DocumentCode :
2998653
Title :
Research on transfer control strategy in CNC high-speed and high-accuracy machining
Author :
Shi, Zhenzhen ; Guo, Ruifeng ; Li, Peinan ; Ma, Yongtao ; Ding, Wanfu
Author_Institution :
Grad. Univ. of Chinese Acad. of Sci., Beijing, China
fYear :
2009
fDate :
26-29 Nov. 2009
Firstpage :
567
Lastpage :
571
Abstract :
Feed rate has always been one of the most important indicators for CNC performance, while transfer velocity between two adjacent segments pays a key role in improving feed rate. Since the contour of a special part commonly consists of line and arc segments (non-micro segments), as well as continuous micro line segments (micro segments) so there should be different methods to deal with their transfer velocity, respectively. In this paper, a new two-pass algorithm is proposed to find the optimal transfer velocity for micro segments. The theory of machining links and several constraints are developed to drive the algorithm. Then, a vector transfer algorithm is generated to realize transfer for non-micro segments, the generated algorithm is based on s-curve and added to a new optimization algorithm to constrain the velocity, acceleration and jerk at the turning corner. Finally, several examples are presented to illustrate the application of above two algorithms.
Keywords :
computerised numerical control; machining; optimal control; optimisation; CNC high-accuracy machining; CNC high-speed machining; feed rate; machining link theory; optimal transfer velocity; optimization algorithm; transfer control strategy; two-pass algorithm; vector transfer algorithm; Acceleration; Computer numerical control; Constraint optimization; Constraint theory; Feeds; Iterative algorithms; Machining; Productivity; Turning; Velocity control; micro-segments; non-micro segments; s-curve; vector transfer;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer-Aided Industrial Design & Conceptual Design, 2009. CAID & CD 2009. IEEE 10th International Conference on
Conference_Location :
Wenzhou
Print_ISBN :
978-1-4244-5266-8
Electronic_ISBN :
978-1-4244-5268-2
Type :
conf
DOI :
10.1109/CAIDCD.2009.5375159
Filename :
5375159
Link To Document :
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