Transcript Co-ordinate Measuring Technology in Car Body Design and

NIST Support for Dimensional Metrology
Interface Standards
John Horst
The National Institute of Standards and Technology (USA)
ia.cmm International Conference
Sinsheim (Germany), April 28th, 2005
National Institute of Standards and Technology
NIST Metrology
Interoperability
Project team
members
28/04/2005
John Horst NIST
2
NIST Metrology
Interoperability Project team members
National Institute of Standards and Technology
NIST Support for
Dimensional Metrology
Interface Standards

Outline

What do we mean by the “interoperability problem” for
dimensional metrology?

What is NIST’s role in solving the problem?

What have been some of our successes?
28/04/2005
John Horst NIST
National Institute of Standards and Technology
3
Dimensional Metrology System with
Standard Interfaces
GD&T
Inspection
definition features and
Off-line inspection
process planning
tolerances
STEP AP219
Inspection
process
plans
Part geometry and
design tolerances
STEP AP203
2nd Edition
CAD
DMIS
Inspection Measurement Reporting Measurement Business
histories
execution
process
results
& analysis
QML??
DML
CMM Control commands
and responses
I++ DME
Coordinate
measuring
machines (CMMs)
Gage information
Proprietary, QML??
Gage
integration
NIST Support for
Dimensional Metrology
Interface Standards

Outline

What do we mean by the “interoperability problem” for
dimensional metrology?

What is NIST’s role in solving the problem?

What have been some of our successes?
28/04/2005
John Horst NIST
National Institute of Standards and Technology
5
Dimensional Metrology System with
Standard Interfaces
GD&T
Inspection
definition features and
Off-line inspection
process planning
tolerances
STEP AP219
Inspection
process
plans
Part geometry and
design tolerances
STEP AP203
2nd Edition
CAD
DMIS
Inspection Measurement Reporting Measurement Business
histories
execution
process
results
& analysis
QML??
DML
CMM Control commands
and responses
I++ DME
Coordinate
measuring
machines (CMMs)
Gage information
Proprietary, QML??
Gage
integration
NIST Support for
Dimensional Metrology
Interface Standards

The “interoperability problem”




System users cannot easily and cheaply build systems from
components
Component vendors have to support many different proprietary
interface languages
Measurement quality suffers
The interoperability solution: concurrent development of



28/04/2005
Interface standards: Timely, unambiguous, sufficiently functional,
and consensus-based
Implementations: Timely, compliant, fully functional, interoperable,
and performed by a critical mass of vendors worldwide
Tests: Product must pass conformance and interoperability tests for
purchase
John Horst NIST
National Institute of Standards and Technology
7
NIST Support for
Dimensional Metrology
Interface Standards

Outline

What do we mean by the “interoperability problem” for dimensional
metrology?

What is NIST’s role in solving the problem?

What have been some of our successes?
28/04/2005
John Horst NIST
National Institute of Standards and Technology
8
NIST Support for
Dimensional Metrology
Interface Standards


Provide leadership, analysis, consultation, and testing support;
working through

AIAG MIPT

I++ & IA.CMM

DNSC & EDUG
Regular and frequent implementers meetings to ensure

Compliant implementations

Consistent, unified, and documented feedback to spec writers to
ensure unambiguous and sufficiently functional spec
28/04/2005
John Horst NIST
National Institute of Standards and Technology
9
NIST Support for
Dimensional Metrology
Interface Standards

Write test suites consisting of test cases, test utilities, test artifacts,
and example code modules for enabling new implementations

Public interoperability tests to further encourage compliant
implementations and unambiguous spec
28/04/2005
John Horst NIST
National Institute of Standards and Technology
10
I/F Standards Test Development
NIST
Can this specification
Conformance Why aren’t our two implementations
support what my software
communicating well?
Testing
can do?
How do I need to
augment my product
How well does this vendor’s
to conform?
software conform to the standard?
Specification Writers
Software and Hardware Vendors
NIST Support for
Dimensional Metrology
Interface Standards

Outline

What do we mean by the “interoperability problem” for dimensional
metrology?

What is NIST’s role in solving the problem?

What have been some of our successes?
28/04/2005
John Horst NIST
National Institute of Standards and Technology
12
The Measurement Results Interface
GD&T definition
Inspection
features and
tolerances
STEP AP219
Part geometry and
design tolerances
STEP AP203
2nd Edition
CAD
Off-line inspection
process planning
Business
process
Inspection
process
plans
DMIS
Inspection
execution
CMM control commands
and responses
I++ DME
Measuremen
t
results
DML
Reporting
& analysis
Gage information
Proprietary
Gage integration
Coordinate measuring
machines (CMMs)
Measurement
histories
QML
NIST Support for
Dimensional Metrology
Interface Standards

The Measurement Results Interface

Impact



Highlights


28/04/2005
NIST CRADA partner, Mitutoyo, recently delivered a DML compliant product
to GE Transportation; CRADA partners DCS, LK, and Tecnomatix have
working products at Daimler Chrysler
Daimler Chrysler has performed tests with several other DML compliant
products (Wilcox, Zeiss, Metrix, Cognitens, Capture3D)
Successful 2  1 connection interoperability test at IMTS
Successful 3  3 connection interoperability test at Quality Expo 2005 in
Chicago
John Horst NIST
National Institute of Standards and Technology
14
The Inspection Process Plan Interface
GD&T definition
Inspection
features and
tolerances
STEP AP219
Part geometry and
design tolerances
STEP AP203
2nd Edition
Off-line
inspection
process
planning
Inspection
process
plans
DMIS
Inspection
execution
CAD
CMM control commands
and responses
I++ DME
Measurement
results
DML
Reporting
& analysis
Gage information
Proprietary
Gage integration
Coordinate measuring
machines (CMMs)
Measurement
histories
QML
Business
process
NIST Support for
Dimensional Metrology
Interface Standards

The Inspection Process Plan Interface

Impact




28/04/2005
DMIS is implemented by a majority of CMM software vendors
worldwide
DMIS conformance classes defined
The DMIS National Standards Committee (DNSC) approved
NIST’s design for a DMIS conformance test suite and
unanimously signed an appeal urging NIST support for
conformance test generation
The DNSC, EDUG, and I++ DME groups are making
substantive progress towards harmonization with I++ DME
John Horst NIST
National Institute of Standards and Technology
16
CAD and GD&T Data Interfaces
GD&T
definition
Inspection
features
and
tolerances
STEP AP219
Off-line
inspection
process
planning
Part geometry
and design
tolerances
STEP AP203
2nd Edition
CAD
Business
process
Inspection
process
plans
DMIS
Inspection
execution
CMM control commands
and responses
I++ DME
Measurement
histories
QML
Measurement
results
DML
Reporting
& analysis
Gage information
Proprietary
Gage integration
Coordinate measuring
machines (CMMs)
NIST Support for
Dimensional Metrology
Interface Standards

The CAD and GD&T data Interface

Impact


28/04/2005
A draft vision for enabling open interface standards and
implementations generally accepted by the community (MIPT)
CRADAs at NIST have begun with key software vendors
John Horst NIST
National Institute of Standards and Technology
18
The Dimensional Measuring Equipment (DME)
Interface
GD&T definition
Inspection
features and
tolerances
STEP AP219
Part geometry and
design tolerances
STEP AP203
2nd Edition
CAD
Off-line inspection
process planning
Inspection
process
plans
DMIS
Inspection
execution
Measurement
results
DML
CMM control
commands
and responses
I++ DME
Coordinate
measuring
machines (CMMs)
Reporting
& analysis
Measurement
histories
QML
Gage information
Proprietary
Gage integration
Business
process
NIST Support for
Dimensional Metrology
Interface Standards

The Dimensional Metrology Equipment Interface

Impact



28/04/2005
Most of the key coordinate measuring machine (CMM) hardware
and software vendors worldwide now have implementations of I++
DME and are using NIST test utilities
Two new test suite versions released (bootstrapping
implementations)
CRADA partners Zeiss and Wenzel as well as Renishaw have
announced I++ DME compliant products
John Horst NIST
National Institute of Standards and Technology
20
NIST Support for
Dimensional Metrology
Interface Standards

The Dimensional Metrology Equipment Interface

Problems resolved

28/04/2005
The appearance of I++ DME-compliant implementations
– Two new test suite versions released (bootstrapping
implementations)
– Zeiss, Wenzel, Renishaw and others have announced I++ DME
compliant products
John Horst NIST
National Institute of Standards and Technology
21
NIST Support for
Dimensional Metrology
Interface Standards
Successful Demonstrations of Metrology
System Component Interoperability at the
International Manufacturing and
Technology Show (IMTS)
Chicago, September 2004
Quality Expo 2005
Chicago, April 2005
Control 2005
Sinsheim, April 2005
28/04/2005
John Horst NIST
National Institute of Standards and Technology
22
Distributed Interoperability Testing
LK/UK
Tecnomatix/USA
NIST/USA
Mitutoyo/Germany
Zeiss/Germany
Wilcox/France
Wilcox/Italy
Interoperability Demo at IMTS (Sept, 2004) for the
DME Interface using I++ DME
Zeiss
Calypso
Camio
Wenzel
emMeasure
Sheffield
Metrologic
Metrosoft
PC-DMIS