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1. 发明授权

US5319288A Main spindle rotation control method 失效
标题翻译：主轴旋转控制方式
公开(公告)号：US5319288A
公开(公告)日：1994-06-07
申请号：US13172
申请日：1993-01-29
申请人： Shinichi Kono , Masaaki Fukukura
发明人： Shinichi Kono , Masaaki Fukukura
IPC分类号： G05B19/18 , G05B19/416 , H02P7/00
CPC分类号： G05B19/182 , G05B19/416 , G05B2219/50216 , G05B2219/50234 , G05B2219/50387
摘要： A main spindle rotation control method capable of preventing a workpiece from being twisted during the delivery of the workpiece between two main spindles of a machine. When the rotating speeds of first and second main spindles (100, 200) reach a synchronous rotating velocity as a result of a speed loop control executed by velocity control sections (111, 211) of first and second spindle control circuits (110, 210), position loop control is executed by position control sections (112, 212) of these control circuits, and each main spindle is driven to be decelerated in accordance with the rotational phase of each main spindle, and the velocity loop control is then executed again, to bring the main spindles to rotate in the same phase and at the same synchronous rotating speed. When the delivery of the workpiece (300) between the main spindles is started under this condition, integral control in both the velocity control sections is invalidated. Thus, even if a difference is present between the rotating speeds of the two main spindles at the start of the workpiece delivery, due to fluctuations in the main spindle rotating speeds, a difference between torque commands from the velocity control sections, attributable to the difference between the main spindle rotating speeds, never be gradually increased by the integral control, to thereby prevent the workpiece from being twisted.
摘要翻译：一种主轴旋转控制方法，其能够防止工件在机器的两个主轴之间传送期间扭曲。当由第一和第二主轴控制电路（110,210）的速度控制部分（111,211）执行的速度环控制，第一和第二主轴（100,200）的转速达到同步转速时，，通过这些控制电路的位置控制部（112,212）执行位置环控制，并且根据各主轴的转动相位使每个主轴被驱动减速，然后再次执行速度环控制，使主轴在相同的相位和相同的同步转速下旋转。当在这种条件下启动主轴之间的工件（300）的输送时，两个速度控制部分的积分控制无效。因此，即使在工件传送开始时两个主轴的旋转速度之间存在差异，由于主轴转速的波动，来自速度控制部的转矩指令之间的差异归因于差异在主轴转速之间，通过积分控制不会逐渐增加，从而防止工件扭曲。

2. 发明授权

US5267142A Method for phase-synchronized spindle rotation control 失效
标题翻译：相位同步主轴旋转控制方法
公开(公告)号：US5267142A
公开(公告)日：1993-11-30
申请号：US623446
申请日：1990-12-20
申请人： Shinichi Kono , Masaaki Fukukura
发明人： Shinichi Kono , Masaaki Fukukura
IPC分类号： G05B19/416 , G05B13/02 , G05B11/18 , G05B11/32
CPC分类号： G05B19/416 , G05B2219/50234 , G05B2219/50387
摘要： A spindle rotation control method is provided capable of driving two spindles of a machine at the same speed with the same rotational phase. In response to a synchronizing control command from a numerical control apparatus, speed control is performed based on first and second speed commands calculated by using equations represented as a function of a synchronous speed command and parameters determined by the arrangement of a spindle rotational control system. When rotational speeds of the spindles reach the synchronous (same) rotational speed, first and second position deviation quantities corresponding to the synchronous rotational speed are calculated by using an equation represented as a function of a position control gain, and speed commands are converted into first and second moving commands, so as to perform position control loop processing based on the moving commands and the first and second spindle rotational quantities, and speed control based on a position control loop output. In response to input of a phase synchronizing control command, calculated values of rotational phases corresponding to the first and second rotational quantities measured from time points at which one-revolution signals for the first and second spindles are generated are subtracted from the position deviation quantities for the spindles, to decrease the rotational speeds of the spindles, so that rotational phases of the spindles reach the same phase as one another.
摘要翻译： PCT No.PCT / JP90 / 00506 Sec。 371 1990年12月20日第 102（e）1990年12月20日日期PCT提交1990年4月18日PCT公布。出版物WO90 / 12674 日本1990年11月1日。主轴旋转控制方法能够以相同的旋转相位以相同的速度驱动机器的两个主轴。响应于来自数字控制装置的同步控制命令，基于通过使用由同步速度命令的函数表示的等式计算的第一和第二速度指令以及由主轴旋转控制系统的布置确定的参数来执行速度控制。当主轴的转速达到同步（相同）转速时，通过使用表示为位置控制增益的函数的方程来计算与同步转速对应的第一和第二位置偏差量，速度指令被转换为第一和第二移动命令，以便基于移动命令和第一和第二主轴旋转量执行位置控制循环处理，以及基于位置控制循环输出的速度控制。响应于相位同步控制命令的输入，从产生用于第一和第二主轴的一次旋转信号的时间点测量的与第一和第二旋转量相对应的旋转相位的计算值从位置偏差量中减去主轴，以降低主轴的转速，使得主轴的旋转相位达到彼此相同的相位。

3. 发明授权

US5093972A Tapping control unit 失效
标题翻译：起吊控制单元
公开(公告)号：US5093972A
公开(公告)日：1992-03-10
申请号：US635493
申请日：1991-01-02
申请人： Masahiro Kaku , Shinichi Kono , Masaaki Fukukura
发明人： Masahiro Kaku , Shinichi Kono , Masaaki Fukukura
IPC分类号： B23G1/16 , B23G1/18 , B23Q15/00 , G05B19/18
CPC分类号： B23G1/18 , G05B19/186 , G05B2219/45216 , Y10T29/5114 , Y10T408/165 , Y10T408/17
摘要： A control unit capable of driving a compound lathe so that an end face of a rotating workpiece can be tapped. The control unit (100) comprises first and second control circuits (110, 120) for controlling the rotation of first and second spindles (10, 20) respectively fitted with the workpiece (60) and a tapper (70). At start of tapping operation, the second control circuit executes position loop control in accordance with a deviation (.epsilon.) between position feedback signals (PCC1, PCC2) related to the two spindles, thereby equalizing rotational speeds of the two spindles, and then causes the second spindle to rotate at a speed higher than that of the first spindle by a tapping speed in accordance with the deviation (.epsilon.) between the feedback signal (PCC2) and the sum of the feedback signal (PCC1) and a tapping speed command (Vc) supplied from a host control unit (40), and causes the second spindle to move axially at a speed which depends on the tapping speed and a tapping pitch, thereby tapping the end face of the rotating workpiece. After completion of the tapping operation, the second spindle is reversely rotated and retreated so that the tapper is disengaged from the workpiece.
摘要翻译： PCT No.PCT / JP90 / 00603 Sec。 371 1990年1月2日第 102（e）1990年1月2日PCT PCT 1990年5月11日PCT公布。出版物WO90 / 14192 日期：1990年11月29日。一种能够驱动复合车床使得旋转工件的端面能够被敲击的控制单元。控制单元（100）包括用于控制分别装配有工件（60）的第一和第二主轴（10,20）和分条（70）的旋转的第一和第二控制电路（110,120）。在开始敲击操作时，第二控制电路根据与两个主轴相关的位置反馈信号（PCC1，PCC2）之间的偏差（ε）执行位置环控制，从而平衡两个主轴的转速，然后使第二主轴根据反馈信号（PCC2）与反馈信号（PCC1）和点火速度指令（VcC1）的和之间的偏差（ε），通过攻丝速度以比第一主轴高的速度旋转），并且使第二主轴以取决于攻丝速度和攻丝间距的速度轴向移动，从而敲击旋转工件的端面。在完成攻丝操作之后，第二个主轴被反向旋转和退回，从而使分纸器与工件脱开。

4. 发明授权

US5519297A Spindle positioning method 失效
标题翻译：主轴定位方法
公开(公告)号：US5519297A
公开(公告)日：1996-05-21
申请号：US133127
申请日：1993-10-13
申请人： Shinichi Kono , Masaaki Fukukura
发明人： Shinichi Kono , Masaaki Fukukura
IPC分类号： B23Q5/58 , B23Q15/26 , G05B19/23 , G05D3/12 , G05B11/18
CPC分类号： G05B19/232 , G05B2219/42104
摘要： A spindle positioning method for high-speed positioning of a spindle by making the best use of the decelerating capability of a spindle motor. When a fixed-position stop command is generated while the operation of the spindle motor is controlled according to speed control, the motor rotation speed is reduced in accordance with the speed control to a speed N lower than or equal to a maximum rotational speed N1, which defines a constant torque region, and a control mode is switched from the speed control mode to position control mode at a point where the rotational speed is reduced to the speed N. Simultaneously, a value specifying the relation between the present position and target stop position of the motor with respect to one revolution of the spindle is set in an error counter as an initial position deviation. To carry out linear acceleration/deceleration control thereafter up to a final stop position, a position feedback quantity Pf is supplied from the position detector to the error counter, to obtain a speed command Vcmd, which is transferred to a speed loop process.
摘要翻译： PCT No.PCT / JP93 / 00092 Sec。 371日期：1993年10月13日 102（e）1993年10月13日PCT 1993年1月26日PCT PCT。公开号WO93 / 15876 日期：1993年8月19日。主轴定位方法通过主轴电机的减速能力得到最佳的高速定位。当根据速度控制来控制主轴电动机的操作时产生固定位置停止命令时，根据速度控制将电动机转速降低到低于或等于最大转速N1的速度N，其定义恒定转矩区域，并且在转速降低到速度N的点处，将控制模式从速度控制模式切换到位置控制模式。同时，指定当前位置和目标停止之间的关系的值相对于主轴一转的电动机的位置作为初始位置偏差设定在误差计数器中。为了进行直线加减速控制，直到最终停止位置，位置反馈量Pf从位置检测器提供给误差计数器，以获得传递到速度环路过程的速度指令Vcmd。

5. 发明授权

US5471126A Slip frequency control method for induction motors 失效
标题翻译：感应电机滑差控制方法
公开(公告)号：US5471126A
公开(公告)日：1995-11-28
申请号：US181873
申请日：1994-01-13
申请人： Shinichi Kono , Masaaki Fukukura
发明人： Shinichi Kono , Masaaki Fukukura
IPC分类号： H02P27/06 , H02P21/08 , H02P7/00
CPC分类号： H02P21/09
摘要： A slip frequency control method for induction motors, capable of achieving accurate control and excellent in control response.To effect determination of a slip frequency (fs) and an excitation magnetic flux frequency (.omega.0) by software processing to reduce a control error and a control delay caused if hardware elements are employed for the determination of these parameters, a vector control processor divides, in a speed control routine (101-104), the sum of a slip frequency, obtained by dividing the product of a secondary current command (I2) and a proportional constant (K2) by an excitation magnetic flux command (.PHI.), and a remainder (.alpha.') in the preceding routine by a routine executing frequency (CV), so as to derive a slip amount (A) and a remainder (.alpha.) in the present routine. In a current control routine (201 to 205) executed at intervals of a period shorter than that of the speed control routine, the processor divides the sum of the derived slip amount and the remainder (.beta.') in the preceding routine by the number (n) of execution of the current control, to thereby derive slip distribution data (.omega.s) and a remainder (.beta.) in the present current control routine, and further adds data (.omega.r) indicative of an actual motor speed to the derived slip distribution data, to thereby derive an excitation magnetic flux frequency (.omega.0).
摘要翻译：一种用于感应电动机的滑差频率控制方法，能够实现精确的控制和优异的控制响应。矢量控制处理器通过软件处理来确定滑移频率（fs）和激励磁通频率（ω-0）以减少控制误差以及如果使用硬件元件来确定这些参数的控制延迟，则矢量控制处理器将在速度控制程序（101-104）中，通过将次级电流指令（I2）与比例常数（K2）的乘积除以激励磁通指令（PHI）而得到的转差频率之和和通过例程执行频率（CV）在前一程序中的余数（α'），从而导出本例程中的滑移量（A）和余数（α）。在以比速度控制程序短的周期的间隔执行的当前控制例程（201〜205）中，处理器将前一程序中的导出滑移量与余数（β'）的和除以数量（ n）执行当前控制，从而导出当前电流控制程序中的滑动分布数据（ω）和余数（β），并且还将表示实际电动机速度的数据（ωr）添加到导出单元分布数据，从而导出激励磁通频率（ω0）。

6. 发明授权

US5083066A Method of controlling synchronous operation of machine tool 失效
标题翻译：控制机床同步运行的方法
公开(公告)号：US5083066A
公开(公告)日：1992-01-21
申请号：US460105
申请日：1990-02-09
申请人： Katsuo Kohari , Shinichi Kono , Masaaki Fukukura
发明人： Katsuo Kohari , Shinichi Kono , Masaaki Fukukura
IPC分类号： H02P5/52 , G05B19/18 , H02P5/50
CPC分类号： H02P5/50 , G05B19/182 , G05B2219/42104 , G05B2219/50221 , G05B2219/50234 , G05B2219/50387
摘要： In a machine tool having first and second spindles, which are connected to respective spindle motors and control circuits each control circuit including a velocity controller and a position controller, and which simultaneously grasp the same workpiece, in which state the workpiece is subjected to machining. At such time, a digital velocity command provided by, e.g., a numerical control unit, is supplied to the two spindles simultaneously, switches for isolating the position controller from the velocity controller at each spindle is controlled at the respective spindle, a synchronous operation mode, which changes over the velocity command to a position command, is established, and the digital velocity command value is processed as a position command, whereby the two spindles are subjected to identical positional control. As a result, the rpm's of the spindles are synchronized and the workpiece can be machined and separated into two parts without subjecting it to excessive force.
摘要翻译： PCT No.PCT / JP89 / 00779 Sec。 371日期1990年2月9日 102（e）1990年2月9日PCT PCT 1989年7月28日PCT公布。出版物WO90 / 01829 日期1990年02月22日。在具有第一和第二主轴的机床中，其连接到相应的主轴电机和控制电路，每个控制电路包括速度控制器和位置控制器，并同时抓住相同的工件，在该状态下对工件进行加工。此时，由数控单元提供的数字速度指令同时被提供给两个主轴，用于将位置控制器与每个主轴处的速度控制器隔离的开关被控制在相应的主轴处，同步操作模式，将速度指令改变为位置指令，并将数字速度指令值作为位置指令进行处理，由此使两个主轴进行相同的位置控制。因此，主轴的转速是同步的，工件可以被加工和分离成两部分，而不会受到过大的压力。

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