SCHUNK ROTA THWvario, Сборка и руководство по эксплуатации, Страница: 35 / 77

Assembly
01.00|ROTA THW vario |en-US 35
Disassembly of the vario D
The lathe chuck is disassembled in the same way but in the reverse
order.
After cleaning and oiling, we recommend storage in a closed box.
NOTICE
The maximum axial actuating force must not exceed the
following values.
Type Max. actuating force
Vario D0 10 kN
Vario D1 10 kN
Vario D2 20 kN
Vario D3 25 kN
Checking the concentricity and axial run-out
The achievable accuracy of the vario D depends mainly on the
condition of the taper and flat surface in the power chuck. Here,
the influence of wear marks and damage is a factor as well as
contamination. To check the accuracy, the clamping bolt and the
segmented clamping sleeve must be removed.
Unscrew and remove the clamping bolt with a hexagon socket
wrench. Pull down the segmented clamping sleeve.
Remove the workpiece stop by removing the screws.
For the axial run-out, place the dial gauge on the axial stop face of
the stop.
For the concentricity, place the dial gauge on the outer taper of
the mandrel body.
If there is no dirt on the fitting surface, an attempt can be made to
obtain an optimum concentricity value by twisting the vario on the
lathe chuck by 120° in each case.
Furthermore, concentricity can only be achieved by improved
alignment of the power chuck.
If necessary, the mounting position of the vario must be marked to
a specific position to achieve optimum repeat clamping accuracy.