Sealing head welding and positioning tool

The utility model relates to an end socket welding positioning tool which comprises a positioning disc, an air inlet pipe and at least one positioning column. A spigot for fixing the sealing head is formed in the outer edge of the positioning disc, and an air inlet hole is formed in the positioning disc; one end of the air inlet pipe is fixed on the positioning disc and is communicated with the air inlet, and shielding gas is introduced through the air inlet pipe; at least one positioning column is arranged on the positioning disc, and the end socket is positioned through the positioning column when the end socket is installed. The utility model provides an end socket welding and positioning tool which solves the problems that when an existing end socket is welded, positioning is not accurate, and deformation is prone to occurring in the welding process. 本实用新型涉及一种封头焊接定位工装，包括定位盘、进气管及至少一个定位柱；定位盘的外缘开设有固定封头的止口，定位盘上开设有进气孔；进气管一端固定于定位盘，且与进气孔连通，通过进气管通入保护气；至少一个定位柱装设于定位盘上，安装封头时通过定位柱对封头进行定位。本实用新型提供了一种封头焊接定位工装，解决了现有封头焊接时