  The article presents an analysis of the trends in the development of
kinematic structures of modern machine-building technological equipment. The
prospects of using machines with parallel kinematics in processing, measuring
and handling equipment, their advantages and disadvantages are demonstrated. It
is shown that it is inexpedient to use ball screw drives in machines with
parallel kinematics, performing tasks of low accuracy, but with displacements
of more than 3000 mm. The rigid chain system of the Serapid firm and the
possibility of its use in machines with parallel kinematics are considered. A
schematic solution of a three-coordinate manipulation robot based on parallel
kinematics with drive mechanisms on rigid chains is proposed.
