RESISTANCE WELDING DEVICE

WIPO Patent Application WO/2000/010767

A1

A resistance welding device, wherein, when a motor (30) installed on a column (28) of a resistance welding device (10) is rotated and a clutch part (35) of a clutch brake mechanism (32) is engaged, a cylindrical groove cam (54) is rotated and its rotating motion is converted to a linear motion by a follower (60), whereby a pressing mechanism (13) is lowered together with an upper welding electrode (12) and objects to be welded (146, 148) are held between a lower welding electrode (14) and the upper welding electrode (12), the upper resistance electrode (12) is displaced relative to a body (76) of the pressing mechanism (13) when the pressing mechanism (13) is displaced further, its pressing force (P) is detected by a strain gauge and, when the pressing force (P) becomes equal to a pressing force setting value (P¿1?), a welding current flows from a welding power supply (20) so as to weld the objects to be welded (146, 148).

TSUNODA NORIYUKI (JP)
NOGI YOSHIO (JP)
HAGIWARA KIYOKUNI (JP)
YOSHIDA SHIGERU (JP)

PCT/JP1999/004435

March 02, 2000

August 18, 1999

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SEIWA MANUFACTURING CO LTD (JP)
TSUNODA NORIYUKI (JP)
NOGI YOSHIO (JP)
HAGIWARA KIYOKUNI (JP)
YOSHIDA SHIGERU (JP)

B23K11/24; B23K11/11; B23K11/25; B23K11/31; (IPC1-7): B23K11/11; B23K11/24

JPH09285871A	1997-11-04
JPH1094882A	1998-04-14
JPH03118747A	1991-05-21
JPH0890251A	1996-04-09
JPH0623562A	1994-02-01
JPH08505088A	1996-06-04
JPH04274886A	1992-09-30
JPH0518775U	1993-03-09
JPH01284485A	1989-11-15
US4419558A	1983-12-06

Chiba, Yoshihiro (16th floor 1-1, Yoyogi 2-chome Shibuya-ku Tokyo, JP)

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