Device for machining artificial jewellery stone facets

摘要

The present invention relates to a device for machining artificial jewellery stone (8) facets, which device comprises a main pneumatic linear motor (1) with a brake (2) and attached to a machine (10) frame and a pneumatic linear motor (3) of micro-feed , which is coupled with said main pneumatic linear motor (1). Said micro-feed pneumatic linear motor (3) is coupled with a carrier (4) connected with an apparatus (7) carrying artificial jewellery stones (8) to be machined. An electronic metering device (6) is disposed on the carrier (4) In order to secure extreme positions of the feed, said carrier (4) is provided with an upper mechanical stop (11) and a bottom mechanical (12).