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1. 发明专利

JP5220179B2 Wire electric discharge machine 有权
公开(公告)号：JP5220179B2
公开(公告)日：2013-06-26
申请号：JP2011269607
申请日：2011-12-09
申请人：株式会社ソディック
发明人：清幸山崎 , 竜生松井
IPC分类号： B23H7/10 , B23H7/02
CPC分类号： B23H1/024 , B23H7/02 , B23H7/10 , B23H7/16 , B23H7/26
摘要： Provided is a wire discharge machining device and method capable of reliably terminating the short circuit between a wire electrode and a workpiece. The present invention relates to a wire discharge machining device in which a discharge is generated in a machining gap formed between a workpiece (3) and a wire discharge electrode (2) inserted through a start hole (4) in the workpiece to start machining of the workpiece. This wire discharge machining device includes: a tension control device (56) for controlling the tension of the wire electrode so as to keep the tension a set value; a short circuit detector (57) for detecting a short circuit between the wire electrode and the workpiece; and a short circuit termination system for reducing the tension of the wire electrode and causing the wire electrode to vibrate in order to terminate the short circuit when the short circuit detector has detected a short circuit.

2. 发明专利

JP2007044813A Electric discharge machining device 审中-公开
标题翻译：电动放料加工设备
公开(公告)号：JP2007044813A
公开(公告)日：2007-02-22
申请号：JP2005231912
申请日：2005-08-10
申请人： Fanuc Ltd , ファナック株式会社
发明人： MURAI MASAO , NAKAJIMA YASUO
IPC分类号： B23H7/02
CPC分类号： B23H1/024 , B23H1/022 , B23H7/16 , B23H7/18
摘要： PROBLEM TO BE SOLVED: To correctly detect electric discharge when performing electric discharge machining by minimal machining energy such as for finishing.
SOLUTION: ON/OFF of a switching element is repeated, voltage is intermittently impressed between a tool electrode 1 and an electrode of a workpiece 2, stray capacity between the electrodes is charged, and electric discharge is generated between the electrodes by the charging voltage, to perform the machining. Electric discharge of the electric discharge machining is detected by the fine machining energy. Current between electrodes is determined by integrating an output of a sensor coil 3 by an integrator 4. An offset component superimposed on the output of the integrator 4 is extracted by a low-pass filter 5. The offset component is removed from the output of the integrator 4 by a differential amplifier 6. An output of the differential amplifier 6 is compared with a reference value by a comparator 7 to detect electric discharge. In also the machining by the fine electric discharge energy, electric discharge can be exactly detected.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过最少的加工能量进行放电加工，例如精加工来正确检测放电。解决方案：重复开关元件的ON / OFF，在工具电极1和工件2的电极之间间歇地施加电压，电极之间的杂散电容被充电，并且电极之间产生放电充电电压，进行加工。放电加工的放电由精细加工能量检测。通过积分器4对传感器线圈3的输出进行积分来确定电极之间的电流。叠加在积分器4的输出上的偏移分量由低通滤波器5提取。偏移分量从积分器4.差分放大器6的输出通过比较器7与参考值进行比较，以检测放电。也可以通过精细放电能量进行加工，可以精确检测出放电。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2006142476A Method and system for monitoring and controlling electrolytic corrosion 有权
标题翻译：用于监测和控制电腐蚀的方法和系统
公开(公告)号：JP2006142476A
公开(公告)日：2006-06-08
申请号：JP2005324267
申请日：2005-11-09
申请人： General Electric Co , ゼネラル・エレクトリック・カンパニイGeneral Electric Company
发明人： LUO YUANFENG , YUAN RENWEI , WANG KELVIN JUNWEN , WEI BIN , LAMPHERE MICHAEL S
IPC分类号： B23H1/02 , B23H7/16 , B23H7/20
CPC分类号： B23H7/16 , B23H1/02
摘要： PROBLEM TO BE SOLVED: To provide a method for monitoring a processing operation in an electrolytic corrosion assembly (100) having an electric power source (20) and an electrode (10) arranged so as to separate from a workpiece (14) by a clearance (12). SOLUTION: The method includes a step for measuring the voltage at a certain point on a voltage wave after a time lag t d which is half of the pulse width of the voltage wave. A plurality of voltage values are achieved by repeating the measurement for a plurality of pulses of the voltage wave. These voltage values correspond to the certain points on the respective pulses respectively. A mean voltage is achieved by averaging these voltage values. Then, whether the processing operation is being controlled or not is judged by comparing the mean voltage with at least one threshold voltage value. When the compared result shows that the processing operation is not controlled, a control signal is generated so as to adjust operating parameters of the electric power source. When the control signal has been generated, the control signal is output to the electric power source. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种用于监测电解腐蚀组件（100）中的处理操作的方法，所述电解腐蚀组件（100）具有布置成与工件（14）分离的电源（20）和电极（10）通过间隙（12）。解决方案：该方法包括用于测量在电压波的脉冲宽度的一半的时间延迟t SB SB之后的电压波上的某一点处的电压的步骤。通过对电压波的多个脉冲重复测量来实现多个电压值。这些电压值分别对应于相应脉冲上的某些点。通过平均这些电压值来实现平均电压。然后，通过将平均电压与至少一个阈值电压值进行比较来判断处理操作是否被控制。当比较结果表明处理操作未被控制时，产生控制信号以便调节电源的操作参数。当产生控制信号时，控制信号被输出到电源。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JPS6119511A Method and apparatus for electric discharge machining 失效
标题翻译：电动放料的方法与装置
公开(公告)号：JPS6119511A
公开(公告)日：1986-01-28
申请号：JP13908284
申请日：1984-07-06
申请人： Mitsubishi Electric Corp
发明人： SAKAKIBARA TOSHIMITSU , NAKADA MASAHIRO
IPC分类号： B23H1/00 , B23H7/16
CPC分类号： B23H7/16
摘要： PURPOSE:To attain high accuracy electric discharge machining without leaving any unworked portions by providing a discharge level detector and narrowing a gap between an electrode and a workpiece in the start of working for forcible discharge which is thereafter changed over to normal electrospark machining. CONSTITUTION:In an electric discharge machining apparatus which interposes working liquid between an electrode 1 and a workpiece 2 to apply pulse voltage from a power source 3 is installed a discharge level detector 7, and the electrode 1 is forcibly moved close to the work 2 by a feed control unit 4 and a drive unit 5 in the beginning of working and the reworking. When discharge takes place and discharge current reaches a predetermined value, said detector 7 is operated, and the feed control unit 4 changes over the control signal to a discharge condition detector 6 to continue thereafter normal electric discharge machining and complete the working. Thus, high accuracy electric discharge machining is attained without leaving any unworked portions of the work.
摘要翻译：目的：为了实现高精度放电加工而不留下任何未加工部分，通过提供放电水平检测器，并且在开始强制放电工作之后使电极和工件之间的间隙变窄，然后转换为正常的电火花加工。构成：在电极1和工件2之间插入工作液体以施加来自电源3的脉冲电压的放电加工装置安装有放电电平检测器7，电极1被强制地靠近工件2移动到工件2附近进给控制单元4和驱动单元5在开始工作和返工时。当放电发生并且放电电流达到预定值时，所述检测器7被操作，并且馈送控制单元4将控制信号转换到放电状态检测器6，继续进行正常的放电加工并完成工作。因此，可以实现高精度的放电加工，而不会留下任何不工作的部分工件。

5. 发明专利

JP4160385B2 Electrical discharge machining method and apparatus 有权
公开(公告)号：JP4160385B2
公开(公告)日：2008-10-01
申请号：JP2002528442
申请日：2000-09-13
申请人：三菱電機株式会社 , 尚武毛利
发明人：元小川 , 長男斎藤 , 尚武毛利 , 聖人神谷
IPC分类号： B23H1/02 , B23H1/10 , B23H7/16 , B23H7/18
CPC分类号： B23H7/16 , B23H1/02 , B23H1/022 , B23H1/024 , B23H7/18

6. 发明专利

JP2005205574A Machining condition optimizing method of electric discharge machine 有权
标题翻译：电动放料机加工条件优化方法
公开(公告)号：JP2005205574A
公开(公告)日：2005-08-04
申请号：JP2004017223
申请日：2004-01-26
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MIKI SHINSUKE , KATOGI HIDETAKA
IPC分类号： B23H1/02 , B23H7/16 , B23H7/20
CPC分类号： B23H1/022 , B23H7/16 , B23H7/20
摘要： PROBLEM TO BE SOLVED: To provide a machining condition optimizing method of an electric discharge machine capable of satisfying the machining speed, low consumption of an electrode, and machining characteristic of a work surface quality irrespective of the kind and the degree of degradation of machining liquid. SOLUTION: An electric discharge voltage detection unit 7 detects the electric discharge voltage, and obtains the mean electric discharge voltage in a predetermined time. An optimum machining condition calculation unit 8 obtains the electric discharge current so that the means electric discharge voltage detected by the electric discharge voltage detection unit 7 is equal to the mean electric discharge voltage by using new machining liquid from the formula of the mean electric discharge voltage, the volume resistivity, the electric discharge current, and the machining gap, and obtains the electric discharge time, the down time and the servo reference voltage according to the obtained electric discharge current from the formula of the electric discharge current, the electric discharge time, the down time, and the servo reference voltage to realize the optimum machining condition stored in a machining condition database storage unit 9. During the machining, a servo 4 and a machining electrode 5 are controlled under the optimum machining condition through a servo control unit 6. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供能够满足加工速度，电极消耗低以及工作表面质量的加工特性的放电加工条件优化方法，而不管种类和退化程度如何的加工液体。解决方案：放电电压检测单元7检测放电电压，并在预定时间内获得平均放电电压。最佳加工条件计算单元8获得放电电流，使得由放电电压检测单元7检测的装置放电电压等于平均放电电压，通过使用新的加工液从平均放电电压，体积电阻率，放电电流和加工间隙，根据从放电电流的公式得到的放电电流，放电时间，放电时间，停电时间和伺服参考电压，停机时间和伺服参考电压，以实现存储在加工条件数据库存储单元9中的最佳加工条件。在加工期间，通过伺服控制单元在最佳加工条件下控制伺服机构4和加工电极5 6.版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JPS6144529A Electric discharge machine 失效
标题翻译：电动排料机
公开(公告)号：JPS6144529A
公开(公告)日：1986-03-04
申请号：JP16476484
申请日：1984-08-08
申请人： Amada Co Ltd
发明人： KONNO MASANORI , IMAI KIYOSHI , DOBASHI TOSHIHIRO
IPC分类号： B23H1/02 , B23H7/16 , B23H7/18 , B23H7/20
CPC分类号： B23H7/20 , B23H7/16 , B23H7/18
摘要： PURPOSE:To prevent the transition to abnormal electric discharge or the continuation of abnormal electric discharge and improve working speed by installing an electrode vertical-movement instruction signal apparatus for outputting a vertical movement signal into an electrode controller, in an electric discharge machine. CONSTITUTION:The terminal for outputting the number of abnormal electric-discharge wave-forms which is installed onto an electric-discharge state discriminating apparatus 19 and the terminal for outputting the number of electric-discharge wave forms in case when an electrode gap is contaminated are connected to the OR element 23 of an electrode vertical-movement instruction signal apparatus 21, and the logic sum of each number of both wave forms is outputted into a counter 25. The output A of the counter 25 is input into a comparator 27 and compared with a set value B, and when A is larger than B, the comparator 27 outputs a signal at H-level into one input terminal of an AND element 29. With such constitution, transition to abnormal electric discharge or the continuation of abnormal electric discharge can be prevented, and further working speed can be improved.
摘要翻译：目的：通过在放电机中安装用于将垂直移动信号输出到电极控制器的电极垂直移动指示信号装置，防止过渡到异常放电或继续发生异常放电，提高工作速度。构成：在电极间隙被污染的情况下，用于输出安装在放电状态识别装置19上的异常放电波形数和用于输出放电波形数的端子的端子是连接到电极垂直移动指示信号装置21的OR元件23，并且将每个数量的两个波形的逻辑和输出到计数器25.计数器25的输出A被输入到比较器27中并进行比较具有设定值B，并且当A大于B时，比较器27将H电平的信号输出到AND元件29的一个输入端。通过这种结构，转换到异常放电或继续异常放电能够进一步提高工作速度。

8. 发明专利

JPS59205234A Electric discharge machining device 失效
标题翻译：电动放料加工设备
公开(公告)号：JPS59205234A
公开(公告)日：1984-11-20
申请号：JP7852683
申请日：1983-05-04
申请人： Mitsubishi Electric Corp
发明人： ITOU TETSUROU
IPC分类号： B23H1/10 , B23H7/16
CPC分类号： B23H7/16
摘要： PURPOSE:To make the occurrence of abnormal discharge preventable, by detecting a time distribution state from voltage impression to the generation of discharge, and discriminating between normal discharge and abnormal one on the basis of the detected result, while spouting an optimum machining solution onto a gap between poles so as to restore the abnormal discharge to normalness. CONSTITUTION:A reversible counter 67 counts the number of generation being judged as a state of being abnormal by time distribution ranging from voltage impressing to discharge generating and give notice of anything unusual via a DA converter 112. In addition, according to the details of the counter 67, the counter 67 opens each of valves V1-V4 corresponding to counting values 2 -2 and feeds a gap between poles with a machining solution flow of 100, 200, 400 and 800cc/min each by way of a spouting passage 118 of a machining electrode 10, and when the counting value is more than a range of 2 , it opens a forced jet valve V5 via an OR circuit 19 and gives a liquid flow of several thousands cc/min, but when the value is below 2 , it gives a minute flow with a manual valve V0. Thus discharge of sludge if efficiently performable so that discharge efficiency can be improved.
摘要翻译：目的：为了防止发生异常放电，通过检测从电压印模到放电产生的时间分布状态，并根据检测结果判断正常放电与异常放电，同时将最佳加工溶液喷射到两极之间的间隙，以使异常放电恢复正常。构成：可逆计数器67通过从电压施加到放电产生的时间分布来计数正在被判断为异常状态的发生次数，并通过DA转换器112发出不寻常的通知。此外，根据计数器67，计数器67打开与计数值2 <6> -2 <9>相对应的每个阀V1-V4，并且每个方向之间以100,200,400和800cc / min的加工液流量供给极之间的间隙的加工电极10的喷射通道118，并且当计数值大于2 <10°的范围时，其通过OR电路19打开强制喷射阀V5，并且产生几千cc/ min的液体流量，但是当该值低于2 <5>时，通过手动阀V0给出一个微小的流量。因此，如果有效地执行污泥排放，以提高排放效率。

9. 发明专利

JPS5924923A Electric discharge machine 失效
标题翻译：电动排料机
公开(公告)号：JPS5924923A
公开(公告)日：1984-02-08
申请号：JP13492382
申请日：1982-08-02
申请人： Mitsubishi Electric Corp
发明人： ITOU TETSUROU
IPC分类号： B23H1/02 , B23H7/16
CPC分类号： B23H7/16
摘要： PURPOSE:To prevent generation of abnormal arc discharge by detecting the shock waves generated in a working gap during electric discharge and discriminating the working state according to the magnitude of the shock wave and controlling the standard voltage in electrode servo feeding. CONSTITUTION:The shock wave generated during electric discharge in a working gap in electric discharge work is large in normal electric discharge and is small in abnormal arc diacharge. The detection signal for the shock wave by a sensor 35 and the detection signal for the discharge current by a current detector CT are inputted into a discriminating circuit 40, and abnormal arc discharge is detected, and the number of generation in continuation is counted. When the number of generation in continuation reaches a prescribed value, the working state is judged abnormal, and a control signal is outputted so as to increase the standard voltage Vr in electrode servo feed. Accordingly, the length of working gap is increased, and abnormal arc discharge is eliminated.
摘要翻译：目的：通过检测在放电期间产生的工作间隙中的冲击波，根据冲击波的大小和控制电极伺服进给中的标准电压来区分工作状态，防止产生异常电弧放电。构成：放电工作间隙放电时产生的冲击波在正常放电时大，异常电弧放电时小。传感器35的冲击波检测信号和电流检测器CT的放电电流检测信号被输入鉴别电路40，检测出异常的电弧放电，对继续的产生次数进行计数。当连续发生次数达到规定值时，判定工作状态异常，并输出控制信号，以增加电极伺服进给中的标准电压Vr。因此，工作间隙的长度增加，并且消除了异常的电弧放电。

10. 发明专利

JPS5741126A Control process of electric machine tool 失效
标题翻译：电机工具控制过程
公开(公告)号：JPS5741126A
公开(公告)日：1982-03-08
申请号：JP11064680
申请日：1980-08-12
申请人： Mitsubishi Electric Corp
发明人： NISHI KENICHI
IPC分类号： B23H11/00 , B23H7/16
CPC分类号： B23H7/16
摘要： PURPOSE:To prevent damage due to contact of the both with each other, etc. in such a way that when incipient tremor is detected during machining, power supply is interrupted, electric conduction is stopped, at the same time, a spindle is controlled so that the electrode can be separated from the work, and it is locked at the determined position. CONSTITUTION:Sensing signal 19 from a P wave sensor 18 which senses incipient tremor of the earthquake is given as input to a conditional circuit 20 to be connected to an operating circuit 15 and to a servo control circuit 14. Provided that P wave is sensed, a switch 22 on the switch circuit 21 is put to be in the condition as shown in the figure, and a power circuit 13 is turned OFF. Output is produced from the conditional circuit 20 by means of transfer of the switch 22 to the state as shown in the figure together with the sensing signal 19 from the P wave, and it is given as input to the servo circuit 14. The servo circuit 14 controls a servo 24 in the reverse direction extraneously to the fact that potential difference has turned out to be zero between signal lines 23a and 23b, and a spindle is sent up. And, it is brought to be stopped in the condition that it is sent up just for the determined distance.
摘要翻译：目的：为了防止由于两者之间的接触而导致的损坏，使得在加工期间检测到初始震颤时，电源中断，导通停止，同时主轴受到控制电极可以与工件分离，并且被锁定在确定的位置。作为输入到要连接到操作电路15和伺服控制电路14的条件电路20的来自P波传感器18的感测信号19的感测信号19作为输入。如果检测到P波，开关电路21上的开关22处于如图所示的状态，电源电路13截止。通过将开关22与来自P波的感测信号19一起传送到如图所示的状态，从条件电路20产生输出，并将其作为输入给予伺服电路14.伺服电路 14相反地控制伺服机构24，其特征在于信号线23a和23b之间的电位差已经变为零，并且主轴被送出。而且，只要确定距离发送就被停止。

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