CNC Nail Cutter Grinding Machine
The CNC Nail Cutter Grinding Machine is a specialized multi-axis numerical control tool grinder engineered for precision sharpening and maintenance of nail machine cutter dies (knives).
Description
CNC Nail Cutter Grinding Machine
Product Overview
The CNC Nail Cutter Grinding Machine is a specialized multi-axis numerical control tool grinder engineered for precision sharpening and maintenance of nail machine cutter dies (knives). In high-speed wire nail production, cutter dies endure severe impact loading and abrasive wear against carbon steel wire, degrading cutting edge geometry after continuous operation. Re-sharpening these tungsten carbide or high-speed steel (HSS) cutters directly determines wire nail cut quality, burr formation, and overall tooling longevity.
Traditional manual grinding introduces angular deviations, inconsistent edge radii, and shortened tool lifespan. This CNC grinding system integrates closed-loop servo drives, rigid cast-iron machine beds, and specialized tool-holding fixtures to restore exact rake angles, clearance angles, and cutting face flatness. By automating the grinding cycle for complex contour profiles, the machine ensures dimensional repeatability within micron-level tolerances, reducing consumable tooling expenses in commercial nail manufacturing plants.
Key Features
Rigid Cast Iron Base & Thermal Stability: The machine bed utilizes heavy-duty seasoned Meehanite cast iron, absorbing vibration during high-speed wheel contact and maintaining structural rigidity under thermal load variations.
Multi-Axis CNC Interpolation: Features independent servo-driven X, Y, and Z axes coordinated by an industrial CNC controller, enabling precise contour grinding of radius, bevel, and shear faces on single or multi-slot cutter dies.
High-Precision Spindle Assembly: Equipped with a dynamically balanced high-frequency motorized spindle that minimizes radial runout below 0.002 mm, preventing micro-chipping on carbide cutting edges during finish passes.
Integrated Coolant & Filtration System: A multi-stage coolant delivery system applies flood cooling directly at the grinding contact zone, suppressing thermal cracking and flushing metal debris away from the diamond or CBN grinding wheel.
Macro-Program Operation Interface: The control software includes parametric grinding macros tailored for standard and custom nail cutter geometries, allowing operators to input specific rake angles and stock removal depths without complex G-code programming.
Optical Profile Inspection Integration: Built-in optical magnification and digital readout provisions allow operators to inspect edge wear and verify alignment directly on the clamping fixture without re-clamping.
Technical Specifications
|
Parameter |
Specification |
|
Control System |
3-Axis CNC Controller (X, Y, Z Simultaneous Interpolation) |
|
Max. Cutter Diameter Capacity |
10 mm – 80 mm (Custom fixtures available) |
|
X-Axis Travel (Longitudinal) |
250 mm |
|
Y-Axis Travel (Cross) |
150 mm |
|
Z-Axis Travel (Vertical) |
180 mm |
|
Spindle Speed Range |
1,000 – 6,000 RPM (Variable Frequency) |
|
Grinding Wheel Dimensions |
Outer Dia. Ø150 mm × Hole Dia. Ø32 mm |
|
Positioning Accuracy |
± 0.001 mm |
|
Repeatability |
± 0.0005 mm |
|
Spindle Motor Power |
2.2 kW |
|
Total Connected Power |
4.5 kW |
|
Coolant Tank Capacity |
80 Liters (with magnetic separator & paper filter) |
|
Machine Dimensions (L × W × H) |
1,200 mm × 1,100 mm × 1,650 mm |
|
Net Weight |
1,150 kg |
Applications
This grinding machine is deployed in tool rooms and maintenance workshops of industrial wire nail manufacturing facilities. Specific application workflows include:
Carbide & HSS Cutter Regrinding: Re-sharpening worn cutting edges of split-type and solid nail cutter dies used in high-speed rotary and slider-type wire nail machines.
Point & Head Shear Face Restoration: Re-machining the precise shear angles required to cleanly sever wire stock without leaving wire tails, burrs, or deformed nail points.
Custom Tooling Prototyping: Grinding custom profile punches and specialized trimming dies for specialized fastener and hardware production lines.
Preventive Tool Maintenance Programs: Establishing systematic tool-room routines to extend cutter service life by 300% to 500% compared to discarding worn tooling.
FAQ
Q: What types of cutting materials can this machine process?
A: The machine is optimized for grinding tungsten carbide inserts and high-speed steel (HSS) nail cutter dies using appropriate diamond or cubic boron nitride (CBN) grinding wheels.
Q: How does the machine handle different cutter sizes and shank configurations?
A: It utilizes quick-change modular collets and universal indexing vises secured via precision T-slots, allowing operators to switch between different cutter types within minutes without dedicated re-tooling.
Q: What level of operator training is required for CNC programming?
A: Operators do not require advanced G-code programming knowledge. The control system features a proprietary dialog-style interface where users input geometric parameters (such as rake angle, clearance angle, and stock removal depth) directly into pre-compiled grinding cycles.
Q: How is thermal expansion controlled during extended grinding shifts?
A: The cast-iron bed dampens vibration, while the continuous flood coolant system regulates workpiece and wheel temperatures. Furthermore, pre-loaded linear guide rails and precision ball screws minimize backlash and thermal drift.
Q: What electrical power supply requirements apply for export models?
A: Standard units operate on 380V / 50Hz / 3-Phase. Custom electrical configurations (e.g., 220V, 440V, or 480V at 60Hz) are available upon request to match regional facility grids in North America and Europe.
Request a Quote
To receive a detailed commercial quotation including freight terms, tooling accessories, and electrical compatibility verification, provide your specific production requirements below:
Target Cutter Types / Materials: (E.g., Tungsten Carbide Solid Cutters, HSS Inserts)
Current Weekly Cutter Consumption / Regrinding Volume:
Required Electrical Voltage / Frequency:
Destination Port / Delivery Location:
Submit your technical inquiry directly to our engineering sales team for prompt specification review and quotation response.
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