Tool Grinding Machine: Precision Sharpening for Cutting Tools and Industrial Inserts

What is a Tool Grinding Machine?

A Tool Grinding Machine is a specialized CNC or manual machine designed to sharpen, reshape, and maintain cutting tools such as drills, end mills, reamers, and inserts. It ensures optimal tool performance, extending lifespan and maintaining cutting accuracy.

Types of Tool Grinding Machines

1. CNC Tool Grinders
   • Automated 5-axis machines for complex geometries (e.g., helical flutes, ball-nose end mills).
2. Universal Tool Grinders
   • Manual machines for general-purpose sharpening (e.g., lathe tools, planer blades).
3. Optical Profile Grinders
   • Use microscopes to grind precision punches and dies (±0.002mm accuracy).
4. Saw Blade Sharpeners
   • Specialized for circular saws and band saw blades.

Key Advantages

✔ Extended Tool Life: Reduces replacement costs by 300–500%.
✔ Precision: Achieves ±0.005mm tolerances on cutting edges.
✔ Versatility: Grinds HSS, carbide, ceramic, and diamond tools.
✔ Cost Savings: Eliminates outsourcing for resharpening.

Applications

• Metalworking: Sharpening milling cutters and threading tools.
• Woodworking: Maintaining router bits and saw blades.
• Aerospace: Regrinding turbine blade machining tools.

Operation Process

1. Tool Mounting: Secure tool in collet or fixture.
2. Wheel Selection: Choose diamond/CBN wheels for carbide, aluminum oxide for HSS.
3. CNC Programming: Input geometry (rake angle, relief angle).
4. Grinding:
   • Roughing: 0.05–0.2mm depth of cut.
   • Finishing: 0.005mm passes for mirror edges.
5. Deburring & Inspection: Microscope checks edge sharpness.