Determining a Feasible Working Condition for Hydrostatic Spindle Bearings of the External Circular Grinding Machine 3K12
Main Article Content
Abstract
In a hydrostatic spindle of machine tools, the bearing structure parameters, lubrication characteristics and working conditions are factors affecting the spindle stiffness and the machining quality. Besides some known geometrical parameters and oil viscosity, other factors such as lubricant pressure and loading capacity need to be determined to find a feasible working condition for a machine tool. This study presents the experimental results of the effect of pump pressures and loads on the stiffness of the spindle integrated a new designed and fabricated hydrostatic bearing. The experiment results show that, with a known oil viscosity of 0.002 PaS, a pump pressure of 5 MPa and a load in a range 500 – 1000 N are the most feasible working condition of the medium–sized external circular grinding machine 3K12.
Keywords
Medium-sized circular grinding machine, pump pressure, loading, total stiffness, hydrostatic spindle bearing
Article Details
References
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[13] СТАHОК УНИВЕРСАЛЬНЫЙ КРУГЛОШЛИФОВАЛЬНЫЙ 3К12.
[2] G.-T.B. Bo-Sung Kim, Gwi-Nam Kim, Hong-Man Moon, Jung-Pil Noh, Sun-Chul Hu, A Study on the Thermal Characteristics of the Grinding Machine Applied Hydrostatic Bearing, T Can. Soc. MECH ENG 39
[3] (2015) 717.
[3] S.-J.W. Hua-Chih Huang, Chih-Ming Chen, Taipei, Taiwan, The 14th IFToMM World Congress, 2015.
[4] V. Srinivasan, Analysis of static and dynamic load on hydrostatic bearing with variable viscosity and pressure, Indian J Sci Technol. 6 (6S) (2013).
[5] K. Wasson, Proceedings of the ASPE precision bearings and spindles, June 2007.
[6] M.B. Nirav Doshi, Optimization of Film Thickness for Hydrostatic Circular Pad Bearing Used in V-25 vertical Turning Machine, Int. J. Mech. Eng. Robot. 1
[1] (2013).
[7] R. Przybyl, Some Aspects of Application of the Hydrostatic Bearings in Machine Tools, Mech. Mech. Eng. Vol. 12
[3] (2008) 243.
[8] D. Chen, J. Fan and F. Zhang, Dynamic and static characteristics of a hydrostatic spindle for machine tools, Journal of Manufacturing Systems 31
[1] (2012) 26.
[9] D. Chen, M. Bonis, F. Zhang and S. Dong, Thermal error of a hydrostatic spindle, Precision Engineering 35
[3] (2011) 512.
[10] L.L. Qiang He, Ren Fengzhang, Volinsky Alex: Numerical Simulation and Experimental Study of the Hydrostatic Spindle with Orifice Restrictors 2015) pp. 1293.
[11] G.B.a.D.C. S. Uberti, Proceedings of design 2010, the 11th International Design Conference 2010, p. 1729.
[12] W. Chen, Y. Sun, Y. Liang, Q. Bai, P. Zhang and H. Liu, Hydrostatic spindle dynamic design system and its verification, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 228
[1] (2014) 149.
[13] СТАHОК УНИВЕРСАЛЬНЫЙ КРУГЛОШЛИФОВАЛЬНЫЙ 3К12.