基于响应面法的埋弧焊磁控传感器参数优化

发布时间：2018-02-02 07:08

本文关键词： 埋弧焊磁控传感器响应面法焊缝跟踪信号　出处：《焊接学报》2015年03期 　论文类型：期刊论文

【摘要】：为解决磁控埋弧焊传感器焊缝跟踪信号不稳定性、成形质量差等问题,采用BBD(Box-Behnken design)设计试验方案,基于响应面法建立了的埋弧焊焊缝自动跟踪磁控传感器参数(励磁频率、励磁电流、磁极高度、焊接电流)与预测响应值(焊缝跟踪信号、熔宽)的数学模型,并检验数学模型在试验点上的拟合情况,以能够根据跟踪信号质量和焊缝成形的要求优选传感器参数.并通过优化传感器参数来预测埋弧焊焊缝跟踪信号质量以及焊缝的熔宽,实现跟踪信号与焊缝成形的最佳组合,以提高磁控埋弧焊的焊缝跟踪精度及焊接质量.
[Abstract]:In order to solve the problems of instability of weld seam tracking signal and poor forming quality of magnetic controlled submerged arc welding (SAW) sensor, BBD(Box-Behnken design was used to design the test scheme. Based on the response surface method, a mathematical model of automatic tracking magnetic sensor parameters (excitation frequency, excitation current, magnetic pole height, welding current) and predicted response value (seam tracking signal, weld width) for submerged arc welding (saw) is established. The fitting of the mathematical model on the test point is also tested. The sensor parameters can be selected according to the quality of tracking signal and the requirements of weld forming, and the tracking signal quality and weld width of submerged arc welding can be predicted by optimizing the sensor parameters. The best combination of tracking signal and weld forming is realized in order to improve the seam tracking accuracy and welding quality of magnetically controlled submerged arc welding.
【作者单位】：湘潭大学机械工程学院;湖南石油化工职业技术学院;
【基金】：国家自然科学基金资助项目(50975243) 湖南省战略性新兴产业产学研结合创新平台创新能力资助项目(2012GK4100) 湖南省科技计划重点资助项目(2012-XK4068) 湖南省高校科技创新团队资助项目
【分类号】：TG409
【正文快照】： 0序言埋弧焊自动化程度高,对装配定位要求也很高[1].焊接时须随时观察、调节机头与焊缝中心的左右对中位置和导电嘴与焊件的上下相对距离.焊工的劳动强度大,调节精度低,经常出现焊偏和焊缝根部未焊透等缺陷,焊接质量不稳定,因此焊缝自动跟踪成为目前埋弧焊自动化技术的关键问

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