AUTOMATIC WELDING DEVICE OF STEEL PIPE USED INCLINED PLANE ANGLE OF WELDING AREA

摘要

The present invention relates to a steel pipe automatic welding device using the inclined plane angle of a welding area comprising: a welding device main body (10) having a driving part transferred by being attached to the surface of a steel pipe by magnetic force in the bottom; a welding torch (20) installed to be able to adjust the angle in one side of the welding device main body(10); a sensing part (30) installed in the welding device main body (10), and located on the same line with the welding torch (20) to sense a welding area (w) formed as a pair of steel pipes (1) are in contact with each other by using a laser sensor; and a controlling part (40) for obtaining the inclined plane angle (a1, a2) within the welding area (w) by using data sensed by the sensing part (30), and for obtaining the welding part depth (d) by using the inclined plane angle (a1, a2). Moreover, the controlling part (40) is capable of adjusting the angle of the welding torch (20) by using the calculated inclined plane angle (a1, a2), and adjusting the height of the welding torch (20) by using the welding part depth (d). The present invention has an effect of automatically adjusting the angle and the height of the welding torch by automatically sensing the difference even if a distance between the steep pipes is not fixed, and accurately welding while a welding bead is uniformly formed regardless of variation of the welding area thereby.