Equipment for intelligent autonomous tungsten inert gas (SATIG) welding
The intelligent autonomous TIG welding device addresses manual operation limitations by integrating mechanical precision and real-time monitoring, achieving uniform deposition and defect detection, thereby enhancing weld quality and safety in complex welding scenarios.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- DR VISHWANATH KARAD MIT WORLD PEACE UNIV PUNE
- Filing Date
- 2026-02-24
- Publication Date
- 2026-04-23
AI Technical Summary
Conventional TIG welding relies heavily on manual operation, leading to variability, operator fatigue, safety hazards, and inconsistent weld quality, especially when welding dissimilar materials or complex joints, with limited automation and no real-time quality monitoring.
An intelligent autonomous TIG welding device with mechanical precision and intelligent monitoring, featuring a rigid base, synchronized movement via a motor-driven pulley mechanism, adaptable filler rod holder, and real-time image acquisition for defect detection, ensuring uniform deposition and improved weld quality.
Delivers improved accuracy, repeatability, safety, and flawless weld quality by transforming manual TIG welding into a structured autonomous process with controlled deposition and real-time quality assurance.
Smart Images
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Abstract
Description
AREA
[0001] The present disclosure relates generally to an intelligent autonomous tungsten inert gas welding device for controlled deposition of welding wire and fault-aware welding processes. GENERAL STATE OF THE ART
[0002] Tungsten inert gas (TIG) welding, also known as gas tungsten arc welding (GTAW), is widely used to produce high-quality welds in industries such as aerospace, automotive, shipbuilding, and railways. Conventional TIG welding relies heavily on manual operation, requiring skilled operators to precisely control torch movement, filler metal feed, welding speed, and welding angle. This manual dependency often leads to variability, operator fatigue, safety hazards, and inconsistent weld quality, especially when welding dissimilar materials or complex joints. Existing mechanical aids offer only limited automation and no real-time monitoring of weld quality.Therefore, there is a need for an autonomous TIG welding system that ensures controlled deposition of the welding filler material, uniform torch movement, improved safety, and error-aware welding processes. SUMMARY
[0003] The subject matter of the present invention is defined in the claims. BRIEF DESCRIPTION OF THE FIGURES Fig. Figure 1 illustrates an intelligent autonomous tungsten inert gas welding system for controlled deposition of welding wire and fault-aware welding processes. DETAILED DESCRIPTION OF THE INVENTION
[0004] Conventional tungsten inert gas (TIG) welding is highly dependent on manual control of the welding torch, filler metal, and shielding gas, leading to variable weld quality, operator fatigue, safety concerns, and inconsistent weld quality. These limitations are particularly evident when welding dissimilar metals or complex geometries, where precise deposition and real-time quality monitoring are crucial.
[0005] To overcome the aforementioned limitations, the present disclosure is achieved by an intelligent autonomous tungsten inert gas (SATIG) welding device that retains the fundamental principles of TIG welding while integrating mechanical precision, adaptability, and intelligent monitoring. The device comprises a rigid base and frame providing structural stability, with a welding torch holder and filler rod holder mounted upon it to enable controlled and synchronized movement. A motor-driven pulley mechanism, in conjunction with roller wheels, enables unidirectional and coordinated movement of the welding torch and filler rod holder, thereby ensuring a uniform traverse speed and molten metal deposition.The filler rod holder is configured to accommodate filler rods of varying diameters and angles, allowing for adaptability to diverse welding applications. Controlled filler rod feed is achieved via a deposition mechanism configured to deliver a predetermined length of filler rod during welding, ensuring uniform material deposition and reduced material waste. Shielding gas is maintained to guarantee weld pool integrity. Furthermore, a real-time image acquisition system is integrated into the unit to monitor the weld pool and detect and classify welding defects using intelligent analysis techniques.By combining controlled mechanical movement, adaptable holding devices, precise deposition and fault-aware monitoring, the SATIG welding system transforms conventional manual TIG welding into a structured autonomous process that delivers improved accuracy, repeatability, safety and flawless weld quality that meets modern industrial requirements.
[0006] Fig.Figure 1 illustrates an intelligent autonomous tungsten inert gas (TIG) welding device 100, comprising a base and frame 102 supporting the entire structure, a welding torch holder 104 mounted on the frame 102 for guiding a welding torch, and a filler rod holder 106 mounted on the frame 102 for holding filler rods of varying diameters and angles. A motor-driven pulley mechanism 108 is operationally connected to the welding torch holder 104 and the filler rod holder 106 to enable synchronized and unidirectional movement during welding. Roller wheels interact with the pulley mechanism 108 to enable smooth linear movement of the welding torch holder 104 and the filler rod holder 106. The device 100 further includes a real-time image acquisition system configured to detect and classify welding defects during autonomous welding operations.
[0007] Although the implementations of an autonomous tungsten inert gas (SATIG) welding device have been described with respect to certain structural features and operational aspects, it should be noted that the attached claims are not necessarily limited to the specific components or configurations described.
Claims
[1] Device (100) for intelligent autonomous tungsten inert gas welding, the device (100) comprising: a base and frame (102) configured to support welding operations; a welding torch holder (104) which is mounted on the frame (102); a filler bar holder (106) mounted on the frame (102), which can accommodate filler bars with different diameters and angles, wherein the filler bar holder (106) is configured to deposit a predetermined length of the filler bar during welding; a motor-driven pulley mechanism (108) which is operationally connected to the welding torch holder (104) and the filler rod holder (106); and a roller wheel that interacts with the motor-driven pulley mechanism (108) to control a synchronized and unidirectional movement of the welding torch holder (104) and the filler rod holder (106), wherein the device (100) is operational and performs autonomous welding operations with defect detection and classification using a real-time image acquisition system. [2] Device (100) according to claim 1, wherein the filler rod holder (106) is configured to accommodate filler rods with diameters ranging from 1.6 mm to 3.4 mm and angles of 30°, 45°, 60°, 70° and 90°, and wherein the movement of the filler rod is controlled to achieve uniform deposition of the material. [3] Device (100) according to claim 1, wherein the motor-driven pulley mechanism (108) is configured to deposit approximately 10 cm of filler rod per minute, and wherein the real-time image acquisition system is configured to detect and classify welding defects using techniques based on artificial intelligence.