loading
| Availability: | |
|---|---|
| Quantity: | |
Introduction to WTQNR External Turning Tool Holder:
The WTQNR external turning tool holder is a type of modular quick-change tooling system widely used in CNC (Computer Numerical Control) and high-precision manual lathes. The alphanumeric designation typically follows the ISO standard for tool holders, where:
W: Indicates the tool holder type, in this case, designed for external turning operations.
T: Signifies the clamping method. "T" often represents a top-clamp style for securing the insert.
QNR: Refers to the specific shank style and locking mechanism.
Q: Often denotes a qualifying letter for the series or a specific feature (like a modified geometry).
N: Usually indicates the tool's normal (N) rake angle, as opposed to positive or negative rake designs.
R: Signifies that the tool holder has a right-hand cutting direction. This means the tool is designed to cut from the headstock towards the tailstock when mounted on a standard lathe.
Key Features and Functions:
Quick Change and Modularity: It is designed to work with a compatible quick-change tool post (often using a bayonet-type or similar locking system labeled "Q" series). This allows for rapid tool changes without the need for extensive re-adjustment, significantly reducing setup time.
Rigid Clamping: The "T" (top-clamp) design provides a robust and secure method to hold the cutting insert (commonly a rhomboid-shaped insert with a 55° or 80° point angle, depending on the specific WTQNR model). This ensures stability during heavy or fine cuts.
Right-Hand Cutting: As a right-hand tool, it is the most common type for standard external turning, facing shoulders, and longitudinal turning from right to left.
Precision and Repeatability: When used with a matching quick-change system, it offers high positional repeatability. Once a tool is preset, swapping it in and out maintains its cutting point accurately, which is crucial for CNC machining and batch production.
Versatility: By accepting various grades and geometries of indexable inserts, the same tool holder can be used for a range of materials (steel, stainless steel, cast iron, non-ferrous metals) and operations (roughing, finishing, profiling).
Typical Applications:
General external turning and facing on CNC lathes.
Longitudinal turning (reducing diameter) on cylindrical workpieces.
Shoulder turning.
It is a staple tool in modern workshops for efficient and precise metal cutting.
In summary, the WTQNR is a standardized, right-hand, top-clamp, quick-change tool holder that forms a critical part of a productive and flexible turning system, enhancing efficiency in both CNC and advanced manual machining environments.
