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凸轮轴的自动化涡流检测方法与系统

杨航, 汪圣涵, 唐健, 康宜华

杨航, 汪圣涵, 唐健, 康宜华. 凸轮轴的自动化涡流检测方法与系统[J]. 无损检测, 2020, 42(11): 61-66. DOI: 10.11973/wsjc202011013
引用本文: 杨航, 汪圣涵, 唐健, 康宜华. 凸轮轴的自动化涡流检测方法与系统[J]. 无损检测, 2020, 42(11): 61-66. DOI: 10.11973/wsjc202011013
YANG Hang, WANG Shenghan, TANG Jian, KANG Yihua. Automatic eddy current testing method and system for camshaft[J]. Nondestructive Testing, 2020, 42(11): 61-66. DOI: 10.11973/wsjc202011013
Citation: YANG Hang, WANG Shenghan, TANG Jian, KANG Yihua. Automatic eddy current testing method and system for camshaft[J]. Nondestructive Testing, 2020, 42(11): 61-66. DOI: 10.11973/wsjc202011013

凸轮轴的自动化涡流检测方法与系统

基金项目: 

国家重点研发计划资助项目(2018YFB0106000)

详细信息
    作者简介:

    杨航(1994-),男,硕士研究生,主要从事无损检测技术及仪器研究工作

    通讯作者:

    康宜华, E-mail:yhkang@263.net

  • 中图分类号: TG115.28

Automatic eddy current testing method and system for camshaft

  • 摘要: 针对目前普遍使用的组合式凸轮轴凸轮表面微裂纹特征,采用跑道形线圈设计制作差动激励涡流探头,运用COMSOL软件仿真分析线圈间距、提离、圆弧凸面曲率半径等对裂纹检测信号的影响,获得了最优的差动激励涡流检测探头参数;然后根据凸轮轮廓特点,设计了三自由度探头跟踪机构,并搭建了基于该机构的无损检测实验平台进行检测性能的评价;最终根据实际大批量、高速、高精检测的需求,完整设计了凸轮轴自动化涡流检测系统,制定出高速、高精自动化的检测工艺,检测效率为30 s/件,最小检测深度为0.1 mm。
    Abstract: Aiming at detecting microcrack of the cam surface, the differential eddy current sensor was designed and made up by race track coils. And the COMSOL software was used to simulate and analyze the influence of coil spacing, lift-off, and curvature radius of the convex surface on crack signals. Then the optimal differential eddy current sensor parameters were obtained. According to the characteristics of the cam profile, the three-degree-of-freedom self-following structure was designed, and a flaw detection platform based on this structure to evaluate the detection performance was established. Finally, in order to meet the large-volume, high-speed and high-precision testing requirements in real industry, the whole camshaft automatic eddy current detection system was designed, and meanwhile a high-speed and high-precision automatic detection process was developed, in which the detection speed is 30 s/piece and the minimum detection depth is 0.1 mm.
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出版历程
  • 收稿日期:  2020-04-13
  • 刊出日期:  2020-11-09

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