Evaluation Index Framework of Optimal Matching Position for Large Components Automatic Assembly

doi:10.3901/JME.2017.23.137

Abstract

Abstract: Products such as rocket, aircraft, and ship have complex structures and demand for high quality. The final assembly process of these components effects heavily on the quality of the product. Traditional assembly processes of such product rely heavily on manual experience, special tools and have low level of automation. Determining the optimal matching pose of two large components is one of the key points to improve the quality of the assembly process. Based on the advanced measuring and positioning equipment, a comprehensive evaluation index framework for the optimal matching pose of the large component is established. Mathematic models of matching variations of commonly used geometric characteristics are established, including point-set matching, line alignment, plane matching, surface matching and geometrical constraints etc. Manufacturing and assembly accuracy of large component is analyzed and used as an effective guidance in the assembly process. Two large component is assembled under the guidance of such evaluation index framework in laboratory, and the result and effectiveness is presented and analyzed.

Key words: alignment, automation, evaluation index, large component, matching

CLC Number:

TH161

WANG Hao, CHEN Genliang, HUANG Shunzhou, CHEN Kunyong. Evaluation Index Framework of Optimal Matching Position for Large Components Automatic Assembly[J]. Journal of Mechanical Engineering, 2017, 53(23): 137-146.

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