Cabinet frame welding clamp for robot automatic welding

The invention relates to the technical field of robot welding fixture design, in particular to a cabinet frame welding fixture for robot automatic welding, which comprises a cabinet type frame, four first limiting blocks are arranged on the upper surface of the cabinet type frame, the first limiting blocks are divided into two groups, one group comprises two first limiting blocks, and the other group comprises two second limiting blocks. First sliding rails are fixedly connected between the first limiting blocks, the number of the first sliding rails is two, sliding rods 4 are slidably connected to the surfaces of the first sliding rails, and the two first sliding rails are connected through the sliding rods 4. By arranging the lifting mechanism, accurate positioning in the upper direction and the lower direction can be provided for the auxiliary clamp, a sixth motor drives a second worm to rotate through a second coupler, the second worm drives a fourth gear to rotate, and the fourth gear rolls on a fourth r