Hainbuch MANOK, Руководство по эксплуатации

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MANOK plus
Use and limits of use
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Since the size 65 clamping head chuck can exert a maximum
radial clamping force of
𝐹
𝑟𝑎𝑑 𝑚𝑎𝑥
= 105𝑘𝑁
, this satisfies Prin-
ciple 1.
In this example, Principle 2 does not apply because work is
performed without a tailstock in this case.
Principle 3 would also be satisfied, because the calculated
cutting force of
𝐹
𝑐
= 1226𝑁
is well below the limit of
𝐹
𝑐 𝑚𝑎𝑥
=
5
0
00𝑁
.
On the other hand, Principles 4 and 5 are immaterial in this
example because both principles only need to be considered
in relation to radial drilling operations.
Result of the sample calculation
All limits have been checked.
The axial actuation force is proportional to the radial clamp-
ing force and interpolation can therefore be used to deter-
mine this on the basis of the values for
𝐹
𝑎𝑥 𝑚𝑎𝑥
and
𝐹
𝑟𝑎𝑑 𝑚𝑎𝑥
,
as indicated on the clamping head chuck, or you can consult
the clamping force diagram [see »Clamping force diagram«
chapter].
When full axial force is exerted on the clamping head chuck
with
𝐹
𝑎𝑥 𝑚𝑎𝑥
= 45𝑘𝑁
, nominal radial
105𝑘𝑁
forces are being
applied to the workpiece.
In the example calculated here, an axial force of at least
𝐹
𝑎𝑥
= 43𝑘𝑁
must be applied, resulting in a radial clamping
force of
𝐹
𝑟𝑎𝑑
= 99𝑘𝑁
.
This satisfies condition
𝐹
𝑟𝑎𝑑
≥ 𝐹
𝑟𝑎𝑑 𝑒𝑟𝑓
.
Machining can then be performed.
The value is close to the limit value. This ensures that the
clamping head chuck is in good condition in terms of the level
of contamination.
It is advisable to conduct a check on radial clamping force
using an appropriate clamping force meter before the ma-
chining operation. The values established must lie within an
appropriate range for the rotational speed [see »Clamping
force diagram« chapter].