CNC Machining Simulation Modeling and Achieving Technology of Spiral Bevel Gear

The tooth profile surface equation of spiral bevel gear machined by the half-generating method is derived from the gear meshing principle and the cutting tooth principle,based on the position relation of the machine tool,the cutting tool and the worked workpiece in cutting tooth process.On the basis of the specific parameters of a spiral bevel gear,the three-dimensional solid model of the spiral bevel gear is set up by CATIA surface modeling method,and the effectiveness of this method has been demonstrated.