...Yanbiao Zou; Hengchang Zhou Purpose This paper aims to propose a weld seam tracking method based on proximal policy optimization (PPO). Design/methodology/approach By constructing a neural network based on PPO and using the reference image block and the image block to be detected as the dual...

...Changyang Li; Huapeng Wu; Harri Eskelinen; Haibiao Ji Purpose This paper aims to present a detailed mechanical design of a seven-degrees-of-freedom mobile parallel robot for the tungsten inert gas (TIG) welding and machining processes in fusion reactor. Detailed mechanical design of the robot...

...Robert Bogue Purpose This paper aims to provide details of vision-assisted robotic welding technologies and their applications. Design/methodology/approach Following a short introduction, this paper first considers the background of vision-assisted robotic welding, the functions of the vision...

...Yanbiao Zou; Jinchao Li; Xiangzhi Chen Purpose This paper aims to propose a set of six-axis robot arm welding seam tracking experiment platform based on Halcon machine vision library to resolve the curve seam tracking issue. Design/methodology/approach Robot-based and image coordinate systems...

...John Ogbemhe; Khumbulani Mpofu Purpose – The purpose of this paper is to review the progress made in arc welding automation using trajectory planning, seam tracking and control methodologies. Design/methodology/approach – This paper discusses key issues in trajectory planning towards...

...Wenhang Li; Yunhong Ji; Jing Wu; Jiayou Wang Purpose The purpose of this paper is to provide a modified welding image feature extraction algorithm for rotating arc narrow gap metal active-gas welding (MAG) welding, which is significant for improving the accuracy and reliability of the welding...

...Wenhang Li; Jing Wu; Ting Hu; Feng Yang Purpose – This paper aim to build an information fusion model that can predict the bottom shape of welding groove for better welding quality control. Arc sensor is widely used in seam tracking due to its simplicity and good accessibility, but it heavily...

...Na Lv; Yanling Xu; Jiyong Zhong; Huabin Chen; Jifeng Wang; Shanben Chen Purpose Penetration state is one of the most important factors for judging the quality of a gas tungsten arc welding (GTAW) joint. The purpose of this paper is to identify and classify the penetration state and welding quality...

...: www.universal‐robots.com Richard Bloss can be contacted at: rbloss@umich.edu © Emerald Group Publishing Limited 2013 Robots Delta Welding Machine tending End of arm tooling Programming Figure 3 A Universal Robot ML‐5 silently feeding parts into a CNC lathe...

...Xi‐Zhang Chen; Yu‐Ming Huang; Shan‐ben Chen Purpose Stereo vision technique simulates the function of the human eyes to observe the world, which can be used to compute the spatial information of weld seam in the robot welding field. It is a typical kind of application to fix two cameras on the end...

... design files. Design/methodology/approach Research into optimising the SMD process was carried out as part of the 6th Framework RAPOLAC project. This included developing both robotic and weld models, creating a weld controller, and using a design of experiments approach to optimise parameters based...

...Shanchun Wei; Meng Kong; Tao Lin; Shanben Chen Purpose This paper aims to develop a method to achieve automatic robotic welding and seam tracking so that three‐dimensional weld seam could be tracked without teaching and good welding formation could be accomplished. Design/methodology/approach...

... and more adaptable than ever before. Today's robotic solutions can better address application needs in a more cost‐effective manner than ever before. Richard Bloss can be contacted at: rbloss@umich.edu © Emerald Group Publishing Limited 2011 Robots Machine tools Welding Machine tending...

...Yu Liu; Jing Zhao; Shu‐Jun Chen; Zhen‐Yang Lu Purpose The purpose of this paper is to develop a portable all‐position welding robot for the welding of intersected pipes. Design/methodology/approach A complete procedure is adopted to conduct the design. The task and motion of the robot...

...T. Lin; H.B. Chen; W.H. Li; S.B. Chen Purpose The purpose of this paper is to develop an efficient online monitoring system. It can improve the welding quality through the real‐time analysis of the welding image information. Design/methodology/approach In this paper, a set‐variable precision...

...Youlun Xiong; J.F. Wang; W.Y. Wang; S.B. Chen Purpose The control of weld penetration in gas tungsten‐arc welding (GTAW) is required for fully automated systems to overcome variations in the welding process. The surface depression of weld pool, or weld pool height, has a close relationship...

...Youlun Xiong; Fanhuai Shi; Tao Lin; Shanben Chen Purpose The weld seam detection is required for a welding robot to preplan the weld seam track before the actual welding. The purpose of this paper is to investigate this subject in natural lighting conditions. Design/methodology/approach...

... introduced three innovations at IMTS. The KR 5, six‐axis arc welding robot, takes very little space, can be floor or ceiling mounted and offers a 1,400 mm working envelope. It has a 5 kg payload capability with a 12 kg supplementary load capability as well. The KR 5 weighs only 120 kg and is available...

...J. Norberto Pires; Eduardo José Lima, II; Alexandre Queiroz Bracarense Purpose Shielded metal arc welding (SMAW) is a typical manual process with many important but dangerous applications for the welder. The purpose of this paper is to present a methodology developed for execution time trajectory...

... Publishing Limited 2008 Welding Jets Mouldability Simulation Robotics Assembly Chicago was the site of a number of shows in 2007 that featured robots. Each show brought out new products to solve an every increasing number of applications needs. PWR Robotics & Packaging...