基于图像处理技术的凸轮盘检测方法研究  

Research on measurement method for disk cam based on image processing technology

作　　者：王华敏[1] 张爱梅[1] 张强[1] 陈鹏[1] 

机构地区：[1]郑州大学机械工程学院,郑州450001

出　　处：《现代制造工程》2017年第2期117-121,共5页Modern Manufacturing Engineering

摘　　要：为满足凸轮盘的在线检测需求,提出了基于图像处理技术的凸轮盘检测方法。首先对凸轮盘图像进行放大、形态学滤波、模糊处理、阈值分割和目标区域提取等预处理,得到凸轮盘二值图像;然后根据内轮廓最小包围矩形进行初调,根据精确直线拟合进行微调,将凸轮盘摆放至合适的角度位置;最后,完成凸轮盘回转中心坐标的求取,对凸轮盘外轮廓点进行采样后与设计值进行对比,并输出检测结果。结果表明:该方法检测效率高、操作简单,能满足凸轮盘在线检测的各项要求。To satisfy the demand of online detection, a new measurement method for disk cam based on image processing technolo- gy is proposed. First of all, the image is preprocessed with enlarging, morphological filtering, smoothing, threshold segmenting and object extracting, and the binary image of the disk cam is obtained. Secondly, the image is preliminarily adjusted according to the minimum bounding box of the inner contour, fine-tuned based on precisely linear fitting, to place the disk cam in proper position. Finally,the coordinates of the disk cam＇s rotation center is calculated, and points in the outer contour of the disk cam are sam- pled to compared with design values, and the result is output after detection. The results show that it can satisfy the requirements of online detection owing to its high efficiency and simplified operation.

关 键 词：凸轮检测 图像处理 角度调整 轮廓采样 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]