| 数控机床空间误差的无模测量与补偿 |
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| 引用本文： | 张虎,周云飞,唐小琦,师汉民.数控机床空间误差的无模测量与补偿[J].华中科技大学学报(自然科学版),2002,30(1):74-77. |
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| 作者姓名： | 张虎 周云飞 唐小琦 师汉民 |
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| 作者单位： | 华中科技大学国家数控系统工程技术研究中心,武汉,430074 |
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| 基金项目： | 国家高技术研究发展计划资助项目 (86 3 5 11 82 0 0 0 4)，国家博士后科学基金资助项目 |
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| 摘 要： | 提出了用激光杆仪直接测量数控机床刀具的定位误差，实现空间误差无模识别的方法，建立了误差预报的三维网格模型，利用有限元方法实现空间任意一点误差的预报，在XK713数控加工中心上进行了本方法的误差测量，预报和补偿实验，结果表明所提出的误差测量方法具有操作方便、成本底、精度高的特点，误差的预报和补偿效果显著。
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| 关 键 词： | 数控机床 误差测量 误差补偿 激光球杆仪 空间误差 无模测量 定位误差 |
| 文章编号： | 1671-4512(2002)01-0074-04 |
| 修稿时间： | 2001年7月5日 |
Measurement and compensation of the volumetric errors of CNC machine tools without the use of an error model |
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| Zhang Hu Zhou Yunfei Tang Xiaoqi Shi Hanmin National NC Syteme Eng. Reseach Center,HUST,Wuhan ,China..Measurement and compensation of the volumetric errors of CNC machine tools without the use of an error model[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2002,30(1):74-77. |
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| Authors: | Zhang Hu Zhou Yunfei Tang Xiaoqi Shi Hanmin National NC Syteme Eng Reseach Center HUST Wuhan China |
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| Institution: | Zhang Hu Zhou Yunfei Tang Xiaoqi Shi Hanmin National NC Syteme Eng. Reseach Center,HUST,Wuhan 430074,China. |
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| Abstract: | By using a laser ball bar, a novel method with low cost, simplicity of setup and quick measurements is developed to directly identify the total position errors at the tip of the tool of a multi axis machine tool without the use of an error model. The error vector components at different location are in the machine work space are stored in a 3D lattice. To predict the volumetric errors at any point is in the workspace, and a new method is proposed by using the meshing concepts developed in the finite element method literature. The developed strategies are tested by a CNC machine and the results verify the effectiveness of the method. |
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| Keywords: | CNC machine tools errors measurement error compensation laser ball bar |
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