Study on the hydrostatic slide film temperature field and bearing capacity of precision grinding machine

Abstract

In order to improve the machining precision of precision surface grinding machine, the static performance and thermal performance of the machine hydrostatic guide are analyzed, and the static characteristics and temperature distribution of the oil pad under an inlet oil pressure of 2.8-3.4 MPa and an oil film thickness of 38-44 μm were researched. The simulation results show that the initial temperature of the oil chamber area is 20 °C, and the temperature gradually decreases from the inlet. When the oil film thickness is 40 μm, the inlet oil pressure increases from 2.8 to 3.4 MPa; accordingly, the each pair of oil film bearing capacities increases from 7510 to 8240 N. The research results can provide the basis for the optimization design of guide.