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1. 发明专利

JP2011206896A Machine and method for fine hole electric discharge machining 有权
标题翻译：用于精密电机放电加工的机器和方法
公开(公告)号：JP2011206896A
公开(公告)日：2011-10-20
申请号：JP2010078527
申请日：2010-03-30
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： OKANE MASAHIRO , NAKAGAWA TAKAYUKI , SUZUKI SATOSHI , ODA KIYOHITO
IPC分类号： B23H9/14 , B23H1/02 , B23H7/26
摘要： PROBLEM TO BE SOLVED: To provide a machine and a method for fine hole electric discharge machining, which can detect a slightly opened hole and a penetration of a hole when a hole machining is carried out, and can stably machine even the slightly opened hole.SOLUTION: The machine 1 for fine hole electric discharge machining has: a pipe-like electrode 2 injecting a machining liquid from its tip; a pulse generator 6 applying a pulse voltage including a group pulse between the electrode 2 and a workpiece 3, intermittently with a down time in between. The machine 1 applies the electric discharge machining to the workpiece 3 by generating electric discharge by the group pulse in a machining liquid intervening between the electrode 2 and the workpiece 3. The machine 1 is also has: a short-circuiting detector 7 detecting the generation of a short-circuiting between the electrode 2 and the workpiece 3; a short-circuiting frequency detector 8 detecting the generation frequency of the short-circuiting; and a machining controller 4 determining whether a hole under machining by the electric discharge machining is in an ordinary state of non-penetration, in a slightly opened state of partial penetration, or an complete penetration state, based on a detection result by the short-circuiting frequency detector 8.
摘要翻译：要解决的问题：提供一种用于细孔放电加工的机器和方法，其可以在进行孔加工时检测到稍微打开的孔和孔的穿透，并且即使是稍微打开的孔也能够稳定地加工。解决方案：用于细孔放电加工的机器1具有：管状电极2，其从其尖端喷射机械液体; 在电极2和工件3之间间歇地施加包括组脉冲的脉冲电压的脉冲发生器6。机器1通过在介于电极2和工件3之间的加工液中通过组脉冲发生放电来对放电加工进行放电加工。机器1还具有：检测发电的短路检测器7 电极2和工件3之间的短路; 检测短路的发电频率的短路频率检测器8; 以及加工控制器4，基于短路的检测结果，判断通过放电加工的加工孔是否处于普通不穿透状态，部分穿透稍微打开状态或完全穿透状态，电路频率检测器8。

2. 发明专利

JP2012051107A Electric discharge machining power supply apparatus and electric discharge machining method 审中-公开
标题翻译：电动放电加电设备和放电加工方法
公开(公告)号：JP2012051107A
公开(公告)日：2012-03-15
申请号：JP2011241017
申请日：2011-11-02
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SUZUKI SATOSHI , ODA KIYOHITO , NAKAMURA KAZUJI , GOTO AKIHIRO
IPC分类号： B23H1/02 , B23H7/16 , B23H9/14
CPC分类号： B23H1/024 , B23H1/02
摘要： PROBLEM TO BE SOLVED: To appropriately control pulses generated by an electric discharge machining power supply apparatus to further stabilize machining, and reduce an electrode wear amount when a short circuit occurs.SOLUTION: The electric discharge machining power supply apparatus machines an object to be machined by interrupting every predetermined time period pulse trains that are turned on and off at predetermined timing and supplying electric power to a machining gap between a machining electrode and the object to be machined. The electric discharging machining power supply apparatus includes: a short circuit detecting means for detecting a short circuit at the machining gap between the machining electrode and the object to be machined by applying a short circuit detecting pulse to the machining gap between the machining electrode and the object to be machined during a break period in the pulse trains; and a pulse halting means for stopping the generation of particular pulses in the pulse train so as to halt the power supply to the machining gap when the short circuit detecting means detects the occurrence of the short circuit at the machining gap.
摘要翻译：要解决的问题：为了适当地控制由放电加工电源装置产生的脉冲以进一步稳定加工，并且在短路发生时减少电极磨损量。解决方案：放电加工电源装置通过在每个预定时间段中断在预定定时打开和关闭的脉冲串来加工待加工物体，并且向加工电极和物体之间的加工间隙供电被加工。放电加热电源装置包括：短路检测装置，用于通过向加工电极和加工对象物之间的加工间隙施加短路检测脉冲来检测加工电极与被加工物之间的加工间隙的短路在脉冲列中断期间要加工的物体; 以及脉冲停止装置，用于当短路检测装置检测到在加工间隙发生短路时，停止产生脉冲序列中的特定脉冲，以停止对加工间隙的电力供应。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2011189441A Electric discharge machining device 有权
标题翻译：电动放料加工设备
公开(公告)号：JP2011189441A
公开(公告)日：2011-09-29
申请号：JP2010056702
申请日：2010-03-12
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： OKANE MASAHIRO , NAKAGAWA TAKAYUKI , SUZUKI SATOSHI , ODA KIYOHITO
IPC分类号： B23H1/02
摘要： PROBLEM TO BE SOLVED: To obtain an electric discharge machining device capable of shortening the machining time when machining a through-hole that has small diameter difference between the hole inlet and outlet, and performing the through-hole machining under a stable machining state. SOLUTION: The electric discharge machining device includes a short-circuit detecting circuit 11 for detecting that inter-electrode voltage is below short-circuit detection threshold value, an instability detection circuit 14 for detecting that the inter-electrode voltage is below the instability detection threshold value which is higher than the short-circuit detection threshold value, and a control circuit 12 for generating and outputting a signal to stop prescribed pulse generation in a pulse train and a signal to decelerate machining feed of an electrode for machining in order to stop supply of machining power to the inter-electrode when the inter-electrode voltage is higher than the short-circuit detection threshold value and also it is lower than the instability detection threshold value. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了获得能够缩短在孔入口和出口之间具有小直径差的通孔加工时的加工时间并且在稳定加工下进行通孔加工的放电加工装置州。解决方案：放电加工装置包括用于检测电极间电压低于短路检测阈值的短路检测电路11，用于检测电极间电压低于不稳定性检测阈值高于短路检测阈值;以及控制电路12，用于产生和输出停止脉冲串中的规定脉冲产生的信号，以及减少用于机械加工的电极的加工进给的信号当电极间电压高于短路检测阈值时，停止向电极间供给加工动力，并且低于不稳定性检测阈值。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2010064151A Small hole electric discharge machine and holding mechanism 审中-公开
标题翻译：小孔电动放电机及保持机构
公开(公告)号：JP2010064151A
公开(公告)日：2010-03-25
申请号：JP2008229747
申请日：2008-09-08
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SUZUKI SATOSHI , ODA KIYOHITO
IPC分类号： B23H7/26 , B23H7/24 , B23H9/14
摘要： PROBLEM TO BE SOLVED: To provide a small hole electric discharge machine capable of stable machining.
SOLUTION: The small hole electric discharge machine rotates a rod-like or tubular electrode while holding it with an electrode holder and makes it face a workpiece through an electrode guide supporting an electrode position in the vicinity of the workpiece to thereby drill a hole in the workpiece, wherein the electrode holder has a hard coating formed on an electrode holding surface thereof and the electrode guide has a lubricating coating formed on an electrode support surface thereof.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供能够稳定加工的小孔放电加工机。解决方案：小孔放电机旋转杆状或管状电极，同时用电极夹持器将其保持并使其通过支撑工件附近的电极位置的电极引导件对着工件，从而钻出孔，其中电极保持器具有形成在其电极保持表面上的硬涂层，并且电极引导件具有形成在其电极支撑表面上的润滑涂层。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2011093094A 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：JP2011093094A
公开(公告)日：2011-05-12
申请号：JP2011033200
申请日：2011-02-18
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SUZUKI SATOSHI , ODA KIYOHITO , NAKAMURA KAZUJI , GOTO AKIHIRO
IPC分类号： B23H1/02 , B23H9/14
CPC分类号： B23H1/024 , B23H1/02
摘要： PROBLEM TO BE SOLVED: To stabilize machining by properly controlling the generation a pulse of a power supply device for electric discharge machining at the generation of a short circuit, and to reduce the consumption of an electrode.
SOLUTION: An electric discharge machining device machines a workpiece by supplying power to a machining space between a machining electrode and the workpiece by allowing a pulse row which is turned on/off at predetermined timing to be intermittent at each predetermined period of time. The electric discharge machining device includes a short circuit detection means for detecting the short circuit in the machining space between the machining electrode and the workpiece; and a pulse stop means in which, when the generation of the short circuit is detected in the machining space by the short circuit detection means, at least one pulse supplies the power to the machining space, and thereafter, stops the generation of a predetermined pulse in the pulse row.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过适当地控制在产生短路时产生用于放电加工的电源装置的脉冲并且减少电极的消耗来稳定加工。解决方案：放电加工装置通过在预定时间段允许在预定定时打开/关闭的脉冲行间歇地在加工电极和工件之间的加工空间中供电来对工件进行加工。放电加工装置包括用于检测加工电极和工件之间的加工空间中的短路的短路检测装置; 以及脉冲停止装置，其中当通过短路检测装置在加工空间中检测到短路的产生时，至少一个脉冲向加工空间供电，然后停止产生预定的脉冲在脉冲行。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2009262245A Small hole electric discharge machining device 有权
标题翻译：小孔电动放电加工设备
公开(公告)号：JP2009262245A
公开(公告)日：2009-11-12
申请号：JP2008111556
申请日：2008-04-22
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SUZUKI SATOSHI , ODA KIYOHITO , YOKOI IWAO , GOTO AKIHIRO
IPC分类号： B23H7/26 , B23H9/14
摘要： PROBLEM TO BE SOLVED: To provide a small hole electric discharge machining device performing highly accurate slot machining.
SOLUTION: The small hole electric machining device includes: a linear guide 22 disposed on a base 27 in a vertical direction; a spindle head 23 supported by the linear guide 22 to move in a vertical direction, having an electrode holder 23b, and fed in a vertical direction by a head feeder 24; and an electrode guide 25a supported by the linear guide 22 in the lower part of the spindle head 23 to move in a vertical direction, positioned in the vicinity of a workpiece 15 by an electrode guide feeder 26, and guides the lower part of a small hole electrode 29 retained by the electrode holder 23b in an upper end part in the vicinity of the workpiece 15.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种执行高精度槽加工的小孔放电加工装置。解决方案：小孔电加工装置包括：沿垂直方向设置在基座27上的直线导轨22; 由直线引导件22支撑以沿垂直方向移动的主轴头23，具有电极夹持器23b，并通过头部进给器24在垂直方向上进给; 以及由主轴头23的下部的直线引导件22支撑的电极引导件25a，其通过电极引导件26位于工件15附近，沿垂直方向移动，并且引导小的孔电极29由电极保持件23b保持在工件15附近的上端部。版权所有（C）2010，JPO＆INPIT

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