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http://dx.doi.org/10.3795/KSME-A.2017.41.10.949

Study on the 3D Assembly Inspection of Two-Step Variable Valve Lift Modules Using Laser-Vision Technology  

Nguyen, Huu-Cuong (Dept. of Mechanical Engineering, University of Ulsan)
Kim, Do-Joong (Dept. of Mechanical Engineering, University of Ulsan)
Lee, Byung-Ryong (Dept. of Mechanical Engineering, University of Ulsan)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.41, no.10, 2017 , pp. 949-957 More about this Journal
Abstract
A laser-vision-based height measurement system is developed and implemented for the inspection of two-step variable valve lift module assemblies. The proposed laser-vision sensor module is designed based on the principle of laser triangulation. This paper summarizes the work on 3D point cloud data collection and height difference measurements. The configuration of the measurement system and the proposed height measurement algorithm are described and analyzed in detail. Additional measurement experiments on the height differences of valves and lash adjusters of a two-step variable valve lift module were implemented repeatedly to evaluate the accuracy and repeatability of the proposed measurement system. Experimental results show that the proposed laser-vision-based height measurement system achieves high accuracy, repeatability, and stabilization for the inspection of two-step variable valve lift module assemblies.
Keywords
Laser-Vision; 3D Inspection; Valve Lift Module; 3D Measurement; Height Measurement;
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