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CNC High Speed Dry Cutting Gear Hobbing Machine
GHE-260CNC6 GHE-260CNC7
Machine Summary
The model GHE-260CNC6 high speed & dry cutting CNC gear hobbing machine is of 6 axes one with 4 axes coordinated control. The model GHE-260CNC7 high speed & dry cutting CNC gear hobbing machine is of 7 axes one with 4 axes coordinated control. They adopts dry cutting for the environmental protection and has the functions of chamfering and deburring. Based on the principle of generating method, and by electronic gearbox(EGB), these machines are designed to cut cylindrical spur & helical gears, dual & cluster gears, crowning or slightly tapered gears, splines, wormwheels, and sprochets etc. They are suited for the industries that produce the gears on a large scale production, such as automobile, motorcycle, textile machinery, crane machinery and lift, etc.
Performance and Feature
1. The model GHE-260CNC7 high speed & dry cutting CNC hobbing machine is of 7 axes with 4 axes coordinated control. Its CNC axes are:
- A-axis--hob head swivel motion;
- B-axis--hob spindle rotary motion;
- C-axis--worktable rotary motion;
- X-axis--radial feed motion;
- Y-axis--tangential feed motion;
- Z-axis--axial feed motion;
- U-axis--mechanical hand rotary motion;
- Each motion axis is driven independently by an AC servo motor.
2. Dry-cutting process for green environmental protection is adopted. Tooth chamfering and deburring functions are integrated in the machine.
3. Both hob spindle and work spindle transmission system are equipped with clearance eliminating and damp adjusting mechanisms to ensure their rigidity and accuracy.
4. Hardened steel guideways and linear recirculating roller guidance system are used for each linear motion part, imported pre-loaded precision ball screw pairs are used, imported super precision and high rigidity compound bearings are used for supporting the ball screws. Therefore, the machine has high rigidity and well suited for high speed and heavy-duty cutting. For cutting the workpiece with module about 5mm.
5. Equipped with internal and external fully-enclosed guards, perfect chip conveyor and dust collector.
6. This machine embodies the developing trend and design concept of manufacturing industry in environmental protection, automation, flexibility, high speed, high efficiency, and function combination.
7. It is suited for cutting cylindrical spur & helical gears, worm wheels, slightly tapered and crowning gears, splines and sprockets, etc.
Technical Parameters
| Specifications | Units | GHE- 260CNC6 | GHE- 260CNC7 |
| Max. workpiece dia. | mm | 260 | 260 |
| Max. module | mm | 6 | 6 |
| Max. axial travel | mm | 350 | 350 |
| No. of teeth | 4-1000 | 4-1000 | |
| Max. hob dimension(dia.*length) | mm | 160*230 | 160*230 |
| Max. chamfering cutter diameter | mm | 220 | |
| Spindle taper bore | ISO40 | ISO40 | |
| Worktable surface diameter | mm | 245 | 245 |
| Max. hob head swivel angle | deg | ±45 | ±45 |
| Center distance between hob and worktable | mm | 30-300 | 30-300 |
| Distance between hob axis and worktable surface | mm | 125-475 | 125-475 |
| Distance between tailstock center end face and worktable surface | mm | 335-785 | 460-760 |
| Max. hob tangential travel | mm | 180 | 180 |
| Max. spindle speed | rpm | 1500 | 1500 |
| Spindle speed of chamfering cutter | rpm | 18/75 | |
| Max. worktable speed | rpm | 100 | 100 |
| Radial rapid travel speed | mm/min | 3000 | 3000 |
| Tangential rapid travel speed | mm/min | 2000 | 2000 |
| Axial rapid travel | mm/min | 3000 | 3000 |
| Linear coordinate resolution of CNC axis | mm | 0.001 | 0.001 |
| Rotary coordinate resolution of CNC axes | deg. | 0.001 | 0.001 |
| Main motor power | kw | 22 | 22 |
| Total power | Kva | 50 | 55 |
| Main machine weight | kg | 15000 | 17000 |
| No. of cases | 2 cases in total | 2 cases in total |
Standard Attachments
- Φ40 hob arbor assembly
- Washer for hob arbor
- Fully-enclosed guards
- Dust collector
- Oil chiller for lubricant
- Cylinder for clamping workpiece
- Hand hold unit
- RS232 interface
- Machine data storage disc
- 10.4" color display
- Dual-hand operation system
- Tools for installation
- Tools for adjustment
- Chip conveyor
- Vibration isolating pads
- Auto. hob arbor clamping device
- Metered lubrication system
- Workstay
- Hydraulic system
- Lubricating system
- Electrical cabinet with air conditioner
- Spare parts for one years maintenance
- Interlock safety switch
- Multi-color tower light for indicating machine status
- Chip cart
Optional Attachments
- Auto. loading & unloading system
- Auto. workpiece storage system
- Deburring device
- Independent hob adjusting device
- Hob arbor
- Workpiece fixture
- Worktable positioning mechanism
- Separated workpiece counter
- Auto. door
- Software for 4 axes coordinated control(B, C, X and Z axes)
- Parameterized programming
- Man-machine conversation programming
- Machining wormwheel with tangential method
- Function of cutting cone root spline
Commercial Components
- Germany SIEMENS840D or Japan FANUC 31i CNC system
- Germany INA or Switzerland SCHNEEBERGER linear recirculating roller guidance system
- Taiwan HIWIN ball screw
- Germany spindle bearing and other key bearings
- Japan NACHI or Taiwan Conpass hydraulic component
- Gearmany sealing component
- Taiwan HABOR oil chillers for lubricant
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