摘要
飞机结构存在大量的标准连接孔,为了保证飞机装配质量,需要对锪窝孔的制孔质量进行检测。基于机器人或机床的视觉检测设备存在定位精度低、局部位置难到达、易受环境光影响等问题,提出了一种面向航空锪窝孔制孔质量的手持式视觉检测方法,开发了锪窝孔孔径及窝深的亚像素检测算法,设计了一种手持式视觉检测设备,对机械结构、硬件系统和软件系统进行了详细阐述。以航空结构标准试验件为对象,将本方法所测孔径和锪窝深度与第三方认证机构的测试结果进行了对比。结果表明,本方法孔径精度测量精度优于0.01 mm,锪窝深度测量精度优于0.1 mm。设计的手持式视觉检测设备检测精度高、应用范围广且不受环境光的影响。
In aircraft structures,there are a lot of standard connection holes.In order to ensure the assembly quality,it is necessary to detect the quality of the countersink holes.The visual inspection equipment based on robot or machine tool has the problems of low positioning accuracy,difficult to reach local position and easy to be affected by ambient light.In this study,a hand-held visual detection method for checking the quality of the countersink holes is proposed.The sub-pixel detection algorithm for the diameter and depth of the countersink is developed,and a hand-held visual detection device is designed.The mechanical structure,hardware system and software system are described in detail.The diameter and the countersink depth measured by this method are compared with the test results of the third party certification.The results show that the accuracy of diameter measurement is better than 0.01 mm,and the accuracy of depth is better than 0.1 mm.The handheld vision detection equipment designed in this study has high detection accuracy,wide application and is not affected by ambient light.
作者
张辉
潘新
李海伟
杜杰
罗志光
郭飞燕
ZHANG Hui;PAN Xin;LI Haiwei;DU Jie;LUO Zhiguang;GUO Feiyan(AVIC Shenyang Aircraft Industrial(Group)Co.,Ltd.,Shenyang 110850,China;University of Science and Technology Beijing,Beijing 100083,China)
出处
《航空制造技术》
CSCD
北大核心
2022年第18期71-78,共8页
Aeronautical Manufacturing Technology
基金
国家自然科学基金(52175450、51805502)
国防基础科研项目(JCKY2019205A003)。
关键词
锪窝孔
亚像素
手持式
视觉检测
飞机装配
Countersink hole
Sub-pixel
Hand-held type
Visual inspection
Aircraft assembly
作者简介
张辉,高级工程师,博士,主要研究方向为飞行器制造。
