Investigation of Ball Screws for Feed Drive

• Autorzy: Sobolewski J.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a method which enables the ball screw choice for machine tools feed drive with increasing cutting speed. It has been proven, that when the velocity deflection in the ball/balltrack area of the transitive phase of ball motion reaches a certain level, the repetitive shocks (impact forces) are generated. Digital simulation of these forces for variable length screws shaft and ball diameters in function of rotational speed has been performed. The research proves that impact forces increase not only as rotational velocity increases, but also with the increase of the ball diameters. The cases of the harmful accordance of the feed drive resonance vibrations with the frequency of the balls entering the load have been examined.

Słowa kluczowe

EN

ball screws; machine tools; rigidity; impact forces

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2013
• Tom: Vol. 13, No. 4
• Strony: 86--95
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Sobolewski J.

• Institute of Machine Design Fundamentals, Warsaw University of Technology, Warsaw, Poland

Bibliografia

• [1] SOBOLEWSKI J. Z., 2009, Ball screws, WNT Warszawa, (in Polish).
• [2] SOBOLEWSKI J. Z., 2011, Ball screws selection for CNC feed system, Machine Dynamics Research, 35/2, Warszawa, 72-79.
• [3] SOBOLEWSKI J. Z., 2012, Vibration of the ball screws drive, Engineering Failure Analysis, 24, Elsevier Ltd., 1-8.
• [4] SOBOLEWSKI J. Z., MALKINSKI J., PIENIECKI P., 2008, Simulation investigation of ball screw transmitting systems, Journal of Machine Engineering, 8/4, 59-67.
• [5] SOBOLEWSKI J. Z., MALKINSKI J., 2006, Estimation of the influence of machining errors on ball screw rigidity, Journal of Machine Engineering, 6/2, 37-44.
• [6] JEDRZEJEWSKI J., KWASNY W., 2013, Knowledge base and assumptions for holistic modeling aimed at reducing axial errors of complex machine tools, Journal of Machine Engineering, 13/2, 7-25.
• [7] SOBOLEWSKI J. Z., 2004, Selected problems of ball screw noise, Machining Engineering, 4/1-2, 193-200.
• [8] SOBOLEWSKI J. Z., 2007, Criteria of ball screws selection for CNC machines, Journal of Machine Engineering, 7/1, 42-50.
• [9] HUNG J.-P., WU J. S.-S., CHIU J. Y., 2004, Impact failure analysis of re-circulating mechanism in ball screw, Engineering Failure Analysis, Elsevier Ltd., 11/4, 561-573.
• [10] KOSMOL J., 1998, Servo drives of NC machines tools, WNT Warszawa. (in Polish).
• [11] ISO 3408-4: 2006, Ball screws - Part 4: Static axial rigidity.