Switching device for calibration fixtures for automobile air conditioner controller

The utility model discloses a rapid switching device for calibration fixtures for an automobile air conditioner controller. The rapid switching device comprises calibration fixtures, a rotating disc, a hollow rotating axle mechanism, a push-pull quick clamp, a positioning block, positioning stoppers and a calibration stand. The calibration fixtures are put on the rotating disc and are fixed back to back in the direction of 180 degrees, the rotating disc is fixed on the calibration stand through the hollow rotating axle mechanism, two positioning conical holes are formed on the end surface of the rotating disc, an included angle of 45 degrees is formed between the connecting lines of the two positioning conical holes and the two calibration fixtures, the push-pull quick clamp is put on one side of the calibration stand, the positioning block is fixed on the back side of the rotating disc, the number of the positioning stoppers is two, the two positioning stoppers are fixed on the calibration stand, and an incl