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31. 发明授权

US07685860B2 Control device for press machine 有权
标题翻译：冲压机控制装置
公开(公告)号：US07685860B2
公开(公告)日：2010-03-30
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： B21D22/00 , B21D22/02 , B21J9/18
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。

32. 发明申请

US20080245121A1 Device for judging collision of a die cushion mechanism and system for judging collision 审中-公开
标题翻译：用于判断模具缓冲机构和用于判断碰撞的系统的碰撞的装置
公开(公告)号：US20080245121A1
公开(公告)日：2008-10-09
申请号：US12155525
申请日：2008-06-05
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 , B30B15/00
CPC分类号： B21D24/10 , G05B19/19 , G05B2219/37411 , G05B2219/37622 , G05B2219/37624 , G05B2219/42123 , G05B2219/45131
摘要： A device (110) for judging the collision of a slide (24) with a die cushion in a die cushion mechanism (20) which produces a force against the slide in a press machine using a servo motor (18) as a drive source, comprising force detection means (21) for detecting a force produced between the die cushion and the slide; and comparator means (95) for comparing a force detection value (Fd) detected by the force detection means with a predetermined threshold value (L1); wherein, when the force detection value becomes greater than the threshold value, it is so judged that the slide has come into collision with the die cushion. Thus, the collision is judged within a short period of time and reliably. The collision may be judged by comparing differentiated values (Fd′, Fd″) of the force detection value, slide position detection value (Y1d) or slide position instruction value (Y1c) or other related threshold values. There can be further used a system for judging a collision which executes a plurality of methods for judging the collision.
摘要翻译：一种用于判断滑块（24）与模具缓冲机构（20）中的冲模垫的碰撞的装置（110），其在使用伺服电动机（18）作为驱动源的冲压机中产生对滑块的力，包括用于检测模座和滑块之间产生的力的力检测装置（21）以及比较装置，用于将由力检测装置检测的力检测值（Fd）与预定阈值（L 1）进行比较; 其中，当所述力检测值变得大于所述阈值时，判断为所述滑块与所述模具座碰撞。因此，在短时间内可靠地判断碰撞。可以通过比较力检测值，滑动位置检测值（Y 1 d）或滑动位置指示值（Y 1 c）或其他相关阈值的微分值（Fd'，Fd“）来判断碰撞。可以进一步使用用于判断碰撞的系统，该系统执行用于判断碰撞的多种方法。

33. 发明授权

US07421878B2 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：US07421878B2
公开(公告)日：2008-09-09
申请号：US11472296
申请日：2006-06-22
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： G05B19/404 , G05B2219/37323 , G05B2219/49135 , G05B2219/49176
摘要： A control device of a die cushion mechanism, by which a force between a slide and a die cushion may follow a commanded value even in the rapid acceleration or deceleration of the slide and, moreover, a problem such as vibration of the mechanism may be prevented in the gradual acceleration or deceleration of the slide. The control device includes a slide position detecting part, such as a position sensor, for detecting the position of the slide and a correcting part for correcting a current commanded value using an acceleration of the slide, obtained by second-order differentiation of the position of the slide detected by the position sensor.
摘要翻译：模具缓冲机构的控制装置，即使在滑块的快速加速或减速中，滑块和模具座之间的力也可以遵循指令值，此外，可以防止机构的振动等问题在幻灯片的逐渐加速或减速。控制装置包括用于检测滑块的位置的滑动位置检测部分，例如位置传感器，以及用于通过滑块的加速度来校正当前指令值的校正部件，该校正部件通过二阶微分由位置传感器检测到的滑块。

34. 发明申请

US20080180052A1 Control apparatus of servo motor 有权
标题翻译：伺服电机控制装置
公开(公告)号：US20080180052A1
公开(公告)日：2008-07-31
申请号：US12007945
申请日：2008-01-17
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura
IPC分类号： G05B5/01
CPC分类号： G05B19/19
摘要： The control apparatus 10 of a servo motor of the present invention has a position control unit 11 controlling the position of a servo motor 33, a speed control unit 12 controlling a speed of the servo motor 33, a distributing unit 13 dividing the speed command output by the position control unit 11 into a filtered part Vf which is filtered to suppress vibration and a nonfiltered part Vnf, a filtering unit 14 receiving as input the filtered part Vf and filtering and outputting the filtered part Vf, and an adder unit 15 adding the filtered part Vf filtered by the filtering unit 14 and the nonfiltered part Vnf and outputting the result to the speed control unit 12.
摘要翻译：本发明的伺服电动机的控制装置10具有控制伺服电动机33的位置的位置控制单元11，控制伺服电动机33的速度的速度控制单元12，分配速度指令输出通过位置控制单元11变换为被滤波以滤除振动的滤波器部分Vf和非滤波部分Vnf;滤波单元14，接收滤波部分Vf作为输入，并滤波并输出滤波部分Vf;以及加法器单元15，滤波部分Vf由滤波单元14和非滤波部分Vnf滤波，并将结果输出到速度控制单元12。

35. 发明授权

US07392684B2 Control system for servo die cushion 有权
标题翻译：伺服模座控制系统
公开(公告)号：US07392684B2
公开(公告)日：2008-07-01
申请号：US11456507
申请日：2006-07-10
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 , G05B19/19 , G05B2219/42123 , G05B2219/45143
摘要： A control system, for a press machine including a plurality of die cushions, by which force control and position control may be suitably switched from one to another in each control device for each of the die cushions. The control system includes a plurality of control devices for controlling a servomotor of each die cushion and a switching signal generating part capable of collecting the judgment result of each control device. The switching signal generating part transmits a switching signal to each control device, in order to switch the control mode of each control device.
摘要翻译：一种用于包括多个模具衬垫的压力机的控制系统，通过该控制系统可以在每个模具衬垫的每个控制装置中适当地切换力控制和位置控制。控制系统包括用于控制每个模具缓冲器的伺服电动机的多个控制装置和能够收集每个控制装置的判断结果的切换信号产生部件。切换信号生成部将切换信号发送到各控制装置，以切换各控制装置的控制模式。

36. 发明申请

US20070188123A1 Controller for servomotor 有权
标题翻译：伺服电机控制器
公开(公告)号：US20070188123A1
公开(公告)日：2007-08-16
申请号：US11703797
申请日：2007-02-08
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： G05B11/32
CPC分类号： G05B19/404
摘要： A controller for a servomotor capable of improving accuracy of positioning and quality of a machined surface by switching modes of correction of a position command or the like, and reducing a shock at the time of switching. A correction amount generating section obtains a correction amount based on a value of a correction factor such as machine temperature. When the external signal is in ON state, a position command or the like is corrected by the correction amount obtained by the correction amount generating section and sent via switches. A correction amount holding section holds the correction amount obtained by the correction amount generating section. When the external signal turns to OFF state, the connection of the switches is changed so that correction is performed by the correction amount held in the correction amount holding section. When the connection of the switches is changed, the correction amount does not change rapidly, so that the machine does not suffer a shock. In positioning, the external signal is turns to ON state, so that the positioning is carried out accurately by performing correction by the correction amount sent from the correction amount generating section. When a high-quality machined surface is required, the external signal is turned to OFF state so that the correction amount does not change to achieve improvement in the quality of a machined surface.
摘要翻译：一种伺服电动机的控制器，其能够通过切换位置指令等的切换模式来提高加工面的定位精度和质量，并减少切换时的冲击。校正量生成部根据机器温度等校正因子的值来求出校正量。当外部信号处于接通状态时，通过由校正量产生部分获得的校正量来校正位置指令等并通过开关发送。校正量保持部保持由校正量生成部获得的校正量。当外部信号变为OFF状态时，改变开关的连接，从而通过校正量保持部中保持的校正量进行校正。当开关的连接发生变化时，校正量不会迅速变化，因此机器不会受到冲击。在定位中，外部信号变为接通状态，从而通过从校正量产生部分发送的校正量执行校正来精确地执行定位。当需要高质量的加工表面时，外部信号变为断开状态，使得校正量不变，以实现加工表面的质量的提高。

37. 发明申请

US20070012083A1 Device for judging collision of a die cushion mechanism and system for judging collision 审中-公开
标题翻译：用于判断模具缓冲机构和用于判断碰撞的系统的碰撞的装置
公开(公告)号：US20070012083A1
公开(公告)日：2007-01-18
申请号：US11477804
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： B21D22/21
CPC分类号： B21D24/10 , G05B19/19 , G05B2219/37411 , G05B2219/37622 , G05B2219/37624 , G05B2219/42123 , G05B2219/45131
摘要： A device (110) for judging the collision of a slide (24) with a die cushion in a die cushion mechanism (20) which produces a force against the slide in a press machine using a servo motor (18) as a drive source, comprising force detection means (21) for detecting a force produced between the die cushion and the slide; and comparator means (95) for comparing a force detection value (Fd) detected by the force detection means with a predetermined threshold value (L1); wherein, when the force detection value becomes greater than the threshold value, it is so judged that the slide has come into collision with the die cushion. Thus, the collision is judged within a short period of time and reliably. The collision may be judged by comparing differentiated values (Fd′, Fd″) of the force detection value, slide position detection value (Y1d) or slide position instruction value (Y1c) or other related threshold values. There can be further used a system for judging a collision which executes a plurality of methods for judging the collision.
摘要翻译：一种用于判断滑块（24）与模具缓冲机构（20）中的冲模垫的碰撞的装置（110），其在使用伺服电动机（18）作为驱动源的冲压机中产生对滑块的力，包括用于检测模座和滑块之间产生的力的力检测装置（21）以及比较装置，用于将由力检测装置检测的力检测值（Fd）与预定阈值（L 1）进行比较; 其中，当所述力检测值变得大于所述阈值时，判断为所述滑块与所述模具座碰撞。因此，在短时间内可靠地判断碰撞。可以通过比较力检测值，滑动位置检测值（Y 1 d）或滑动位置指示值（Y 1 c）或其他相关阈值的微分值（Fd'，Fd“）来判断碰撞。可以进一步使用用于判断碰撞的系统，该系统执行用于判断碰撞的多种方法。

38. 发明申请

US20060288755A1 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：US20060288755A1
公开(公告)日：2006-12-28
申请号：US11472296
申请日：2006-06-22
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： B21D22/21
CPC分类号： G05B19/404 , G05B2219/37323 , G05B2219/49135 , G05B2219/49176
摘要： A control device of a die cushion mechanism, by which a force between a slide and a die cushion may follow a commanded value even in the rapid acceleration or deceleration of the slide and, moreover, a problem such as vibration of the mechanism may be prevented in the gradual acceleration or deceleration of the slide. The control device includes a slide position detecting part, such as a position sensor, for detecting the position of the slide and a correcting part for correcting a current commanded value using an acceleration of the slide, obtained by second-order differentiation of the position of the slide detected by the position sensor.
摘要翻译：模具缓冲机构的控制装置，即使在滑块的快速加速或减速中，滑块和模具座之间的力也可以遵循指令值，此外，可以防止机构的振动等问题在幻灯片的逐渐加速或减速。控制装置包括用于检测滑块的位置的滑动位置检测部分，例如位置传感器，以及用于通过滑块的加速度来校正当前指令值的校正部件，该校正部件通过二阶微分由位置传感器检测到的滑块。

39. 发明申请

US20060184257A1 Controller 审中-公开
标题翻译：控制器
公开(公告)号：US20060184257A1
公开(公告)日：2006-08-17
申请号：US11294461
申请日：2005-12-06
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： G05B13/02
CPC分类号： G05B19/404 , G05B2219/37434 , G05B2219/41117 , G05B2219/42077
摘要： In a controller, V axis and W axis for driving a driven body are tilting, not orthogonal to each other. An acceleration detector capable of detecting accelerations in a plurality of directions orthogonal to the driven body is arranged so that W-axis direction may meet Y-axis direction of an acceleration detected by the acceleration detector. An acceleration in the V-axis direction is determined by making calculations from accelerations in X-axis and Y-axis directions detected by acceleration detectors. Based on the determined accelerations in the V-axis and W-axis directions, a position command, a speed command or a current command to servo motors driving the V axis and W axis is corrected. Such correction suppresses the driven body from generation of vibrations.
摘要翻译：在控制器中，用于驱动从动体的V轴和W轴倾斜，彼此不正交。布置能够检测与被驱动体正交的多个方向上的加速度的加速度检测器，使得W轴方向可以满足由加速度检测器检测到的加速度的Y轴方向。通过从由加速度检测器检测的X轴和Y轴方向的加速度进行计算来确定V轴方向的加速度。基于所确定的V轴和W轴方向的加速度，校正对驱动V轴和W轴的伺服电动机的位置指令，速度指令或电流指令。这种校正抑制被驱动体产生振动。

40. 发明授权

US07049775B2 Servo motor control unit for press-forming machine 有权
标题翻译：伺服电机控制单元，用于压力成型机
公开(公告)号：US07049775B2
公开(公告)日：2006-05-23
申请号：US11167203
申请日：2005-06-28
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura
IPC分类号： G05B6/02 , B21J5/00
CPC分类号： G05B19/416 , B30B15/0094 , B30B15/148 , G05B2219/41202 , G05B2219/42087 , G05B2219/42092
摘要： A servo motor for driving a die is provided with position and speed detectors. Further, a pressure sensor for detecting the pressure applied to a workpiece is provided. In the servo motor control unit, the smaller one of the speed command obtained by feedback control of the position and the speed command obtained by the pressure feedback control is selected as an output of a comparator. Based on the speed command output from the comparator, feedback control of the speed is performed and the servo motor is driven. In the state where the die does not press against the workpiece, a pressure error is large, the speed command by pressure control becomes large, and the speed command by position control becomes small. Therefore, position control is performed. When the workpiece is pressed, the position error increases, and the pressure error decreases, a speed command by pressure control is employed and pressure control is performed.
摘要翻译：用于驱动模具的伺服电机设置有位置和速度检测器。此外，提供了用于检测施加到工件的压力的压力传感器。在伺服电机控制单元中，选择通过反馈控制获得的速度命令中的较小的一个，并且通过压力反馈控制获得的速度指令作为比较器的输出。根据比较器的速度指令输出，进行速度反馈控制，驱动伺服电机。在模具不压靠工件的状态下，压力误差大，压力控制的速度指令变大，位置控制的速度指令变小。因此，执行位置控制。当工件被按压时，位置误差增加，压力误差降低，采用压力控制的速度指令，进行压力控制。

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