• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    For a main cutting, a high-current, short-pulse discharge circuit (which includes power source Vh, resistor Rh, transistor Qh, capacitor Ch and diode Dh) causes high-current, short-pulse discharges between a wire WR and a workpiece WK. For second cutting, a low-current, pulse discharge circuit (which includes power source Vl, resistor Rl, transistor Ql, capacitor Cl and diode Dl) causes low-current, pulse discharges between the wire WR and the workpiece WK. Control circuitry including gates Gh and Gl, oscillator OSC and numerical controller NC controls the two discharge circuits so that predetermined sections of the workpiece are each subjected to a main cutting then at least one second cutting section by section, so that the sections are machined one after another. …<??>The control circuitry controls the feed speed of the wire WR relative to the workpiece WK so that feed speed for a second cutting is greater then feed speed for a main cutting.
    公开号:SU1268096A3
    申请号:SU803008196
    申请日:1980-11-06
    公开日:1986-10-30
    发明作者:Обара Харуки
    申请人:Фудзицу Фанук Лимитед (Фирма)；
    IPC主号:
    专利说明:

    N9
    Od
    oo o so
    Od
    The invention relates to electrophysical and electrochemical processing methods, namely to electroerosive cutting with a wire electrode tool.
    The aim of the invention is to increase the processing efficiency by dividing the contour into elementary areas and carrying out a roughing passage at each section, quickly reversing the outlet to the starting point of the section along the traversed path, displacing the electrode tool by the amount of equidistant and making sheet pass
     FIG. Figure 1 shows the trajectory of the movement of the wire electrotool in an elementary section of the contour; in fig. 2 is a block diagram of a device used to implement the method.
    The method is carried out as follows.
    First, the digital control unit 1 outputs a signal to one from the inputs of the first logic element I 2, controlling the operation of the pulse generator, which provides the roughing mode and consists of the key element 3j, resistor 4, capacitance 5, and power supply 6. The generator is connected to the electrode-tool 7 and the workpiece 8 through the diode 9. The second input of the logic element 2 receives pulses from the master oscillator 10. From the output of the logic element 2, the pulses arrive at the input of the key element 3, ensuring its opening and closing. Simultaneously from the digital control unit 1, pulses are received with motors 11 and 12, which ensure the displacement of the component 8 relative to the wire electrotool 7. At the same time, EDM cutting is carried out in the black star mode. The wire electrode tool 7 moves along the path AB (Fig. 1). When the wire electrode tool 7 reaches point B, the digital control unit 1 pulses, causing rapid reversing of the wire electrode tool 7 along the trajectory VA with a speed several tens of times more processing speed.
    Then, the digital control unit 1 moves the wire electrode-tool 7 to point C, displacing it by the amount of equidistant gates. At the moment when the wire electrode tool 7 reaches point C, the digital control unit 1 outputs a signal to one of the inputs of the second logic element AND 13 controlling the operation of the pulse generator, providing finishing modes and consisting of a key element 14, a resistor 15, a capacitor 16, a power source 17. The generator is also connected to the wire electrode-tool 7 and the workpiece 8 through the diode 18. The second input of the second logic element 13 receives pulses from the master oscillator 10. From the output of the logic element 2, the pulses go to the input of the key element 14, ensuring its opening and closing „ Simultaneously, the digital control unit 1 receives pulses on the motors 11 and 12. At the same time, EDM cutting is carried out in the finishing mode. The wire electrode tool 7 moves along the path of the LED (Fig. 1). Further, the processing cycle is repeated in the next elementary contour section. Since the reversing retraction is carried out at high speed and there is no need to break the wire electrode tool and refill it in a new area, the processing efficiency is improved.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    The method of electroerosive cutting with a wire electrode tool, carried out in several passes, in which a groove is cut out in the first draft pass, and repeated. finishing passes are performed by moving the wire electrode tool in the specified slot along the path, equidistant path of the electrode tool in the first pass, while the current flowing through the interelectrode gap on the finish pass is reduced compared to its value on the first draft pass, differing in that, in order to improve the processing efficiency, the contour being processed is divided into elementary areas and reversible elimination is carried out at each elementary area after the roughing passage a tool electrode with a speed greater than the working one at the starting point of the elementary segment, and the tool-pickup trajectory of the tool-electrode coincides with that of the electrode
    1268096
    the tool on the roughing pass, then the electrode-tool is shifted by the amount of equidistants and carry out the finishing pass of this elementary section, after which the process is repeated by the descending elementary section.
    I l b
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1268096A3|1986-10-30|Method for electric discharge cutting with wire tool-electrode
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    US3655937A|1972-04-11|Arrangement of at least two non-storage pulse generators for electro-erosion machining
    US3671705A|1972-06-20|Method of electroerosion machining of parts and device for effecting same
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    GB2042397A|1980-09-24|Storage-capacitor type electrical discharge machining
    US3739136A|1973-06-12|Process and apparatus for machining by electro erosion
    US4357516A|1982-11-02|EDM Method and apparatus utilizing successive trains of elementary pulses with controlled pulse-off periods
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    SU1351523A3|1987-11-07|Method and device for controlling tool feed on electrical-discharge machine with capacitance-type pulse generator
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    SU1301594A1|1987-04-07|Method of extremum control of electro-erosion process
    JP2801280B2|1998-09-21|Wire cut EDM power supply
    SU751548A1|1980-07-30|Program-controlled electroerosion machine
    JPS56107842A|1981-08-27|Method and apparatus for controlling working clearance
    US4056702A|1977-11-01|Electrical discharge machining power circuit
    SU1321536A1|1987-07-07|Method of spark-erosion cutting off with wire tool electrode
    同族专利:
    公开号 | 公开日
    JPS5669034A|1981-06-10|
    JPS6014655B2|1985-04-15|
    EP0028926B1|1985-05-08|
    EP0028926A1|1981-05-20|
    DE3070626D1|1985-06-13|
    US4649252A|1987-03-10|
    引用文献:
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    CH469532A|1967-07-06|1969-03-15|Exnii Metallorezh Stankov|Method and device for electrical discharge machining of metal|
    US3578937A|1969-08-21|1971-05-18|Elox Inc|Electrical discharge machining power supply circuit of the superimposed voltage type|
    US3809848A|1972-12-14|1974-05-07|Colt Ind Operating Corp|Digitally controlled power supply for electrical discharge machining apparatus|
    US4104502A|1974-11-25|1978-08-01|A.G. Fur Industrielle Elektronik Agie|Electro-erosion machine tool with compensation for operating forces, and method of operation|
    CH591919A5|1974-11-25|1977-10-14|Agie Ag Ind Elektronik|
    CH613142A5|1977-02-23|1979-09-14|Charmilles Sa Ateliers|
    CH620851A5|1978-04-10|1980-12-31|Charmilles Sa Ateliers|
    JPS55120934A|1979-03-13|1980-09-17|Mitsubishi Electric Corp|Wire cut-type electric current machining|
    US4324970A|1979-06-26|1982-04-13|Mitsubushiki Denki Kabushiki Kaisha|Wire cut method of shaping workpiece by electric discharge|
    JPS6026650B2|1979-08-30|1985-06-25|Fanuc Ltd|
    JPH114621A|1997-06-16|1999-01-12|Yanmar Agricult Equip Co Ltd|Grain transfer unit|JPH0134733B2|1980-02-05|1989-07-20|Inoue Japax Res|
    CH646894A5|1982-04-22|1984-12-28|Charmilles Sa Ateliers|METHOD AND DEVICE FOR CUTTING BY EROSIVE DISCHARGES.|
    JPS5993237A|1982-11-19|1984-05-29|Mitsubishi Electric Corp|Wire electric discharge machining device|
    JPS61103725A|1984-10-25|1986-05-22|Inoue Japax Res Inc|Wire cut electric discharge machining method|
    WO1986004280A1|1985-01-17|1986-07-31|Inoue Japax Research Incorporated|Wire-cutting electric discharge processing apparatus and method of controlling same|
    WO1986004279A1|1985-01-18|1986-07-31|Inoue Japax Research Incorporated|Wire-cutting electric discharge processing method and apparatus|
    KR910008244B1|1986-10-24|1991-10-12|미쓰비시전기 주식회사|Wire cut electrical discharge machine|
    KR920006654B1|1986-10-24|1992-08-14|미쓰비시덴기 가부시기가이샤|Wire electrode type electric discharge machining apparatus|
    JPS63267121A|1987-04-22|1988-11-04|Amada Co Ltd|Wire-cut electric discharge machining device|
    JPH01240219A|1988-03-22|1989-09-25|Mitsubishi Electric Corp|Method for wire electric discharge machining|
    JPH0271928A|1988-09-01|1990-03-12|Mitsubishi Electric Corp|Enumeration of correction magnitude of wire diameter in wire electric discharge machining|
    US5237145A|1989-12-29|1993-08-17|Mitsubishi Denki K.K.|Wire cut electric discharge machining method|
    US5583409A|1992-08-31|1996-12-10|Fanuc Ltd|Numerical control apparatus and method for controlling a machine|
    DE19516990C2|1995-05-09|1998-09-17|Agie Ag Ind Elektronik|Process for EDM cutting by means of a wire-shaped electrode and EDM machine designed for this|
    US5899958A|1995-09-11|1999-05-04|Halliburton Energy Services, Inc.|Logging while drilling borehole imaging and dipmeter device|
    US6333092B1|1999-02-25|2001-12-25|The United States Of America As Represented By The Secretary Of The Navy|Fractal interfacial enhancement of composite delamination resistance|
    CN100345651C|2002-07-12|2007-10-31|三菱电机株式会社|Discharge-processing power source device|
    CN102026766B|2008-07-03|2012-12-05|三菱电机株式会社|Wire discharge machining equipment and wire discharge machining method|
    EP2322305A1|2009-11-12|2011-05-18|Siemens Aktiengesellschaft|Electrical discharge cutting with thick wire electrode|
    JP5937564B2|2013-11-07|2016-06-22|ファナック株式会社|Wire electrical discharge machine with machining condition selection function|
    CN109352103B|2018-11-14|2021-07-30|南京航空航天大学无锡研究院|Large-current multi-time cutting method for high-speed reciprocating wire-moving electrospark wire-electrode cutting|
    CN112338304A|2020-10-14|2021-02-09|广东坚美铝型材厂（集团）有限公司|Die and process for machining die cavity through linear cutting|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP54145237A|JPS6014655B2|1979-11-09|1979-11-09|
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