Study on the Relation between Bore Diameter of the Hollow Screw and Static Stiffness of the Dual-Drive System

Abstract:

The size of bore diameter of hollow screw, to some extent, will affect the dual-drive feed system's static stiffness, and then affect the machining accuracy of the workpiece. This paper takes the dual-drive feed system as the research object and builds its finite element model. Use the model to make static analysis in Workbench. After that, we can get the relation between bore diameter of hollow screw and static deformation of the dual-drive system. The results demonstrate that: with the bore diameter of hollow screw increases, the maximum static deformation volume of the dual-drive system gradually becomes larger. This article suggests that the appropriate design size of the diameter should be 4~10 mm. Because the corresponding static deformation of the dual-drive system changes little in magnitude within this range. These advised parameters can provide certain principles for the improvements of a hollow screw shape and size and its parametric design.

• Periodical: Applied Mechanics and Materials (Volumes 401-403)
• Pages: 295-299
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.401-403.295
• Online since: September 2013
• Authors: Lan Jin, Bing Yan, Xiao Hui Zheng, Yong Wei Wang, Li Ming Xie
• Keywords: Bore Diameter, Dual-Drive System, Hollow Screw, Static Deformation

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