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公开(公告)号：US12128492B2
公开(公告)日：2024-10-29
申请号：US17616838
申请日：2020-06-02
发明人： Susumu Sugawara
CPC分类号： B23H11/006 , B23H7/30
摘要： This narrow-hole electric discharge machine (100), which performs electric discharge machining by relatively moving a narrow-hole electrode (28) attached to a main spindle (114) and a workpiece (130) attached to a table (118), comprises: a positioning guide (16) which is attached to a guide arm (142) below the main spindle, through which the narrow-hole electrode is inserted such that a lower portion of the narrow-hole electrode is movable in the direction of an axis line (CL0), and which supports the narrow-hole electrode; and a power feeder (10) which is provided at a predetermined position directly above the positioning guide of the guide arm, comes into direct contact with the narrow-hole electrode movable in the axis line direction and feeds power to the narrow-hole electrode, wherein the distance from a power feed position to the tip of the positioning guide is constant regardless of the length of the narrow-hole electrode.
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公开(公告)号：US11717903B2
公开(公告)日：2023-08-08
申请号：US17580819
申请日：2022-01-21
发明人： Renwei Yuan , Lei Li , Yuanyuan Guo , Peng Hu , Nouman Usmani
CPC分类号： B23H7/265 , B23H7/30 , B23H2400/10 , B23H2500/00
摘要： The present disclosure relates to an electrical discharge machining (EDM) device, and a method for machining a workpiece by the EDM device. The EDM device includes a spindle, a guide structure including a plurality of guideways, and a plurality of electrodes, the electrode coupled to the spindle via a flexible link, and slidably engaged with a respective one of the plurality of guideways.
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公开(公告)号：US20230070464A1
公开(公告)日：2023-03-09
申请号：US17800921
申请日：2020-12-09
发明人： Bo XU , Hui YU , Jianhui BAI
摘要： A follow-up swing head type large taper wire cutting device is disclosed. In the large taper wire cutting device, swing heads on upper and lower mechanical arms are adjusted in a follow-up way by swing head rotating mechanisms in coordination with a cutting taper, universal wire guide wheels are used to cooperate with the corresponding upper and lower swing heads, and tensioning mechanisms between the universal wire guide wheels and directional wire guide wheels are used for transition to ensure the smooth transition of an electrode wire, so that the electrode wire is effectively prevented from sliding off during large taper cutting, and the control of the follow-up deflection position of the electrode wire is also very accurate.
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公开(公告)号：US10974336B2
公开(公告)日：2021-04-13
申请号：US15136023
申请日：2016-04-22
发明人： Renwei Yuan , Dong Liu , Lei Li
摘要： A method for profile machining comprises: providing an electrode having an electrode axis, a free axial end with an end face, and a peripheral surface other than the end face; energizing the electrode and a workpiece having a thickness, with one of the workpiece and the electrode as an anode and the other as a cathode; and machining the workpiece with the peripheral surface of the electrode, during which the peripheral surface and the electrode axis of the electrode are across the workpiece in a thickness direction thereof. In addition, an embodiment of present invention relates to a component machined by the method.
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公开(公告)号：US10189102B2
公开(公告)日：2019-01-29
申请号：US15749282
申请日：2015-10-20
摘要： An electric discharge machine includes an electrode, a shaft-feed driving unit that, a voltage/current applying unit, a shaft-feed control unit that causes the shaft-feed driving unit to perform a jump operation, and a machining-condition setting and changing unit that sets a voltage applied between the electrode and a workpiece and an electric current flowing between the electrode and the workpiece. The machining-condition setting and changing unit determines whether the electric discharge between the electrode and the workpiece stabilizes after the jump operation ends and, in at least a part of a period before determining that the electric discharge stabilizes, sets at least one of the voltage and the electric current to a condition in which electric discharge more easily occurs than in the condition in applying the electric discharge machining.
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公开(公告)号：US20180221977A1
公开(公告)日：2018-08-09
申请号：US15749282
申请日：2015-10-20
摘要： An electric discharge machine includes an electrode, a shaft-feed driving unit that, a voltage/current applying unit, a shaft-feed control unit that causes the shaft-feed driving unit to perform a jump operation, and a machining-condition setting and changing unit that sets a voltage applied between the electrode and a workpiece and an electric current flowing between the electrode and the workpiece. The machining-condition setting and changing unit determines whether the electric discharge between the electrode and the workpiece stabilizes after the jump operation ends and, in at least a part of a period before determining that the electric discharge stabilizes, sets at least one of the voltage and the electric current to a condition in which electric discharge more easily occurs than in the condition in applying the electric discharge machining.
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公开(公告)号：US09822464B2
公开(公告)日：2017-11-21
申请号：US14517293
申请日：2014-10-17
发明人： Shao-Han Chang
摘要： An electrochemical machining apparatus includes a fastening bracket, a first drive member positioned on the fastening bracket, a connecting member, a first electrode connected to the connecting member, a second driving member, a second electrode connected to the second driving member, a moving assembly positioned on the fastening bracket, an electrolytic cell positioned on moving assembly, a pump, and a vacuum pump. The first electrode defines a plurality of liquid collecting grooves spaced from each other. Each liquid collecting grooves defines a plurality of second through holes. At least one liquid collecting groove is connected to the pump, and the other liquid collecting grooves are connected to the vacuum pump. The portion of the second electrode can be inserted into and depart from the second through holes.
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公开(公告)号：US09802263B2
公开(公告)日：2017-10-31
申请号：US14635400
申请日：2015-03-02
申请人： DENSO CORPORATION
发明人： Kouichirou Yasuda , Yasuji Inobe , Akira Itoh , Nobuhiko Nagai , Tetsuji Yamaguchi , Hiroyuki Ootani
摘要： In an electrical discharge machine that applies a voltage between an electrode and a workpiece to generate electrical discharge, an electrode holder holds the electrode. An ultrasonic motor has a fingertip that comes into contact with electrode holder, and moves electrode holder in a driving direction by moving the fingertip in an annular manner at an ultrasonic-range frequency. A roller bearing guides the movement of the electrode holder in the driving direction. A control circuit controls a position of the electrode in the driving direction by driving the ultrasonic motor, and moves the electrode holder based on an abnormality occurring in resistance against the movement of the electrode holder in the driving direction such that the electrode holder is moved by a movement distance equivalent to when the largest roller element among a plurality of roller elements of the roller bearing rolls and rotates once without sliding or longer.
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公开(公告)号：US09254529B2
公开(公告)日：2016-02-09
申请号：US14005826
申请日：2012-03-23
申请人： Yuzo Dohi , Hirotoshi Inoue
发明人： Yuzo Dohi , Hirotoshi Inoue
摘要： A wire electric discharge machining apparatus is provided to equip with an automatic wire threader more reliably threading a wire electrode through an start hole. The wire electric discharge machining apparatus includes an automatic wire threader including: a feed roller disposed higher than the start hole and feeding a wire electrode toward the start hole; and a vertical drive device disposed between the feed roller and the start hole, and supplying compressed air in the upward and downward directions to vertically move the wire electrode slightly. The vertical drive device includes wire guides having guide holes through which the wire electrode is passed. The wire guides are constructed so that upward movement by the compressed air is possible.
摘要翻译： 一种电线放电加工装置，其装配有一个更可靠地将线电极穿过启动孔的自动穿线机。 线材放电加工装置包括：自动线穿线器，包括：馈送辊，其设置在比起始孔高的位置，并将线电极朝向起始孔供电; 以及设置在进给辊和起动孔之间的垂直驱动装置，并且向上和向下方向供应压缩空气以稍微垂直移动线电极。 垂直驱动装置包括具有引导孔的线引导件，线电极通过该引导孔。 导线器的构造使得可以通过压缩空气向上运动。
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公开(公告)号：US07211178B2
公开(公告)日：2007-05-01
申请号：US10920364
申请日：2004-08-18
申请人： Karl Schreiber
发明人： Karl Schreiber
CPC分类号： B23H3/04 , B23H3/00 , B23H9/00 , B23H9/006 , F01D5/282 , F01D5/30 , F04D29/023 , F04D29/34 , F05D2230/80 , Y02T50/672
摘要： On a fixture for electro-chemical machining for the production of long, curved cavities (11) in a component (12), the working electrode (3) of the electro-chemical machining tool (1) is connected to a guide body (1a) which moveably rests against the inner walls of the respective cavity by means of power-actuated guide elements (2), with the guide body being connected to a flexurally soft and torsionally stiff guide linkage (5) coupled to a feed and rotary drive. Control of the movement of the guide body is accomplished in dependence of at least one wall thickness measured with a measuring device (13, 14) during feed movement.
摘要翻译： 在用于在部件（12）中生产长弯曲腔（11）的电化学加工用夹具上，电化学加工工具（1）的工作电极（3）连接到引导体（1） a）通过动力驱动的导向元件（2）可移动地靠在相应空腔的内壁上，导向体连接到弯曲柔性且扭转刚性的导向联动装置（5），该导向连杆（5）连接到进给和旋转驱动 。 根据在进给运动期间用测量装置（13,14）测量的至少一个壁厚来实现对引导体运动的控制。
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