留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

五轴加工奇异问题机理分析及其避免策略

蔡安江 赵丹 叶向东 王杰

蔡安江, 赵丹, 叶向东, 王杰. 五轴加工奇异问题机理分析及其避免策略[J]. 机械科学与技术, 2017, 36(8): 1237-1243. doi: 10.13433/j.cnki.1003-8728.2017.0815
引用本文: 蔡安江, 赵丹, 叶向东, 王杰. 五轴加工奇异问题机理分析及其避免策略[J]. 机械科学与技术, 2017, 36(8): 1237-1243. doi: 10.13433/j.cnki.1003-8728.2017.0815
Cai Anjiang, Zhao Dan, Ye Xiangdong, Wang Jie. Mechanism Analysis and Avoiding Strategy of Singular Problem in Five-axis Machining[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(8): 1237-1243. doi: 10.13433/j.cnki.1003-8728.2017.0815
Citation: Cai Anjiang, Zhao Dan, Ye Xiangdong, Wang Jie. Mechanism Analysis and Avoiding Strategy of Singular Problem in Five-axis Machining[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(8): 1237-1243. doi: 10.13433/j.cnki.1003-8728.2017.0815

五轴加工奇异问题机理分析及其避免策略

doi: 10.13433/j.cnki.1003-8728.2017.0815
基金项目: 

国家自然科学基金项目(51475352)资助

详细信息
    作者简介:

    蔡安江(1965-),教授,博士生导师,研究方向为多轴数控加工技术,cai_aj@163.com

Mechanism Analysis and Avoiding Strategy of Singular Problem in Five-axis Machining

  • 摘要: 五轴加工后置处理在奇异区域内反解旋转角时,产生的旋转轴运动突变,不仅会引起较大的加工非线性误差,而且会损害工件与机床部件。针对以上问题,以五轴AB双转台卧式数控机床为研究对象,根据机床结构与运动链,运用齐次坐标变换原理,推导出其后置处理算法,将刀轴矢量的可行值域简化为球体,并通过将AB轴的运动类似为球体上的AB阶跃,分析了奇异问题的产生机理,提出了加工奇异区域的检测方法。对刀轴矢量投影局部放大后,通过刀位点和刀轴矢量插值分解B阶跃后重新生成刀具路径的方法,得到了奇异问题的避免策略。仿真加工验证表明,该方法可以在原有刀位轨迹不变的基础上较好地消除奇异问题,提高加工质量,同时也可推广到同类结构相似的机床上用于消除奇异问题。
  • [1] Uddin M S, Ibaraki S, Matsubara A, et al. Prediction and compensation of machining geometric errors of five-axis machining centers with kinematic errors[J]. Precision Engineering, 2009,33(2):194-201
    [2] 罗明,吴宝海,李山,等.自由曲面五轴加工刀轴矢量的运动学优化方法[J].机械工程学报,2009,45(9):158-163 Luo M, Wu B H, Li S, et al. Five-axis tool orientation optimization based on kinematical method[J]. Journal of Mechanical Engineering, 2009,45(9):158-163(in Chinese)
    [3] Chen L P, Chen Y, Hu D J. Interference-free tool posture generation for 5-axis NC milling free-form surfaces with cylindrical mill[J]. Chinese Journal of Mechanical Engineering, 2004,17(3):381-384
    [4] Wang N, Tang K. Automatic generation of gouge-free and angular-velocity-compliant five-axis toolpath[J]. Computer-Aided Design, 2007,39(10):841-852
    [5] So B S, Park D H, Cho Y, et al. An analytic model for tool trajectory error in 5-axis machining[J]. Journal Achievements in Materials and Manufacturing Engineering, 2008,31(2):570-575
    [6] Affouard A, Duc E, Lartigue C, et al. Avoiding 5-axis singularities using tool path deformation[J]. International Journal of Machine Tools and Manufacture, 2004,44(4):415-425
    [7] Munlin M, Makhanov S S, Bohez E L J. Optimization of rotations of a five-axis milling machine near stationary points[J]. Computer-Aided Design, 2004,36(12):1117-1128
    [8] Makhanov S S, Munlin M. Optimal sequencing of rotation angles for five-axis machining[J]. The International Journal of Advanced Manufacturing Technology, 2007,35(1-2):41-54
    [9] Ivanenko S A, Makhanov S S, Munlin M A. New numerical algorithms to optimize cutting operations of a five-axis milling machine[J]. Applied Numerical Mathematics, 2004,49(3-4):395-413
    [10] Sorby K. Inverse kinematics of five-axis machines near singular configurations[J]. International Journal of Machine Tools and&anufacture, 2007,47(2):299-306
    [11] 王峰,林浒,郑飂默,等.五轴加工奇异区域的检测和处理[J].计算机集成制造系统,2011,17(7):1435-1440 Wang F, Lin H, Zheng L M, et al. Detection and treatment of singular area in five-axis machining[J]. Computer Integrated Manufacturing Systems, 2011,17(7):1435-1440(in Chinese)
    [12] 王峰,林浒,刘峰,等.五轴加工奇异区域内的刀具路径优化[J].机械工程学报,2011,47(19):174-180 Wang F, Lin H, Liu F, et al. Tool path optimization of five-axis machining in singular area[J]. Journal of Mechanical Engineering, 2011,47(19):174-180(in Chinese)
    [13] 王峰,林浒,郑飂默,等.基于误差控制的五轴NC系统平滑插补策略[J].小型微型计算机系统,2013,34(4):810-814 Wang F, Lin H, Zheng L M, et al. Strategy for smooth Interpolation Based on error control in five-axis NC system[J]. Journal of Chinese Computer Systems, 2013,34(4):810-814(in Chinese)
    [14] 张宏韬,杨建国,姜辉,等.双转台五轴数控机床误差实时补偿时[J].机械工程学报,2010,46(21):143-148 Zhang H T, Yang J G, Jiang H, et al. Real-time error compensation for the two turntable five-axis NC machine tools[J]. Journal of Mechanical Engineering, 2010,46(21):143-148(in Chinese)
    [15] Lin Z W, Fu J Z, Sheng H Y, et al. Non-singular tool path planning by translating tool orientations in C-space[J]. The International Journal of Advanced Manufacturing Technology, 2014,71(9-12):1835-1848
  • 加载中
计量
  • 文章访问数:  207
  • HTML全文浏览量:  18
  • PDF下载量:  14
  • 被引次数: 0
出版历程
  • 收稿日期:  2016-06-12
  • 刊出日期:  2017-08-05

目录

    /

    返回文章
    返回