Fixing tool

The invention provides a fixing tool which comprises a to-be-fixed object, a carrier and a limiting mechanism, the to-be-fixed object is sleeved with the carrier, and the limiting mechanism is connected with the to-be-fixed object and used for limiting the to-be-fixed object in the circumferential direction of the carrier. By arranging the limiting mechanism and enabling the limiting mechanism to be connected with the guide vane, the guide vane can be limited in the circumferential direction of the bevel gear, so that the guide vane can be fixed at a preset angle, the guide vane can be prevented from rotating relative to the bevel gear during drilling, the guide vane mounting precision is improved, and the service life of the guide vane is prolonged. And meanwhile, the consistent angles among the guide vanes in the guide vane regulator can be ensured, the working stability of the guide vane regulator is improved, and the flow control precision of the compressor is further improved. 本申请提供了一种固定工装，包括待固定物、载体和限位机构