Rotary table structure supported by air bearing

The invention discloses a rotary table structure supported by an air bearing, and aims to overcome the defects that in the rotating process of a rotary table, the friction force of a mechanical bearing is too large, the running fluctuation is too large, and rapid rotation and high-precision positioning of the rotary table are not facilitated. The motor comprises a base, a rotor assembly, a stator assembly and an air bearing sleeve with a porous structure inside, a rotating disc is connected to the rotor assembly, a mounting groove is formed in the base, the rotor assembly is mounted in the mounting groove, a gap is formed between the outer wall of the rotor assembly and the inner wall of the mounting groove, and the stator assembly is mounted on the base and corresponds to the rotor assembly. The air bearing sleeve is installed on the base, and the rotor assembly is movably arranged outside the air bearing sleeve in a sleeving mode. According to the rotary table structure supported by the air bearing, the rot