Welding, assembling and shell-entering integrated device for 2V-series super-large dense batteries

The invention relates to a welding, assembling and shell-entering integrated device for a 2V-series super-large dense battery, which comprises a rack in which a support frame is arranged; the shell entering assembly is arranged on the rack and located above the supporting frame; two pole groups are placed on the supporting plate, then the clamping piece is driven to clamp and fix the pole groups, welding operation is completed, after welding is completed, the driving piece drives the supporting plate to move, the supporting plate is pulled away from the bottoms of the pole groups, and in the pulling-away process of the supporting plate, the shell entering assembly and the jacking piece move in the approaching direction of the pole groups at the same time, so that the pole groups are clamped and fixed. The shell entering guide frame is placed at the opening part of the battery shell in advance so as to ensure that the shell entering assembly smoothly presses two groups of plate groups which are arranged in par