• See us at IMTS Chicago 12-17th September 2016, North Building Booth 6677
• Thank you to all who visited our stand at GrindTec in Augsburg this year. If you have any enquiries about the machines we exhibited or any of our other products, please contact Coborn
• See us at IMTS Chicago 12-17th September 2016, North Building Booth 6677
• Thank you to all who visited our stand at GrindTec in Augsburg this year. If you have any enquiries about the machines we exhibited or any of our other products, please contact Coborn
CNC Grinding Machine for PCD, PcBN and Carbide Tools
Coborn’s RG9 has been purpose designed for grinding the latest, high-tech tool materials. Tool formats which are possible include:
The ultra-high speed, VS4 vision system links into the Windows based control system and automates:
Features
Brief Specification
Wheel head| Grinding motor | 2.2 kW |
| Speed | 0-4,000 rev/min |
| Oscilation stroke | 300 mm max |
| Oscilation speed | 0-50mm/sec |
| Normal wheel format | Vitrified bond, 6A2 |
| Maximum radius | 2,000 mm |
| Conical clearance | 0-25 degrees |
| Cylindrical clearance | 0-25 degrees |
| Cross-slide travel | 40mm |
| In-feed travel | 45mm |
| Pivot rotation | 200 degrees |
| Rotary modules | RM100 or larger |
| Linear modules | LM50 or larger |
| Mist filter |
CNC Programming
The control system is housed in a convenient tower with room for expansion of drive systems.
The Graphical User Interface (GUI) is accessed via the touch screen or off-line. It is a multi-tasking system, which means you can run and develop programs at the same time.
You can program the machine via the touch-screen. A program for a complex tool is made up of a series of simple discrete blocks. The software is straightforward, intuitive and purpose-designed with PCD and PcBN tool production in mind. Training takes approximately 3-4 days for the standard 5-axis machine, with additional 2-3 days required for the linear module (LM50) and rotary module (RM100).
Applications
The RG9 is an extremely versatile machine, which can make small or large batches of tools, exactly to suit your customer order.
The RG9 features simple, user-friendly software, where simple programming blocks can be built step-by-step to produce the tool forms and geometries you need. This makes it ideal for automotive, aerospace, plastics and hard turning industry applications:
Technical Details
| Characteristic | RG9 |
|---|---|
| MACHINE | |
| - Machine type | CNC Grinding machine for PCD, PcBN |
| - Dimensions - main machine (w x d x h) | 1,520mm x 1,472mm x 1,980mm |
| - Total machine weight | 1,140kg |
| PRECISION | |
| - Positioning precision | 0.001mm |
| - Repositioning precision | 0.001mm |
| VISION SYSTEM | |
| - Vision system type | VS4 |
| - Optical axes | X, Y & Z all CNC controlled |
| - X & Y axis adjustment range and resolution | X & Y = 30mm x 0.1µm resolution |
| - Z axis adjustment range and resolution | Z (focus) = 60mm x 10µm |
| WHEEL SPINDLE | |
| - CNC controlled | Yes |
| - Spindle type | Coborn precision, dynamically balanced |
| - Wheel spindle power | 2.2kW |
| - Speed range | 70 m/s |
| WHEEL IN-FEED | |
| - CNC controlled | Yes |
| - In-feed travel available | 45mm |
| - In-feed travel resolution | 0.1µm |
| - Rapid in-feed rate | 10mm/sec |
| - Typical roughing in-feed rate on PCD | 12 - 15µm/sec |
| - Typical finishing in-feed rate on PCD | 3 - 5µm/sec |
| WHEEL TRAVERSE | |
| - CNC controlled | Yes |
| - Wheel traverse length | 300mm |
| - Wheel stroke speed | 0 - 50mm/sec |
| WHEEL STROKE POSITION | |
| - CNC controlled | Yes |
| - Wheel stroke position adjustment | 10µm |
| WORK TABLE - 'BOOM' | |
| - CNC controlled | Yes |
| - Inclination (for conial clearance) | -0.5 to 25 degrees |
| CROSS TABLE | |
| - CNC controlled | Yes |
| - Clamping surface size | 310 x 180mm |
| - Cross table travel range | 40mm x 0.1µm resolution |
| PIVOT | |
| - CNC controlled | Yes |
| - Pivot movement | 200 degrees |
| - Pivot position resolution | 1.4 seconds of arc |
| TOOL POST | |
| - Tool post hand | Right hand fitted as standard |
| - Tool nest format | Square fitted as standard |
| GRINDING WHEELS | |
| - Wheels bond type recommended | Vitrified 'KILO' bond |
| - Format | Usually 6A2 |
| - Wheel grit size for roughing PCD | Typically D25 - D35 |
| - Wheel grit size for finishing PCD | Typically D5 - D10 |
| - Wheel arbour | Required; allows rapid wheel changes |
| DRESSING | |
| - Roatary dressing unti | Fitted as standard |
| LUBRICATION | |
| - Centralised lubrication | Fitted as standard |
| COOLANT UNIT | |
| - Coolant unit dimensions (w x d x h) | 1,150mm x 500mm x 670mm |
| - Coolant unit weight | 80kg |
| - Coolant pump power | 0.12kW |
| - Coolant tank capacity | 100 litres |
| - Coolant pump flow rate | 50 l/min |
| ELECTRICAL REQUIREMENTS | 3 phase, 415v or 220v |
| Optional extras - not a complete listing | |
|---|---|
| 1. Rotary axis - RM100 | |
| - CNC controlled | Yes |
| - Face plate | Yes - for HSK, ISO, MK, Hydraulic chucks etc. |
| - Maximum cutter diameter with LM50 fitted | 150mm |
| - Maximum cutter length | 150mm from front face of spindle |
| 2. Linear axis - LM50 | |
| - CNC controlled | Yes |
| - Linear travel | 50mm |
| - Main application | Used in conjunction with RM100 for helical tools |
| 3. Larger Rotary and Linear Modules | Details on request |
| 4. Robot loading/unloading | Details on request |
| 5. Mist extraction system | Recommended if no central system available |
| 6. Tool nests | Many types available: tilting, round, square, V etc. |
