Automatic pipe threading system for heat exchanger welding robotic assembly line

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Industrial Automation & Intelligence Solutions

Stock Code：831045

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Automatic pipe threading system for heat exchanger welding robotic assembly line

The automatic pipe threading system for heat exchanger welding robotic assembly line adopts a modular method with 3 groups of modules separated, which is suitable for pipe threading operation of large diameter heat exchangers (less than φ8000). The device has an automatic lifting function. The heat exchange tube is automatically lifted and transported from the main lifting platform to the secondary fine-tuning lifting platform to automatically complete the function of threading the heat exchange tube. The platform is divided into a primary platform and a secondary platform. The primary platform is the main lifting platform, and the secondary platform has a height fine-tuning function and a left and right movement function - mainly used for the centering of the heat exchange tube and the tube sheet hole.

Application:

The welding robotic assembly line of the heat exchanger automatic threading system is widely used in the automatic welding of the heat exchange tube threading system of large-diameter heat exchangers (less than φ8000mm). The device has an automatic lifting function module and a heat exchange tube automatic threading function module. It realizes the functions of automatic tube feeding, position adjustment and automatic threading.

Advantage

Technical advantages of automatic pipe threading system welding robotic assembly line for heat exchanger:

1. The mechanical platform adopts 4 groups of power heads to realize the simultaneous insertion of multiple heat exchange tubes, which improves the efficiency of pipe threading. Each group of power heads is controlled separately, and a group of infrared devices are used to provide adjustment references, and the lateral and height data are manually set. The distance between each group of power heads can be fine-tuned.
2. The hydraulic lifting platform has a safety design, including stop devices such as hydraulic locks, and the mechanical platform is equipped with a self-locking device.
3. When threading the pipe automatically, each hole is automatically aligned (manual assistance is required in the early stage) to achieve semi-automatic threading. It can be upgraded later based on experience to automatically align the pipe.
4. When threading the pipe, a flexible clamp is used to allow the heat exchange tube to be automatically threaded, effectively avoiding forced threading to scratch or damage the heat exchange tube. When the side pneumatic device is inserted into the last section, the pipe threading conveying wheel uses a tendon wheel to ensure that the heat exchange tube is not damaged.
5. A mechanical support plate is designed in the width direction of the platform to avoid excessive deflection when the heat exchange tube is long. In addition, when the pipe head deviates during the threading process, an alarm device is set to correct it in time.