Power Turret
Refers to a motor-driven tool turret (e.g., servo-driven) capable of mounting rotating tools (such as milling cutters, drills), enabling milling, drilling, tapping, and other complex operations during turning.
Key distinction from conventional turrets: Tools can actively rotate, expanding the lathe's machining capabilities.
Through-Tool Coolant (TTC)
Coolant (cutting fluid) is delivered through the central channel of the tool directly to the cutting zone, enabling high-pressure cooling and chip evacuation.
Core advantages: Coolant acts precisely on the tooltip, reducing heat, minimizing tool wear, and flushing away chips to avoid clogging (especially in deep-hole machining).
High-Pressure Cooling System
Coolant pressure typically ranges from 20–100 bar (or higher), penetrating deep holes or complex cavities to enhance machining efficiency.
Ideal for titanium alloys, stainless steel, and other hard-to-machine materials, or high-heat, high-precision operations like deep-hole drilling and thread machining.
Multi-Channel Control
Each tool station on the power turret can independently control coolant activation and flow rate, achieving on-demand cooling.
Example: Activate through-tool coolant during milling and switch to external spray during turning.
Tool Compatibility
Requires internal-coolant tools (e.g., drills or end mills with central coolant holes) and sealed toolholders to prevent leakage.
Deep-Hole Drilling
For holes with depth-to-diameter ratios exceeding 5:1, through-tool coolant ensures effective chip removal, preventing tool breakage.
High-Speed Machining
Suppresses heat generation, reduces thermal deformation, and improves surface finish.
Composite Material Machining
Prevents burrs or delamination in fiber-reinforced materials via coolant flushing.
Tool-Machine Compatibility
Ensure tool coolant channels match the machine’s pressure and flow specifications to avoid insufficient pressure or leaks.
Filtration and Maintenance
High-pressure coolant systems require precision filtration (e.g., ≤10μm) to prevent clogging of tool channels.
Sealing Integrity
Regularly inspect seals between toolholders and tools to prevent coolant leakage.
Chinese: 动力刀塔中心出水
English: Through-Tool Coolant (TTC) / High-Pressure Coolant (HPC)
Industry Terms: Central internal cooling, high-pressure through-tool coolant
Colloquial Usage: "Tool-center coolant" or "turret-center coolant delivery"
Summary:
"Power Turret with Through-Tool Coolant" is a core feature of CNC machines for high-efficiency复合加工, leveraging high-pressure internal cooling to address challenges in deep-hole and difficult-to-machine material applications. It is widely used in aerospace, mold manufacturing, and precision engineering. Key considerations include coolant pressure, tool compatibility, and system maintenanc