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11. 发明申请

US20050098541A1 Method and system for electric discharge machining insulating material or high resistance material 失效
公开(公告)号：US20050098541A1
公开(公告)日：2005-05-12
申请号：US10472384
申请日：2002-01-24
申请人： Naotake Mohri , Yasushi Fukuzawa , Akihiro Goto , Takuji Magara
发明人： Naotake Mohri , Yasushi Fukuzawa , Akihiro Goto , Takuji Magara
IPC分类号： B23H1/02 , B23H9/00 , B23K9/00
CPC分类号： B23H1/022 , B23H1/02 , B23H9/00
摘要： An electric discharge machine for machining a workpiece (2a) made of insulating material or other materials comprises: a first comparison member (17) for comparing voltage (V) between the electrodes of the electrode (1) and the workpiece (2a) with the first reference voltage (V1) which is set at a value close to electric power source voltage (V0) not higher than electric power source voltage (V0); a second comparison member (18) for comparing voltage (V) between the electrodes with the second reference voltage (V2) which is set at a value lower than the first reference voltage (V1); and a control member (19) for setting a short electric discharge pulse width (TP1) in the case where voltage (V) between the electrodes is lower than the second reference voltage (V2) according to the result of comparison conducted by the second comparison member (18) at a point of time when a predetermined period of time (T0) has passed from the time when voltage (V) between the electrodes becomes lower than the first reference voltage (V1) according to the result of comparison conducted by the first comparison member (17), and for setting a long electric discharge pulse width (TP2) in the case where the voltage between the electrodes is higher than the second reference voltage (V2). This electric discharge machine is capable of stabilizing the machining of the workpiece (2a) made of insulating material or other materials and also capable of enhancing quality of a machined face.

12. 发明申请

US20050072759A1 Working liquid ejector of wire electric discharge machine 失效
标题翻译：线放电机工作液体喷射器
公开(公告)号：US20050072759A1
公开(公告)日：2005-04-07
申请号：US10499946
申请日：2002-03-28
申请人： Hisashi Yamada , Ryogo Koba , Takuji Magara , Masao Akiyoshi
发明人： Hisashi Yamada , Ryogo Koba , Takuji Magara , Masao Akiyoshi
IPC分类号： B23H7/02 , B23H7/10
CPC分类号： B23H7/101
摘要： A machining-fluid ejection device for a wire electric discharge machining apparatus includes a nozzle for ejecting machining-fluid into an inter-electrode gap between a workpiece (W) and a wire electrode (E), a casing (16) fixed to a machining head (15) disposed above or below the workpiece (W), a coupling member (18) for coupling the casing (16) and a nozzle (17), having a predetermined elastic coefficient, and deforming according to the machining-fluid pressure; wherein an assemblage of the coupling member (18) and the nozzle (17) has hollow portions, formed with an inlet side internal diameter (D2) and an outlet side internal diameter (D1) on a machining-fluid inlet side and outlet side respectively, whose sectional areas do not change, and a hollow portion, formed with a minimum internal diameter (D0) between the machining-fluid inlet side and the outlet side, whose sectional area does not change. Machining productivity may-be raised for nozzle contact machining and nozzle separation machining.
摘要翻译：一种用于线材放电加工设备的机加工液喷射装置，包括：用于将加工流体喷射到工件（W）和线电极（E）之间的电极间间隙中的喷嘴;固定到加工位于工件（W）上方或下方的头部（15），用于联接壳体（16）的联接构件（18）和具有预定弹性系数的喷嘴（17），并根据加工液压力变形; 其中所述联接构件（18）和所述喷嘴（17）的组合具有中空部分，其分别在机械流体入口侧和出口侧形成有入口侧内径（D2）和出口侧内径（D1），其截面积不变化的中空部分，在切削面积不变的加工液入口侧和出口侧之间形成有最小内径（D0）的中空部。喷嘴接触加工和喷嘴分离加工可能会增加加工生产率。

13. 发明授权

US06787727B2 Automatic wire electrode feeder for wire electric discharge machining devices 有权
标题翻译：自动线电极给料机用于线材放电加工装置
公开(公告)号：US06787727B2
公开(公告)日：2004-09-07
申请号：US10203270
申请日：2002-08-08
申请人： Hisashi Yamada , Takuji Magara , Yutaka Terada
发明人： Hisashi Yamada , Takuji Magara , Yutaka Terada
IPC分类号： B23H710
CPC分类号： B23H7/102
摘要： An automatic wire feeder of a wire electric discharge machine includes an optical sensor for detecting positional information of a wire electrode in an inserting passage between a feed roller for feeding a wire electrode and an upper wire guide; and a control unit for discriminating a state of vibration or deflection of the wire electrode according to the positional information detected by the optical sensor and also for controlling a feeding and rewinding motion of the feed roller according to a quantity of deflection of the wire electrode. Due to the foregoing, buckling caused by an inserting load in the process of automatic wire connection can be positively detected, and the reliability can be enhanced and further the repetition of connecting the wire again can be reduced.
摘要翻译：线放电机的自动送丝机包括：光传感器，用于检测用于馈送线电极的馈送辊和上导线器之间的插入通道中的线电极的位置信息; 以及控制单元，用于根据由光学传感器检测到的位置信息来鉴别线电极的振动或偏转状态，并且还用于根据线电极的偏转量来控制进给辊的进给和重绕运动。由于上述原因，可以可靠地检测出自动连线过程中的插入负荷引起的翘曲，可靠性得到提高，并且可以进一步减少连线的重复。

14. 发明授权

US6147500A EDM with jump motion detecting reactive force 有权
标题翻译： EDM具有跳跃运动检测反作用力
公开(公告)号：US6147500A
公开(公告)日：2000-11-14
申请号：US396456
申请日：1999-09-15
申请人： Yoshihito Imai , Hidetaka Miyake , Takuji Magara , Akihiro Goto
发明人： Yoshihito Imai , Hidetaka Miyake , Takuji Magara , Akihiro Goto
IPC分类号： B23H1/02 , B23H7/18 , G01N27/60
CPC分类号： B23H7/18
摘要： An electric discharge machine for machining a workpiece by an electric discharge by supplying a machining fluid to a gap between an electrode and the workpiece and supplying pulses to the workpiece while providing the electrode with a jump motion having a periodic motion of the electrode relative to the workpiece; wherein the electric discharge machine detects a state quantity caused in a main body of the electric discharge machine by a reactive force produced by a machining operation in the gap between the electrode and the workpiece and changes machining conditions of the workpiece in accordance with a detected value of the state quantity.
摘要翻译：一种放电机，用于通过将电机和工件之间的间隙供给加工流体并向工件供给脉冲，同时为电极提供具有电极相对于电极的周期运动的跳跃运动，通过放电来加工工件工件; 其特征在于，所述放电加工机通过在所述电极和所述工件之间的间隙中的加工操作产生的反作用力来检测在所述放电加工机的主体中产生的状态量，并根据检测值改变所述工件的加工条件的国家数量。

15. 发明授权

US6043447A Discharge machining apparatus 失效
标题翻译：放电加工装置
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
IPC分类号： B23H1/02 , B23H7/18 , B23H7/16
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。

16. 发明授权

US5973498A EDM with jump motion detecting reactive force 失效
标题翻译： EDM具有跳跃运动检测反作用力
公开(公告)号：US5973498A
公开(公告)日：1999-10-26
申请号：US568682
申请日：1995-12-07
申请人： Yoshihito Imai , Hidetaka Miyake , Takuji Magara , Akihiro Goto
发明人： Yoshihito Imai , Hidetaka Miyake , Takuji Magara , Akihiro Goto
IPC分类号： B23H1/02 , B23H7/18 , G01N27/60
CPC分类号： B23H7/18
摘要： An electric discharge machine for machining a workpiece by an electric discharge by supplying a machining fluid to a gap between an electrode and the workpiece and supplying pulses to the workpiece while providing the electrode with a jump motion, said jump motion being a periodic motion of the electrode relative to the workpiece; wherein said electric discharge machine detects a state quantity caused in a main body of the electric discharge machine by a reactive force produced by a machining operation in the gap between the electrode and the workpiece and changes machining conditions of the workpiece in accordance with a detected value of the state quantity.
摘要翻译：一种放电加工机，其特征在于，通过向电极和工件之间的间隙供给加工液，通过放电对工件进行加工，同时向所述工件供给脉冲，同时向所述电极提供跳动，所述跳跃运动为电极相对于工件; 其特征在于，所述放电加工机由电极和工件之间的间隙中的加工操作产生的反作用力来检测放电加工机主体的状态量，并根据检测值改变工件的加工条件的国家数量。

17. 发明授权

US5847352A Method and apparatus for electrical discharge machining 失效
标题翻译：放电加工方法和装置
公开(公告)号：US5847352A
公开(公告)日：1998-12-08
申请号：US853483
申请日：1997-05-09
申请人： Takashi Yuzawa , Takuji Magara
发明人： Takashi Yuzawa , Takuji Magara
IPC分类号： B23H7/20 , B23H7/26 , B23H7/30 , B23H1/00 , B23H7/18
CPC分类号： B23H7/30
摘要： An electric discharge machining apparatus and method are provided first having a data storage for storing initial machining conditions such as a two-dimensional outline path for a machined form, dimensions of the machined form, a feed rate in the axial direction of an electrode for a given movement of the tool electrode in the horizontal direction, and an interval period of inline measurement. In addition, the apparatus measures a machining depth at each interval period of inline measurement. The apparatus also computes machining parameters such as a machining depth for each machining pass, a number of remaining passes of machining which are to be executed, and also increments an outline offset according to the measured machining depth. An electrode position control then provides positional control of a tool electrode according to the computed machining parameters.
摘要翻译：首先提供一种放电加工装置和方法，其具有用于存储初始加工条件的数据存储装置，例如用于机加工形状的二维轮廓路径，加工形状的尺寸，用于给定工具电极在水平方向的移动，以及间隔期的在线测量。此外，该装置测量在线测量的每个间隔周期的加工深度。该装置还计算加工参数，例如每个加工道次的加工深度，要执行的剩余加工数，并根据测量的加工深度增加轮廓偏移。然后，电极位置控制根据所计算的加工参数提供工具电极的位置控制。

18. 发明授权

US5804789A Surface treating method and apparatus by electric discharge machining 失效
标题翻译：表面处理方法和放电加工装置
公开(公告)号：US5804789A
公开(公告)日：1998-09-08
申请号：US796138
申请日：1997-02-06
申请人： Nagao Saito , Naotake Mouri , Hidetaka Miyake , Yoshihito Imai , Takuji Magara , Akihiro Goto
发明人： Nagao Saito , Naotake Mouri , Hidetaka Miyake , Yoshihito Imai , Takuji Magara , Akihiro Goto
IPC分类号： B23H9/00 , C23C26/00 , B23H1/00
CPC分类号： C23C26/00
摘要： A surface treating apparatus rotates a rotating tool and moves a surface treating electrode relative to the tool via a rotating shaft driver and a Z-axis driver. A power source applies voltage to generate an electric discharge between the tool and the electrode, thereby forming a reforming layer on a peripheral flank and a rake face of the tool.
摘要翻译：表面处理装置旋转旋转工具并经由旋转轴驱动器和Z轴驱动器相对于工具移动表面处理电极。电源施加电压以在工具和电极之间产生放电，从而在工具的外周侧面和前刀面上形成重整层。

19. 发明授权

US5651901A Method and apparatus for surface treatment by electrical discharge machining 失效
标题翻译：放电加工表面处理方法及装置
公开(公告)号：US5651901A
公开(公告)日：1997-07-29
申请号：US323018
申请日：1994-10-14
申请人： Naotake Mohri , Nagao Saito , Takuji Magara , Toshiro Ohizumi
发明人： Naotake Mohri , Nagao Saito , Takuji Magara , Toshiro Ohizumi
IPC分类号： B23H9/00 , B23P23/04 , C23C26/00 , C23C30/00 , B23H1/00
CPC分类号： C23C30/005 , C23C26/00
摘要： A surface treatment method and apparatus therefor for providing wear and corrosion resistance, which includes relatively rotating a modified metallic member to be surface modified and a block, which may be metal only or may include a modifying material (e.g., ceramic or W-C/Co), and generating electrical discharge between the block and the modified metallic member to form a modification layer on the surface of said modified metallic member. If the modifying material is not in the block, it can be supplied via a dielectric bath or spray at the discharge interface. In this manner, the cutting edges of a cutting tool with a complicated shape can be surface modified easily to carry out tool surface treatment which increases a cutting tool life greatly. Cutting and surface treatment can be performed alternately as determined by a controller.
摘要翻译：一种用于提供耐磨损和耐腐蚀性的表面处理方法及其设备，其包括相对旋转要被表面改性的改性金属构件和块，其可以仅是金属或可以包括改性材料（例如陶瓷或WC / Co）并且在所述块和所述改性金属构件之间产生放电，以在所述改性金属构件的表面上形成改性层。如果改性材料不在块中，则可以通过介电浴或喷射在排放界面处供应。以这种方式，具有复杂形状的切削工具的切削刃可以容易地进行表面改性以进行刀具表面处理，从而大大提高了切削刀具的使用寿命。切割和表面处理可以交替地执行，由控制器确定。

20. 发明授权

US5315088A Electric discharge machining apparatus with switch connection between workpiece and mount 失效
标题翻译：放电加工设备，具有工件和安装座之间的开关连接
公开(公告)号：US5315088A
公开(公告)日：1994-05-24
申请号：US983714
申请日：1992-12-01
申请人： Hisashi Yamada , Takuji Magara
发明人： Hisashi Yamada , Takuji Magara
IPC分类号： B23H7/00 , B23H1/02 , B23H7/04 , B23H7/10 , B23H7/14 , B23H7/26 , B23H11/00
CPC分类号： B23H7/04 , B23H1/02 , B23H11/006
摘要： In an electric discharge machining apparatus, a workpiece electrically connected to a body of the machine and a jig on which the workpiece rests are electrically isolated from each other. The body and the workpiece are selectively switched in open-circuit/short-circuit by a switch. Switching can be made on the stool or the workpiece. Further, the switch and the workpiece and the jig are connected to each other by a coaxial cable.
摘要翻译：在放电加工装置中，电连接到机体的工件和工件所在的夹具彼此电隔离。主体和工件通过开关选择性地切换开路/短路。可以在凳子或工件上进行切换。此外，开关和工件和夹具通过同轴电缆彼此连接。

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