Description • 61
Axis Sliding System
The axis sliding system consists of air bearings that ensure the support and friction–free movement of the
moving parts of the axes (main carriage, central carriage and Z-rail).
The moving parts are supported by a flow of compressed air, which comes from the pneumatic control unit.
The flow supplies the bearings so as to form an air cushion between the bearings and the guideways.
Do not perform any operation on the components of the drive system apart
from those specified in “Maintenance” on page 68. Operations performed
incorrectly may cause operating problems (for example, blocking), and
deterioration in the machine’s precision.
Central Carriage (X Axis)
The central carriage (X axis) is guided by six air bearings that run along four guideways machined into the
surfaces of the beam. Three bearings run along the two guideways positioned on the front surface of the
beam, another two run on the lower flat guideway, while the last bearing runs in the tilting guideway
machined into the rear edge of the beam.
Main Carriage (Y Axis)
The main carriage (Y axis) is guided by seven air bearings that run along guideways machined into the
granite work table.
The bearing of the left leg runs on the flat guideway machined directly into the surface of the work table,
while the three pairs of bearings applied to the bottom end of the right leg run on the three surfaces of the
swallow (dove) guideway machined into the right side of the work table.
Z-rail (Z Axis)
The Z-rail (Z axis) is guided by nine air bearings fixed to the central carriage. There are no dedicated
guideways in that the surfaces of the Z-rail are used as guideways.
The rear surface of the Z-rail runs along three air bearings, while each of the remaining surfaces runs on
two air bearings.
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