Automatic conveying system suitable for multiple vehicle types

The utility model discloses an automatic conveying system suitable for multiple vehicle types. The system comprises a conveying frame composed of a vehicle receiving section and a vehicle falling section. The top of the conveying frame is horizontally provided with a sliding rail in the length direction, an inner portal framework and an outer portal framework are arranged in the conveying frame and are mutually sleeved, lifting mechanisms are disposed between the two side walls of the inner portal framework and the two side walls of the outer portal framework respectively, the top of the outer portal framework is provided with rollers connected with the sliding rail in a sliding mode, and the two sides of the bottom of the inner portal framework are symmetrically provided with vehicle body supports; the middles of the bottom ends of the left and the right side walls of the inner portal framework are symmetrically provided with motors, and motor shafts of the motors are in drive connection with the vehicle body supports; a speed reduction sensor and a stop sensor are arranged on the positions, on the vehicle receiving section and the vehicle falling section, of the conveying frame respectively. The automatic conveying system has the advantages that stop in different positions can be achieved, vehicle falling precision is guaranteed, opening and closing of small space can be achieved, and the situation that large space is occupied when a lifting arm of a traditional conveying mechanism is avoided.