The precision measurement and assembly for miniature parts based on double machine vision systems

X. D. Wang; L. F. Zhang; M. Z. Xin; Y. Q. Qu; Y. Luo; T. M. Ma; L. Chen

doi:10.1117/12.2182657

6 March 2015 The precision measurement and assembly for miniature parts based on double machine vision systems

X. D. Wang, L. F. Zhang, M. Z. Xin, Y. Q. Qu, Y. Luo, T. M. Ma, L. Chen

Proceedings Volume 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation; 944655 (2015) https://doi.org/10.1117/12.2182657
Event: International Symposium on Precision Engineering Measurement and Instrumentation, 2014, Changsha/Zhangjiajie, China

Abstract

In the process of miniature parts’ assembly, the structural features on the bottom or side of the parts often need to be aligned and positioned. The general assembly equipment integrated with one vertical downward machine vision system cannot satisfy the requirement. A precision automatic assembly equipment was developed with double machine vision systems integrated. In the system, a horizontal vision system is employed to measure the position of the feature structure at the parts’ side view, which cannot be seen with the vertical one. The position measured by horizontal camera is converted to the vertical vision system with the calibration information. By careful calibration, the parts’ alignment and positioning in the assembly process can be guaranteed. The developed assembly equipment has the characteristics of easy implementation, modularization and high cost performance. The handling of the miniature parts and assembly procedure were briefly introduced. The calibration procedure was given and the assembly error was analyzed for compensation.

Citation Download Citation

X. D. Wang, L. F. Zhang, M. Z. Xin, Y. Q. Qu, Y. Luo, T. M. Ma, and L. Chen "The precision measurement and assembly for miniature parts based on double machine vision systems", Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 944655 (6 March 2015); https://doi.org/10.1117/12.2182657

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