摘要
针对航空航天产品数字化装配工装定检周期难以确定、装配作业状态动态变化、人工误操作等因素引起的产品装配超差及装配周期难以保障等问题,为提升装配工装几何量、物理量感知及预测能力,以及保障装配质量的能力,对工装的工作状态感知/监测/评估及装配定位适应性控制技术进行研究。具体地,在工装作业前的定检与针对性维护、工装作业时的状态实时监控分析与稳定性评价、工装使用过程中的力位与多轴协调控制、产品装配超差的降低等方面,开展数字化装配工装测量传感规划、工装应变及精度预测、工装服役状态描述及稳定性评估、现场定位适应性控制等问题研究,并解析装配工装宏微观作业状态评估、面向装配精度保障的多末端精度协调等关键技术。最后以航空弱刚性壁板试验件的多点柔性装配为例,分析面向产品精准装配的工装定位精度保障、以及基于实际工况状态的工装适应性装配及壁板外形装配效果,为装配质量的精确与主动控制奠定工装基础。
The difficulty of determining regular inspection cycle of digital assembly tooling,dynamic change of assem⁃bly condition,and workers’misoperation,would lead to the out of tolerance for assembly,and cause the difficulty to guarantee assembly cycle.To improve the ability to perceive and predict the geometric and physical quantities of as⁃sembly tooling,and enhance the ability to guarantee assembly quality,the research on assembly tooling working con⁃dition perception/monitoring/evaluation and adaptive control technologies of assembly positioning are carried out in this paper.As for regular inspection and targeted maintenance before tooling operations,real time monitoring analysis and stability assessment of tooling operation,coordinated control of force position and multi axis in the process of tooling operation,and reduction on out of assembly tolerance,etc,key research on sensing planning for digital assembly tooling measurement,tooling strain and accuracy prediction,tooling service condition description and stability assess⁃ment,and site positioning adaptive control were carried out.Then the key technologies of macro and micro locating job condition assessment on assembly tooling,and multi-effectors’deviation coordination for the assembly accuracy guarantee is proposed.Finally,the multi-point flexible assembly of aviation weak rigid panel test component is taken as example to present the tooling’s positioning precision guarantee for product assembly,the tooling’s adaptive ad⁃justment based on the practical working condition,and the panel’s assembly shape,which laid the tooling foundation for the precision and active control in assembly quality.
作者
郭飞燕
刘检华
肖庆东
肖世宏
王仲奇
GUO Feiyan;LIU Jianhua;XIAO Qingdong;XIAO Shihong;WANG Zhongqi(School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China;School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China;AVIC Manufacturing Technology Institute,Beijing 100024,China;School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China)
出处
《航空学报》
EI
CAS
CSCD
北大核心
2023年第16期269-288,共20页
Acta Aeronautica et Astronautica Sinica
基金
国家自然科学基金(52175450,51805502)
国防基础科研项目(JCKY2019205B002,JCKY2018205A001)。
关键词
数字化装配工装
定位精度
状态稳定性
自适应控制
装配质量
digital assembly tooling
positioning accuracy
status stability
adaptive control
assembly quality
