Performance Modeling And Study Of No Rivet Stamping Connection Machine Gas-liquid Force Increasing System

No rivet stamping connection is one kind of press connection technique, which usescold deformation capacity of the plate member to join them together. It has a highintensity, high efficiency, low cost, and adapts to automation production characteristics, iswidely used in Germany, Japan and other developed country. The gas-liquid forceincreasing system is the core component of the no rivet stamping connection machine,which has some advantage such as soft reaching and adaptive force increasing, itsperformance will directly affect the quality of the connection point of stamping, and musthave a good stability and dynamic performance. Domestic research in this technology isstill in its infancy. The main task of this article is studying the gas-liquid force increasingsystem of the no rivet stamping connection machine by the method of modeling andsimulation, details are shown as follows:First, describe the significance of the study of no riveting stamping connectiontechnology, and then describe the development of pneumatic modeling and simulationtechnology, sliding mode control technology and fuzzy control technology.Then, explain the working process of gas-liquid force increasing system and analysisthe cylinder pressure flow equations, differential equations of cylinder pressure, theworking piston force balance equation, the proportion valve pressure flow equation, andderive and simplify the transfer function of the gas-liquid force increasing system.Finally, design fuzzy sliding mode control strategy for the gas-liquid forceincreasing system on the basis of principle of the sliding mode control and fuzzy controltechnology, and use it to study the dynamic characteristics of the electromechanicalco-simulation model of the system in two working conditions to verify the effect of thecontrol method.Overall, this article creates a mathematical model and electromechanicalco-simulation model of the gas-liquid force increasing system, and uses fuzzy slidingmode control technology to study its working process. It has a certain significance inpromoting the intelligent process of China’s equipment manufacturing industry.