An experimental study on the determination of optimal lubrication conditions in a high-speed spindle

• Autorzy: Park S.-J. , Hwang Y.-K , Lee C.-M
• Języki publikacji: EN

Abstrakty

EN

The heat generation inside spindles becomes a major factor that limits the allowable maximum rotational speed in machine tools and decreases the cutting quality. It is necessary to accurately estimate the temperature distribution in spindles caused by the heat generation in bearings and its heat transfer characteristics in order to perform the high-speed and high-precision in high-speed spindles. In addition, an accurate correction process is required according to the results of the estimation through investigating the thermal deformation error. A commercial program, MINITAB, was used to establish an experiment plan that analyzes the heat generation characteristics of the spindle system according to the operation and lubrication conditions of the spindle. Also, the change in the outer ring temperature of bearings was measured according to the experimental plan. After establishing a response surface model using the results of the experiment, the estimation equation of the quadratic polynomial model was proposed for determining the optimal lubrication condition. A verification experiment was applied to verify the accuracy of the experimental equation determined by the estimated regression model and the experimental value used in the estimation of the regression model.

Słowa kluczowe

EN

optimal lubrication condition; oil-air lubrication; high speed spindle

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2009
• Tom: Vol. 9, No. 2
• Strony: 106--113
• Opis fizyczny: Bibliogr. 7 poz., tab., rys.

Twórcy

autor

Park S.-J.

• Department of mechanical design and manufacturing, Changwon National University, Korea

autor

Hwang Y.-K

• Department of mechanical design and manufacturing, Changwon National University, Korea

autor

Lee C.-M

• Department of mechanical design and manufacturing, Changwon National University, Korea

Bibliografia

• 1. WU Cheng Hsien., KUNG Yu Tai., 2005, A parametric study on oil/air lubrication of a high-speed spindle. Precision Engineering, 29/2/162-167.
• 2. CHOI D. B., KWON H. D., KIM S. T., KIM C. Y., 2008, An analysis on the thermal characteristics of a high speed motor spindle with oil-air lubrication according to the cooling oil flow and viscosity. Autumn Conference of KSMTE, 326-333.
• 3. KIM Seok. II., CHOI Dae-Bong., PARK Kyung. Ho., 1993, Oil-air lubrication characteristics of a high speed spindle system for machine tools, KSME, 17/2/351-358.
• 4. KWON H. D., KIM S. T., CHOI D. B., KIM C. Y., 2008, An analysis on the thermal characteristics according to the oil-air lubricated bearing and the cooling jacket of high speed spindle. Conference of KSPE, 463-464.
• 5. AHN Sung Hwan, LEE Choon man., 2009, A foundation study on the selection of bearing lubrication conditions in high-speed spindle, KSMPE, 8/1/3-9.
• 6. JIAN Jin., KO Tae Jo., KIM Hee SooL, 2007,An analysis of the thermal deformation of the main spindle for small and precision lathe, KSMPE, 6/1/43-49.
• 7. LEE S. B., 2005, MINITAB user handbook, ERETEC, 617-656.