Electric heating – Metal heating – For bonding with pressure
Patent
1991-11-18
1992-09-29
Evans, Geoffrey S.
Electric heating
Metal heating
For bonding with pressure
901 42, B23K 1136
Patent
active
051515709
ABSTRACT:
A revolute welding robot including a base table provided with a first electrode at one end and an upright column, a slide arm with its rear end supported movable in the longitudinal direction of the column and its front end horizontally extending to the first electrode side of a bed, slide arm drive means disposed between the column and the slide arm, a swing arm connected to the front end of the slide arm so that the rear end is swingable in a vertical plane, swing arm drive means disposed between the slide arm and the swing arm, an electrode bracket with its rear end connected to the front end of the swing arm and swingable in a vertical plane and having a second electrode provided at the front end and opposing the first electrode, electrode bracket drive means disposed between the slide arm and the electrode bracket, and electrode moving means disposed at least one of the bed side and the electrode bracket side so that the first and second electrodes withdrawably oppose each other.
The robot arm unit has increased degrees of freedom to be adapted to an increased number of car models and variations.
REFERENCES:
patent: 4855560 (1989-08-01), Sonoda et al.
patent: 5081337 (1992-01-01), Di Rosa
Evans Geoffrey S.
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
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