Ewellix CAMT20, Installation, Operation And Maintenance Manual

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20
CAMT 20
NOTE
If the bore will be used as the pivot point, it is recommended to
use a DIN 6325 cylinder pin with Ø 8h7 (+0,000/-0,015) to have a
loose fit.
In case the pin should be fixed in the lead screw bore and
the pivot point is provided by a customer designed clevis, it
is recommended to use a DIN 6325 cylinder pin with Ø 8m6
(+0,015/+0,06) to have a transition fit.
4.4.2 Clevis attachments
The clevis attachment set is composed of specific front and
rear interfaces.
The clevis front interface (⮑ fig. 10) includes an additional
head that is put at the extremity of the spindle and that fea-
tures a Ø12H7 (+0,018/-0.000) bore. An elastic pin is cross
fitted through the clevis head and spindle to ensure the
clevis head will not get lose over time.
Fig. 10
NOTE
If the bore will be used as the pivot point, it is recommended to
use a DIN 6325 cylinder pin with Ø 12h7 (+0,000/-0,018) to have
a loose fit.
In case the pin should be fixed in the bore and the pivot point is
provided by a customer designed clevis, it is recommended to
use a DIN 6325 cylinder pin with Ø 12m6 (+0,018/+0,007) to have
a transition fit.
The rear interface (⮑ fig. 11) is composed of 2 bushings
with Ø 20H7 (+0.021/0.000) that are fitted to the protection
tube.
As standard, this bushings are located under the spindle so
that it is possible for a pin to totally cross the protection
tube. Optionally, these bushings can be located higher on
the tube, toward the gearbox. In this case, the mounting can
only be in a trunnion configuration.
It should be noted that in order to keep a low play configura-
tion, the clevis pins used both for the front and rear attach-
ments should be of matching dimension/tolerance.
Fig. 11
NOTE
It is recommended to use a DIN 6325 cylinder pin with Ø 20h7
(+0,000/-0.021) to have a loose fit.
4.4.3 Degree-of-freedom (1-DOF)
brackets
The front bracket is attached to the CAMT spindle through a
Ø8 dowel pin and allows for a single axis movement only,
around this same pin (⮑ fig. 12). The dowel pin is fixed rela-
tively to the spindle and the bracket swivels around it, sup-
ported by 2 bushings.
The connection to the upper structure is done through 2
standard M10 screws.
Fig. 12