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五轴后置处理转角选解优化及奇异区域处理方法的研究

  

  • 出版日期:2016-10-31 发布日期:2016-10-20
  • 基金资助:
    科技重大专项支持项目–高档数控机床与基础制造装备(2013ZX04012021)

Research on Optimization of Rotation Angle and Singular Area Handling in Five-Axis Post-Processing

  • Online:2016-10-31 Published:2016-10-20

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229

被引次数

1

摘要： 五轴后置处理是将CAM 软件系统产生的刀位文件转换成数控机床加工程序的关键
环节。基于五轴后置处理过程中转角选解、优化以及奇异区域加工数据处理的问题，提出了一种
集合转角选解、优化及奇异区域处理的方法，解决了因后置处理中选解不当引起的碰撞、旋转轴
在相邻刀位之间摆幅过大以及在奇异区域旋转轴产生急速转动、非线性误差过大等问题。该方法
应用C++语言开发了相应的后置处理系统，通过读取CATIA 刀位文件，生成可执行数控加工程
序，经Vericut 仿真验证该算法可行。

关键词: 五轴数控加工, 后置处理, 选解优化, 奇异区域处理

Abstract: Post-processing is the key of the transformation from CL-Data of CAM system to NC
program. Since the improper selection of rotation angle will leads to collision between cutter tool and
work piece and dramatic change of rotary axis in adjacent cutter-location as well as rotary angle
changes rapidly and non-linear error exceeds allowable limits in singular area. This paper proposed a
method which integrates optimization of rotation angle and singular handling in five-axis
post-processing. A post-processor was developed with C++ program language based on the method,
which inputs the CL-Data of CATIA NC manufacturing module and outputs the NC program. The
validity of the method is verified through Vericut simulation.

Key words: five-axis NC manufacturing, post-processing, optimization of rotation angle, singular area
handling