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    • 81. 发明申请
    • CONTROL DEVICE FOR A DIE CUSHION MECHANISM
    • 一种DIE CUSHION机制的控制装置
    • US20070051155A1
    • 2007-03-08
    • US11470510
    • 2006-09-06
    • Yasusuke IWASHITATadashi OKITAHiroyuki KAWAMURASatoshi IKAI
    • Yasusuke IWASHITATadashi OKITAHiroyuki KAWAMURASatoshi IKAI
    • B21D24/04
    • G05B19/416B21D24/02G05B2219/41251G05B2219/45131
    • 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.
    • 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。
    • 82. 发明申请
    • Die cushion mechanism, and device and method for controlling the same
    • 模具缓冲机构及其控制装置及方法
    • US20070006632A1
    • 2007-01-11
    • US11478633
    • 2006-07-03
    • Yasusuke IwashitaTadashi OkitaHiroyuki KawamuraSatoshi Ikai
    • Yasusuke IwashitaTadashi OkitaHiroyuki KawamuraSatoshi Ikai
    • B21D24/10
    • B21D24/02G05B19/416G05B2219/42087G05B2219/45137
    • 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
    • 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
    • 83. 发明申请
    • Control device for press machine
    • 冲压机控制装置
    • US20070006631A1
    • 2007-01-11
    • US11477345
    • 2006-06-30
    • Yasusuke IwashitaTadashi OkitaHiroyuki KawamuraSatoshi Ikai
    • Yasusuke IwashitaTadashi OkitaHiroyuki KawamuraSatoshi Ikai
    • B21D24/00
    • B21D24/02
    • 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.
    • 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。
    • 87. 发明授权
    • Controller for machine
    • 机器控制器
    • US06507165B2
    • 2003-01-14
    • US09779496
    • 2001-02-09
    • Tetsuaki KatoToru ShirahataKaname MatsumotoHiroyuki Kawamura
    • Tetsuaki KatoToru ShirahataKaname MatsumotoHiroyuki Kawamura
    • G05B602
    • B25J9/1641G05B5/01G05B19/416G05B2219/41238G05B2219/42062
    • A controller for a machine such as a robot and a machine tool having an electric motor as a driving source of the machine, capable of suppressing a natural vibration of the machine and/or an attachment attached to the machine. A frequency or a cycle of the natural vibration of an end effector of the robot as the attachment or the machine itself is determined and a coefficient of a filter for suppressing an amplitude of the natural vibration is altered in accordance with the measured frequency or cycle of the natural vibration. In the case of suppressing a natural vibration of the end effector attached to the robot, frequencies or cycles of natural vibrations of various end effectors in accordance with an operation status of the end effector are determined and stored, and the coefficient of the filter is set in accordance with the stored frequency or cycle of the natural vibration in accordance with the end effector attached to the robot and the operation status. In the case of suppressing a natural vibration of the machine, the natural frequency of the machine is always detected and the coefficient of the filter is automatically altered in accordance with the detected natural frequency, to thereby suppressing an amplitude of the natural vibration of the machine having the natural frequency varying due to variation of load and aging of the machine.
    • 用于诸如机器人和机器的机器的控制器,其具有电动机作为机器的驱动源,能够抑制机器的固有振动和/或附着到机器上的附件。 确定作为附件或机器本身的机器人的末端执行器的自然振动的频率或周期,并且根据测量的频率或周期来改变用于抑制自然振动幅度的滤波器的系数 自然振动。 在抑制机器人附近的末端执行器的固有振动的情况下,确定并存储根据末端执行器的运行状态的各种末端执行器的自然振动的频率或周期,并设定滤波器的系数 按照存储的频率或周期的自然振动,根据附加到机器人的末端执行器和操作状态。 在抑制机器的固有振动的情况下,始终检测机器的固有频率,并且根据检测到的固有频率自动改变滤波器的系数,从而抑制机器的自然振动的振幅 具有由于机器的负载和老化的变化引起的固有频率变化。
    • 88. 发明授权
    • Production method of plasma display panel suitable for minute cell
structure, the plasma panel, and apparatus for displaying the plasma
display panel
    • 适用于微小电池结构的等离子体显示面板的制造方法,等离子体面板以及显示等离子体显示面板的装置
    • US5951350A
    • 1999-09-14
    • US932508
    • 1997-09-18
    • Masaki AokiShigeo SuzukiMitsuhiro OhtaniHiroyuki KawamuraHiroyuki Kado
    • Masaki AokiShigeo SuzukiMitsuhiro OhtaniHiroyuki KawamuraHiroyuki Kado
    • H01J9/227H01J17/49
    • H01J9/227H01J2211/42H01J2217/49
    • The present invention aims to provide a method of producing a plasma display panel in which the fluorescent substance layer or the reflection layer is formed easily and accurately even for a minute cell structure, and in which the fluorescent substance layer or the reflection layer is formed evenly in the channels between the partition walls formed in stripes, or such a layer is formed also on the sides of the partition walls. To achieve this purpose, a fluorescent substance layer or a reflection layer is formed by applying a fluorescent substance ink or a reflection material ink continuously onto the channels, the ink being spouted out from a nozzle which runs along the partition walls. The nozzle may be directed to one side of the plurality of partition walls while running. Pressure may be put upon the ink having been applied onto the channels so that the ink sticks to both sides of the partition walls. The ink may be continuously spouted out from a nozzle while a bridge is formed between the nozzle and both sides of the partition walls by surface tension of the ink. A plate with a plurality of partition walls and channels in between may be formed so that adsorption of the sides of the channels against the ink is higher than that of the bottom of the channels.
    • 本发明的目的在于提供等离子体显示面板的制造方法,其中即使对于微小电池结构也容易且准确地形成荧光物质层或反射层,并且其中均匀地形成荧光物质层或反射层 在形成为条纹的隔壁之间的通道中,或者也在隔壁的侧面上形成这样的层。 为了达到这个目的,通过将荧光物质油墨或反射材料油墨连续施加到通道上形成荧光物质层或反射层,油墨从沿着分隔壁延伸的喷嘴喷出。 喷嘴可以在运行时被引导到多个分隔壁的一侧。 可以将压力施加到已经施加到通道上的油墨上,使得油墨粘附在分隔壁的两侧。 油墨可以从喷嘴连续地喷出,同时通过油墨的表面张力在分隔壁的喷嘴和两侧之间形成桥。 可以形成具有多个间隔壁和槽之间的通道的板,使得通道的侧面对油墨的吸附高于通道底部的吸附。
    • 89. 发明授权
    • Method of estimating disturbance load on servomotor
    • 估计伺服电机的扰动负荷的方法
    • US5936369A
    • 1999-08-10
    • US875422
    • 1997-07-28
    • Yasusuke IwashitaHiroyuki Kawamura
    • Yasusuke IwashitaHiroyuki Kawamura
    • G05B13/02G05B19/19G05D3/00H02P29/00G05D3/12
    • G05B19/19G05B2219/31291G05B2219/41368G05B2219/41389G05B2219/41396
    • A disturbance load estimation method for a servomotor in which an disturbance load externally exerted on the servomotor can be accurately estimated even when the voltage is saturated. Actual values (Ir, Is, It) of three-phase alternating current determined by current loop processing (term 1) are converted by DQ conversion, and an effective current component (Iq) that contributes to a torque generated by the servomotor is obtained (term 4). Based on the obtained effective current component, a motor acceleration is estimated (term 5), a difference between the estimated acceleration and an actual motor acceleration (term 6) is obtained, and the disturbance load is estimated based on the acceleration difference (term 7).
    • PCT No.PCT / JP96 / 03474 Sec。 371日期1997年7月28日第 102(e)日期1997年7月28日PCT 1996年11月27日PCT公布。 公开号WO97 / 20260 PCT 日期:1997年6月5日即使在电压饱和的情况下也能够精确地估计伺服电动机的外部施加的干扰负荷的伺服电动机的扰动负荷估计方法。 通过电流环路处理(项1)确定的三相交流电的实际值(Ir,Is,It)通过DQ转换转换,并且获得有助于由伺服电动机产生的转矩的有效电流分量(Iq)( 术语4)。 根据获得的有效电流分量,估计电动机加速度(项5),获得推定加速度与实际电动机加速度(项6)之间的差异,根据加速度差(项7)来估计干扰负荷 )。
    • 90. 发明授权
    • Current controlling method for servo motor
    • 伺服电机电流控制方式
    • US5726545A
    • 1998-03-10
    • US671875
    • 1996-06-28
    • Yasusuke IwashitaHiroyuki Kawamura
    • Yasusuke IwashitaHiroyuki Kawamura
    • H02P21/00H02P21/06H02P23/00H02P27/04H02P7/36
    • H02P21/06H02P21/22H02P23/16
    • A current control method for a servo motor capable of compensating a delay in a current loop. A corrective electrical angle corresponding to the delay in the current loop is obtained and a phase angle is corrected using the corrective electrical angle. Then the delay of the current loop is compensated by a DQ coordinate conversion for converting a three-phase AC current into a two-phase DC current, or a two-phase DC voltage into a three-phase AC voltage, using the corrected phase angle. The phase angle is corrected by subtracting the corrective electrical angle from the phase angle and the DQ conversion is performed for obtaining a two-phase DC current from a three-phase AC current using the corrected phase angle. Alternatively, the phase angle is corrected by adding the corrective electrical angle to the phase angle and the DQ conversion is performed for obtaining a three-phase AC voltage from a two-phase AC voltage using the corrected phase angle, to compensate the delay of the current loop.
    • 一种用于补偿电流回路延迟的伺服电机的电流控制方法。 获得对应于电流回路中的延迟的校正电角度,并使用校正电角校正相位角。 然后,通过DQ坐标转换来补偿电流回路的延迟,用于将三相AC电流转换成两相DC电流,或将两相DC电压转换为三相AC电压,使用校正的相位角 。 通过从相位角减去校正电角度来校正相位角,并且执行DQ转换以使用校正的相位角从三相AC电流获得两相DC电流。 或者,相位角通过将校正电角加到相位角进行校正,并且执行DQ转换以使用校正的相位角从两相交流电压获得三相交流电压,以补偿相位角的延迟 电流回路。