Festo EHMD-40-RE Series Instructions For Use

EHMD-40-RE-...
Rotary gripper module
Instructions | Use
8108367
2019­06a
[8108369]
Translation of the original instructions
1

About this document

1.1

Applicable documents

All available documents for the product è www.festo.com/pk.
Identifier
Application note
Tab. 1 Documentation for rotary gripper module
2

Safety

2.1

General safety instructions

– Only use the product in original status without unauthorised modifications.
– Only use the product if it is in perfect technical condition.
– Observe labelling on the product.
– Store the product in a cool, dry, UV­protected and corrosion­protected envir­
onment. Ensure that storage times are kept to a minimum.
– Prior to mounting, installation and maintenance work: Switch off power sup­
ply and secure it from being switched back on.
– Observe tightening torques. Unless otherwise specified, the tolerance
is ± 20 %.
2.2

Intended use

The intended use of the product is to grip, hold and rotate payloads (workpieces).
2.3

Foreseeable misuse

Gripping where the point of application is on the inside is not intended.
EHMD­...­GE: In normal operation, hitting the stop when moving in the opening
direction is not intended.
2.4

Training of qualified personnel

Only qualified personnel may perform installation, commissioning, maintenance
and disassembly of the product.
The qualified personnel must be familiar with the installation and operation of
electrical and pneumatic control systems.
3

Additional information

– Accessories è www.festo.com/catalogue.
4

Service

Contact your regional Festo contact person if you have technical questions
è www.festo.com.
5

Product overview

5.1 Functional Principle
Fig. 1 Functional principle
The product is a combined rotating and gripping module. Gripping occurs in the
closing direction of the gripper jaws (point of application on the outside).
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347­0
www.festo.com
8108367
Contents
Application examples for connection and com­
missioning
The parallel gripper can be actuated electrically (EHMD­...­GE) or pneumatically
(EHMD­...­GP), depending on version.
In both versions, the parallel gripper can be continuously rotated by means of the
electric axis of rotation.
Gripping force backup
EHMD­...­GP: without gripping force backup. Backup for the gripping force can
only be ensured using additional measures (e.g. uninterruptible compressed air
supply).
EHMD­...­GE: with gripping force backup. If the power supply is interrupted, a min­
imum gripping force is ensured by the mechanical design. However, the maximum
gripping force cannot be maintained.
5.2

Product design

EHMD-40-RE-GE | EHMD-40-RE-GP | EHMD-40-RE-GE-16
1 Stepper motor for the gripper func­
tion (installed in the housing)
2 Warning ­ hot surface
3 Pneumatic cylinder for gripper
function
Fig. 2 Product design
6 Mounting
6.1 Mounting The Gripper Fingers (Ehmd-40-Re-Ge/-Gp)
Fig. 3 Mounting the gripper fingers
1. Press centring sleeves 2 into locating holes in the gripper jaws 3.
2. Apply medium­strength screw locking agent to socket head screws 1.
3. Position gripper fingers 4 on the gripper jaws 3.
4. Screw in socket head screws 1. Comply with the tightening torque.
EHMD-40-RE-...
Centring hole [mm]
Centring sleeve
Threaded hole
Max. screw­in depth in grip­ [mm]
per jaw
Tightening torque [Nm]
Tab. 2 Mounting the gripper fingers
4 Rotatable gripper module
5 Gripper jaw
6 Product labelling
1 Screw
2 Centring sleeve
3 Gripper jaw
4 Gripper jaw blank (not in scope of
delivery)
-GE/-GP
H9
5
ZBH­5
M3
8.3
1.2