DMK QILIN BWT30/BWT30-PC Multioperator Industrial Laser Welding Head

1. Introduction

This manual provides essential information for the safe and efficient operation, setup, and maintenance of your DMK QILIN BWT30/BWT30-PC Multioperator Industrial Laser Welding Head. This advanced welding head is designed for integration with platform laser welders, offering high precision and versatility for various industrial applications. Please read this manual thoroughly before installation and operation to ensure optimal performance and safety.

2. Safety Information

WARNING: Laser radiation can cause severe eye and skin damage. Always follow safety protocols and wear appropriate personal protective equipment (PPE).

• Eye Protection: Always wear certified laser safety goggles appropriate for the laser wavelength and power being used. Never look directly into the laser beam or its reflection.
• Skin Protection: Wear appropriate protective clothing to prevent skin exposure to laser radiation.
• Electrical Safety: Ensure all electrical connections are properly grounded and conform to local electrical codes. Disconnect power before performing any maintenance or adjustments.
• Ventilation: Ensure adequate ventilation in the work area to remove fumes and particulate matter generated during welding.
• Emergency Stop: Familiarize yourself with the location and operation of all emergency stop buttons on the laser system and associated equipment.

3. Product Overview

3.1 Key Features

• The swing angle can be set arbitrarily, providing flexibility for various welding tasks.
• Compatible with a variety of fiber laser sources through QBH/RD fiber interface types.
• Process packages can be easily edited, stored, and recalled for consistent results.
• Equipped with a coaxial blowing device to ensure bright and aesthetically pleasing welding seams.
• Modular design facilitates easy and quick assembly and maintenance.
• Optimized optical design for superior performance.
• Water cooling and double sealing enhance durability and stability during operation.
• Features a double protection lens with drawer installation, capable of handling up to 3000W laser power.
• The BWT30-PC version supports multi-station welding with different parameters, increasing operational efficiency.

3.2 Components

The DMK QILIN BWT30/BWT30-PC laser welding head system typically includes the welding head, a controller and display screen, and a wire feeder (optional, depending on the version). The welding head itself is lightweight, weighing only 2.1kg, making it ideal for integration with robotic arms.

3.3 Model Variations

The QILIN BWT30 series offers two main versions: BWT30 and BWT30-PC, differing primarily in their control and display capabilities.

4. Technical Specifications

5. Setup Instructions

1. Unpacking and Inspection: Carefully unpack all components. Inspect for any visible damage during shipping. Report any damage to the supplier immediately.
2. Mounting the Welding Head: Securely mount the welding head to your platform laser welder or robotic arm. The lightweight design (2.1kg) makes it suitable for robotic integration. Ensure stable and precise positioning.
3. Connecting Fiber Laser Source: Connect the fiber laser source to the welding head using the appropriate QBH or RD interface. Ensure the connection is clean and secure to prevent power loss or damage.
4. Connecting Power and Control Cables: Connect the power supply and control cables to the welding head and its associated controller/display unit. Refer to the wiring diagrams provided with your specific laser system for correct connections.
5. Connecting Cooling System: Connect the water cooling lines to the welding head. Ensure the cooling system is filled with the appropriate coolant and is functioning correctly to maintain optimal operating temperature.
6. Connecting Coaxial Blowing Device: If using, connect the coaxial blowing device to an inert gas supply (e.g., Argon, Nitrogen) to ensure a clean welding environment and bright seams.
7. Initial Power-On and System Check: After all connections are made, power on the system. Perform an initial system check according to your laser source and robot arm manufacturer's guidelines. Verify that the display screen and camera (if applicable) are functioning.

6. Operating the Laser Welding Head

1. Pre-Operation Checks: Before starting, ensure all safety measures are in place, including wearing PPE, proper ventilation, and clear work area. Verify cooling system status and gas supply.
2. Parameter Setting: Use the control interface to set welding parameters such as laser power (up to 3000W), wave frequency (2-30HZ adjustable), wave range (0.2-5mm), and swing angle. The BWT30-PC version allows for multi-station welding with different parameters.
3. Process Package Management: Utilize the system's capability to edit, store, and recall specific process packages for different materials and welding requirements. This ensures consistent and repeatable welding quality.
4. Initiating Welding: Position the welding head over the workpiece. Activate the laser and begin the welding process. Monitor the welding through the integrated camera and display screen for real-time feedback.
5. Monitoring and Adjustment: Continuously monitor the welding process. Make minor adjustments to parameters as needed to achieve the desired weld quality. The coaxial blowing device helps maintain a clean weld pool and bright seam.
6. Post-Operation: Once welding is complete, deactivate the laser, turn off gas supplies, and allow the system to cool down. Perform any necessary post-weld inspections.

7. Maintenance

Regular maintenance is crucial for the longevity and optimal performance of your laser welding head.

• Lens Cleaning: Periodically inspect and clean the double protection lenses. The drawer installation design allows for easy access. Use only approved optical cleaning solutions and lint-free wipes to avoid scratching the lens surface.
• Cooling System Check: Regularly check the coolant level and quality in the water cooling system. Ensure there are no leaks and that the system is effectively dissipating heat. Replace coolant as recommended by the manufacturer.
• General Inspection: Routinely inspect all cables, hoses, and connections for wear, damage, or loose fittings. Ensure the modular components are securely fastened.
• Nozzle and Gas Path: Clean the welding nozzle and ensure the coaxial blowing device's gas path is free from obstructions to maintain consistent gas flow.

8. Troubleshooting

If you encounter issues with your laser welding head, consider the following general troubleshooting steps:

• No Laser Output: Check power connections, emergency stop status, and laser source readiness. Verify fiber optic cable integrity.
• Poor Weld Quality: Review welding parameters (power, frequency, speed, focus). Ensure lenses are clean and undamaged. Check gas shield effectiveness and nozzle condition.
• Overheating: Verify the cooling system is operational, coolant levels are adequate, and water flow is unobstructed.
• System Errors: Consult the error codes displayed on the control screen and refer to your laser system's specific troubleshooting guide.

For complex issues or problems not resolved by these steps, please contact Demarklaser customer support or a qualified service technician.

9. User Tips

• Material Preparation: Always ensure workpieces are clean and free of contaminants (oil, rust, paint) for optimal weld quality.
• Parameter Optimization: Experiment with different welding parameters on scrap material to find the ideal settings for your specific application and material thickness.
• Regular Calibration: If integrated with a robot, ensure regular calibration of the robot arm and welding head for consistent path accuracy.
• Environmental Control: Maintain a stable environment (temperature, humidity) to prevent condensation on optical components and ensure consistent laser performance.

10. Warranty and Support

For detailed warranty information, technical support, or service requests, please contact your authorized Demarklaser distributor or the seller directly. Ensure you have your product model number and purchase date available when contacting support.