专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10543546B2 Wire electric discharge machine including average discharge delay time calculating unit 有权
公开(公告)号：US10543546B2
公开(公告)日：2020-01-28
申请号：US15723156
申请日：2017-10-02
申请人： FANUC Corporation
发明人： Tomoyuki Furuta
IPC分类号： B23H1/02 , B23H7/04 , B23H7/20 , B23H7/18
摘要： In a wire electric discharge machine, time from application of a voltage to a machining gap between a workpiece and a wire electrode until occurrence of electric discharge is measured as a discharge delay time, and the measured discharge delay time is integrated over a predetermined measurement period to calculate a discharge delay integrated time. Further, the number of times of the voltage application in the measurement period is counted. An average discharge delay time per voltage application in the measurement period is calculated from the discharge delay integrated time and the number of times of voltage application. The movement of the wire electrode with respect to the workpiece is controlled on the basis of the average discharge delay time.

2. 发明申请

US20190228881A1 CABLE 审中-公开
公开(公告)号：US20190228881A1
公开(公告)日：2019-07-25
申请号：US16250319
申请日：2019-01-17
申请人： FANUC CORPORATION
发明人： Tomoyuki Furuta
IPC分类号： H01B7/30 , H01B7/02
摘要： A cable includes: a linear conductor; a plurality of resin hollow tubes which are disposed around the conductor so that an air layer is formed around the conductor and which extend in a longitudinal direction of the conductor; and an insulating protective member configured to protect the conductor and the plurality of hollow tubes.

3. 发明授权

US08735762B2 Wire electric discharge machine capable of detecting machining state and determining average voltage in machining gap 有权
标题翻译：能够检测加工状态并确定加工间隙中的平均电压的线放电机
公开(公告)号：US08735762B2
公开(公告)日：2014-05-27
申请号：US13680392
申请日：2012-11-19
申请人： Fanuc Corporation
发明人： Masao Murai , Tomoyuki Furuta
IPC分类号： B23H7/00 , B23H7/14 , G05B15/00
CPC分类号： B23H1/02 , B23H1/024 , B23H7/04 , B23H7/14 , B23H7/18
摘要： In order to detect a machining state of a wire electric discharge machine, the state of a machining gap is classified into three categories; an open-circuit state in which electric discharge does not occur after a first predetermined level is reached or surpassed by a machining-gap voltage, an electric discharge state in which electric discharge occurs after a second predetermined level is reached or surpassed by the machining-gap voltage, whereby the machining-gap voltage becomes lower than the second predetermined level, and a short-circuit state wherein a third predetermined level is not reached or surpassed by the machining-gap voltage. An average voltage in the machining gap is determined based on voltages in these states and the number of cycles of voltage application to the machining gap, number of open-circuits, number of discharges, and number of short-circuits per unit time.
摘要翻译：为了检测电火花线切割机的加工状态，将加工间隙的状态分为三类，在通过加工间隙电压达到或超过第一预定电平之后不发生放电的开路状态，在第二预定电平达到或超过加工间隙电压之后发生放电的放电状态，间隙电压，由此加工间隙电压变得低于第二预定电平，以及短路状态，其中第三预定电平未达到或超过加工间隙电压。基于这些状态下的电压和对加工间隙的施加电压的次数，开路次数，放电次数以及每单位时间的短路次数，确定加工间隙中的平均电压。

4. 发明授权

US11135668B2 Wire electrical discharge machine 有权
公开(公告)号：US11135668B2
公开(公告)日：2021-10-05
申请号：US15689432
申请日：2017-08-29
申请人： FANUC CORPORATION
发明人： Tomoyuki Furuta , Tomoaki Matsunaga
IPC分类号： B23H7/30 , B23H1/02 , B23H7/20 , B23H7/10 , B23H1/04 , B23H7/06 , B23H7/04
摘要： A wire electrical discharge machine includes a first voltage applying circuit, a second voltage applying circuit, and a switch controller. The first voltage applying circuit includes a first DC power source for applying a positive polarity voltage across an electrode gap, and a first switch for on/off-switching of application of the positive polarity voltage. The second voltage applying circuit includes a second DC power source for applying a reverse polarity voltage to the electrode gap, and a second switch for on/off-switching of application of the reverse polarity voltage. The switch controller controls the first switch and the second switch so that the first switch and the second switch are not turned on simultaneously. The first DC power source and the second DC power source are set up so that the absolute value of the reverse polarity voltage is lower than the absolute value of the positive polarity voltage.

5. 发明申请

US20180056421A1 WIRE ELECTRICAL DISCHARGE MACHINE 审中-公开
公开(公告)号：US20180056421A1
公开(公告)日：2018-03-01
申请号：US15689432
申请日：2017-08-29
申请人： FANUC CORPORATION
发明人： Tomoyuki Furuta , Tomoaki Matsunaga
IPC分类号： B23H7/30 , B23H1/02 , B23H7/20 , B23H7/10 , B23H1/04 , B23H7/06
CPC分类号： B23H7/30 , B23H1/022 , B23H1/024 , B23H1/028 , B23H1/04 , B23H7/04 , B23H7/065 , B23H7/10 , B23H7/20 , B23H2300/20
摘要： A wire electrical discharge machine includes a first voltage applying circuit, a second voltage applying circuit, and a switch controller. The first voltage applying circuit includes a first DC power source for applying a positive polarity voltage across an electrode gap, and a first switch for on/off-switching of application of the positive polarity voltage. The second voltage applying circuit includes a second DC power source for applying a reverse polarity voltage to the electrode gap, and a second switch for on/off-switching of application of the reverse polarity voltage. The switch controller controls the first switch and the second switch so that the first switch and the second switch are not turned on simultaneously. The first DC power source and the second DC power source are set up so that the absolute value of the reverse polarity voltage is lower than the absolute value of the positive polarity voltage.

6. 发明申请

US20170239741A1 DIELECTRIC WORKING FLUID CENTRALIZED MANAGEMENT SYSTEM 审中-公开
公开(公告)号：US20170239741A1
公开(公告)日：2017-08-24
申请号：US15437750
申请日：2017-02-21
申请人： FANUC CORPORATION
发明人： Tomoyuki Furuta
IPC分类号： B23H1/10 , B23H7/36
摘要： A dielectric working fluid centralized management system is equipped with a dielectric working fluid adjustment apparatus for adjusting the fluid quality of a dielectric working fluid of a plurality of wire electrical discharge machines, a dielectric working fluid delivery and reception control member for controlling delivery and reception of the dielectric working fluid between a plurality of dielectric working fluid storage tanks disposed corresponding respectively to the plurality of wire electrical discharge machines, and in which the dielectric working fluid is stored, and the dielectric working fluid adjustment apparatus, and a dielectric working fluid quality controller, which receives dielectric working fluid information from the plurality of wire electrical discharge machines and controls the dielectric working fluid delivery and reception control member, or both the dielectric working fluid delivery and reception control member and the dielectric working fluid adjustment apparatus.

7. 发明授权

US11420277B2 Wire electrical discharge machine and control method of wire electrical discharge machine 有权
公开(公告)号：US11420277B2
公开(公告)日：2022-08-23
申请号：US16724763
申请日：2019-12-23
申请人： FANUC CORPORATION
发明人： Yousuke Tsuchiya , Tomoyuki Furuta
IPC分类号： B23H1/02 , B23H7/10
摘要： A wire electrical discharge machine for machining a workpiece by generating electric discharge at a discharge gap between the workpiece and a wire electrode includes: a machining current setting unit for setting the magnitude of a normal machining current depending on the discharge gap state at application of a discharge induction voltage at the previous time or previous times; and a machining current control unit configured to control a main discharge circuit so as to supply the normal machining current to the discharge gap when the present discharge gap state is the normal state, control the main discharge circuit so as to supply a short-circuit machining current smaller than a predetermined current to the gap when the discharge gap state is the short-circuited state, and control the main discharge circuit so as not to supply any machining current to the gap when the discharge gap state is the open state.

8. 发明授权

US10792744B2 Wire electric discharge machine including average discharge delay time calculating unit 有权
公开(公告)号：US10792744B2
公开(公告)日：2020-10-06
申请号：US15723160
申请日：2017-10-02
申请人： FANUC Corporation
发明人： Tomoyuki Furuta
IPC分类号： B23H7/18 , B23H1/02 , B23H7/04 , B23H7/20
摘要： In a wire electric discharge machine, time from application of a voltage to a machining gap between a workpiece and a wire electrode until occurrence of electric discharge is measured as a discharge delay time, and the measured discharge delay time is integrated over a predetermined measurement period to calculate a discharge delay integrated time. Further, the number of times of the voltage application in the measurement period is counted. An average discharge delay time per voltage application in the measurement period is calculated from the discharge delay integrated time and the number of times of voltage application. The movement of the wire electrode with respect to the workpiece is controlled on the basis of the average discharge delay time.

9. 发明授权

US10688576B2 Dielectric working fluid centralized management system 有权
公开(公告)号：US10688576B2
公开(公告)日：2020-06-23
申请号：US15437750
申请日：2017-02-21
申请人： FANUC CORPORATION
发明人： Tomoyuki Furuta
IPC分类号： B23H1/10 , B23H7/36 , B23H7/02
摘要： A dielectric working fluid centralized management system is equipped with a dielectric working fluid adjustment apparatus for adjusting the fluid quality of a dielectric working fluid of a plurality of wire electrical discharge machines, a dielectric working fluid delivery and reception control member for controlling delivery and reception of the dielectric working fluid between a plurality of dielectric working fluid storage tanks disposed corresponding respectively to the plurality of wire electrical discharge machines, and in which the dielectric working fluid is stored, and the dielectric working fluid adjustment apparatus, and a dielectric working fluid quality controller, which receives dielectric working fluid information from the plurality of wire electrical discharge machines and controls the dielectric working fluid delivery and reception control member, or both the dielectric working fluid delivery and reception control member and the dielectric working fluid adjustment apparatus.

10. 发明授权

US09950378B2 Wire electric discharge machine 有权
公开(公告)号：US09950378B2
公开(公告)日：2018-04-24
申请号：US15088186
申请日：2016-04-01
申请人： FANUC Corporation
发明人： Tomoyuki Furuta , Shinji Yoda , Akiyoshi Kawahara , Yasuo Nakashima
IPC分类号： B23H7/00 , B23H1/02 , B23H1/04 , B23H7/04
CPC分类号： B23H1/02 , B23H1/024 , B23H1/04 , B23H7/04
摘要： In a wire electric discharge machine, a discharge delay time is used to classify the inter-electrode state into three categories; a short-circuit state, small-gap state, and large-gap state. Based on this classification, the magnitude of a machining current supplied from a main discharge circuit is determined. If the discharge delay time is zero (i.e., if no electric discharge is generated) after the lapse of a predetermined time since the start of the application of a machining voltage to an inter-electrode gap by an auxiliary discharge circuit, the inter-electrode gap is determined to be short-circuited by machining chips. Thereupon, a short-circuit machining current is supplied from the main discharge circuit to the inter-electrode gap to remove the machining chips. In this way, establishment of a complete short-circuit state is prevented so that the machining efficiency is improved to increase the machining speed.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式