Seam tracking device for an industrial robot

Details Seam tracking device for an industrial robot Seam tracking device for an industrial robot

1987-08-21

1988-12-27

Shaw, Clifford C.

Electric heating

Metal heating

By arc

21913001, 901 42, B23K 912

Patent

active

047942231

ABSTRACT:
A weld seam tracker for a welding robot has an optical sensor (4) for sensing the position of the seam and controlling the movement of a welding torch (10). The sensor (4) includes a light source, for example a laser, and a position-sensing detector. The sensor (4) is rotatably mounted at a housing (1) mounted on the robot hand (3) and is operated by a motor (6) arranged in the housing (1). A heat shield (40) with a window (42, 43) for the scanning light protects the sensor (4) against spatter and heat radiation. The welding torch (10) is mounted in a through-hole in the housing (1) and is surrounded by the sensor (4). Compressed air for cooling the sensor (4) is conducted to said sensor (4) via a gas-tight space (23) in the housing (1). Part of the cooling air is led out through a sleeve-formed screen (46) at the window (42, 43) of the heat shield ( 40), whereby fumes etc. are blown away from the visibility range located nearest the window.

REFERENCES:
patent: 4501950 (1985-02-01), Richardson

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