Simulation And Analysis Of Double-sided Arc Welding Robot Working Station For Aluminum Alloy Traction Beam Of Urban Railway Carriage

In recent years, with the fast development of railway vehicle industry in ourcountry, the expanding of railway transportation scale has put forward higherrequirements on the production quality and production efficiency of railway vehicles.Aluminum alloy traction beam is an important load-bearing component and its qualitydirectly affects the service life of the vehicle. Quality of aluminum alloy tractionbeam which uses traditional manual welding is not easy to control, and the productionefficiency is low, so it is necessary to develop new process method. At the same time,using the automatic welding technology can effectively improve the product qualityand production efficiency.In this paper, a new method of double-sided arc welding is proposed through theanalysis of traditional welding process of aluminum alloy traction beam. Adoptingdouble-sided arc welding method can greatly improve the welding efficiency. Relativeto other welding methods, the double-sided arc welding has advantages of smallamount of heat input, small welding deformation and large depth of molten, so thewhole deformation of the aluminum alloy traction beam after welding is greatlyreduced. In order to obtain reliable welding quality and high welding efficiency,double-sided arc welding robot system is used to complete the automatic welding ofaluminum alloy traction beam. In order to fit for the double-sided arc welding robotsystem, the corresponding fixtures are designed and the welding process of aluminumalloy traction beam is optimized.To shorten the period of robot workstation’s planning and design, the digitalsimulation technology is used in this article. This article also has carried on simulationanalysis of the double-sided arc welding robot workstation of aluminum alloy tractionbeam which includes layout planning, welding route planning and collision interference and etc. CATIA is used to build digital model of every resource, andthe simulation model of double-sided arc welding robot workstation is got after thesedigital models are imported DELMIA simulation platform. Resource layout module,device task definition module, workcell sequencing module and etc. are used inDELMIA software. The layout of the various resources is planned and analyzed, andthen the rational layout of the workstation is obtained in this workstation simulationmodel. At the same time, double robot welding paths of multiple welding processesare planned and optimal double robot welding paths are obtained. Then collisioninterference inspection is completed in the simulation process. We can ensure thesafety of the workstation which can be continuously adjusted in the process. Robotoff-line program which is obtained by process simulation of double-sided arc weldingrobot working station for aluminum alloy traction beam is output finally. It can betaken as reference to the actual teaching robot programming data.