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    • 61. 发明申请
    • MOTOR SPEED CONTROLLER
    • 电机速度控制器
    • WO1996004708A1
    • 1996-02-15
    • PCT/JP1995001534
    • 1995-08-02
    • KABUSHIKI KAISHA YASKAWA DENKINAKAMURA, HiroshiTSURUTA, Kazuhiro
    • KABUSHIKI KAISHA YASKAWA DENKI
    • H02P05/00
    • H02P23/16H02P6/17
    • A motor speed controller which detects the position y(i-k) of a motor at the time K.Ts (k >/= 0, Ts; sampling period) ago from the present time (i) and feedback-controls the speed of the motor by using a motor speed feedback signal vfb calculated based on the signal representing the motor position detected is provided with a means which calculates a torque command u(i) from a speed command and the signal vfb, means which calculates the speed v(i-k) of the motor from the position y(i-k), means which stores the values of the speed v(i-m) (m = k, ..., M') from M' sampling periods before to the time i-K, a predictor which predicts the speed value v*(i+m) (m = -K+2, ..., M) of the motor at the times up to M sampling periods after from the dynamic characteristic model of the motor, the torque command u(i), and position (i-K), and means which finds the speed feedback signal from formula (1) where Wm and W'm represent weight factors.
    • 电动机速度控制器,从当前时间(i)检测在时间K.Ts(k> = 0,Ts;采样周期)的电动机的位置y(ik),并且反馈控制电动机的速度 通过使用基于表示检测到的电动机位置的信号计算的电动机速度反馈信号vfb,设置有从速度指令和信号vfb计算转矩指令u(i)的装置,计算速度v(ik) 从位置y(ik)的电动机的M',存储从时间iK前的M'采样周期的速度v(im)(m = k,...,M')的值的装置,预测器 电动机的动态特性模型后的M个采样周期之后的电动机的速度值v *(i + m)(m = -K + 2,...,M),转矩指令u( i)和位置(iK),以及找到来自公式(1)的速度反馈信号的装置,其中Wm和W'm表示权重因子。
    • 62. 发明申请
    • WINDING MACHINE STOPPING METHOD
    • 卷绕机停止方法
    • WO1995035254A1
    • 1995-12-28
    • PCT/JP1995001238
    • 1995-06-21
    • KABUSHIKI KAISHA YASKAWA DENKIHIRAMATSU, Kazuhiko
    • KABUSHIKI KAISHA YASKAWA DENKI
    • B66D01/54
    • B66C13/23B66D1/46B66D5/30
    • A method of stopping a winding machine that hoists and lowers an object prevents abrasion of an electromagnetic brake and a failure to hoist a load. Based on a speed instruction NREF generated by a speed instruction generating circuit NRC, a speed controller ASR outputs a torque instruction TREF to be inputted to an electric motor M and operates the winding machine. To stop the machine, after a brake instruction BR is outputted to an electromagnetic brake directly coupled to the electric motor M, the value of the torque instruction to the electric motor M is controlled to be zero for a predetermined length of time. When the electric motor speed NFB becomes zero, the control of the electric motor M is stopped.
    • 一种停止卷绕机的方法,该卷绕机能够提升和降低物体,防止电磁制动器的磨损和提升负载的失败。 根据由速度指令生成电路NRC生成的速度指令NREF,速度控制器ASR输出要输入到电动机M的转矩指令TREF,并对绕线机进行动作。 为了停止机器,在将制动指令BR输出到与电动机M直接连接的电磁制动器之后,将电动机M的转矩指令的值控制为零,持续规定的时间。 当电动机速度NFB变为零时,停止对电动机M的控制。
    • 63. 发明申请
    • WRIST STRUCTURE FOR INDUSTRIAL ROBOTS
    • 工业机器人手腕结构
    • WO1994025227A1
    • 1994-11-10
    • PCT/JP1994000709
    • 1994-04-27
    • KABUSHIKI KAISHA YASKAWA DENKINAKAKO, ToruTANIMURA, HidekiTUKUDA, Kouji
    • KABUSHIKI KAISHA YASKAWA DENKI
    • B25J17/02
    • B25J17/0258B25J19/0029Y10T74/20311Y10T74/20335
    • A wrist structure is provided with first and second reduction gears (2, 3) which have a second shaft perpendicularly crossing a first shaft extending in the lengthwise direction of an arm (1), and a third shaft perpendicularly crossing the second shaft, and which are supported on both sides of a free end portion of the arm (1), which has a hollow (11), in such a manner that the first and second reduction gears can be rotated around the second shaft; a wrist frame (4) fixed to the output shaft (24) of the first reduction gear (2) and having a hollow (42); a first bevel gear (5) which is supported so that it can be rotated around the third shaft perpendicularly crossing the second shaft provided on the wrist frame (4), and which has a hollow (51); a second bevel gear (7) which is rotatable around a shaft parallel to the second shaft, and which is meshed with the first bevel gear (5); a gear (71) combined unitarily with the second bevel gear (7); a gear (8) mounted fixedly on the output shaft (34) of the second reduction gear (3) and meshed with the gear (71); and a tool fixing member (6) fixed to the first bevel gear (5) and having a hollow (61). Accordingly, cable and hose connecting operations can be carried out easily, and the time required for such operations can be reduced.
    • 手腕结构设置有第一和第二减速齿轮(2,3),所述第一和第二减速齿轮(2,3)具有垂直于在臂(1)的长度方向上延伸的第一轴垂直的第二轴和垂直于第二轴的第三轴, 被支撑在臂(1)的具有中空部(11)的自由端部的两侧,使得第一和第二减速齿轮能够围绕第二轴旋转; 固定到所述第一减速齿轮(2)的输出轴(24)并具有中空部(42)的腕架(4); 第一锥齿轮(5),其被支撑成能够围绕设置在腕架(4)上的与第二轴垂直的第三轴旋转,并且具有中空部(51); 第二锥齿轮(7),其可绕平行于所述第二轴的轴旋转,并与所述第一锥齿轮(5)啮合; 与所述第二锥齿轮(7)一体地组合的齿轮(71); 齿轮(8),其固定地安装在所述第二减速齿轮(3)的输出轴(34)上并与所述齿轮(71)啮合; 以及固定到所述第一锥齿轮(5)并具有中空部(61)的工具固定部件(6)。 因此,可以容易地进行电缆和软管连接操作,并且可以减少这种操作所需的时间。
    • 70. 发明专利
    • DE3844124C2
    • 1991-04-04
    • DE3844124
    • 1988-12-28
    • KABUSHIKI KAISHA YASKAWA DENKI SEISAKUSHO, KITAKYUSHU, FUKUOKA, JP
    • NISHIKAWA, SEIGOOKUMURA, SHINJIAMANO, TADAYUKIHATA, KAZUTOSHI, KITAKYUSHU, FUKUOKA, JP
    • B23K9/127
    • A method is disclosed for correcting the travel path of an oscillating robotic welding torch tracing a groove line defined by an upper and lower plate. According to one aspect of the invention, a first integrated value of the welding current at the center of oscillation is compared with second and third integrated values of the welding current at opposite first and second ends of the oscillation, respectively. The travel path of the robotic welding torches adjusted towards the second end of oscillation when the second and third integrated values of the welding current are smaller than the first integrated value of the welding current. According to another aspect of the present invention, a first integrated value of the welding current at the second end of oscillation of a previous oscillation torch is compared with a second integrated value of the welding current at the second end of oscillation of a subsequent oscillation. The travel path of the robotic welding torch is adjusted towards the second end of oscillation when the difference between the first and second integrated value exceeds a predetermined allowable value. According to yet another aspect of the present invention, an integrated value of the welding current at the second end of oscillation is compared with an average integrated value of the second end of oscillation. The average integrated value at the second end of oscillation being a value resulting when the robotic vehicle correctly traverses the groove line. The travel path is adjusted towards the second end of oscillation when the difference between the first and average integrated values exceeds a predetermined allowable deviation value.