Terminal welding method

The invention provides a terminal welding method, which belongs to the technical field of lead-acid storage batteries and comprises the following steps: S1, a conical through hole is formed in a storage battery lead tube, and the outer side surface of a terminal post is positioned on a conical surface matched with the conical through hole; s2, the storage battery cover is installed on the storage battery groove, and the end pole is installed in the conical through hole from bottom to top; s3, the terminal welding machine is started, the terminal mold vertically descends, and the storage battery lead pipe and the terminal post enter the terminal mold; the terminal welding machine generates flames and heats the carbon rod, the carbon rod enters the terminal mold to make contact with the top of the terminal pole, the flames are jetted to the storage battery lead pipe and the terminal pole, and the tops of the storage battery lead pipe and the terminal pole are melted to form liquid lead; and S4, the carbon rod i