Ray detection device suitable for welding test piece

The utility model discloses a ray detection device suitable for welding test piece, which comprises a fixing device and a circumferential exposure ray machine, the fixing device comprises a moving device, a rotating device and a platform device, the rotating device comprises a rotating concave platform and a rotating device threaded rod, and the rotating device threaded rod is arranged at the bottom of the rotating concave platform; the platform device is provided with a circular platform, the circular platform is provided with a plurality of plate butt joint fixing devices and pipe butt joint fixing devices along the circumference, the middle of the circular platform is provided with an internal threaded hole, the rotating device is screwed into the internal threaded hole of the platform device through a threaded rod of the rotating device, and the whole circumferential exposure ray machine is placed on the rotating device. The circumferential exposure ray machine can be adjusted up and down through left-rig