MECHANISM FOR IMPROVED BIDIRECTIONAL ACCURATE ADJUSTMENT OF CUTTING PLATES CARTRIDGES IN PROCESSING CUTTING TOOLS

摘要

Cutting insert cartridge (20) for chip removing machining tools (10) has an axial adjustment system (50) threadedly engaged with a cartridge body (200) and a tool body (40). The axial adjustment system includes a differential screw (100) in threaded engagement with the tool body either directly, for example by threaded engagement with a threaded opening (510) in the tool body, or indirectly, for example by threaded engagement with a cross dowel fastener (150) slidably positioned in an opening (160) in the tool body. Actuation portion (106) positioned axially between threaded end portions (102, 104) of the differential screw has an engagement feature (120) on an outer surface to be driven, e.g., with a tool or by hand, to rotate the differential screw and adjust the axial position of the cartridge. The spaced apart relationship improves access to the actuation portion and engagement feature for rotation of the differential screw. Chip removing machining tools with such cartridges, methods of adjusting the position of the cartridge and cutting insert adjustment differential screws are also disclosed.