Welding fixture system of battery cell shell explosion-proof valve

The invention relates to the technical field of machining of battery cell structural parts, in particular to a welding fixture system for an explosion-proof valve of a battery cell shell, comprising: a positioning bolt for sleeving a battery cell shell; the pressing structure is arranged on the side of the positioning bolt, and the pressing structure is used for pressing and fixing the battery cell shell and the positioning bolt; and the fixing structure is used for fixing the anti-explosion valve on the welding position of the battery cell shell. And the battery cell shell is directly sleeved on the positioning bolt during feeding, so that the feeding operation is very simple and convenient. During welding, the pressing structure presses the battery cell shell on the positioning bolt, and the fixing structure fixes the explosion-proof valve on the welding position of the battery cell shell, so that relative fixation and accurate positioning of the positions of the battery cell shell and the explosion-proof v