The Optimal Design of Three Degree-of-Freedom Parallel Mechanisms for Machining Applications

Details The Optimal Design of Three Degree-of-Freedom Parallel Mechanisms for Machining Applications The Optimal Design of Three Degree-of-Freedom Parallel Mechanisms for Machining Applications

2007-05-09

arxiv.org/abs/0705.1343v1

The 11Th International Conference on Advanced Robotics (2003) 1-6

Computer Science

Robotics

Scientific paper

The subject of this paper is the optimal design of a parallel mechanism intended for three-axis machining applications. Parallel mechanisms are interesting alternative designs in this context but most of them are designed for three- or six-axis machining applications. In the last case, the position and the orientation of the tool are coupled and the shape of the workspace is complex. The aim of this paper is to use a simple parallel mechanism with two-degree-of-freedom (dof) for translational motions and to add one leg to have one-dof rotational motion. The kinematics and singular configurations are studied as well as an optimization method. The three-degree-of-freedom mechanisms analyzed in this paper can be extended to four-axis machines by adding a fourth axis in series with the first two.

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