Ultrasonic flaw detection equipment and method for multi-union guide vane of engine

The invention belongs to the technical field of guide vane detection, and particularly relates to engine multi-union guide vane ultrasonic flaw detection equipment and method.The engine multi-union guide vane ultrasonic flaw detection equipment comprises a machine body, and the machine body comprises a detection box; the movable frame is arranged and matched with the sealing assembly, so that a gap between the bottom of the movable frame and the surface of the guide blade is reduced, a coupling agent is prevented from flowing out of the bottom of the movable frame, meanwhile, the coupling agent forms a layer of coupling area in the movable frame, the contact effect between a probe and the guide blade is improved, and the flaw detection accuracy is improved; moreover, before the coupling agent is smeared, the cleaning plate cleans the surface of the guide blade, so that the coupling agent is prevented from being polluted by impurities on the guide blade, the purity degree of the coupling agent is improved, the