基于斜齿轮端面与侧面图像处理的螺旋角测量方法  

Helix angle measurement method based on endface and side image processing of helical gear

作　　者：宋栓军[1] 王启宇 贾秀海 侯中原 王茹宇 SONG Shuanjun;WANG Qiyu;JIA Xiuhai;HOU Zhongyuan;WANG Ruyu(School of Mechanical and Electrical Engineering,Xi’an Polytechnic University,Xi’an 710048,China;School of Computer Engineering,Shanxi Polytechnic College,Taiyuan 030000,China)

机构地区：[1]西安工程大学机电工程学院,陕西西安710048 [2]山西职业技术学院计算机工程系,山西太原030000

出　　处：《西安工程大学学报》2021年第3期81-85,共5页Journal of Xi’an Polytechnic University

基　　金：国家自然科学基金青年科学基金项目(61701384);陕西省重点研发计划项目(2021GY-337)。

摘　　要：斜齿轮螺旋角测量难度高、测量过程复杂,为了提高测量精度与效率,提出了利用双相机采集斜齿轮端面与侧面图像并进行图像处理来测量斜齿轮螺旋角的方法。将2个相机互相垂直放置,分别进行图像采集,通过求取斜齿轮端面图像的最大内接圆与最小外接圆来测得齿顶圆直径、分度圆直径等参数,对侧面图像进行角点检测并计算出齿顶圆螺旋角,根据斜齿轮齿顶圆螺旋角与分度圆螺旋角的关系,进一步计算出斜齿轮的螺旋角大小。实验结果表明,该测量方法测量结果平均相对误差为0.65%,小于人工测量的平均相对误差1.33%,也小于单相机方法测量的平均相对误差0.8%,测量所用时间为4.58 s,均小于其他2种测量方法。The helix angle measurement of helical gear is difficult and the measurement process is complex.In order to improve the measurement accuracy and efficiency,the method of measuring helix angle of helical gear is proposed,by using two cameras to collect the images of the helical gear end face and side face to process.The two cameras were placed vertically and the images were captured,by obtaining the maximum inscribed circle and minimum circumscribed circle of the helical gear end face image,addendum circle diameter,reference circle diameter and other parameters were measured.Corner detection was performed on the side image,the helix angle of the addendum circle was measured,and the helix angle of the helical gear was calculated according to the relationship between the helix angle of the addendum circle and the helix angle of the reference circle.The experimental results show that the average relative error of this method is 0.65%,which is smaller than the average relative error of manual measurement of 1.33%,and smaller than the average relative error of single camera method of 0.8%,and the measurement time is 4.58 s,which is smaller than the other two measurement methods.

关 键 词：图像处理 斜齿轮 螺旋角 分度圆 角点检测 

分 类 号：TH16[机械工程—机械制造及自动化]