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公开(公告)号：US07248014B2
公开(公告)日：2007-07-24
申请号：US10461331
申请日：2003-06-16
申请人： Eiji Genma , Yasusuke Iwashita , Hiroyuki Kawamura
发明人： Eiji Genma , Yasusuke Iwashita , Hiroyuki Kawamura
IPC分类号： G05B1/00
CPC分类号： G05B19/19
摘要： A motor control system capable of securing stability and rapidity of motion even in a machine where the stability varies in accordance with a position of a driven member. The driven member and a motor for driving the driven member are operatively connected through a transmission mechanism including a nonlinear element such that a rate of change of the position of the driven member with respect to the position of the motor varies in dependence on the position of the motor. Optimum values of multiplier factors of operation constants with respect to the position of the driven member or the rotational position of the motor for the position control and the velocity control are stored in a data table. The values of the multiplier factors of the operation constants for a present position of the driven member or a present position of the motor are determined using the data table and the determined values of the multiplier factors are multiplied by reference operation constants to update the operation constants. The position and/or velocity control processing is performed using the updated optimum operation constants in accordance with the present position of the driven member or the present rotational position of the motor.
摘要翻译： 一种电机控制系统，即使在稳定性根据被驱动构件的位置而变化的机器中，也能够确保运动的稳定性和快速性。 从动构件和用于驱动从动构件的电动机通过包括非线性元件的传动机构可操作地连接，使得从动构件相对于电动机位置的位置的变化率根据 电机。 相对于从动构件的位置的操作常数的乘数因子或用于位置控制的电机的旋转位置和速度控制的最佳值存储在数据表中。 使用数据表确定从动构件的当前位置的操作常数的乘数因子或电动机的当前位置的值，并将乘数因子的确定值乘以参考运算常数以更新运算常数 。 根据从动构件的当前位置或电动机的当前旋转位置，使用更新的最佳操作常数来执行位置和/或速度控制处理。
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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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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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5.发明申请公开(公告)号：US20080066515A1
公开(公告)日：2008-03-20
申请号：US11857620
申请日：2007-09-19
IPC分类号： B21D22/00
CPC分类号： B21D24/02 , G05B19/237 , G05B2219/41251 , G05B2219/45143
摘要： A method for changing a force control gain expressed as a ratio of force error to velocity command value in a control circuit performing a force control of a servo motor driving a die cushion disposed opposite to a slide in a press machine. The method includes: obtaining a difference between a displacement of the slide and a displacement of the die cushion in a state in which the slide and the die cushion collide with and are exerting force on each other; detecting the force when the difference of the displacements is obtained; calculating a spring constant of a structural portion based on a proportionality between the difference of the displacements and the force, when regarding the structural portion including the slide and the die cushion as an elastic structure; and changing the force control gain based on the spring constant using a fixed proportionality that exists between the force control gain and a reciprocal of the spring constant.
摘要翻译： 一种用于在执行对在压机中与滑块相对设置的模座的驱动伺服电动机的力控制的控制电路中，改变表示为力误差与速度指令值的比的力控制增益的方法。 该方法包括：在滑块和模座碰撞并且彼此施加力的状态下，获得滑块的位移和模具垫的位移之间的差异; 当获得位移的差异时检测力; 当关于包括滑动件和模具衬垫的结构部分作为弹性结构时，基于位移的差异和力之间的比例来计算结构部分的弹簧常数; 并且使用存在于力控制增益和弹簧常数的倒数之间的固定比例度，基于弹簧常数来改变力控制增益。
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公开(公告)号：US20060090656A1
公开(公告)日：2006-05-04
申请号：US11265078
申请日：2005-11-03
IPC分类号： B30B15/26
CPC分类号： G05B19/19 , B21D24/02 , G05B2219/41139 , G05B2219/42087 , G05B2219/45131
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 to a slide in a press machine. 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 the force produced by the die cushion mechanism; a motor-speed detecting section for detecting an operating speed of the servo-motor; a slide-speed detecting section for detecting a moving speed of the slide; and 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, a force detected value detected by the force detecting section, a motor-speed detected value detected by the motor-speed detecting section and a slide-speed detected value detected by the slide-speed detecting section.
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，并且产生适于施加到冲压机中的滑块的力。 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; 电动机速度检测部，用于检测伺服电动机的运转速度; 用于检测滑块的移动速度的滑块速度检测部分; 以及力控制部，其基于由所述力指令部指定的力指令值，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，由所述电动机检测出的电动机速度检测值 速度检测部和由滑动速度检测部检测到的滑动速度检测值。
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公开(公告)号：US07956568B2
公开(公告)日：2011-06-07
申请号：US12329062
申请日：2008-12-05
IPC分类号： G05D23/275
CPC分类号： H02P7/2855 , H02P23/16 , H02P29/00
摘要： A servo motor controller having: a frequency identification section that performs analysis based on a frequency response method and identifies the frequency of a disturbance exhibiting a specified phase lag; an input/output gain identification section that identifies the input/output gain at the frequency identified by the frequency identification section; and a magnification factor resetting section that resets an adjustment magnification factor by performing a specified operation on a ratio between the identified input/output gain and a specified target value of the input/output gain.
摘要翻译： 一种伺服电动机控制器，具有：频率识别部，其基于频率响应方式进行分析，并识别表现出规定的相位滞后的干扰的频率; 输入/输出增益识别部分，其识别由频率识别部分识别的频率处的输入/输出增益; 以及放大倍率复位部，其通过对所识别的输入/输出增益与输入/输出增益的指定目标值之间的比率执行指定的操作来重置调整放大系数。
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8.发明授权公开(公告)号：US07757526B2
公开(公告)日：2010-07-20
申请号：US11857620
申请日：2007-09-19
IPC分类号： B21C51/00
CPC分类号： B21D24/02 , G05B19/237 , G05B2219/41251 , G05B2219/45143
摘要： A method for changing a force control gain expressed as a ratio of force error to velocity command value in a control circuit performing a force control of a servo motor driving a die cushion disposed opposite to a slide in a press machine. The method includes: obtaining a difference between a displacement of the slide and a displacement of the die cushion in a state in which the slide and the die cushion collide with and are exerting force on each other; detecting the force when the difference of the displacements is obtained; calculating a spring constant of a structural portion based on a proportionality between the difference of the displacements and the force, when regarding the structural portion including the slide and the die cushion as an elastic structure; and changing the force control gain based on the spring constant using a fixed proportionality that exists between the force control gain and a reciprocal of the spring constant.
摘要翻译： 一种用于在执行对在压机中与滑块相对设置的模座的驱动伺服电动机的力控制的控制电路中，改变表示为力误差与速度指令值的比的力控制增益的方法。 该方法包括：在滑块和模座碰撞并且彼此施加力的状态下，获得滑块的位移和模具垫的位移之间的差异; 当获得位移的差异时检测力; 当关于包括滑动件和模具衬垫的结构部分作为弹性结构时，基于位移的差异和力之间的比例来计算结构部分的弹簧常数; 并且使用存在于力控制增益和弹簧常数的倒数之间的固定比例度，基于弹簧常数来改变力控制增益。
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9.发明申请MOTOR DRIVE APPARATUS EQUIPPED WITH DYNAMIC BRAKING CIRCUIT FAULT DETECTION CAPABILITY 有权装有动态制动电路的电机驱动装置故障检测能力公开(公告)号：US20090174349A1
公开(公告)日：2009-07-09
申请号：US12324972
申请日：2008-11-28
CPC分类号： H02P3/18 , G01R31/024
摘要： A motor drive apparatus 1 having a dynamic braking circuit 5 for producing a deceleration torque utilizing a braking force caused by a synchronous motor 4 acting as a generator when the synchronous motor 4 is deenergized, is equipped with a dynamic braking circuit fault detection capability, and comprises: a DC power supply 2 which is obtained by rectifying input AC power; voltage application means 2, 3, 10, 11 for applying a voltage to the windings of the synchronous motor 4 and to the dynamic braking circuit 5 for a predetermined length of time by switching power transistors A to F connected to the DC power supply 2; current detection means 6 for detecting the value of a current flowing from the power transistors A to F; and fault checking means 11 for checking the dynamic braking circuit 5 for the presence or absence of a fault, based on the current value detected by the current detection means 6 and on a predefined threshold value. With this configuration, detection of faults in the dynamic braking circuit is accomplished without requiring the addition of a contact signal or a control circuit.
摘要翻译： 具有动力制动电路5的电动机驱动装置1配备动态制动电路故障检测能力，该动力制动电路5利用在同步电动机4断电时作为发电机的同步电动机4产生的制动力产生减速转矩， 包括：通过整流输入AC电力获得的直流电源2; 通过连接到直流电源2的功率晶体管A至F将电压施加到同步电动机4的绕组和动态制动电路5达预定时间长度的电压施加装置2,3,10,11; 用于检测从功率晶体管A到F的电流值的电流检测装置6; 以及用于根据由电流检测装置6检测到的电流值和预定义的阈值来检查动态制动电路5是否存在故障的故障检查装置11。 利用这种配置，可以在不需要添加接触信号或控制电路的情况下实现动态制动电路中的故障的检测。
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10.发明授权公开(公告)号：US07461530B2
公开(公告)日：2008-12-09
申请号：US11265078
申请日：2005-11-03
IPC分类号： B21C51/00
CPC分类号： G05B19/19 , B21D24/02 , G05B2219/41139 , G05B2219/42087 , G05B2219/45131
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 to a slide in a press machine. 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 the force produced by the die cushion mechanism; a motor-speed detecting section for detecting an operating speed of the servo-motor; a slide-speed detecting section for detecting a moving speed of the slide; and 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, a force detected value detected by the force detecting section, a motor-speed detected value detected by the motor-speed detecting section and a slide-speed detected value detected by the slide-speed detecting section.
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，并且产生适于施加到冲压机中的滑块的力。 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; 电动机速度检测部，用于检测伺服电动机的运转速度; 用于检测滑块的移动速度的滑块速度检测部分; 以及力控制部，其基于由所述力指令部指定的力指令值，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，由所述电动机检测出的电动机速度检测值 速度检测部和由滑动速度检测部检测到的滑动速度检测值。
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