Virtual Machining System of Reflow Welding Machine Based on Digital Twin

This paper designs a virtual control system of reflow soldering based on digital twin and neural network. Aiming at the problems of high cost and low efficiency in production prediction of reflow soldering machine, low transparency and lack of model in operation management, this paper builds a virtual control system of reflow soldering based on neural network and digital twin technology using unity 3D, which can effectively solve these problems. Firstly, 3D virtual modeling of reflow soldering is carried out by using digital twin technology to realize the data mapping relationship between reflow soldering machine and virtual model. Then a neural network model of reflow soldering is constructed to predict the production temperature curve of reflow soldering machine. Finally, the neural network model is applied to the virtual control system of reflow soldering to realize the overall system development. The system can monitor the real-time production parameters in three-dimensional dynamic form and predict the welding temperature curve, which is of great significance to the intelligent reflow welding process of the enterprise.