Abstract

Manipulators of a new class characterized by a parallel-cross structure are considered. Kinematic chains located according to the principles of a parallel structure are linked with cross chains that contain drives or impose constraints. Such a layout may facilitate a decrease in the dimensions of the foundation and the output link and an increase in stiffness. A classification of the proposed mechanisms is presented. The working volumes of the new manipulators and those of the most popular manipulators based on a parallel structure (the Gough-Stewart platform) are compared.

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