Title:
【発明の名称】電縫管溶接管理方法およびその装置
Document Type and Number:
Japanese Patent JP2803386
Kind Code:
B2
Abstract:
A welding management apparatus for use with a tube production machine adapted to form a workpiece fed from a roll of metal strip in a tubular formation having side surfaces opposite to each other, provide an upsetting pressure to butt the opposite side surfaces of the workpiece at a jointing point, and supply a high frequency power to the workpiece to weld the opposite side surfaces at a welding point so as to produce a metal tube. The welding management apparatus comprises a camera positioned to have a visual field including the jointing and welding points for producing a video signal indicative of an image of the visual field. The video signal is converted into a luminance distribution pattern used in controlling the high frequency power to the workpiece.
Inventors:
Yuji Ishizaka
Application Number:
JP8391791A
Publication Date:
September 24, 1998
Filing Date:
April 16, 1991
Export Citation:
Assignee:
KABUSHIKI KAISHA MEIDENSHA
International Classes:
B23K13/00; B23K11/24; B23K13/02; B23K13/08; G06F9/00; G06F19/00; G06T1/00; (IPC1-7): B23K13/08
Attorney, Agent or Firm:
Fujiya Shiga (1 person outside)