摘要
针对国内外对于非正交数控机床的斜摆轴B轴误差辨识研究较少问题,基于多体系统理论建立非正交五轴数控机床运动误差模型,此模型包含了旋转轴B轴的共计12项静态误差和动态误差,在对此运动误差模型进行数学表达与分析后,结合Renishaw公司的QC10球杆仪测量方式设计了8种不同测量模式。最后结合测量结果可实现斜摆轴B轴的12项误差辨识,快速高效。经试验验证,这种辨识方法测量结果精确,可用于非正交五轴数控机床旋转轴误差辨识。
Considering the fact that there is not enough study on the identification of the geometric deviations generated by inclined pendulum shaft axis B of nonorthogonal five axis nc machine tool at home and abroad, establish nonorthogonal five axis nc machine tool motion deviations model based on the multibody system theory which takes rotation axis B static deviations and dynamic deviations totaling 12 into consideration. After analyzing the mathematical expression of motion deviations model and combining Renishaw company QC10 instrument,eight different measurement model is designed. At last,combined with the measuredment results,the 12 geometric deviations of pendulum shaft axis B can be identified fast and efficiently. This method has been verified by experiments, which can be applied into the identification for nonorthogonal five axis nc machine tool.
出处
《组合机床与自动化加工技术》
北大核心
2015年第1期71-74,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金:数控机床加工缺陷成因的逆向追踪理论与实验研究(51275014)
国家科技重大专项:中高档国产数控磨床可靠性规模化提升工程(2013ZX04013047)
关键词
非正交五轴数控机床
斜摆轴
多体系统
旋转轴几何误差
辨识方法
non-orthogonal five-axis NC
inclined axis
multi-body system
geometric deviations
identifica-tion algorithm
