| 自适应PID的薄壁筒体TIG焊接熔透控制研究 |
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| 引用本文： | 代克杰,王勤,赵丽,曾申波. 自适应PID的薄壁筒体TIG焊接熔透控制研究[J]. 电子技术应用, 2010, 0(6) |
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| 作者姓名： | 代克杰 王勤 赵丽 曾申波 |
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| 作者单位： | 武汉大学,动力与机械学院,湖北,武汉,430072;苏州热工研究院,在役检查中心,江苏,苏州,215001 |
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| 基金项目： | 科技部科技型中小企业技术创新基金 |
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| 摘 要： | 在薄壁筒体环缝焊接中,工艺参数以及坡口尺寸的波动都会导致焊接熔透状态的变化。为保证稳定的熔透,需要对焊接熔透状态进行实时检测和控制。针对薄壁筒体环缝TIG焊,建立了基于视觉传感的直接传感法,获取了清晰的熔池背面图像,经图像处理得到了满足熔透要求的熔池背面熔宽范围,并通过自整定PID控制器调节焊接速度,对熔透状态进行自适应控制。结果表明,该方法对熔透状态信号提取可靠,基本消除了熔透状态间接传感法的控制盲区。
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| 关 键 词： | 薄壁筒体环缝 熔透状态 图像处理 自整定PID |
The research of adaptive PID for the thin-walled cylinder TIG welding penetration control |
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| DAI Ke Jie,WANG Qin,ZHAO Li,ZENG Shen Bo. The research of adaptive PID for the thin-walled cylinder TIG welding penetration control[J]. Application of Electronic Technique, 2010, 0(6) |
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| Authors: | DAI Ke Jie WANG Qin ZHAO Li ZENG Shen Bo |
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| Affiliation: | DAI Ke Jie1,WANG Qin2,ZHAO Li1,ZENG Shen Bo1(1.School of Power and Mechanical Engineering,Wuhan University,Wuhan 430072,China,)(2.Center of In-service Inspection,Suzhou Nuclear Power Research Institute,Suzhou 215001,China) |
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| Abstract: | The fluctuations of process parameters and groove dimensions would lead to the change of weld penetration state in the thin-walled cylinder girth weld,the penetration state were needed to detect and control real-time in order to ensure stable penetration.A vision-based direct sensing method was established for thin-walled cylinder TIG weld,the clear back pool image was got,the wide range back melt pool of penetration requirement have been got by the image process,the penetration state could be controlled by... |
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| Keywords: | thin-walled cylinder girth weld penetration state image processing self-tuning PID |
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