Raw sheet glass surface flatness detection device

The utility model relates to the technical field of glass detection, and discloses a raw sheet glass surface flatness detection device, which comprises a detection instrument, the inner wall of the lower end of the detection instrument is fixedly connected with a base, the upper surface of the base is provided with a placing groove, the inner wall of the placing groove is provided with a fixing assembly, and the fixing assembly comprises a round rod. The round rod is slidably connected to the left end of the inner wall of the containing groove in a penetrating mode, a clamping block is fixedly connected to the right surface of the round rod, a rectangular groove is formed in the right surface of the clamping block, a rotating rod is rotatably connected to the inner wall of the rectangular groove, and a roller is fixedly connected to the outer wall of the rotating rod. According to the utility model, through the arrangement of the placing groove, the original glass can be fixed and straightened, the detection