Patent ID: 7698816
Filing Date: 2010-04-20
Classification: B23F,Y10T

Abstract:
1. A method of making a new pinion for use with a given face gear set that includes a face gear and an original pinion that meshes with the face gear, the method comprising: theoretically rotating an axis of the original pinion about an axis of the face gear, while keeping the face gear fixed, to a reference position where a meshing area of the given face gear set and a meshing area of the face gear with the new pinion substantially coincide; defining a taper angle of the new pinion such that a projection of a blank of the new pinion along a circumferential direction of the face gear is substantially the same as a projection of the original pinion blank along the circumferential direction of the face gear; positioning a cutting plane of a cutting tool at the reference position; and moving the cutting plane to maintain theoretical tangency contact between the cutting plane and the original pinion while the original pinion undergoes a two-parameter rotation, while the new pinion is rotated about its own axis, while the face gear is rotated about its own axis, and while the cutting plane undergoes compound rotation and translation to form the new pinion.