A Receding Die Head Pipe Threader Machine is a specialized tool used for cutting precise and standardized threads onto pipes or rods. This machine is widely employed in industries like plumbing, construction, oil and gas, and manufacturing, where threaded connections are critical. Here’s a technical breakdown:

Key Components

1. Receding Die Head:
   • The central feature of the machine.
   • It holds the threading dies (cutting tools).
   • The “receding” mechanism allows the dies to retract automatically after completing the thread, ensuring clean termination and preventing over-threading.
2. Threading Dies:
   • Interchangeable tools made from hardened steel or carbide.
   • Designed to cut threads of specific sizes and types (e.g., NPT, BSP).
3. Spindle and Chuck:
   • The spindle rotates the pipe or rod.
   • The chuck securely holds the workpiece in place during threading.
4. Power Drive:
   • Can be manual, electric, or hydraulic.
   • Provides the rotational force needed for threading.
5. Coolant System:
   • Delivers lubricant to the threading zone.
   • Reduces friction, dissipates heat, and prolongs the life of the dies.
6. Depth and Diameter Adjustment:
   • Ensures precision threading according to standards.
   • Allows the user to set the desired thread pitch and depth.

Working Principle

1. Clamping the Workpiece:
   • The pipe or rod is securely clamped in the chuck.
2. Setting the Die Head:
   • The die head is adjusted for the desired thread size and pitch.
3. Thread Cutting:
   • The machine rotates the pipe while the die head cuts the threads.
   • The dies engage with the material, progressively cutting deeper until the thread is fully formed.
4. Receding Action:
   • Once the thread is complete, the die head’s receding mechanism automatically retracts the dies.
   • This ensures a smooth disengagement without damaging the threads.
5. Finishing:
   • The pipe is removed, and the threads are inspected for quality.

Advantages

• Precision: Produces consistent and accurate threads.
• Efficiency: Automatic receding reduces manual intervention and saves time.
• Versatility: Accommodates various thread sizes and types.
• Durability: Designed for heavy-duty industrial use.

Applications

• Threading pipes for plumbing systems.
• Creating threads on rods for construction and scaffolding.
• Oil and gas pipeline installations.
• Manufacturing threaded components for machinery.

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