂直方向布置的圆柱形中空驱动轴，其具有用于沿垂直中心轴线接收具有电极线的引导管的空间。头组件包括用于保持引导管的第一保持构件和用于保持从引导管的底部开口延伸的电极线的第二保持构件。头部组件与驱动轴的底部可拆卸地联接。因此，可以通过更换头部组件来代替电极线。

4. 发明授权

US06505091B1 Method and apparatus for electrodischarge machining 有权
标题翻译：放电加工方法和装置
公开(公告)号：US06505091B1
公开(公告)日：2003-01-07
申请号：US09462687
申请日：2000-03-21
申请人： Yoshihito Imai , Takayuki Nakagawa , Takashi Yuzawa
发明人： Yoshihito Imai , Takayuki Nakagawa , Takashi Yuzawa
IPC分类号： G06F1900
CPC分类号： B23H7/18 , B23H7/16 , B23H7/20 , B23H2400/10
摘要： A detected value indicating a machining state is filtered and a machining gap between an electrode and a workpiece is adjusted by using a control variable obtained through the filtering. Therefore, machining speed can be improved by maintaining a stable machining state through suppression of a disturbance in a gap distance control system due to eccentricity of an electrode, due to fluctuations in electric characteristics at feeding brush sections, and due to mechanical resonance of the electrode driving system.
摘要翻译：通过使用通过滤波获得的控制变量来过滤表示加工状态的检测值，并且调整电极和工件之间的加工间隙。因此，通过由于电极的偏心引起的间隙距离控制系统的干扰，由于馈电刷部分的电特性的波动以及由于电极的机械共振而保持了稳定的加工状态，因此可以提高加工速度驾驶系统

5. 发明申请

US20070102402A1 Electric discharge machining apparatus 失效
标题翻译：放电加工机
公开(公告)号：US20070102402A1
公开(公告)日：2007-05-10
申请号：US10579831
申请日：2004-01-23
申请人： Hidetaka Miyake , Takayuki Nakagawa , Yoshihito Imai
发明人： Hidetaka Miyake , Takayuki Nakagawa , Yoshihito Imai
IPC分类号： B23H1/04 , B23H7/26
CPC分类号： B23H7/36 , B23H1/10 , B23H7/265 , B23H9/14 , B23H2400/10
摘要： An electric discharge machining apparatus includes: a guide electrode (7) that is shaped like a hollow bar and receives a small-diameter wire electrode (8) for electric discharge machining in such a way that the small-diameter electrode can freely slide and; guide electrode holding means (9, 19, 20) that holds this guide electrode (7) at a specified position; pressurized fluid supply means (10, 11) that supplies pressurized fluid into the guide electrode (7) to feed out the small-diameter wire electrode (8) from inside the guide electrode (7) to an electric discharge machining side; and small-diameter wire electrode holding means (21) that automatically holds the small-diameter wire electrode (8) fed out of the guide electrode (7).
摘要翻译：放电加工装置包括：导电电极（7），其形状为中空棒，并且容纳用于放电加工的小直径线电极（8），使得小直径电极可以自由滑动; 将该引导电极（7）保持在规定位置的引导电极保持机构（9,19,20）加压流体供给装置（10,11），其将加压流体供应到所述引导电极（7）中以将所述小直径线电极（8）从所述引导电极（7）内部输出到放电加工侧; 以及自动保持从引导电极（7）送出的小直径线电极（8）的小直径线电极保持机构（21）。

6. 发明授权

US06621033B2 Electrical discharge machining apparatus 有权
标题翻译：放电加工机
公开(公告)号：US06621033B2
公开(公告)日：2003-09-16
申请号：US09773559
申请日：2001-02-02
申请人： Tatsushi Sato , Yoshihito Imai , Hidetaka Miyake , Takayuki Nakagawa
发明人： Tatsushi Sato , Yoshihito Imai , Hidetaka Miyake , Takayuki Nakagawa
IPC分类号： B23H104
CPC分类号： B23H1/06 , B23H1/04 , Y10T29/4921 , Y10T428/1216
摘要： A layered anisotropically conductive element, a resistant element, and a feed element constitute an electrode for discharge machining. The layered anisotropically conductive element includes high conductivity layers and low conductivity layers alternately laminated on each other, the high conductivity layers and the low conductivity layers being made of thin metallic plates coated with an insulating film. The layered anisotropically conductive element has an anisotropic conductivity, in which the conductivity in a direction parallel to the low conductivity layers is much higher than that in a direction perpendicular to the low conductivity layers. The resistant element is connected to one of end surfaces of the layered anisotropically conductive element perpendicular to the layers. The feed element is connected to the resistant element.
摘要翻译：层状各向异性导电元件，电阻元件和馈电元件构成用于放电加工的电极。层状各向异性导电元件包括彼此交替层叠的高导电性层和低电导率层，高导电性层和低电导率层由涂覆有绝缘膜的薄金属板制成。层状各向异性导电元件具有各向异性导电性，其中平行于低电导率层的方向上的导电率远高于垂直于低电导率层的方向上的导电率。电阻元件连接到垂直于层的层状各向异性导电元件的端面之一。馈电元件连接到电阻元件。

7. 发明授权

US06608275B1 Jump control method and apparatus for electric 有权
标题翻译：电动跳转控制方法和装置
公开(公告)号：US06608275B1
公开(公告)日：2003-08-19
申请号：US09937384
申请日：2001-09-25
申请人： Takayuki Nakagawa , Yoshihito Imai
发明人： Takayuki Nakagawa , Yoshihito Imai
IPC分类号： B23H718
CPC分类号： B23H7/18 , B23H1/02
摘要： An electric discharge machining device including an interelectrode servo control unit for controlling an interelectrode distance between an electrode and an object while applying a voltage across the electrode and the object, and a jump control unit for controlling a jump operation in which the interelectrode distance is temporarily increased at time intervals or in response to a machining state jump control unit includes a jump locus generation unit for generating a smooth command locus having a frequency component in a frequency range. The jump control unit controls the jump operation by using a smooth command locus generated by the jump locus generation unit.
摘要翻译：一种放电加工装置，包括用于在电极和物体之间施加电压的同时控制电极与物体之间的电极间距离的电极间伺服控制单元，以及跳转控制单元，用于控制电极间距离临时的跳跃操作在加工状态跳跃控制单元中增加的跳跃轨迹生成单元包括用于生成频率范围内的频率成分的平滑指令轨迹的跳跃轨迹生成单元。跳跃控制单元通过使用由跳跃轨迹生成单元生成的平滑命令轨迹来控制跳跃操作。

8. 发明授权

US07518081B2 Electric discharge machining apparatus 失效
标题翻译：放电加工机
公开(公告)号：US07518081B2
公开(公告)日：2009-04-14
申请号：US10579831
申请日：2004-01-23
申请人： Hidetaka Miyake , Takayuki Nakagawa , Yoshihito Imai
发明人： Hidetaka Miyake , Takayuki Nakagawa , Yoshihito Imai
IPC分类号： B23H1/04 , B23H7/26 , B23H9/14
CPC分类号： B23H7/36 , B23H1/10 , B23H7/265 , B23H9/14 , B23H2400/10
摘要： An electric discharge machining apparatus includes a guide electrode that is tubular and receives a small-diameter wire electrode for electric discharge machining. The small-diameter wire electrode can freely slide within the guide electrode. A guide electrode holder holds the guide electrode at a specified position. Pressurized fluid is supplied into the guide electrode to feed the small-diameter wire electrode from the guide electrode. A small-diameter wire electrode holder automatically releases and grasps the small-diameter wire electrode in response to starting and stopping of the pressurized fluid supply, respectively.
摘要翻译：放电加工装置包括：导管，其是管状的并且容纳用于放电加工的小直径线电极。小直径线电极可以在引导电极内自由滑动。引导电极保持器将引导电极保持在指定位置。加压流体被供应到引导电极中以从引导电极馈送小直径线电极。小直径线电极座分别响应于加压流体供应的启动和停止而自动释放和抓住小直径线电极。

9. 发明授权

US06881918B2 Electric discharge machining apparatus 失效
标题翻译：放电加工机
公开(公告)号：US06881918B2
公开(公告)日：2005-04-19
申请号：US10706962
申请日：2003-11-14
申请人： Hidetaka Miyake , Yoshihito Imai , Takayuki Nakagawa
发明人： Hidetaka Miyake , Yoshihito Imai , Takayuki Nakagawa
IPC分类号： B23H7/26 , B23H7/28 , B23H7/30 , B23H1/00
CPC分类号： B23H7/30 , B23H7/26 , B23H7/265 , B23H7/28
摘要： An electric discharge machining apparatus has improved responsive drivability and improved machining speed. A tool electrode has a tip end directed toward a work piece, a voltage applied between the tool electrode and the work piece generating a discharge. A drive shaft is connected with the tool electrode. An electrode driving device has magnetic bearings for moving the drive shaft in three directions, including a Z-axis direction, which is an axial direction of the drive shaft, a Y-axis direction perpendicularly crossing the Z-axis direction, and an X-axis direction perpendicularly crossing the Y-axis direction and Z-axis direction, by supplying electric current to electromagnetic portions to control magnetic attraction. A movable coupling is connected with an end of the drive shaft and is movable in the three directions. An electric motor is connected with an end of the coupling for rotating the drive shaft through the coupling.
摘要翻译：放电加工装置具有提高的响应驱动能力和改善的加工速度。工具电极具有朝向工件的尖端，施加在工具电极和工件之间的电压产生放电。驱动轴与工具电极连接。电极驱动装置具有用于使驱动轴沿三个方向移动的磁性轴承，其包括作为驱动轴的轴向的Z轴方向，与Z轴方向垂直的Y轴方向，轴向垂直于Y轴方向和Z轴方向，通过向电磁部分提供电流来控制磁吸引。可动联轴器与驱动轴的一端连接，可沿三个方向移动。电动机与联轴器的一端连接，用于通过联轴器旋转驱动轴。

10. 发明申请

US20050016965A1 ELECTRIC DISCHARGE MACHINING APPARATUS 失效
标题翻译：电动放料加工设备
公开(公告)号：US20050016965A1
公开(公告)日：2005-01-27
申请号：US10706962
申请日：2003-11-14
申请人： Hidetaka Miyake , Yoshihito Imai , Takayuki Nakagawa
发明人： Hidetaka Miyake , Yoshihito Imai , Takayuki Nakagawa
IPC分类号： B23H7/26 , B23H7/28 , B23H7/30 , B23H1/00
CPC分类号： B23H7/30 , B23H7/26 , B23H7/265 , B23H7/28
摘要： An electric discharge machining apparatus has improved responsive drivability and improved machining speed. A tool electrode has a tip end directed toward a work piece, a voltage applied between the tool electrode and the work piece generating a discharge. A drive shaft is connected with the tool electrode. An electrode driving device has magnetic bearings for moving the drive shaft in three directions including a Z-axis direction which is an axial direction of the drive shaft, a Y-axis direction perpendicularly crossing the Z-axis direction, and an X-axis direction perpendicularly crossing the Y-axis direction and Z-axis direction, by supplying electric current to electromagnetic portions to control magnetic attraction. A movable coupling is connected with an end of the drive shaft and is movable in the three directions. An electric motor is connected with an end of the coupling for rotating the drive shaft through the coupling.
摘要翻译：放电加工装置具有提高的响应驱动能力和改善的加工速度。工具电极具有朝向工件的尖端，施加在工具电极和工件之间的电压产生放电。驱动轴与工具电极连接。电极驱动装置具有用于使驱动轴沿包括作为驱动轴的轴向的Z轴方向，与Z轴方向垂直的Y轴方向，X轴方向通过向电磁部分提供电流来控制磁吸引力，垂直于Y轴方向和Z轴方向。可动联轴器与驱动轴的一端连接，可沿三个方向移动。电动机与联轴器的一端连接，用于通过联轴器旋转驱动轴。

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