Infeed Grinding of Straight Conical Involute Gear

The greatest possibility of the conical involute gear is in the use of straight conical involute gears in place of bevel gears. However, the key for realizing this usage is to establish the method of grinding straight conical involute gears which have a comparatively large cone angle. In this study, three grinding methods to finish such a gear are developed : Niles-type infeed ginding, table sliding infeed grinding, and inclining work-arbor infeed grinding. The principles and the available machines are described, the test results are discussed, and it is concluded that the most practical method is table sliding infeed grinding.