基于互相关模板匹配算法的片式电子元器件自动检测与应用
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1.贵州航天计量测试技术研究所,贵阳 550009;2.贵州省基础零部件及装备质量检测与评价全省重点实验室,贵阳 550009

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Automatic Detection and Application of Chip Electronic Components Based on Normalized Cross-Correlation Algorithm
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1.Institute of Guizhou Aerospace Measuring and Testing Technology, Guiyang 550009, China;2.Guizhou Provincial Key Laboratory for Basic Components and Equipment Quality Inspection and Evaluation, Guiyang 550009, China

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    摘要:

    针对传统片式电子元器件人工检测效率低、误检率高等问题,提出了一种基于互相关模板匹配算法的片式电子元器件自动检测方法与系统。该系统利用互相关模板匹配算法,并结合四轴机械手视觉引导和底拍二次定位技术,实现了元器件的高效识别与精准抓取,并创新性地开发了旋转中心标定算法,有效补偿真空吸嘴同轴度误差。系统可兼容片式钽电容、0402封装瓷介电容器及SOD-323表贴二极管等器件,达到0.008 5 mm的定位精度。经实验验证,单次识别100只元器件耗时仅68 ms,正反面及极性识别准确率达100%。旋转中心标定使同轴度误差从0.4 mm降至0.008 mm,器件损伤率和抛料率分别控制在0.01%与0.02%,放料成功率为99.98%。相较传统人工检测,该系统检测效率提升5倍以上,为电子元器件自动检测提供了高精度、高可靠性的技术解决方案,推动了机器视觉在工业检测领域的应用创新。

    Abstract:

    To address the issues of low efficiency and high error rate associated with traditional manual inspection methods for chip electronic components, this paper proposes an automatic detection method and system based on the normalized cross-correlation algorithm. The proposed system integrates the normalized cross-correlation algorithm with a vision-guided four-axis robotic arm and a secondary bottom-view positioning technique to achieve efficient recognition and precise grasping of components. Additionally, an innovative rotational center calibration algorithm is developed to effectively compensate for coaxiality errors in vacuum nozzles. The system is compatible with various types of electronic components, including chip tantalum capacitors, ceramic capacitors in 0402 packages, and SOD-323 surface-mounted diodes, achieving a positioning accuracy of 0.008 5 mm. Experimental results demonstrate that identifying 100 components takes only 68 ms, with a 100% accuracy rate for orientation and polarity recognition. The rotational center calibration reduces coaxiality errors from 0.4 mm to 0.008 mm, component damage and rejection rates are reduced to 0.01% and 0.02%, respectively, and the successful placement rate reaches 99.98%. Compared with the traditional manual inspection, the system increases detection efficiency by over five times, providing a high-precision and high-reliability technical solution for automatic inspection of electronic components and significantly advancing the application of machine vision technology in industrial inspection.

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王红彬,王伟伟,杨松翰,朱义杰,孙毅,邹宜桢,成建宏.基于互相关模板匹配算法的片式电子元器件自动检测与应用[J].数据采集与处理,2025,40(4):1107-1120

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  • 收稿日期:2024-07-22
  • 最后修改日期:2024-11-08
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  • 在线发布日期: 2025-08-15