Side frame positioning mechanism and turntable conveying device

The utility model discloses a side frame locating mechanism and a rotary table conveying device, the side frame locating mechanism comprises a bearing seat, a swing arm locating mechanism and a plurality of pressing air cylinders, the bearing seat is in a hollow seat body shape, the top end of the bearing seat forms a bearing face used for bearing the bottom of a side frame, and the swing arm locating mechanism is arranged on the bearing face. The bearing face is provided with a limiting blocking fence used for limiting an ejector rod of a borne side frame and the outer side of the side rod, the swing arm positioning mechanism comprises three sets of swing arm units, one swing arm unit is arranged at the end, bearing the ejector rod of the side frame, of the bearing base and used for positioning the inner side of the ejector rod of the side frame, and the other swing arm unit is arranged at the end, bearing the ejector rod of the side frame, of the bearing base. The other two sets of swing arm units are oppos