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    • 2. 发明授权
    • Measuring apparatus and method for correcting errors in a machine
    • 用于校正机器中的错误的测量装置和方法
    • US06772619B2
    • 2004-08-10
    • US10607471
    • 2003-06-25
    • Masayuki NashikiTetsuya MatsushitaShigeharu WatanabeMasao Nakagawa
    • Masayuki NashikiTetsuya MatsushitaShigeharu WatanabeMasao Nakagawa
    • G01B2100
    • G01B21/045B25J9/1692B25J17/0266G05B2219/39034
    • To provide a measuring apparatus of positions and postures of a machine for correcting positions and postures of an end effecter by means of an actuator, and an error correcting method for correcting errors thereof. At least three universal joint fixing members 2 are attached onto a base 1 that comprises a measuring reference; steel balls 3 are fixed to the respective universal joint fixing members 2 as universal joints; a steel ball 5 is fixed to a universal joint fixing member 9 as a universal joint; a universal joint fixing member 4 is attached to an object to be measured 7 that is supported by means of another member; and a measuring device 6 is attached to between the steel balls B3 and the steel ball 5. By using such a measuring apparatus, geometrical errors of a mechanism in a machine are estimated and corrected based on measured values on positions and postures of the end effecter.
    • 提供一种用于通过致动器校正末端执行器的位置和姿势的机器的位置和姿势的测量装置,以及用于校正其错误的误差校正方法。 至少三个万向节固定构件2附接到包括测量基准的基座1上; 钢球3作为万向接头固定在各通用接头固定部件2上。 钢球5固定在通用接头固定件9上作为万向节; 万向接头固定部件4安装在被测量对象物7上,该物体由另一部件支撑; 并且将测量装置6安装在钢球B3和钢球5之间。通过使用这样的测量装置,基于终端执行器的位置和姿势的测量值来估计和校正机器中的机构的几何误差 。
    • 5. 发明授权
    • Method for controlling parallel kinematic mechanism machine and control apparatus therefor
    • 用于控制平行运动机构机器及其控制装置的方法
    • US07706922B2
    • 2010-04-27
    • US11779455
    • 2007-07-18
    • Hiroshi UenoTetsuya Matsushita
    • Hiroshi UenoTetsuya Matsushita
    • G05B15/00
    • B25J9/1623B25J9/1641G05B2219/37343G05B2219/39186Y10T409/307672Y10T409/309576
    • First of all, in a first step S1, each actuator command value for position command value and posture command value of an end-effector is determined. Next, in a second step S2, rotational resistance values of a first and a second universal joints are obtained, and in a third step S3, the force and the moment exerted to each of the second universal joints are computed using this, and in a fourth step S4, the resultant force and the resultant moment exerted to the end-effector are determined from these. Then, in the fifth step, the elastic deformation amount of a mechanism is computed using these, and a compensation amount of the actuator command value is computed using these values. And then, in the sixth step, the actuator command values determined in the first step are updated with the compensation amount determined in the fifth step taken into account.
    • 首先,在第一步骤S1中,确定末端执行器的位置指令值和姿势指令值的各执行器指令值。 接下来,在第二步骤S2中,获得第一和第二万向接头的旋转阻力值,并且在第三步骤S3中,使用这一点计算施加到每个第二万向节的力和力矩,并且在 第四步骤S4,由这些确定施加到末端执行器的合力和合成力矩。 然后,在第五步骤中,使用这些来计算机构的弹性变形量,并且使用这些值来计算致动器指令值的补偿量。 然后,在第六步骤中,利用在第五步骤中确定的补偿量来更新在第一步骤中确定的致动器命令值。
    • 9. 发明授权
    • Method and program for calculating correction value for machine tool
    • 计算机床校正值的方法和程序
    • US09002503B2
    • 2015-04-07
    • US13419817
    • 2012-03-14
    • Tetsuya Matsushita
    • Tetsuya Matsushita
    • B29C39/00G05B19/401
    • G05B19/401G05B2219/37506G05B2219/50353Y10T409/305824
    • The present invention provides a method of computing a correction value for the machine tool having two or more translational axes and one or more rotational axes for correcting error in a position and an orientation of the tool with respect to a workpiece due to the geometric error. The method includes a rotational axis correction value computing step (S3) for computing a correction value for the rotational axis by use of a geometric parameter representing the geometric error, and a translational axis correction value computing step (S4) for computing a correction value for the translational axis by use of a command value for each of the rotational axes, a command value for each of the translational axes, and the geometric parameter.
    • 本发明提供了一种用于计算具有两个或多个平移轴和一个或多个旋转轴的机床的校正值的方法,用于根据几何误差校正刀具相对于工件的位置和取向的误差。 该方法包括用于通过使用表示几何误差的几何参数来计算旋转轴的校正值的旋转轴校正值计算步骤(S3),以及用于计算修正值的平移轴校正值计算步骤(S4) 通过使用每个旋转轴的命令值的平移轴,每个平移轴的命令值和几何参数。