Device for visually measuring size of part

The utility model discloses a device for visually measuring the size of a part, which comprises a base, a point light source, a lens, a placing platform, a screen and a camera, racks are arranged on the upper surfaces of the two sides of the base, a sliding chute is arranged in the middle of the base, a plurality of sliding blocks are arranged in the sliding chute, and the point light source is arranged in the sliding chute. Two supporting plates are fixedly installed on the edges of the two sides of the base, a limiting plate is fixedly installed on the upper surface of each supporting plate, and a sealing cover is movably installed on the upper surface of each limiting plate. According to the utility model, the motor, the camera and the computer are arranged, so that a plurality of surfaces of the product to be measured can be measured conveniently, dimension parameters of the product can be measured quickly and accurately, workers do not need to rotate the product manually, and the operation is simple and