MONITORING APPARATUS AND TUNING METHOD OF GRADIENT WITH AIR-PRESSURE IN LASER-RESONATOR FOR LASER-WELDER

• Main Authors: KIM, JAE YOUNG, JEON, KWANG PIL, PARK, YOUNG HUN, HAN, JIN UG
• Format: Patent
• Language: English; Korean
• Published: 06.07.2011
• Subjects: BASIC ELECTRIC ELEMENTS; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DEVICES USING STIMULATED EMISSION; ELECTRICITY; GYROSCOPIC INSTRUMENTS; MACHINE TOOLS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; NAVIGATION; PERFORMING OPERATIONS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SOLDERING OR UNSOLDERING; SURVEYING; TESTING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

PURPOSE: A device for adjusting slope of a resonator of a laser welding device and a tuning method are provided to prevent drawbacks and welding failure of a laser generating unit by monitoring slope and air pressure of the laser generating unit. CONSTITUTION: Slope detectors(110,120) are fixed to the lower end of a laser generating unit and detect slope in real time. An air pressure detecting unit(130) detects air pressure supplied to an air damper in real time. A servo motor module(140) drives servo motors with control signals to adjust the slope. A converting unit(150) converts the analog signals of the air pressure detecting unit and the slope into digital signals. A central calculating unit(160) records and analyzes the slope and air pressure input from the converting unit and controls the servo motor module or generates an alarm signal and a message.