THE INFLUENCE OF THE HYDRAULIC DRIVING SYSTEM ON THE DYNAMIC BEHAVIOUR OF THE CLAMPING DEVICES

摘要

The study of the dynamic behaviour of the clamping devices has a great importance because the clamping device, as a sub-system of the technological system, is most times the weak element. The paper presents the factors which influence the dynamic behaviour of the clamping devices, the influence of the hydraulic driving system being emphasized. The frequencies spectrum which characterizes the dynamic behaviour of two types of multiple hydraulic-driven clamping devices is being presented. It is shown the fact that the hydraulic driving system is a source of vibrations which can dynamically influence the clamping device in the same degree as some other elements of the machine-tool do.