APPEARANCE INSPECTION DEVICE FOR SOLDERED JOINT PART

摘要

PURPOSE:To evaluate the shape of the soldered joint part quantitatively and not subjectively, but objectively by an operator by inputting three-dimensional information on the soldered joint part. CONSTITUTION:The soldered joint part 5-3 of a printed board assembly 5 which is irradiated with a halogen lamp 11 is observed through a CCD camera 12 to projected contour lines on the joint part 5-3 through a reference grating 13 with the irradiation light of the lamp 11. At this time, the lamp 11 and camera 12 are arranged at the same distance from the joint part 5-3, the grating 13 is interposed between them, and the contour lines drawn on the joint part 5-3 are read to judge the shape of the joint part 5-3.