Air floating inner supporting flexible positioning clamp for rotary station

The invention discloses an air floating inner supporting flexible positioning clamp for a rotary station, and belongs to the technical field of clamp equipment. According to the clamp, several floating heads are arranged at one end of the positioning clamp in an annular array mode and make contact with the inner wall of a clamped part, each floating head is divided into a first clamping area and a second clamping area in the axial direction of a clamping portion, the first clamping area or the second clamping area of the same floating head is in driving connection with a driving part, the first clamping areas or the second clamping areas connected with the driving part can do reciprocating motion in the radial direction of the clamping portion; and the first clamping area of one pneumatic floating head is connected with a driving part, and the second clamping areas of two floating heads adjacent to the pneumatic floating head are connected with driving parts. The air floating inner supporting flexible positio