WELD LINE DETECTION SYSTEM

• Main Author: NAKAGAWA SHINICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 05.04.2023
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PERFORMING OPERATIONS; PHYSICS; REGULATING; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

To provide a weld line detection system that can enhance efficiency in work for teaching operation to a welding robot to improve a weld quality.SOLUTION: The weld line detection system comprises: a photographing part 211 that photographs an image of an object to be welded; a coordinate system setting part 212 that sets a user coordinate system with a marker included in the photographed image as a reference; a point group data drawing part 213 that detects a specific position of the marker on the basis of the image, sets the detected specific position on point group data obtained by a distance measurement sensor that measures a distance up to the object to be welded, and draws, on the user coordinate system, the point group data added with a coordinate of the user coordinate system with the set specific position as an original point; and a weld line detecting part 214 that detects a weld line of the object to be welded, on the basis of the point group data drawn on the user coordinate system.SELECTED DRAWING: Figure 2 【課題】溶接ロボットに動作を教示させる作業効率を高め、溶接品質を向上させることができる溶接線検出システムを提供する。【解決手段】溶接対象の画像を撮影する撮影部２１１と、撮影された画像に含まれるマーカを基準とするユーザ座標系を設定する座標系設定部２１２と、画像に基づいてマーカの特定位置を検出し、当該検出した特定位置を、溶接対象までの距離を測定する距離計測センサにより取得された点群データ上に設定し、当該設定した特定位置を原点とするユーザ座標系の座標が付与された点群データを、ユーザ座標系に描画する点群データ描画部２１３と、ユーザ座標系に描画された点群データに基づいて、溶接対象の溶接線を検出する溶接線検出部２１４と、を備える。【選択図】図２