基于特征的数控编程技术在航空企业的推广应用  

Applications of Feature-Based CNC Programming Technology in Aviation Enterprises

作　　者：李强[1] 李迎光[1] 刘旭[1] 汤立民[2] 

机构地区：[1]南京航空航天大学机电学院,南京210016 [2]中航工业成都飞机工业(集团)有限责任公司数控加工厂,成都610091

出　　处：《航空制造技术》2016年第6期58-63,共6页Aeronautical Manufacturing Technology

基　　金：国家科技重大专项(2012ZX04010041)

摘　　要：针对国内航空企业飞机结构件数控编程中存在的重复工作量大、效率低、质量不稳定、规范性差等问题,通过面向多主机厂推广基于特征的数控编程技术,切实提高飞机结构件数控编程的效率与质量。首先概述了基于特征的快速程编(FBM_NUAA)系统的整体架构,并且介绍了基于特征的数控编程技术在多家主机厂中的推广与应用情况,以及前期推广中遇到的问题,并提出了解决方案。根据多主机厂多机型过百项飞机结构件的实际应用结果表明采用基于特征的快速程编系统进行数控编程,刀轨平均自动生成率超过90%,编程时间较传统编程方式平均缩短70%以上。The most traditional way for aircraft structuralparts CNC programming in current manufacturing industry is artificial-dependent based on existing commercial CAM systems which will induce problems like massive repeat work- load, low efficiency, unstable quality and lack in standard. Feature based CNC programming technology has been proved to be practical in facilitating automation and standard by integrating geometry with standard machining knowledge. In this pa- per, the framework of a feature based CNC programming system named FBM_NUAA is first summarized. Then challenges and proposed solutions during the wide application of feature based CNC programming technologyin aviation enterprises are introduced. FBM_NUAA system is used for automatic CNC programming in more than 100 real aircraft structural parts belonging to different kinds of airplane in different aviation enterprises. The result shows that more than 90% tool paths are generated automatically and the total time for CNC programming is reduced to 70% on average.

关 键 词：飞机结构件 数控编程 特征技术 FBM_NUAA 系统应用 

分 类 号：V260.6[航空宇航科学与技术—航空宇航制造工程]