Position analysis of robotic systems represents the basis of their kinematic and dynamic studies, control, and optimal design. This paper considers position analysis of a novel hybrid robot with six degrees of freedom (6-DOF) composed of two modules, with the main focus on its inverse kinematics. The first module is a 5-DOF redundantly actuated parallel-serial manipulator. It relies on a 4-DOF Delta-type mechanism with the Schönflies motion type and provides its end-effector with three translational and two rotational DOFs. The second module is a 1-DOF rotary table. Using transformation matrices and the product-of-exponentials (PoE) formula, the article derives a closed-form solution to the inverse kinematic problem for the specified relative configuration of the modules. A numerical example illustrates the developed algorithms.

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Position Analysis of a 6-DOF Delta-Type Hybrid Robot

  • Anton Antonov,
  • Alexey Fomin,
  • Pavel Laryushkin

摘要

Position analysis of robotic systems represents the basis of their kinematic and dynamic studies, control, and optimal design. This paper considers position analysis of a novel hybrid robot with six degrees of freedom (6-DOF) composed of two modules, with the main focus on its inverse kinematics. The first module is a 5-DOF redundantly actuated parallel-serial manipulator. It relies on a 4-DOF Delta-type mechanism with the Schönflies motion type and provides its end-effector with three translational and two rotational DOFs. The second module is a 1-DOF rotary table. Using transformation matrices and the product-of-exponentials (PoE) formula, the article derives a closed-form solution to the inverse kinematic problem for the specified relative configuration of the modules. A numerical example illustrates the developed algorithms.