Focuses on the digital modeling methods of the worm-wheel hob-cutter in double plane enveloping toroidal worm drive system
based on the coordinate transformation and the meshing principles
the hob basic worm tooth surface equations
cutting edge equations
flank face equations and worm-wheel tooth surface equations are derived.A modeling approach based on obtaining the data of worm hob axial section is found.Finally
the 3-D solid model of the hob-cutter is built by SolidWorks software.