Automatic tester for pressure during disconnection and burst of circular cell sealing board

The utility model relates to equipment for pressure testing, in particular to an automatic tester for pressure during disconnection and burst of a circular cell sealing board. The automatic tester comprises a cabinet. A testing part, a display and printing part, a water box bottom plate are arranged on the cabinet. The testing part comprises a bottom plate which is fixed on the upper side of the cabinet and side plates which are arranged on the bottom plate. A cylinder base is fixed at the upper ends of the side plates. A cylinder, a punch head and a first probe are fixedly arranged below the cylinder base, wherein the cylinder is connected with the punch head through a connecting block and the first probe is arranged on the lower side of the punch head. A bottom die which can be in contact with the punch head to form a closed space during testing is fixed on the upper side of the bottom plate in the testing part. A second probe is arranged in the cavity of the bottom die. The pressure when a welding spot bet