Battery upper cover and aluminum shell detection device and working method thereof

The invention discloses a battery upper cover and aluminum shell detection device and a working method thereof, and belongs to the technical field of battery production. An aluminum shell limiting block and an aluminum shell limiting column are arranged on the front face of the back plate, the aluminum shell limiting column is connected with a baffle, a water inlet of the water pump is communicated with a water source, a water outlet is communicated with the water inlet end of the water injection pipeline, and the water outlet end of the water injection pipeline is a water injection opening matched with the liquid injection hole. The upper end of the handle is hinged to the upper end of a connecting block arranged in the handle, the lower end of the connecting block is hinged to the middle of an auxiliary block, one end of the auxiliary block is hinged to the mounting base, the other end of the auxiliary block is connected with a pressing block, and the pressing block is matched with a water injection opening