Responsive fixture design using dynamic product inspection and monitoring technologies for the precision machining of large-scale aerospace parts

被引:70
作者
Li, Yingguang [1 ]
Liu, Changqing [1 ]
Hao, Xiaozhong [1 ]
Gao, James X. [2 ]
Maropoulos, Paul G. [3 ]
机构
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mech & Elect Engn, Nanjing 210016, Jiangsu, Peoples R China
[2] Univ Greenwich, Fac Sci & Engn, Chatham ME4 4TB, Kent, England
[3] Univ Bath, Dept Mech Engn, Bath BA2 7AY, Avon, England
基金
中国国家自然科学基金;
关键词
Computer aided design (CAD); In-process measurement; Precision machining; RESIDUAL-STRESS;
D O I
10.1016/j.cirp.2015.04.025
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
When machining a large-scale aerospace part, the part is normally located and clamped firmly until a set of features are machined. When the part is released, its size and shape may deform beyond the tolerance limits due to stress release. This paper presents the design of a new fixing method and flexible fixtures that would automatically respond to workpiece deformation during machining. Deformation is inspected and monitored on-line, and part location and orientation can be adjusted timely to ensure follow-up operations are carried out under low stress and with respect to the related datum defined in the design models. (C) 2015 CIRP.
引用
收藏
页码:173 / 176
页数:4
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