The extended cycloidal bevel gear hobbing machine uses an extended cycloidal bevel gear milling cutter, or a double-body combined face milling cutter disc, and a continuous indexing tooth cutting machine tool according to the expansion method. When cutting the teeth, the workpiece of the rocking table milling cutter head is in continuous rotation motion, and the rocking table is processed by the feed movement at the same time, and the workpiece rocking table is reciprocated once. The continuous rotation of the workpiece of the milling cutter disc enables the workpiece to obtain a certain number of teeth and continuous indexing, and forms a tooth length curve. The additional motion of the rotating workpiece of the rocking table is combined to produce an unfolding motion that allows the workpiece to obtain a tooth profile.
Quasi-involute bevel gear hobbing machine with taper hob, according to the expansion method of continuous indexing tooth cutting machine. When cutting teeth, the taper hob cutter first cuts at the large end, and then cuts at one end with its smaller diameter, in order to ensure that the cutting speed of the whole cutting process is consistent, the machine tool controls the hob speed by the stepless speed changer when cutting the teeth, the rocking table and the hob workpiece are all in continuous rotational motion, and a workpiece is processed, and the rocking table reciprocates once. The rotation of the workpiece of the rocking table generates an expansion motion through the differential mechanism, so that the workpiece obtains a contour curve along the tooth length.
The supporting equipment of the bevel gear hobbing machine includes grinding milling cutter, broach head, cutter edge grinding machine, equipped with a pair of bevel gear grinding machine, checking the meshing contact of paired bevel gears, bevel gear rolling inspection machine, preventing tooth heat treatment, deformation, quenching press, etc.