Finite Element Analysis And Topology Optimization For The Claming System Of High Precision Injection Machine

The claming system is a key bearing part of injection machine. Platens play the role offixing molds and guiding motion benchmark. stiffness structural parameters and mechanicalproperties of the claming system directly affect working stability of injection machine. Basedon the results of finite element analysis and weak links identification. the Fixed MoldingPlaten and Moveable Molding Platen were topology optimization by Solid IsotropicMicrostructures with Penalization. Base on artificial material topology theory and topologyoptimization criteria, all studies provide theoretical basis for stress state and structuraloptimization design of injection machine body.The analyzing method of the contact problems and engineering applications wereresearched by contact problem of nonlinear finite element method. The feasible plan wasproposed on claming Mechanism. Various parts of the solid model were established in PRO-Esoft, by means of finite element analysis and weak links identification provided theoreticalbasis for topology optimization design.The Fixed Molding Platen and Moveable Molding Platen were topology optimization bySolid Isotropic Microstructures with Penalization. Based on artificial material topology theoryand artificial material topology optimization criteria. Then topology optimization structurediagrams, response function, objective function and constrained boundary function wereestablished. The unit density distribution in the different constraint function and unit densitychange condition and convergence rate in the different discrete were discussed. The resultindicated that Molding Platen had a good stiffness and convergence rate with Volumefrac=0.8,Discrete=3, Objtol=0.001. High discrete in unit density eliminated the checkboard pattern.More reasonable distribution of material was obtained.The optimization result also that topology optimization model was correct and the settingof the selection of the design domain, the load, and the boundary constrain and the objectivefunction was reasonable from the optimization result. The purpose of lightweight structure isachieved. It can be seen from the topology optimization and Von Misses Contour that the maxstress was reduced by4.16%and the stress distribution was uniform. The mass of campingsystem reduced6.436T. The most reasonable distribution of material was obtained fromoptimization result. The camping system after Optimizating is an agreeable producttechnology qulification for not only improved the rigid of product design. but also of greatsignificance for Molding Platen innovative design.