| 基于球杆仪的数控机床空间误差建模与检测方法研究 |
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| 引用本文： | 封志明,殷国富. 基于球杆仪的数控机床空间误差建模与检测方法研究[J]. 西华大学学报(自然科学版), 2014, 33(4): 20-23. DOI: 10.3969/j.issn.1673-159X.2014.04.005 |
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| 作者姓名： | 封志明 殷国富 |
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| 作者单位： | 西华大学机械工程与自动化学院;四川大学制造科学与工程学院 |
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| 基金项目： | 国家科技重大专项资助项目(2010ZX04015-011);四川省教育厅自然科学项目(12ZB133);西华大学重点实验室开放研究基金资助项目(szjj2013-041) |
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| 摘 要： | 为改善传统的数控机床空间误差检测方法检测时间长、成本高、操作复杂等缺点，提出一种新的基于球杆仪的空间误差分析与检测方法。沿半球螺旋线轨迹对数控机床空间误差进行检测，并利用多元回归分析理论建立空间误差的综合模型；利用所建的回归模型对不同检测点的误差进行预测和补偿。实验结果表明，该方法可将实验所用的立式加工中心几何误差减小80%左右。
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| 关 键 词： | 数控机床 空间误差 回归分析 误差补偿 球杆仪 |
Research on Modeling of Volumetric Errors and Detection Method for CNC Machine Tools Using Ball Bar |
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| FENG Zhi-ming;YIN Guo-Fu. Research on Modeling of Volumetric Errors and Detection Method for CNC Machine Tools Using Ball Bar[J]. Journal of Xihua University(Natural Science Edition), 2014, 33(4): 20-23. DOI: 10.3969/j.issn.1673-159X.2014.04.005 |
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| Authors: | FENG Zhi-ming YIN Guo-Fu |
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| Affiliation: | FENG Zhi-ming;YIN Guo-Fu;School of Mechanical Engineering and Automation,Xihua University;School of Manufacturing Science and Engineering,Sichuan University; |
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| Abstract: | Traditional detection method for volumetric errors of CNC machine tools has many shortcomings, such as time-consu- ming, high cost and being complicated to operate, in order to improve it, the authors proposed a novel analysis and detection method of the volumetric errors of machine tools, in which a hemispherical helix ball bar test was used. The error testing points in different posi- tions were predicted and compensated with a buih regression model. The experiment on a vertical machining centre for verifying the modeling and detection method showed that about an 80% reduction in geometric error was attained. |
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| Keywords: | CNC machine tool volumetric error regression analysis error compensation ball bar |
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