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Research and implementation of high-precision biaxial tracking control system based on NURBS interpolator

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Abstract

Many factors affect machining quality such as feedrate fluctuations, chord errors, machining time, machine characteristics, and unreasonable planning. Compared with traditional interpolations, parametric interpolations perform better at reducing feedrate fluctuations, chord errors, and it can save interpolation time. Reasonable feedrate planning and dynamic motion control are also necessary for precision improving. In this paper, NURBS interpolation is employed and feedrate is planned on basis of curve geometry and machine dynamic characters. Furthermore, a synthesized control algorithm is applied in control system to refine following accuracy. Simulation and experimental results demonstrate that the proposed approach can significantly reduce the machining error for biaxial following task.

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Authors and Affiliations

  1. Harbin Institute of Technology Shenzhen Graduate School, Shenzhen, China

    Xin Wang, Nengfeng Liu & Maobin Wang

Authors
  1. Xin Wang
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  2. Nengfeng Liu
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  3. Maobin Wang
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Correspondence to Xin Wang.

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Wang, X., Liu, N. & Wang, M. Research and implementation of high-precision biaxial tracking control system based on NURBS interpolator. Int J Adv Manuf Technol 52, 255–262 (2011). https://doi.org/10.1007/s00170-010-2732-1

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  • DOI: https://doi.org/10.1007/s00170-010-2732-1

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