公开(公告)号：US5485065A

公开(公告)日：1996-01-16

申请号：US221572

申请日：1994-04-01

申请人： Akira Kaneko ,  Norikazu Iguchi ,  Takahiro Hayashida ,  Torao Takeshita ,  Yoshio Shinohara

发明人： Akira Kaneko ,  Norikazu Iguchi ,  Takahiro Hayashida ,  Torao Takeshita ,  Yoshio Shinohara

IPC分类号： G05D3/12 ,  G05B19/416 ,  H02P1/00

CPC分类号： G05B19/416 ,  G05B2219/43026 ,  G05B2219/43034 ,  G05B2219/43057

摘要： A position command method and apparatus for shortening the acceleration and deceleration times of a servo controlled apparatus by effectively utilizing the torque of the controlled apparatus. A value of speed per unit time is developed on the basis of speed and position data, and a constant speed or an acceleration or deceleration function processing may be selectably performed. In the position commanding method and its unit of the present invention, the deceleration stop distance of output speed is computed at all times or is held as a list data as described above and moreover is compared with a residual distance XR. Consequently, the deceleration stop distance does not have to coincide with the residual portion from the acceleration command, and the acceleration/deceleration curve alone can be realized in an independent form. Also, the speed change can be made smoother by correcting the cross point of independently formed acceleration and/or deceleration curves defining a corner section.

摘要翻译： 一种通过有效地利用受控装置的转矩来缩短伺服控制装置的加减速时间的位置指令方法和装置。 基于速度和位置数据开发每单位时间的速度值，并且可以可选地执行恒定速度或加速或减速功能处理。 在本发明的位置指令方法及其单元中，输出速度的减速停止距离一直被计算，或者如上所述被保持为列表数据，并且还与剩余距离XR进行比较。 因此，减速停止距离与加速指令的剩余部分不一致，单独的加速/减速曲线可以以独立的形式实现。 此外，通过校正限定角部的独立形成的加速度和/或减速曲线的交叉点，可以使速度变化更平滑。

公开(公告)号：US5117169A

公开(公告)日：1992-05-26

申请号：US622048

申请日：1990-12-04

申请人： Yoshiaki Kakino ,  Shigeaki Tokumo ,  Tetsuo Nakamura ,  Torao Takeshita

发明人： Yoshiaki Kakino ,  Shigeaki Tokumo ,  Tetsuo Nakamura ,  Torao Takeshita

IPC分类号： B23Q15/00 ,  G05B19/18 ,  G05B19/401 ,  G05B19/404

CPC分类号： G05B19/401 ,  G05B2219/37196 ,  G05B2219/37198 ,  G05B2219/37441 ,  G05B2219/50057

摘要： A numerical control (NC) device 10 for a machine tool 1 provided with a measurement probe 2b effects measurements of a work 4 on the machine table 5 after a working process. A measurement program, generated by the NC device by modifying a working program, controls the relative movement of the probe 2b with respect to the workpiece 4 such that the probe 2b moves along the contour of the worked portion of the workpiece 4 with a displacement from the neutral position thereof, wherein the displacement of the probe is sampled at a predetermined sampling period. A working error calculation program 17 calculates the working error from the sampled displacements. If the working error is judged correctable, a outside tolerance range and correction re-working is effected so as to reduce the working error. The measurement/re-working cycles are repeated until the working error is within tolerance.

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。