Research on dynamic error caused by three coordinate measuring machine body deformation

Abstract

In high precision three coordinates measuring machine in the process of measurement, dynamic error analysis has been improved measuring machine precision and speed is an important subject. Three coordinate measuring machine structure in the movement of the dynamic deformation of the theoretical points. Due to the servo motor driving force and moving inertia force components will lead to the overall bridge, carriage, upright post and a Z shaft and other components deflect. And through the corresponding theoretical calculation, it is pointed out that the bending deformation of the main structure of the air bearing guide of the components is one of the main causes of the dynamic error. By doing dynamic error experiments, the dynamic errors of CMM body deformation was measured to verify the impact of the body deformation and probe position accuracy, optimize the design of error correction and institutions provide the basis.

Method of Detection for Complex Surfaces Based on Industrial Close-Range Photogrammetry

“…For the three-dimensional quality testing of workpiece less than 1m, coordinate measuring machine, articulated arm, laser scanning machine is usually used to measure. For the workpiece between 1m and 30m, we usually use the coordinate measuring machine, laser tracker, articulated arm, theodolite to detect, but there are many sources of error using the coordinate measuring machine [1]. such as stress and deformation error, thermal deformation error and etc.…”