Research on machine tools rolling slideways assembly with damping oil-films

This paper presents an investigation on inserting damping oil-films into machine tools rolling slideways. It indicates that the vibration-proof ability of the system can be improved significantly by this means as well as its proper moving sensitivity and low-speed moving stability are preserved. The experimental formula of the damping coefficient of rectangular oil-films with a parallel gap is presented through tests. The rolling slideways system with damping oil-films is modelled in accordance with the special characteristic of the structure and the corresponding identification method of the damping coefficient is presented. Furthermore, computer simulative experiments are carried out. On the basis of the analysis of the results the objective for optimization of oil-film damping parameters is given.