The machines SF 800 CNC are modern with 6 control axes
production and solid construction, designed with using modern technology. The machine are
suitable for series or single-piece production for hobbing of spur gears with straight and
helical teeth, chain wheels, worm wheels in the radial hobbing method, spline shaft as
well as for generating of other types of gearing, appropriete hobbing with dividing
attachment. For mass production are machines supply with set up for a given technological
job.
The machine have a fixed main stand, sliding table and support stand
with a live centre. The bed it´s one cast-iron block anchored itno the ground. The
controling systém used are CNC systems from Siemens, Fanuc, Telemecanique or Mitsubishi
equiped with original program software.
A number of construction elements have been used during the design of
the machine for increasing preceseness, eliminating backlash or noise reduction, whereby
the models
SF 800 CNC it´s the latest development in gear hobbing machine
produced in the Czech Republic continuously for over the last 50 years.
Work method:
- gear hobbing of external involute and non-involute gears
- gear hobbing of spur and helical gears
- hobbing of worm wheels by the radial and tangential method
- hobbing with long. modification
- barrelling
- ball gear (clutch)
- straight line
- hobbing with cross modification determined by the tool
- hobbing with selectable automatic tool shifting
- automatic correction of tooth to tooth value
- stepless hob speed and feed
- hobbing with dividing attachment
Work cycles:
- Repeated square - shaped cycle
- Square - shaped cycle
- L shaped cycle
- Orthodox or climb method
- Straight cycle
- Degress - progress method
- hobbing with tangential method
Specification of gear hobber SF 500 CNC
| Maximum module cut in steel |
12 |
| Max. diameter of spur gear |
800 mm |
| Max. helix angle of teeth |
? 45 |
| Accuracy of test gear |
DIN 7 |
| Vertical adjustment of hob head |
530 mm |
| Diameter of work table |
800 mm |
| Diameter and depth of table bore |
110 / 500 |
| Clamping taper in hob arbor |
Morse 5 / ISO 50 |
| Min./Max distance between workpiece and hob axes |
20 / 350 mm |
| Min./Max. distance between hob axes and surface of table |
195 / 725 mm |
| Range of hob speed - stepless |
450 rot./min |
| Vertical (axial) hob feed - stepless |
0,01 - 5 mm/rot. |
| Horizontal hob feed - stepless |
0,01 - 5 mm/rot. |
| Tangential hob feed - stepless |
0,01 - 5 mm/rot. |
| rapid traverse: |
|
| Vertical |
2000 mm/min |
| Horizontal (radial) |
2000 mm/min |
| Tangential |
1000 mm/min |
| Diameters of milling arbors |
27, 32, 40, 50 mm |
| Max. length/diameter of hob: |
200 / 200 mm |
| Overall dimension of machine: |
|
| length |
3700 mm |
| width |
1860 mm |
| height |
3180 mm |
| Dimension of switchboard cabinet |
|
| length |
1400 mm |
| width |
600 mm |
| height |
2100 mm |
| Weight of machine |
11500 kg |
| Max. weight of workpiece incl. fixture |
650 kg |
| Power of main drive motor |
12,0 kW |
| Total input required |
18,5 kVA |
| Max. dimension of barrelling |
0 - 10 mm |
| Number of control axes |
6 |
| The control system NUM 1060 HG,
SINUMERIC 840 D |
|
For more details you can download technical
description of the SF 800 CNC machine.
