Festo DNCKE, KEC Operating Instructions Manual

en Operating

instructions

8074345

2017-10b

[8074347]

Cylinder with clamping unit / Clamping unit

DNCKE/KEC

DNCKE/KEC

2 Festo – DNCKE/KEC – 2017-10b

Original instructions

Symbols: The clamping unit KEC or the cylinder with clam

ping unit DNCKE is designated a product or cy
linder in these operating instructions.

Installation and commissioning may only be per
formed in accordance with these instructions by
technicians with appropriate qualifications.

Warning

Caution

Note

Environment

Accessories

English 3.........................................................................

DNCKE/KEC

Festo – DNCKE/KEC – 2017-10b English 3

English – Cylinder with clamping unit / Clamping unit
DNCKE/KEC

Table of contents

1 Configuration 5............................................................

2 Safety 6..................................................................

2.1 Intended use 6.............................................................

2.2 Foreseeable misuse 6.......................................................

2.3 General safety information 7..................................................

2.4 Mounting and connecting 7...................................................

2.5 Qualification of specialized personnel 7.........................................

3 Function 8................................................................

4 Transport 8...............................................................

5 Installation 8..............................................................

5.1 Mechanical installation 8.....................................................

5.1.1 Mounting the clamping unit 9.........................................

5.1.2 Mounting attachments 10.............................................

5.1.3 Mounting accessories 11.............................................

5.2 Pneumatic installation 11.....................................................

5.2.1 Prerequisites 11....................................................

5.2.2 Functional tests 12..................................................

5.2.3 Creating a tubing connection to the clamping unit 12.......................

6 Commissioning 13...........................................................

6.1 Dismounting the round material (only required for KEC) 14...........................

6.2 Adjustment of the clamping unit 15..............................................

6.3 Test run 16.................................................................

6.4 Clamping force test 16........................................................

7 Operation 20...............................................................

7.1 Adjustment of the clamping unit 21..............................................

DNCKE/KEC

4 Festo – DNCKE/KEC – 2017-10b English

8 Maintenance and care 22.....................................................

9 Disassembly and repair 22....................................................

10 Disposal 22................................................................

11 Accessories 22..............................................................

12 Fault clearance 23...........................................................

13 Technical data 24............................................................

DNCKE/KEC

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Documentation on the product

For all available product documentation è www.festo.com/pk

1 Configuration

DNCKE KEC

2

6

4

5

3

8

9

1

7 23765

1 Compressed air supply port for cylinders next

to the adjusting screws for the pneumatic
cushioning (only for DNCKE)

2 Supply port for releasing the clamp
3 Locking screw with internal hexagon socket

(for adjusting sleeve)

4 Piston rod (only DNCKE)

5 Adjusting sleeve with spanner flat
6 Hollow bolt with thread for mounting
7 Hole with filter element for exhausting the

clamping chamber

8 Slots for proximity sensor (only DNCKE)
9 Round material for transport protection

(only KEC)

Fig. 1

DNCKE/KEC

6 Festo – DNCKE/KEC – 2017-10b English

Definition

In these operating instructions, the designation
“clamping unit” is used for:

– the individual product KEC
– the design type DNCKE integrated in the

cylinder
In these operating instructions, the designation
“round material” is used for:

– the transport lock for KEC
– the piston rod for DNCKE

DNCKE

KEC

Fig. 2

2 Safety

2.1 Intended use

The clamping unit KEC is intended to serve both as an individual product and integrated into a DNC
cylinder (for cylinders with clamping unit DNCKE) for holding, clamping and inhibiting the movement of
round material.

2.2 Foreseeable misuse

The clamping unit is not intended as a brake. Use as a braking device (dynamic applications) does not
conform with the intended use.
The clamping unit is not suitable for positioning tasks or for transmitting torques and lateral forces. A
self-aligning rod coupler (è 11 Accessories) can prevent the transmission of lateral forces and bending
moments.

DNCKE/KEC

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2.3 General safety information

WARNING

Risk of injury! Uncontrolled movement. Piston rods can advance suddenly and unexpec
tedly, thereby causing injury to anybody who is in the positioning range.
 Make sure that nobody can place his/her hand in the positioning range of the payload.
 Make sure that no foreign objects are present in the positioning range of the payload.
 Do not modify the product in any way. Improper modifications impair its function and

present a safety risk.

 Observe legal regulations applicable to the destination.
 Only use the product if it is in its original status and in perfect working order.
 Use the product only within the defined values (è 13 Technical data).
 Observe product labelling.
 Observe applicable documents.
 Take into consideration the ambient conditions at the location of use.
 Protect the product during storage and operation from the following:

– Wetness or moisture
– Corrosive coolant or other materials (e.g. ozone)
– UV radiation
– Oils, greases and grease-solvent vapours
– Grinding dust
– Glowing chips or sparks

2.4 Mounting and connecting

 Observe tightening torques. Unless otherwise specified, the tolerance is ±20 %.

2.5 Qualification of specialized personnel

Only qualified specialized personnel may install, commission, service or disassemble the clamping unit.
The specialized personnel must be familiar with the installation and operation of electrical and pneu
matic control systems.

DNCKE/KEC

8 Festo – DNCKE/KEC – 2017-10b English

3 Function

Pressurising with compressed air on the supply port 2 (è Fig. 1)
opens the internal clamping component through a pneumatically
driven release mechanism. The round material can then move freely.

Fig. 3

P

If the compressed air supply port is exhausted, a spring-loaded
mechanism generates the clamping force of the clamping compon
ent. That way, the round material is clamped.

Fig. 4

4 Transport

 Take product weight into account (è 13 Technical data).

5 Installation

5.1 Mechanical installation

Prerequisites

Note

Lateral loads and bending moments exerted on the round material damage its function
and destroy the internal clamping component.
 Make sure that the loads are only exerted on the round material in the direction of

movement. The use of a self-aligning rod coupler (è 11 Accessories) prevents later
al forces.

Note

Movement of the round material against the clamping forces leads to heavy wear on the
internal clamping element and the round material.
 Make sure that the holding force is never exceeded. Otherwise, unexpected move

ment may occur.

 Make sure that the clamping unit is installed as follows:

– Operating elements always accessible

– Product fixed in such a way that it is free from mechanical stress or bending
 Check if additional external safety measures (e.g. pawls or moveable bolts) are required.
 Select the installation type for the desired application.

Refer to the Festo catalogue for more mounting alternatives (è Fig. 5) and required accessories.