Welding apparatus and an operation method thereof

Details Welding apparatus and an operation method thereof Welding apparatus and an operation method thereof

1993-09-21

1995-04-11

Bradley, P. Austin

Metal fusion bonding

Process

With condition responsive, program, or timing control

228 8, 219 911, B23K 3702

Patent

active

054050758

ABSTRACT:
When a welding tip is moved from one welding point to a successive welding point, a robot and a welding gun are operated simultaneously with each other during a first time period between an issue of a pressurizing start signal and finish of the pressurizing, and again during a second time period between an issue of a depressurization signal and finish of the depressurization so that a pressurization time period t.sub.1 and a depressurization time period t.sub.2 are eliminated from a welding cycle time and the welding cycle time is shortened. A welding gun which includes a servo motor and a ball screw for converting a rotation of the servo motor to a stroke of the welding tip is used, and the stroke of the welding tip is counted as one axis of the robot, and the welding tip motion is controlled by a robot controller.

REFERENCES:
patent: 4678887 (1987-07-01), Nagel et al.
patent: 5221037 (1993-06-01), Terakado et al.
Heiss, H., "Grundlagen der Koordinatentransformation bei Industrierobotern", Robotersysteme, vol. 2, No. 2, 1986, pp. 65-71.
Patent Abstracts of Japan, vol. 010, No. 014, Jan. 1986, Toyota Jidosha K.K.

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