Gear Shaping Machine

LIEBHERR WSC2000

max. dia. of teeth cutting 2000 mm
workpiece dia. 2700 mm
Diameter of the table 1500 mm
max. module 22
Control 840D
turning speeds 3,5 U/min
table load capacity 20000 KG
Distance of shafts 70...1220 mm
Stroke length 30...330 mm
no. of strokes 10...200 Hub/min
total power requirement 138 kW
weight of the machine ca. 38 t
dimensions of the machine ca. 11x5 m
machine:
Full CNC machine with electronic rolling coupling for C- and D-axes and digital INDRAMAT drive technology.
Stiff machine bed in welded construction.
Radial axis (X-axis) with hardened guideways, sliding guide with wraparound,
longitudinal guide with roller recirculating shoes.
Ground preloaded ball screw with play-free preloaded nut.
Digital AC drive technology with play-free gearbox.
Linear measurement system for radial positioning.
Freestanding machine table with electrohydraulically play-free preloaded double worm gear, part wheel diameter 1365 mm, hydrostatic axial and radial bearings, automatic compensation of the workpiece weight.
Table hole with a diameter of 500 mm through and open at the bottom.
Water-cooled digital AC servo motors.
The machine is to be installed on a foundation.

Machine stand:
as a highly rigid cast construction for axial travel of 1200 mm.
Axial axis (Z-axis) with hardened guideways, slide-guided, longitudinal guide and wraparound with roller recirculating shoes.
Ground ball screw with play-free preloaded nut.
Digital AC drive technology.
Encoder for axial positioning.


Shapping head:
SK 4.1 with hydraulic NC servo drive for impact spindle movement
and cutting wheel lifting, stroke length 330 mm, impact spindle diameter 160 mm.
Hydrostatically supported impact spindle, linear guide and lateral guide for the lifting mechanism.
Maximum tool diameter 300 mm.
Drive motor power 30 kW.
Stroke rates from 10 - 200 DH/min, stroke speed from 5 - 45 m/min.
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Impact spindle speed for working and return stroke independently programmable.
In the cutting area, the spindle speed remains constant.
Maximum cutting wheel speed 10 rpm, digital AC drive technology.
Cutting wheel lifting correction for internal and external gearing manually reversible.
Lateral offset of the impact spindle axis up to 50 mm from the machine center to
prevent return stroke collision of the cutting wheel, manually adjustable.