Welding seam welding quality detection device

The utility model relates to the technical field of detection devices, in particular to a weld joint welding quality detection device which comprises a bottom plate and an ultrasonic detector body, a top plate is fixedly connected to the bottom plate through two supporting plates, a first sliding groove is formed in the top plate, and a first sliding block is slidably connected into the first sliding groove; a first sliding groove is formed in the top plate, a first screw rod is rotationally connected into the first sliding groove and is in threaded connection with the first sliding block, one end of the first screw rod is fixedly connected with a rotating shaft, one end of the rotating shaft penetrates through the top plate and extends to the outside, an electric push rod is mounted on the first sliding block, and the ultrasonic detector body is fixedly connected to the output end of the electric push rod. And a second sliding groove is formed in the bottom plate, two second sliding blocks are slidably conne