The positioning precision analysis of the ball screw drive system

Author

Huiduan Zhang ; Junling Sun

Author_Institution

Sch. of Mech. & Power Eng., Henan Polytech. Univ., Jiaozuo, China

fYear

2011

fDate

19-22 Aug. 2011

Firstpage

531

Lastpage

534

Abstract

The ball screw drive system is obtained widespread application in the modern machine. Along with the improving of feeding velocity and working precision, its positioning precision becomes more and more important. Considering the bearing stiffness and the contact deformation between the worktable and the screw, using boundary conditions and matching conditions, the vibration frequency equation of the screw is derived and the mode shape of the screw is solved. Longitudinal and torsional vibration of the screw and vibration of the worktable are studied. Dynamic model of the ball screw drive system of machines is established using Lagrange equation. The model is analyzed by the mode superposition and Runge-Kutta method to calculate the transient response of the worktable. The effect of the system parameters on the worktable´s vibration are studied to supply a base for designing the drive system.

Keywords

Runge-Kutta methods; deformation; drives; elasticity; fasteners; mechanical contact; vibrations; Lagrange equation; Runge-Kutta method; ball screw drive system; bearing stiffness; contact deformation; feeding velocity; longitudinal vibration; positioning precision analysis; torsional vibration; vibration frequency equation; Damping; Educational institutions; Equations; Fasteners; Mathematical model; Springs; Vibrations; Drive System; Positioning precision; dynamic;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronic Science, Electric Engineering and Computer (MEC), 2011 International Conference on

Conference_Location

Jilin

Print_ISBN

978-1-61284-719-1

Type

conf

DOI

10.1109/MEC.2011.6025519

Filename

6025519