SCHUNK SRU-plus 20 User instructions

Translation of the original manual
Pneumatic Swivel Unit
SRU-plus 20 - 60
Assembly and Operating Manual
Superior Clamping and Gripping
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Imprint
2 04.07|SRU-plus 20 - 60|en
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 particu-
lar competitive companies,
without our prior permission.
Technical changes:
We reserve the right to make alterations for the purpose of technical improvement.
Document number: 0389443
Edition: 04.07 |26/11/2014|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. [phone]
Fax [phone]
[email protected]
www.schunk.com
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Table of contents
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3
Table of contents
1 About this manual .................................................................................................... 5
1.1 Warnings................................................................................................................... 5
1.2 Applicable documents .............................................................................................. 6
1.3 Variants..................................................................................................................... 6
2 Basic safety notes .................................................................................................... 8
2.1 Intended use............................................................................................................. 8
2.2 Not intended use ...................................................................................................... 8
2.3 Environmental and operating conditions................................................................. 8
2.4 Product safety........................................................................................................... 9
2.4.1 Protective equipment ................................................................................... 9
2.4.2 Constructional changes, attachments, or modifications.............................. 9
2.5 Personnel qualification............................................................................................. 9
2.6 Using personal protective equipment.................................................................... 10
2.7 Notes on particular risks......................................................................................... 10
3 Warranty................................................................................................................. 12
4 Scope of delivery ..................................................................................................... 13
5 Accessories.............................................................................................................. 13
5.1 Sensors.................................................................................................................... 13
6 Technical data ......................................................................................................... 14
7 Assembly................................................................................................................. 15
7.1 Mechanical connection .......................................................................................... 15
7.2 Air connection ........................................................................................................ 17
7.3 Adjusting the limit positions................................................................................... 20
7.3.1 Basic setting 0° and 180°............................................................................. 20
7.3.2 Shock absorber stroke fine adjustment 0° and 180° .................................. 22
7.3.3 Adjusting the center position (variant M) .................................................. 24
7.3.4 Adjusting the center position (variant VM) ................................................ 25
7.4 Sensors.................................................................................................................... 26
7.4.1 Inductive proximity switch IN 80 ................................................................ 27
7.4.2 Magnetic switch MMS 22 ........................................................................... 29
8 Commissioning ........................................................................................................ 31
8.1 Setting the speed.................................................................................................... 31
8.2 Adjustment of the shock absorber stroke.............................................................. 32
9 Function and handling ............................................................................................. 35
9.1 Base unit ................................................................................................................. 35
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Table of contents
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9.2 Center position (variant M).................................................................................... 36
9.3 Locked center position (variant VM)...................................................................... 37
9.3.1 Mounting the separating sleeve ................................................................. 39
9.3.2 Version VM with separate piston chambers .............................................. 40
10 Trouble shooting ..................................................................................................... 42
10.1 Module does not move? ........................................................................................ 42
10.2 The module does not travel through the entire stroke? ....................................... 42
10.3 Torque drops? ........................................................................................................ 42
10.4 The module rotates abruptly?................................................................................ 43
10.5 Module does not move smoothly to the limit positions?...................................... 43
11 Maintenance and care ............................................................................................. 44
11.1 Notes....................................................................................................................... 44
11.2 Maintenance and lubrications intervals................................................................. 44
11.3 Lubricants/Lubrication points (basic lubrication) ................................................. 44
11.4 Disassembly of the module ................................................................................... 45
11.4.1 Dismantling the rotary actuator ................................................................. 45
11.4.2 Disassembling the center position (variant M and VM) ............................. 46
11.4.3 Replacing a shock absorber ........................................................................ 46
11.4.4 Shock absorber types and shock absorber overlap (h) .............................. 50
11.5 Servicing and assembling the module.................................................................... 52
12 Assembly drawings.................................................................................................. 53
12.1 Basic components and media feed-through.......................................................... 54
12.2 Fitting locked center position................................................................................. 55
12.3 Locating face end position adjustability 90° .......................................................... 55
12.4 Locating face end position adjustability 3° ........................................................... 55
12.5 Addition locked middle position ............................................................................ 56
12.6 Piston and cover basic unit..................................................................................... 56
12.7 Addition center position......................................................................................... 56
13 Seal kit .................................................................................................................... 57
14 Accessories pack...................................................................................................... 58
15 Translation of original declaration of incorporation................................................. 59
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About this manual
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5
About this manual
This instruction is an integral part of the product and contains im-
portant information for a safe and proper assembly, commission-
ing, operation, maintenance and help for easier trouble shooting.
Before using the product, read and note the instructions, especial-
ly the chapter "Basic safety notes".
Warnings
To make risks clear, the following signal words and symbols are
used for safety notes.
DANGER
Danger for persons.
Non-compliance will inevitably cause irreversible injury or death.
WARNING
Dangers for persons.
Ignoring a safety note like this can lead to irreversible injury and
even death.
CAUTION
Dangers for persons.
Non-observance can cause minor injuries.
NOTICE
Material damage
Information about avoiding material damage.
DANGER
Danger of explosion in potentially explosive areas!
1
1.1
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About this manual
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Applicable documents
•General terms of business
•Catalog data sheet of the purchased product
•Assembly and Operating manuals of the accessories
•Supplementary sheet "Installation and operating instructions - EX"
The documents listed here, can be downloaded on our homepage
www.schunk.com
Variants
This operating manual applies for the following variations
•SRU-plus
•SRU-plus angle of rotation 90°
•SRU-plus angle of rotation 180°
•SRU-plus limit position adjustability 3°
•SRU-plus limit position adjustability 90°
•SRU-plus with media feed-through
•SRU-plus without media feed-through
•SRU-plus with pneumatic center position
•SRU-plus with locked center position
Fig. 1 Type designation
1.2
1.3
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About this manual
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7
Fig. 2
1 case 7 clamping glasses
(optional)
13 monitoring with
moveable cam
2 piston with damper 8 flange for media feed
through
14 monitoring with fixed
cam
3 pinion 9 piston with damper -
locked middle position
15 sensor mount with
sensor
4 secure stop (0° - 180°) 10 addition M (0°-90°-180°) 16 secure stop - locked
middle position
5 cap 11 addition locked middle
position (0°-90°-180°)
17 secure stop (0° - 90°)
6 cover 12 pinion with media feed
through
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Basic safety notes
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Basic safety notes
Intended use
The product was designed to swivel permissible attachments or
workpieces.
The product is intended for installation in a machine/system. The
requirements of the applicable guidelines must be observed and
complied with.
The product may be used only in the context of its defined applica-
tion parameters (6, Page 14).
The product is designed 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.
Not intended use
Use which is not specified as an intended use is for instance when the
product is for example used as a pressing tool, stamping tool, lifting
tool, guide for tools, cutting tool, tensioning mean, boring tool.
Environmental and operating conditions
•Make sure that the product has a sufficient size for the applica-
tion.
•Observe Maintenance and lubrication intervals (11.2, Page 44).
•Make sure that the environment is free from splash water and
vapors as well as from abrasion or processing dust. Exceptions
are products that are designed especially for contaminated en-
vironments.
2
2.1
2.2
2.3
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Basic
safety notes
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9
Product safety
Dangers arise from the product, if:
•the product is not used in accordance with its intended purpose.
•the product 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 product.
Wear protective equipment.
NOTE
More information are contained in the relevant chapters.
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.
Personnel qualification
The assembly, initial commissioning, maintenance, and repair of
the product may be performed only by trained specialist person-
nel. Every person called upon by the operator to work on the
product must have read and understood the complete assembly
and operating manual, especially the chapter "Basic safety notes"
(2, Page 8). This applies particularly to personnel only used oc-
casionally, such as maintenance personnel.
2.4
2.4.1
2.4.2
2.5
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Basic safety notes
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Using personal protective equipment
When using this product, observe the relevant industrial safety regu-
lations 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.
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 con-
nected.
•Do not reach into the open mechanism or the movement area
of the unit.
•Perform maintenance, modifications, and additions outside the
danger zone.
•Secure the product during all operations against uncontrolled
activation.
•Take a precautionary approach by maintenance and disassembly.
•Only specially trained staff should disassemble the product.
2.6
2.7
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Basic
safety notes
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11
WARNING
Risk of injury from objects falling and being ejected
•The danger zone must be surrounded by a safety fence during
operation.
WARNING
Risk of injury when the machine/system moves unexpectedly.
WARNING
Risk of injury due to rotating components!
Avoidance: The danger zone must be surrounded by a safety
fence during operation.
WARNING
Risk of injury due to loosened parts and destruction of the swi-
velling unit due to damaged shock absorbers!
Avoidance: Regular inspection of the individual components on
wear and damage.
WARNING
Note that suitable emergency-off strategies (e.g. controlled shut
down) and restarting strategies (e.g. pressure build-up valves,
appropriate valve switching sequences) are needed for all
pneumatic actuators.
Cutting off the pressure in an uncontrolled manner could lead to
undefined states and behavior.
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Warranty
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Warranty
If the product is used as intended, the warranty is valid for 24
months from the date of delivery from the production facility un-
der 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.
3
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Accessories
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13
Scope of delivery
The scope of delivery includes
•Pneumatische Schwenkeinheit SRU-plus in the ordered model.
•Accessory pack
Accessories
A wide range of accessories is available for this module.
For information about which accessories can be used with the ap-
propriate product version ☞catalog.
Sensors
Overview of the compatible sensors
Designation Type
Magnetic switch MMS
Inductive proximity switches IN
•Exact type designation of the compatible sensors see ☞catalog.
•If you require information on sensor operation, contact your
SCHUNK contact person or download information from our
homepage. www.schunk.com
4
5
5.1
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Technical data
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Technical data
Basical data
Designation Value
Noise emission [dB(A)] ≤70
Pressure medium
Compressed air, compressed air quality
according to ISO 8573-1:7 4 4
Min. pressure [bar] See data sheet
Max. pressure [bar] See data sheet
The catalog contains diagrams for designing to the maximum
allowable moment of inertia.Your contact person at SCHUNK
can support you for calculating other applications.
More technical data are included in the catalog data sheet. Whi-
chever is the latest version.
6
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Assembly
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15
Assembly
Mechanical connection
DANGER
Danger of explosion in explosion risk areas!
•Follow the instructions in supplementary sheet "Installation
and operating instructions - EX" for modules in explosion-
resistant versions (EX)!
WARNING
Risk of injury when the machine/system moves unexpectedly!
Switch off power supply.
The module can be mounted on the base side.
Fig. 3 Assembly options
mounting material (* provided by customer/ ** included in the enclosed pack)
Item Designation SRU-plus
20 25 30 35 40 50 60
1* Screw M6 M6 M6 M8 M8 M10 M12
2** Centering sleeve Ø12 Ø12 Ø12 Ø12 Ø14 Ø16 Ø16
1 Use the centering sleeves (2) from the enclosed pack.
2 Secure the module from the output side via the drill holes
provided for this purpose, or at the base using the threads.
7
7.1
Mounting
Fastening
at the base
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Assembly
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Fig. 4 Mounting the attachments on the pinion
The following mounting materials are necessary for installation of
the unit and must be provided by the customer:
mounting material (* provided by customer/ ** included in the enclosed pack)
Item Designation SRU-plus
20 25 30 35 40 50 60
1 * Screw M6 M6 M6 M16 M8 M10 M10
2 * Screw M5 M6 M6 M6 M8 M10 M10
3 * Fitting screw M5 M5 M5 M5 M6 M8 M8
4 ** Centering sleeve Ø6,0 Ø6,0 Ø6,0 Ø6,0 Ø8,0 Ø10 Ø10
1 Use the centering sleeves (4) from the enclosed pack.
2 Use the 4 threaded holes to secure the attachment.
1 Mount the switch cam retaining disk with the centering
sleeves (4) between the pinion and a mounting plate (pro-
vided by the customer).
2 Use the 4 threaded holes to secure the mounting plate.
3 Secure the attachment to the mounting plate.
Fastening
to the pinion
Fastening to the pi
nion
with optional inductive
proximity switch
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Assembly
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17
Air connection
DANGER
Danger of explosion in explosion risk areas!
•Follow the instructions in supplementary sheet "Installation
and operating instructions - EX" for modules in explosion-
resistant versions (EX)!
WARNING
Warning: Risk of injury when the machine/system moves unex-
pectedly!
Remove the energy supplies before starting with assembly and
adjustments.
Make sure that no residual energy remains in the system.
NOTICE
Observe the requirements for the air supply
(6, Page 14).
•Only open the air connections required.
•Seal air connections not required using
the locking screws from the enclosed pack.
•For hose-free direct connections use the two O-rings from the
enclosed pack.
7.2
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Assembly
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Fig. 5 compressed air connections A, B, C and D
Item Designation Description Function
1 b Hose-free
direct connection
Swiveling 90° - 0° / 180° - 0°
2 a Swiveling 0° -90° / 0° - 180°
3 d Approach center position (M)
Extend locking piston (VM)
4 c
5 C Hose connection Approach center position (M)
Extend locking piston (VM)
6 D
7 A Swiveling 0° -90° / 0° - 180°
8 B Swiveling 90° - 0° / 180° - 0°
Pay attention to the following table when using throttles.
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Assembly
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19
1 The air connections labeled "C" and "D" must be pressurized
together (with intersection).
NOTICE
In the variant with locked center position, this can cause mal-
functions!
•Do not install an exhaust air throttle.
•Observe table
(
7.2, Page 19).
NOTE
The operating pressure of the lock must be between 4 and 6 bar.
1 In addition, air connections that are marked "C" and "D" are
available (7.2, Page 18).
2 The lock can be engaged smoothly using a supply air throttle.
Table (7.2, Page 19)
1 Connections marked with numbers are provided for feed-
through of the media on the pinion (19) and the flange (20).
(Position of the position numbers (12.1, Page 54))
Use of throttles
Module variant A B C D
Without center positi-
on
Exhaust air
throttle
Exhaust air
throttle
- -
With center position
(M)
Exhaust air
throttle
Exhaust air
throttle
Supply air
throttle
Supply air
throttle
With locked center
position (VM)
Supply air throttle Supply air throttle Supply air
throttle
Supply air
throttle
With locked
center position (VM)
and separate
main piston chambers
A1
Exhaust
air
throttle
A2
Supply
air
throttle
B1
Exhaust
air
throttle
B2
Supply
air
throttle
Supply air
throttle
Supply air
throttle
Air connection for
variants with
center position (M)
Air connection for
variants with
locked
center position (VM)
Variant with
media feed-through
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Assembly
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Adjusting the limit positions
Basic setting 0° and 180°
Fig. 6 Basic setting
1 Stop A 2 Hexagon socket
screw
3 Stop B
1 Unscrew the screw (2) with hexagon socket wrench (SRU-
plus20-40: 4; SRU-plus50-60: 5) about one rotation.
2 Actuate air connection "B". The module swivels to stop A (1).
3 Set the desired end position by turning stop A (1).
(For SRU-plus 50-60; reduce pressure before adjusting)
4 Check the setting: Ventilate air connection "B" and actuate it
again.Adjust the end positions if necessary.
(9.1, Page 35)Base unit
NOTICE
Components can come loose if the limit positions are not ad-
justed properly:
•Only trained staff may perform these actions.
•Use a 19 (SRU-plus 20-25) or 32 (SRU-plus 30-60) and
apply to the hexagon screw on the limit stop cover.
7.3
7.3.1
Basic setting 0°
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