Abstract
Hydrostatic lubricated vertical guideway is commonly used as a form of rail head bearing lubrication in CNC vertical lathe lubricated bearing. In order to improve the cutting performance of CNC equipment during machining, we have studied the hydrostatic vertical guideway with inner slide during the process of ram feed moving in this paper. The single rectangular cavity flow equation and velocity equation are derived. Numerical simulation of taking limit working conditions that the cutting force is taken byis studied by the Finite Volume Method (FVM). The flow field and velocity distribution of X direction and Y direction of hydrostatic vertical guideway are obtained by using quantitative method and supplying oil with a single chamber, with the inlet flow of 0.52L/min, with the film thickness of 0.023mm and the depth of oil cavity of . The mathematical model by theoretical derivation and the flow state regularity in limit working conditions are verified and revealed. The results of study above in this paper provide valuable theoretical basis for hydrostatic guideway design in practical projects.
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