Technical description
Item no. 10301100, Revision 01
13 ( 40 )
5.3.1
Cooling via spindle holder
Example of design:
Air-cooled spindle holder
Example of design:
Liquid-cooled spindle holder
To increase the power of the HF spindle, the heat generated must be dissi-
pated via the spindle holder (optional accessory).
If the spindle holder is to be produced in-house:
Ü
Contact
Nakanishi Jaeger GmbH
.
Ü
Request the tolerances and production plan for the spindle holder.
Ü
Produce the spindle holder from a thermally-conductive material (e.g. alu-
minum).
Ü
Observe the dimensions of the clamping range in the Technical Specifica-
tions
section. Make sure that the HF spindle is enclosed by the spin-
dle holder to the specified length.
Ü
Add cooling fins or holes (greater heat dissipation) to the external surface
of the spindle holder.
5.4
Sealing air
For guidelines on air quality,
see "Air purity classes (ISO
8573-1)
" section.
The sealing air prevents foreign bodies such as chips and liquids (e.g. emul-
sions) from entering the HF spindle.
Ü
Check that air escapes at the front between the housing and the rotating
parts of the HF spindle.
5.5
Taper cleaning
Taper cleaning prevents chips and liquids from entering the shaft during a
tool change and causing contamination and damage to the inner taper and
the clamping system.
The taper cleaning is integrated in the pneumatics system for the tool change.
This means that no additional connections are required.
q
Blow air through collet during tool change
5.6
Pneumatic tool change
For guidelines on air quality,
see "Air purity classes (ISO
8573-1)
" section.
The tool change or tool taper change is performed pneumatically.
During this, a mechanism is operated inside the HF spindle which clamps, re-
leases, or ejects the tool taper or collet.