数值研究活塞杆结构对二板式注塑机合模系统形变和应力的影响

In order to optimize the stress uniformity and stability in the current clamping system of two-platen injection molding machine, the structure of the piston rod was modified in this paper. Numerical simulation has been done to investigate the effects of rod structure on the clamping performance. The changes of the deformation and stress in two clamping systems at three clamping forces were numerically simulated by Ansys Workbench. The results showed that the modified structure of the piston rod can significantly reduce the deformation of the components and the stress in moving plate, the stress in the oil cylinder and piston rod was reduced little, but the stress in the piston was increased a little.