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1. 发明授权

US07845205B2 Die cushion controller 有权
标题翻译：模具缓冲控制器
公开(公告)号：US07845205B2
公开(公告)日：2010-12-07
申请号：US11550330
申请日：2006-10-17
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 , B21J7/46
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。

2. 发明授权

US07657356B2 Controller 有权
标题翻译：控制器
公开(公告)号：US07657356B2
公开(公告)日：2010-02-02
申请号：US11289319
申请日：2005-11-30
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： 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。

3. 发明授权

US07631528B2 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：US07631528B2
公开(公告)日：2009-12-15
申请号：US11265187
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： B21D55/00 , B21C51/00 , B21J9/18
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。

4. 发明申请

US20080066515A1 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DIE嵌套控制装置的方法
公开(公告)号：US20080066515A1
公开(公告)日：2008-03-20
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： 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。

5. 发明申请

US20060090656A1 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：US20060090656A1
公开(公告)日：2006-05-04
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： 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。

6. 发明授权

US07923956B2 Control device for servo die cushion 有权
标题翻译：伺服模具坐垫控制装置
公开(公告)号：US07923956B2
公开(公告)日：2011-04-12
申请号：US12610174
申请日：2009-10-30
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： G05B5/01
CPC分类号： B21D24/02 , G05B19/416 , G05B2219/37357 , G05B2219/42087 , G05B2219/45143
摘要： A control device, for a servo die cushion, capable of improving a response after overshoot generated by collision of a slide and a die cushion. The control device has a local maximum point judging part which judges a local maximum point based on the detected speed of the servomotor; a speed correction value calculating part which calculates a speed correction value for the servomotor based on the judgment result and the detected speed of the slide; a second force commanding part which generates a second force command value, the second force command value decreasing from an initial value to a first force command value, the initial value being equal to the force detected value when reaching generally the local maximum point. The force command value is switched from the first force command value to the second force command value, when the force detected value reaches the local maximum point.
摘要翻译：一种用于伺服模具衬垫的控制装置，其能够改善由滑块和模具衬垫的碰撞产生的过冲之后的响应。控制装置具有：局部最大点判定部，其根据检测到的伺服电机的速度来判定局部最大点; 速度校正值计算部，其基于所述判断结果和所述检测到的所述滑块的速度来计算所述伺服电机的速度校正值; 第二力指令部，其产生第二力指令值，所述第二力指令值从初始值减小到第一力指令值，所述初始值等于通常达到所述局部最大点时的力检测值。当力检测值达到局部最大点时，力指令值从第一力指令值切换到第二力指令值。

7. 发明授权

US07843152B2 Motor control apparatus 有权
标题翻译：电机控制装置
公开(公告)号：US07843152B2
公开(公告)日：2010-11-30
申请号：US11938055
申请日：2007-11-09
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： H02P5/00
CPC分类号： H02P31/00 , G05B2219/34445
摘要： A motor control apparatus comprises a control processing unit (3) creating a motor drive command, power supply processing units (2A to 2D) supplying a driving voltage to a motor, and a signal relay processing unit (4) supplying the motor drive command received from unit (3) to power supply processing units (2A to 2D). Control processing unit (3) transmits a preparation request flag to power supply processing units (2A to 2D) via signal relay processing unit (4), which includes a preparation complete flag register storing preparation complete flags each transmitted from each of power supply processing units (2A to 2D) to indicate the completion of preparation for supplying power to the motor, and transmits a preparation complete flag enabled state to control processing unit (3) if contents of the preparation complete flag register indicate that the preparation is completed in all units (2A to 2D).
摘要翻译：电动机控制装置包括：产生电动机驱动指令的控制处理单元（3）;向电动机供给驱动电压的电源处理单元（2A〜2D）;以及供给接收到的电动机驱动指令的信号继电器处理单元从单元（3）到电源处理单元（2A至2D）。控制处理单元（3）经由信号中继处理单元（4）向电源处理单元（2A至2D）发送准备请求标志，该单元包括从每个电源处理单元发送的准备完成标志寄存器存储准备完成标志（2A至2D），以指示完成向电动机供电的准备，并且如果准备完成标记寄存器的内容指示所有单元的准备完成，则向控制处理单元（3）发送准备完成标志使能状态（2A〜2D）。

8. 发明授权

US07619384B2 Controller for die cushion mechanism 有权
标题翻译：模具缓冲机构控制器
公开(公告)号：US07619384B2
公开(公告)日：2009-11-17
申请号：US11438394
申请日：2006-05-23
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： G05B5/01
CPC分类号： G05B19/19 , B21D24/02 , G05B2219/41021 , G05B2219/41251 , G05B2219/42083 , G05B2219/45143 , G05B2219/49356
摘要： A controller for a die cushion mechanism includes: a spring element that is displaced according to force between the die cushion mechanism and a slide; a force instructor that instructs force; a force detector that detects force; and a speed instruction generator that generates a speed instruction of the servo motor, based on a force instruction value instructed by the force instructor and a force detection value detected by the force detector. The speed instruction generator generates the speed instruction by multiplying a force gain by a force difference determined from a difference between the force instruction value and the force detection value. The speed instruction generator changes the force gain, based on a spring constant corresponding value of the spring element determined from a force indicator that works between the slide and the die cushion.
摘要翻译：用于冲模缓冲机构的控制器包括：弹簧元件，其在模具缓冲机构和滑块之间根据力而移位; 指导力量的强制教练; 检测力的力检测器; 以及速度指令发生器，其基于由力指示器指示的力指令值和由力检测器检测的力检测值，生成伺服电动机的速度指令。速度指令发生器通过将力增益乘以由力指令值和力检测值之间的差确定的力差而产生速度指令。速度指令发生器基于从在滑块和模具衬垫之间工作的力指示器确定的弹簧元件的弹簧常数对应值来改变力增益。

9. 发明授权

US07506530B2 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：US07506530B2
公开(公告)日：2009-03-24
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： B21J9/18
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。

10. 发明申请

US20060267535A1 Controller for die cushion mechanism 有权
标题翻译：模具缓冲机构控制器
公开(公告)号：US20060267535A1
公开(公告)日：2006-11-30
申请号：US11438394
申请日：2006-05-23
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： G05B5/01
CPC分类号： G05B19/19 , B21D24/02 , G05B2219/41021 , G05B2219/41251 , G05B2219/42083 , G05B2219/45143 , G05B2219/49356
摘要： A controller for a die cushion mechanism includes: a spring element that is displaced according to force between the die cushion mechanism and a slide; a force instructor that instructs force; a force detector that detects force; and a speed instruction generator that generates a speed instruction of the servo motor, based on a force instruction value instructed by the force instructor and a force detection value detected by the force detector. The speed instruction generator generates the speed instruction by multiplying a force gain by a force difference determined from a difference between the force instruction value and the force detection value. The speed instruction generator changes the force gain, based on a spring constant corresponding value of the spring element determined from a force indicator that works between the slide and the die cushion. With this arrangement, the die cushion mechanism can be controlled with high precision, even when a mechanical characteristic changes. A force indicator is a force instruction value or a force detection value. In place of the force indicator, a spring constant corresponding value can be determined according to displacement of the spring element or a position of the die cushion mechanism.
摘要翻译：用于冲模缓冲机构的控制器包括：弹簧元件，其在模具缓冲机构和滑块之间根据力而移位; 指导力量的强制教练; 检测力的力检测器; 以及速度指令发生器，其基于由力指示器指示的力指令值和由力检测器检测的力检测值，生成伺服电动机的速度指令。速度指令发生器通过将力增益乘以由力指令值和力检测值之间的差确定的力差而产生速度指令。速度指令发生器基于从滑块和模具垫之间工作的力指示器确定的弹簧元件的弹簧常数对应值来改变力增益。通过这种布置，即使机械特性变化，也能够高精度地控制模具缓冲机构。力指示器是力指令值或力检测值。代替力指示器，可以根据弹簧元件的位移或模具缓冲机构的位置来确定弹簧常数对应值。

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