Bevel gear cutting device

A bevel gear cutting device comprising a stationary machine base, a support shaft extending uprightly from said machine base, a table support member mounted at one end on said support shaft for rotation about the axis of the shaft and adjustable with respect to said machine base in alignment with the generatrix of a bevel gear blank, a holding table adjustably supported on said table support member having a rotor, a gear blank rotating and rocking mechanism support member mounted at one end on said support shaft for rotation about the axis of the shaft, a gear blank rotating mechanism slidably supported on said gear blank rotating and rocking mechanism support member and having a rotary gear blank holding member at the leading end, a gear blank rocking mechanism slidably supported on said gear blank rotating and rocking mechanism support member, a main shaft extending through said gear blank rotating mechanism and keyed to said gear blank rocking mechanism, means to rotate said gear blank rocking mechanism at a rate greater than the rotational rate of said main shaft by the number of teeth to be formed on said gear blank and including a cam plate cooperable with said rotor, adjustment means acting on said gear blank rotating mechanism to position the virtual apex of the cone shape of said gear blank on an extension of the axis of said support shaft, means for biasing said cam plate towards said rotor on the holding table, and a high speed cutter movable along the generatrix of said gear blank cone at a low speed in the same plane as the rocking plane of the axis of the cone shape of said gear blank so as to reciprocally move the cutting edge of the cutter between a position just above the conical surface of the gear blank to the deddendum to thereby cut teeth on the gear blank in conformity with the leading curved face of said cam plate.