任意扭曲叶轮五轴数控侧铣的算法研究  

Algorithm for 5-axis Numerical Control Flank Milling of Arbitrary Surfaces

作　　者：樊宏周[1] 席光[1] 王尚锦[1] 

机构地区：[1]西安交通大学,西安710049

出　　处：《中国机械工程》2010年第2期127-130,共4页China Mechanical Engineering

基　　金：国家863高技术研究发展计划资助项目(2006AA05Z250)

摘　　要：为提高任意扭曲叶轮五轴整体铣制的加工质量和效率,在粗铣阶段,拟合出一个"加厚"的单一直纹面叶片来包络任意扭曲叶片,实现用侧铣来完全代替点铣加工;在半精加工阶段,对侧铣粗加工作出改进,选取符合条件的原设计任意曲面的型值线作为分界线,分段进行直纹面的拟合,实现分段侧铣,同时兼顾高效性和叶片成形面精确度要求。并以某型号叶轮为例,通过整体建模、数控编程以及实际加工验证了算法在实践中的可行性。For the milling of arbitrary surface impellers, the segmentation method with flanking milling was proposed to improve the quality and efficiency. For rough milling, the arbitrary surface was replaced by just one fitted ruled surface,the flank milling was a good method to replace the point milling. For semi--finish milling, the primal surface was replaced by several needed ruled surfaces,using step flank milling to gain the satisfaction in model＇s nicety and machining efficiency. Model building,NC programming and machining of a real pump impeller were conducted to test the proposed method.

关 键 词：叶轮机械 侧铣 任意曲面 直纹面 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]