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1. 发明专利

DE19710458B4 未知
公开(公告)号：DE19710458B4
公开(公告)日：2006-05-04
申请号：DE19710458
申请日：1997-03-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： YUZAWA TAKASHI , YOSHIDA MANABU , MAGARA TAKUJI
IPC分类号： B23H7/28 , B23H7/20 , B23H7/26 , B23H7/30
摘要： The electrical discharge machining device includes storage apparatus for storing the two-dimensional contour pass of the machined shape formed by the primary machining operation, the dimension of the taper of the side surface of the workpiece to be machined, the amounts of feed of the electrode in a given Z direction with respect to the movements of the electrode in the X and Y direction under respective machining conditions; information adding apparatus for adding offset information to the above-mentioned contour pass; machining operation number calculating apparatus, in accordance with a previously obtained machining depth per round about an electrode pass, for calculating the number of machining operations to be repeatedly executed around the electrode pass until a target depth is obtained; offset displacement amount calculating apparatus for calculating an offset displacement amount per round about the electrode pass in accordance with the length in the above-mentioned side surface direction of the side surface taper dimensions and the number of repeated machining operations; and, electrode position control apparatus, in accordance with an offset position added to the contour pass by the offset information adding apparatus, for controlling the offset displacement amount each time the electrode pass is machined.

2. 发明专利

DE19983777T1 未知
公开(公告)号：DE19983777T1
公开(公告)日：2002-01-31
申请号：DE19983777
申请日：1999-02-24
申请人： MITSUBISHI ELECTRIC CORP
发明人： MOHRI NAOTAKE , YOSHIDA MANABU , GOTO AKIHIRO
IPC分类号： B23H9/00 , C23C24/08 , C23C24/10 , C23C26/00 , C23C26/02

3. 发明专利

CH694246A5 Vefahren und Vorrichtung zur Funkenerosionsbearbeitung. 未知
公开(公告)号：CH694246A5
公开(公告)日：2004-10-15
申请号：CH15732001
申请日：1999-02-24
申请人： MITSUBISHI ELECTRIC CORP , MOHRI NAOTAKE
发明人： GOTO AKIHIRO , MOHRI NAOTAKE , YOSHIDA MANABU
IPC分类号： B23H9/00 , C23C24/08 , C23C24/10 , C23C26/00 , C23C26/02

4. 发明专利

CH691670A5 Dispositif et procédé d'usinage par électroérosion. 未知
公开(公告)号：CH691670A5
公开(公告)日：2001-09-14
申请号：CH56397
申请日：1997-03-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAGARA TAKUJI , YUZAWA TAKASHI , YOSHIDA MANABU
IPC分类号： B23H7/20 , B23H7/26 , B23H7/28 , B23H7/30

5. 发明专利

DE19710458A1 Electroerosive machining process 未知
公开(公告)号：DE19710458A1
公开(公告)日：1998-01-02
申请号：DE19710458
申请日：1997-03-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： YUZAWA TAKASHI , YOSHIDA MANABU , MAGARA TAKUJI
IPC分类号： B23H7/20 , B23H7/26 , B23H7/28 , B23H7/30
摘要： The apparatus for electroerosive machining of workpieces with use of numerical control includes: (a) memory unit (9) for storing the configuration of a workpiece slit produced by a primary machining operation, the taper of the sides of this slit, the axial electrode feed and a table of machining conditions; (b) unit (10a) for entering additional information on the workpiece slit; (c) unit (10b) for calculating the number of repetitions of the machining cycles to achieve a specified depth in the workpiece; (c) unit (10c) for calculating the electrode offset per machining cycle; (d) unit (10d) serving for control of the electrode position on the basis of the additional information provided by the unit (10a); (e) unit for secondary machining each of the side surfaces of the workpiece slit. The process for machining is also claimed.

6. 发明专利

JPH11114723A ELECTRO-DISCHARGE MACHINING UNIT AND METHOD THEREOF 失效
公开(公告)号：JPH11114723A
公开(公告)日：1999-04-27
申请号：JP28212297
申请日：1997-10-15
申请人： MITSUBISHI ELECTRIC CORP
发明人： WADA KOETSU , YOSHIDA MANABU
IPC分类号： B23H1/02
摘要： PROBLEM TO BE SOLVED: To perform such electro-discharge machining as being high in the plane accuracy of a machined bottom face by avoiding a deeper cavity than the steady depth at a machining start position. SOLUTION: In this electro-discharge machining unit which impresses a pulsative voltage in space between a tool electrode 1 and a workpiece W, composing the Z-axial feed to compensate a longitudinal consumable quantity of the tool electrode 1 with the X Y plane feed, and 3-dimensional control is carried out, thereby machining the desired 3-dimensional form, it is provided with a discharge detecting means 10 detecting a fact that an electric discharge is generated in space between the tool electrode 1 and the workpiece W, a storage means 11 storing an approach path making the tool electrode 1 come close to the workpiece W, a machining form path for securing a desired machining force and an electric condition of electro-discharge machining, and a control means 12 which performs the electro-discharge machining at once on the basis of the machining form path being stored in the storage means 11 if generation of the electric discharge is detected by the discharge detecting means 10 in a process where the tool electrode 1 gets nearer to the workpiece W on the basis of the approach path stored in the storage means 11.

7. 发明专利

JPH0976126A ELECTRIC DISCHARGE MACHINING METHOD AND DEVICE FOR PERFORMING IT 失效
公开(公告)号：JPH0976126A
公开(公告)日：1997-03-25
申请号：JP23814695
申请日：1995-09-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： YOSHIDA MANABU , GOTO AKIHIRO
IPC分类号： B23H7/26
摘要： PROBLEM TO BE SOLVED: To enlarge the machining limit depth by calculating the machining depth on the basis of the machining feeding amount to be calculated from the wear out rate of an electrode and the target machining depth, and controlling the reciprocating movement of the electrode on the basis of the calculated result. SOLUTION: The wear out rate of an electrode, experimentally found from the machining condition such as an electrode material, a material of an object to be machined, the target surface roughness of the object to be machined, machining liquid supplying pressure, the machining time is input into an electrode wear out rate setting unit 12. The electrode moving timing for moving an electrode 2 is input into an electrode moving distance setting unit 10. The electrode moving timing comes, the machining depth is calculated by a machining depth calculating unit 9, a signal of the machining depth is sent to an electrode control unit 13, machining is stopped, and the electrode 2 is vertically reciprocated by the approximately same distance as the machining depth at that time.

8. 发明专利

JPS54140493A VIDEO QUANTIZATION CIRCUIT 失效
公开(公告)号：JPS54140493A
公开(公告)日：1979-10-31
申请号：JP4813878
申请日：1978-04-21
申请人： MITSUBISHI ELECTRIC CORP
发明人： YOSHIDA MANABU , YAMAKOSHI MASAHIKO
IPC分类号： H03K5/01 , G01S7/292 , G01S7/32
摘要： PURPOSE:To secure an accurate measurement of the pulse duration even in case the video signal is stretched by the amplifier of the front step. CONSTITUTION:When video signal 1 stretched by the amplifier of the front step is supplied to slicer circuit 2 featuring the slice levels of n-steps, selector circuit 3 selects the output of slicer circuit 2 of the m-ordered step designated by slicer control circuit 4. The selected quantization video signal 5 is delivered to video differential circuit 6. Circuit 6 catches the rise of signal 5 and then delivers it to correcting quantization video circuit 11 in the form of rise end video signal 7. Peak level storage circuit 8 stores video signal 5 only when it exists and detects the peak level. And level comparator circuit 9 compares the peak level result with the output signal of circuit 2 and applies output 10 to circuit 11 when the output of circuit 2 is less than the fixed level.

9. 发明专利

JP2001252830A MACHINING METHOD AND DEVICE WITH WIRE ELECTRODE 失效
公开(公告)号：JP2001252830A
公开(公告)日：2001-09-18
申请号：JP2000063468
申请日：2000-03-08
申请人： MORI NAOTAKE , MITSUBISHI ELECTRIC CORP
发明人： MORI NAOTAKE , FURUYA KATSUSHI , KOSUGE MAMORU , MASUZAWA TAKAHISA , SUZUKI MASAYUKI , YOSHIDA MANABU , GOTO AKIHIRO , MORO TOSHIO
IPC分类号： B23H5/00 , B23H7/00 , B23H7/02 , B23H7/08 , B23H7/22 , B23H9/00
摘要： PROBLEM TO BE SOLVED: To provide a machining method and a device with a wire electrode capable of forming an even surface modified layer having the predetermined characteristic in a work at a practical discharge surface treatment speed. SOLUTION: This machining method is provided with a first process for generating a discharge between a discharge surface treatment electrode 6 and a wire electrode 2a and for adhering the discharge surface treatment material to a surface of the wire electrode 2a with the discharge energy, and a second process for generating a discharge between the coated with electrode 2, to which the discharge surface treatment material is adhered, and a work 1 so as to form a surface modified layer in the surface of the work 1 with the discharge energy. Since a normal wire electrode 2a can be used, the costs can be lowered. Since the discharge surface treatment can be performed to the work 1 immediately after forming the coated wire 2, the surface modified layer can be efficiently formed in the work 1.

10. 发明专利

JPH10138049A ELECTRIC DISCHARGE MACHINE AND ELECTRIC DISCHARGE MACHINING METHOD 失效
公开(公告)号：JPH10138049A
公开(公告)日：1998-05-26
申请号：JP29896996
申请日：1996-11-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： YOSHIDA MANABU , WATANABE HISANORI , WADA KOETSU
IPC分类号： B23H7/20 , B23H7/26
摘要： PROBLEM TO BE SOLVED: To perform electric discharge machining by which plane accuracy of a machining bottom surface is enhanced by controlling a position of a tool electrode on the basis of data on a stored maching shape path and an electrode axis directional feed quantity to a tool electrode plane directional movement at approach time or after approach. SOLUTION: A machining condition storage means 12 of an NC device 11 is provided with a machining shape path storage part 12a, an oblique approach starting height storage part 12b to store data set in a Z axis directional position of a tool electrode at approach starting time, an oblique approach XY moving distance storage part 12c to store data on an XY directional moving distance of the electrode at approach starting time, a machining condition table part 12d and a Z axis correction quantity storage part 12e to store a Z axis correction quantity with respective machining conditions being a Z axis directional feed quantity. A position of the electrode is controlled on the basis of data on a machining shape path and a Z axis directional feed quantity in the XY axis direction of the tool electrode at approach time or after approach by a tool electrode position control means 13.

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