Accuracy distribution and determination of the flexible three-coordinate measuring machine

Chunhua Wang; Yetai Fei; Penghao Hu; Pingping Wang; Wentao Chen

doi:10.1117/12.716193

13 October 2006 Accuracy distribution and determination of the flexible three-coordinate measuring machine

Chunhua Wang, Yetai Fei, Penghao Hu, Pingping Wang, Wentao Chen

Proceedings Volume 6280, Third International Symposium on Precision Mechanical Measurements; 62800U (2006) https://doi.org/10.1117/12.716193
Event: Third International Symposium on Precision Mechanical Measurements, 2006, Urumqi, China

Abstract

Accuracy Distribution and Determination is one key step in instrument design and it influences manufacturing cost and final accuracy of machine. So, the analysis about instrument accuracy needs to be paid more attention before manufacturing. Flexible CMM has attracted lots of eyes recent years in the world. This paper gives the analysis result of the flexible CMM. At first, a typical flexible CMM is briefly introduced and the system combines 6 angle encoders and 2 measuring arms and one probe. Secondly, the measuring mathematic model is derived and the error of the parameters of the system is analyzed base on the model. Thirdly, the accuracy of the key parameters of the system have been distributed and determined according to the analysis. Finally, the theory has been approved in a practical flexible CMM. So, the theory of accuracy distribution and determination is the basement of design and manufacturing and it plays a great role in the instrument design.

Citation Download Citation

Chunhua Wang, Yetai Fei, Penghao Hu, Pingping Wang, and Wentao Chen "Accuracy distribution and determination of the flexible three-coordinate measuring machine", Proc. SPIE 6280, Third International Symposium on Precision Mechanical Measurements, 62800U (13 October 2006); https://doi.org/10.1117/12.716193

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