VORRICHTUNG ZUR BEARBEITUNG DES RANDES EINES BRILLENGLASES MIT EINEM SENKRECHT VERSCHIEBBAREN LINSENHALTER

摘要

To suppress the increase in the production cost while the time for converting the data of the shape of the lens frame into the data necessary for the processing is decreased. In the apparatus, a holding shaft 41 in a lens unit 4 which can be freely displaced in the vertical direction while a lens 1 is rotated is disposed on the vertical line of a main shaft 51 of a main rotating tool 50. The apparatus has an elevating and lowering unit 3 which can support the lens unit 4 in the vertical direction. The elevating and lowering unit 3 is lowered while the lens unit 4 is supported. After the lens 1 is brought into contact with the main rotating tool 50, the elevating and lowering unit 3 is separated from the lens unit 4 and lowered to a position in the vertical direction decided based on the data of the shape of the lens frame. The processing amount is decided by this position. The processing pressure decided in accordance with the weight of the lens-holding unit is applied to the lens 1 and the processing is conducted.