面向特征库的整体叶轮刀轨规划方法

中国机械工程

面向特征库的整体叶轮刀轨规划方法

许少坤;阴艳超;姬常杰;牛红伟

昆明理工大学机电工程学院，昆明，650500

出版日期:2017-04-25 发布日期:2017-04-25
基金资助:
国家自然科学基金资助项目（51365022）;
云南省教育厅科学研究基金资助项目(2016YJS022)

Tool Path Planning Method Oriented Feature Library of Integral Impeller

XU Shaokun;YIN Yanchao;JI Changjie;NIU Hongwei

Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology,Kunming,650500

Online:2017-04-25 Published:2017-04-25

摘要/Abstract

摘要： 针对整体叶轮曲面曲率变化大、流道为特殊型腔的特点，提出了一种面向特征的刀轨规划方法。分析了整体叶轮加工型面的特征及加工难点，建立由叶片、流道、进出水边、叶根等不同型面刀轨构成的特征库。设计叶轮加工型面与特征刀轨库间的匹配规则，开发了整体叶轮加工型面特征刀轨规划系统。算例仿真表明，该方法可有效减少叶轮加工曲面的刀路数量，提高整体叶轮自由曲面叶片的加工质量和效率。

关键词: 整体叶轮, 刀轨规划, 特征刀轨, 匹配规则

Abstract: In complex machining surfaces of integral impeller, changes of curvature were big, and flow channel cavities were special, a feature oriented tool path planning method was proposed herein. Characteristics of integral impeller machining surfaces and processing difficulties were analyzed. A feature library composed of different tool paths for surfaces of blade, flow channel, inlet and outlet, blade root was established. Matching rules between the impeller surfaces and the feature tool path library were designed. Furthermore, the tool path planning system of integral impeller processing surface features was developed. Case study shows that the presented method may reduce the number of tool paths for machining impeller surfaces effectively, and improve blade machining quality and efficiency of the free surfaces of integral impeller.

Key words: integral impeller, tool path planning, characteristic tool path, matching rule

中图分类号:

TP391
TH166

许少坤, 阴艳超, 姬常杰, 牛红伟. 面向特征库的整体叶轮刀轨规划方法[J]. 中国机械工程.

XU Shaokun, YIN Yanchao, JI Changjie, NIU Hongwei. Tool Path Planning Method Oriented Feature Library of Integral Impeller[J]. China Mechanical Engineering.

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