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根据对国内外管道焊接机器人计算机控制系统现状分析,提出我国研制管道焊接弧焊机器人专用测控软件系统必要性,设计了管道焊接机器人生产、调试及焊接通用一体化计算机测控软件系统,该系统的应用提高了管道焊接机器人生产效率。 相似文献
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众多焊接参数的合理匹配和有效控制是管道环缝全位置焊接过程自动化的难题之一。结合路径示教、参数匹配及参数控制等技术,建立了管道环缝全位置焊接过程自动控制系统,并介绍了其工作原理、系统构成和软件设计。该系统能根据焊接位置自动匹配焊接电流、电弧电压、焊接速度以及焊炬摆动的速度和幅度等参数,并通过调节送丝速度实现了焊接电流的PID控制,通过调整焊炬高度实现了电弧长度的模糊控制。该系统还具有离线编程、路径示教和记忆跟踪等功能。将该系统用于非旋转管道环缝全位置焊接过程,实现了打底、填充和盖面焊接的自动控制。结果表明,实际焊接参数与预设值吻合良好,焊缝成形稳定。 相似文献
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由于管道全位置自动焊接时焊接位置不断变化,焊接自动化难度较高,针对管道自动焊接的特殊性和复杂性,以国外先进的PWT最新的DWS.03焊接系统为研究对象,PWT能从外部焊接从打底到填充的整个焊缝,特别先进的是外部进行根焊。介绍了管道外焊接打底到盖面的焊接工艺,详细分析软件系统如何通过程序设置,实现管道焊接自动化控制。在研究过程中发现该焊接系统能自动焊接高品质环焊缝,但是系统还是可以从焊枪角度和驻留时间不对称设置进行升级,进一步提高外焊机的适用范围。 相似文献
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为保证大型化工装置产品建设质量,就其工艺管道系统错综复杂、焊接与无损检测管理难度大的特点利用现代计算机技术对焊接与无损检测信息进行系统管理,因此NEWS应运而生,本文对该系统的产生、现状、基本功能和发展前景进行了介绍和探讨。 相似文献
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简要介绍了采用PLC为控制核心的风缸自动焊控制系统的软件和硬件,并探讨了自动焊控制系统中的电机调速电路,该控制系统在各的表明:控制系统软硬件设计合理,具有较高的可靠性,能够满足高质量风缸自动化生产的要求。 相似文献
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详细介绍钢丝网片多点焊机的微机控制系统原理及其硬件,软件设计,采用微机控制,可以解决多参量控制和复杂生产过程程序控制协调运行,符合现代生产设备的发展趋势。 相似文献
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H. I. Shafeek E. S. Gadelmawla A. A. Abdel-Shafy I. M. Elewa 《NDT & E International》2004,37(4):301-307
Automatic inspection of welded gas pipelines is desirable because human inspectors are not always consistent evaluators. In addition, automatic inspection decreases the cost of inspection process and improves the inspection quality. In this paper, an expert vision system for automatic inspection of gas pipeline welding defects from radiographic films is presented. The proposed system has been established in the Metrology lab, Mansoura University, Faculty of Engineering. The software, named AutoWDI, is fully written in lab using Microsoft Visual C++ and is ready to run on any Windows environment. The proposed vision system is used to capture images for the radiographic films then applies various image processing and computer vision algorithms to recognize the defects and to make acceptance decisions according to international standards. The expert system is based on a knowledge base, which was gathered from specialists, textbooks and international standards. The proposed system is capable of identifying and testing the main types of welding defects (11 defects) in gas pipelines welded by shielded metal arc welding. 相似文献
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In reducing the costs associated with the fabrication of new pipelines for transporting hydrocarbons (pipelines), circumferential joint welding activities have a significant impact on total cost per km. LASER–MIG hybrid welding (LB–GMAW), with fibre-optic LASER beam delivery, offers the opportunity for reducing fabrication costs, thanks to increased productivity, despite the higher initial investment. The aim of this work is to demonstrate the feasibility of pipeline fabrication using LB–GMAW hybrid welding technology for the circumferential welding of large diameter pipes (36″) for gas pipelines, on X100 high-grade steel with nominal thickness of 16 mm. Solid-state LASER systems with fibre-delivered LASER beam (Nd:YAG and Yb:SiO2) have been used in this study. The hybrid welding system has been shown to be of potential interest since, by guaranteeing adequate mechanical properties, it ensures increased productivity (reduced number of passes and increased welding speed). 相似文献
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针对微动开关式弧焊跟踪传感器在现有应用上存在的不足,本文提出了一种新颖的焊缝偏差延时记忆控制方法。文中介绍了弧焊跟踪主/从式单片机控制系统的硬件及软件设计,并对系统的跟踪调节作用过程进行理论分析。试验研究表明,该系统工作可靠,控制方案正确,适用于较大曲率焊缝的跟踪,有实际应用价值。 相似文献