Research On Virtual Teaching Technology And Development Of Teaching And Training System Of Industrial Robots Based On Digital Twin

Industrial robot is an important carrier of intelligent manufacturing,which promotes the transformation of factories to digitization and intelligence.Also,the development of technology needs to match the corresponding talents.However,the traditional backward teaching mode is not enough to support the cultivation of talents.Aiming at the lack of digital auxiliary means in industrial robots education and training,this paper integrates the concept of digital twin,adopts the teaching and training mode of virtual reality integration,and studies the key technologies required for its system construction.The main work of this paper is as follows:(1)The simulation modeling technology of industrial robot unit based on digital twin is proposed,the module information of robot unit is analyzed and encapsulated,the geometric characteristics of virtual model are analyzed,the implementation mechanism of visual movement of model is explored,a fallback robot operation planning method with event as the core is proposed,and the technology is verified by a robot sorting example,It provides theoretical support for the virtual and real synchronization of subsequent data.(2)The virtual real synchronization technology of industrial robot based on digital twin is proposed,the event-variable mapping mechanism is introduced,the mutual mapping relationship between virtual and real data is established,and the basic framework of multi-source data communication of robot unit based on OPC UA is constructed.Driven by real-time data,the virtual and real data synchronization of robot unit is realized,Further,the technology is verified by the simulation example of USB flash disk production line.(3)The virtual teaching technology of multi-brand industrial robot is proposed,the intermediate programming language of industrial robot is designed,the mapping relationship between multi-brand robot and single programming language is constructed,the two-way conversion between multi-brand robot programming languages is studied,and verified by robot palletizing-training application,which realizes the reuse of resources and enriches the materials of the training system.(4)A digital twin training system for industrial robot is developed,which includes system support layer,data and core algorithm layer,logic function layer and interaction layer.Based on the concept of digital twin,two modes of off-line simulation and mechatronics are designed,integrated into diversified teaching resources,and verified by the application of W-8 training workstation.