Page 1
Miniature-Change-System
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Translation of the original manual
MWS 20 - 30
Assembly and Operating Manual
Superior Clamping and Gripping
Page 2
Imprint
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Imprint
Copyright:
This manual remains the copyrighted property of SCHUNK GmbH & Co. KG. It is solely
supplied to our customers and operators of our products and forms part of the product.
This documentation may not be duplicated or made accessible to third parties, in particular competitive companies,
without our prior permission.
Technical changes:
We reserve the right to make alterations for the purpose of technical improvement.
Document number: 0389230
Edition: 02.01 |06/06/2014|en
© SCHUNK GmbH & Co. KG
All rights reserved.
Dear customer,
congratulations on choosing a SCHUNK product. By choosing SCHUNK, you have opted for
the highest precision, top quality and best service.
You are going to increase the process reliability of your production and achieve best
machining results – to the customer's complete satisfaction.
SCHUNK products are inspiring.
Our detailed assembly and operation manual will support you.
Do you have further questions? You may contact us at any time – even after purchase.
Kindest Regards
Yours SCHUNK GmbH & Co. KG
Spann- und Greiftechnik
Bahnhofstr. 106 – 134
D-74348 Lauffen/Neckar
Tel. +49-7133-103-0
Fax +49-7133-103-2399
info@de.schunk.com
www.schunk.com
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Table of contents
Table of contents
1 About this manual .................................................................................................... 5
1.1 Warnings ................................................................................................................... 5
2 Basic safety notes .................................................................................................... 6
3 Warranty .................................................................................................................. 9
4 Scope of delivery ...................................................................................................... 9
5 Accessories ............................................................................................................... 9
6 Technical Data ......................................................................................................... 10
7 Product design ........................................................................................................ 11
8 Mounting ................................................................................................................ 12
9 Function and Handling ............................................................................................. 24
10 Troubleshooting ...................................................................................................... 26
1.1.1 Key words ...................................................................................................... 5
1.1.2 Symbols ......................................................................................................... 5
1.2 Applicable documents .............................................................................................. 5
2.1 Intended use ............................................................................................................. 6
2.2 Not intended use ...................................................................................................... 6
2.3 Environmental and operating conditions ................................................................. 6
2.4 Product safety........................................................................................................... 6
2.4.1 Protective equipment ................................................................................... 7
2.4.2 Constructional changes, attachments, or modifications .............................. 7
2.5 Personnel qualification ............................................................................................. 7
2.6 Using personal protective equipment ...................................................................... 7
2.7 Notes on particular risks ........................................................................................... 8
7.1 Application possibilities .......................................................................................... 11
8.1 Mounting the MWK at the robot ........................................................................... 13
8.2 Mounting the MWA to the tool ............................................................................. 14
8.3 Assignment ............................................................................................................. 15
8.3.1 Assignment MWK ........................................................................................ 15
8.3.2 Assignment MWA........................................................................................ 17
8.4 Installation of additional O-rings ............................................................................ 19
8.5 Mounting of additional pins ................................................................................... 21
9.1 Commissioning ....................................................................................................... 24
10.1 The system cannot be connected?......................................................................... 26
10.2 The system cannot be locked by the actuating ring? ............................................ 26
10.3 No signal is arriving at the tool? ............................................................................. 26
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Table of contents
10.4 Air is escaping from the MWS? .............................................................................. 26
11 Maintenance and Care ............................................................................................ 27
11.1 Maintenance instructions ...................................................................................... 27
11.2 Maintenance and lubrication intervals .................................................................. 27
11.3 Lubricants/Lubrication points (basic lubrication) .................................................. 27
12 Assembly drawing ................................................................................................... 28
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About this manual
About this manual
1
This instruction is an integral part of the product and contains important information for a safe and proper assembly, commissioning, operation, maintenance and help for easier trouble shooting.
Before using the product, read and note the instructions, especially the chapter "Basic safety notes".
1.1
Warnings
The following key words and symbols are used to highlight dangers.
1.1.1
Key words
DANGER Dangers for persons.
Non-compliance will inevitably cause irreversible injury or death.
WARNING Dangers for persons.
Non-compliance may cause irreversible injury or death.
CAUTION Dangers for persons.
Non-observance may cause minor injuries.
NOTICE Information about avoiding material damage
1.1.2
Symbols
Warning about a danger point
General mandatory sign to prevent material damage
Applicable documents
1.2
• General terms of business
• Catalog data sheet of the purchased product
The documents listed here, can be downloaded on our homepage
www.schunk.com
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Basic safety notes
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Basic safety notes
2
Intended use
2.1
The MWS Miniature-Change-System (Change Head MWK + Change
Adapter MWA) were designed for a quick change of parts and automation components on a robot in context of the technical data.
The product is intended for industrial use.
To use this unit as intended, it is also essential to observe the technical data and installation and operation notes in this manual and to
comply with the maintenance intervals.
2.2
Not intended use
It is not an intended use if the module is used, for example, as a
pressing tool.
2.3
Environmental and operating conditions
• Make sure that the module has a sufficient size for the application.
• Observe Maintenance and lubrication intervals ( 11.2, Page 27)
.
• Make sure that the environment is free from splash water and vapors as well as from abrasion or processing dust. Exceptions are
modules that are designed especially for contaminated environments.
Product safety
2.4
Dangers arise from the module, if:
• the module is not used in accordance with its intended purpose.
• the module is not installed or maintained properly.
• the safety and installation notes are not observed.
Avoid any manner of working that may interfere with the function
and operational safety of the module.
Wear protective equipment.
NOTE
More information are contained in the relevant chapters.
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Basic safety notes
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2.4.1
2.4.2
Protective equipment
Provide protective equipment per EC Machinery Directive.
Constructional changes, attachments, or modifications
Additional drill holes, threads, or attachments that are not offered as
accessories by SCHUNK may be attached only with permission of
SCHUNK.
2.5
Personnel qualification
The assembly, initial commissioning, maintenance, and repair of the
module may be performed only by trained specialist personnel. Every
person called upon by the operator to work on the module must
have read and understood the complete assembly and operating manual, especially the chapter "Basic safety notes" ( 2, Page 6)
. This
applies particularly to personnel only used occasionally, such as
maintenance personnel.
2.6
Using personal protective equipment
When using this product, observe the relevant industrial safety regulations and use the personal protective equipment (PPE) required!
• Use protective gloves, safety shoes and safety goggles.
• Observe safe distances.
• Minimal safety requirements for the use of equipment.
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Basic safety notes
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2.7
Notes on particular risks
Generally valid:
• Remove the energy supplies before installation, modification,
maintenance, or adjustment work.
• Make sure that no residual energy remains in the system.
• Do not move parts by hand when the energy supply is connected.
• Do not reach into the open mechanism or the movement area of
the module.
• Perform maintenance, modifications, and additions outside of the
danger zone.
• For all work, secure the unit against accidental operation.
• Take a precautionary approach by maintenance and disassembly.
• Only specially trained staff should disassemble the module.
WARNING
Risk of injury from objects falling and being ejected
• The danger zone must be surrounded by a safety fence during
operation.
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Warranty / Scope of delivery / Accessories
Warranty
3
The warranty is valid for 24 months from the delivery date to the
production facility under the following conditions:
• Intended use in 1-shift operation
• Observe the mandatory maintenance and lubrication intervals
• Observe the environmental and operating conditions
Parts touching the work piece and wear parts are not part of the
warranty.
Scope of delivery
The scope of delivery includes:
• Miniature Change Head MWK in the ordered model.
• Miniature Change Adapter MWA in the ordered model.
• Accessory pack
Accessories
5
The following accessories that are required for the module must
be ordered seperately:
• Electro module
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Technical Data
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Technical Data
6
Type MWS 20 MWS30
Noise emission [dB(A)] ≤ 70
Operating temperature range [°C] +5 to +60
Number of pneumatic energy transmission 2
Number of electric energy transmission 4 (optional) 8 (optional)
Electric energy transmission
Min.
Max.
Umin=5VDC, Imin=120 mA
Umax=24VDC, Imax=1A
Standard interface similar to ISO 29262 / DIN 32565
Pressure medium Compressed air, standard for quality of
the compressed air according to
ISO 8573-1: 7 4 4
Further technical data can be found in the catalog data sheet.
The most recent version applies.
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Product design
Product design
7
Fig. 1 Structure of the MWS
1 Miniature Change Head (MWK) 2 actuating ring with lever
3 milled groove (marking) 4 centering pin
5 Miniature Change Adapter (MWA) 6 milled groove (marking)
Application possibilities
7.1
Fig. 2
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Mounting
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Mounting
8
Fig. 3 Mounting example
1 Robot arm 2 MWK
3 MWA 4 Tool
(for example a gripper)
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Mounting
8.1
Mounting the MWK at the robot
WARNING
Risk of injury during assembly!
• Switch off the energy supply.
Fig. 4 Positions of the screws
1 Screw (ISO 4762) 2 Centering sleeve
The pins required for the electrical feed through are installed at
SCHUNK. If more pins are required by the customer, the installation of these pins must be done prior to installation.
1 Use head screws (1) from the enclosed pack.
MWK 20: 3 screws M2x8
MWK 30: 5 screws M2x8
2 If a precise alignment is required, the additional sleeves (2)
must be used from the enclosed pack.
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Mounting
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8.2
Mounting the MWA to the tool
WARNING
Risk of injury during assembly!
• Switch off the energy supply.
Fig. 5 Positions of the screws at MWA 20
1 Screw (ISO 4762) 2 Centering sleeve
The pins required for the electrical feed through are installed at
SCHUNK. If more pins are required by the customer, the installation of these pins must be done prior to installation.
1 If there are no possibilities for mounting at the tool, an addi-
tional adapter plate must be prepared.
2 Use head screws (1) for mounting the MWA.
MWK 20: 3 screws M2x8
MWK 30: 5 screws M2x8
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Electrical pins are not suitable for the transmission of measuring
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Mounting
8.3
Assignment
8.3.1
Assignment MWK
NOTE
signals!
MWS 20
Fig. 6 View of the MWK 20 in combined assignment (with view to the connection side to the MWA)
Item 2P-0E 2P-4E
1 - E
2 P P
3 - E
4 - E
5 P P
6 - E
Feed through: P= pneumatic E= electrical
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Mounting
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MWS 30
Fig. 7 View of the MWK 30 in combined assignment (with view to the connection side to the MWA)
Item 2P-4E 2P-6E 2P-8E
1 E E E
2 P P P
3 E E E
4 E E E
5 - E E
6 - E E
7 P P P
8 - - E
9 - - E
10 E E E
Feed through: P= pneumatic E= electrical
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Electrical pins are not suitable for the transmission of measuring
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Mounting
8.3.2
Assignment MWA
NOTE
signals!
MWS 20
Fig. 8 View of the MWA 20 in combined assignment (with view to the connection side to the MWK)
Item 2P-0E 2P-4E
1 - E
2 P P
3 - E
4 - E
5 P P
6 - E
Feed through: P= pneumatic E= electrical
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Mounting
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MWS 30
Fig. 9 View of the MWA 30 in combined assignment (with view to the connection side to the MWK)
Item 2P-4E 2P-6E 2P-8E
1 E E E
2 P P P
3 E E E
4 E E E
5 - E E
6 - E E
7 P P P
8 - - E
9 - - E
10 E E E
Feed through: P= pneumatic E= electrical
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The electrical feed-throughs can also be replaced by O-rings. This
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Mounting
8.4
Installation of additional O-rings
NOTE
allows the maximum number of air feed-throughs to be increased.
On the other hand, the O-rings can also be replaced by electrcial
feed-throughs.
Size Number
MWS 20 max. 6
MWS 30 max. 10
Mounting the O-rings for the compressed air feed-through
MWK
Fig. 10 View of the connection side toward the robot
Fig. 11 View of the connection side toward the MWA
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Mounting
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MWA
Fig. 12 View of the connection side toward the MWK
Fig. 13 View of the connection side toward the gripper
1 Place o-rings centrically at the positions provided.
2 Press in the O-rings using a suitable tool, e.g. a punch (see Fig-
ure) in axial direction.
3 Turn unit over.
4 Press in the O-rings in axial direction on the opposite side of
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the mounted O-rings.
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Mounting
8.5
Mounting of additional pins
Mounting of the electric pins
MWK
Fig. 14 MWK view of connection side toward MWA
Fig. 15 Insertion of electric contact pin - MWK
1 Press in the electric pins (optional) at the positions provided,
starting from the connection side toward the MWA.
2 CAUTION Important: watch out for correct mounting side!
Observe the marking. First, press in the sleeve in axial direction until the stop.
3 CAUTION Important: watch out for correct mounting side!
Observe the marking. Insert the ferrule with the broad side
(cone) pointing upward axially until the stop.
The ferrule protrudes on the opposite side beyond the housing.
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Mounting
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MWA
Fig. 16 MWA view of connection side toward MWK
Fig. 17 Insertion of electric contact pin - MWA
1 Starting from the connection side toward the MWK / MWA,
press in the electric pins (optional) at the positions provided.
2 First press in the sleeve in axial direction until the stop.
3 Insert the spring-loaded contact pin with the golden side
The contact pin then protrudes on both sides.
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pointing upward axially until the stop.
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Mounting
Soldering the electric contacts
NOTICE
Danger of short circuit!
• Shut off power supply during installation!
• Watch out for correct connection - do not interchange contacts!
• Solder should not reach up to the housing!
• Attach shrink tube over the solder joint.
• For the assignment of the electrical contacts of the relevant unit.
• MWK is solded on robot side ( 8.3.1, Page 15)
• MWA is solded tool side ( 8.3.2, Page 17)
.
.
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Page 24
Function and Handling
The example shows MWS 20. The handling of MWS 30 is identical.
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9
9.1
Function and Handling
Commissioning
CAUTION
Power supply must be switched off during commissioning!
The MWS is operated manually. A distinction is made between
connecting and disconnecting the system.
Connecting
Fig. 18 Connecting the MWS
NOTE
Lever at the MWK must be in "open" position.
1 Join the change head (MWK) and adapter (MWA) in axial di-
rection so that the milled grooves at MWA and MWK are
aligned.
2 Turn the actuating ring on the lever in the “close” direction
until you feel it lock into place.
The system is now ready for operation. Switch on the power
supply for the connected feed-throughs.
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The example shows MWS 20. The handling of MWS 30 is identical.
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Function and Handling
Disconnecting
NOTE
Fig. 19 Disconnecting the MWS
1 Turn the actuating ring manually in “open” direction until the
stop.
2 Pull adapter (MWA) from head (MWK) in axial direction.
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Troubleshooting
the electrical connections were soldered correctly,
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Troubleshooting
10
10.1
The system cannot be connected?
Possible cause Corrective action
The actuating ring is set to “close”.
The locking elements of the system
Turn the actuating ring on the lever to the "open"
position and connect the system ( 9.1, Page 24).
are blocking the MWK.
10.2
The system cannot be locked by the actuating ring?
Possible cause Corrective action
There is a gap between the MWK
and the MWA and the system cannot be locked correctly.
Switch off the power supply and check to ensure
that:
• the screws were mounted at the correct position.
• the groove on the MWK is lined up with the
groove on the MWA.
• all o-rings were inserted correctly and are flush
with the housing.
10.3
No signal is arriving at the tool?
Possible cause Corrective action
The electrical contact is interrupted.
Check to ensure that:
• the markings line up.
• the voltage supply to the system is sufficient.
•
and shrink tubing are mounted so that short circuits are avoided.
10.4
Air is escaping from the MWS?
Possible cause Corrective action
There is a leak in the system. Switch off the power supply and check to ensure that:
• the markings line up.
• all o-rings were mounted / are still present.
• all o-rings were mounted at the right position.
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Maintenance and Care
11.1
11
Maintenance and Care
Maintenance instructions
• Unless otherwise specified, secure all screws and nuts with Loctite no. 243 and tighten with the appropriate tightening torque.
11.2
• Send damaged changing system for repair to SCHUNK.
Maintenance and lubrication intervals
Interval [operating cycles] 50.000
This information refers to the use of the MWS under normal operating conditions and normal ambient conditions Environmental
and operating conditions.
11.3
Lubricants/Lubrication points (basic lubrication)
We recommend the lubricants listed.
During maintenance, treat all greased areas with lubricant. Thinly
apply lubricant with a lint-free cloth.
Lubrication point Lubricant
Locking elements FIN Lupe EP
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Assembly drawing
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Assembly drawing
12
Fig. 20 Assembly MWS
* Grease during maintenance
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