Detection device for steel sheet machining

The utility model relates to the technical field of steel sheet processing, in particular to a detection device for steel sheet processing, which comprises a box body and a fixing box, a fixing device is arranged in the box body, the fixing device comprises a motor and a threaded rod, the motor is fixedly connected with the inner surface of the box body through a support, and the threaded rod is fixedly connected with the box body. According to the detection device for steel sheet machining, through cooperation of the pressing device and the fixing device, the output shaft of the motor rotates to drive the threaded rod to rotate, so that the threaded rod can drive a threaded block to move, the threaded block can drive a rotating rod to rotate, and the rotating rod is driven to rotate; the rotating rod can pull the frame body to move downwards, the frame body can press and clamp the steel sheet, the steel sheet can be stabilized, the steel sheet is pressed and fixed through multiple sets of structures such as