Bridge cranes are widely used, can be used for factory and logistics storage material handling, can also be used for port terminal container handling, can also be used for steel plant ladle handling. We can customize products according to customer needs and provide the best products and services to customers around the world.
The largest workshop of Henan Mining Crane Co., LTD., Workshop No. 5, Robot Welding Station, robots are welding the box girder of large crane.
Working Principle of Robotic Welding Crane (English Translation)
1. Teaching Programming
Operators guide the robot to record welding trajectories, arm postures, and parameters (current, voltage, etc.), with the system generating executable code.
2. Mechanical Motion Control
A multi-degree-of-freedom robotic arm (6+ axes) equipped with a welding gun achieves ±0.05mm positioning accuracy via servo motors and gear-rack systems, enabling complex 3D welding.
3. Welding Process Management
The welding power source adjusts energy input (current/voltage or laser beam), while sensors monitor the molten pool and dynamically optimize parameters for consistent weld quality.
4. Auxiliary Systems
A positioner rotates/tilts workpieces to expand welding coverage, and a gantry frame supports large-span crane structures. Visual/IR sensors enable collision avoidance.
5. Quality Control Loop
Post-weld visual or ultrasonic inspection feeds data back to the system for process optimization.
Typical Workflow:
Workpiece fixation → Robot initialization;
Robotic arm follows programmed paths while controlling welding gun posture and wire feeding5;
Returns to standby after completion
Application: High-efficiency, precision welding for large steel structures like crane girders and legs.
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