Actuator and robot
    1.
    发明授权
    Actuator and robot 有权
    执行器和机器人

    公开(公告)号:US07953516B2

    公开(公告)日:2011-05-31

    申请号:US12349113

    申请日:2009-01-06

    申请人: Yuichi Uebayashi

    发明人: Yuichi Uebayashi

    IPC分类号: G05B19/04

    摘要: An actuator and a robot are capable of properly adjusting the compliance of the motions of links in response to external forces according to an environment or application. The actuator sets a drive command angular velocity on the basis of a desired motor angular velocity, which is the resultant angular velocity of a desired link angular velocity and a desired driven angular velocity. The component of the desired link angular velocity included in a resultant desired velocity imparts stiffness to the motion of a link, while the component of the desired driven angular velocity included in the resultant desired velocity imparts flexibility to the motion of the link. Thus, the balance between the stiffness and the flexibility of the motion of the link is adjusted by adjusting the resultant ratio between the desired link angular velocity and the desired driven angular velocity.

    摘要翻译: 致动器和机器人能够根据环境或应用来适当地调节响应于外力的链接的运动的顺应性。 致动器基于期望的电动机角速度来设定驱动指令角速度,该速度是期望的链接角速度和期望的驱动角速度的合成角速度。 包含在所得到的期望速度中的期望的链接角速度的分量赋予链接的运动的刚度,而包含在所得到的期望速度中的期望的驱动角速度的分量赋予链接运动的灵活性。 因此,通过调节期望的连杆角速度和期望的驱动角速度之间的合成比来调节链节的运动的刚度和柔性之间的平衡。

    MULTI-JOINTED ROBOT DEVIATION UNDER LOAD DETERMINATION

    公开(公告)号:US20180036891A1

    公开(公告)日:2018-02-08

    申请号:US15555406

    申请日:2015-03-23

    IPC分类号: B25J13/08

    摘要: Determining deviation of a multi jointed robot under load using a tribological contact between an end of the robot and any available hard constraint near the robot, involves pressing the end against the constraint, and then soliciting a movement of the end relative to the constraint in a tribologically resisted direction to apply a force that does not overbear the resistance. By measuring the force and a position encoded by the robot, a deviation of the robot under the corresponding load is determined. Correction terms may be required for deformation of the tribological surface and/or constraint. The constraint may be tooling or parts subjected to an intended process. The deviation at many measurement poses of the robot, each in multiple resisted directions, within the ordinary operating space of the robot, was used to derive compliances of the robot, and a kinetostatic model.

    ROBOT CONTROLLING METHOD, ROBOT APPARATUS, PROGRAM AND RECORDING MEDIUM
    5.
    发明申请
    ROBOT CONTROLLING METHOD, ROBOT APPARATUS, PROGRAM AND RECORDING MEDIUM 审中-公开
    机器人控制方法,机器人装置,程序和记录介质

    公开(公告)号:US20160263747A1

    公开(公告)日:2016-09-15

    申请号:US15058904

    申请日:2016-03-02

    发明人: Akiyoshi Yokoi

    IPC分类号: B25J9/16

    摘要: A control apparatus makes a robot hand grip a work for measurement. The control apparatus controls the operation of a robot arm so that the robot arm keeps a force of striking the work for measurement against a reference constant, while making the end portion of the robot arm rotate around the end axis, in a state of making the outer periphery F3 of the work for measurement, which is gripped by the robot hand, strike against the reference jig. The control apparatus acquires a detection result detected by an encoder of each of the joints when the end portion of the robot arm has been rotated. The control apparatus calculates a correction amount of trajectory data based on eccentricity of a central axis with respect to an end axis, by using the detection result of the encoder, and corrects the trajectory data, based on the correction amount.

    摘要翻译: 控制装置使机器人抓握用于测量的工件。 控制装置控制机器人手臂的操作,使得机器人手臂在使机器人手臂的端部围绕端轴旋转的同时保持抵抗作业的冲击参考常数的力, 由机器人手抓住的用于测量的工件的外周F3撞击参考夹具。 当机器人手臂的端部旋转时,控制装置获取由每个关节的编码器检测到的检测结果。 控制装置通过使用编码器的检测结果,基于中心轴相对于端轴的偏心度来计算轨迹数据的校正量,并根据校正量来校正轨迹数据。

    Method and system for determination of at least one property of a manipulator

    公开(公告)号:US09908238B2

    公开(公告)日:2018-03-06

    申请号:US14913966

    申请日:2014-08-25

    申请人: COGNIBOTICS AB

    IPC分类号: B25J9/16

    摘要: A method and system for determining at least one property associated with a selected axis of a manipulator (2). The elasticity of the links (4, 6, 9, 10, 13, 14) and joints (3, 5, 7, 8, 11, 12) of a manipulator (2) can be modeled and the resulting compliance can be determined. A certain method is used to control the manipulator (2) such that certain quantities related to actuator torque and/or joint position can be determined for a certain kinematic configuration of the manipulator (2). Depending on the complexity of the manipulator (2) and the number of properties that are of interest, the manipulator (2) is controlled to a plurality of different kinematic configurations in which configurations the quantities are determined. Thereafter, a stiffness matrix (K) for each component of the manipulator (2) can be determined, and a global stiffness matrix (MSM) for the total manipulator (2) can be determined in order to determine at least one property of the selected axis.

    ACTUATOR AND ROBOT
    8.
    发明申请
    ACTUATOR AND ROBOT 有权
    执行机构和机器人

    公开(公告)号:US20090177325A1

    公开(公告)日:2009-07-09

    申请号:US12349113

    申请日:2009-01-06

    申请人: Yuichi Uebayashi

    发明人: Yuichi Uebayashi

    IPC分类号: G05B15/00

    摘要: An actuator and a robot are capable of properly adjusting the compliance of the motions of links in response to external forces according to an environment or application. The actuator sets a drive command angular velocity on the basis of a desired motor angular velocity, which is the resultant angular velocity of a desired link angular velocity and a desired driven angular velocity. The component of the desired link angular velocity included in a resultant desired velocity imparts stiffness to the motion of a link, while the component of the desired driven angular velocity included in the resultant desired velocity imparts flexibility to the motion of the link. Thus, the balance between the stiffness and the flexibility of the motion of the link is adjusted by adjusting the resultant ratio between the desired link angular velocity and the desired driven angular velocity.

    摘要翻译: 致动器和机器人能够根据环境或应用来适当地调节响应于外力的链接的运动的顺应性。 致动器基于期望的电动机角速度来设定驱动指令角速度,该速度是期望的链接角速度和期望的驱动角速度的合成角速度。 包含在所得到的期望速度中的期望的链接角速度的分量赋予链接的运动的刚度,而包含在所得到的期望速度中的期望的驱动角速度的分量赋予链接运动的灵活性。 因此,通过调节期望的连杆角速度和期望的驱动角速度之间的合成比来调节链节的运动的刚度和柔性之间的平衡。

    Method and device for weight compensation in a mechanism with closed kinematic chains
    9.
    发明申请
    Method and device for weight compensation in a mechanism with closed kinematic chains 失效
    具有闭合运动链的机构中用于重量补偿的方法和装置

    公开(公告)号:US20030180087A1

    公开(公告)日:2003-09-25

    申请号:US10257342

    申请日:2002-11-21

    IPC分类号: F16B001/00

    摘要: The aim of the invention is to compensate for the position-dependent length changes caused by the effect of weight in a variety of closed kinematic chains (K1 . . . Kn), for connecting a stationary first element (E1) to a movable second element (E2). Said aim is achieved, by using a back transformation (nullnull1), which determines a compensation value for each length change (dq1, dq2 . . . dqn), resulting from the application of the weight (Fg) impinging on the movable element (E2) in each kinematic chain.

    摘要翻译: 本发明的目的是补偿由各种闭合运动链(K1 ... Kn)中的重量的影响引起的位置相关长度变化,用于将固定的第一元件(E1)连接到可移动的第二元件 (E2)。 所述目的通过使用反向变换(Lambd -1)来实现,所述反向变换(Lambd <-1>)确定由于将重量(Fg)施加到所述第一个变量上的每个长度变化(dq1,dq2 ... dqn)的补偿值 每个运动链中的可移动元件(E2)。

    METHOD AND SYSTEM FOR DETERMINATION OF AT LEAST ONE PROPERTY OF A MANIPULATOR
    10.
    发明申请
    METHOD AND SYSTEM FOR DETERMINATION OF AT LEAST ONE PROPERTY OF A MANIPULATOR 有权
    用于确定操纵器的最小一个属性的方法和系统

    公开(公告)号:US20160221189A1

    公开(公告)日:2016-08-04

    申请号:US14913966

    申请日:2014-08-25

    申请人: COGNIBOTICS AB

    IPC分类号: B25J9/16

    摘要: A method and system for determining at least one property associated with a selected axis of a manipulator (2). The elasticity of the links (4, 6, 9, 10, 13, 14) and joints (3, 5, 7, 8, 11, 12) of a manipulator (2) can be modeled and the resulting compliance can be determined. A certain method is used to control the manipulator (2) such that certain quantities related to actuator torque and/or joint position can be determined for a certain kinematic configuration of the manipulator (2). Depending on the complexity of the manipulator (2) and the number of properties that are of interest, the manipulator (2) is controlled to a plurality of different kinematic configurations in which configurations the quantities are determined. Thereafter, a stiffness matrix (K) for each component of the manipulator (2) can be determined, and a global stiffness matrix (MSM) for the total manipulator (2) can be determined in order to determine at least one property of the selected axis.

    摘要翻译: 一种用于确定与操纵器(2)的选定轴相关联的至少一个属性的方法和系统。 可以对操纵器(2)的连杆(4,6,9,10,13,14)和接头(3,5,7,8,11,12)的弹性进行建模,并且可以确定所得到的柔顺性。 使用某种方法来控制操纵器(2),使得可以针对操纵器(2)的某些运动结构确定与致动器扭矩和/或关节位置相关的某些量。 根据操纵器(2)的复杂性和感兴趣的属性的数量,操纵器(2)被控制为多个不同的运动学配置,其中确定数量的配置。 此后,可以确定用于机械手(2)的每个部件的刚度矩阵(K),并且可以确定用于总操作器(2)的全局刚度矩阵(MSM),以便确定所选择的 轴。