LASER SENSOR FOR WELDING

PROBLEM TO BE SOLVED: To miniaturize a sensor head without reducing the resolution in a depth direction of a bevel, and to measure the characteristic amounts of the bevel shape without being influenced by disturbance caused by spatters and fumes. SOLUTION: Slit light outgoing from a laser projecting...

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Bibliographic Details
Main Authors KATSUKI MAKOTO, MO BUNKETSU, KISHIDA HITOSHI
Format Patent
LanguageEnglish
Published 15.07.2004
Edition7
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
PHYSICS
SOLDERING OR UNSOLDERING
TESTING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:PROBLEM TO BE SOLVED: To miniaturize a sensor head without reducing the resolution in a depth direction of a bevel, and to measure the characteristic amounts of the bevel shape without being influenced by disturbance caused by spatters and fumes. SOLUTION: Slit light outgoing from a laser projecting device 10 is deflected at a fixed angle by a plane reflecting mirror 12 and is applied to the surface including a bevel of a base metal 7 at a fixed incident angle; the reflection of the slit light applied to the base metal is made incident on a photographing device 11; the laser projecting device 10 and the photographing device 11 are provided parallel inside housing 13; and the sensor head 5 is miniaturized. The miniaturized sensor head 5 is arranged in the vicinity of a welding torch 4, and the welding torch 4 is controlled to a high precision following the bevel. COPYRIGHT: (C)2004,JPO&NCIPI
Bibliography:Application Number: JP20020366356