Festo CLR User manual

en Operating
instructions
8072624
2017-05e
[8072626]
linear/swivel clamp
CLR

CLR
2Festo – CLR – 2017-05e
Original instructions
Identification of hazards and instructions on how to prevent them:
Danger
Immediate dangers which can lead to death or serious injuries
Warning
Hazards that can cause death or serious injuries
Caution
Hazards that can cause minor injuries
Other symbols:
Note
Material damage or loss of function
Recommendations, tips, references to other documentation
Essential or useful accessories
Information on environmentally sound usage
Text designations:
 Activities that may be carried out in any order
1. Activities that should be carried out in the order stated
– General lists
èResult of an action/References to more detailed information

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Festo – CLR – 2017-05e English 3
Linear swivel clamp type CLR-...
1 Operating elements and connections
For all available product documentation èwww.festo.com/pk
1
2
3
4
5
67
1Compressed air connection for clamping
2Guide bolt for motion control of the
linear and swivel movements
3Compressed air connection for releasing
4Groove for proximity switch
5Clamping finger set with clamping
screw (not included in delivery)
6Spanner flat on the piston rod
7Flange screws with threaded holes for
fastening
Bild 1

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2 Function
When the compressed air connections are
pressurized alternately, the piston rod of the
linear-swivel clamp type CLR-... moves in and
out. On the piston rod there is a guide sleeve
with three different grooves. A guide bolt in
the housing grips into the groove. By means
of the special shape of the grooves, the bolt
transfers the following movements to the
piston rod:
– swivel-linear movement of 90° in a
clockwise direction (Bild 2)
– swivel-linear movement of 90° in an anti-
clockwise direction (Bild 3)
– linear movement (with CLR-40-... to
CLR-63-..., see Bild 4).
The piston rod transfers the swivel and linear
movements to the clamping finger. When the
piston rod retracts, the clamping finger
clamps material against a fixed stop. The
end positions are scanned in the sensor
grooves on the cylinder profile.
3 Application
The CLR-... has been designed for friction-locked clamping and holding of
construction parts.
Please note
Torques which affect the internal guide sleeve will damage the CLR-...
SWith all assembly work make sure that the maximum torque on the guide
sleeve is not exceeded (see chapter “Mechanical installation”).
Bild 2 Bild 3
Bild 4

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Festo – CLR – 2017-05e English 5
4 Transport and storage
STake into account the weight of the product (plus clamping finger and fasten
ing elements).
Depending on the design the CLR-... can weigh up to 2.7 kg.
SEnsure the following storage conditions:
– short storage times and
– cool, dry and shady storage locations to prevent corrosion.
5 Conditions of use
Please note
Incorrect handling can result in malfunctions.
SEnsure that the specifications in this chapter are always observed.
This is the only way to ensure correct and safe operation of the product.
SCompare the limit values specified in these operating instructions with your
current application (e.g. pressures, forces, torques, temperatures, masses,
speeds, clamping cycles).
Only if the loading limits are observed can the CLR-... be operated in
accordance with the relevant safety guidelines.
SObserve the specifications applicable to your location, as well as all local and
national laws and regulations.

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6Festo – CLR – 2017-05e English
SRemove the packing except for the adhesive labels on the compressed air
connections (to prevent dirt).
It is intended that the packaging be recycled on the basis of its constituent
materials (exception: oiled paper = other waste).
SObserve the ambient conditions at your location.
SMake sure there is a supply of correctly prepared compressed air (see chapter
“Technical specifications”).
SUse the same medium composition throughout the service life of the product.
Example:
– selected: non-lubricated compressed air,
– continue to use: non-lubricated compressed air.
If switching from lubricated to non-lubricated compressed air:
SObserve the wear of the CLR-...
If the service life lubrication is washed out, the CLR-... will wear considerably.
SGradually pressurise the entire system until the operating pressure is reached.
This ensures that all actuator movement is controlled.
The soft-start valve type HEL-... or HEM-.... can be used to build up the pres
sure gradually.
SUse the CLR-... in its original state without undertaking any modifications.

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Festo – CLR – 2017-05e English 7
6 Installation
Mechanical installation
Please note
When the fastening screw of the clamping
finger is clamped and released, high torques
can damage the guide sleeve in the cylinder
(e.g. by tightening or counter holding).
SWhen fitting or removing the clamping
finger, always use a spanner wrench for
counter holding (see “Fitting the
clamping finger”).
STreat the clamping finger with great care.
The following loadings are not permitted:
– heavy loads with a long lever arm
– sudden knocks
– high torques (especially on the guide
sleeve).
SMake sure that the maximum permitted loadings are observed during
operation:
– the tightening torques when fitting the clamping fingers
– the values for force F and torque M (see chapter “Technical specifications”).
Fitting the clamping finger
Please note
Torques which affect the internal guide sleeve will damage the CLR-...
SFit the clamping finger first, before fitting the clamping cylinder into the
system. In this way you will prevent torques rom affecting the internal guide
sleeve.
Bild 5
Bild 6

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8Festo – CLR – 2017-05e English
1. Place the clamping finger on the cone of
the piston rod.
2. Screw the fastening screw into the
threaded hole of the piston rod until the
clamping finger can still just be turned.
3. Fix the piston rod at the spanner flat 6
with a spanner wrench (see Bild 8).
4. Turn the clamping finger with a second
spanner wrench until the alignment
corresponds to the individual application.
5. Tighten the fastening screw with the
following torque:
For counter holding, the maximum
permitted torque on the guide sleeve
must not be exceeded.
CLR-... 12 16 20 25 32 40 50 63
Thread M3 M4 M6 M6 M8 M8 M10 M10
Width across flats (A/F)
– clamping finger screw
– piston rod
2.5
5
3
7
5
10
5
10
6
13
6
13
8
17
8
17
Tightening torque of clam
ping finger screw [Nm]
1.2 3 12 12 24 24 47 47
Maximum permitted torque
on the guide sleeve [Nm]
2 3 6 10 20 20 30 50
Bild 10
Bild 7
Bild 8
6
Bild 9

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In order to modify the swivel movement:
1. Unscrew and remove completely the
guide bolt from the cylinder housing of
the CLR-... The piston rod can then be
turned freely with the clamping finger.
2. Swivel the clamping finger to the desired
groove in the guide sleeve.
The search for the groove is facilitated if a
bolt is pushed into the threaded hole in
the guide bolt at the same time. Please
refer to the following table for the
necessary bolt diameter.
3. Screw the guide bolt in again completely. When doing this note the following
points:
– Check that the seal on the guide bolt is positioned correctly.
– The guide bolt must be locked with Loctite 24333.
– Observe the tightening torque as specified in the following table:
CLR-... 12 16 20 25 32 40 50 63
Bolt diameter [mm] 2.5 2.9 5.9 5.9 5.9 6.9 7.9 8.9
Thread M4 M4 M8 M8 M10 M10 M12x1 M12x1
Width across flats
(A/F) (guide bolt)
3 3 5 5 6 6 8 8
Tightening torque [Nm]
(+20 %)
2.5 2.5 6 6 20 20 40 40
Bild 12
Bild 11

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Fitting the CLR-...
SPlace the CLR-... so that no objects project into the swivel range of the
clamping finger.
SSelect one of the fastening possibilities listed in the following table.
Double screw connector with foot
fastening type HNA-... in the threaded
holes of the cover screws
With four screws in the threaded
holes of the cover screws:
–with flange mounting type FNC-...
–direct fastening
Bild 13
The different product sizes have connector threads of the following design and
with the following tightening torques:
CLR-... 12 16 20 25 32 40 50 63
Connecting thread M4 M4 M5 M5 M6 M6 M8 M8
Tightening torque [Nm] 3 3 5 5 8 8 23 23
Bild 14
STighten the screws evenly.