Diaphragm mounting device for lithium ion battery lamination production

The utility model discloses a diaphragm mounting device for lithium ion battery lamination production, and belongs to the technical field of battery production. A supporting frame is arranged on the bottom plate. A hydraulic cylinder body and a lifting fixing plate are fixed on a support frame, a hydraulic cylinder piston rod is connected with a fixing shaft, two ends of the fixing shaft are rotatably connected with a chain wheel, the chain wheel is meshed with a chain, one end of the chain is connected with the lifting fixing plate, and the other end of the chain is connected with a lifting plate. A cylinder body is in sliding connection with the supporting frame, a cylinder piston rod is fixedly connected with the middle of the auxiliary plate, the two sides of the front end of the auxiliary plate are fixedly connected with the rear ends of the corresponding push rods respectively, the front ends of the two push rods penetrate through the lifting plate in a sliding mode and then are fixedly connected with t