MANUFACTURING METHOD OF BALL SCREW DEVICE, BALL SCREW DEVICE, FIXING PART OF BALL SCREW DEVICE, AND TOOL USED FOR MANUFACTURING BALL SCREW DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a ball screw device which can shorten a necessary time of the installation work of a dustproof component, the ball screw device, a fixing component of the ball screw device, and a tool used for manufacturing the ball screw device.;SOLUTION: In a manufacturing method of a ball screw device in which a plurality of penetration holes in which fixing members for fixing dustproof components are arranged are formed at nuts, and a plurality of recesses engaged with the fixing members are formed at external peripheral face sides of the dustproof components, the penetration holes are formed of large-diameter parts having diameters lager than diameters of the fixing members at external peripheral face sides of the nuts, small-diameter parts engaged with the fixing members at internal peripheral face sides of the nuts, and steps formed between the large-diameter parts and the small-diameter parts. In the manufacturing method, there are arranged a shank part and a blade part arranged at a tip of the shank part, the blade part has a diameter smaller than the shank part, the shank part is formed by forming the recesses by a drill having a diameter larger than the small-diameter parts and smaller than the large-diameter parts, and at the forming, the drill is inserted into the penetration hole up to a position at which the shank part abuts on the step of the penetration hole.;COPYRIGHT: (C)2015,JPO&INPIT