公开(公告)号：US06759825B2

公开(公告)日：2004-07-06

申请号：US10212815

申请日：2002-08-07

申请人： Makoto Fujishima

发明人： Makoto Fujishima

IPC分类号： G05D23275

CPC分类号： G05B19/404 ,  G05B2219/41036 ,  G05B2219/41078 ,  G05B2219/42298 ,  G05B2219/49195

摘要： The invention concerns a feed system control method and apparatus that can calculate an accurate backlash amount and can accomplish highly precise position control. Position errors are calculated before and after a reversal in direction of movement of a slide 30, each from the difference between the position data of the slide 30 detected by a linear scale 25 and the position data of the slide 30 calculated from the rotational position data of the servo motor 23 detected by a rotary encoder 24. The backlash amount of the slide 30 is calculated from the difference between the position error before the reversal and the position error after the reversal thus calculated. Thereafter, when reversing the direction of movement of the slide 30, the feed speed during direction reversal is increased in accordance with the backlash amount.

摘要翻译： 本发明涉及能够计算精确的间隙量并可以实现高精度位置控制的进料系统控制方法和装置。 在滑块30的移动方向反转之前和之后计算位置误差，每个滑块30根据由线性刻度25检测到的滑块30的位置数据与根据旋转位置数据计算的滑块30的位置数据之间的差值 由旋转编码器24检测出的伺服马达23的滑移量，根据反转前的位置误差和如此计算出的反转后的位置误差之间的差计算出滑块30的间隙量。 此后，当反转滑块30的移动方向时，根据间隙量增加方向反转时的进给速度。

公开(公告)号：US6140783A

公开(公告)日：2000-10-31

申请号：US191176

申请日：1998-11-13

申请人： Makoto Fujishima

发明人： Makoto Fujishima

IPC分类号： H02P1/22 ,  G11B17/028 ,  G11B19/20 ,  H02P6/20 ,  H02P1/40 ,  G05B11/01 ,  G05B13/00

CPC分类号： G11B19/20

摘要： In a method of controlling a disk driving motor having a rotor to which disks are loaded, an improvement comprises the step of, when the recording/reproducing is performed with respect to a disk, rotating the rotor in a reverse direction by one of a predetermined rotational angle and for a predetermined time during the period from the time the rotor stops rotating in a normal direction to the time the rotor is again driven in the normal direction. A control device for a disk driving motor in accordance with the method is also disclosed.

摘要翻译： 在一种控制具有装载有盘的转子的盘驱动电动机的方法中，改进包括以下步骤：当相对于盘执行记录/再现时，使转子沿相反方向旋转预定的 从转子停止在法线方向转动到转子再次向正常方向驱动的时间期间的预定时间。 还公开了一种根据该方法的盘驱动电机的控制装置。

公开(公告)号：US5057725A

公开(公告)日：1991-10-15

申请号：US456301

申请日：1989-12-26

申请人： Shigeru Kasai ,  Susumu Kobayashi ,  Makoto Fujishima

发明人： Shigeru Kasai ,  Susumu Kobayashi ,  Makoto Fujishima

IPC分类号： H02K29/00 ,  G11B19/20 ,  H02K7/09

CPC分类号： H02K7/09 ,  G11B19/2009 ,  Y10S310/06

摘要： A rotary electric machine comprising a stator and a rotor arranged opposedly of the stator. A magnet is provided on the stator or a frame for holding the stator at a position so as to be constantly opposed during rotation to a portion of the magnetic body of the rotor. The magnet is disposed at a position other than at a portion at which the magnetic action for rotation of the rotor occurs. The rotor is therefore constantly biased so that rotor play is minimized and non-repeatable deflections of the spindle are eliminated.

摘要翻译： 一种旋转电机，包括定子和与定子相对设置的转子。 在定子上设置有磁铁或用于将定子保持在转动到转子的磁体的一部分的状态下始终相对的位置的框架。 磁体设置在除了转子的旋转磁力发生的部分以外的位置。 因此，转子被恒定地偏置，使得转子的摆动被最小化并且不会重复主轴的偏转。

公开(公告)号：US08600542B2

公开(公告)日：2013-12-03

申请号：US12960763

申请日：2010-12-06

申请人： Makoto Fujishima ,  Hideki Takedomi

发明人： Makoto Fujishima ,  Hideki Takedomi

IPC分类号： G06F19/00

CPC分类号： G05B19/4155 ,  G05B19/4067 ,  G05B2219/50104

摘要： A machine tool controlled to restart automatic operation for machining a workpiece from an interrupted point after the machine tool, which has been automatically operated by NC program commands, is caused to interrupt the automatic operation. The NC program commands are classified into a plurality of main groups with respect to the contents of motions for changing the machine state of the machine tool. When the automatic operation of the machine tool restarts after the automatic operation has been interrupted halfway, an order of execution of the NC program commands is determined such that the main groups are arranged in a prescribed order of execution, for automatically generating a machine state restoration command. The automatic operation of the machine tool can restart from the interrupted point without the need for the operator to manually generate or correct a command for restoring the machine tool to its machine.

摘要翻译： 由NC程序命令自动运行的机床之后，控制的机床重新开始自动操作，从中断点加工工件，使其中断自动运行。 关于用于改变机床的机器状态的运动内容，NC程序命令被分为多个主组。 当在半自动操作中断后机床的自动操作重新启动时，确定NC程序命令的执行顺序使得主组按规定的执行顺序排列，用于自动生成机器状态恢复 命令。 机床的自动操作可以从中断点重新启动，无需操作员手动生成或更正用于将机床恢复到其机器的命令。

公开(公告)号：US06917418B2

公开(公告)日：2005-07-12

申请号：US10395203

申请日：2003-03-25

申请人： Makoto Fujishima ,  Masao Kanamoto

发明人： Makoto Fujishima ,  Masao Kanamoto

IPC分类号： G01B11/00 ,  B23Q17/24 ,  G01B11/27 ,  G01B11/26

CPC分类号： G01B11/272 ,  B23Q17/24

摘要： An accuracy analyzing apparatus 1 comprises: a light projector 2 attached to a main spindle 26 for emitting a light beam having a light axis coaxial with the axis of the main spindle 26; a semitransparent mirror 3 which transmits part of the emitted light beam and reflects other part; a first imaging device 4a for receiving the transmitted light beam; a second imaging device 4b for receiving the reflected light beam; and an analyzer 10 which calculates light receiving positions in the first and second imaging devices 4a and 4b, which estimates the light receiving position where the reflected light beam is to be received by the second imaging device 4b in the case where it is assumed that the axis of the main spindle 26 coincides with the first axis, and which compares the estimated light receiving position with the calculated light receiving position to analyze the perpendicularity of the axis of the main spindle 26.

摘要翻译： 精度分析装置1包括：安装在主轴26上的光投射器2，用于发射具有与主轴26的轴线同轴的光轴的光束; 透射部分发射光束并反射其他部分的半透明镜3; 用于接收透射光束的第一成像装置4a; 用于接收反射光束的第二成像装置4b; 以及分析器10，其计算在第一和第二成像装置4a和4b中的光接收位置，其估计在第二成像装置4b的情况下由第二成像装置4b接收反射光束的光接收位置 假设主轴26的轴线与第一轴线重合，并且将估计的光接收位置与计算的光接收位置进行比较，以分析主轴26的轴线的垂直度。

公开(公告)号：US06551033B2

公开(公告)日：2003-04-22

申请号：US09771815

申请日：2001-01-29

申请人： Yoshiaki Kakino ,  Makoto Fujishima ,  Hisashi Otsubo ,  Hideo Nakagawa ,  Torao Takeshita ,  Yoshinori Yamaoka

发明人： Yoshiaki Kakino ,  Makoto Fujishima ,  Hisashi Otsubo ,  Hideo Nakagawa ,  Torao Takeshita ,  Yoshinori Yamaoka

IPC分类号： B23B3904

CPC分类号： B23G1/16 ,  G05B19/186 ,  G05B2219/37344 ,  G05B2219/42311 ,  G05B2219/45216 ,  G05B2219/50328 ,  Y10T82/10 ,  Y10T82/2502 ,  Y10T408/08 ,  Y10T408/165

摘要： A CNC tapping machine includes a spindle to which a tap is attached and a spindle motor for rotating the spindle. The load torque acting on the spindle motor that is detected when performing a tapping procedure without a workpiece is stored in a memory as referential, torque data. During a tapping procedure, a detection device detects the load torque acting on the spindle motor. A computer computes the difference between the load torque defected by the detection device and the referential load torque and uses the difference as the cutting load acting on the tap. As a result, the cutting load torque acting on the tap is accurately detected.

摘要翻译： 一台数控攻丝机包括一个主轴和一个主轴电机，用于旋转主轴。 作用在主轴电机上的负载力矩在执行没有工件的攻丝过程时被检测到作为参考转矩数据存储在存储器中。 在攻丝过程中，检测装置检测作用在主轴电机上的负载转矩。 计算机计算由检测装置缺陷的负载扭矩与参考负载转矩之间的差异，并将该差值用作作用在水龙头上的切割负载。 结果，精确地检测作用在水龙头上的切割负载扭矩。

公开(公告)号：US06437534B1

公开(公告)日：2002-08-20

申请号：US09657592

申请日：2000-09-08

申请人： Yoshiaki Kakino ,  Makoto Fujishima ,  Hisashi Otsubo ,  Hideo Nakagawa ,  Yoshinori Yamaoka ,  Torao Takeshita

发明人： Yoshiaki Kakino ,  Makoto Fujishima ,  Hisashi Otsubo ,  Hideo Nakagawa ,  Yoshinori Yamaoka ,  Torao Takeshita

IPC分类号： G05B1918

CPC分类号： G05B19/4166 ,  G05B2219/42073 ,  G05B2219/50107

摘要： A control method for an NC machine tool is provided which ensures a high precision of the contouring control, and allows for extension of the drill life, and reduction in machining time. The control method comprises: generating an operation command signal on the basis of the machining program and a time constant; generating a velocity command signal by multiplying a deviation of a present position signal fed back from the feed drive system (106) from the generated operation command signal by a position loop gain; generating an electric current command signal by multiplying a deviation of a present velocity signal fed back from the feed drive system (106) from the generated velocity command signal by a velocity loop gain; and controlling a drive motor of the feed drive system (106) on the basis of the generated electric current command signal for driving thereof, wherein a machining mode is determined from the machining program and, if the machining mode is a drilling mode, at least one of the operation command signal, the velocity command signal and the electric current command signal is modified when the feed drive system (106) is driven to be retracted opposite to a drilling feed direction.

摘要翻译： 提供了一种用于NC机床的控制方法，其确保轮廓控制的高精度，并且允许延长钻头寿命并减少加工时间。 该控制方法包括：基于加工程序产生一个操作命令信号和一个时间常数; 通过将从所述进给驱动系统（106）反馈的当前位置信号与所生成的操作命令信号的偏差乘以位置环增益来产生速度指令信号; 通过将从所述进给驱动系统（106）反馈的当前速度信号与所生成的速度指令信号的偏差乘以速度环增益来产生电流指令信号; 并根据所产生的电流指令信号来控制进给驱动系统（106）的驱动电动机，其中，从加工程序确定加工模式，如果加工模式是钻孔模式，至少 当进给驱动系统（106）被驱动以与钻进方向相反地缩回时，操作命令信号，速度指令信号和电流指令信号之一被修改。

公开(公告)号：US06384560B1

公开(公告)日：2002-05-07

申请号：US09657591

申请日：2000-09-08

申请人： Yoshiaki Kakino ,  Makoto Fujishima ,  Hisashi Otsubo ,  Hideo Nakagawa ,  Yoshinori Yamaoka ,  Torao Takeshita

发明人： Yoshiaki Kakino ,  Makoto Fujishima ,  Hisashi Otsubo ,  Hideo Nakagawa ,  Yoshinori Yamaoka ,  Torao Takeshita

IPC分类号： G06F1546

CPC分类号： G05B19/404 ,  B23Q17/0961 ,  G05B2219/41376 ,  G05B2219/42289 ,  G05B2219/50276 ,  Y10T408/14

摘要： An abnormality detection apparatus for a tool (11) is described for judging abnormalities of a tool by a uniformly set threshold value in relation to a cutting load even in a machining process wherein a feed rate changes every moment. The abnormalities of the tool can be judged by the uniformly set threshold value on the basis of the tool load wherefrom the feed load that fluctuates upon the feed rate has been removed.

摘要翻译： 描述了用于工具（11）的异常检测装置，用于通过相对于切割负载均匀设定的阈值来判断刀具的异常，即使在进给速度每一刻都在改变的加工过程中。 可以通过均匀设定的阈值来判断刀具的异常，这是基于刀具负载，其中进给速度随着进给速率而波动的进给负载被去除。

公开(公告)号：US06344724B1

公开(公告)日：2002-02-05

申请号：US09657628

申请日：2000-09-08

申请人： Yoshiaki Kakino ,  Makoto Fujishima ,  Hisashi Otsubo ,  Hideo Nakagawa ,  Yoshinori Yamaoka ,  Torao Takeshita

发明人： Yoshiaki Kakino ,  Makoto Fujishima ,  Hisashi Otsubo ,  Hideo Nakagawa ,  Yoshinori Yamaoka ,  Torao Takeshita

IPC分类号： G05B1918

CPC分类号： G05B19/4065 ,  G05B19/404 ,  G05B2219/37586 ,  G05B2219/42282 ,  G05B2219/42289 ,  G05B2219/49047

摘要： A numerical control apparatus (1 or 20) comprising pecking operation controlling means (12) which make a feed drive system (14) retracted when a cutting load detected by cutting load detecting means (7) exceeds a reference value during a drilling process, the cutting load detecting means (7) comprise a bite load detecting section (8) to detect the cutting load at a biting stage wherein a tool bites a work piece, and a stationary load detecting section (10) to detect the cutting load after the biting stage. The numerical control apparatus (1 or 20) comprises pecking judgement means (11) to judge that the feed drive system (14) should be retracted when a fluctuation load exceeds a specified reference value wherein the fluctuation load is obtained by reducing the bite load from the detected stationary load. When it is judged that the feed drive system (14) should be retracted, the pecking operation controlling means (12) make the feed drive system (14) retracted.

摘要翻译： 1.一种数控装置（1或20），其特征在于，包括啄食运转控制装置（12），当在切削负荷检测装置（7）检测出的切削负荷在钻孔过程中超过参考值时，使进给驱动系统（14）缩回， 切割负荷检测装置（7）包括咬入负载检测部（8），用于检测在工具咬住工件的咬合阶段的切割负荷;以及固定负载检测部（10），用于检测咬合后的切割负荷 阶段。 数值控制装置（1或20）包括啄食判断装置（11），当变动负载超过规定的参考值时，判断进给驱动系统（14）应该被收回，其中通过减少咬合负荷 检测到的固定负载。 当判断进给驱动系统（14）应该缩回时，啄食操作控制装置（12）使进给驱动系统（14）缩回。

公开(公告)号：US08180477B2

公开(公告)日：2012-05-15

申请号：US12554553

申请日：2009-09-04

申请人： Masahiko Mori ,  Xiaodong Tian ,  Bingyan Zhao ,  Makoto Fujishima ,  Zhe Jin

发明人： Masahiko Mori ,  Xiaodong Tian ,  Bingyan Zhao ,  Makoto Fujishima ,  Zhe Jin

IPC分类号： G06F19/00 ,  G05B19/04 ,  G06K9/00 ,  G06T17/00

CPC分类号： G05B19/406 ,  G05B2219/37563 ,  G05B2219/50064

摘要： A machining status monitoring apparatus is provided on a machine tool, and has an actual CCD camera for imaging the tool and the workpiece and generating actual two-dimensional image data thereof, a virtual image generating section having a virtual CCD camera corresponding to the actual CCD camera, in which the tool and workpiece of three-dimensional model are imaged by the virtual CCD camera and virtual two-dimensional image data thereof are generated, and a display control section for receiving from a control device of the machine tool, information relating to the coolant supply state and checking whether coolant is being supplied to the contact portion of the tool and the workpiece, and displaying on a display device actual two-dimensional image data when coolant is not being supplied and displaying on the display device virtual two-dimensional image data when coolant is being supplied.

摘要翻译： 在机床上设置加工状态监视装置，具有用于对工具和工件进行成像并生成其实际的二维图像数据的实际CCD照相机，具有与实际CCD对应的虚拟CCD照相机的虚拟图像生成部 摄像机，其中通过虚拟CCD摄像机对三维模型的工具和工件进行成像，并生成虚拟二维图像数据，以及显示控制部分，用于从机床的控制装置接收与 冷却剂供给状态，并检查是否向工具和工件的接触部分供应冷却液，并且当不提供冷却剂时在显示装置上显示实际的二维图像数据，并且在显示装置上显示虚拟的二维 当供应冷却液时的图像数据。