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NURBS curve interpolation algorithm based on tool radius compensation method
Zhou B(周波); Zhao JB(赵吉宾); Li L(李论); Xia RB(夏仁波)
作者部门装备制造技术研究室
关键词Tool Radius Compensation Continuous Short Block Nurbs Fitting Look Ahead Acceleration/deceleration Feedrate-planning
发表期刊International Journal of Production Research
ISSN0020-7543
2016
卷号54期号:15页码:4448-4474
收录类别SCI ; EI
EI收录号20152801029083
WOS记录号WOS:000380165200004
产权排序1
资助机构National Programme on Key Basic Research Project of China (973 Programme) [grant number 2011CB302400] ; National Natural Science Foundation of China (NSFC) [grant number 51175495].
摘要This paper focuses on developing an algorithm that can generate toolpaths in NURBS form for smooth, high speed and accurate machining. The initial toolpaths are obtained by tool radius compensation method which is based on the workpiece boundary offsetting. According to different lengths and the continuous short block (CSB) criterion, these offset linear segments can be regarded as CSBs or long straight segments. Junctions are located where the curvature value is greater than the preset curvature threshold value or where it changes abruptly, or at the two end points of any long straight segment. During machining, the NURBS fitting module first looks ahead several CSBs and converts them into parametric curves in real time. During the conversion, continuities of the position, slope or even curvature at the transition of the parametric curves and unfitted line segments can be guaranteed. Then the acceleration/deceleration feedrate-planning scheme is proposed to determine the transition feedrate at the junction between the fitted curves and unfitted long straight segments, and the corner feedrate within the fitted curve. Simulations and experiments show that the proposed algorithm can significantly improve machining accuracy and reduce cutting time to satisfy today’s high-speed and high-accurate machining requirements.
语种英语
WOS标题词Science & Technology ; Technology
WOS类目Engineering, Industrial ; Engineering, Manufacturing ; Operations Research & Management Science
关键词[WOS]PARAMETRIC INTERPOLATOR ; CHORD ERROR ; FEEDRATE ; PATH ; ACCELERATION ; SURFACES ; LENGTH ; JERK
WOS研究方向Engineering ; Operations Research & Management Science
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sia.cn/handle/173321/16832
专题装备制造技术研究室
通讯作者Zhao JB(赵吉宾)
作者单位1.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
2.University of Chinese Academy of Sciences, Beijing, China
推荐引用方式
GB/T 7714
Zhou B,Zhao JB,Li L,et al. NURBS curve interpolation algorithm based on tool radius compensation method[J]. International Journal of Production Research,2016,54(15):4448-4474.
APA Zhou B,Zhao JB,Li L,&Xia RB.(2016).NURBS curve interpolation algorithm based on tool radius compensation method.International Journal of Production Research,54(15),4448-4474.
MLA Zhou B,et al."NURBS curve interpolation algorithm based on tool radius compensation method".International Journal of Production Research 54.15(2016):4448-4474.
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