Face hobbing cutter system and indexable milling inserts for use in the same

摘要

The present invention provides a face hobbing cutter system and an indexable milling inserts for face hobbing spiral bevel gears. The system has a central axis and comprises at least one set of detachable cartridge assemblies, each set of cartridge assemblies including a plurality of cartridge assemblies, the respective cartridge assemblies being spaced apart along a rotational direction, each cartridge assembly being fixed in place in a pocket by a clamping device, each cartridge assembly including cartridges and indexable milling inserts, and each milling insert being retained on its respective cartridge by a retaining device. A part of the inserts of each set of cartridge assemblies are rhombic, tangential-mounted inserts for milling flanks of spiral bevel gear teeth, while the other inserts of each set of cartridge assemblies are grooving inserts, which are arranged transversely to the tangential-mounted inserts, for milling roots of spiral bevel gear teeth. The tangential-mounted inserts of each set of cartridge assemblies are provided in pairs, one being provided with its front facing the central axis, and the other being provided with its front facing away the central axis, so as to respectively mill concave curved flanks and convex curved flanks of the spiral bevel gear teeth.