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Title:
BUTT WELDING CENTERING METHOD AND DEVICE
Document Type and Number:
Japanese Patent JP2015193023
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a butt welding centering method and device with a simple structure which can certainly perform centering even if workpieces have diameter difference.SOLUTION: When butt-welding a first workpiece 12a and a second workpiece 13a, the first workpiece 12a is held by a first parallel chuck 126a which has a pair of claws opposing in a diametrical direction of the first workpiece 12a while sandwiching the first workpiece 12a and capable of moving forward/backward in synchronism with each other in mutual directions, and the second workpiece 13a is held by a second parallel chuck 126b which has a pair of claws opposing in a diametrical direction of the second workpiece 13a while sandwiching the second workpiece 13a and capable of moving forward/backward in synchronism with each other in mutual directions, thereby making the first workpiece 12a and the second workpiece 13a coaxial.

Inventors:
HATTORI YUICHI
SUGIYAMA TATSURO
KOBAYASHI MASAZUMI
Application Number:
JP2014072026A
Publication Date:
November 05, 2015
Filing Date:
March 31, 2014
Export Citation:
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Assignee:
NTN CORP
International Classes:
B23K37/053; B23K15/00; B23K26/02; B23K26/21; F16D3/20
Domestic Patent References:
JPS6453771A1989-03-01
JPH05149473A1993-06-15
JPH01103678U1989-07-13
JPH0565975A1993-03-19
JP2013245806A2013-12-09
JPS6453771A1989-03-01
JPH05149473A1993-06-15
JPH01103678U1989-07-13
JPH0565975A1993-03-19
JP2013245806A2013-12-09
JPS61169178A1986-07-30
JP2003001490A2003-01-08
Attorney, Agent or Firm:
Kunihiko Shiromura
Kumano 剛
Yoshiyuki Shiraishi