| 摘要 |
<p>Fluorescent lamp reflectors consisting of two elongated side plates (2) and of a number of cross pieces (4) are normally made of a very thin, blank anodized aluminum plate material, the cross pieces being shaped and bent into a V-shape and fixed to the side plates by means of protruding lugs (30 and 32), which are stuck through slots in the side plates and bent out along the outer side of the plates. Traditionally this process is done manually, requiring great care. The invention provides a method by which the production may be effected in a rapid automatic manner, the cross pieces (4) being produced by an integrated operation and transferred to a holder gauge (24), whereafter side plates (2) leniently fetched from a storage (34) are moved so as to be mounted onto all of the lugs (30, 32) simultaneously, and thereafter all the lugs are bent out in one operation by means of a special lug folding tool (42). For receiving the lugs by moderate precision requirements, rather wide slots (26, 28) in the side plates are used, and the insertion of the side plates is carried out with the cross pieces (4) slightly compressed. The cross pieces are brought back to a correct cross sectional shape when the respective lugs (30, 32) are pressed out towards the ends of the slots (26, 28) in connection with the folding out of the lugs.</p> |
