Swing type anti-deformation jig frame

The utility model relates to a swing type anti-deformation jig frame which comprises a bottom plate, the top of the bottom plate is fixedly connected with a lower support, the interior of the lower support is rotatably connected with a pin shaft, the outer surface of the pin shaft is fixedly connected with an upper support, the lower support is rotatably connected with the upper support through the pin shaft, and the top of the upper support is fixedly connected with a jig frame plate. According to the swing type anti-deformation jig frame, when a steel structural plate needs to be clamped and welded, two electric push rods are started to drive two clamping plates to move relatively, the steel structural plate is fixed in the jig frame plate, meanwhile, a motor is started to drive two threaded rods to rotate in two fixing blocks, and the steel structural plate is clamped and welded; according to the welding fixture, two threaded rods are arranged, so that two sleeves in threaded connection with the two thread