12 January 2018 Automated inspection of gaps on the free-form shape parts by laser scanning technologies
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Abstract
In industrial manufacturing processes, the dimensional inspection of the gaps on the free-form shape parts is critical and challenging, and is directly associated with subsequent assembly and terminal product quality. In this paper, a fast measuring method for automated gap inspection based on laser scanning technologies is presented. The proposed measuring method consists of three steps: firstly, the relative position is determined according to the geometric feature of measuring gap, which considers constraints existing in a laser scanning operation. Secondly, in order to acquire a complete gap profile, a fast and effective scanning path is designed. Finally, the range dimension of the gaps on the free-form shape parts including width, depth and flush, correspondingly, is described in a virtual environment. In the future, an appliance machine based on the proposed method will be developed for the on-line dimensional inspection of gaps on the automobile or aerospace production line.
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Sen Zhou, Jian Xu, Lei Tao, Lu An, Yan Yu, "Automated inspection of gaps on the free-form shape parts by laser scanning technologies", Proc. SPIE 10621, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 1062116 (12 January 2018); doi: 10.1117/12.2292509; https://doi.org/10.1117/12.2292509
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