Verfahren und Vorrichtung zur Erzeugung eines Gegenstandes aus einem Rohling.

摘要

The invention makes it possible to produce from a blank an article whose contour is altered, preferably linearly enlarged, with great precision in relation to a corresponding contour of a used model (1c). A copying machine is used in the production. The machine comprises, on the one hand, a first pair of units (1, 2) which are arranged so as to be rotatable. The model (1c) is arranged on the first unit (1) and the blank is arranged on the second unit (2). The machine also comprises a pair of second units (24, 25) in which one supports a detecting member (24a) which is brought into cooperation with the model, and the second unit supports a machining or actuating member which is brought into cooperation with and acts on the blank. The said pairs of units are displaced from and towards each other during production. In each pair of units, the units are also controlled individually so that the one unit executes second displacement movements relative to the other unit in such a way that the desired alteration is obtained.