Stiffness Study of Swing Chainon Heavy Duty Deflection Angle Milling Head

Heavy duty deflection angle milling head is the core functional unit of heavy-duty gantry CNC machine tools. Stiffness of swing chain system is one of the important factors that determines accuracy of heavy duty deflection angle milling head. In order to improve dynamic performance and mechanical pr...

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Bibliographic Details
Published in:Key engineering materials 2010-01, Vol.439-440, p.1287-1293
Main Authors: Liu, Zhi Feng, Cai, Li Gang, Dong, Xiang Min, Guo, Tie Neng
Format: Article
Language:English
Subjects:
Bearing
Chain dynamics
Chains
Computer numerical control
Deflection
Deformation
Design engineering
Digital
Driving
Dynamic tests
Dynamical systems
Dynamics
Gantries
Gears
Machine tools
Mathematical analysis
Milling (machining)
Optimization
Performance enhancement
Segments
Stiffness
Support systems
Swing
Theorems
Workpieces
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Summary:Heavy duty deflection angle milling head is the core functional unit of heavy-duty gantry CNC machine tools. Stiffness of swing chain system is one of the important factors that determines accuracy of heavy duty deflection angle milling head. In order to improve dynamic performance and mechanical precision, the gear pair and support system of the swing chain are studied in the paper. Based on the deformation compatibility condition and the superposition theorem, the torsional deformation and stiffness of each part are analyzed, and considered the deformation of workpieces and supporting system and the interaction of them. The vulnerable segment is found out in the paper, which is valuable to amend and improve the design of milling head. At last, the curves of the relation between the swing chain stiffness and the gear parameters and bearing preload are charted, which provide the theory and technical support for digital design, optimization of the milling head and the basis for the similar driving system stiffness calculation.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.439-440.1287