Seam tracking device for an industrial robot

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4794223
SERIAL NO

07087819

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
ASEA AKTIEBOLAG VASTERAS SWEDEN A SWEDISH CORPNot Provided

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barkman, Lars Vaster.ang.s, SE 2 14
Fardig, Hakan Vaster.ang.s, SE 2 10
Forss, Torbjorn Vaster.ang.s, SE 3 50
Svensson, Tommy Vaster.ang.s, SE 5 37

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