Rail device of detecting a flaw

The utility model provides a rail device of detecting a flaw, includes two ultrasonic transducer, and its characterized in that still includes base and two probe mount pads, and two ultrasonic transducer install respectively on two probe mount pads, be equipped with the guide rail on the base, two probe mount pads are all installed on the guide rail, are equipped with on the base to drive the position control mechanism of two probe mount pads along guide rail synchronous motion. When the teaching draw case is in use, fix whole rail device of detecting a flaw on the rail through the base, its guide rail is on a parallel with rail length direction, through two probe mount pads of position control mechanism's drive along guide rail synchronous motion (moving the looks same distance along same orientation promptly), thereby make two ultrasonic transducer along guide rail synchronous motion, detect the rail in succession, it sweeps and looks into to can be used to to carry out full section to ...