Plastic tank positioning and manufacturing device

The utility model discloses a plastic tank positioning and manufacturing device which comprises an outer size positioning tool and an inner size positioning tool which are independent of each other. The external dimension positioning tool comprises an air cylinder control system, a moving rod and a fixing frame, the moving rod is arranged in the fixing frame, the air cylinder control system comprises a control box, an air source, a pipeline and an air cylinder, the air cylinder is fixed to the fixing frame, and the moving rod is connected with a piston of the air cylinder; the inner size positioning tool comprises a fixing rod and an adjusting rod, adjusting grooves are formed in the two ends of the fixing rod, and the adjusting rod is connected into the adjusting grooves in a sleeved mode. Through inner and outer size limitation and rapid positioning, the number of auxiliary personnel in the plastic tank manufacturing process can be reduced, and the plate positioning size stability is improved; the device is