Renishaw TS27R Tool Setting Probe Installation and user’s guide

Renishaw plc
New Mills, Wotton-under-Edge,
Gloucestershire, GL12 8JR
United Kingdom
T +44 (0)1453 524524
F +44 (0)1453 524901
E [email protected]
www.renishaw.com
Installation and user’s guide
H-2000-5018-08-A
TS27R - tool setting probe
For worldwide contact details,
please visit our main web site at
www.renishaw.com/contact
*H-2000-5018-08*
© 1995 - 2008 Renishaw. All rights reserved.
Trademarks
This document may not be copied or reproduced in
whole or in part, or transferred to any other media
or language, by any means, without the prior written
permission of Renishaw.
RENISHAW® and the probe emblem used in the
RENISHAW logo are registered trademarks of
Renishaw plc in the UK and other countries.
The publication of material within this document
does not imply freedom from the patent rights of
Renishaw plc.
Disclaimer
Considerable effort has been made to ensure
that the contents of this document are free from
inaccuracies and omissions. However, Renishaw
makes no warranties with respect to the contents
of this document and specifically disclaims any
implied warranties. Renishaw reserves the right to
make changes to this document and to the product
described herein without obligation to notify any
person of such changes.
apply innovation and Trigger Logic are trademarks
of Renishaw plc.
All other brand names and product names used
in this document are trade names, service marks,
trademarks, or registered trademarks of their
respective owners.
Patent notice
Features of products shown in this guide,
and of related products, are the subject of the
following patents and/or patent applications:
DE 4413968
JP
EP 0695926
JP 3,561,289
GB 2277593
JPw 2002-531,839
IT 1273643
US 5,446,970
US 5,647,137
Renishaw Part no: H-2000-5018-08-A
Issued: 05.08
US 5,669,151
3877842
ii
Contents
TS27R probe system....................................... 1-1
Fitting the stylus and captive link..................... 1-10
Operation......................................................... 1-2
Break stem...................................................... 1-11
Specification.................................................... 1-3
Stylus level setting........................................... 1-12
Interface unit.................................................... 1-3
Square stylus alignment.................................. 1-13
Dimensions...................................................... 1-4
Service and maintenance................................ 1-14
Installation....................................................... 1-5
Diaphragm maintenance................................. 1-15
Wiring connection diagrams............................ 1-6...
Parts list........................................................... 1-16
Preliminary information
iii
FCC
Information to user (FCC Section 15.19)
This device complies with Part 15 of the FCC rules. Operation is subject to the following conditions:
1.
This device may not cause harmful interference.
2.
This device must accept any interference received, including interference that may cause undesired operation.
Information to user (FCC Section 15.105)
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with
this installation guide, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely
to cause harmful interference, in which case you will be required to correct the interference at your own expense.
Information to user (FCC Section 15.21)
The user is cautioned that any changes or modifications not expressly approved by Renishaw plc or authorised representative could void
the user’s authority to operate the equipment.
Information to user (FCC Section 15.27)
The user is also cautioned that any peripheral device installed with this equipment such as a computer, must be connected with a highquality shielded cable to insure compliance with FCC limits.
iv
Installation and user’s guide
Installation and user’s guide
Warranty
CNC machine
Equipment requiring attention under warranty
must be returned to your supplier. No claims will
be considered where Renishaw equipment has
been misused, or repairs or adjustments have
been attempted by unauthorised persons.
CNC machine tools must always be operated by
competent persons in accordance with
manufacturers instructions.
Changes to equipment
Keep system components clean and treat the
probe as a precision tool.
Care of the probe
Renishaw reserve the right to change
specifications without obligation to change
equipment previously sold.
Safety
The TS27R system must be installed by a competent person, observing relevant safety precautions.
Before starting work, ensure that the machine tool is in a safe condition with the power switched OFF
and the power supply to the MI 8/MI 8-4 disconnected.
1-1
TS27R probe system
TS27R probe
Alternative interface units
11
Cable
7
Z
5
CNC
machine
control
Diameter setting
Rotate tool in
reverse direction
X/Y
1
MI 8-4 interface
2
7
MI 8 interface
10
3
4
6
Machine table
T slot
The TS27R probe is used for tool setting on CNC
machining centres.
For tool length measurements and broken tool
detection, the tool is driven against the probe’s
stylus in the Z axis. Rotating tools can be set in X
and Y axes for tool radius offsets.
Screw adjusters allow the stylus to be aligned with
the machine’s axes.
An interface unit processes signals between the
probe and the CNC control.
8
9
1. Stylus
2. Stylus holder for disc or square styli
3. Captive link
4. Break stem
5. Front cover
6. Probe’s base holding screws
7. Stylus level alignment – adjusting screws
8. Plinth
9. Square stylus axes alignment – adjusting screws
10. Square stylus axes alignment – locking screws
11. Conduit adaptor
1-2
Achievable set-up tolerances
The tolerances to which tools can be set depend
upon the flatness and parallelism of the stylus tip
setting. A value of 5 µm (0.0002 in) front to back
and side to side is easily achievable over the flat
portion of the stylus tip, and 5 µm (0.0002 in)
parallelism is easily achievable with the axes of a
square tip stylus. This setting accuracy is sufficient
for the majority of tool setting applications.
Operation
The surface cutting speed is not maintained if
cutters smaller than Ø24 mm (Ø0.95) or larger
than Ø127 mm (Ø5.0 in) are used.
First touch – machine feed rate
The feedrate (f) is calculated as follows:
f = 0.16 × rev/min f units mm/min (diameter set)
f = 0.12 × rev/min f units mm/min (length set)
Second touch – machine feed rate
Recommended rotating tool feed rates
800 rev/min, 4 mm/min (0.16 in/min) feedrate.
Cutters should be rotated in reverse to the cutting
direction.
Software routines
First touch – machine spindle rev/min
Rev/min for the first move against the probe stylus
is calculated from a surface cutting speed of
60 m/min (197 ft/min).
Spindle speed should be maintained within the
range 150 rev/min to 800 rev/min and relates
to cutters of Ø24 mm to Ø127 mm (Ø0.95 in to
Ø5.0 in).
Software routines for tool setting are available
from Renishaw for various machine controllers
and are described in data sheet H-2000-2289.
Specification and interface unit
Interface unit
Specification
Sense directions
Normally mounted to sense in the
machine’s ±X, ±Y and –Z axes
Uni-directional
repeatability
1 µm (0.00004 in).
Maximum mean 2 sigma (2s) value*
Stylus trigger force 1.3 N to 2.4 N / 130 gf to 240 gf (4.6 ozf to
8.5 ozf) depending on sense direction
Temperature
Operating
Storage
+5 °C to 60 °C (41 °F to 140° F)
–10 °C to 70 °C (14 °F to 158 °F)
*Valid as tested with a 35 mm straight stylus and a velocity of
480 mm/min in the centre of the stylus tip
Square stylus
Ceramic tip, 75 Rockwell C.
19.05 mm × 19.05 mm × 8 mm
(0.75 in x 0.75 in x 0.31 in)
Ø19.05 mm
(0.75 in)
Disc stylus
Tungsten carbide
75 Rockwell C.
Ø12.7 mm × 8 mm
(Ø0.5 in × 0.31 in)
Break stem
Ø12.7 mm
(0.5 in)
Ø19.05 mm
(0.75 in)
Ø8 mm
(0.31 in)
Ø8 mm
(0.31 in)
Stylus
holder
Captive link
1-3
The MI 8-4 interface is fully described in
user’s guide H-2000-5008. The alternative
MI 8 interface is fully described in user’s
guide H-2000-5015.
The MI 8-4 interface is used with the
standard G31 SKIP type control probe
input. The probe’s status output operates
between 4.75 Vdc and 30 Vdc.
All inputs are fully configurable for ACTIVE
HIGH and ACTIVE LOW operation.
The interface also includes an ‘inhibit’
function, as well as a facility for simple
selection between the tool setting probe
and an inspection probe.
The MI 8 interface is used with the
standard G31 SKIP type control probe
input. Probe status output is a voltage-free
SSR (solid state relay) which is invertable
via a switch (SW1).
Maximum current 50 mA peak
Maximum voltage ±50 V peak
An inhibit function is included, and a
facility to drive an external probe status
LED.
1-4
TS27R dimensions
dimensions mm (in)
56 (2.20)
27 (1.06) 8 (0.31)
60.75 (2.39)
Conduit adaptor
L
X/Y X/Y
X/Y
overtravel
Minimum 10°
in all axes
Stylus
33 (1.3)
Stylus
pivot point
Z
H
Machine table
T bolt assembly
To be supplied by user.
Bolt diameter M12 (0.50) maximum
H
H
Ø54 (Ø2.125) PCD
Ø63.5 (Ø2.5)
L2 L1
45°
Spirol® pin
81.75 (3.22)
50 (1.97)
Z
overtravel
5.5 (0.21) at
stylus centre
Two holes
for spirol® pins
Ø6.13 (0.24)
5.95 (0.23)
×
13 (0.51) deep
minimum
Four holes for spirol® pins
(two are used) equi-spaced
on Ø54 (2.125) PCD
Installation
Mounting the probe on the machine table
1. Select a position for the probe on the machine
table.
2. Detach the probe base and the plinth from the
probe by removing the two screws H and the
screw L1 using a 4 mm AF hexagon key.
3. Fit the T bolt (not supplied by Renishaw).
4. Tighten the T bolt to secure the probe base to
the machine table.
5. Refit the probe and plinth onto the base and
fit the screws. Tighten the two screws H firmly.
Keep the adjusting screws L1 and L2 loose
before setting the stylus alignment (see page
1-12).
6. Fit the stylus (see pages 1-10 and 1-11).
1-5
diameter 4.4 mm (0.17 in). Probe circuit – red and
blue cores (yellow and green not used).
Extension cable (15 m maximum extension)
Maximum permitted cable length:
Probe to interface – 25 m (82 ft) long
Two-core 7/0.2 mm polyurethene insulated and
screened cable. Maintain the screen through the
joins.
Conduit for cable protection
Renishaw recommends that Thomas and Betts
Type EF conduit, or a suitable alternative, is fitted
to all installations. The TS27R conduit adaptor
accepts Ø11 mm (0.43 in) flexible conduit.
Conduit adaptor
Cable
Spirol® pins (see page 1-4)
The T bolt provides adequate clamping for all
normal circumstances. However two Spirol®
pins (supplied in the probe kit) may be fitted
on installations where there is a requirement
to remove and remount the TS27R. To fit the
Spirol® pins, drill two holes in the machine table
to correspond with two of the probe base holes.
Place the Spirol® pins in the holes and refit the
probe base.
Cable
Four-core 7/0.2 polyurethane insulated and
screened cable 10 m (32.8 ft) long. Cable
Conduit
Note:
The cable screen is connected to the machine via
a 100 nF capacitor inside the TS27R to prevent
possible earth loops. Ensure the cable screen is
connected to the appropriate input on the interface.
1-6
Recommended connection diagram for TS27R with MI 8 interface
CNC controller
MI 8 interface
I/O supply
B7 SSR
Skip input (G31)
B6 SSR
Screen
Probe status output
(voltage free SSR)
B5 screen
Yellow/green
Optional
B1 inhibit
M code
driven
B2 inhibit 0 V
Yellow/green
Power to
interface
{
+Vdc
0 Vdc
Yellow/green
Yellow/green
Controller
protective earth**
Controller protective ground
A5 +Vdc
A6 0 Vdc
}
A4 screen
** Can also be referred to as ‘PE’, ‘starpoint’ or ‘earthplate’
Power input
Recommended connection diagram for TS27R with MI 8 interface
Machine tool
TS27R tool setter
Probe input
Probe+
A1
Probe-
A2
Screen
A3
Blue
TS27R probe
Red
100 nF
capacitor*
For information regarding MI 8
connections B1 and B2 to the
CNC controller and input/output
connections B3 and B4, please
refer to the MI 8 user’s guide
H‑2000-5015.
External LED +B3
External LED -B4
{
Possible earth
path through base
screws of TS27R
Machine reference ground
*
The 100 nF capacitor prevents dc and low frequency ac flowing in
the cable’s screen due to
differences in potential between the controller’s reference ground and the machine’s reference ground.
1-7
1-8
Recommended connection diagram for TS27R with MI 8-4 interface
CNC controller
MI 8-4 interface
+Vdc from I/O supply
A10 isolated output + supply
Skip input (G31)
A11 probe status output (totem pole)
-Vdc from I/O supply
A12 isolated output - supply
Screen
Yellow/green
Optional
input
B5 X- output
B6 SELX+ input
B7 X+ output
B8 SELZ-
input
B9 Z- output
B10 SELZ+ input
B11 Z+ output
Yellow/green
Power to
interface
B4 SELX-
A7 inspection select
{
A8 inhibit
+Vdc
0 Vdc
Yellow/green
Yellow/green
Controller
protective earth**
Controller protective ground
A9 input resistors common
B1 +Vdc
B2 0 Vdc
B3 screen
** Can also be referred to as ‘PE’, ‘starpoint’ or ‘earthplate’
}
Power input
Recommended connection diagram for TS27R with MI 8-4 interface
1-9
Machine tool
Screen
Probe input
A1
Probe+
A2
Probe-
A3
TS27R tool setter
Blue
TS27R probe
Red
For information regarding
these connections, please
refer to the MI 8-4 user’s
guide H‑2000-5008.
100 nF
capacitor*
Optional
Inspection system input + A4
Possible earth
path through base
screws of TS27R
Inspection
probe
interface
Inspection system input - A5
Machine reference ground
Screen A6
Inspection probe
*
The 100 nF capacitor prevents dc and low frequency ac flowing in
the cable’s screen due to differences in potential between the controller’s reference ground and the machine’s reference ground.
Fitting the stylus and captive link
1-10
Spanner 5 mm AF
2.6 Nm
(1.92 lbf.ft)
TS27R probe
Stylus
Stylus
holder
Break stem
A
Captive link
2 mm AF
1.1 Nm
(0.81 lbf.ft)
Screw torque values
Captive link
Tighten all the screws to the torque values shown,
remembering to use the support bar whenever
adding or removing parts attached to the break
stem (see page 1-11).
In the event of excessive stylus overtravel, the
break stem breaks at its weakest point, preventing
damage to the probe mechanism.
Fitting the stylus
The captive link connected to the probe and stylus
holds onto the stylus, otherwise the stylus could
fall into the machine and become lost.
The stylus is retained in the stylus holder by
tightening grubscrew A.
When a new captive link is fitted, it must be bent
to accept screw C (see page 1-11).
1-11
Break stem
Always hold the support bar in position to counteract twisting
forces and avoid over-stressing the stylus break stem.
Support bar
B
2 mm AF
1.1 Nm
(0.81 lbf.ft)
C
3 mm AF
2.6 Nm
(1.92 lbf.ft)
Stylus and holder
Place the stylus and holder onto the break stem
and loosely fit grubscrew B.
Fit screw C through the captive link and into the
stylus holder, then tighten all the screws.
Replacing the break stem
Remove the broken parts and rebuild in the
sequence shown above.
Note:
Earlier versions of the TS27R probe
were supplied with cup-pointed grubscrews and a
different break stem. Only fit current components
supplied with this probe or with the break stem
retrofit kit.
1-12
Stylus level setting
TAKE CARE not to stress the break stem
L3 and L4
Square stylus
Disc stylus
2.5 mm AF
0.8 Nm (0.6 lbf.ft)
L3
L4
Side
Back
Side
H, L1 and L2
4 mm AF
5 Nm (3.69 lbf.ft)
L1
Screw with
spring washer
L2
Front
H
H
Stylus types
Disc stylus
Square stylus Ø12.7 mm (Ø0.5 in)
19.05 mm × 19.05 mm (0.75 in × 0.75 in).
Stylus level setting
The top surface of the stylus must be set level,
front to back and side to side.
The front to back stylus level is obtained by
alternately adjusting screws L1 and L2, which
causes the probe cable end to rise or lower,
changing the stylus level setting. When a level
stylus surface is obtained, tighten screws L1 and L2.
Side to side level is obtained by alternately
adjusting grubscrews L3 and L4, which causes the
probe module to rotate and change the stylus level
setting. When a level stylus surface is obtained,
tighten screws L3 and L4.
Square stylus alignment
L3
L3 and L4
level
side to side
2.5 mm AF
0.8 Nm (0.6 lbf.ft)
R2 and R3
L4
A
Always hold the support bar in
2 mm AF
position to counteract twisting forces
1.1 Nm
and avoid over-stressing the stylus
(0.81 lbf.ft)
break stem.
coarse rotational
adjustment
for square styli Additional setting for square styli
R1
2.5 mm AF
0.8 Nm
(0.6 lbf. ft)
Fine rotational
adjustment
for square styli
R2
2.5 mm AF
0.8 Nm (0.6 lbf.ft)
1-13
R3
2.5 mm AF
0.8 Nm (0.6 lbf.ft)
Stylus level setting is the same for disc
and square styli. In addition, square
styli side faces can be aligned with the
machine’s X/Y axes.
Coarse rotational adjustment is
obtained by slackening the stylus holder
grubscrew A, rotating the stylus in its
holder, then retightening grubscrew A.
(Always use the support bar – see page
1-11.)
Fine rotational adjustment is obtained
by loosening the four grubscrews R1
and alternately adjusting the two probe
rotational adjuster screws R2 and R3
until the required tip parallelism to the
axes is achieved. Retighten grubscrews
R1, R2 and R3.
Ensure all screws are tight after
adjustment.
Service and Maintenance
1-14
Service
Maintenance
You may undertake the maintenance routines
described in this handbook.
The probe is a precision tool and must be
handled with care.
Further dismantling and repair of Renishaw
equipment is a highly specialised operation,
which must be carried out at authorised Renishaw
Service Centres.
Ensure the probe is firmly secured to its
mounting.
Equipment requiring repair, overhaul or attention
under warranty should be returned to your
supplier.
O ring
Probe serial No
Spring
Front
cover
Metal eyelid
seal
Inner diaphragm
seal
The probe requires minimal maintenance as it is
designed to operate as a permanent fixture on
CNC machining centres, where it is subject to a
hot chip and coolant environment.
1. Do not allow excessive waste material to build
up around the probe.
2. Keep all electrical connections clean.
3. The probe mechanism is protected by an
outer metal eyelid seal and an inner flexible
diaphragm seal.
Approximately once a month, inspect the
probe inner diaphragm seal. If it is pierced or
damaged, return the probe to your supplier for
repair.
The service interval may be extended or
reduced depending on experience.
1-15
Diaphragm maintenance
C spanner
4 Nm
(2.95 lbf.ft)
Spanner 5 mm AF
2.6 Nm
(1.92 lbf.ft)
Front cover
with O ring
Captive link
1. Remove the stylus and holder (see page 1-11).
2. Remove the break stem using the 5 mm AF
spanner.
3. Use a C spanner to remove the probe’s front
cover. This will expose the metal eyelid seal
and the inner diaphragm seal. Remove the
metal eyelid and spring. CAUTION – these
may fall out.
4. Wash inside the probe, using clean coolant. (DO NOT use sharp metal objects to clean
out debris.)
Break stem
5. Inspect the diaphragm seal for signs of
piercing or damage. In the event of damage,
return the probe to your supplier for repair, as
coolant entering the probe mechanism could
cause the probe to fail.
6. Refit the spring and metal eyelid (the spring’s
widest diameter is against the metal eyelid).
7. Refit the remaining components (see pages
1-10 and 1-11).
1-16
Parts list
Parts list - Please quote the Part No. when ordering equipment.
Type
Part No.
Description
TS27R (disc)
with MI 8-4
A-2008-0397
TS27R holder, probe module, break stem (× 2), disc stylus
Ø12.7 mm (Ø0.5 in) and MI 8-4 interface.
TS27R (square)
with MI 8-4
A-2008-0396
TS27R holder, probe module, break stem (× 2), square tip
stylus 19.05 mm (0.75 in) and MI 8-4 interface.
TS27R (disc)
with MI 8
A-2008-0367
TS27R holder, probe module, break stem (× 2), disc stylus
Ø12.7 mm (Ø0.5 in) and MI 8 interface.
TS27R (square)
with MI 8
A-2008-0366
TS27R holder, probe module, break stem (× 2), square tip
stylus 19.05 mm (0.75 in) and MI 8 interface.
TS27R (disc)
A-2008-0368
TS27R holder, probe module, break stem (× 2) and disc
stylus Ø12.7 mm (Ø0.5 in).
TS27R
A-2008-0388
TS27R holder, probe module, break stem (× 2) and stylus
holder (without stylus).
Break stem kit
A-5003-5171
Stylus protection kit comprising break stem, captive link,
grubscrew flat ended (× 3), caphead screw (× 2) and tools
(hexagon wrenches, spanner 5 mm AF, and support bar).
Stylus holder kit
A-2008-0389
Stylus holder kit comprising stylus holder and screws.
Stylus holder
M-2008-0378
Stylus holder.
1-17
Parts list
Type
Part No.
Description
Plinth
M-2008-1007
Spacer.
Disc stylus
A-2008-0382
Disc stylus Ø12.7 mm (Ø0.5 in), tungsten carbide, 75
Rockwell C.
Square stylus
A-2008-0384
Square tip stylus 19.05 mm (0.75 in), ceramic tip, 75
Rockwell C.
Grubscrew
P-SC11-0404
Grubscrew (flat end) for stylus holder M4 × 4 mm (two
required).
Screw
P-SC01-X406
M4 cap head screw for stylus holder (one required).
C spanner
A-2008-0332
C spanner – used for removing the probe’s front cover.
MI 8-4
A-2157-0001
MI 8-4 interface unit with dual lock pads and DIN rail
mounting.
MI 8
A-2037-0010
MI 8 interface unit with stud or foot mounting.
MI 8/DIN mount
A-2037-0020
MI 8 interface unit with DIN rail mounting.
© 1995 - 2008 Renishaw. All rights reserved.
Trademarks
This document may not be copied or reproduced in
whole or in part, or transferred to any other media
or language, by any means, without the prior written
permission of Renishaw.
RENISHAW® and the probe emblem used in the
RENISHAW logo are registered trademarks of
Renishaw plc in the UK and other countries.
The publication of material within this document
does not imply freedom from the patent rights of
Renishaw plc.
Disclaimer
Considerable effort has been made to ensure
that the contents of this document are free from
inaccuracies and omissions. However, Renishaw
makes no warranties with respect to the contents
of this document and specifically disclaims any
implied warranties. Renishaw reserves the right to
make changes to this document and to the product
described herein without obligation to notify any
person of such changes.
apply innovation and Trigger Logic are trademarks
of Renishaw plc.
All other brand names and product names used
in this document are trade names, service marks,
trademarks, or registered trademarks of their
respective owners.
Patent notice
Features of products shown in this guide,
and of related products, are the subject of the
following patents and/or patent applications:
DE 4413968
JP
EP 0695926
JP 3,561,289
GB 2277593
JPw 2002-531,839
IT 1273643
US 5,446,970
US 5,647,137
Renishaw Part no: H-2000-5018-08-A
Issued: 01.08
US 5,669,151
3877842
Renishaw plc
New Mills, Wotton-under-Edge,
Gloucestershire, GL12 8JR
United Kingdom
Draft No. 1 – circulated
03/01/08
Installation and user’s guide
H-2000-5018-08-A
T +44 (0)1453 524524
F +44 (0)1453 524901
E [email protected]
www.renishaw.com
TS27R - tool setting probe
For worldwide contact details,
please visit our main web site at
www.renishaw.com/contact
*H-2000-5018-08*
English
Deutsch
Français
Italiano
">