Product Description
Liebherr L 3002 Cnc gear hobbing machine [Complete rebuild and upgrade ] L 3002 (1982)
MACHINE REF :12925
Machines For Sale — . Gear, Hobber (CNC)
MAKE :Liebherr L 3002 Cnc gear hobbing machine [Complete rebuild and upgrade ]
MODEL :L 3002
YEAR OF MANUFACTURE :1982
CONTROLLER :New OMRON Trajexia motion controller, CJ2m PLC, an
SPECIFICATION :Liebherr L 3002 Cnc gear hobbing machine [ Max wheel Gear Ø 3500 mm ]
Max wheel Gear Ø 3500 mm
Module + 40
Module –
CNC type New OMRON Trajexia motion controller, CJ2m PLC, and SIE
Max spindle speed
Max gear width
Max workpiece weight 43 kg
Motor power 63 kW
——————-
Length x width x height – × – × –
Weight –
Worked power hours
State like new
At local norms ———
Status under power
DESCRIPTION :Machine suitable for heavy-duty Hobbing of external spur & helical gears, pinions, splines,
worm gears, and other work-pieces of similar profile up to 138 (3500mm) diameter, with
motorized hob-head providing a maximum of 40 Module (.5 DP) cutting capability in steel
Serial No. 2301/01 (New in 1981/82 electrical up-grade 2016)
The machine was in storage for a number of years and has seen extremely few hours of actual use. The
machine is in superlative mechanical condition throughout, and has recently been fitted with new
generation electrics, overhauled motors, and programmable logic control for axial and radial feeds, and
selectable fully automatic cutting cycles. The machine features can be described as follows:
EQUIPMENT / FEATURES:
Single piece base machine bed including wide, fixed position work-table
Single start index worm drive in special-execution, index worm-wheel of special bronze
Machine main stanchion with infinitely variable radial feed, automatically clamped
while in working position
Programmable hobbing depth; shut-off precision: 0,01mm
Hob slide w/steplessly variable mechanical feed drive. Backlash-free drive to hob slide for
conventional or climb hobbing thru preloaded ball-screw.
Hob spindle motor (DC) variable speed, geared to 75kW main drive motor
Differential mechanism for hobbing of helical gears
Universal, heavy-duty hob-head for radial, axial, and tangential hobbing. When hobbing radially or
axially, the tangential slide is automatically clamped. The tangential slide is positioned thru a servomotor,
linked to work-table.
Power motorized swivel of hob-head
Rapid traverse for axial, tangential, and radial movements
Complete hydraulic installation with outboard hydraulic power plant
Hydraulic table relieving arrangement
Outer support stanchion for work holding bushings. The steady support in hydraulically positioned
and in its uppermost position may be swung out of the way. In working position it is clamped in
place. For workpieces over 1700mm diameter, the outer-support stanchion may be hydraulically
retracted on its sub-base
Adjustable clam-shell steady-rest type tailstock for support of for the cutting of
heavy pinions in vertical execution
Automatic pressure lubrication and oil bath lubrication system
Automatic central lubrication for all sliding ways, w/telescoping stainless steel
way-guard covers for axial and radial slides
Cooling systems with splash guards, coolant tank capacity: approx. 1,000 liters; delivery: 200
litres/minute
( electrics and control features )
Complete electrical equipment installation (all motors professionally overhauled 2016)
(currently arranged for 415 volt, 3-phase, 50Hz operation)
New OMRON Trajexia motion controller, CJ2m PLC, and SIEMENS MP277 HMI
with operators conversational data input for
control and programming of cycles
Free standing control cabinet with new electrical switch-gear
Pendant control station with SIEMENS HMI controls for all working elements
Conventional, Climb, and Tangential hobbing capability
Multi-cut program for the automatic setting of the hobbing depth position and change of hob
speed between No. 1 and No. 2 cut when axial hobbing, including reduction of hob slide travel
for the 2nd
cut, ( programmable for up to five cuts ).
Automatic Single-Index milling for spur and/or helical gears using disc-type form
milling cutters, or inserted carbide-blade cutters
Crowning and taper hobbing via point to point
( additional equipment )
Machine with chip transporting/conveying system
Operators catwalks alongside the length of the machine and main column
with operators stairway
Four (4) hob arbors, (1-1/2, 2, 2-1/2, and 3 diameters), hardened & ground,
complete with rings and lock-up nuts
Large assortment of index change gears
Description
Liebherr L 3002 Cnc gear hobbing machine [Complete rebuild and upgrade ] L 3002 (1982)
Price: Write Us
Location : United Kingdom
Quantity : 1
Availability : 14 Jun 2017
