Abstract
Hydrostatic vertical guideway is the key component of modern CNC equipments which is a common lubrication form of turret. In order to improve the cutting stiffness during processing, the hydrostatic vertical guideway in sliding seat during westbank ram processing. Take count different cutting force to analysis the thickness changing of hydrostatic oil film, and then the relation between cutting force and the thickness of oil film is obtained. Based on FVM, relation model between them is established and the limited condition including cutting force is T=100KN, flow flux of each inlet is 0.52L/min, pump of constant delivery type is applied, film thickness is 0.023mm and oil cavity depth is 2mm is numerical simulated. The Hydrostatic pressure field and film thickness under different condition of hydrostatic vertical guideway is obtained. The relation model between film thickness and custom forces is validated. Whats more, the regularity of cutting force influence that impacted on film thickness is revealed. The study is of vital theoretical significance for the improvement of machining accuracy of numerical control machine and the entire CNC equipment and provides valuable theoretical basis for the design of hydrostatic guide rail in engineering practice.
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