| 三维焊缝形貌信息的变基准测量数据处理方法 |
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| 引用本文： | 杨建中,王宝山,黄科,彭芳瑜. 三维焊缝形貌信息的变基准测量数据处理方法[J]. 中国机械工程, 2011, 22(24) |
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| 作者姓名： | 杨建中 王宝山 黄科 彭芳瑜 |
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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： | 国家自然科学基金资助重点项目(50835004); 国家高技术研究发展计划(863计划)资助项目(2009AA04Z149) |
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| 摘 要： | 为了实现大型航空航天薄壁结构件的精密激光焊接,在研制开发＂5＋2＂轴激光焊接测量系统的基础上,提出了一种变基准测量数据处理方法,通过齐次坐标变换,将表达在局部测量基准下的三维焊缝形貌信息转换到统一的机床基准下,建立了三维焊缝的几何模型,并对机床几何误差进行了分析与补偿。以某型号航空航天结构模拟件为例,通过在线测量、数据处理、几何建模以及编程加工进行验证,结果表明该方法能够满足实际加工的要求。
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| 关 键 词： | 三维焊缝 激光焊接 变基准 多轴联动机床 |
A Processing Method for Measuring Data of 3-D Welding Seam Based on Active Framework |
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| Yang Jianzhong Wang Baoshan Huang Ke Peng Fangyu National NC System Engineering Research Center,Huazhong University of Science , Technology,Wuhan. A Processing Method for Measuring Data of 3-D Welding Seam Based on Active Framework[J]. China Mechanical Engineering, 2011, 22(24) |
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| Authors: | Yang Jianzhong Wang Baoshan Huang Ke Peng Fangyu National NC System Engineering Research Center Huazhong University of Science & Technology Wuhan |
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| Affiliation: | Yang Jianzhong Wang Baoshan Huang Ke Peng Fangyu National NC System Engineering Research Center,Huazhong University of Science & Technology,Wuhan,430074 |
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| Abstract: | In order to realize precise laser welding of the large-scale aerospace structure,a 5+2 axes laser welding & measuring system,as well as a processing method for measured data based on the active framework were developed.According to homogeneous coordinate transformation,local position and normal of 3-D welding seam were converted into global data to establish its geometric model which was reflected on the machine tool's reference coordinate.Then,the machine tool's geometric errors were analyzed and compensat... |
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| Keywords: | 3-D welding seam laser welding active framework multi-axis machine tool |
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