Measurement of Movement Error and its Compensation for 6-DOF Parallel Mechanism Worktable
In this study, a small, 6-DOF (degree of freedom) parallel mechanism worktable for machine tool was developed. There are a lot of factors that affect the positioning error and the accuracy of the machine tools. The uncertainty in position is mainly due to the rigidity of the structure, the geometric error of parts and assembly errors. It is very difficult to estimate the assembly errors and the link parameter of each part. In this paper, the uncertainty factor in positioning of the worktable was investigated and compensated based on measurement of movement error by using coordinate measuring machine (CMM).
Tojiro Aoyama, Hideki Aoyama, Atsushi Matsubara, Hayato Yoshioka and Libo Zhou
Y. R. Zhang et al., "Measurement of Movement Error and its Compensation for 6-DOF Parallel Mechanism Worktable", Key Engineering Materials, Vols. 523-524, pp. 463-468, 2012