| 基于蛙跳式柔性三坐标测量系统误差理论分析 |
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| 引用本文： | 王凌云,张国玉,徐熙平. 基于蛙跳式柔性三坐标测量系统误差理论分析[J]. 机械工程学报, 2009, 45(4). DOI: 10.3901/JME.2009.04.304 |
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| 作者姓名： | 王凌云 张国玉 徐熙平 |
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| 作者单位： | 长春理工大学光电工程学院,长春,130022 |
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| 摘 要： | 数字化精密测量技术是数字化制造技术域得到推广使用,而科学研究和机械制造行业的技术进步又对三坐标测长仪提出更多新的要求,随着柔性三坐标测长仪的日益广泛应用,人们不仅关心测长仪的结构、原理和测量坐标的计算方法,同时更关心测长仪的精度分析及影响精度的各种因素.在柔性三坐标测量系统的理论分析基础上,推导出蛙跳式坐标转换方法,解决大尺寸零部件的测量问题,对蛙跳法进行论述,并建立坐标转换数学模型,推导出蛙跳后新坐标系相对原坐标系的坐标转换关系及n次蛙跳后的一般坐标转换公式.在引入矢量和矩阵的范数和条件数后,给出蛙跳后的测量误差的计算公式和坐标转换公式.在此基础上,分析蛙跳球的位置、蛙跳步长对大尺寸测量精度的重复影响,指出蛙跳球的最佳取位和每次蛙跳的最佳步长.
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| 关 键 词： | 柔性三坐标测量 坐标转换 蛙跳步长 蛙跳位置 |
Theoretical Analysis on the Error of Three Coordinate Measuring System Based on the Leapfrog Type |
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| WANG Lingyun,ZHANG Guoyu,XU Xiping. Theoretical Analysis on the Error of Three Coordinate Measuring System Based on the Leapfrog Type[J]. Chinese Journal of Mechanical Engineering, 2009, 45(4). DOI: 10.3901/JME.2009.04.304 |
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| Authors: | WANG Lingyun ZHANG Guoyu XU Xiping |
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| Affiliation: | College of Photoelectricity Engineering;Changchun University of Science and Technology;Changchun 130022 |
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| Abstract: | Digitized precision measurement technology is one of the key technologies in the digitized manufacturing technology.The three-coordinate measuring machine as digitized testing equipment for geometric size is extensively used in the machinery manufacturing, and the technological progress in scientific research and machinery manufacturing industries put forward more new requirements for the three-coordinate measuring machine.With the increasing application of flexible three-coordinate measuring machine, users... |
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| Keywords: | Flexible three-coordinate measurement Coordinate transformation Leapfrog step Leapfrog position |
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