| 基于嵌入式DSP视觉伺服平台的管道MIG打底焊焊缝成形控制 |
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| 引用本文： | 黄操,孙振国,陈强,廖剑雄,王定贺,陈卫中.基于嵌入式DSP视觉伺服平台的管道MIG打底焊焊缝成形控制[J].焊接学报,2009,30(4):41-44. |
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| 作者姓名： | 黄操 孙振国 陈强 廖剑雄 王定贺 陈卫中 |
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| 作者单位： | 1. 清华大学,先进成形教育部重点实验室,北京,100084
2. 昆山市华恒焊接设备技术有限责任公司,江苏,昆山,215301 |
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| 基金项目： | 国家自然科学基金资助项目(50875147);;国家863高技术研究发展计划资助项目(2007AA04Z258) |
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| 摘 要： | 针对坡口加工及焊接变形等因素引起的焊缝坡口宽度不确定性变化影响焊缝成形的问题,建立了基于嵌入式DSP(digital signal processor)视觉伺服平台的管道MIG打底焊焊缝成形控制系统.所设计的视觉伺服平台采用TMS320DM642实现焊接熔池区域图像的采集与处理,采用TMS320F2812实现焊枪位姿和焊接工艺参数的实时调整.设计了专门的图像处理算法,分离并提取熔池、焊缝和焊丝的位置信息.通过对焊缝坡口宽度变化的视觉检测,实时调节焊接速度、焊枪摆动宽度和中心位置等参数,获得了外观良好、X光检验合格的焊缝成形.
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| 关 键 词： | MIG打底焊 视觉伺服 嵌入式DSP系统 熔池区域图像 图像处理 |
| 收稿时间： | 2008/5/6 0:00:00 |
Weld seam formation control of root pass for pipeline MIG welding based on an embedded DSP visual servo platform |
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| HUANG Cao,SUN Zhenguo,CHEN Qiang,LIAO Jianxiong,WANG Dinghe and CHEN Weizhong.Weld seam formation control of root pass for pipeline MIG welding based on an embedded DSP visual servo platform[J].Transactions of The China Welding Institution,2009,30(4):41-44. |
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| Authors: | HUANG Cao SUN Zhenguo CHEN Qiang LIAO Jianxiong WANG Dinghe and CHEN Weizhong |
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| Affiliation: | 1.Key Laboratory for Advanced Materials Processing Technology;Department of Mechanical Engineering;Tsinghua University;Beijing 100084;China;2.Huaheng Welding Equipment & Technical Co.Ltd.Kunshan 215301;Jiangsu;China |
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| Abstract: | In the root pass of pipeline MIG welding,the unpredicted gap variation of weld seam caused by groove-preparing or welding deformation has extremely significant influence on the quality of weld seam.For this reason,a weld seam formation control system based on an embedded DSP(digital signal processor) visual servo platform was established.In the visual servo platform,TMS320DM642 has been used to grab and process the image in the weld pool area and TMS320F2812 has been used to accomplish real-time adjusting o... |
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| Keywords: | root pass MIG welding visual servo embedded DSP system image of weld pool area image processing |
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