PCB焊点的机器视觉精密定位系统  

Machine Vision System Based Precise Positioning for PCB Solder Joints

作　　者：周军[1] 许烁[1,2] 屠大维[1,2] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072 [2]上海市智能制造及机器人重点实验室,上海200072

出　　处：《机械制造与自动化》2016年第3期172-175,共4页Machine Building & Automation

基　　金：国家自然科学基金(51075252;61203351);上海高校青年教师培养资助计划(B.37-0109-12-004)

摘　　要：针对工业上PCB焊点定位问题,搭建了PCB焊点的机器视觉精密定位系统,提出了包括硬件系统、软件系统和图像处理算法的技术方案。通过亚像素级焊点轮廓检测、运动台四轴联动控制等手段,硬件、软件、算法三位一体相结合,提高系统的定位精度。开展了精度标定实验和焊点定位实验,证明了该系统在定位速度和精度上的可行性。In order to solve the problem of positioning of the PCB （ printed circuit board） solder joint in industry, a machine vision based high-precision positioning system is established. A scheme composed of a hardware sub-system, a software sub-system, image processing algorithms, and their technical solution is proposed. By means of sub-pixel level contour detection of the soldier joints, 4-axis simultaneous control of the motion stage, the integration of hardware, software and algorithms, the positioning preci- sion of the system is greatly improved. Experiments of precise calibration and solder joints positioning are conducted, which verify the positioning speed and precision of the system.

关 键 词：机器视觉 图像处理 PCB焊点 精密定位 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]