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1. 发明公开

EP0676254A1 METHOD FOR PREVENTING COLLISION OF A MOVING SHAFT OF A WIRE ELECTRIC DISCHARGE MACHINE 失效
标题翻译：一种防止电火花放电机移动轴碰撞的方法
公开(公告)号：EP0676254A1
公开(公告)日：1995-10-11
申请号：EP94927103.5
申请日：1994-09-27
申请人： FANUC LTD.
发明人： KITA, Yuki, Room 10-203, Fanuc Manshion Harimomi , ITO, Masaya, Fanuc Dai-3 Vira-karamatsu , FUJITA, Minoru, Fanuc Dai-3 Vira-karamatsu
IPC分类号： B23H7/02 , B23H7/26
CPC分类号： B23H7/26 , B23H7/02 , B23H7/065
摘要： A method for preventing collision of a moving shaft of a wire electric discharge machine in which at least one moving shaft (8) is driven and controlled by a servomotor (M) comprising the steps of configuring a control system for a servomotor for the moving shaft (8) which drives and controls at least one moving shaft so as to include therein a disturbance estimating observer, allowing the disturbance observer to estimate the load of a disturbance applied to the moving shaft, comparing the estimated disturbance with a pre-set value, and judging that the moving shaft is brought into collision with an obstacle when the estimated disturbance exceeds the pre-set value, thereby preventing a damage from the collision of the moving shaft of the wire electric discharge machine through the collision detection resulting from the judgement.
摘要翻译：一种用于防止电火花线切割机的移动轴的碰撞的方法，其中至少一个移动轴（8）由伺服电动机（M）驱动和控制，该方法包括以下步骤：配置用于移动轴的伺服电机的控制系统（8），其驱动和控制至少一个移动轴以便在其中包括干扰估计观测器，允许干扰观测器估计施加到移动轴的干扰的负载，将估计的干扰与预设值进行比较，并且当估计的干扰超过预设值时判断移动轴与障碍物发生碰撞，由此防止由于判断而导致的碰撞检测由于电火花线切割机的移动轴的碰撞而造成的损坏。

2. 发明授权

EP0604665B1 WIRE TEMPERATURE MEASURING METHOD FOR WIRE ELECTRICAL DISCHARGE MACHINE 失效
标题翻译：测量电极丝温度的。在一放电加工机线切割方法
公开(公告)号：EP0604665B1
公开(公告)日：1996-12-27
申请号：EP93916159.2
申请日：1993-07-13
申请人： FANUC LTD.
发明人： OBARA, Haruki , KITA, Yuki, 10-203, Fanuc Manshion Harimomi , ITO, Masaya, Fanuc Dai-3 Vira-karamatsu
IPC分类号： B23H7/02 , B23H7/04
CPC分类号： B23H7/02 , B23H7/04
摘要： A method for measuring accurately the temperature and distribution of the wire while executing an electrical discharge machining. After the machining voltage is turned off, the loop current (IL) flows. The resistance between electrodes (11 and 12) is obtained from this loop current (IL) and the voltage between the electrodes (11 and 12) measured by a differential amplifier (13). From this resistance, the temperature of the wire (1) is obtained. Thus, the wire temperature can be measured accurately during an actual machining.

3. 发明授权

EP0649698B1 APPARATUS FOR ELECTRIC DISCHARGE MACHINING 失效
标题翻译：设备电火花加工
公开(公告)号：EP0649698B1
公开(公告)日：2000-06-28
申请号：EP94913797.0
申请日：1994-04-21
申请人： FANUC LTD.
发明人： KITA, Yuki, Fanuc Mansion Harimomi 10-203 , ITO, Masaya, Fanuc Dai-3 Vira-karamatsu , YAMAGUCHI, Meguru, Fanuc Dai-3 Vira-karamatsu , SATO, Hiroshi, Fanuc Dai-1 Vira-karamatsu
IPC分类号： G05B19/409
CPC分类号： G05B19/4063 , G05B19/40937 , G05B2219/31407 , G05B2219/34494 , G05B2219/45221 , Y02P90/265
摘要： An apparatus for wire electric discharge machining or an apparatus for electric discharge machining for engraving, the machining time of which can be controlled reliably. The apparatus has means (1) for determining actual machining condition including the machining speed in accordance with machining condition basic data (8) obtained experimentally in advance, and set data (7) inputted by the operator, means (2) for calculating the circumferential length L of a workpiece by use of a machining program (9), means (3) for calculating machining time in accordance with the machining speed included in the actual machining condition and the circumferential length L, means (4) for calculating the machining end time (t+T) from the present time t measured by clock means (14a) and the machining time T, display means (16) display the present time t on an analogue clock (63), and the machining end time (t+T) on an analogue clock (64). Since the present time and the machining end time are thus displayed on analogue clocks, the operator can recognize such information easily just by observing the screen, thus making it possible to easily control the machining time exactly.

4. 发明授权

EP0680800B1 METHOD FOR AUTOMATICALLY ADJUSTING THE GAP OF AN UPPER NOZZLE FOR A WIRE ELECTRIC DISCHARGE MACHINE 失效
标题翻译：法自动距离设置上JET放电加工机线切割
公开(公告)号：EP0680800B1
公开(公告)日：1998-04-22
申请号：EP94927102.7
申请日：1994-09-27
申请人： FANUC LTD.
发明人： KITA, Yuki, Fanuc Manshonharimomi, Room 10-203 , ITO, Masaya, Fanuc Dai-3 Vira-karamatsu , FUJITA, Minoru, Fanuc Dai-3 Vira-karamatsu
IPC分类号： B23H7/02 , B23H7/10
CPC分类号： B23H7/065 , B23H7/02 , B23H7/101 , B23H7/26

5. 发明公开

EP0680800A1 METHOD FOR AUTOMATICALLY ADJUSTING THE GAP OF AN UPPER NOZZLE FOR A WIRE ELECTRIC DISCHARGE MACHINE 失效
标题翻译： DEVICE FOR AUTOMATIC距离设置上部喷气金属丝的切割放电加工机。
公开(公告)号：EP0680800A1
公开(公告)日：1995-11-08
申请号：EP94927102.7
申请日：1994-09-27
申请人： FANUC LTD.
发明人： KITA, Yuki, Fanuc Manshonharimomi, Room 10-203 , ITO, Masaya, Fanuc Dai-3 Vira-karamatsu , FUJITA, Minoru, Fanuc Dai-3 Vira-karamatsu
IPC分类号： B23H7/02 , B23H7/10
CPC分类号： B23H7/065 , B23H7/02 , B23H7/101 , B23H7/26
摘要： A method for automatically adjusting the gap of an upper nozzle for a wire electric discharge machine in which an upper nozzle (2) is mounted on a Z-shaft (1) driven by a servo motor M and in which a wire is caused to pass through the upper nozzle (2), the method comprising the steps of configuring a control system for controlling the driving of the servo motor M for driving the Z-shaft of a wire electric discharge machine so as to include a disturbance estimating observer therein, detecting collisions between the upper nozzle (2) and reference positions (6, 7) by means of the disturbance estimating observer, stopping servo motor M so as to position the upper nozzle (2) at the reference positions (6, 7) when the collisions between the upper nozzle (2) and the reference positions (6, 7) are detected, deciding a position of the upper nozzle (2) with respect to the reference positions (6, 7) by lifting the Z-shaft (1) by a set value corresponding to an upper nozzle gap after the upper nozzle (2) is positioned at the reference positions (6, 7), thereby adjusting the gap of the upper nozzle (2) to any set value.
摘要翻译：一种用于在其中自动地调节上喷嘴的间隙为一个电火花线切割机到上喷嘴的方法（2）被安装在Z-轴（1）由伺服电动机M，并且其中被驱动的线被导致传通过上部喷嘴（2），包括用于控制伺服电机M的驱动，用于驱动电火花线切割机的Z轴配置的控制系统，以便包括一个干扰估计。其中观察者的步骤，该方法检测（7 6）经扰动的手段推定观测器，停止伺服马达M，以便定位该上部喷嘴上部喷嘴（2）和参考位置之间的碰撞（2）的基准位置（6,7），当碰撞上部喷嘴（2）和参考位置之间（6，7）（7 6）通过抬起Z-轴（1）由检测，决定上喷嘴（2）的位置相对于基准位置的设定值到上NOZ后相应上喷嘴间隙 ZLE（2）的基准位置的位置（6,7），从而调节所述上喷嘴（2）的间隙，以任意设定的值。

6. 发明公开

EP0649698A1 APPARATUS FOR ELECTRIC DISCHARGE MACHINING 失效
标题翻译： DEVICE放电加工。
公开(公告)号：EP0649698A1
公开(公告)日：1995-04-26
申请号：EP94913797.0
申请日：1994-04-21
申请人： FANUC LTD.
发明人： KITA, Yuki, Fanuc Mansion Harimomi 10-203 , ITO, Masaya, Fanuc Dai-3 Vira-karamatsu , YAMAGUCHI, Meguru, Fanuc Dai-3 Vira-karamatsu , SATO, Hiroshi, Fanuc Dai-1 Vira-karamatsu
IPC分类号： B23H7/20
CPC分类号： G05B19/4063 , G05B19/40937 , G05B2219/31407 , G05B2219/34494 , G05B2219/45221 , Y02P90/265
摘要： An apparatus for wire electric discharge machining or an apparatus for electric discharge machining for engraving, the machining time of which can be controlled reliably. The apparatus has means (1) for determining actual machining condition including the machining speed in accordance with machining condition basic data (8) obtained experimentally in advance, and set data (7) inputted by the operator, means (2) for calculating the circumferential length L of a workpiece by use of a machining program (9), means (3) for calculating machining time in accordance with the machining speed included in the actual machining condition and the circumferential length L, means (4) for calculating the machining end time (t+T) from the present time t measured by clock means (14a) and the machining time T, display means (16) display the present time t on an analogue clock (63), and the machining end time (t+T) on an analogue clock (64). Since the present time and the machining end time are thus displayed on analogue clocks, the operator can recognize such information easily just by observing the screen, thus making it possible to easily control the machining time exactly.

7. 发明公开

EP0604665A1 WIRE TEMPERATURE MEASURING METHOD FOR WIRE ELECTRICAL DISCHARGE MACHINE 失效
标题翻译：电火花线切割机线温测量方法
公开(公告)号：EP0604665A1
公开(公告)日：1994-07-06
申请号：EP93916159.2
申请日：1993-07-13
申请人： FANUC LTD.
发明人： OBARA, Haruki , KITA, Yuki, 10-203, Fanuc Manshion Harimomi , ITO, Masaya, Fanuc Dai-3 Vira-karamatsu
IPC分类号： B23H7/02 , B23H7/04
CPC分类号： B23H7/02 , B23H7/04
摘要： A method for measuring accurately the temperature and distribution of the wire while executing an electrical discharge machining. After the machining voltage is turned off, the loop current (I L ) flows. The resistance between electrodes (11 and 12) is obtained from this loop current (I L ) and the voltage between the electrodes (11 and 12) measured by a differential amplifier (13). From this resistance, the temperature of the wire (1) is obtained. Thus, the wire temperature can be measured accurately during an actual machining.
摘要翻译：在执行放电加工的同时精确测量导线的温度和分布的方法。加工电压关闭后，回路电流（IL）流动。从这个环路电流（IL）和由差分放大器（13）测量的电极（11和12）之间的电压获得电极（11和12）之间的电阻。从这个电阻获得导线（1）的温度。因此，在实际加工期间可以精确测量电线温度。

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