① A calculation method for cutting adjustment of spiral bevel gear face hobbing is proposed. This method can arbitrarily specify the position of contact reference point on the tooth surface according to the use needs, and can accurately control the contact state of both sides of spiral bevel gear teeth at the same time. The specific implementation process of this contact characteristic control method is given, and the detailed calculation formulas of the adjustment parameters and cutter head parameters of the gear cutting machine with large and small wheels based on this method are deduced.
② The calculation method of internal excitation of spiral bevel gear meshing based on contact finite element method is studied; Taking the internal excitation of spiral bevel gear meshing as the control objective, the internal excitation amplitude of spiral bevel gear meshing is reduced by optimizing the tooth contact state, so as to reduce the vibration and noise of spiral bevel gear transmission.
③ A direct solution method of tool position for face hobbing of full NC gear milling machine is proposed. This method takes the axis direction of the cutter head as the goal to change the attitude of the whole machine tool without solving complex nonlinear equations. This paper studies the machine tool motion control method of spiral bevel gear face hobbing on Siemens 840dsl CNC system, which separates the tooth splitting motion and tooth shape into motion, which makes it easier to switch the machining methods of face milling and face hobbing on the same machine tool and programming on the machine.