SCHUNK ROTA-S plus 2.0 User instructions

Translation of the original manual
Manual chuck
ROTA-S plus 2.0
Assembly and Operating Manual
Superior Clamping and Gripping

Imprint
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Imprint
Copyright:
This manual is protected by copyright. The author is SCHUNK GmbH & Co. KG. All rights
reserved. Any reproduction, processing, distribution (making available to third parties),
translation or other usage - even excerpts - of the manual is especially prohibited and
requires our written approval.
Technical changes:
We reserve the right to make alterations for the purpose of technical improvement.
Document number: 0889002
Version: 05|28/03/2019|en
© H.-D. SCHUNK GmbH & Co.
All rights reserved.
Dear Customer,
thank you for trusting our products and our family-owned company, the leading
technology supplier of robots and production machines.
Our team is always available to answer any questions on this product and other solutions.
Ask us questions and challenge us. We will find a solution!
Best regards,
Your SCHUNK team
H.-D. SCHUNK GmbH & Co.
Spanntechnik KG
Lothringer Str. 23
D-88512 Mengen
Tel. [phone]
Fax [phone]
[email protected]
schunk.com

Table of Contents
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Table of Contents
1
About this manual.................................................................................................... 5
1.1
Presentation of Warning Labels ............................................................................... 5
1.2
Applicable documents .............................................................................................. 6
2
Basic safety instructions ........................................................................................... 7
2.1
Intended use............................................................................................................. 7
2.2
Not intended use ...................................................................................................... 7
2.3
Notes on particular risks........................................................................................... 8
2.4
Notes on safe operation......................................................................................... 10
2.4.1
Constructional changes............................................................................... 14
2.5
Personnel qualification........................................................................................... 14
2.6
Organizational measures........................................................................................ 14
2.7
Personal protective equipment.............................................................................. 15
3
Warranty................................................................................................................. 16
4
Torque per screw .................................................................................................... 16
5
Scope of delivery ..................................................................................................... 16
6
Technical data ......................................................................................................... 17
6.1
Chuck data .............................................................................................................. 17
6.2
Clamping force / speed diagrams........................................................................... 18
6.3
Calculations for clamping force and speed ............................................................ 22
6.3.1
Calculation of the required clamping force in case of a given rpm............ 22
6.3.2
Calculation example: Required initial clamping force Fsp0 for a given rpm n
..................................................................................................................... 24
6.3.3
Calculation of the permissible rpm nzul in case of a given initial clamping
force Fsp0.................................................................................................... 26
6.4
Grades of Accuracy................................................................................................. 26
6.5
Permissible imbalance............................................................................................ 26
7
Attachment of the manual chuck............................................................................. 27
7.1
Handling prior to attachment................................................................................. 27
7.2
Preparing the chuck attachment............................................................................ 27
7.3
Mounting of the Manual Chuck ............................................................................. 28
8
Function .................................................................................................................. 29
8.1
Handling and jaw change ....................................................................................... 29
8.2
Important notes...................................................................................................... 31
8.3
Control of the chuck ............................................................................................... 32
8.4
Control of true-running .......................................................................................... 32

Table of Contents
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Maintenance ........................................................................................................... 34
9.1
Disassembling and assembling the chuck .............................................................. 34
9.2
Jaw change ............................................................................................................. 36
9.3
At least once a month ............................................................................................ 36
9.4
In the case of decreasing clamping force or after approx. 200 operating hours .. 37
9.5
Maintenance intervals............................................................................................ 37
10
Disposal .................................................................................................................. 38
11
Spare parts.............................................................................................................. 39
12
Assembly drawing ................................................................................................... 40

About this manual
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About this manual
This manual contains important information for a safe and
appropriate use of the product.
This manual is an integral part of the product and must be kept
accessible for the personnel at all times.
Before starting work, the personnel must have read and
understood this operating manual. Prerequisite for safe working is
the observance of all safety instructions in this manual.
Illustrations in this manual are provided for basic understanding
and may differ from the actual product design.
In addition to these instructions, the documents listed under
(1.2, Page 6) are applicable.
Presentation of Warning Labels
To make risks clear, the following signal words and symbols are
used for safety notes.
DANGER
Danger for persons!
Non-observance will inevitably cause irreversible injury or death.
WARNING
Dangers for persons!
Non-observance 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.
1
1.1

About this manual
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Applicable documents
•General terms of business*
•Catalog data sheet of the purchased product *
•Calculation of the jaw centrifugal forces, "Technology" chapter
in the lathe chuck catalog *
The documents marked with an asterisk (*) can be downloaded on
our homepage schunk.com
1.2

Basic safety instructions
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Basic safety instructions
Improper handling, assembly and maintenance of this product may
result in risk to persons and equipment if this operating manual is
not observed.
Report any failures and damage immediately and repair without
delay to keep the extent of the damage to a minimum and prevent
compromising the safety of the product.
Only original SCHUNK spare parts may be used.
Intended use
The product is suitable for clamping workpieces on milling or lathe
machines and other suitable tooling machines.
•The product may only be used within the scope of its technical
data, (6, Page 17).
•The product is intended for industrial and industry-oriented
use.
•Appropriate use of the product includes compliance with all
instructions in this manual.
•The maximum RPM of the chuck and the required clamping
force must be determined by the user for the respective
clamping task based on the applicable standards and technical
specifications of the manufacturer.
(See also “Calculations for clamping force and RPM” in the
chapter “Technical data”). (6, Page 17)
Not intended use
A not intended use of the product is for example:
•It is used as a press, a punch, a toolholder, a load-handling
device or as lifting equipment.
•the product is used for unintended machines or workpieces.
•the technical data is exceeded when using the product.
(6, Page 17)
•if workpieces are not clamped properly, paying particular
attention to the clamping forces specified by the manufacturer.
•if it is used in working environments that are not permissible.
•if the product is operated without a protective cover.
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2.1
2.2

Basic safety instructions
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Notes on particular risks
This product may pose a danger to persons and property if, for
example:
•It is not used as intended;
•It is not installed or maintained properly;
•The safety and installation instructions, local applicable safety
and accident prevention regulations or the EC Machinery
Directive are not observed.
DANGER
Possible risk of fatal injury to operating personnel if a jaw
breaks or if the lathe chuck fails because the technical data have
been exceeded and a workpiece is released or parts fly off
•The technical data specified by the manufacturer for using the
lathe chuck must never be exceeded.
•The lathe chuck may only be used on machines and facilities
that fulfill the minimum requirements of the EC Machinery
Directive; specifically, they must have effective technical
measures to protect against possible mechanical hazards.
DANGER
Possible risk of fatal injury to operating personnel from clothing
or hair being caught on the lathe chuck and being dragged into
the machine
Loose clothing or long hair may become caught on projecting
parts of the lathe chuck and be drawn into the machine.
•The machines and equipment must fulfill the minimum
requirements of the EC Machinery Directive; specifically, they
must have effective technical measures to protect against
potential mechanical hazards.
•Always wear tight-fitting clothing and a hairnet when working
on the machine and the lathe chuck.
2.3

Basic safety instructions
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WARNING
Risk of injury due to dropping the chuck during transport,
installation or removal.
•Take special care in the danger zone when transporting,
installing or removing the chuck.
•Note the relevant load securing regulations for working safely
with cranes, ground conveyors, lifting gear and load-handling
equipment.
CAUTION
Danger of slipping and falling in case of dirty environment
where the chuck is used (e.g. by cooling lubricants or oil).
•Ensure that the working environment is clean before starting
assembly and installation work.
•Wear suitable safety shoes.
•Follow the safety and accident-prevention regulations when
operating the chuck, especially when working with machine
tools and other technical equipment.
CAUTION
Danger of limbs being crushed by opening and closing of the
chuck jaws during manual loading and unloading or when
replacing moving parts.
•Do not reach between the jaws.
•Wear safety gloves.
•Observe the safety and accident prevention regulations during
operation of the chuck, especially in connection with
machining centers and other technical equipment.
CAUTION
Risk of burns due to workpieces with high temperatures.
•Wear protective gloves when removing the workpieces.
•Automatic loading is preferred.

Basic safety instructions
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CAUTION
Danger of damage due to incorrectly selected clamping position
of the clamping jaws to the workpiece.
An incorrectly selected clamping position of the clamping jaws to
the workpiece can result in damage to the base and top jaws.
•Make sure that the workpiece clamping is concentric.
•In the case of a chuck with a quick-change jaw system the top
jaws must not protrude radially beyond the base jaws used.
Exception: The supporting jaw variant 3 protrudes beyond the
chuck base jaw due to the construction of the jaw. In this case,
the T-nuts must always be inserted completely into the groove
of the chuck base jaw.
CAUTION
Hazard from vibration due to imbalanced rotating parts and
noise generation.
Physical and mental strains due to imbalanced workpieces and
noise during the machining process on the clamped and rotating
workpiece.
•Ensure the chuck's axial and concentric runout.
•Check options for remedying imbalances on special top jaws
and workpieces.
•Reduce the speed.
•Wear hearing protection.
Notes on safe operation
•Do not start the machine spindle until the workpiece is
clamped and the spanner wrench has been removed from the
chuck.
•Only operate the lathe chuck when all protective equipment
has been fitted and is in full working order.
•Check the lathe chuck at least once per shift for externally
visible damage and faults.
Functional test
After installation of the lathe chuck, its function must be checked
prior to start-up:
•Clamping force! At max. torque, the clamping force specified
for the chuck must be reached.
2.4