Positioning device suitable for flange connection of small-caliber pipeline

• Main Authors: SONG BAIGANG, LI CHENG, GUO ZHANGFENG, XIAO HONGWEN, BAI WEIBO, HUI SEN, SHANG YANBO, KONG QINGXIANG, ZHANG SHIHUI
• Format: Patent
• Language: Chinese; English
• Published: 26.09.2023
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The utility model relates to a positioning device suitable for small-caliber pipeline flange connection, and belongs to the field of flange connection auxiliary equipment.The positioning device comprises a base, a positioning ring and a positioning plate are arranged on the base, the positioning plate is perpendicular to the base, the positioning ring is located below the positioning plate, the positioning plate is an arc-shaped plate, and the center of the positioning ring coincides with the central axis of the positioning plate; the circumferential wall of the small-caliber pipeline is attached to the inner wall of the positioning plate, the flange is placed on the positioning ring, in this way, one end of the pipeline is inserted into an inner hole of the flange to achieve positioning of the pipeline and the flange during placement, then the pipeline flange is directly welded, the whole positioning and welding process saves the workpiece clamping process of a clamping piece, and the welding efficiency is i