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曲面孔位检测方法研究

刘增艺 江开勇 林俊义

刘增艺, 江开勇, 林俊义. 曲面孔位检测方法研究[J]. 机械科学与技术, 2015, 34(7): 1048-1053. doi: 10.13433/j.cnki.1003-8728.2015.0715
引用本文: 刘增艺, 江开勇, 林俊义. 曲面孔位检测方法研究[J]. 机械科学与技术, 2015, 34(7): 1048-1053. doi: 10.13433/j.cnki.1003-8728.2015.0715
Liu Zengyi, Jiang Kaiyong, Lin Junyi. Research on Detection Method of Holes Position for Curved Surface[J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(7): 1048-1053. doi: 10.13433/j.cnki.1003-8728.2015.0715
Citation: Liu Zengyi, Jiang Kaiyong, Lin Junyi. Research on Detection Method of Holes Position for Curved Surface[J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(7): 1048-1053. doi: 10.13433/j.cnki.1003-8728.2015.0715

曲面孔位检测方法研究

doi: 10.13433/j.cnki.1003-8728.2015.0715
基金项目: 

国家科技支撑计划项目(2012BAF12B15)、国家自然科学基金项目(50975100,51175191,51105150)及福建省自然科学基金项目(2011H2003,2013J01190,2011J01314)资助

详细信息
    作者简介:

    刘增艺(1988-),硕士研究生,研究方向为计算机视觉,nqzlzy@163.com

    通讯作者:

    江开勇,教授,博士,博士生导师,jiangky@hqu.edu.cn

Research on Detection Method of Holes Position for Curved Surface

  • 摘要: 针对汽车冲压件因回弹因素的影响,使定位孔位置关系变化而无法装配的问题,提出了一种在冲压件自由曲面上检测圆孔轴向、半径及孔位关系的方法。对曲面上圆孔边缘的三维点进行最小二乘平面拟合以获取投影的初始平面;将边缘点投影到该平面上,并进行坐标系转换获得投影二维点,以便求取其最小二乘圆半径。当圆半径不满足判定条件时,对最小二乘平面进行空间旋转,重新投影迭代计算直到满足判定条件为止。此时最小二乘平面的法向即为圆孔轴向,投影二维点的最小二乘圆半径即为圆孔半径。在获取曲面圆孔轴向及半径的情况下进一步对孔位关系进行检测。结果表明:圆孔轴向精度为0.093 1°、半径检测精度为0.002 775 mm,并可对孔位进行精确检测。
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出版历程
  • 收稿日期:  2013-09-15
  • 刊出日期:  2015-07-05

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