WELDING ROBOT EASY TEACHING APPARATUS CAPABLE OF REDUCING WELDING WORK HOURS BY CALCULATING THE START AND THE END POINTS WITHOUT DIRECTLY MOVING THE ROBOT AND A WELDING METHOD THEREOF

摘要

PURPOSE: A welding robot easy teaching apparatus and a welding method thereof are provided to use a laser displacement sensor, an absolute position encoder, and a control panel in order to measure the distance, pitch, and yow of a welded object, and to convert the coordinate of the welded object, thereby reducing welding work hours by automatically calculating positions of the start and end points of the welded object and performing welding based on the welding posture and welding conditions of the welding robot which is stored in a database.;CONSTITUTION: A welding method using a welding robot easy teaching apparatus comprises the following steps of; attaching an easy teaching device which is a sensor module to the welding robot; supplying power through the electric contact of a mounting bracket from the welding robot to the sensor module; enabling a user to manually control the sensor module for a distance sensing unit in order to indicate and store the start and end points of welding; and wirelessly transmitting the sensing information through a control panel to a robot teaching controller. The welding method using a welding robot easy teaching apparatus is added by the following steps of: on the robot teaching controller, calculating the position close to a welding teaching point which is viewed from the robot base coordinate; separating the sensor module from the welding robot; moving the welding robot to a position close to the welding teaching position; performing a touch sensing; confirming the position of current spark on a welding fire to confirm the exact start and end point of welding; and performing welding along the straight path connecting the start and end points of welding.;COPYRIGHT KIPO 2013;[Reference numerals] (200) Laser displacement; (300,400) Absolute encoder; (500) Sensing information collection and wireless communication board; (700) Robot teaching manipulator(TP); (AA) Distance measurement; (BB) Pitch angle measurement; (CC) Yaw angle measurement; (DD) Sensing information transmission(wireless communication)