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Abstract: Firstly,
the structure, measuring theory and characteristics of a new kind of
coordinate measuring machine (CMM) using parallel-link mechanism with
three spatial degrees of freedom (3 DOF) is described. Then, an
algorithm based approach for kinematic calibration of 3 DOF
parallel-link CMM is presented, and twenty-two main kinematic parameters
of the CMM are identified using the offered method. Finally, the
identification results are verified by computer simulation. It lays the
theoretical foundation for further improving the measuring accuracy of
the studied parallel-link CMM.
Key
words: Parallel-link
mechanism CMM Kinematic calibration Computer simulation
CLC No: TH115 TH7
国家自然科学基金(59775086)和大庆石油学院基金资助项目.
Received 20030122, received in revised form 20030803
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