The **Automatic Vertical Cylinder Seam Welding Machine** is a high-precision welding system designed for seamless, multi-layer gas welding of cylindrical workpieces. It utilizes a **NBC-500 inverter digital welder**, which ensures stable and accurate power output for consistent welding performance. The machine features a **rotating workpiece** combined with a **swinging welding torch**, enabling efficient and uniform welds.
The **welding position** requires the workpiece to be clamped horizontally, ensuring stability during the process. The machine is constructed from **carbon steel**, providing robustness and durability. Both ends are equipped with an **active mechanism** and an **air-pressure tailstock**, allowing the head to remain fixed while the tailstock adjusts dynamically for different lengths of fuel tanks.
The **active head** is driven by a **frequency conversion motor** combined with a **three-claw clamping system**, offering smooth movement and stepless speed control. The **tailstock** uses a top pressure system to maintain tight contact with the workpiece. The **torch moving mechanism** employs pneumatic control for lifting, and the motor-driven swing gun allows adjustable left-right movement, making it adaptable to various production needs.
The **bracket mechanism** adjusts the V-shaped block opening to accommodate different workpiece diameters, ensuring the center remains aligned with the rotation axis. A **movable sliding door** with **welding protection glass** provides a clear view of the welding process while protecting operators from arc radiation and spatter.
The **pressure control system** follows national standards, ensuring safe and reliable operation. The **electrical control system** is based on a **PLC (Programmable Logic Controller)**, with a **Zhongwei touch screen** interface for parameter settings. Operators can adjust voltage, current, welding speed, and swing speed per layer, with both manual and automatic functions available.
All welding parameters are digitally controlled, allowing for precise adjustment of welding speed, number of layers, and numerical display. A dedicated **electrical control cabinet and operation box** are included, with standard cable management using tank chains, air hoses, and other components.
The machine includes a **safety protection system** that stops automatically in case of abnormal conditions and resumes operation after the issue is resolved. The **equipment color** is a dark gray vertical stripe paint, giving it a professional and clean appearance.
### Operation Procedure:
1. Manually place the workpiece on the bracket
2. Clamp the workpiece using the three claws
3. Extend the tailstock cylinder
4. Position the welding torch
5. Adjust the torch angle manually
6. Set welding current, voltage, motor speed, and swing size
7. Switch to automatic mode
8. Perform gas detection
9. Start the welding process
10. Lift the torch after completion
11. Reset the system
12. Retract the tailstock cylinder
13. Release the three claws
14. Unload the finished workpiece
Note: The **oscillator** can be set to either swing or not, depending on the welding process requirements.
### Welding Quality Standards:
- Uniform weld width and adjustable lap
- Aesthetically pleasing weld appearance
- No holes, cracks, burn-through, or slag defects
- Minimal spatter
- Weld tensile strength ≥ 500 MPa
This machine is ideal for industries requiring high-quality, repeatable vertical seam welding, such as automotive, aerospace, and industrial manufacturing. Its advanced automation and user-friendly interface make it a reliable choice for modern welding applications.
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