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公开(公告)号：US20110234146A1
公开(公告)日：2011-09-29
申请号：US13030252
申请日：2011-02-18
申请人： Yasusuke Iwashita , Tadashi Okita , Takahiro Akiyama , Geng Li
发明人： Yasusuke Iwashita , Tadashi Okita , Takahiro Akiyama , Geng Li
IPC分类号： H02P23/00
CPC分类号： G05D13/64 , B23Q17/10 , G05B19/404 , G05B2219/41136 , G05B2219/41319 , G05B2219/49254
摘要： The controller controls a spindle connected to an induction motor via a belt by controlling the rotational velocity of the induction motor. The spindle has an encoder attached thereto for detecting the position of the spindle, but the induction motor does not have a velocity detector attached thereto. The velocity of the induction motor is estimated from the spindle velocity obtained from output of the encoder, and slip of the belt is detected based on the estimated velocity of the induction motor. When occurrence of slip of the belt is detected, the estimated velocity of the induction motor will not be used for the control of the induction motor.
摘要翻译： 控制器通过控制感应电机的旋转速度通过皮带控制连接到感应电机的主轴。 主轴具有附接到其上的编码器，用于检测主轴的位置，但是感应电动机没有连接有速度检测器。 感应电动机的速度是根据从编码器的输出获得的主轴速度来估计的，并且基于感应电动机的估计速度来检测皮带的滑移。 当检测到皮带的滑动发生时，感应电动机的估计速度将不被用于感应电动机的控制。
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公开(公告)号：US08242734B2
公开(公告)日：2012-08-14
申请号：US13030252
申请日：2011-02-18
申请人： Yasusuke Iwashita , Tadashi Okita , Takahiro Akiyama , Geng Li
发明人： Yasusuke Iwashita , Tadashi Okita , Takahiro Akiyama , Geng Li
IPC分类号： H02P23/00
CPC分类号： G05D13/64 , B23Q17/10 , G05B19/404 , G05B2219/41136 , G05B2219/41319 , G05B2219/49254
摘要： The controller controls a spindle connected to an induction motor via a belt by controlling the rotational velocity of the induction motor. The spindle has an encoder attached thereto for detecting the position of the spindle, but the induction motor does not have a velocity detector attached thereto. The velocity of the induction motor is estimated from the spindle velocity obtained from output of the encoder, and slip of the belt is detected based on the estimated velocity of the induction motor. When occurrence of slip of the belt is detected, the estimated velocity of the induction motor will not be used for the control of the induction motor.
摘要翻译： 控制器通过控制感应电机的旋转速度通过皮带控制连接到感应电机的主轴。 主轴具有附接到其上的编码器，用于检测主轴的位置，但是感应电动机没有连接有速度检测器。 感应电动机的速度是根据从编码器的输出获得的主轴速度来估计的，并且基于感应电动机的估计速度来检测皮带的滑移。 当检测到皮带的滑动发生时，感应电动机的估计速度将不被用于感应电动机的控制。
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公开(公告)号：US07719218B2
公开(公告)日：2010-05-18
申请号：US11873653
申请日：2007-10-17
申请人： Yasusuke Iwashita , Takahiro Akiyama , Masakazu Niwa , Geng Li
发明人： Yasusuke Iwashita , Takahiro Akiyama , Masakazu Niwa , Geng Li
IPC分类号： H02P7/00
CPC分类号： G05B19/4065 , B23Q17/09 , G05B2219/37228 , G05B2219/37246 , G05B2219/37256 , G05B2219/42295 , G05B2219/42304
摘要： A motor control apparatus for computing or outputting motor load information, comprises: a storage unit which stores a function or table obtained in advance based on parameters used for the computation of the load information and on an actually measured value of a motor output or motor torque; and a load meter computing unit which computes the load information from the function or table stored in the storage unit by using the parameters used for the computation of the load information. With the above configuration, the load meter is computed in such a manner as to accurately indicate the load condition of a motor in real time over the entire speed range of the motor including the nonlinear control region of the motor, and the motor is controlled using the thus computed value or the computed value is displayed on a display unit.
摘要翻译： 一种用于计算或输出电动机负载信息的电动机控制装置，包括：存储单元，其基于用于负载信息的计算的参数和电动机输出或电动机转矩的实际测量值来存储预先获得的功能或表 ; 以及负载表计算单元，其通过使用用于计算负载信息的参数，从存储在存储单元中的功能或表计算负载信息。 通过上述结构，计算负载计量器，以便在包括电动机的非线性控制区域的电动机的整个速度范围内实时准确地指示电动机的负载状态，并且使用 这样计算的值或计算值被显示在显示单元上。
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公开(公告)号：US08483865B2
公开(公告)日：2013-07-09
申请号：US13020165
申请日：2011-02-03
申请人： Yasusuke Iwashita , Tadashi Okita , Junichi Tezuka
发明人： Yasusuke Iwashita , Tadashi Okita , Junichi Tezuka
IPC分类号： G06F19/00
CPC分类号： G05B19/404 , G05B2219/49203
摘要： Coordinate values of a tool center point is calculated by obtaining coordinate values at each time of respective drive axes driven by a numerical controller. A tool radius compensation vector connecting the calculated tool center point at each time and an actual machining point is obtained. Then, coordinate values of the actual machining point are calculated based on the calculated coordinate values of the tool center point and the obtained tool radius compensation vector, and the trajectory of the actual machining point is displayed on a display.
摘要翻译： 通过在数值控制器驱动的各个驱动轴的每次获得坐标值来计算刀具中心点的坐标值。 获得每次将计算出的刀具中心点与实际加工点连接的刀具半径补偿矢量。 然后，基于计算出的刀具中心点的坐标值和获得的刀具半径补偿矢量来计算实际加工点的坐标值，并且将实际加工点的轨迹显示在显示器上。
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公开(公告)号：US08026689B2
公开(公告)日：2011-09-27
申请号：US12761191
申请日：2010-04-15
申请人： Yasusuke Iwashita , Tadashi Okita , Junichi Tezuka
发明人： Yasusuke Iwashita , Tadashi Okita , Junichi Tezuka
IPC分类号： G05B11/01
CPC分类号： G05B19/416 , G05B2219/34314
摘要： A control device for a machine tool including a feed axis driving motor; a first power consumption calculating portion calculating power consumption of the feed axis driving motor; a second power consumption calculating portion calculating power consumption of equipment adapted to be operated by constant power; and a motor control portion determining a target time constant correlated with at least one of acceleration time and deceleration time of the feed axis driving motor, based on a summation of the power consumption calculated by the first power consumption calculating portion and the power consumption calculated by the second power consumption calculating portion, and controlling the feed axis driving motor based on the target time constant.
摘要翻译： 一种用于机床的控制装置，包括进给轴驱动电机; 计算进给轴驱动电机的功耗的第一功耗计算部; 第二功率消耗计算部分，用于计算适于由恒定功率运行的设备的功耗; 以及电动机控制部，其基于由所述第一功耗计算部计算出的功率消耗和由所述第一功耗计算部计算出的功率消耗的总和与由所述第一功耗计算部计算出的功耗的乘积和由 第二功率消耗计算部分，并且基于目标时间常数来控制进给轴驱动电动机。
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公开(公告)号：US20110202167A1
公开(公告)日：2011-08-18
申请号：US13020165
申请日：2011-02-03
申请人： Yasusuke Iwashita , Tadashi Okita , Junichi Tezuka
发明人： Yasusuke Iwashita , Tadashi Okita , Junichi Tezuka
IPC分类号： G05B19/19
CPC分类号： G05B19/404 , G05B2219/49203
摘要： Coordinate values of a tool center point is calculated by obtaining coordinate values at each time of respective drive axes driven by a numerical controller. A tool radius compensation vector connecting the calculated tool center point at each time and an actual machining point is obtained. Then, coordinate values of the actual machining point are calculated based on the calculated coordinate values of the tool center point and the obtained tool radius compensation vector, and the trajectory of the actual machining point is displayed on a display.
摘要翻译： 通过在数值控制器驱动的各个驱动轴的每次获得坐标值来计算刀具中心点的坐标值。 获得每次将计算出的刀具中心点与实际加工点连接的刀具半径补偿矢量。 然后，基于计算出的刀具中心点的坐标值和获得的刀具半径补偿矢量来计算实际加工点的坐标值，并且将实际加工点的轨迹显示在显示器上。
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7.发明授权Motor drive system for driving motor provided with a plurality of windings 有权用于具有多个绕组的驱动电动机的电动机驱动系统公开(公告)号：US07932689B2
公开(公告)日：2011-04-26
申请号：US12643270
申请日：2009-12-21
IPC分类号： G05B11/01
CPC分类号： H02P6/08
摘要： A motor drive system is provided with a plurality of axis control parts for outputting PWM commands using a position command, a plurality of current supply parts which supply current to the respective windings based on the PWM commands of the respective axis control parts, and which are connected to the respective windings, a motor position detector for outputting a signal of a rotor position of the motor, a first signal supply part for supplying the output signal to one current supply part of the plurality of current supply parts, and a second signal supply part for supplying the signal supplied through the first signal supply part to an axis control part corresponding to one current supply part, and the corresponding axis control part outputs a PWM command based on the signal supplied from the one current supply part through the second signal supply part to the corresponding axis control part and the position command, and the remaining axis control part outputs the PWM command based on the signal supplied from the corresponding axis control part to the remaining axis control parts and the position command. Thereby, a motor drive system capable of driving a plurality of inverters can be made simple.
摘要翻译： 电动机驱动系统设有多个轴控制部件，用于使用位置指令输出PWM指令;多个电流供应部件，其基于各个轴控制部件的PWM指令向相应的绕组提供电流， 连接到各个绕组的电动机位置检测器，用于输出电动机的转子位置的信号的电动机位置检测器，用于将输出信号提供给多个电流供应部分的一个电流供应部分的第一信号提供部分，以及第二信号供应 部分，用于将通过第一信号提供部分提供的信号提供给对应于一个电流供应部分的轴控制部分，并且相应的轴控制部分基于通过第二信号提供从一个电流供应部分提供的信号输出PWM命令 部分到相应的轴控制部分和位置指令，剩下的轴控制部分基于PWM命令输出 将从相应的轴控制部分提供的信号转到剩余的轴控制部分和位置指令。 由此，可以使能够驱动多个逆变器的电动机驱动系统简单。
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公开(公告)号：US07845205B2
公开(公告)日：2010-12-07
申请号：US11550330
申请日：2006-10-17
CPC分类号： G05B19/19 , B21D24/02 , G05B2219/42087 , G05B2219/42123 , G05B2219/45143
摘要： A die cushion controller, for driving a die cushion, disposed in opposition to a slide of a press machine, by controlling a servo motor, including: a pressure command portion which prepares a pressure command value for exerting a predetermined pressure to a press material disposed between the slide and the die cushion; a pressure detecting portion which detects an actual pressure exerted on the press material; a speed correction value preparing portion which prepares a speed correction value by multiplying a differential value of the pressure command value prepared by the pressure command portion by a coefficient; and a first speed command portion which prepares a speed command value to be instructed to the servo motor based on the pressure command value prepared by the pressure command portion, the actual pressure detected by the pressure detecting portion, and the speed correction value prepared by the speed correction value preparing portion.
摘要翻译： 一种模具缓冲控制器，用于通过控制伺服电动机来驱动与冲压机的滑动相对设置的模具缓冲垫，包括：压力指令部分，其为制备的压力材料制备用于施加预定压力的压力指令值 滑块和模座之间; 压力检测部，其检测施加在所述挤压材料上的实际压力; 速度校正值准备部，其通过将由所述压力指令部准备的所述压力指令值的差分值乘以系数来准备速度校正值; 以及第一速度指令部，其基于由压力指令部准备的压力指令值，由压力检测部检测出的实际压力和由该压力指令部分准备的速度修正值，准备要指示给伺服电动机的速度指令值 速度校正值准备部。
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公开(公告)号：US07657356B2
公开(公告)日：2010-02-02
申请号：US11289319
申请日：2005-11-30
IPC分类号： G06F19/00
CPC分类号： G05B19/416 , G05B2219/37388 , G05B2219/43058 , Y10T483/1702 , Y10T483/1733
摘要： An acceleration detection unit for detecting acceleration is mounted on a driven body. When a previous block is a positioning command, the system waits till the detected value of acceleration detected by the acceleration detection unit becomes equal to or less than a set value αs after the distribution of the movement command of the positioning command is ended. If the detected value of acceleration becomes equal to or less than the set value αs, the distribution of the movement command of the next block is started. Because the cutting feed, etc., is started after the detected value of acceleration has become equal to or less than the set value αs and the vibrations stopped, machining can be conducted with high accuracy.
摘要翻译： 用于检测加速度的加速度检测单元安装在被驱动体上。 当前一块是定位命令时，在定位命令的移动指令的分配结束之后，系统等待直到由加速度检测单元检测到的加速度的检测值变为等于或小于设定值αα。 如果检测到的加速度值等于或小于设定值ααα，则开始下一个程序段的移动指令的分配。 由于在加速度的检测值变得等于或小于设定值αα并且振动停止之后开始切削进给等，因此可以高精度地进行加工。
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10.发明授权公开(公告)号：US07631528B2
公开(公告)日：2009-12-15
申请号：US11265187
申请日：2005-11-03
CPC分类号： G05B19/19 , B21D24/02 , G05B2219/42123 , G05B2219/42275
摘要： A control apparatus for controlling a die cushion mechanism including a servo-motor as a drive source and producing a force adapted to be applied outside. The control apparatus includes a force commanding section for commanding a force to be produced by the die cushion mechanism; a force detecting section for detecting a force produced by the die cushion mechanism; a force controlling section for executing a force control on the servo-motor, based on a force command value commanded by the force commanding section and a force detected value detected by the force detecting section; and an abnormality preventing section for preventing, in association with a control state of the servo-motor, the die cushion mechanism from producing an abnormal force.
摘要翻译： 一种用于控制模具缓冲机构的控制装置，其包括作为驱动源的伺服电动机，并产生适于施加到外部的力。 控制装置包括用于指示由模具缓冲机构产生的力的力指令部分; 用于检测由模具缓冲机构产生的力的力检测部分; 力控制部，其基于由所述力指令部所指示的力指令值和由所述力检测部检测到的力检测值，对所述伺服电动机进行力控制; 以及防止与伺服电动机的控制状态相关联的模具缓冲机构产生异常力的异常防止部。
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