Narrow gap laser-TIG arc hybrid welding apparatus and method

US12311463B2 · kind B2 · utility

Assignee

• HARBIN WELDING INSTITUTE LIMITED COMPANY · CN

Inventors

• Ruisheng HUANG · Jingwei, CN
• Bin TENG · Dalian, CN
• Yan Zhang · Beijing, CN
• Kai Xu · Tempe, US
• Dakui FEI · Jingwei, CN
• Bao JIANG · Jingwei, CN
• Pengbo Wu · Jingwei, CN
• Xiaomei LIANG · Jingwei, CN
• Jipeng ZOU · Jingwei, CN

Key dates

• Filing date: Dec 16, 2023
• Grant date: May 27, 2025
• Expiry date: Dec 16, 2043

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K26/348
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

Disclosed are a narrow gap laser-TIG arc hybrid welding apparatus and method. The welding apparatus includes a welding gun body, a swing welding gun assembly, a welding wire feeding and heating assembly, and a gas conveying assembly; the swing welding gun assembly includes a welding gun rotating shaft, a stepper motor, a large gear, a pinion, an upper insulating sleeve, a lower insulating sleeve, a tungsten electrode clamp, and a tungsten electrode; the stepper motor is mounted on a motor connection seat; the pinion is mounted on the output shaft of the stepper motor; the large gear is mounted on the welding gun rotating shaft; the pinion is engaged with the large gear; the welding gun rotating shaft is mounted and positioned on the welding gun body; the tungsten electrode is mounted at the tail end of the welding gun rotating shaft by means of the tungsten electrode clamp.