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飞机结构件自动编程中转角构建方法及算法

崔志伟 郑国磊

崔志伟, 郑国磊. 飞机结构件自动编程中转角构建方法及算法[J]. 北京航空航天大学学报, 2016, 42(12): 2730-2737. doi: 10.13700/j.bh.1001-5965.2015.0810
引用本文: 崔志伟, 郑国磊. 飞机结构件自动编程中转角构建方法及算法[J]. 北京航空航天大学学报, 2016, 42(12): 2730-2737. doi: 10.13700/j.bh.1001-5965.2015.0810
CUI Zhiwei, ZHENG Guolei. Corner building method and algorithm of automatic programing for aircraft structural parts[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(12): 2730-2737. doi: 10.13700/j.bh.1001-5965.2015.0810(in Chinese)
Citation: CUI Zhiwei, ZHENG Guolei. Corner building method and algorithm of automatic programing for aircraft structural parts[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(12): 2730-2737. doi: 10.13700/j.bh.1001-5965.2015.0810(in Chinese)

飞机结构件自动编程中转角构建方法及算法

doi: 10.13700/j.bh.1001-5965.2015.0810
基金项目: 

国家重大科技专项 2012ZX04010051

辽宁省航空联合基金 2014028026

详细信息
    作者简介:

    崔志伟, 男, 硕士研究生。主要研究方向:计算几何、数字化制造、数字化装配。Tel.:18813170573, E-mail:18813170573@163.com

    通讯作者:

    郑国磊, 男, 博士, 教授, 博士生导师。主要研究方向:智能CAD、自动数控编程技术、工装智能设计。Tel.:010-82339128, E-mail:zhengguolei@buaa.edu.cn

  • 中图分类号: V262.3+3

Corner building method and algorithm of automatic programing for aircraft structural parts

Funds: 

National Science and Technology Major Project 2012ZX04010051

Aviation Joint Fund of Liaoning Province of China 2014028026

More Information
  • 摘要:

    针对飞机结构件转角数控(NC)加工编程效率低、工作量大、质量不稳定等问题,提出一种基于转角面的自动扩展技术,并结合工艺知识建立加工模型,为实现转角数控加工自动编程技术奠定了基础。首先定义了转角、转角面、转角加工模型及转角加工干涉域等概念;然后给出了自动扩展、侧转面与切元计算、干涉域构建等技术,实现转角加工模型的构建;最后,基于以上研究开发了转角数控加工自动编程系统,并初步应用于某型号飞机结构件的生产,应用结果表明,该技术显著提高了转角数控加工编程的效率和质量,降低了编程工作量。

     

  • 图 1  转角

    Figure 1.  Corner

    图 2  转角面

    Figure 2.  Rounded corner face

    图 3  转角加工模型

    Figure 3.  Processing model of corner

    图 4  切元

    Figure 4.  Cutting element

    图 5  干涉域

    Figure 5.  Interference region

    图 6  左干涉域

    Figure 6.  Left interference region

    图 7  右干涉域

    Figure 7.  Right interference region

    图 8  加工模型构建流程

    Figure 8.  Flowchart of processing model building

    图 9  转角面自动扩展技术算法流程

    Figure 9.  Algorithm flowchart of auto-extended technology for rounded corner face

    图 10  转角面计算

    Figure 10.  Rounded corner face calculation

    图 11  截面线生成

    Figure 11.  Section curves creation

    图 12  转角示例

    Figure 12.  Corner sample

    图 13  投影向量

    Figure 13.  Projected vector

    图 14  更新顶点

    Figure 14.  Update vertices

    图 15  转角夹角

    Figure 15.  Corner angle

    图 16  加工区域轴向外轮廓

    Figure 16.  Axial-profile of machining region

    图 17  切边

    Figure 17.  Cutting edge

    图 18  干涉域构建流程

    Figure 18.  Flowchart of interference region building

    图 19  右干涉域计算结果

    Figure 19.  Calculation results of right interference region

    图 20  转角加工模型实例

    Figure 20.  Case of processing model of corner

    图 21  转角加工刀轨仿真

    Figure 21.  Tool path simulation of corner machining

    表  1  转角特征计算正确率

    Table  1.   Calculation accuracy of corner feature

    类型tc正确率/%
    连通侧转面098.5
    198.2
    -198.2
    297.5
    非连通侧转面097.2
    196.5
    -196.5
    295.1
    下载: 导出CSV

    表  2  转角加工数控编程工作量及耗时对比

    Table  2.   Workload and time-consumption of corner machining numerical control programing

    类型tc平均交互次数平均耗时/s效率/%
    手工自动手工自动ηtηw
    连通侧转面0401120199.297.5
    1601180199.498.3
    -1601180199.498.3
    2701240199.698.6
    非连通侧转面0403120298.392.5
    1603180298.995.0
    -1603180298.995.0
    2703240299.295.7
    下载: 导出CSV
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出版历程
  • 收稿日期:  2015-12-08
  • 录用日期:  2016-01-08
  • 网络出版日期:  2017-12-20

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