Decreasing of thermal errors in a lathe by forced cooling of ball screws and a headstock

• Autorzy: Winiarski Z. , Kowal Z. , Błażejewski A.
• Języki publikacji: EN

Abstrakty

EN

The goal of this paper is to present the effective methods of decreasing thermal deformations of a turning centre's structure in order to reduce the thermal error. The design of a machine tool as well as the scope of analyses are described, and calculation methods are specified. The paper also presents the results of computer simulations, concerning studies on the influence of type and parameters of a headstock-cooling liquid on the reduction of spindle displacements. Moreover, the results of feed mechanism's thermal studies are shown, describing the influence of heat generated during the operation of ball screws and their inner liquid cooling, on tool's thermal displacements.

Słowa kluczowe

EN

lathe; feed mechanism; cooling; thermal error; calculation

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2008
• Tom: Vol. 8, No. 4
• Strony: 122--130
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Winiarski Z.

• Wroclaw University of Technology, Institute of Production Engineering and Automation, ul. Lukasiewicza 5, 50-371 Wroclaw, Poland

autor

Kowal Z.

• Wroclaw University of Technology, Institute of Production Engineering and Automation, ul. Lukasiewicza 5, 50-371 Wroclaw, Poland

autor

Błażejewski A.

• Wroclaw University of Technology, Institute of Production Engineering and Automation, ul. Lukasiewicza 5, 50-371 Wroclaw, Poland

Bibliografia

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• [3] JĘDRZEJEWSKI J., MODRZYCKI W., KOWAL Z., KWAŚNY W.,. WINIARSKI Z., Precise Modelling of HSC Machine Tool Thermal Behaviour, Journal of Achievements in Materials and Manufacturing Engineering, Volume 24, ISSUE 1, September 2007, 245-251.
• [4] DAE BONG CHOI, SOO TAE KIM, DONG SU JEONG, JAE JONG LEE, YONG KEE KIM, Thermal displacement reduction for the high speed spindle by the internal shaft cooling, Journal of Machine Engineering, Vol.6, No 2. 2006.
• [5] WINIARSKI Z., Limitation of Thermal Disturbances in Machine Tool Behaviour. Proceedings of Ecole Centrale Nantes, II International Seminar on Improving Machine Tool Performance, July 3-5, 2000, La Baule, France.
• [6] BERND BOSSMANNS, Jay F. Tu, A Power Flow Model for High Speed Motorized Spindles - Heat Generation Characterization, Journal of Manufacturing Science and Engineering, Vol. 123, August 2001, pp. 494-505.
• [7] WINIARSKI Z., KOWAL Z., Investigation of the effects of heat generation in hsm electroheadstocks. Journal of Machine Engineering , Vol.6, No 2. 2006.
• [8] WINIARSKI Z., KOWAL Z., Effect Of Cooling On Thermal Properties Of High-Speed Electroheadstocks MACHINE EGINEERING, Vol. 5 No. 1-2, Wroclaw 2005.
• [9] BUCHMAN K., JUNGNICKEL G., Przekazywanie ciepła w urządzeniach wytwórczych. Prace naukowe Inst. Technol. Bud. Masz. PWr, No. 20, Monograph Series No. 3, Wrocław, 1978.
• [10] KOWAL Z., WINIARSKI Z., A Computer System for Analysing and Optimising Thermal Displacements of Machining Centres (in Polish), Przegląd Mechaniczny, No. 21-22, 1990, 42-46.