智能移动三坐标辅助定位的自适应控制方法

发布时间：2018-03-04 20:14

本文选题：激光跟踪仪　切入点：直角三坐标伺服机构　出处：《南京航空航天大学学报》2016年01期 　论文类型：期刊论文

【摘要】：飞机部件的外形测量与误差评估是提升飞机装配质量的关键。针对测量工作要求高精度、高效率和无需专用工装的情况,同时针对被测对象外形尺寸大、各部位测量规范不同等难点,提出一种基于激光跟踪仪的智能移动三坐标辅助定位自适应控制技术。该技术以激光跟踪仪作为测量工具,以直角三坐标伺服机构作为靶标的辅助定位装置,通过对直角三坐标伺服机构及导航小车进行任务规划与优化;同时激光跟踪仪实时反馈靶标目标位置,从而以最优路径的方式实现对测量机构多站位自主移动的全闭环自适应控制,提高了靶标的定位精度及测量效率。本文在线对测量数据进行了快速处理,得出了误差分布图,并精确地反映了测量点位的误差。实验结果表明:该方法可实现大尺寸部件的高精度快速测量,满足飞机大部件的测量要求。
[Abstract]:The shape measurement and error evaluation of aircraft components is the key to improve the assembly quality of aircraft. In this paper, an intelligent moving three-coordinate auxiliary positioning adaptive control technology based on laser tracker is proposed, in which laser tracker is used as measuring tool. Taking the right-angle three-coordinate servo mechanism as the auxiliary positioning device of the target, the task planning and optimization of the right-angle three-coordinate servo mechanism and the navigation vehicle are carried out, and the laser tracker feedback the target position in real time. Thus the full closed loop adaptive control of multi-station autonomous movement of measuring mechanism is realized by the way of optimal path, and the positioning accuracy and measuring efficiency of target are improved. In this paper, the measurement data are processed quickly, and the error distribution map is obtained. The experimental results show that this method can achieve high precision and fast measurement of large size components and meet the requirements of aircraft large parts.
【作者单位】：南京航空航天大学机电学院;
【基金】：国家自然科学基金(51105205)资助项目航空科学基金(2013ZE52067)资助项目
【分类号】：V262.4

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