关键词: 大深宽比组件, 装配间隙, 数字化测量, 点云数据处理, 模型配准

Abstract: With the development of modern electronic products towards high integration and multifunctionality,the demonds for assembly precision and reliability have increasingly escalated. This is particularly evident in electronic products such as radar antennas,where measuring the assembly gaps of components with large aspect ratios has become a technical challenge. Traditional contact measurement methods are inefficient and incapable of capturing the overall internal gap distribution,while existing digital measurement techniques face limitations in acquiring internal data for gaps with large aspect ratios. A digital measurement method for the assembly gaps of components with large aspect ratios was proposed,based on point cloud data processing and theoretical model registration method. Through efficient clustering segmentation,feature extraction,and registration algorithms,the method achieves the reconstruction and visualization of gap distribution in invisible regions. Experimental results demonstrate that the proposed method significantly enhances the accuracy and efficiency of gap measurement,offering a novel solution for the digital inspection of assembly gaps in components with large aspect ratios.

Key words: large depth-to-width ratio modules, assembly gaps, digital measurements, point cloud data processing, model registration