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    • 5. 发明申请
    • ROBOT APPARATUS, ROBOT CONTROL METHOD, PROGRAM, AND RECORDING MEDIUM
    • 机器人装置,机器人控制方法,程序和记录介质
    • US20140084840A1
    • 2014-03-27
    • US14030798
    • 2013-09-18
    • CANON KABUSHIKI KAISHA
    • Tsutomu Osaka
    • G05B19/404
    • G05B19/404G05B2219/37159G05B2219/37356G05B2219/41059
    • A robot apparatus includes a rectangular wave generating portion arranged on the output side of a speed reducer, and configured to generate first output pulse signals upon driving of a joint. A control portion includes calculating portions and a motor control portion. The motor control portion estimates an estimated joint angle using input pulse signals, and controls to operate a servo motor so that this estimated joint angle matches a target joint angle. The calculating portions calculate a torsion angle of the joint corresponding to a deviation amount between the first output pulse signals and a pulse waveform of an ideal state. The motor control portion controls to operate the servo motor so as to correct the estimated joint angle by the torsion angle.
    • 一种机器人装置,包括设置在减速器的输出侧的矩形波产生部,构成为,在驱动接合时产生第一输出脉冲信号。 控制部分包括计算部分和电动机控制部分。 马达控制部使用输入脉冲信号来估计关节角度,并且控制以操作伺服马达,使得该估计的关节角度与目标关节角度匹配。 计算部分计算对应于第一输出脉冲信号与理想状态的脉冲波形之间的偏差量的接头的扭转角。 马达控制部分控制伺服马达的操作,以便通过扭转角校正估计的关节角度。
    • 7. 发明授权
    • Method for enhancing the control response of a drive train having backlash and/or elasticity of a machine tool or production machine
    • 一种用于增强具有机床或生产机器的间隙和/或弹性的传动系的控制响应的方法
    • US07005826B2
    • 2006-02-28
    • US10763765
    • 2004-01-22
    • Bernhard DirschHans-Peter Tröndle
    • Bernhard DirschHans-Peter Tröndle
    • H02P3/18
    • G05B19/404G05B2219/37356G05B2219/41059
    • A method for increasing the control response of a drive train of a machine tool or production machine with backlash and/or elasticity is described. A combined signal comprised of the motor speed measured on the motor and the load speed measured near the load of the drive train is supplied to a controller. The combined signal can generated in one of two ways: (1) by weighting the measured motor speed with a first multiplication factor (α), by weighting the measured load speed with a second multiplication factor (1−α), and by subsequently adding the weighted motor speed to the weighted load speed; or (2) by first subtracting the measured load speed from the measured motor speed, then weighting the resulting difference by a multiplication factor α, and finally adding the load speed to the weighted difference.
    • 描述了增加具有间隙和/或弹性的机床或生产机器的传动系的控制响应的方法。 包括在马达上测量的马达速度和在传动系的负载附近测量的负载速度的组合信号被提供给控制器。 组合信号可以通过以下两种方式之一产生:(1)通过用第一乘法因子(α)对所测量的电动机速度进行加权,通过用第二乘法因子(1-α)加权测量的负载速度,并且随后添加 加权电机速度加权负载速度; 或者(2)通过首先从所测量的电动机速度中减去测量的负载速度,然后通过乘法因子α对所得到的差进行加权,最后将负载速度加到加权差。
    • 8. 发明授权
    • Method and apparatus for suppressing torsional vibration in an electric
motor speed control system
    • 用于抑制电动机速度控制系统中的扭转振动的方法和装置
    • US5410228A
    • 1995-04-25
    • US930554
    • 1992-09-29
    • Naotake ShibataKaneyuki HamadaKomei Hamamoto
    • Naotake ShibataKaneyuki HamadaKomei Hamamoto
    • H02P23/00H02P7/00
    • H02P23/16H02P23/20G05B2219/37356Y10S388/93
    • Herein disclosed are a method and an apparatus for suppressing a torsional vibration in an electric motor speed control system including a mechanism for transmitting a drive torque from an electric motor to a load through a drive shaft having a torsional spring system. Generally speaking, the signal of a speed detector (3) of an electric motor is a pulsating signal of high frequency. Even if this speed detecting signal is differentiated, it is impossible to obtain a signal proportional to the changing rate of the motor speed. By computing an average value of the signals of the motor speed detector (3) for every predetermined period, however, the pulsating value of the speed signal can be reduced to compute the changing rate of the motor speed from that signal. In the present invention, an acceleration torque command of the electric motor is given in terms of the output signal of a speed controller (11) to cancel the load torque of the electric motor from disturbing the acceleration torque of the motor, with the torque command compensating signal outputted from a motor acceleration torque controller (25) having a proportional gain and an integrator. As a result, the disturbing torque of the electric motor, which is generated by the load and the torsion of the drive shaft during an acceleration and at an abrupt load fluctuating time, is canceled so that the torsional vibration is suppressed to stabilize the variable speed characteristics.
    • PCT No.PCT / JP92 / 00110 Sec。 371日期:1992年9月29日 102(e)日期1992年9月29日PCT提交1992年2月5日PCT公布。 出版物WO92 / 14296 日本公开了1992年8月20日。此外,公开了一种用于抑制电动机速度控制系统中的扭转振动的方法和装置,该电动机速度控制系统包括用于通过具有扭转弹簧的驱动轴将来自电动机的驱动转矩传递到负载的机构 系统。 一般来说,电动机的速度检测器(3)的信号是高频的脉动信号。 即使该速度检测信号微分,也不可​​能获得与电动机速度的变化率成比例的信号。 然而,通过计算每个预定周期的电动机速度检测器(3)的信号的平均值,可以减小速度信号的脉动值,以从该信号计算电动机速度的变化率。 在本发明中,根据速度控制器(11)的输出信号给出电动机的加速转矩指令,以通过转矩指令来消除电动机的负载转矩,从而扰乱电动机的加速转矩 从具有比例增益的电机加速度转矩控制器(25)输出的补偿信号和积分器。 结果,消除了由负载产生的电动机的干扰转矩和加速期间和突然的负载波动时间期间的驱动轴的扭转,从而抑制扭转振动以使变速 特点
    • 10. 发明授权
    • Precision cutter saw
    • 精密切割锯
    • US5456147A
    • 1995-10-10
    • US888802
    • 1992-05-27
    • Horst Stange, Jr.
    • Horst Stange, Jr.
    • B23D59/00B23Q15/12B28D5/02B23Q15/013
    • B28D5/025B23D59/001B23Q15/12G05B2219/37175G05B2219/37274G05B2219/37356G05B2219/45144Y10T83/148Y10T83/242Y10T83/263Y10T83/6556Y10T83/6563
    • An automatic saw is provided having a rotatable saw blade for cutting through a workpiece which is carried on a movable arm, which permits the workpiece to be moved into engagement with the saw blade. The saw blade is mounted on a first shaft while the workpiece and arm are mounted on a second, rotary shaft. Typically, a load cell is carried on the second shaft to sense torsional stress created by the pressure of the saw against the workpiece. This torsional stress is a direct measurement of the pressure of the saw against the load cell, and may be used in a feedback system for automatic adjustment of the sawing conditions. Also, it is preferred for the second shaft to be longitudinally movable in an automatic manner by means of a threaded, rotary arrangement for longitudinally advancing and retracting the second shaft between predetermined positions. A rotary encoder may be used to monitor the rotary position of the second shaft and arm.
    • 提供了一种自动锯,其具有用于切割通过可移动臂上的工件的可旋转锯片,其允许工件移动成与锯片接合。 锯片安装在第一轴上,而工件和臂安装在第二个旋转轴上。 通常,称重传感器被承载在第二轴上以感测由锯的压力相对于工件产生的扭转应力。 这种扭转应力是锯对抗称重传感器的压力的直接测量,并且可以用于用于自动调节锯切条件的反馈系统中。 此外,优选地,第二轴可以通过螺纹旋转装置以自动方式纵向移动,用于在预定位置之间纵向前进和后退第二轴。 可以使用旋转编码器来监测第二轴和臂的旋转位置。