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Optimization of cutter orientation for multi-axis NC machining based on minimum energy consumption of motion axes

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Abstract

A cutter axis optimization method for multi-axis machining based on minimum energy consumption of motion axes is presented in this paper to avoid the unstable running status of the machine tool induced by unreasonable cutter directions in multi-axis machining of sculptured surfaces. Firstly, a mathematic model based on minimum energy consumption of motion axes of the machine tool is established to achieve minimum energy consumption of the machine tool feed system. Secondly, the feasible space meeting the requirements of collision avoidance of the cutter orientation and the travel limit of each movement axis are constructed in the machine tool coordinate system, and the change of rotation axis angle of the machine tool is restrained by introducing the rule curve of sinusoidal acceleration. Then, the smooth feasible cutter axis sequences are obtained with no rigid impact or flexible impact on the machine tool. Finally, a machining experiment is carried out, and the results show that the presented method can save the energy consumption of the feed system by an average of 3.36% as well as smoothing the cutting process.

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Funding

This work was sponsored by the Natural Science Foundation of China (No. 51475382), Major national special projects (No. 2015ZX04001202), China Postdoctoral Science Foundation (No. 2018M633537), and Basic research plan of natural science in Shangxi province (No. 2018JQ5086).

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Authors and Affiliations

  1. Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Education, Northwestern Polytechnical University, Xi’an, 710072, China

    Baohai Wu & Ying Zhang

  2. Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang, 621000, Sichuan, China

    Mancang Liang

  3. College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an, 710054, China

    Feiyan Han

Authors
  1. Baohai Wu
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  2. Mancang Liang
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  3. Feiyan Han
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  4. Ying Zhang
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Correspondence to Ying Zhang.

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Wu, B., Liang, M., Han, F. et al. Optimization of cutter orientation for multi-axis NC machining based on minimum energy consumption of motion axes. Int J Adv Manuf Technol 104, 1855–1867 (2019). https://doi.org/10.1007/s00170-019-03926-5

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  • DOI: https://doi.org/10.1007/s00170-019-03926-5

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