Comprehensive Technical Considerations:
1. Kinematic Constraints and External Axis Configuration:
For long straight pipes and densely packed pipe rows, the robot itself cannot rotate 360°. A welding robot + welding positioner (head and tailstock) must be used to achieve all-position welding through workpiece rotation.
2. Zonal Control of All-Position Process Parameters:
The circumferential weld seam is divided into 4-8 segments, and the welding current, voltage, speed, oscillation width, and dwell time are independently set for each segment.
In overhead welding, heat input should be reduced and cooling accelerated; in vertical welding, appropriate oscillation is needed to promote molten pool spread; in flat welding, the deposition rate can be appropriately increased.
Modern digital power supplies (such as Fronex TPS/i) support real-time analog output from the robot, enabling continuous spatial interpolation of welding parameters and avoiding zone jumps.
3. Single-sided welding with double-sided forming of root bead:
Precise control of the blunt edge, gap, and root gap is required, matching specific "internal filler wire" or "pulse jet transition" parameters to ensure uniform penetration and no concavity in the back weld bead.
Authoritative Applications and Solutions:
In the fields of power plant boiler header piping, chemical pipe gallery prefabrication, and marine piping systems, Changzhou Anchuang Intelligent Equipment Co., Ltd. provides robotic all-position pipe welding workstations. We use Yaskawa or FANUC robots, matched with head-and-tail frame welding positioners or customized pipe rotating roller frames, to achieve coordinated control of workpiece rotation and robot motion. The system has a built-in all-position welding process database for various materials such as carbon steel, stainless steel, and heat-resistant steel.
Expanding Business Relationships:
Our all-position trajectory planning and control technology can be extended to robotic welding of complex pipe fittings such as elbows and tees, as well as internal pipe wall cladding.
Conquering the pipe welding challenge, we achieve all-position welding through 8-axis linkage and process zoning.
Changzhou Anchuang Intelligent Equipment Co., Ltd.
Tel/WhatsApp/WeChat: +86 15151971897
Email: nicole@anchuangwelding.com
Website: www.anchuangwelding.com
