摘要
自动钻铆系统已经广泛应用于飞机壁板铆接装配过程中,由于定位误差、装夹误差、托架自重变形等因素的影响,壁板的实际点位与理想点位存在差距,影响壁板连接准确度。通过分析自动钻铆流程,确定自动钻铆误差来源,提出自动钻铆定位误差双向获取方法。首先,在z向通过有限元分析,得到围框变形数据,建立围框与钻铆点位坐标映射关系;其次,在xy向通过获取上铆头与实际定位点偏差的方法,生成xy向误差数据;最后,给出了离线补偿的步骤和流程,以某型机翼壁板为实例,验证本文方法的有效性。
The application of automatic drilling/riveting(ADR) system realizes automation of the wing panel riveting assembly.However,a major obstacle to wing ADR in the past is the variation between ideal point coordinate in the model and the point position on the panel.The variation may come from the combining affect of locating error,clamping error,and self-weight deformation of bracket system.ADR process and error source are analyzed.The method of bi-directional obtaining is represented in details.Firstly,the error of z-direction is gained by establishing mapping between deformation of frame and the point on the panel,and deformation of frame is gained by finite element analysis.Secondly,the error of xy-direction comes from locating error of measuring the deviation between upper-riveting head and actual locating points.Then the offline compensation flow is shown step by step.Finally implementation on wing panel riveting is introduced,and the results demonstrate the functionality of the method.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2012年第3期631-636,共6页
Systems Engineering and Electronics
基金
国家高技术研究发展计划(863计划)重大项目(2007AA041903)资助课题
关键词
自动钻铆
双向获取
离线补偿
有限元分析
automatic drilling/riveting(ADR)
bi-directional obtaining
offline compensation
finite element analysis
