农用发动机凸轮轴凸轮表面缺陷检测系统设计  

Design of Detection System for Camshaft Surface Defects of Agricultural Engine

作　　者：周康康 徐刚强 胡火明 曹毅 蒋文龙 ZHOU Kangkang;XU Gangqiang;HU Huoming;CAO Yi;JIANG Wenlong(Technology Center,Zhejiang Boxing Industry&Trade Co.,Ltd.,Jinhua Zhejiang 321016)

机构地区：[1]浙江博星工贸有限公司技术中心,金华浙江321016

出　　处：《河南科技》2021年第29期46-49,共4页Henan Science and Technology

基　　金：金华经济技术开发区人才项目(2021-01);浙江省重点研发计划项目(2019C01128)。

摘　　要：本研究设计了一个可行性强并且稳定的凸轮轴检测系统,通过电机使凸轮轴旋转一定角度后停下,使用摄像头进行拍摄。凸轮轴图片进行阈值二值化后,提取凸轮轴凸轮表面轮廓,得到凸轮轴凸轮表面区域。然后对凸轮轴凸轮表面区域进行缺陷轮廓提取,得到表面缺陷轮廓,通过对表面缺陷的大小和周长进行筛选,实现缺陷分类。本研究还对检测所用的四自由度机器臂求出正、逆运动学解,通过图像处理技术找出代表凸轮轴位姿的向量,并通过控制机械臂的方式实现凸轮轴在该系统中的自动安装、拆卸和分类放置。In this study, a feasible and stable camshaft detection system is designed. The camshaft is rotated by the motor at a certain angle and stopped, and the camera is used for shooting. After the threshold binarization of camshaft image and the extraction of camshaft cam surface contour, the camshaft cam surface area is obtained. Then the surface defect contour is extracted from the camshaft surface area, and the surface defect contour is obtained. The defect classification is realized after screening the size and circumference of the surface defect. This study also obtains the forward and inverse kinematics solutions of the four degree of freedom manipulator used in the detection, finds out the vector representing the position and attitude of the camshaft through image processing technology, and realizes the automatic installation, disassembly and classified placement of the camshaft in the system by controlling the manipulator.

关 键 词：缺陷检测 缺陷分类 凸轮轴 机械臂 

分 类 号：TK413[动力工程及工程热物理—动力机械及工程]