Abstract
Linear guide way is quite popular in machine tool design for its main advantage of low friction. For high precision machine tool, hydrostatic linear guide way is frequently adopted for its even lower friction and hence a higher precision control capability. Besides, the hydrostatic linear guide way provides the edge of low wear and higher damping/ dynamic stiffness. However, the design of hydrostatic linear guide way is relatively complex. The design of journal type hydrostatic guide way is relatively simple, therefore it is of interest to study the design of journal type hydrostatic guide way. The purpose of this research is to reveal the procedures needed for the design of a journal type hydrostatic guide way to fulfill the need from industrial. The system parameters studied includes length and diameter of the shaft, film thickness, size of recess in the journal type guide way, supply pressure of bearing and et al. The performance of system studied includes deformation and tilting of the shaft, loading capacity, static stiffness and flow rate of the hydrostatic guide way are evaluated through simulations. Based on the results, a test system is established to verify the simulation results. Series of experiments were conducted to verify the simulation results. Finally conclusions were made based on these results.