Festo EHMD-40-RE Series, Instructions For Use, Page: 2 / 4

6.2 Mounting the gripper fingers (EHMD-40-RE-GE-16)
Fig. 4 Mounting the gripper fingers
Mounting with bracket
Gripper fingers should be manufactured to be as short and lightweight as pos­
sible. Observe maximum permitted forces and torques on the gripper jaws.
1. Apply medium­strength screw locking agent to screws
3 .
2. Position gripper fingers on the bracket 1 .
3. Tighten screws 3 . Comply with the tightening torque.
4. Apply medium­strength screw locking agent to screws 2 .
5. Position bracket 1 on the gripper jaws.
6. Tighten screws 2 . Comply with the tightening torque.
Direct mounting with centring sleeves
Gripper fingers should be manufactured to be as short and lightweight as pos­
sible. Observe maximum permitted forces and torques on the gripper jaws.
1. Press centring sleeves
4 into the locating holes in the gripper jaws.
2. Apply medium­strength screw locking agent to socket head screws 6 .
3. Position gripper fingers 5 on the gripper jaws.
4. Screw in socket head screws 6 . Comply with the tightening torque.
EHMD-40-RE-... -GE-16
Centring hole [mm] 5
H9
Centring sleeve ZBH­5
Threaded hole M3
Max. screw­in depth in grip­
per jaw [mm] 4.6
Tightening torque [Nm] 1.2
Tab. 3 Mounting the gripper fingers
6.3 Attachment
Fig. 5 Dovetail slot
The product housing has a dovetail slot for mounting.
Accessories
è www.festo.com/catalogue.
7 Installation
7.1 Pneumatic installation
Pneumatic connections
Rotatable elbow connectors with fixed flow restrictors are provided for connecting
the tubing. The product must not be operated without flow restriction. If the grip­
per speed needs to be reduced further, this must be executed by external means.
1 Tubing connection (QS­4) with
integrated fixed flow restrictor
"open gripper"
2 Tubing connection (QS­4) with
integrated fixed flow restrictor
"close gripper"
Fig. 6 Pneumatic connection
Adjusting the gripping force
The gripping force can be adjusted by means of the external operating pressure.
There is no pressure regulator within the product.
Stroke sensing
The magnet in the pneumatic cylinder can be interrogated to sense the gripper
stroke. For this purpose, magnetic proximity sensors can be mounted in 2 of the T­
slots on the cylinder. Owing to the tolerance in the lever mechanism, there is a
hysteresis between the gripper jaw position and the cylinder magnet.
Accessories
è www.festo.com/catalogue.
7.2 Electrical installation
Electrical connection principle
1 Motor cable NEBM­F1W31­... (not
in scope of delivery)
2 Motor cable NEBM­SF1W31­...
(not in scope of delivery)
3 Rotary gripping module
Fig. 7 Electrical connection
Connection of motor cable NEBM-F1W31-... to EHMD
Fig. 8
Fig. 9
1. Press and hold the top end of the cover EHMD. Slide upwards to remove.
2. The cover EHMD can also be released using a screwdriver via the two slots.
3. Insert the motor cable until it clicks into place.
Fig. 10
4. Reposition the cover EHMD and slide downwards.
Ä
The push­in connector is mechanically secured in place. Movements of
the cable will not be transmitted to the plug connector.
See the applicable assembly instructions for information on installing
cables.