Prediction of part machining cycle times via virtual CNC

被引：34
|
作者：
Altintas, Y. [1 ]
Tulsyan, S. [1 ]
机构：
[1] Univ British Columbia, Dept Mech Engn, Mfg Automat Lab, Vancouver, BC V6T 1W5, Canada
来源：
CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2015年 / 64卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Computer numerical control (CNC); Tool path; Cycle time; OPERATIONS; SYSTEM;
D O I：
10.1016/j.cirp.2015.04.100
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents the virtual prediction of part machining cycle times within 95% accuracy by considering the trajectory generation and corner smoothing models of commercial CNCs. The key functions of the CNC which control the machine motions are the real time interpolation, trajectory generation and feed drive control modules. It is shown that only the trajectory generation and the interpolation of tool path geometry are crucial in predicting the part machining cycle times, and the servo control loops contribute negligible time delay. The proposed model is experimentally validated in machining 3 and 5-axis parts on commercial CNC machine tools. (c) 2015 CIRP.
引用
收藏
页码：361 / 364
页数：4
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