The Design of Compact Five-Coordinate Measuring Machine

Abstract

In this paper, a novel type compact five-coordinate measuring machine with laser probe, which contains three translational axes and two rotational axes, was designed and built. The overall mechanical structure and several key components are introduced in detail. The structure form of column and cantilever beam is adopted, which enhances the measuring flexibility and make the probe feasible to detect the objects from various directions. With the help of results of finite element analysis on the beam, the method of pre-deformation assembly is employed to guarantee the location accuracy of the probe. Using a standard ball, the calibrating results show that the uncertainty of this machine is within 2.2