JPS6488686A - Deficient parts inspecting device for packaged parts - Google Patents

Abstract

PURPOSE:To rapidly and correctly inspect deficient parts by photographing a mark projected on a printed board unit and deciding the presence and the absence of mounting packaged parts according to the position, the form and the area of the mark on a monitor screen. CONSTITUTION:The mark 13a of a specific form is diagonally photographed from a mark projector 13 at a position where the packaged parts 1-2 is mounted and when the packaged parts 1-2 are not present at the projected position, the monitor screen 14a on which the mark 13a of the correct form is detected at a prescribed position is formed on the photographing means 14 such as a television camera. However, when the packaged parts 1-2. LSi, for instance, is present, the position of the mark 13a is dislocated by a part corresponding to the height thereof, and in case of the cylindrical packaged parts 1-2, the monitor screen 14a on which the mark 13a is deformed is formed, so that the presence and the absence of the packaged parts can be decided according to the position and the form of the mark 13a. Thereby, the deficient parts of the packaged parts can be rapidly and correctly inspected.