METHOD FOR MANUFACTURING EXTRUDED HELICAL GEAR HAVING POSTPROCESS OF EXTRUDED HELICAL GEAR

摘要

The present invention relating to a jig for a post-process of a helical gear and a manufacturing device for a helical gear comprises an external jig (200) having a cylindrical body unit which has a hollow unit inside thereof; an internal jig (300) inserted into the hollow unit of the external jig for installation; and a holding member (400) penetrating the internal jig for installation. An external pressure unit (220) of which the inner circumference is tapered is formed on the external jig whereas a fastening unit (320) of which the outer circumference is tapered and having a plurality of cracks (G) in the longitudinal direction thereof to fix the gear material is formed on the internal jig. The holding member is fixed by penetrating the gear material.