Welding tool for automobile post-treatment rear elimination assembly

The invention discloses an automobile post-treatment rear elimination assembly welding tool which comprises a base, tail pipe positioning mechanisms are installed at the symmetrical positions of the two sides of the base, four profiling supporting block mechanisms and a rear elimination package self-positioning mechanism are installed at the top of the base, lifting hook positioning mechanisms are installed at the two ends of one side of the base, and a T-shaped supporting plate is fixedly installed in the middle of one side of the base. And one side of the T-shaped supporting plate is connected with a side hole positioning mechanism through a rear bale breaking and pressing mechanism. According to the implementation mode, through mutual cooperation of the first clamping plate and the second clamping plate which are installed on the arranged rear bag breaking self-positioning mechanism, clamping of the rear bag breaking part is facilitated, meanwhile, through clamping of the first electric air cylinder, the p