Renishaw MP7 Manual de usuario

Renishaw plc

New Mills, Wotton-under-Edge,

Gloucestershire, GL12 8JR

United Kingdom

T+44 (0)1453 524 524

F+44 (0)1453 524 901

E[email protected]

www.renishaw.com

Installation and user’s guide

H-2000-5085-02-I

MP7 - MP8 - MP9 probe systems

For worldwide contact details, please

visit our main website at

www.renishaw.com/contact

*H-2000-5085-02*

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.

The publication of material within this

document does not imply freedom from

the patent rights of Renishaw plc.

Renishaw part no: H-2000-5085-02-I

Issued: 11. 2004

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.

Trademarks

Renishaw® and the probe emblem used in the

RENISHAW logo are registered trademarks of

Renishaw plc in the UK and other countries.

apply innovation is a trademark of

Renishaw plc.

All brand names and product names used in

this document are trade names, service marks,

trademarks, or registered trademarks of their

respective owners.

Installation and user's guide

MP7 - MP8 - MP9 probe systems

FCC Section 15.19

This device complies with Part 15 of the FCC

rules.

Operation is subject to the following two

conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference

received, including interference that may cause

undesired operation.

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 the instruction 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.

FCC DECLARATION (USA)

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.

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 high-quality

shielded cable to insure compliance with FCC

limits.

Installation and users guide

CARE OF THE PROBE

Keep system components clean and treat the

probe as a precision tool.

CHANGES TO EQUIPMENT

Renishaw reserves the right to change

specifications without notice.

PROBE IP RATING X8

CNC MACHINE

CNC machine tools must always be operated by

competent persons in accordance with

manufacturers instructions.

PATENT NOTICE

Features of MP7-8-9 probes and features of similar

probes are the subjects of the following patents

and or patent applications.

EP 0390342 JP 2,945,709 US 5,040,931

EP 0695926 US 5,669,151

MP 7 - 8 - 9 PROBE SYSTEMS

The probe touch-trigger mechanism and operating

envelope are common to all types. However to suit

different operational requirements, each type

incorporates a unique probe switch-on/switch-off

method.

MP7 Spin-on/spin-off.

MP8 Shank pressure switch-on/switch off.

MP9 Spin-on/timer-off.

MP7 - MP9 CENTRIFUGAL SWITCH

The centrifugal switch incorporated in MP7 and

MP9 probes rattles when the probe body is

shaken. This is quite normal and should not be

the cause of any concern.

WARRANTY

Equipment requiring attention under warranty

must be returned to your supplier. No claims will

be considered where the probe has been misused,

or repairs or adjustments have been attempted by

unauthorised persons.

OPERATOR

MP8 probes should only be

rotated by hand or standard

spindle orientation, when

mounted in the machine spindle.

SAFETY

ELECTRICAL

Only qualified persons should

adjust switches or replace fuses.

Remove the mains supply from

units before removing covers.

4Contents

Software for machining centres (simple to

use canned cycles for basic features) ...23

MP7 - 8 - 9 modes of operation ..............25

MP7 - 8 - 9 switch-on / switch-off .......... 25

MP7 - 9 spin on ........................................26

MP8 shank switch on...............................27

Gauging moves for probe ........................28

MP7 spin off..............................................29

SERVICE and MAINTENANCE..............30

Weak link for styli with steel shaft ...........30

Diaphragm inspection ..............................31

Diaphragm replacement ..........................32

SCREW TORQUE VALUES ...................33

FAULT FINDING..................................... 35

APPENDIX 1 Adaptor and

Extensions................................................38

APPENDIX 2 power supply

unit (PSU3) ...............................................39

APPENDIX 3 optical module

machine (OMM) .......................................39

APPENDIX 4 MI 12 interface unit ............40

APPENDIX 5 optical module

interface (OMI) .........................................41

PARTS LIST ............................................43

SYSTEM INSTALLATION

Typical probe systems ............................5

Two OMM's and remote indicator ...........6

System performance ...............................7

Operating envelope..................................8

Probe features .........................................9

MP7 - 9 with centre ball adjustment .......10

MP7 - 9 with adjusting plate ....................11

MP7 - 9 with adjusting plate and

taper shank ..............................................12

MP8 with adjusting plate and

taper shank ..............................................13

MP8 probe/shank units ........................... 14

MP7 - 8 - 9 enhanced trigger circuit.......15

MP7 - 8 - 9 stylus spring pressure

adjustment ................................................16

MP7 - 8 - 9 battery covers and battery..17

MP7 - 8 - 9 stylus on-centre adjustment

using adjustment plate .............................19

MP7 - 8 - 9 stylus on-centre adjustment

using centre ball .......................................20

OPERATION

Probe moves ............................................21

Software requirements.............................22

Workpiece

Probe head

Stylus

Machine spindle

Typical tool

setting probe

OMM - Optical module machine

OMP - Optical module probe

OMI - Optical machine interface

CNC

machine

control

Cable

Battery

cover

Shank

(size 25-50)

Optional - PSU3

power supply unit

Optional - PSU3

power supply unit

7 x transmission LEDs

OMP - LEDs

Mounting bracket

OMI (one only)

+ CNC control

Optional - PSU3

power supply unit

MP7 - 8 - 9

inspection

probe

OMM

(one or two)

+ MI 12

+ CNC control

TYPICAL PROBE SYSTEMS

see pages 39 and 41

A workpiece set-up and inspection probe is in effect another tool

in the system. A probe cycle may be included at any stage of the

machining process.

Signals are transmitted between the probe and the machine’s

control, via the OMP and OMM + MI 12 or alternatively the OMP and

OMI.

MI 5, MI 8 or MI 8-4

interface unit

MI 12 interface unit

or MI 12 board

CNC machine

control

MI 12

OMM 1

OMM 2 Spindle

travel

OMM 2

OMM 1

MI 12

Remote

indicator

CNC machine

control

OMM TWIN MOUNTING

Each spindle of a twin spindle

machine can accept a

probe. Although both

OMM 1 and OMM 2

are switched on, only

one probe may be

used at any one time.

OMM TANDEM MOUNTING

Installations with exceptionally long

spindle travel, may require a second

OMM to cover signal reception over

the full working envelope of the probe.

The reception cones of OMM 1

and OMM 2 overlap, so they

act as one receiver.

REMOTE INDICATOR

When the probe contacts a surface

an MI 12 LED changes state and a

bleep is emitted.

If the MI 12 is hidden from the

operator, a remote lamp or bleeper

may be placed in a position where

it is easily seen or heard.

TWO OMMs and REMOTE INDICATOR

PROBE REPEATABILITY

Maximum 2 sigma (2σσ

σσ

σ) value

Repeatability of 1.0 µm (40 µin) is valid for

test velocity of 480 mm/min (1.57 ft/min) at

stylus tip, using stylus 50 mm (1.97 in) long.

STYLUS TRIGGER FORCE

Set at factory using stylus 50 mm (1.97 in) long.

X and Y trigger forces vary around the stylus seating.

X/Y direction lowest force 0.75 N/75 gf (2.64 ozf)

X/Y direction highest force 1.4 N/140 gf (4.92 ozf)

Z direction force 4.2 N/420 gf (14.83 ozf)

STYLUS OVERTRAVEL

See page 21

OPTICAL SIGNAL RANGE

Minimum 10 mm (0.39 in)

Maximum 3 metres (9.84 ft)

SYSTEM PERFORMANCE

Shelf life 2.1/2 years at 20 °C (68 °F)

TEMPERATURE

Operating 10 °C to 40 °C (50 °F to 104 °F)

Operating life See page 18

TMDuracell Trademark of Duracell Batteries Ltd.

Operating 5 °C to 50 °C

(41 °F to 122 °F)

Storage –10 °C to 70 °C

(14 °F to 158 °F)

PROBE/OMP

OMM

MI 12 INTERFACE

OMI

PSU3

ENVIRONMENT

TEMPERATURE Storage

- Short term –30 °C to 70 °C (–22 °F to 158 °F)

- Long term 5 °C to 40 °C (41 °F to 104 °F)

BATTERY

OPERATING ENVELOPE

Natural reflective surfaces within the machine may

increase the signal transmission range.

Coolant residue accumulating on the OMP diodes

and OMM or OMI window, will have a detrimental

effect on transmission performance. Wipe clean as

often as is necessary to maintain unrestricted

transmission.

Operation in temperatures of 0 °C to 5 °C or 50 °C

to 60 °C (32 °F to 41 °F or 122 °F to 140 °F) will

result in some reduction in range.

WARNING

If two systems are operating in close proximity, take

care to ensure that signals transmitted from the

OMP on one machine, are not received by the OMM

or OMI on the other machine, and vice versa.

OMM and OMI POSITION

To assist finding the optimum position of the OMM

during system installation, signal strength outputs

are available on the MI 12 interface.

OMI signal strength is displayed on an OMI

multi-coloured LED.

TMDuracell MN1604

OMP

OMM

OMI

VERTICAL

HORIZONTAL

Optical centre line

Spindle travel

Beams must always overlap

3 metres (9.84 ft)

1 metre (3.28 ft)

OMP±10°

2 metres (6.56 ft)

35° 70°

OMP±15°

OMM ±20°

OMP

±20°

OMM ±10°

OPERATING ENVELOPE for MP7 - 8 - 9 PROBES with 35° or 70° OUTPUT

OMI ±15°

OMI

±25°

OMI±20°

OMM ±15°

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