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1. 发明授权

US07956568B2 Servo motor controller 有权
标题翻译：伺服电机控制器
公开(公告)号：US07956568B2
公开(公告)日：2011-06-07
申请号：US12329062
申请日：2008-12-05
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Yuuya Ueno
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Yuuya Ueno
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。

2. 发明申请

US20090174357A1 SERVO MOTOR CONTROLLER 有权
标题翻译：伺服电机控制器
公开(公告)号：US20090174357A1
公开(公告)日：2009-07-09
申请号：US12329062
申请日：2008-12-05
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Yuuya Ueno
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Yuuya Ueno
IPC分类号： G05B11/01
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。

3. 发明授权

US08040097B2 Servo motor drive control device for calculating consumed electric energy and regenerated electric energy 有权
标题翻译：用于计算消耗的电能和再生电能的伺服电机驱动控制装置
公开(公告)号：US08040097B2
公开(公告)日：2011-10-18
申请号：US12554167
申请日：2009-09-04
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Yuuya Ueno
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Yuuya Ueno
IPC分类号： G01R21/00
CPC分类号： G05B19/416 , G05B2219/35215
摘要： A mechanical system includes a plurality of amplifier groups each having a common power source unit connected to a higher-level power source and a plurality of power supply units for supplying power to servo motors from the common power source unit. A servo motor drive control device of the mechanical system includes a plurality of amplifier group electric power detection units each determining an electric energy of the corresponding one of the amplifier groups. Each of the amplifier group electric power detection units totals individual periodic electric energy dEak of the servo motors connected to the power supply unit associated with the corresponding amplifier group thereby to determine an amplifier group periodic electric energy dEbg representing a consumed electric energy or a regenerated electric energy in the corresponding amplifier group and integrates the determined amplifier group periodic electric energy dEbg over a predetermined time length thereby to determine an amplifier group consumed electric energy Ebng.
摘要翻译：机械系统包括多个放大器组，每个具有连接到较高级电源的公共电源单元和用于从公共电源单元向伺服电机供电的多个电源单元。机械系统的伺服电动机驱动控制装置包括多个放大器组电力检测单元，每个放大器组电力检测单元确定相应的一个放大器组的电能。每个放大器组电力检测单元总计连接到与相应放大器组相关联的电源单元的伺服电动机的单个周期性电能dEak，从而确定表示消耗的电能的放大器组周期性电能dEbg或再生电在相应的放大器组中的能量，并将所确定的放大器组周期性电能dEbg集中在预定时间长度上，从而确定放大器组消耗的电能Ebng。

4. 发明授权

US07757526B2 Method for changing force control gain and die cushion control apparatus 有权
标题翻译：改变力控制增益和模具缓冲控制装置的方法
公开(公告)号：US07757526B2
公开(公告)日：2010-07-20
申请号：US11857620
申请日：2007-09-19
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
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。

5. 发明申请

US20090174349A1 MOTOR DRIVE APPARATUS EQUIPPED WITH DYNAMIC BRAKING CIRCUIT FAULT DETECTION CAPABILITY 有权
标题翻译：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
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Kenichi Takayama
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Kenichi Takayama
IPC分类号： H02P6/24 , H02P3/12
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。

6. 发明授权

US07461530B2 Die cushion mechanism, and apparatus and method for controlling the same 有权
标题翻译：模具缓冲机构及其控制装置及方法
公开(公告)号：US07461530B2
公开(公告)日：2008-12-09
申请号：US11265078
申请日：2005-11-03
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
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。

7. 发明授权

US07401492B2 Control device for a die cushion mechanism 有权
标题翻译：模具缓冲机构的控制装置
公开(公告)号：US07401492B2
公开(公告)日：2008-07-22
申请号：US11470510
申请日：2006-09-06
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
IPC分类号： B21J9/18
CPC分类号： G05B19/416 , B21D24/02 , G05B2219/41251 , G05B2219/45131
摘要： A control device (10) for a die cushion mechanism that produces a force for a slide (24) in a press machine, comprising slide velocity command-forming means (61) for forming a velocity command for the slide (24), die cushion velocity command-forming means (62) for forming a velocity command for said die cushion (20), and velocity relation calculation means (65) for calculating a velocity relation between the velocity of the slide and the velocity of the die cushion based on a rate of increase (dF) in the force produced between the slide and the die cushion immediately after the collision of the slide with the die cushion. The cushion velocity command-forming means forms the velocity command for the die cushion based upon the slide velocity command formed by the slide velocity command-forming means and upon the velocity relation calculated by the velocity relation-calculation means. This makes it possible to form an optimum velocity command for the slide and/or the die cushion.
摘要翻译：一种用于在冲压机中产生滑块（24）的力的冲模缓冲机构的控制装置（10），包括用于形成用于滑块（24）的速度指令的滑动速度指令形成装置（61）用于形成用于所述模具衬垫（20）的速度指令的速度指令形成装置（62），以及速度关系计算装置（65），用于计算滑块的速度和模具缓冲垫的速度之间的速度关系在滑块与模具座碰撞之后立即在滑块和模具垫之间产生的力的增加速度（dF）。缓冲速度指令形成装置基于由滑动速度指令形成装置形成的滑动速度指令和由速度关系计算装置计算出的速度关系，形成模具缓冲器的速度指令。这使得可以形成用于滑动件和/或模具衬垫的最佳速度命令。

8. 发明申请

US20070006632A1 Die cushion mechanism, and device and method for controlling the same 有权
标题翻译：模具缓冲机构及其控制装置及方法
公开(公告)号：US20070006632A1
公开(公告)日：2007-01-11
申请号：US11478633
申请日：2006-07-03
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
IPC分类号： B21D24/10
CPC分类号： B21D24/02 , G05B19/416 , G05B2219/42087 , G05B2219/45137
摘要： A device 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 device includes a section for commanding a force to be produced by the die cushion mechanism; a section for detecting a force produced by the die cushion mechanism and applied to the slide; a section for detecting a moving speed of the slide; and a section for executing a force control on the servo-motor. The force controlling section executes force controls in mutually different modes on the servo-motor, through mutually different control loops, one mode being provided for an initial stage defined from an instant when the die cushion mechanism starts producing the force to be applied to the slide until a predetermined subsequent instant, and another mode being provided for a succeeding stage defined after the predetermined subsequent instant, by using at least a slide-speed detected value detected by the slide-speed detecting section. The force controlling section includes a section for preparing a first speed-command value to be commanded to the servo-motor in the initial stage and a second speed-command value, different from the first speed-command value, to be commanded to the servo-motor in the succeeding stage
摘要翻译：一种用于控制模具缓冲机构的装置，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。该装置包括用于指示由模具缓冲机构产生的力的部分; 用于检测由所述模具缓冲机构产生并施加到所述滑块的力的部分; 用于检测滑块的移动速度的部分; 以及用于在伺服电动机上执行力控制的部分。力控制部通过相互不同的控制回路在伺服电动机上以相互不同的模式执行力控制，一个模式被提供用于从模具缓冲机构开始产生施加到滑块的力的时刻开始的初始阶段直到预定的后续时刻，并且通过至少使用由滑动速度检测部检测到的滑动速度检测值，为在预定的后续时刻之后定义的后续阶段提供另一模式。力控制部包括用于准备要在初始阶段对伺服电动机指令的第一速度指令值和与第一速度指令值不同的第二速度指令值的部分，以指令伺服在接下来的阶段

9. 发明申请

US20070006631A1 Control device for press machine 有权
标题翻译：冲压机控制装置
公开(公告)号：US20070006631A1
公开(公告)日：2007-01-11
申请号：US11477345
申请日：2006-06-30
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
IPC分类号： B21D24/00
CPC分类号： B21D24/02
摘要： A control device for a press machine, by which one of the slide and the die cushion is suitably controlled, when a malfunction occurs in the other, such that the force between the slide and the die cushion does not excessively increase. The control device includes a slide control part for controlling the motion of the slide and a die cushion control part for controlling the motion of the die cushion. A first transmitter transmits an abnormal signal from the die cushion control part to the slide control part when a first detector detects a malfunction of the die cushion. The slide control part is configured to move the slide, when receiving the abnormal signal, such that the slide is away from the position of the die cushion at the time of receiving the abnormal signal by a certain distance and, to stop the slide.
摘要翻译：一种用于压力机的控制装置，当另一个故障发生时，滑块和模座中的一个被适当地控制，使得滑块和模座之间的力不会过大地增加。控制装置包括用于控制滑块的运动的滑动控制部件和用于控制模具缓冲垫运动的模具缓冲控制部件。当第一检测器检测到模具垫的故障时，第一发送器将来自模具缓冲控制部件的异常信号发送到滑动控制部件。滑动控制部被配置为当接收到异常信号时使滑块移动，使得在接收异常信号一定距离时滑块远离模具座的位置，并停止滑动。

10. 发明申请

US20060158143A1 Controller 有权
标题翻译：控制器
公开(公告)号：US20060158143A1
公开(公告)日：2006-07-20
申请号：US11328086
申请日：2006-01-10
申请人： Tadashi Okita , Yasusuke Iwashita , Satoshi Ikai , Hiroyuki Kawamura
发明人： Tadashi Okita , Yasusuke Iwashita , Satoshi Ikai , Hiroyuki Kawamura
IPC分类号： H02P5/00
CPC分类号： G05B19/358 , G05B2219/37297
摘要： First and second acceleration detection means are attached to first and second sections on a driven body, and values of accelerations α1 and α2 in travel direction of the driven body are detected. On the basis of the difference or sum of the acceleration values α1 and α2, at least one of a position command, speed command, or current command for performing drive control of the driven body is corrected.
摘要翻译：第一加速度检测装置和第二加速度检测装置附接到从动体上的第一和第二部分，并且检测从动体的行进方向上的加速度α1和α2的值。基于加速度值α1和α2的差或之和，校正用于执行从动体的驱动控制的位置指令，速度指令或电流指令中的至少一个。

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