Research On Simulation And Optimization Of Gas Water Heater Sheet Metal Production Line Based On Digital Factory

With the continuous expansion of our domestic demand market,the home appliance industry has also begun to develop rapidly.In particular,under the leadership of the national gas-to-gas transmission and coal-to-gas policies,the gas water heater industry is also facing very severe competition.However,the traditional production line is not highly intelligent,which not only restricts the production efficiency of the production line,but also leads to a higher failure rate,which greatly restricts the development of gas water heater enterprises.Therefore,this article proposes a sheet metal automated production line for gas water heaters based on digital factories to help companies stand out in the fierce competition.With Germany's "Industry 4.0" and China's "Made in China 2025" policy,various manufacturing companies are facing opportunities and challenges for industrial upgrading.Therefore,the related research of the automated production line based on digital factory is of great significance.First of all,this paper expounds the relevant theories in the application of digital factories,and comprehensively demonstrates the advantages and design requirements of gas water heater digital factories.Introduced the virtual simulation software DELMIA to realize the resource allocation and simulation of the automated production line.And on this basis,the process flow of the automatic production line of gas water heater was analyzed,combined with the actual situation of the enterprise plant,the layout design of the automatic stamping and welding production line of gas water heater sheet metal was completed.At the same time,the modular design and analysis of the automatic production of sheet metal for gas water heaters mainly include: multi-station stamping modules,upper and lower rack welding modules,top and bottom plate assembly modules,and top and bottom plate welding modules.Secondly,according to the specific composition of the automated production line,a six-degree-of-freedom industrial robot with greater influence on the production line was selected for kinematic analysis.Taking the assembly robot as an example,a standard D-H parameter method was used to establish the robot kinematics model.According to the principle of homogeneous transformation matrix,the robot is kinematically solved and verified in MATLAB.In addition,the general method of robot motion trajectory planning is introduced,and MATLAB is used for simulation and verification.Combined with DELMIA software to simulate the robot,the robot interference detection and off-line programming in DELMIA are introduced.Finally,based on the virtual simulation software DELMIA,a three-dimensional model of the automatic production line is established and the simulation process is analyzed.Based on the analysis of the main equipment movements,with the production line balance rate as the goal,the layout optimization and the robot trajectory optimization methods that have a greater impact on the production line are adopted respectively,which improves the production efficiency and equipment utilization.