Festo DLGF, Instruction Manual

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7.2 Direct mounting
Fig. 4
1. Attach drive paying attention to the minimum number of screws used in pairs
(in this example: 2 pairs of screws):
– On the bores in the profile or cover (with DLGF)
– On the bores in the cover (with DLGF­...­W)
Maintain a maximum support clearance of 300 mm at all times. With
DLGF­...­W where necessary provide external support (e.g. from the machine
frame).
2. Tighten screws uniformly to the following tightening torque.
DLGF-... 20 25 32 40
Minimum number of pairs of screws depending on stroke
50 … 150 [mm] 2 2 2 2
200 [mm] 2 2 2 3
250 [mm] 2 2 3 3
300 [mm] 3 3 3 3
350 … 450 [mm] 3 3 3 4
500 … 600 [mm] 4 4 4 4
650 … 750 [mm] 4 4 4 5
800 … 1000 [mm] 5 5 5 5
Screw size and tightening torque
Bolt M4 M5 M6 M6
Tightening torque [Nm] 2.5 ± 10 % 5.8 ± 20 % 7.7 ± 20 % 8.2 ± 10 %
Tab. 1
7.3 Attachment
Fig. 5
NOTICE!
A warped attachment component bends the slide and shortens the service life of
the guide.
• Use an attachment component with an even surface.
Flatness with recirculating ball bearing: t = 0.01 mm
– Position the payload in such a way, that the break­down torque (parallel to the
axis of motion) and lever arm remains as low as possible.
– Avoid collisions of tool and payload with attachments.
– For attachment components with their own guide:
Adjust the guides of the tool and drive so that they are exactly parallel, or use a
connection that permits tolerance compensation. In this way, the guide is not
overloaded.
On DLGF-G in basic version:
• Attach mounting element (e.g. moment compensator DARD­L8) to slide with
screws.
Fig. 6
DLGF-G-... 20 25 32 40
Screw S M4 M4 M4 M4
Tightening torque M [Nm] 3 ± 10 % 3 ± 10 % 3 ,4± 10 % 3 ,4± 10 %
Tab. 2
On DLGF-KF with recirculating ball bearing:
• Fasten the attachment to the slide with screws and centring elements. Pay
attention to the maximum screw­in depth D and the tightening torque.
Attachment of mounting component from above/front:
Fig. 7
DLGF-KF-... 20 25 32 40
Mounting from above
Screw S
1
M4 M5 M5 M6
Max. screw­in depth D
1
[mm] 8.8 9.8 10.3 10.3
Tightening torque M
1
[Nm] 2.2 4.5 4.5 7.5
Centring H7 [mm]
Æ
7
Æ
9
Æ
9
Æ
12
Mounting from front
Screw S
2
M3 M4 M3 M4 M4 M5 M4 M6
Max. screw­in depth D
2
[mm] 7 7 7 9 7.5 10 8 10
Tightening torque M
2
[Nm] 1 2.2 1 2.2 2.2 4.5 2.2 7.5
Tab. 3
7.4 Mounting accessories
Position scanning with proximity sensors:
– Press proximity switch into the grooves
7 è 5.2 Layout.
– Avoid external influences from magnetic or ferritic parts in the vicinity of the
proximity sensors (maintain a minimum distance of 10 mm).
– To avoid contamination, use groove covers on all unused grooves
è www.festo.com/catalogue.
To set the speed:
– Use one­way flow control valves in the supply ports.
To secure the payload from dropping when a pressure failure occurs:
– Use check valves.