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Comparison of accuracy stability using a thermal compensator and grating ruler

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Abstract

The disadvantages of the closed-loop control of CNC machine tool feed drive systems using grating rulers were analyzed, including the reason why thermal compensators cannot be widely used on machine tools. A new modeling method based on the heat transfer theory for half-closed-loop feed drive systems is proposed to solve the poor robustness of commonly used thermal models, and the modeling and parameter optimization procedures are presented. In the new modeling method, the thermal errors caused by ambient temperature variation and ball-screw friction were calculated separately. Based on the heat production, heat conduction, and heat convection theory, the ball-screw temperature field at any given time can be obtained to predict the ball-screw thermal errors. Experiments were conducted on a vertical machining center VMC1100p, and the test process, compensation principle, and communication configuration between the compensator and CNC are presented. Finally, the accuracy stability of a half-closed-loop feed drive system after the compensation was found to be far higher than that before the compensation, and also far higher than that obtained under closed-loop control using a grating ruler.

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References

  1. Tao T, X M, Gedong J, Nougang S (2005) Worktable precision adjustment based on error analysis of ballbar transducer and linear grating sensor. Nanotechnol Precis Eng 3(4):268–272

    Google Scholar 

  2. Bonian J (2007) Sensor technology. Southeast University Press, Nanjing

    Google Scholar 

  3. Chen S, Jia F (2009) Fuzzy reliability analysis of mechanical precision. J Nanjing Norm Univ Eng Technol Edn 9(1):8–11

    MathSciNet  Google Scholar 

  4. Jin ZF, Wang P (2012) Neural network-based thermal error modeling in ball screw. Modul Mach Tool Autom Manuf Tech 1:67–70

  5. Mize CD, Ziegertb JC (2000) Neural network thermal error compensation of a machining center. Precis Eng 24:338–346

    Article  Google Scholar 

  6. Zhu J (2008) Robust thermal error modeling and compensation for CNC machine tools, PhD Thesis, University of Michigan—Ann Arbor, USA

  7. Ozkan MT (2013) Experimental and artificial neural network study of heat formation values of drilling and boring operations on Al 7075 T6 workpiece. Indian J Eng Mater Sci 20:259–268

    Google Scholar 

  8. Pajor M, Zapłata J (2011) Compensation of thermal deformations of the feed screw in a CNC machine tool. Adv Manuf Sci Technol 35:9–17

    Google Scholar 

  9. Horejs O, Mares M, Kohut P, Barta P, Hornych J (2010) Compensation of machine tool thermal errors based on transfer functions. MM Sci J 3:162–165

  10. Xia JY, Wu B, Hu YM (2008) The thermal dynamic characteristic of ball-screw under the variational multi-thermal source. Chin Mech Eng 19(8):955–958

    Google Scholar 

  11. Liu B (2013) Temperature field and thermal deformation of feed system on gantry machining center. Nanjing University of Aeronautics and Autronautics

  12. Holroyd G (2007) The modeling and correction of ball-screw geometric, thermal and load errors on CNC machine tools. The University of Huddersfield

  13. Guo X, Song X, Cui Y (2013) Optimization on dynamic and fuel economy of electric vehicles based on Isight. Comput Aided Eng 22(2):211–214

  14. Wei W, Qu J, Wu J, Yan Q (2011) Research on optimization method for shift schedule of tracked vehicle with hydrodynamic-mechanical transmission. Acta Armamentarii 32(4):403–407

  15. Zhou W (2010) Research on Compensation in CNC machine based on FANUC 0i MC. 3:115–117

Download references

Acknowledgments

This research was supported by the National Science and Technology Major Project of China (2013ZX04011011).

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Authors and Affiliations

  1. College of Mechanical Science and Engineering, Jilin University, Changchun, 130025, China

    Kuo Liu

  2. State Key Laboratory, Shenyang Machine Tool (Group) CO., LTD., Shenyang, 110142, China

    Mingjia Sun, Yuliang Wu & Tiejun Zhu

Authors
  1. Kuo Liu
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  2. Mingjia Sun
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  3. Yuliang Wu
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  4. Tiejun Zhu
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Corresponding author

Correspondence to Kuo Liu.

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Technical Editor: Alexandre Mendes Abrao.

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Liu, K., Sun, M., Wu, Y. et al. Comparison of accuracy stability using a thermal compensator and grating ruler. J Braz. Soc. Mech. Sci. Eng. 38, 2403–2411 (2016). https://doi.org/10.1007/s40430-016-0491-0

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  • DOI: https://doi.org/10.1007/s40430-016-0491-0

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