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Determination of angular fields outside low and high collisions to mill free-form surfaces on 5-axis CNC machines

机译:确定在5轴CNC机床上对铣削自由曲面的低和高碰撞外部的角场

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摘要

The present article addresses positioning of a flat end milling cutter to ensure avoidance of local and global interference. The activity concerned is end milling of parts modelled by free-form surfaces on 5-axis numerical control machines. The tool positioning defined here uses two corrective angles and thus takes full advantage of all the possibilities for 5-axis machine movement. Local interference is cancelled out from a set of points defining the domain of the surface in collision with the cutter and an angular solution domain is proposed to orient the cutter. Global interference is resolved using a set of points; here too, a collision-free angular domain is defined. To obtain a collision-free tool, the two previously mentioned angular domains are superimposed. An additional corrective method is defined if no solution is found using the previous method. Finally, positioning free from local and global interference is obtained. The method was coded and positioning simulations were used to validate the approach's effectiveness.
机译:本文讨论了平底铣刀的定位,以确保避免局部和全局干扰。有关活动是在五轴数控机床上通过自由曲面对零件进行立铣。此处定义的刀具位置使用两个校正角,因此可以充分利用5轴机床运动的所有可能性。从定义与刀具碰撞的表面区域的一组点中消除了局部干扰,并提出了一个角度解区域来确定刀具的方向。全局干扰通过一组点来解决;在此也定义了无碰撞角域。为了获得无碰撞的工具,将前面提到的两个角域叠加在一起。如果使用以前的方法找不到解决方案,则定义一种其他的纠正方法。最后,获得不受本地和全局干扰的定位。对该方法进行了编码,并使用定位仿真来验证该方法的有效性。

著录项

  • 来源
    《International Journal of Production Research》 |2012年第4期|p.1045-1061|共17页
  • 作者单位

    Institut Clement Ader laboratory, Universite Paul Sabatier, 118 route de Narbonne, bat.3Rl, 31062 Toulouse cedex 4, France;

    Institut Clement Ader laboratory, Universite Paul Sabatier, 118 route de Narbonne, bat.3Rl, 31062 Toulouse cedex 4, France;

    Institut Clement Ader laboratory, Universite Paul Sabatier, 118 route de Narbonne, bat.3Rl, 31062 Toulouse cedex 4, France;

    Institut Clement Ader laboratory, Universite Paul Sabatier, 118 route de Narbonne, bat.3Rl, 31062 Toulouse cedex 4, France;

    Institut Clement Ader laboratory, Universite Paul Sabatier, 118 route de Narbonne, bat.3Rl, 31062 Toulouse cedex 4, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    5-axis machining; local collision; global collision; tool positioning;

    机译:5轴加工;局部碰撞全球碰撞;工具定位;

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