Design of a Coaxial Positioning System Based on Flexible Decoupling Beams

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Abstract:

To overcome the shortcomings of existing technology and achieve a type of shaft and sleeve assembly in navigate with high coaxial requirements, a novel coaxial positioning system is presented based on the flexible decoupling beams and micro-vision system. In order to meet the adjustments online and maintain posture of the shaft and sleeve, a flexible beams structure with pattern of “square lattice” is designed. Combined with micro motorized X-Y stage and clamps, the structure achieves exact coaxial positioning precision and station keeping function. The mechanics theory and finite element method are used to analysis and simulate the beams. The Hough algorithm is applied in the micro-vision system to realize the precise coaxial positioning of real-time detection and calculation. Experiments show that the coaxial positioning accuracy is better than 8μm, and the positioning device could guarantee the realization of positioning assembly in practical applications.

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Periodical:

Advanced Materials Research (Volumes 490-495)

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2141-2145

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Online since:

March 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] D. X. Liu, F. Z. Sun, X. L. Huang. Method of computer-aided selection for the aviation precision coupling assembly, Machinery, Vol. 6(2010), pp.80-82.

Google Scholar

[2] S. Allegro, C. Chanel, J. Jacot. Autofocus for automated microassembly under a microscope, Image Processing, Vol. 2(1996), pp.677-680.

DOI: 10.1109/icip.1996.560969

Google Scholar

[3] L. N. Sun, L. G. Chen, P. K. Liu, et al. Some issues on the micro-vision system for a micromanipulation robot, Opt. Precision Eng., Vol. 10(2002), pp.171-175.

Google Scholar

[4] R. L. Duan, H. B. Duan, Q. X. Li, et al. Micro-assembly autofocusing system based on image processing, Opt. Precision Eng., Vol. 14(2006), pp.468-472.

Google Scholar

[5] X. Y. Liu, W. H. Wang, Y. Sun. Autofocusing for automated microscopic evaluation of blood smear and pap smear, Engineering in Medicine and Biology Society, 2006, pp.4718-4721.

DOI: 10.1109/iembs.2006.259263

Google Scholar

[6] L. G. Chen, M. Y. Wang, Z. L. Yang, W. B. Rong. Fast autofocus method for microscopic computer vision, Opt. Precision Eng., Vol. 18(2010), pp.1361-1366.

Google Scholar