公开(公告)号：EP1721693A4

公开(公告)日：2008-05-21

申请号：EP04704757

申请日：2004-01-23

申请人： MITSUBISHI ELECTRIC CORP

发明人： MIYAKE HIDETAKA ,  NAKAGAWA TAKAYUKI ,  IMAI YOSHIHITO

IPC分类号： B23H7/30 ,  B23H1/10 ,  B23H7/26 ,  B23H7/36 ,  B23H9/14

CPC分类号： B23H7/36 ,  B23H1/10 ,  B23H7/265 ,  B23H9/14 ,  B23H2400/10

摘要： An electric discharge machine comprising a hollow rod-like guide electrode (7) containing a thin wire electrode (8) for discharge machining slidably, guide electrode grasping means (9, 19, 20) for grasping the guide electrode (7) at a fixed position, pressure fluid supply means (10, 11) for supplying pressure fluid into the guide electrode (7) to feed the thin wire electrode (8) to the discharge machining side from the inside of the guide electrode (7), and a thin wire electrode grasping means (21) for automatically grasping the thin wire electrode (8) fed out from the guide electrode (7).

摘要翻译： 一种放电加工装置，其特征在于，具有：包含可滑动地进行放电加工的细线电极（8）的中空的棒状的引导电极（7）;引导电极把持机构（9,19,20） 用于将压力流体供给到引导电极（7）中以将细线电极（8）从引导电极（7）的内部供给放电加工侧的压力流体供给装置（10,11） 线电极夹持装置（21），用于自动夹持从导向电极（7）送出的细线电极（8）。

公开(公告)号：EP1283084A4

公开(公告)日：2007-11-28

申请号：EP00927768

申请日：2000-05-15

申请人： MITSUBISHI ELECTRIC CORP

发明人： NAKAGAWA TAKAYUKI ,  IMAI YOSHIHITO

IPC分类号： B23H1/02 ,  B23H7/18

CPC分类号： B23H7/18 ,  B23H1/02

摘要： An electric discharge machine is provided with a gap servo control unit (3) for controlling the gap distance between an electrode (11) and a workpiece (12) while applying a prescribed voltage between the electrode (11) and the workpiece (12), and a jump control unit (2) for controlling a jump that allows the gap distance to be large temporally for a prescribed time or correspondingly to the machined state. The jump control unit (2) is provided with a jump locus generating section (1) for generating a smooth command locus having a frequency component within a prescribed frequency region not greater than the prescribed frequency or less than the prescribed frequency. The jump control unit (2) controls a jump by using the smooth command locus generated by the jump locus generating section (1).

公开(公告)号：EP1004384A4

公开(公告)日：2008-07-16

申请号：EP98957174

申请日：1998-12-04

申请人： MITSUBISHI ELECTRIC CORP

发明人： IMAI YOSHIHITO ,  NAKAGAWA TAKAYUKI ,  YUZAWA TAKASHI

IPC分类号： B23H1/02 ,  B23H7/20 ,  B23H7/18

CPC分类号： B23H7/18 ,  B23H7/20

摘要： An electric discharge machining control method and an electric discharge machining controller capable of improving a machining speed by keeping an electrical discharge machining process in an optimum state even if an electric discharge machining area is small, wherein a difference signal from a target value and a machined-state detection value, a value obtained by adding a value obtained by multiplying the difference signal by a proportional gain and a value obtained by multiplying the difference signal by a first integral gain and integrating the multiplication result used as a first controlled variable, and a value obtained by multiplying a command value by a second integral gain used as a second controlled variable are determined, and a value obtained by adding the first controlled variable and the second controlled variable and multiplying the addition result by a machining trace vector used as the controlled variable of a drive for adjusting the distance between an electrode and a workpiece is used.

公开(公告)号：EP1473103A4

公开(公告)日：2008-02-13

申请号：EP01970151

申请日：2001-09-19

申请人： MITSUBISHI ELECTRIC CORP

发明人： IMAI YOSHIHITO ,  MIYAKE HIDETAKA ,  NAKAGAWA TAKAYUKI

IPC分类号： B23H7/26 ,  B23H7/28 ,  B23H7/30 ,  B23H7/32

CPC分类号： B23H7/32 ,  B23H7/26 ,  B23H7/28 ,  B23H7/30 ,  B23H2400/10

摘要： A machining condition is controlled by an electrode drive unit consisting of a machining electrode (101) mounting unit (106), radial drive units (107, 108) for supporting and driving the mounting unit (106) in a radial direction and in non-contact, and thrust drive units (111, 112) for supporting and driving the mounting unit (106) in a thrust direction and in non-contact, and by adjusting the position of the machining electrode (101) by means of the electrode drive unit. Such arrangement restrains an increase in mass of a portion to be driven concurrently with the electrode, and delivers a high responsiveness in X-axis, Y-axis and Z-axis directions, thereby providing an electric discharge machining device capable of being improved in machining speed and machining precision.

摘要翻译： 加工条件通过由加工电极（101）安装单元（106），径向驱动单元（107,108）构成的电极驱动单元来控制，该径向驱动单元（107,108）用于沿径向支撑和驱动安装单元（106） 接触和推力驱动单元（111,112），用于在推力方向上和非接触地支撑和驱动安装单元（106），并且通过借助于电极驱动单元（101）调整加工电极（101）的位置， 。 这样的配置抑制了与电极同时被驱动的部分的质量的增加，并且在X轴，Y轴和Z轴方向上提供了高响应度，从而提供了一种能够改进加工的放电加工装置 速度和加工精度。

公开(公告)号：EP1004385A4

公开(公告)日：2007-12-05

申请号：EP99918359

申请日：1999-05-11

申请人： MITSUBISHI ELECTRIC CORP

发明人： IMAI YOSHIHITO ,  NAKAGAWA TAKAYUKI ,  YUZAWA TAKASHI

IPC分类号： B23H7/16 ,  B23H7/18 ,  B23H7/20 ,  B23H1/02

CPC分类号： B23H7/18 ,  B23H7/16 ,  B23H7/20 ,  B23H2400/10

摘要： Electrodischarge machining is stabilized by limiting disturbances in an interelectrode control system due to the eccentricity of rotating electrodes, variations in electric characteristics of feeder brushes, the mechanical resonance of an electrode drive system and so on. To increase process speed, detected quantities associated with the machining status are filtered, and the filtered control quantities serve to control the distance between the electrode and the workpiece.

摘要翻译： 由于旋转电极的偏心，馈电刷的电特性的变化，电极驱动系统的机械共振等，通过限制电极间控制系统中的干扰来使电放电加工稳定。 为了提高处理速度，对与加工状态相关的检测量进行过滤，并且过滤后的控制量用于控制电极和工件之间的距离。