现代电子技术2026，Vol.49Issue(9)：98-106,9.DOI:10.16652/j.issn.1004-373x.2026.09.015
基于视觉识别的液压拉伸器四轴对准装置
Visual recognition based hydraulic tensioner four axis alignment device
摘要
Abstract
Bolts and nuts are important fasteners for heavy industry,and bolt tensioners are widely used in bolt pretightening due to their uniform force distribution and accurate control over the bolt pretightening force.However,the positioning accuracy required for the tensioner during operation is high,so it is necessary to keep the axis of the tensioner aligned with the bolt.The article designs a tensioner alignment device based on visual recognition.The depth camera image is input into YOLOv5 to obtain sub images,which are then subjected to image enhancement and threshold segmentation based on annealing algorithm.After that,the precise pose and center coordinates of the bolt are obtained by hexagonal fitting based on Hough transform.Finally,the coordinate information of the bolt is transmitted to the actuator to drive the motor for positioning.Experiments verified that the image positioning accuracy and device positioning accuracy can be within 1.5 mm,and the target recognition accuracy can reach over 90%.The designed mechanical structure can complete the alignment work satisfactorily.关键词
霍夫变换/螺栓中心定位/YOLOv5/四轴对准装置/阈值分割/退火算法Key words
Hough transform/bolt center positioning/YOLOv5/four axis alignment device/threshold segmentation/annealing algorithm分类
信息技术与安全科学引用本文复制引用
高升,李锐鹏,潘双英,石文波..基于视觉识别的液压拉伸器四轴对准装置[J].现代电子技术,2026,49(9):98-106,9.基金项目
国家自然科学基金项目(52005473) （52005473）
浙江省自然科学基金项目(LQ20E050018) （LQ20E050018）
