Universal welding fixture for welding robot

The utility model discloses a universal welding fixture for a welding robot, relates to the technical field of fixtures, and aims to solve the problems that in the prior art, two plates cannot be respectively clamped and fixed, the angle of the two plates cannot be adjusted, the practicability is low, gas generated during welding cannot be adsorbed and purified, and the welding efficiency is high. In order to solve the problems that in the prior art, due to the fact that air drifts in the outside air, and environmental protection performance is poor, according to the scheme, the device comprises a mounting structure, and the mounting structure comprises an operation table and two side plates fixedly arranged on the outer walls of the two sides of the top of the operation table correspondingly; the clamping mechanism comprises a first supporting table, and the two ends of the first supporting table are fixedly arranged on the outer walls of the opposite sides of the two side plates correspondingly. Two plates