CUTTING-DEFORMING OF GEAR TEETH Russian patent published in 2014 - IPC B21H5/02 B24B39/04 

FIELD: process engineering.

SUBSTANCE: invention relates to metal cutting, particularly, to finishing of gear teeth. Finishing if performed by three rollers running on appropriate fixed axles: two cutting rollers and one gagging roller. At finishing start, gear is brought in engagement with cutting rollers. The latter are tangentially fed relative to gear axis at appropriate feed rate. Allowance is cut from tooth lateral surfaces due to transverse slip of roller tooth side surface relative to hear tooth side surface. Then, cutting rollers are disengaged from gear for it to engage with gagging roller. Gear teeth side surfaces are burnished by radial feed of gagging roller relative to gear. To decreased the influence of cutting roller slip on gear tooth profile distortion in rolling, pitch point of one cutting roller is located at the section of double-tooth contact zone nearby gear tooth tip. Pitch point of the other cutting roller is located at the section of double-tooth contact zone nearby gear tooth root. Pitch point of gagging roller is located between pitch points of cutting rollers.

EFFECT: higher correcting ability and accuracy finishing of gears.

6 cl, 9 dwg