中南大学学报（自然科学版）2017，Vol.48Issue(10)：2672-2677,6.DOI:10.11817/j.issn.1672-7207.2017.10.016
大型数控成形磨齿机热误差建模及补偿
Modeling and compensation of thermal error for large-scale CNC gear profile grinding machine tools
摘要
Abstract
Considering that the thermal error of large-scale computerized numerical control (CNC) gear profile grinding machine tools is an important factor for gear machining accuracy, a thermal error experiment platform was established to investigate the relationship between radial thermal error and temperature of the grinding wheel and the workpiece shaft. Then the thermal error compensation models of them were set up by adopting the methods of fuzzy clustering and least-square. After that, the results of thermal error compensation models and the experimental data were compared. The accuracy and reliability of the thermal error compensation models were verified, and the relationship between the thermal error and the temperature of the gear grinding machine tools was also revealed. The results show that the relative errors between models calculation and experimental data are less than 2.000%, and the machining accuracy of tooth surface can be effectively improved more than three levels according to the ISO standard. The analysis indicates the thermal error models have high compensation precision and good reliability.关键词
数控成形磨齿机/热误差/模糊聚类/最小二乘法/误差补偿模型Key words
CNC gear profile grinding machine tools/thermal error/fuzzy clustering/least-square method/error compensation model分类
机械制造引用本文复制引用
周宝仓,王时龙,方成刚,杨勇..大型数控成形磨齿机热误差建模及补偿[J].中南大学学报（自然科学版）,2017,48(10):2672-2677,6.基金项目
国家自然科学基金面上项目(51375508) （51375508）
"十二五"国家科技支撑计划项目(2014BAF08B02) （2014BAF08B02）
重庆市杰出青年科学基金项目(cstc2014jcyjjq70001)(Project(51375508) supported by the General Program of National Natural Science Foundation of China （cstc2014jcyjjq70001）
Project(2014BAF08B02) supported by the National Science and Technology Pillar Program during the 12th "Five-year" Plan Period of China （2014BAF08B02）
Project (cstc2014jcyjjq70001) supported by the Chongqing Science Funds for Distinguished Young Scholar) （cstc2014jcyjjq70001）
