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  9. CERATIZIT KOMdrive User manual

CERATIZIT KOMdrive User manual

39924 21320-1T-09/18 Printed in Germany ·
12650700-1T 05-2020
2H 10/2021
TEAM CUTTING TOOLS
KOMdrive
Operating Instructions
1. Application
Maximum permissible rpm, stroke, tool weight, tool center point
and pressure for the built-in stops has been set for the different
types and sizes of facing heads. When calculating the necessary
operating force on the drawbar, these need to be taken into
consideration, in addition to the necessary cutting force. Should
the calculation exceed the allowed pressure of the stops, changes
have to be made to the RPM or stroke to a smaller rate, respectively
when the stops are in a precise position in the crossfeed cylinder,
a lowering of the force on the stops is possible. When the facing
heads are used with NC control, the stops do not function; the
maximum cutting force is determined by the loading capacity of the
gear cutting element.
2. Acceptable coolant
When using facing heads with coated slideways, aggressive cool-
ants which have large amounts of sulphur and chlorine cannot be
used.
3. Maintenance
For warranty and liability reasons repairs or overhauling of facing
heads should only be carried out at KOMET. After disassembly all
parts are inspected thoroughly for re-use and if necessary replaced
with new parts. Repaired facing heads leave our assembly prac-
tically as new in the technical sense. Allthough we have a repair
service, it is advisable to purchase a replacement head to avoid
production standstill. As preventative measure we recommend a
regular inspection of the Facing Head at intervals of about 5 000 –
10 000 operating hours.
We also offer maintenance contracts under which we keep spare
parts in stock and guarantee prompt maintenance work.
4. Central lubrication
Here the lubrication is carried out by means of the central lubrica-
tion unit on the machine or via a local lubricating unit. The following
details refer to the various facing head sizes; these must be com-
plied with as part of KOMET‘s warranty and liability undertakings:
• Amount of oil: according to PK-size 0,2 – 1,5 cm³
• Frequency of lubrication: every 5 – 15 minutes
• Necessary pressure: 15 – 20 bar
The pressure at the application point to the facing head must be
maintained for approx. 10 – 20 seconds and set by means of a time
switch. Length and cross section of the lubrication supply pipe have
to be considered.
5. Hand/Nipple lubrication
The facing head has to be lubricated several times per shift and
at the end of each shift. When the machine has been standing
idle for a long time (weekend, vacation), it has to be lubricated at
machine start-up. The amount has to be measured in such a way,
that the lubricant is visibly seen coming out of the slide ways. Apart
from supplying the head with the actual lubricant, expulsion of the
coolant also has to be ensured. The required amount of lubricant
depends on the size of the facing head and the RPM at which the
head runs. The lubrication frequency must be adjusted to these
requirements and, where necessary, comply with the guidelines for
central lubrication.
6. Lubricants
We recommend Mobilux EP004 liquid grease for all speed ranges.
Furthermore, it is also possible to use slideway oils according to
DIN 51502 with the identier CG-L68 or CG-L220 (CG-L220 is pre-
ferred for speeds from 700 rpm).
The relevant commercial names of the mineral oil companies for
slide-way oils can be ascertained from the machine lubrication
instructions.
These lubrication instructions apply to all generating tools supplied
by KOMET.
Descriptions and notes on application conditions for facing heads
shown in the „FEED-OUT TOOLS KOMdrive“ brochure should also be
taken into account, together with those shown in tool layouts and
other publications.
See further languages:
Hinweis auf Homepage nur
in gedruckter Version
TEAM CUTTING TOOLS
KOMdrive
Assembly using stud bolt per DIN 939 Assembly using cylinder head screws per ISO 4762
Assembly using threaded insert/stud bolt
with PKE 160-..-101-QA-IK-F
Auxiliary aids for assembly/removal
of the threaded insert
When assembling the stud bolt provided, it is necessary to install threaded
inserts in two holes.
The threads are adapted to the correct size through usage of the threaded
inserts provided.
Threaded insert assembly:
Observe direction (position of the slot). Screw in the threaded insert until
slightly recessed or ush in accordance with the assembly instructions, and
secure with medium-tight screw lock.
Use the specied tools or other suitable auxiliary aids to screw in the threaded
inserts.
Stud bolt assembly:
When assembling the stud bolt, make sure that it is screwed into the threaded
insert with the short thread length.
A failure to observe this instruction will result in housing damage!
When assembling the stud bolt, make sure that it is screwed into the housing
with the short thread length.
A failure to observe this instruction will result in housing damage!
Stud bolt DIN939 Washer DIN125-B
Hex nut ISO 4035 ( M8 → max. 12 Nm / M10 → max. 20 Nm)
Intermediate ange
Threaded insert
When assembling with cylinder head screws, the optional threaded inserts
must not be tted; remove if necessary.
M10x60 → max. 35 Nm
M10x80 → max. 35 Nm
Screwing in by hand usually takes place with the hand tool via the internal
thread of the threaded insert:
Screw on the threaded sleeve, note the slot position! Make sure that the screw
does not point into the cutting edge geometry after locking with the nut.
Screw in the threaded insert up to approx. 0.1 – 0.2 mm below the tool surface
(in case of makeshift assembly using screw and nut, screw in the threaded
insert until ush as a minimum). Ensure vertical assembly.
Counter-lock the nut, otherwise the threaded insert will be unscrewed again.
Then unscrew the hand tool or screw/nut.
Makeshift screwing in with
screw/nut:
Screw in using hand tool:
Assembly variants
Intermediate ange
Stud bolt DIN939
Washer
DIN125-B
Hex nut ISO 4035 ( M8 → max. 12 Nm / M10 → max. 20 Nm)

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