3D Vision-Guided Robotic Arm Welding for Steel Structures

Intelligent Welding of Steel Structures

Steel structures are essential components in industrial and public construction projects. As global demand rises, welding remains a critical processing technology. Factors like the shortage of skilled welders and stricter quality requirements have created an urgent need for reliable welding robots.

However, the welding of non-standard, small-batch steel structures remains a major bottleneck in automated manufacturing. Supported by maturing 3D vision technology, robotic welding is evolving to meet these complex demands and advance the industrialization of non-standard steel processing.

Figure | Welding Robot

Inspection Requirements

• Inspection Item: Welding guidance and positioning

• Workpiece Size: 300 mm (L) × 150 mm (W) × 100 mm (H)

• Accuracy Requirement: 0.5 mm

• Speed Requirement: 200 mm/s

SinceVision Solution

The SinceVision SR7400 3D laser profilometer is used to scan steel components and capture exact 3D profile images. The host computer uses software algorithms to acquire the workpiece and weld seam coordinates, plan the optimal welding path, and issue the welding process parameters. After a brief manual confirmation, the compiled program launches to begin precise robotic welding.

SR Series utilizes 3D precision trajectory guidance technology, enabling welding robots to perform operations accurately on non-standard parts. The system also inspects final welding quality based on multiple process standards.

This provides the steel structure industry with a highly efficient solution for both automated welding guidance and defect detection, helping enterprises improve production capacity, reduce costs, and increase efficiency.

Broad Industry Applications

Beyond steel structures, the SR Series 3D laser profilometers are widely applied in automated manufacturing, robotic vision, 3D printing, medical devices, and aerospace exploration.