• 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
« PRODUCTS
Controls
Work range
RG5B-XD
PCD/PcBN TOOL MAKING
PCD/PcBN TOOL MAKING
- Overview
- Main Options & Brief Spec
- Strengths
- Control System
- Technical Details
Semi-Automatic Grinding Machine for PCD, PcBN
& Carbide Tools
Coborn’s RG5B-XD is a very rigid machine, purpose designed for grinding the latest, super-hard tool materials. Tool formats possible include:
- PCD & PcBN tipped turning/milling inserts and shank type tools
- PCD & PcBN multiple flank and multiple radii tools such as grooving tools
- Tools with multiple clearance angles
- PCD tools such as end mills, reamers and multi-tooth saws with optional rotary fixture
Wheel speed, wheel direction, stroke position and stroke amplitude can be set from the touch-screen. These tool blocks can be stored as a tool program for later recall or modification from the in-built industrial PC.
The machine may be fitted with an optical projector or the enclosed VS5-G vision system (as shown).
In-process measurements are possible with the additional VS5-GM vision system measurement module.
Main Options
- Variable speed inverter drive wheel head
- Digital pivot angle display
- Rotary fixtures – CF10 or CF14
- Central lubrication system
- Pneumatic pivot lock
- Hand wheel - fine traverse adjustment
- Air blast tool drying
- Audio touch probe
- Metric or imperial
- Automatic Pivot (RG5C)
Brief Specification
| Grinding motor | 2.2 kW |
| Oscilation | 300mm max |
| Traverse speed | 0.1 - 50mm/sec |
| Acceleration | Programmable |
| Wheel format | Vitrified bond, 6A2 |
| In-feed travel | 35mm |
Controls
| Steps per tool | 25 max |
| CNC Controller | Industrial PC |
| Back up | via Ethernet or USB port |
| X Y read outs | 1 μm |
Work range
| Cross-slide travel | 40mm |
| Maximum radius | 35mm |
| Conical clearance | 0-25 degrees |
| Cylindrical clearance | 0-25 degrees |
| Pivot motion | 200 degrees |
Strengths
- Extremely rigid construction, designed for PCD tool manufacture. Enhanced working envelope size
- Touch-screen control program blocks
- 25 memories for stroke start positions and stroke lengths, programmed reciprocation amplitude with digital position readout
- One touch, automatic view facility without loss of position
- 1 micron wheel infeed resolution
- Conical clearance movement up to 25 degrees. Via a single hand-wheel
- Tool radius up to 35mm
- Adjustable grinding pressure
- Fully compatible with Coborn fixtures
- Can be fitted with a projector or camera /monitor system/ vision system (VS5)
- Vision system with measurement module (VSS-M) available
- Rotary fixtures, tool nest/holders available
- Can be supplied with or retro-fitted with Automatic Pivot (RG5C)
Control System Features
- Control via an industrial PC, software by Coborn Engineering
- Easy to control, no ‘computing’ know-how necessary
- Input via a large, easy-to-read 15” touch-screen
- Tool programs quickly and easily developed ensuring minimal setup time
- Reciprocation amplitude and position stored and adjustable to 1 micron
- Reciprocating speed stored and adjustable from 0.1 to 50mm per sec
- Automatic view position facility, allows one-touch viewing and return
- Digital readout with one micron resolution, switchable from mm to inches
- Control unit is mounted on double swivel and tilt arm for convenient positioning
- Remote diagnosis over internet
- Network to central tool file repository
Technical Details
| Characteristic | Details |
|---|---|
| MACHINE | |
| - Machine type | Manual PCD Grinding Machine |
| - Dimensions - main machine (w x d x h) | 1,400mm x 1,270mm x 1,860mm |
| - Total machine weight | 770kg |
| CONTROL SYSTEM | |
| - Industrial PC + touch screen | Yes |
| - Blocks per tool program | 25 maximum |
| - Block records - wheel speed - wheel direction - wheel position - wheel stroke amplitude |
Yes Yes Yes Yes |
| - Internet connection | Via ethernet port |
| - Software upgrades, maintenance via Internet | Yes |
| OPTICS | |
| - Options available | Microscope / Projector / VS5G / VS5G + M |
| - Optics adjustment | X & Y slides = 30mm; Z slide (focus) = 50mm |
| WHEEL SPINDLE | |
| - Spindle type | Coborn precision, dynamically balanced |
| - Wheel spindle drive power | 2.2kW |
| - Speed range (if no inverter supplied) | Hihg speed - 4,000rpm, Low speed - 2,000rpm |
| WHEEL IN-FEED | |
| - By hand wheel | Yes |
| - In-feed travel available | 45mm |
| - In-feed travel resolution | 1µm (via Renshaw encoder) |
| - Typical roughing in-feed rate on PCD | 12 - 15µm/sec |
| - Typical finishing in-feed rate on PCD | 3 - 5µm/sec |
| - Grinding pressure adjustment | 90 Newtons minimum to be 'locked' |
| WHEEL STROKE | |
| - Maximum stroke length | 300mm |
| - Wheel stroke frequency | 0 - 100 Hz (typicaly used at 25Hz) |
| WHEEL STROKE POSITION | |
| - By hand wheel | Yes |
| - Wheel stroke position adjustment | Repeatability 10µm |
| WORK TABLE - 'BOOM' | |
| - Manually adjusted via one hand wheel | Yes |
| - Inclination (for conical clearance) | 0 - 25 degrees |
| CROSS SLIDE | |
| - Clamping surface size | 260 x 130mm |
| - Cross table travel range | 30mm |
| - Cross table position resolution | 10µm via vernier scale on handles |
| PIVOT | |
| - Pivot motion | Manual |
| - Pivot movement | 200 degrees |
| - Pivot setting | via vernier stops (4 available) |
| - Pivot position acuracy | +/- 1 minute of arc (readout on touch scren) |
| - Maximum tool radius | 0 - 35mm (40mm possible) |
| TOOL POST | |
| - Tool post hand | Righ hand fitted as standard |
| - Tool nest format | Square fitted as standard |
| - Tool nest height adjustment | Yes |
| - Tool nest tilt (cylindrical clearance} | ± 20 degrees |
| GRINDING WHEELS | |
| - Wheels bond type recommended | Vitrified bond |
| - Format | Usually 6A2 |
| - Wheel grit size for roughing PCD | Typically D25 - D35 |
| - Wheel grit size for finishing PCD | Typically D5 - D10 |
| - Wheel arbor | Required; allows rapid wheel changes |
| DRESSING | |
| - Method | By dressing stick |
| - Stick recommended | Aluminium Oxide, 20mm x 20mm, 400# |
| LUBRICATION | |
| - By hand pump to nipples | Yes |
| COOLANT UNIT | |
| - Coolant unit dimensions (w x d x h) | 1,150mm x 500mm x 670mm |
| - Coolant unit weight | 118kg |
| - Coolant pump power | 0.12kW |
| - Coolant tank capacity | 100 litres |
| - Coolant ump flow rate | 50 l/min |
| ELECTRICAL REQUIREMENTS | |
| - Electrical Requirements | 3 phase, 415v or 220v |
| OPTIONAL EXTRAS - NOT A COMPLETE LISTING | |
|---|---|
| 1. Inverter for wheel spindle speed control | Available |
| 2. CF10 Coning & Indexing Fixture - Face plate for adapters - Maximum diameter - Maximum tool length |
Yes - further information available 90mm for HSK, ISO,MK, Hydraulic chucks etc. 150mm 160mm from face plate |
| 3. CF14 Coning & Indexing Fixture - Face plate for adapters - Maximum diameter - Maximum tool length |
Yes - further information available 105mm for HSK, ISO,MK, Hydraulic chucks etc. 220mm 160mm from face plate |
| 4. KF2 - 'K' land attachment - For creation of K lands on PcBN tipped inserts |
Available |
| 5. Centralised lubrication | Available |
| 6. Tool nests | Many types available; tilting, round, square, V etc. |
| 7. Left hand tool post | Available |
| 8. AD1 - Digital pivot angle read-out | Available |
| 9. Auto tool air-blast | Available |
| 10. Grinding wheels | Available |
| 11. Wheel arbors | Available |
© 2016 COBORN ENGINEERING COMPANY LIMITED
Chesham Close, Cedar Road, Romford, Essex RM7 7PJ, UK
Tel: +44 (0)1708 744666 // Fax: +44 (0)1708 725187 // Email: sales@coborn.com
Registered Office: Spencer Fellows, 169 New London Rd, Chelmsford, Essex CM2 0AE, UK
Registered in England & Wales // Company No.: 376609 // VAT No.: 246 0723 74
Chesham Close, Cedar Road, Romford, Essex RM7 7PJ, UK
Tel: +44 (0)1708 744666 // Fax: +44 (0)1708 725187 // Email: sales@coborn.com
Registered Office: Spencer Fellows, 169 New London Rd, Chelmsford, Essex CM2 0AE, UK
Registered in England & Wales // Company No.: 376609 // VAT No.: 246 0723 74