Renishaw MIH User manual

MIH
User’s Guide
H-1000-5200-07-D
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CARE OF EQUIPMENT
Renishaw probes and associated systems are precision tools used
for obtaining precise measurements and must therefore be treated
with care.
CHANGES TO EQUIPMENT
Renishaw reserves the right to improve, change or modify its
hardware or software without incurring any obligations to make
changes to Renishaw equipment previously sold.
WARRANTY
Renishaw plc warrants its equipment provided that it is installed
exactly as defined in associated Renishaw documentation.
Prior consent must be obtained from Renishaw if non-Renishaw
equipment (e.g. interfaces and/or cabling) is to be used or substituted
for Renishaw equipment. Failure to comply with this will invalidate
the Renishaw warranty.
Claims under warranty must be made from Authorised Service
Centres only, which may be advised by the supplier or distributor.
PATENTS
The features of Renishaw's Manual Indexable Head and associated
products are the subject of the following patents, patent applications
and registered designs.
Patents and patent applications -
EP 0142373 JP 339/1966
EP 0293036 JP 1735296
EP 0293660 JP 2,084,393
EP 0392699 JP 293602/1990
JP 293613/1990
Registered designs -
DE M8906859.9 FR 278857 GB 1058954
US Des 327854

© 2001 Renishaw
MIH
User's Guide
H-1000-5200-07-D
SALES & SERVICE:
A Tech Authority, Inc.
13745 Stockton Ave.
Chino CA 91710
909-614-4522
[email protected]

2 MIH User’s Guide
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
frequencyenergy and, if not installedand used in accordance
with the installation manual, 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.
Special accessories (FCC Section 15.27)
The user is also cautioned that any peripheral device
installed with this equipment such as a computer, must be
connected via a high-quality shielded cable to insure
compliance with FCC limits.
FCC
FCC
(U.S.A.)

MIH User’s Guide 3
GB
Beware of unexpected movement. The user should remain outside of the
full working envelope of probe head/extension/probe combinations.
Handle and dispose of batteries according to the manufacturer's
recommendations. Use only the recommended batteries. Do not allow the
battery terminals to contact other metallic objects.
For instructions regarding the safe cleaning of Renishaw products refer to
the MAINTENANCE section of the relevant product documentation.
Remove power before performing any maintenance operations.
Refer to the machine supplier's operating instructions.
F
Attention aux mouvements brusques. L'utilisateur doit toujours rester en
dehors de la zone de sécurité des installations multiples tête de palpeur/
rallonge/palpeur.
Suivre les conseils du fabricant pour manipuler et jeter les batteries. Utiliser
uniquement les batteries recommandées. Veiller à ce que les bornes de la
batterie n’entrent pas en contact avec d’autres objets métalliques.
Les conseils de nettoyage en toute sécurité des produits Renishaw figurent
dans la section MAINTENANCE de votre documentation.
Mettre la machine hors tension avant d'entreprendre toute opération de
maintenance.
Consulter le mode d’emploi du fournisseur de la machine.
User/Supplier information

4 MIH User’s Guide
D
Auf unerwartete Bewegungen achten. Der Anwender soll sich immer
außerhalb des Meßtasterkopf-Arm-Meßtaster-Bereichs aufhalten.
Batterien immer gemäß den Anleitungen des Herstellers handhaben und
diesevorschriftsmäßigentsorgen.Nurdieempfohlenen Batterienverwenden.
Die Batterieklemmen nicht in Kontakt mit metallischen Gegenständen
bringen.
Anleitungen über die sichere Reinigung von Renishaw-Produkten sind in
Kapitel WARTUNG (MAINTENANCE) in der Produktdokumentation
enthalten.
Bevor Wartungsarbeiten begonnen werden, muß erst die Stromversorgung
getrennt werden.
Beziehen Sie sich auf die Wartungsanleitungen des Lieferanten.
I
Fare attenzione ai movimenti inaspettati. Si raccomanda all'utente di tenersi
al di fuori dell’involucro operativo della testina della sonda, prolunghe e altre
varianti della sonda.
Trattare e smaltire le pile in conformità alle istruzioni del fabbricante. Usare
solo pile del tipo consigliato. Evitare il contatto tra i terminali delle pile e
oggetti metallici.
Per le istruzioni relative alla pulizia dei prodotti Renishaw, fare riferimento
alla sezione MANUTENZIONE (MAINTENANCE) della documentazione
del prodotto.
Prima di effettuare qualsiasi intervento di manutenzione, isolare
dall’alimentazione di rete.
Consultare le istruzioni d’uso del fabbricante della macchina.
User/Supplier information

MIH User’s Guide 5
E
Tener cuidado con los movimientos inesperados. El usuario debe quedarse
fuera del grupo operativo completo compuesto por la cabeza de sonda/
extensión/sonda o cualquier combinación de las mismas.
Las baterías deben ser manejadas y tiradas según las recomendaciones
del fabricante. Usar sólo las baterías recomendadas. No permitir que los
terminales de las mismas entren en contacto con otros objetos metálicos.
Para instrucciones sobre seguridad a la hora de limpiar los productos
Renishaw, remitirse a la sección titulada MANTENIMIENTO (MAINTENANCE)
en la documentación sobre el producto.
Quitar la corriente antes de emprender cualquier operación de
mantenimiento.
Remitirse a las instrucciones de manejo del proveedor de la máquina.
P
Tomar cuidado com movimento inesperado. O utilizador deve permanecer
fora do perímetro da área de trabalho das combinações Cabeça da Sonda/
Extensão/ Sonda.
Manusear e descartar baterias de acordo com as recomendações do
fabricante. Utilizar apenas as baterias recomendadas. Não permitir que os
terminais da bateria entrem em contacto com outros objectos metálicos.
Para instruções relativas à limpeza segura de produtos Renishaw, consultar
a secção MANUTENÇÃO (MAINTENANCE) da documentação do produto.
Desligar a alimentação antes de efectuar qualquer operação de
manutenção.
Consultar as instruções de funcionamento do fornecedor da máquina.
User/Supplier information

6 MIH User’s Guide
User/Supplier information
DK
Pas på uventede bevægelser. Brugeren bør holde sig uden for hele
sondehovedets/forlængerens/sondens arbejdsområde.
Håndtér og bortskaf batterier i henhold til producentens anbefalinger.
Anvend kun de anbefalede batterier. Lad ikke batteriterminalerne komme
i kontakt med andre genstande af metal.
Se afsnittet VEDLIGEHOLDELSE (MAINTENANCE) i produkt-
dokumentationen for at få instruktioner til sikker rengøring af
Renishaw-produkter.
Afbryd strømforsyningen, før der foretages vedligeholdelse.
Se maskinleverandørens brugervejledning.
NL
Oppassen voor onverwachte beweging. De gebruiker dient buiten het
werkende signaalveld van de Sondekop/Extensie/Sonde combinaties te
blijven.
De batterijen volgens de aanwijzingen van de fabrikant hanteren en
wegdoen. Gebruik uitsluitend de aanbevolen batterijen. Zorg ervoor dat de
poolklemmen niet in contact komen met andere metaal-houdende
voorwerpen.
Voor het veilig reinigen van Renishaw produkten wordt verwezen naar het
hoofdstuk ONDERHOUD (MAINTENANCE) in de produktendocumentatie.
Voordat u enig onderhoud verricht dient u de stroom uit te schakelen.
De bedieningsinstructies van de machineleverancier raadplegen.

MIH User’s Guide 7
SW
Se upp för plötsliga rörelser. Användaren bör befinna sig utanför
arbetsområdet för sondhuvudet/förlängningen/sond-kombinationerna.
Hanteraochavyttrabatterier i enlighet med tillverkarens rekommendationer.
Använd endast de batterier som rekommenderas. Låt ej batteriuttagen
komma i kontakt med andra metallföremål.
För instruktioner angående säker rengöring av Renishaws produkter, se
avsnittet UNDERHÅLL (MAINTENANCE) i produktdokumentationen.
Koppla bort strömmen innan underhåll utförs.
Se maskintillverkarens bruksanvisning.
FIN
Varo äkillistä liikettä. Käyttäjän tulee pysytellä täysin anturin pään/jatkeen/
anturin yhdistelmiä suojaavan toimivan kotelon ulkopuolella.
Käytä paristoja ja hävitä ne valmistajan ohjeiden mukaisesti. Käytä
ainoastaan suositeltuja paristoja. Älä anna paristonapojen koskettaa muita
metalliesineitä.
Renishaw-tuotteiden turvalliset puhdistusohjeet löytyvät tuoteselosteen
HUOLTOA (MAINTENANCE) koskevasta osasta.
Kytke pois sähköverkosta ennen huoltotoimenpiteitä.
Katso koneen toimittajalle tarkoitettuja käyttöhjeita.
User/Supplier information

8 MIH User’s Guide
User/Supplier information

MIH User’s Guide 9
Contents
Page
1.0 INTRODUCTION 10
Features
2.0 DOS AND DON’TS 11
3.0 MAJOR COMPONENTS 12
Front - Back - LCD display
4.0 INSTALLATION 16
Fitting the battery - Fitting the probe -
Connection - Quill mounting
5.0 USING THE MIH 18
Unlocking the head - Locking the head -
Positioning the head
6.0 THE LCD /SOFTWARE FACILITY 20
Introduction - Datum mode - Simple mode -
Memory mode - Sequence mode
7.0 SUMMARY OF BUTTON OPERATION 42
8.0 ACCESSORIES 45
9.0 DIMENSIONS 48
10.0 MECHANICAL SPECIFICATION 48
11.0 ELECTRICAL SPECIFICATION 49
Battery life
12.0 TROUBLESHOOTING GUIDE 50
13.0 MIH SELF TEST 52
14.0 MAINTENANCE 54
Contents

10 MIH User’s Guide
1.0 INTRODUCTION
The Renishaw Manual Indexable Head (MIH) is a compact
manual probe head which offers the flexibility and time
saving normally associated with direct computer controlled
(DCC) machines and motorised probe heads.
The MIH is adjustable in two axes, both of which can be
unlocked by a single thumbwheel operation. A probe/stylus
combination can be orientated to 720 different positions and,
once the head is locked, each position will be repeatable to
1µm* (0.00004in) (2σ). Hence the user can return to any
chosen position without having to requalify the probe/stylus tip.
The current position is shown on the integral liquid crystal
display (LCD) and is constantly updated during moves.
The programmable memory facility allows pre-datumed
positions to be stored in a memory within the head. Direction
arrows shown on the LCD lead the user back to any one of
20 memorised positions. Memorised head positions can be
arranged in any order to suit a particular sequence of
inspection. The sequence can be re-edited as required and
the direction arrows will lead the user, step-by-step, through
the sequence.
Probes are attached to the MIH by means of a Renishaw
Autojoint, allowing the user to easily exchange probes whilst
maintaining repeatability to 0.5µm* (0.00002in) (2σ). The
Autojoint is recessed into the head, thus maximising the
valuable working volume of the machine.
° Manually indexable in 2 axes
° Positionally repeatable to 1µm* (0.00004in) (2σ)
° 720 selectable positions
° Head mounted LCD display
° Programmable memory function
° Simple operation
° Compact size
° Renishaw Autojoint probe mounting
° No special installation required
* Measured at 67mm (2.64in) from Autojoint (TP6A probe with
21mm (0.83in) stylus).
1.1
The MIH
1.2
Features
Introduction

MIH User’s Guide 11
Dos and don’ts
2.0 DOS AND DON’TS
DO mount the head as rigidly as possible in the CMM quill
DO ensure that the head is properly locked before attempting
to use the probe to take points
DO support probe/extension set-ups of longer than 150mm
by hand when locking or unlocking the head
DO disarm the head during moves if possible
DO change the battery when low battery indicator is ON
DO reposition the head by moving only one axis at a time
DO unlock and relock the head after a probe change
DO NOT rotate the head axes by holding the probe stylus
DO NOT move the CMM by holding the head
DO NOT attempt to use a probe whilst the head is unlocked
DO NOT leave the head unlocked for long periods
DO NOT attempt to use probe extensions over 300mm long
DO NOT attempt to lock the head in an overtravel position
DO NOT move the axes beyond overtravel positions

12 MIH User’s Guide
3.0 MAJOR COMPONENTS
1 Mounting shank
2 Lock/unlock thumbwheel
3 LCD display
4 Probe status LED
5 LCD memory programming buttons
6 Probe Autojoint lock/unlock access window
7 Renishaw Autojoint probe mounting (recessed into A
axis swivel)
8 A axis zero position markers
9 B axis zero position markers
10 Battery housing
11 5-pin DIN connector
12 Serial number
3.1
MIH front
Figure 1
3.2
MIH back
Figure 1
Major components

MIH User’s Guide 13
Major components
Figure 1
B axis
A axis

14 MIH User’s Guide
LCD display
13 A axis positional data (0°to +105°)
14 B axis positional data (-180°to +180°)
15 Low battery indicator
16 Head locked symbol
17 Rotation direction arrows
18 Position confirmation symbol
19 Sequence store indicator
20 Memory mode indicator
21 Memory number
3.3
LCD
display
Figure 2

MIH User’s Guide 15
LCD display
Figure 2

16 MIH User’s Guide
4.0 INSTALLATION
1. Move MIH to axis positions A0.0, B0.0 and lock up
2. Unscrew housing retaining screw
3. Open housing door
4. Insert battery as shown (negative end first)
5. Close door and secure retaining screw (do not overtighten)
6. Reset datum (See Datum mode, section 6.2)
NOTE
Incorrect insertion of the battery will not cause
damage to the MIH
1. Offer up the female Autojoint with key slot facing as
shown
2. Using an S10 Autojoint key, insert into access hole and
locate blade in key slot
3. Rotate clockwise to lock the Autojoint
4. Once qualified, probe/stylus combinations may be
interchanged without the need to re-qualify
5. After changing a probe, unlock and re-lock the head to
ensure repeatability
Insert Renishaw 5-pin DIN plug into socket
Pin connections: 1 - Head LED cathode
2 - Ground
3 - Head LED anode
4 - Probe circuit
5 - Probe circuit
Ensure that the head is securely mounted onto the CMM
quill. Any rotational movement occurring during use will
result in a loss of repeatability of positional data.
WARNING
Always fit mounting shanks with the screws
supplied (M3 x 5mm (0.20in) long). The use of
incorrect screws may cause serious internal
damage to the head.
Installation
4.1
Fitting the
battery
Figure 3
!
4.2
Fitting the
probe
Figure 4
4.3
Connection
Figure 5
4.4
Quill
mounting

MIH User’s Guide 17
Figure 5
Installation
Figure 4Figure 3
Key slot

18 MIH User’s Guide
5.0 USING THE MIH
Both A and B axes are unlocked by a single turn of the
thumbwheel in a counter-clockwise direction. The locked
(key) symbol on the LCD will disappear. The head detent will
not support extensions longer than 150mm (5.91in) and
these must be supported by hand when unlocking.
To lock the head correctly after positioning, support the
probe (and extension, if fitted) and turn the thumbwheel
clockwise until a positive "click" is felt. A correct "lock-up" is
confirmed by the appearance of the key symbol on the LCD.
To ensure repeatability, it is important to simply support the
probe/extension during lock-up and NOT to constrain it.
NOTE
Do not leave the head unused in an unlocked
position as this will shorten battery life.
Rotation of each axis is achieved against a built-in detent
mechanism. This provides the user with discreet 7.5°
incremental positions so that the head cannot be locked in
a non-repeatable position.
The detent also provides limited support for probe/extension
combinations when the head is unlocked.
The B axis is positioned by holding the lower housing and
rotating until the required position is reached.
The A axis is positioned by holding the probe or extension
body as close to the head as possible and rotating until the
required position is reached.
To ensure maximum repeatability, each axis should be
moved separately, and should not be moved beyond
overtravel positions.
CAUTION
Do not change axis positions by holding the
stylus, as this will cause damage to the probe.
Using the MIH
5.1
Unlocking
the head
Figure 6
5.2
Locking
the
head
5.3
Positioning
the head
Figure 7
!