An optimal feedrate model and solution algorithm for a high-speed machine of small line blocks with look-ahead

被引：6

作者：

Hu, J ^{[1
]}

Xiao, LJ ^{[1
]}

Wang, YH ^{[1
]}

Wu, ZY ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200030, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2006年 / 28卷 / 09期

关键词：

acceleration and deceleration; feedrate; look-ahead; high-speed machine; small line blocks;

D O I：

10.1007/s00170-004-1884-2

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In complex high-speed machining of consecutive small line blocks, the tool path segments can be so short that a machining center moving at a high feedrate cannot accelerate or decelerate fast enough to make direction changes accurately. Aiming at adjusting the feedrate automatically to achieve maximum productivity, this paper present a novel mathematical model considering the key and representative factors, and then based on it, propose an algorithm to seek the approximate optimal feedrate by evaluating the toolpath ahead. Simulation results demonstrate the machine using the proposed model and algorithm can go fast where possible and to slow down just enough where needed and the productivity can be improved dramatically.

引用

页码：930 / 935

页数：6