Design and Analysis of a Mechanism for Spherical Surface Processing

Abstract

The proposed study presents a new single-driven mechanism for processing (polishing) of spherical surfaces. The fixed link in this mechanism connects with three movable links: in addition to the driving link and the output rocker, this mechanism is equipped with an additional swinging arm set to increase the rigidity of the whole system. The developed mechanism allows reproducing screw curves lying on a spherical surface. Kinematic analysis of the developed mechanism has been carried out and the spatial trajectories of its end-effector have been identified. Certain links in the mechanism are made as sliding, i.e. with variable lengths. Such design allows getting different trajectories of the end-effector at a permanent structure of the entire mechanism.