METHOD FOR AUTOMATICALLY CORRECTING MARKING PATTERN OFFSET ACCORDING TO DRIVING AXIS DEVIATION IN LASER MARKING SYSTEM

摘要

A method for automatically correcting a marking pattern offset caused by driving axis deviation in a laser marking system is provided to improve accuracy of a marking result and reduce manufacturing cost of test equipment. A method for automatically correcting a marking pattern offset caused by driving axis deviation in a laser marking system comprises the following steps. A photosensitive plate is fixed on a stage and a dot pattern for a test is marked at a predetermined interval. A vertical center line of a camera screen is matched with a virtual center line for the dot pattern for a test marked. The stage is moved in a Y-axis direction and stopped in a predetermined location so that the dot pattern for a test is photographed.