Research on the virtual simulation system of intelligent manufacturing production line teaching based on digital twin

With the continuous improvement of science and technology and education level, new technology and new directions are gradually integrated into the course teaching practice. The teaching virtual simulation system of the wheel hub intelligent manufacturing production line studied in this project, combined with the existing production line conditions of the school and the cooperative enterprises, used NX MCD to build the production line simulation model and signal mapping, and successfully built the virtual prototype. PLC control program and HMI design were completed in TIA process, and data exchange between virtual prototype and hardware PLC was realized through OPC UA communication, so as to realize virtual and real collaborative operation. The experimental results show that the virtual model is completely consistent with the hardware device, and can be synchronized in real time. Through the introduction of digital twin virtual simulation technology, this project provides significant support and positive results for the teaching of intelligent manufacturing production line technology course.