Ultrasonic flaw detection raw material selecting structure of thread rolling machine

The utility model relates to the technical field of ultrasonic flaw detection of thread rolling machines, in particular to an ultrasonic flaw detection raw material selecting structure of a thread rolling machine, which comprises two long plates, a conveying belt is installed between the two long plates, the top ends of the two long plates are jointly connected with an ultrasonic flaw detector, a first vertical plate and a second vertical plate are slidably installed on the two long plates in an embedded mode and attached to the ultrasonic flaw detector respectively, the top ends of the first vertical plate and the second vertical plate are jointly connected with an L-shaped column, and raw materials are conveyed by the conveying belt; when the raw materials go wrong, the conveying belt stops transmission, a servo motor drives a threaded rod to rotate, a long column drives an L-shaped column to move, unqualified raw materials are pushed to a second vertical plate through a first vertical plate, and the unqual