Title:
等速自在継手の外側継手部材の製造方法および外側継手部材
Document Type and Number:
Japanese Patent JP6385730
Kind Code:
B2
Abstract:
Provided is a method of manufacturing an outer joint member of a constant velocity universal joint, which is constructed by forming, through use of separate members, a cup section having track grooves formed at an inner periphery of the cup section and engageable with torque transmitting elements, and a shaft section formed at a bottom portion of the cup section, and by welding a cup member forming the cup section and a shaft member forming the shaft section, the method including: forming the cup member and the shaft member of medium carbon steel, the cup member being manufactured by preparing a cup member having a cylindrical portion and a bottom portion being integrally formed, and a fitting hole formed in a thick portion of the bottom portion in a machining step, the shaft member being manufactured by preparing a shaft member having a fitting outer surface formed at an end portion of the shaft member to be joined to the bottom portion of the cup member, which is formed in a machining step; fitting the fitting hole of the cup member to the fitting outer surface of the shaft member; and welding the cup member and the shaft member by radiating a beam from an inner side of the cup member to a fitted portion between the cup member and the shaft member, in which the fitting hole of the cup member and the fitting outer surface of the shaft member are formed of a joining portion having a gap and a press-fitting portion having an interference, and an axial dimension of the joining portion is set to be larger than an axial dimension of the press-fitting portion, the joining portion serving as a press-fitting guide.
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Inventors:
Naoki Nakagawa
Shintaro Suzuki
Shintaro Suzuki
Application Number:
JP2014124329A
Publication Date:
September 05, 2018
Filing Date:
June 17, 2014
Export Citation:
Assignee:
ntn corporation
International Classes:
F16D3/20; B23K15/00
Domestic Patent References:
| JP2012229714A | ||||
| JP2011167746A | ||||
| JP2011226589A | ||||
| JP2011106566A | ||||
| JP2014119096A |
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Tsuyoshi Kumano