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| Design of Automatic Welding Control System for Roller Sleeve Welding Robot in Roller Press |
| CNBM Equipment Group, CNBM (Hefei) Powder Technology Equipment Corporation Ltd. ,Hefei Anhui 230051, China |
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Abstract The welding process of a roller press sleeve consists of four layers from the inside to the outside: the root pass layer, transition layer, wear-resistant layer, and pattern layer. The welding quality directly affects the extrusion efficiency of the roller press. This study analyzes the drawbacks of traditional manual or semi-automatic welding methods, such as uncontrollable welding processes, difficulties in data traceability, and low production efficiency. To address these issues, a PLC-based robotic automatic welding control system is proposed. The system employs a PLC as the main control unit and utilizes IoT technology to enable cloud-based data transmission. Real-time monitoring and feedback of welding process data are achieved through a molten pool monitoring device, 3D scanning system, welding wire weighing device, and encoder. By developing PLC control program, roller sleeve welding robot control program, and HMI interface program, the system realizes full automation and precise control of the welding process. Production trials demonstrate that the robotic automatic welding control system significantly improves the surface uniformity and cleanliness of welded roller sleeve, effectively reduces crack formation, and enhances both welding quality and production efficiency. Furthermore, it ensures consistency in sleeve quality and traceability of the manufacturing process.
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Received: 17 October 2024
Published: 25 May 2025
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