SCHUNK ROTA THWvario Gebrauchsanweisung

Translation of Original Operating Manual

Jaw quick-change with arbor or

collet chuck adapter

ROTA THW vario

Assembly and Operating Manual

Superior Clamping and Gripping

Imprint

2 01.00|ROTA THW vario |en-US

Imprint

This manual is protected by copyright. The author is SCHUNK GmbH & Co. KG. All rights

reserved.

Technical changes:

We reserve the right to make technical improvements.

Document number: 889033

Version: 01.00 |12/10/2020|en-US

Dear Customer

Dear Customer,

Thank you for putting your trust in 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.

We look forward to your challenging questions. We will find a solution!

Best regards,

Your SCHUNK team

H.-D. SCHUNK GmbH & Co.

Spanntechnik KG

Lothringer Str. 23

D-88512 Mengen

Tel. +49–7572-7614-0

Fax +49-7572-7614-1099

[email protected]

schunk.com

Customer Management

Tel. +49–7572-7614-1300

Fax +49-7572-7614-1039

custo[email protected]

Please read the operating manual in full and keep it close to the product.

01.00|ROTA THW vario |en-

General information ................................................................................................. 6

1.1

Safety notes .............................................................................................................. 6

1.2

Applicable documents.............................................................................................. 7

Basic safety notes..................................................................................................... 8

2.1

Appropriate use........................................................................................................ 8

2.2

Inappropriate use ..................................................................................................... 9

2.3

Notes on particular risks........................................................................................... 9

2.4

Notes on safe operation......................................................................................... 12

2.4.1

Substantial modifications............................................................................ 15

2.5

Personnel qualification........................................................................................... 15

2.6

Organizational measures........................................................................................ 16

2.7

The use of personal protective equipment............................................................ 16

Warranty................................................................................................................. 17

Scope of delivery ..................................................................................................... 17

4.1

ROTA THW vario 215-62......................................................................................... 17

4.2

ROTA THW vario D.................................................................................................. 17

4.3

ROTA THW vario F .................................................................................................. 17

Screw torques ......................................................................................................... 18

Technical data ......................................................................................................... 19

6.1

Chuck data .............................................................................................................. 19

6.2

Clamping force RPM diagrams ............................................................................... 20

6.3

Calculating the clamping force and RPM ............................................................... 21

6.3.1

Calculation of the required clamping force at a specified speed of rotation

..................................................................................................................... 21

6.3.2

Calculation example: required initial clamping force for a given RPM ...... 23

6.3.3

Calculation of the permissible RPM in case of a given initial clamping force

..................................................................................................................... 25

6.4

Accuracy classes ..................................................................................................... 26

6.5

Permitted imbalance .............................................................................................. 26

Product description ................................................................................................. 27

7.1

Segmented mandrel ROTA THW vario D................................................................ 27

7.2

Collet chuck ROTA THW vario F.............................................................................. 28

Assembly................................................................................................................. 30

8.1

Mounting the lathe chuck onto the machine spindle............................................ 30

8.2

Segmented mandrel ROTA THW vario D................................................................ 33

8.2.1

Mounting the segmented mandrel on the power chuck ........................... 33

4 01.00|ROTA THW vario |en-US

8.2.2

Changing the segmented clamping sleeve ................................................. 36

8.2.3

Changing the stops...................................................................................... 36

8.2.4

Disassembling and assembling the segmented mandrel ........................... 37

8.3

Collet chuck ROTA THW vario F.............................................................................. 38

8.3.1

Mounting the segmented mandrel on the power chuck ........................... 38

8.3.2

Replacing vario F clamping head ................................................................ 41

8.3.3

Back stops.................................................................................................... 42

8.3.4

Disassembling and assembling the collet chuck......................................... 43

Function .................................................................................................................. 44

9.1

Function and handling............................................................................................ 44

9.2

Base jaw position.................................................................................................... 45

9.3

Replacement or enlargement of jaws .................................................................... 45

9.4

Center sleeve range................................................................................................ 45

9.5

Disassembling and assembling the chuck .............................................................. 47

Troubleshooting ...................................................................................................... 49

10.1

Segmented mandrel ROTA THW vario D................................................................ 49

10.2

Collet chuck ROTA THW vario F.............................................................................. 50

Maintenance ........................................................................................................... 51

11.1

General information ............................................................................................... 51

11.2

Cleaning .................................................................................................................. 52

11.3

Lubrication.............................................................................................................. 52

11.4

Maintenance plan................................................................................................... 53

11.5

Technical condition ................................................................................................ 55

11.6

Changing the stepped jaws .................................................................................... 55

Spare parts .............................................................................................................. 56

12.1

ROTA THW vario 215-62......................................................................................... 56

12.1.1

Versions and spare parts, segmented mandrel ROTA THW vario D........... 58

12.1.2

Design and spare parts, collet chucks ROTA THW vario F .......................... 59

Assembly drawing ................................................................................................... 60

13.1

ROTA THW vario 215-62......................................................................................... 60

13.1.1

Segmented mandrel ROTA THW vario D .................................................... 62

13.1.2

Collet chuck ROTA THW vario F .................................................................. 63

Accessories.............................................................................................................. 64

14.1

Segmented clamping sleeve ROTA THW vario D ................................................... 64

14.1.1

SAD segmented clamping sleeve ................................................................ 64

14.1.2

Back stops.................................................................................................... 67

14.1.3

Mandrex ...................................................................................................... 68

01.00|ROTA THW vario |en-

14.2

Collet chuck ROTA THW vario F.............................................................................. 70

14.2.1

HSW clamping heads for self-turning ......................................................... 70

14.2.2

Changing device .......................................................................................... 73

14.2.3

Jaw turning rings ......................................................................................... 75

Declaration of Incorporation ................................................................................... 77

General information

6 01.00|ROTA THW vario |en-US

General information

This operating manual is an integral part of the product and

contains important information on safe and proper assembly,

start-up, operation, care, maintenance and disposal. This manual

must be kept in the immediate vicinity of the product, accessible

to all users.

Pay particular attention to the chapter "Basic safety notes" prior to

using the product described in this manual. (2, Page 8)

If transferring the product to a third party, be sure to include this

operating manual.

The illustrations in this operating manual are intended to provide a

basic understanding of the product and may deviate from the

actual version.

We accept no liability for damage resulting from failure to

observe and comply with this operating manual.

Safety notes

To make risks clear,the following signal words and symbols are

used for safety notes.

DANGER

Danger to individuals!

Ignoring a safety note such as this will certainly lead to

irreversible injury and even death.

WARNING

Danger to individuals!

Ignoring a safety note such as this can lead to irreversible injury

and even death.

CAUTION

Danger to individuals!

Non-observance can cause minor injuries.

1.1

General information

01.00|ROTA THW vario |en-

NOTICE

Material damage!

Information about avoiding material damage.

WARNING

Warning about hand injuries

WARNING

Warning about hot surfaces

Applicable documents

• General terms and conditions *

• Catalog data sheet for purchased product *

• Calculation of the jaw centrifugal forces, in the chapter

"Technology" of the lathe chuck catalog *

The documents indicated with an asterisk (*) can be downloaded

from schunk.com.

1.2

Basic safety notes

8 01.00|ROTA THW vario |en-US

Basic safety notes

The improper handling, assembly and maintenance of this product

may result in risk to persons and equipment if this manual is not

observed.

• Read through the manual carefully prior to assembly and

installation.

• Report any failures and damage to the manual lathe chuck

immediately following detection and repair it without delay to

keep the extent of the damage minimal and prevent

compromising the safety of the chuck. Only use original

SCHUNK spare parts when replacing damaged parts.

• Keep this manual accessible to all users at all times.

• If transferring the product to a third party, be sure to include

this manual.

Appropriate use

This product is intended for clamping workpieces on lathes and

other suitable machine tools.

• The product may only be used within the scope of its technical

data, (6, Page 19).

• 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 speed and the necessary clamping force must be

determined by the operator for each clamping task in

accordance with the valid standards or technical specifications

of the manufacturer.

(Also see "Calculation for clamping force and speed of rotation"

in chapter "Technical data".) (6, Page 19)

2.1

Basic safety notes

01.00|ROTA THW vario |en-

Inappropriate use

The manual lathe chuck is not being used as intended if, for

example:

• workpieces are not properly clamped.

• safety regulations are disregarded and persons are working at

the manual lathe chuck (for example, to machine clamped

workpieces) without additional protective equipment.

• the technical data is exceeded when using the manual lathe

chuck.

• the manual lathe chuck is used with machines/systems or

workpieces that are not designed to be used with it.

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 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.

2.2

2.3

Basic safety notes

10 01.00|ROTA THW vario |en-US

DANGER

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.

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 lathe chuck.

• Note the relevant load securing regulations for working safely

with cranes, ground conveyors, lifting gear and load-handling

equipment.

CAUTION

Risk of slipping or falling if the chuck's operational environment

is not clean (e.g. contaminated with cooling lubricants or oil).

• Ensure that the working environment is clean before starting

assembly and installation work.

• Wear suitable safety boots.

• Follow the safety and accident prevention regulations when

operating the chuck, especially when working with machine

tools and other technical equipment.

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