Lamp bead lens mounting precision detection device

The utility model discloses a lamp bead lens mounting precision detection device which comprises a detection table, a vertical plate is vertically installed at the edge of the top surface of the detection table, a top plate is arranged at the top end of the vertical plate, a magnifying lens is installed on the surface of the top plate, an installation groove is formed in the top surface of the detection table, and a conveying roller is installed in the installation groove. A marking pen is arranged on the surface of the vertical plate through a spring rope. According to the utility model, the detection table, the vertical plate, the top plate, the magnifying lens, the mounting groove and the conveying roller are matched for use, so that the surface-mounted lamp bead lens can be conveniently detected, the operation is simple, the visual observation of a worker is facilitated through the arrangement of the rear magnifying lens, the detection precision of lens surface mounting is improved, and the marking pen is