Modelling and analysis of machine tool with parallel-serial kinematics based on O-X glide mechanism

Abstract

Machine tools with a parallel-serial (hybrid) kinematics structures represent a compromise solution that combines the advantages of traditional serial and parallel kinematic in the building of machine tools. By selecting a planar parallel mechanism with optimally designed components, the supporting structure of the machine tool is obtained with improved kinematic and dynamic characteristics in the desired direction with a satisfactory working space. Such solutions are suitable for modern, multifunctional machine tools. The paper describes the original parallel-serial 3-axis O-X mechanism developed for the purpose of building of multifunctional machine tools. The basic feature of the O-X mechanism is a dual kinematic structure that allows the formation of two different workspaces with different characteristics which can be adapted to different applications. The paper presents the first prototype of a machine, developed for the purpose of testing of characteristics with an open control system based on the LinuxCNC.