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    • 3. 发明授权
    • Robot control apparatus for monitoring load on robot
    • 用于监控机器人负载的机器人控制装置
    • US5587635A
    • 1996-12-24
    • US446713
    • 1995-05-30
    • Atsushi WatanabeRyo NiheiAkihiro Terada
    • Atsushi WatanabeRyo NiheiAkihiro Terada
    • B25J19/06G05B19/4065H02P29/00H02K17/32
    • G05B19/4065G05B2219/37209G05B2219/37344G05B2219/45083Y02P90/265
    • A robot control apparatus in which a load exerted on a driving system of a robot is detected to make it easy to judge a time for preventive maintenance or overhaul, and life of the robot driving system. A driving torque Ta outputted to the driving system is found by subtracting a torque which is spent in a motor itself for accelerating or decelerating a rotor from an output torque T of a motor M for driving each axis of the robot. Further, an average torque of the driving torque Ta and an average speed of an output shaft of the motor M are found and displayed. An average torque of an output torque of a speed reducer and an average speed of an output shaft of the speed reducer are obtained, and, based on these values, the life of the speed reducer is determined. Then a ratio of the determined life to a rated life is obtained and displayed. An actual load exerted on the driving system is monitored, so that the time for the preventive maintenance or overhaul, and life of the driving system is easily judged. Also, the life of the speed reducer is easily predicted.
    • PCT No.PCT / JP94 / 01582 Sec。 371日期:1995年5月30日 102(e)日期1995年5月30日PCT 1994年9月27日PCT公布。 公开号WO95 / 09479 日期1995年4月6日一种机器人控制装置,其中检测到施加在机器人的驱动系统上的负载,以便容易地判断用于预防性维护或大修的时间以及机器人驱动系统的寿命。 通过从用于驱动机器人的每个轴的电动机M的输出转矩T减去用于电动机本身用于加速或减速转子的转矩,找到驱动系统输出的驱动转矩Ta。 此外,找到并显示驱动转矩Ta的平均转矩和电动机M的输出轴的平均速度。 获得减速器的输出转矩的平均转矩和减速器的输出轴的平均转速,并根据这些值确定减速机的寿命。 然后获得并显示确定的寿命与额定寿命的比率。 对驱动系统施加的实际负载进行监控,以便容易地判断驾驶系统的预防性维护或大修时间和使用寿命。 此外,减速器的寿命也容易预测。
    • 5. 发明授权
    • Industrial robot provided with means for setting reference positions for
respective axes
    • 工业机器人设有用于设置各个轴的参考位置的装置
    • US5570609A
    • 1996-11-05
    • US295790
    • 1995-03-08
    • Ryo NiheiAkihiro TeradaKyozi IwasakiHikaru Yamashiro
    • Ryo NiheiAkihiro TeradaKyozi IwasakiHikaru Yamashiro
    • B25J17/00B25J9/10B25J9/16B25J19/00
    • B25J9/10B25J9/1692Y10T74/20329
    • An articulated industrial robot provided with a reference position setting means which includes two positioning contact parts 22 and 24, and the reference position setting means is provided for each joint 16 of a robot unit 10 in such a manner that the positioning contact parts 22 and 24 are brought into contact with each other so as to perform determination of a geometrical reference position for each joint drive source after the replacement of a defective drive motor or a defective reduction gear of the joint drive source. The determined geometrical reference position regarding each of the joint axes are stored in the robot controller to thereby achieve a single-axis mastering,and thus the reference position setting means simplifies single-axis mastering with respect to each joint axis of the robot unit without being subject to any spatial restrictions.
    • PCT No.PCT / JP94 / 00040 Sec。 371日期:1995年3月8日 102(e)1995年3月8日PCT PCT 1994年1月13日PCT公布。 第WO94 / 15761号公报 日期1994年7月21日具有基准位置设定装置的关节式工业机器人包括两个定位接触部分22和24,并且以机器人单元10的每个接头16设置基准位置设定装置, 接触部22和24彼此接触,以便在更换有缺陷的驱动马达或关节驱动源的有缺陷的减速齿轮之后,确定每个关节驱动源的几何参考位置。 关于每个关节轴的确定的几何参考位置被存储在机器人控制器中,从而实现单轴母盘制作,因此基准位置设置装置简化了相对于机器人单元的每个关节轴线的单轴母盘制作,而不是 受到任何空间限制。
    • 6. 发明授权
    • Small-locus machining apparatus
    • 小轨迹加工设备
    • US5549018A
    • 1996-08-27
    • US182068
    • 1994-01-13
    • Ryo NiheiAkihiro TeradaYasuo Sasaki
    • Ryo NiheiAkihiro TeradaYasuo Sasaki
    • B25J9/06B25J9/10G05G15/00
    • B25J9/107Y10T74/20317
    • A small-locus machining apparatus is attached to the distal end of a wrist of a robot but operable independently of a robot body. First and second drives of the apparatus are mounted on a base in such a manner that respective output spindles are parallel with each other. First and second rotational arms are coupled to the output spindles through decelerators, which are directly connected to the drives, allowing rotation in a plane orthogonal to the output spindles. These rotational arms and links interconnecting the rotational arms constitute a link mechanism having, for example, five joints. A tool is attached to this link mechanism, and the rotational amounts of the first and second arms are detected to determine the coordinate position of the tool.
    • PCT No.PCT / JP93 / 00584 Sec。 371日期1994年1月13日 102(e)日期1994年1月13日PCT提交1993年4月3日PCT公布。 公开号WO93 / 24285 日期:1993年12月9日一种小型轨迹加工装置安装在机器人手腕的远端,但可独立于机器人主体进行操作。 装置的第一和第二驱动装置以相应的输出主轴彼此平行的方式安装在基座上。 第一和第二旋转臂通过减速器联接到输出主轴,减速器直接连接到驱动器,允许在与输出主轴正交的平面中旋转。 互连旋转臂的这些旋转臂和链节构成具有例如五个接头的连杆机构。 工具附接到该连杆机构,并且检测第一和第二臂的旋转量以确定工具的坐标位置。
    • 7. 发明授权
    • Height-sensing device for a laser robot
    • 激光机器人的高度感测装置
    • US5489758A
    • 1996-02-06
    • US295794
    • 1994-09-14
    • Ryo NiheiAkihiro TeradaYasuo SasakiHiroshi Takamatsu
    • Ryo NiheiAkihiro TeradaYasuo SasakiHiroshi Takamatsu
    • B23K26/00B23K26/04B23K26/08B23K26/10B25J9/10B25J19/02B23K26/02
    • B23K26/0884B23K26/046B23K26/048B25J19/021
    • A laser robot having a height sensing device (13) arranged at a position very close to a laser-beam projecting machining head (9) so that the axis of the height-sensing device (13) is parallel to the longitudinal axis of the machining head (9), the three-dimensional distance data representing the positional relationship between the laser projecting nozzle (9a) of the machining head (9) and the measuring end (13a) of the height-sensing device (13) being stored in advance in the robot controller (10), the longitudinal distance between the height-sensing device (13) and a starting point of laser-beam machining being automatically measured from directly above the starting point, and a longitudinal distance between the laser beam projecting nozzle (9a) of the machining head (9) and the machining starting point being corrected on the basis of the three-dimensional distance data and the longitudinal distance measured by the height sensing device (13) to thereby accurately locate the machining head at a position corresponding to the starting point for the laser machining operation.
    • PCT No.PCT / JP94 / 00049 Sec。 371日期:1994年9月14日 102(e)1994年9月14日PCT 1994年1月14日PCT PCT。 第WO94 / 15748号PCT公开 日期:1994年7月21日。一种激光机器人,其具有布置在非常接近激光束投影加工头(9)的位置处的高度感测装置(13),使得高度感测装置(13)的轴线平行 相对于加工头(9)的纵轴,表示加工头(9)的激光投射喷嘴(9a)与高度感测装置的测量端(13a)之间的位置关系的三维距离数据 (13)被预先存储在机器人控制器(10)中,高度感测装置(13)与激光束加工的起始点之间的纵向距离从起始点的正上方自动测量,并且纵向距离 基于三维距离数据和由高度感测装置(13)测量的纵向距离来校正加工头部(9)的激光束突出喷嘴(9a)和加工起始点之间的精确度 在与激光加工操作的起始点相对应的位置处加工加工头。
    • 8. 发明授权
    • Method of and apparatus for ascertaining motion abilities of industrial
robot
    • 确定工业机器人运动能力的方法和装置
    • US4970448A
    • 1990-11-13
    • US408512
    • 1989-08-23
    • Nobutoshi ToriiRyo NiheiAkihiro Terada
    • Nobutoshi ToriiRyo NiheiAkihiro Terada
    • B25J19/02B25J19/06G05B19/18G05B19/19G05B19/4062
    • G05B19/4062G05B2219/35402G05B2219/37285G05B2219/45083
    • In an industrial robot employing electric motors (Mz, M.theta., Mu, Mw) as drive sources for driving functional robot units for movement respectively about articulatory axes (Z, .theta., U, W), electric drive currents supplied to the electric motors (Mz, M.theta., Mu, Mw) associated with the articulatory axes (Z, .theta., U, W) are detected by a current detecting unit (30), the detected electric drive current supplied to the electric motor (Mz, M.theta., Mu, Mw) associated with one selected articulatory axis among the articulatory axes (Z, .theta., U, W) is sampled every predetermined minute sampling time in a period between a first time and a second time in a robot control program for controlling the motions of the functional robot units respectively about the articulatory axes (Z, .theta., W), computing means (CPU) calculates the ratio of the root-mean-square value of the electric current supplied to the electric motor (Mz, M.theta., Mu, Mw) in the period between the first time and the second time to the rated current of the same electric motor, the root-mean-square values ratios each of the root-mean-square value to the rated current are displayed on a display (40 ) to enable an operator to ascertain the propriety of the motions of the functional robot units (16, 18, 20, 22, 24,) including robot arms.
    • PCT No.PCT / JP89 / 00017 Sec。 371日期1989年8月23日 102(e)日期1989年8月23日PCT提交1989年1月9日PCT公布。 出版物WO89 / 06182 日期:1989年7月13日。在使用电动机(Mz,Mθ,Mu,Mw)的工业机器人作为用于驱动功能性机器人单元的驱动源,分别绕着关节轴(Z,θ,U,W),电驱动 提供给与发音轴(Z,θ,U,W)相关联的电动机(Mz,Mθ,Mu,Mw)的电流由电流检测单元(30)检测,检测到的电驱动电流被提供给电 在发音轴(Z,θ,U,W)中与一个选定的发音轴相关联的电动机(Mz,Mθ,Mu,Mw)在每个预定的微小采样时间在第一时间和第二时间之间的时段内被采样 机器人控制程序用于分别控制功能机器人单元关于发音轴(Z,θ,W)的运动,计算装置(CPU)计算提供给电动机的电流的均方根值的比率 (Mz,M theta,Mu,Mw)在f 第一次和第二次达到相同电动机的额定电流,将均方根值与额定电流的均方根值进行比较,显示在显示器(40)上,以使操作者能够 确定包括机器人手臂的功能机器人单元(16,18,20,22,24)的运动的适当性。