We have designed a micro parallel positioning platform with two translational motions and a rotational motion that can tilt through large angles. Combined with a laser source mounted on its own slide, the platform can be used to produce fully three-dimensional micro-scale components. We investigate the kinematics, workspace, Jacobian matrix, and singularities of this parallel mechanism, and ana...

The accuracy of the end-effector motion trajectory is a critical performance indicator for cable-driven parallel mechanisms. This study aims to address problem error during in mechanism. It proposes comprehensive compensation method based on simultaneous application improved sparrow search algorithm and cable length space algorithm, leveraging kinematic analysis. To compensate caused by geometr...

This paper presents a simple yet comprehensive approach that enables the stiffness of a tripod-based parallel kinematic machine to be quickly estimated. The approach can be implemented by two steps. In the first step, the machine structure is decomposed into two substructures associated with the machine frame and the parallel mechanism. The stiffness model of each substructure is formulated by ...

CaPaMan (Cassino Parallel Manipulator) is a threedegree of freedom parallel mechanism that has been designed and built at Laboratory of Robotics and Mechatronics in Cassino. In this paper a study of the configuration singularities of the CaPaMan manipulator is presented by considering two different methods: an algebraic formulation and a vector analysis. It will be shown that a formulation can ...

Parallel robots with configurable platforms are a class of in which the end-effector has an inner mobility, so that its overall shape can be reconfigured: most cases, is thus closed-loop kinematic chain composed rigid links. These have greater flexibility their motion and control respect to rigid-platform parallel architectures, but kinematics more challenging analyze. In our work, we consider ...

The paper addresses kinematic and geometrical aspects of the Orthoglide, a three-DOF parallel mechanism. This machine consists of three fixed linear joints, which are mounted orthogonally, three identical legs and a mobile platform, which moves in the Cartesian x-y-z space with fixed orientation. New solutions to solve inverse/direct kinematics are proposed and a detailed workspace analysis is ...

The paper addresses kinematic and geometrical aspects of the Orthoglide, a three-DOF parallel mechanism. This machine consists of three fixed linear joints, which are mounted orthogonally, three identical legs and a mobile platform, which moves in the Cartesian x-y-z space with fixed orientation. New solutions to solve inverse/direct kinematics are proposed and we perform a detailed workspace a...

This paper presents a workpiece moving unit with parallel kinematics, where its kinematic model is described. Based on the Chebyshev-Grübler-Kutzbach mobility equation properties of mechanism are examined. Using modified criterion number degrees freedom tilting table determined, after this screw theory will be presented. As does not take into account geometrical characteristics examined structu...

The leg structure with high dynamic stability can make the bionic biped robot have inherent conditions to perform elastic and highly motion. Compared quadruped robot, of is more complex has degrees freedom. This also complicates kinematic modeling. In this paper, kinematics model a established. configuration series parallel hybrid mechanism five active joints six passive joints. spring mass tha...

Abstract: This paper is aimed in presenting a study on the kinematic modeling of the Tricept based five-axis vertical machine tool. Since the machine comprises 3-DOF parallel structure and 2-DOF serial wrist kinematic modeling also comprises serial and parallel part. As solution of direct and inverse kinematics of 2-DOF serial wrist is well known the study in this paper will focus on the parall...