Curvature inspection device for aluminum coil stock

The utility model provides an aluminum material coil stock curvature inspection device which comprises a bottom plate, one side of the bottom plate is rotatably connected with a vertical plate, a plurality of scales are arranged above the bottom plate, and a support frame is fixedly connected above the bottom plate; a sliding rail is slidably connected to the upper portion of the supporting frame, an infrared gradienter is slidably connected to the lower portion of the sliding rail, a supporting plate is fixedly connected to one side of the bottom plate, an adjusting gear is rotatably connected to one side of the supporting plate, a rack is in transmission connection to one side of the adjusting gear, and one end of the rack is fixedly connected to the vertical plate. A vacuum pump is fixedly connected below the bottom plate, one end of the vacuum pump is fixedly connected with an air suction plate through a pipeline, the air suction plate is slidably connected to the inner side of a vertical plate, and a ven