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Rapid evaluation technology for CNC machine tool
slide level based on built-in sensors |
Yuqing ZHOU,Xuesong MEI,Gedong JIANG,Nuogang SUN, |
School of Mechanical
Engineering, Xi’an Jiaotong University, Xi’an 710049,
China; |
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Abstract Slide level impacts the CNC machine tool performance. The deterioration of slide level will result in the torsional vibration of a feed-axis control system and lower the CNC machine tool control precision. It is necessary to investigate the rapid evaluation technology for the slide level of a CNC machine tool. In this paper, a new type of rapid evaluation method for machine tool slide level is proposed, which uses the linear scale, motor encoder, and AC servo motor current/output torque. To acquire level information, the built-in sensors test principle is profoundly investigated, and the mathematical model between the slide level and the measured data is established. In addition, two different level identification methods are comparatively analyzed. The analysis results of experiments show that it is simple, rapid, feasible, and reliable to use built-in sensors information for evaluating slide level.
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Keywords
slide level
built-in sensors
Stribeck effect
model identification
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Issue Date: 05 March 2010
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Schlesinger G. TestingMachine Tools. Oxford: Pergamon Press, 1978
|
|
Chen G Q, Yuan J X, Ni J. A displacement measurement approach for machine geometricerror assessment. International Journalof Machine Tools & Manufacture, 2001, 41: 149―161
doi: 10.1016/S0890-6955(00)00049-3
|
|
Whalley R, Ebrahimi M, Abdul-Ameer A. Hybrid modeling of machine tool axis drives. International Journal of Machine Tools & Manufacture, 2005, 45: 1560―1576
|
|
Altintas Y. ManufacturingAutomation: Metal Cutting Mechanics, Machine Tool Vibrations, andCNC Design. Cambridge: Cambridge University Press, 2000
|
|
Jeong Y H, Min B K, Cho D W. Estimation of machine tool feed drive inclination fromcurrent measurements and a mathematical model. International Journal of Machine Tools & Manufacture, 2006, 46: 1343―1349
doi: 10.1016/j.ijmachtools.2005.10.015
|
|
Jeong Y H, Cho D W. Estimating cutting forcefrom rotating and stationary feed motor currents on a milling machine. International Journal of Machine Tools & Manufacture, 2002, 42: 1559―1566
doi: 10.1016/S0890-6955(02)00082-2
|
|
Kim G D, Chu C N. Indirect cutting force measurementconsidering frictional behavior in a machining centre using feed motorcurrent. The International Journal of AdvancedManufacturing Technology, 1999, 15: 478―484
doi: 10.1007/s001700050092
|
|
Lacalle L N, López de, Lamikiz A, Sánchez J A. Recording of real cutting forces along the milling of complex parts. Ferna′ndez de Bustos Mechatronics, 2006,16: 21―32
|
|
Yeung C H, Altintas Y. Virtual CNC system-Part I:system architecture. International Journalof Machine Tools & Manufacture, 2006, 46: 1107―1123
doi: 10.1016/j.ijmachtools.2005.08.002
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