Abstract
In order to improve the quality of five-axis machining, the effects of milling force in feed drives have to be considered comprehensively so as to obtain better dynamic performance. In this paper, a model of five-axis machine tool feed system is established to analyze the influence of milling force on the feed drive dynamic performance. The equivalent disturbance on each axis is deduced based on the instantaneous milling force model. A cutting force model has been provided from Tool Coordinate System to Machine Coordinate System for disturbance estimation in each feed drives of five-axis machine tool. The cutting force on the workpiece is transformed to the load torque on each motor through the estimation matrix. Therefore, a control strategy of the five-axis contour error caused by milling force is proposed. Both the contour error and tool orientation error are pre-compensated based on the dynamic of the feed drives. Finally machining experiment was performed to verify the high accuracy of equivalent milling disturbance estimation. The result also proves that the five-axis contour error caused by milling force can be greatly reduced through the contour error compensation. It provides a practical application in high-quality five-axis machining.
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References
Altintas Y, Verl A, Brecher C, Uriarte L, Pritschow G (2011) Machine tool feed drives. CIRP Ann 60(2):779–796
Frey S, Dadalau A, Verl A (2012) Expedient modeling of ball screw feed drives. Prod Eng 6(2):205–211
Erkorkmaz K, Altintas Y (2001) High speed CNC system design. Part II: modeling and identification of feed drives. Int J Mach Tool Manu 41(10):1487–1509
Pi SW, Liu Q, Liu H (2016) 5-Axis feed drive modelling and spatial contour error analysis based on dynamics of servo system. 2016 Ieee International Conference on Mechatronics And Automation:856–861
Altintas Y, Khoshdarregi MR (2012) Contour error control of CNC machine tools with vibration avoidance. CIRP Ann 61(1):335–338
Kardes N, Altintas Y (2007) Mechanics and dynamics of the circular milling process. J Manuf Sci Eng 129(1):21
Montgomery D, Altintas Y (1991) Mechanism of cutting force and surface generation in dynamic milling. Journal of Engineering for Industry 113(2):160
Gonzalez H, Calleja A, Pereira O, Ortega N, de Lacalle LNL, Barton M (2018) Super abrasive machining of integral rotary components using grinding flank tools. Metals 8(1):24
Whalley R, Ebrahimi M, Abdul-Ameer AA (2005) Hybrid modelling of machine tool axis drives. Int J Mach Tools Manuf 45(14):1560–1576
Du Z, Zhang D, Hou H, Liang SY (2016) Peripheral milling force induced error compensation using analytical force model and APDL deformation calculation. Int J Adv Manuf Technol 88(9–12):3405–3417
Kao Y-C, Nguyen N-T, Chen M-S, Su S-T (2014) A prediction method of cutting force coefficients with helix angle of flat-end cutter and its application in a virtual three-axis milling simulation system. Int J Adv Manuf Technol 77(9–12):1793–1809
Erkorkmaz K, Altintas Y (2001) High speed CNC system design. Part III: high speed tracking and contouring control of feed drives. Int J Mach Tool Manu 41(11):1637–1658
Erkorkmaz K, Wong W (2007) Rapid identification technique for virtual CNC drives. Int J Mach Tools Manuf 47(9):1381–1392
Rafan NA, Jamaludin Z, Chiew TH, Abdullah L, Maslan MN (2015) Contour error analysis of precise positioning for ball screw driven stage using friction model feedforward. Procedia CIRP 26:712–717
Pi S, Liu Q, Liu Q (2018) A novel dynamic contour error estimation and control in high-speed CNC. Int J Adv Manuf Technol
Uchiyama N (2008) Robust contouring control for biaxial feed drive systems. Int J Mach Tools Manuf 48(11):1234–1241
Ernesto CA, Farouki RT (2009) Solution of inverse dynamics problems for contour error minimization in CNC machines. Int J Adv Manuf Technol 49(5–8):589–604
Koren Y (1980) Cross-coupled biaxial computer control for manufacturing systems. J Dyn Syst Meas Control 102(4):265
Ramesh R, Mannan MA, Poo AN (2005) Tracking and contour error control in CNC servo systems. Int J Mach Tools Manuf 45(3):301–326
Yang J, Altintas Y (2015) A generalized on-line estimation and control of five-axis contouring errors of CNC machine tools. Int J Mach Tools Manuf 88:9–23
Bui BD, Uchiyama N, Simba KR (2016) Contouring control for three-axis machine tools based on nonlinear friction compensation for lead screws. Int J Mach Tools Manuf 108:95–105
Zhang K, Yuen A, Altintas Y (2013) Pre-compensation of contour errors in five-axis CNC machine tools. Int J Mach Tools Manuf 74:1–11
Olsson H, Åström KJ, Canudas de Wit C, Gäfvert M, Lischinsky P (1998) Friction models and friction compensation. Eur J Control 4(3):176–195
She C-H, Chang C-C (2007) Design of a generic five-axis postprocessor based on generalized kinematics model of machine tool. Int J Mach Tools Manuf 47(3–4):537–545
Piegl Les TW (1997) The NURBS book. Second edn. Springer-Verlag Berlin Heidelberg, New York
Acknowledgements
The authors would like to thank for the financial support from the National Key Research and Development of China (No. 2016YFB1102503) and National Science Foundation of China (No.11290144). Also, the first author would like to express his thanks to WY Tang for offering great guidance and support.
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Pi, S., Liu, Q., Sun, P. et al. Five-axis contour error control considering milling force effects for CNC machine tools. Int J Adv Manuf Technol 98, 1655–1669 (2018). https://doi.org/10.1007/s00170-018-2333-y
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DOI: https://doi.org/10.1007/s00170-018-2333-y