Automatic Welding of Hollow Blade Based on Laser Vision Weld Tracking

XI Baolong; ZHANG Junming; DENG Xiaolong; XU Shunxin; LIAO Feng; LI Chunyan; KUANG Qinghua

doi:10.7512/j.issn.1001-2303.2022.11.13

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Automatic Welding of Hollow Blade Based on Laser Vision Weld Tracking
Vol. 52, Issue 11, Pages: 89-94(2022)
Received：04 June 2022，

Revised：2022-06-18，

Published：25 November 2022
DOI： 10.7512/j.issn.1001-2303.2022.11.13
稿件说明：

移动端阅览

席保龙，张峻铭，邓小龙，等.基于激光视觉焊缝跟踪的空心叶片自动焊研究［J］.电焊机，2022，52（11）：89-94. DOI： 10.7512/j.issn.1001-2303.2022.11.13.

XI Baolong, ZHANG Junming, DENG Xiaolong, et al.Automatic Welding of Hollow Blade Based on Laser Vision Weld Tracking[J].Electric Welding Machine, 2022, 52(11): 89-94. DOI： 10.7512/j.issn.1001-2303.2022.11.13.

摘要

针对自主核电空心叶片的手工电弧焊劳动强度大、焊接质量不稳定、生产效率低及成本高的问题，采用了一种激光视觉焊缝自主跟踪的自动化焊接方法。针对焊接多型号、大批量空心叶片激光示教焊缝跟踪不稳定、寻位不准确以及叶片焊接变形大的影响因素进行研究，修正了焊缝跟踪的激光视觉模型，优化了焊接程序和工艺参数，改进了激光器固定支架结构及工装设备。结果表明：自动焊激光视觉跟踪系统运行稳定，焊接空心叶片的生产效率提升44.5%，焊缝成形美观、可靠，更好地保证了产品质量，具有广阔的市场应用前景。

Abstract

Aiming at the problems of high labor intensity

unstable welding quality

low production efficiency and high cost in manual arc welding of hollow blade of autonomous nuclear power plant

an automatic welding method of laser vision welding seam tracking is adopted. The laser vision model of weld tracking was revised

the welding procedure and process parameters were optimized

and the structure and equipment of laser fixing bracket were deepened by studying the factors of unstable weld tracking

inaccurate locating and large deformation of blade welding. The results show that the automatic welding laser vision tracking system operates stably and the production efficiency of welding hollow blade is increased by 44.5%. The weld seam is formed beautifully and reliably

which better ensures the product quality and has broad market application value.

关键词

Keywords

references

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