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1. 发明公开

EP2881206A1 ELECTRICAL DISCHARGE MACHINING METHOD 有权
标题翻译： VERFAHREN ZUR BEARBEITUNG ELEKTRISCHER ENTLADUNGEN
公开(公告)号：EP2881206A1
公开(公告)日：2015-06-10
申请号：EP12882402.6
申请日：2012-07-31
申请人： Makino Milling Machine Co., Ltd.
发明人： HAMADA, Kyoichi , IGI, Nobuaki
IPC分类号： B23H9/14 , B23H9/10
CPC分类号： B23H9/14 , B23H1/00 , B23H9/10
摘要： The present invention provides an electrical discharge machining method that machines throughholes (22) in a workpiece (20) by using an electric discharge machine (100) having a cylindrical pipe electrode (10), in order to solve the issue of the difficulty of machining a tapered section into a variety of shapes, such as forming, e.g., a rounded section having a smaller radius of curvature than the electrode diameter of the pipe electrode, in the inside wall surface of the tapered section. The electrical discharge machining method is configured so as to include: a step in which a pipe electrode (22) is arranged such that the axis line (LO) of the pipe electrode (10) faces the depth direction of the throughholes (22), the pipe electrode (22) is moved relative to the workpiece (20), and a sloped section (24) is formed; a step in which a straight section (23) connected to the sloped section (24) is formed; and a step in which the pipe electrode (10) is arranged such that the axis line (LO) is vertical relative to the inside wall surface (243) of the sloped section (24), the pipe electrode (22) is moved relative to the workpiece (20), and the inside wall surface (243) is machined.
摘要翻译：本发明提供一种放电加工方法，其通过使用具有圆柱形管电极（10）的放电加工机（100）对工件（20）中的通孔（22）进行加工，以解决加工难度问题在锥形部分的内壁表面中形成各种形状的锥形部分，例如形成具有比管状电极的电极直径更小的曲率半径的圆形部分。放电加工方法被构造成包括：管状电极（22）布置成使得管状电极（10）的轴线（LO）面向通孔（22）的深度方向的步骤，管状电极（22）相对于工件（20）移动，形成有倾斜部（24）形成与倾斜部分（24）连接的直线段（23）的步骤; 以及管状电极（10）相对于倾斜部（24）的内壁面（243）配置成使轴线（L0）成垂直的方式，管电极（22）相对于加工工件（20）和内壁面（243）。

2. 发明授权

EP2881206B1 ELECTRICAL DISCHARGE MACHINING METHOD 有权
公开(公告)号：EP2881206B1
公开(公告)日：2019-01-16
申请号：EP12882402.6
申请日：2012-07-31
申请人： Makino Milling Machine Co., Ltd.
发明人： HAMADA, Kyoichi , IGI, Nobuaki
IPC分类号： B23H9/14 , B23H9/10

3. 发明公开

EP2894001A1 WORK-TANK RAISING/LOWERING DEVICE AND WORK-TANK RAISING/LOWERING METHOD FOR ELECTRICAL DISCHARGE MACHINE 有权
标题翻译：设备起重/的工作容器与TRIC排出机下降。
公开(公告)号：EP2894001A1
公开(公告)日：2015-07-15
申请号：EP12884277.0
申请日：2012-09-07
申请人： Makino Milling Machine Co., Ltd.
发明人： HAMADA, Kyoichi , SHIOMIZU, Takayuki
IPC分类号： B23H7/36
CPC分类号： B23H7/36 , B23H1/08 , B23H9/10 , B23H9/14 , B23H11/00
摘要： In order to solve the problem of reduced operability due to a work tank getting in the way when raising or lowering a partitioning plate, in this electrical discharge machine, the top end of a vertically extending electrode (10) is supported by an electrode holder (7) so as to be able to be raised and lowered, the circumferential surface of the bottom end of said electrode (10) is supported by an electrode guide (8) that is disposed so as to be able to move vertically with respect to the electrode holder (7), and the position of said electrode guide (8) is detected by a position detection unit (32). This electrical discharge machine is provided with a work-tank raising/lowering device. During electrical discharge machining, said work-tank raising/lowering device raises/lowers a work tank (17), in accordance with the electrode-guide position (Hg) detected by the position detection unit (32), so as to set the distance from a prescribed part of the work tank (17) to the electrode-guide position (Hg) equal to a prescribed value (Ha). When electrical discharge machining is not being performed, the functionality whereby the work tank (17) is raised/lowered in accordance with the electrode-guide position (Hg) is disabled.
摘要翻译：为了解决这个问题 - 的可操作性降低，由于加工槽的方式获得提高或降低的隔板时，在该放电加工机，一垂直延伸的电极（10）的顶端是通过在电极支架支撑（ 7）以能够被升高和降低，所述电极的底端（10）的圆周表面上通过在电极引导件（8）支撑确实被设置成能够相对于竖直移动到电极夹（7），并且所述电极引导件（8）的位置由位置检测单元（32）检测。这种放电加工机上设置有一个与工作油箱升/降装置。在电火花加工，所述加工罐抬升/降低设备提高/降低了加工槽（17），与由位置检测单元（32）检测出的电极引导位置（Hg）的雅舞蹈以便设定的距离从工作箱（17）连接到电极引导位置（汞柱）等于规定值（HA）的规定部分。当放电加工不是正在执行，由此上工作油箱（17）上升的功能/降低与电极引导位置（汞柱）被禁用雅舞蹈。

4. 发明授权

EP2894001B1 TANK RAISING/LOWERING DEVICE FOR ELECTRICAL DISCHARGE MACHINE 有权
标题翻译：电动卸料机的升降装置
公开(公告)号：EP2894001B1
公开(公告)日：2017-11-01
申请号：EP12884277.0
申请日：2012-09-07
申请人： Makino Milling Machine Co., Ltd.
发明人： HAMADA, Kyoichi , SHIOMIZU, Takayuki
IPC分类号： B23H7/36
CPC分类号： B23H7/36 , B23H1/08 , B23H9/10 , B23H9/14 , B23H11/00
摘要： In order to solve the problem of reduced operability due to a work tank getting in the way when raising or lowering a partitioning plate, in this electrical discharge machine, the top end of a vertically extending electrode (10) is supported by an electrode holder (7) so as to be able to be raised and lowered, the circumferential surface of the bottom end of said electrode (10) is supported by an electrode guide (8) that is disposed so as to be able to move vertically with respect to the electrode holder (7), and the position of said electrode guide (8) is detected by a position detection unit (32). This electrical discharge machine is provided with a work-tank raising/lowering device. During electrical discharge machining, said work-tank raising/lowering device raises/lowers a work tank (17), in accordance with the electrode-guide position (Hg) detected by the position detection unit (32), so as to set the distance from a prescribed part of the work tank (17) to the electrode-guide position (Hg) equal to a prescribed value (Ha). When electrical discharge machining is not being performed, the functionality whereby the work tank (17) is raised/lowered in accordance with the electrode-guide position (Hg) is disabled.

5. 发明授权

EP2894000B1 ELECTRICAL DISCHARGE MACHINING METHOD AND ELECTRODE-GUIDE POSITION SETTING DEVICE 有权
标题翻译：一种用于处理放电及装置设定电极领导
公开(公告)号：EP2894000B1
公开(公告)日：2017-04-19
申请号：EP12884061.8
申请日：2012-09-07
申请人： Makino Milling Machine Co., Ltd.
发明人： HAMADA, Kyoichi , SHIOMIZU, Takayuki
IPC分类号： B23H9/14 , B23H7/20 , G05B19/406 , B23H1/00
CPC分类号： B23H7/18 , B23H1/00 , B23H7/20 , B23H7/34 , B23H9/10 , B23H9/14 , G05B15/02 , G05B19/402 , G05B2219/25294 , G05B2219/35134 , G05B2219/45043 , G05B2219/45221 , Y02P90/265

6. 发明公开

EP3115141A1 PROCESSING PROGRAM-GENERATING METHOD, PATH-GENERATING DEVICE AND ELECTRICAL DISCHARGE MACHINE 有权
标题翻译： VERFAHREN ZUR ERZEUGUNG EINES VERARBEITUNGSPROGRAMMS，WEGGENERATOR UND FUNKENEROSIONSMASCHINE
公开(公告)号：EP3115141A1
公开(公告)日：2017-01-11
申请号：EP14884942.5
申请日：2014-03-06
申请人： Makino Milling Machine Co., Ltd.
发明人： HAMADA, Kyoichi , FUJITA, Kunio , SHIOMIZU, Takayuki
IPC分类号： B23H7/26 , B23H7/20 , G05B19/4093
CPC分类号： B23H7/20 , B23H1/02 , B23H7/26 , G05B19/4093 , G05B2219/45221 , Y02P90/265
摘要： To keep an electrode guide from interfering with an object such as a workpiece during the workpiece processing period, in the present invention, a path-generating device of an electrical discharge machine that is provided with an electrode guide for supporting a rod-shaped electrode is configured so as to be equipped with: a shape data-reading unit (51) for reading the initial shape of the workpiece prior to processing and a target shape of the workpiece; an electrode-path-generating section (53) for generating an electrode path for moving the electrode laterally on the basis of the target shape of the workpiece; and a guide path-generating section (54) for generating an electrode guide path, which avoids interference between the electrode guide and the workpiece, on the basis of the initial shape of the workpiece.
摘要翻译：为了在工件处理期间保持电极引导件不与物体（例如工件）干涉，在本发明中，设置有用于支撑棒状电极的电极引导件的放电机的路径产生装置是被配置为配备有用于在加工之前读取工件的初始形状和工件的目标形状的形状数据读取单元（51）电极路径生成部（53），用于根据所述工件的目标形状生成用于横向移动所述电极的电极路径; 以及用于根据工件的初始形状产生避免电极引导件和工件之间的干涉的电极引导路径的引导路径产生部分（54）。

7. 发明公开

EP2881204A1 REPLACEMENT DETERMINATION DEVICE FOR ELECTRICAL DISCHARGE MACHINING ELECTRODE AND REPLACEMENT DETERMINATION METHOD 有权
标题翻译： AUSTAUSCHBESTIMMUNGSVORRICHTUNGFÜREINE FUNKENEROSIONSBEARBEITUNGSELEKTRODE UND AUSTAUSCHBESTIMMUNGSVERFAHREN
公开(公告)号：EP2881204A1
公开(公告)日：2015-06-10
申请号：EP12882431.5
申请日：2012-07-31
申请人： Makino Milling Machine Co., Ltd.
发明人： HAMADA, Kyoichi , IGI, Nobuaki , HAZOME, Hiroshi
IPC分类号： B23H7/26
CPC分类号： B23H11/00 , B23H1/02 , B23H7/14 , B23H7/20 , B23H9/14 , Y10T29/53022
摘要： In order to solve the problem of being unable to precisely determine whether or not electrode replacement is required and the problem of the wear ratio of the electrode being set high for safety reasons and the electrode being replaced while still being usable, this replacement determination method determines whether or not replacement of an electrode (10) that sequentially electrical-discharge machines a plurality of throughholes (22) in a workpiece (20) is required. The replacement determination method: detects the remaining length (La) of the electrode (10); detects the electrical discharge commencement position, being the position of the electrode (10) when electrical discharge starts; detects the throughole position, being the position of the electrode (10) when the workpiece is pierced; sets the required length (Lb) for the electrode (10) as required for machining the next throughhole (22), on the basis of the difference (E) between the detected electrical discharge commencement position and the detected throughole position; compares the detected remaining length (La) and the set required length (Lb); and determines whether or not electrode replacement is required.
摘要翻译：为了解决无法精确地确定是否需要电极更换的问题，并且为了安全起见而将电极的磨损率设定得高，并且在仍然可用的情况下电极被更换的问题，该替换确定方法确定是否需要更换在工件（20）中依次放电加工多个通孔（22）的电极（10）。替换判定方法：检测电极（10）的剩余长度（La）; 检测放电开始位置，即放电开始时电极（10）的位置; 检测通孔位置，即当工件被刺穿时电极（10）的位置; 根据检测到的放电开始位置和检测到的通孔位置之间的差（E），根据加工下一个通孔（22）的要求设定电极（10）所需的长度（Lb）比较检测到的剩余长度（La）和设定的所需长度（Lb）; 并确定是否需要电极更换。

8. 发明授权

EP3115141B1 PROCESSING PROGRAM-GENERATING METHOD, PATH-GENERATING DEVICE AND ELECTRICAL DISCHARGE MACHINE 有权
公开(公告)号：EP3115141B1
公开(公告)日：2019-04-17
申请号：EP14884942.5
申请日：2014-03-06
申请人： Makino Milling Machine Co., Ltd.
发明人： HAMADA, Kyoichi , FUJITA, Kunio , SHIOMIZU, Takayuki
IPC分类号： B23H7/26 , B23H7/20 , G05B19/4093 , B23H1/02

9. 发明授权

EP2881204B1 REPLACEMENT DETERMINATION DEVICE FOR ELECTRICAL DISCHARGE MACHINING ELECTRODE AND REPLACEMENT DETERMINATION METHOD 有权
公开(公告)号：EP2881204B1
公开(公告)日：2018-09-26
申请号：EP12882431.5
申请日：2012-07-31
申请人： Makino Milling Machine Co., Ltd.
发明人： HAMADA, Kyoichi , IGI, Nobuaki , HAZOME, Hiroshi
IPC分类号： B23H9/14 , B23H7/20
CPC分类号： B23H11/00 , B23H1/02 , B23H7/14 , B23H7/20 , B23H9/14 , Y10T29/53022
摘要： In order to solve the problem of being unable to precisely determine whether or not electrode replacement is required and the problem of the wear ratio of the electrode being set high for safety reasons and the electrode being replaced while still being usable, this replacement determination method determines whether or not replacement of an electrode (10) that sequentially electrical-discharge machines a plurality of throughholes (22) in a workpiece (20) is required. The replacement determination method: detects the remaining length (La) of the electrode (10); detects the electrical discharge commencement position, being the position of the electrode (10) when electrical discharge starts; detects the throughole position, being the position of the electrode (10) when the workpiece is pierced; sets the required length (Lb) for the electrode (10) as required for machining the next throughhole (22), on the basis of the difference (E) between the detected electrical discharge commencement position and the detected throughole position; compares the detected remaining length (La) and the set required length (Lb); and determines whether or not electrode replacement is required.

10. 发明公开

EP2894000A1 ELECTRICAL DISCHARGE MACHINING METHOD AND ELECTRODE-GUIDE POSITION SETTING DEVICE 有权
标题翻译：一种用于处理放电及装置设定电极领导
公开(公告)号：EP2894000A1
公开(公告)日：2015-07-15
申请号：EP12884061.8
申请日：2012-09-07
申请人： Makino Milling Machine Co., Ltd.
发明人： HAMADA, Kyoichi , SHIOMIZU, Takayuki
IPC分类号： B23H7/20
CPC分类号： B23H7/18 , B23H1/00 , B23H7/20 , B23H7/34 , B23H9/10 , B23H9/14 , G05B15/02 , G05B19/402 , G05B2219/25294 , G05B2219/35134 , G05B2219/45043 , G05B2219/45221 , Y02P90/265
摘要： In order to solve the problem of an electrode guide interfering with the surface of an inclined workpiece in which a hole is to be formed, in the present invention, when performing electrical discharge machining on a workpiece via an electrical discharge machine (100) that has an electrode holder (7) and an electrode guide (8), a workpiece model (321) and an electrode-guide model (323) are generated in advance, an interference-start position at which the electrode-guide model (323) starts interfering with the workpiece model (321) when said electrode-guide model (323) is moved towards the workpiece model (321) along an axis line (CLa) is calculated, and a position obtained by moving the electrode-guide model (323) a prescribed distance away from the workpiece model (321), starting at the interference-start position, is set as an electrode-guide position. With the electrode guide (8) positioned at said electrode-guide position, the electrode holder (7) is moved downwards in order to move an electrode (10) downwards toward the workpiece surface, and electrical discharge machining is performed on the workpiece.

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