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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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4.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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6.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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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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公开(公告)号：US07401492B2
公开(公告)日：2008-07-22
申请号：US11470510
申请日：2006-09-06
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。
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公开(公告)号：US20070006632A1
公开(公告)日：2007-01-11
申请号：US11478633
申请日：2006-07-03
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
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公开(公告)号：US20070006631A1
公开(公告)日：2007-01-11
申请号：US11477345
申请日：2006-06-30
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。
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