WO2024003120A1 - Procédé de fonctionnement d'un dispositif de mesure de coordonnées et appareil pour la mise en oeuvre du procédé - Google Patents

Procédé de fonctionnement d'un dispositif de mesure de coordonnées et appareil pour la mise en oeuvre du procédé Download PDF

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Publication number
WO2024003120A1
WO2024003120A1 PCT/EP2023/067613 EP2023067613W WO2024003120A1 WO 2024003120 A1 WO2024003120 A1 WO 2024003120A1 EP 2023067613 W EP2023067613 W EP 2023067613W WO 2024003120 A1 WO2024003120 A1 WO 2024003120A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
geometric properties
elements
workpiece
measuring
Prior art date
Application number
PCT/EP2023/067613
Other languages
German (de)
English (en)
Inventor
Ralf Christoph
Raoul CHRISTOPH
Manfred Voss
Original Assignee
Werth Messtechnik Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Werth Messtechnik Gmbh filed Critical Werth Messtechnik Gmbh
Publication of WO2024003120A1 publication Critical patent/WO2024003120A1/fr

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/401—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
    • G01B11/005—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates coordinate measuring machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
    • G01B21/047—Accessories, e.g. for positioning, for tool-setting, for measuring probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/004—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points
    • G01B5/008—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4093—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37448—Inspection process planner

Definitions

  • the subject of the invention is a method for generating and processing data associated with workpieces and a device for carrying out the method with a data processing device which is designed to create measurement programs for a coordinate measuring machine or computer tomograph.
  • PMI data includes the definition of the design data and, in some cases, the specifications for calculation rules on how measured values should be linked to geometric properties during later measurements with a (previously unknown) measuring device. These are simple arithmetic operations like “ or “Gauss Fit” to form distances or fit lines, fit planes, etc. and which references should be taken into account. These are attached to the PMI data in the form of so-called “PMI flags” and can be read in by appropriately designed measuring device software. Subsequently changing this PMI data, supplementing missing data via the measurement process and linking PMI data to calculate linked geometric properties is not known, nor is exporting supplemented PMI data to a PMI data source.
  • the link between the PMI data and the information about the measuring device used and the evaluation regulations necessary for generating the measurement data is inadequate according to the state of the art, which means that automated measurement based on the PMI data previously determined by, for example, the designer, but itself a semi-automatic measurement with operator intervention is not possible or only possible with great effort.
  • the data required for the measurement process is not yet available when the PMI data is created.
  • Known software that exists to create the PMI data has no connection and no information about the measuring device to be used later to measure the geometric features tolerated in the drawings. It is therefore not possible to define information for the measurement process (also called measurement process data) in the PMI data.
  • This information relates, among other things, to the type of measuring device, in particular the sensor of a coordinate measuring machine to be used, its measuring parameters or setting parameters, the measuring instructions for the position and linking of the measuring points on the workpiece to be recorded for the evaluation of the respective geometric properties of the workpiece, but also the Linking dimensions to linked geometric properties.
  • PMI data There is therefore no option to store evaluation regulations in the PMI data. It is also unresolved that if CAD data is missing, PMI data can be stored and that missing PMI data can be supplemented and stored in the PMI data source and thus passed on, for example between different measuring devices.
  • target elements or measuring elements may be missing for the calculation of geometric properties, for example because they were not stored in the PMI data (e.g. planes of symmetry or measuring elements to be measured to form them) or during export one to generate PMI data suitable software or import into software intended for processing the PMI data has been lost or the link between target elements (such as symmetry planes) and the formation of these measuring elements to be measured has been lost.
  • target elements or measuring elements that are incorrectly assigned to determine the geometric property (e.g. dimensioned edge instead of dimensioned distance between two surfaces) or target elements that cannot be measured (e.g. planes of symmetry).
  • Elements that are mostly not measurable are, for example, tolerated planes of symmetry on the workpiece. These are usually not physically present on the workpiece and therefore cannot be measured. Instead, elements physically present on the workpiece, such as planes, i.e. surfaces, would have to be used as measuring elements and these would have to be assigned to the symmetry planes or replace them. However, the state of the art does not offer a corresponding functionality.
  • a further object of the present invention is therefore to further develop the known method for generating PMI data in such a way that data required for the later measurement of geometric properties of the workpiece can be assigned to the workpiece or its PMI data, and that PMI -Data can be edited, in particular supplemented or corrected, and stored in the PMI data source. It is also the task of assigning data obtained through measurement with a measuring device or through input by an operator to the PMI data, i.e. the PMI data source of the workpiece.
  • the invention provides that software designed to create, and preferably execute, measuring programs for measuring geometric properties of the workpiece with a coordinate measuring machine is expanded to include functionality for generating and/or processing PMI data.
  • coordinate measuring machine also means: multi-sensor coordinate measuring machine, computer tomograph and computer tomograph designed as a coordinate measuring machine or multi-sensor coordinate measuring machine.
  • the software according to the invention also has a functionality that allows the supplemented or edited PMI data to be saved or exported to a PMI data source.
  • a method according to the invention for generating and/or processing data associated with workpieces is characterized in that the generation and/or processing of the PMI data and preferably the measurement process data is carried out automatically by software and/or is carried out at least partially manually by an operator in software, the software being designed to create, and preferably execute, a measurement program generated from at least part of the PMI data for a coordinate measuring machine, preferably multi-sensor, designed to measure the geometric properties of the workpiece.
  • PMI data also includes, among other things, target data of the workpiece, often in the form of CAD data and/or target elements that describe the target shape of the workpiece (target description). These are assigned to the workpiece or the individual elements of the workpiece.
  • Geometric properties or geometric descriptions of the workpiece refer to the geometric dimensions, angles, distances, etc. of individual workpiece areas that are defined based on the target shape of the workpiece or determined by measuring the actual shape of the workpiece.
  • Geometric properties or geometric descriptions are represented in the form of measuring elements, hand elements and computing elements, which include, for example, points, straight lines, circles, planes, spheres, distances, angles, etc. or positions, orientations and/or dimensions assigned to them.
  • Measuring elements are geometric descriptions that are measured, hand elements entered by the operator and calculation elements from measuring elements and/or hand elements and/or calculation elements.
  • the invention is characterized in that the software is designed for dimensioning, in particular dimensioning based on the PMI data, CAD models, CAD elements (CAD model elements), assigned to workpieces or geometric properties of workpieces -Elements, measuring elements, hand elements and/or computing elements.
  • Dimensioning means, among other things, that the geometric properties of the workpiece to be evaluated are selected automatically, semi-automatically (i.e. with the support of the operator) or manually by the operator and the associated measurements and/or calculation operations are defined, but also the necessary settings for the measurement or . the measurement must be carried out yourself. Dimensioning can also include necessary links between geometric properties.
  • the dimensioning process is carried out with the help of display elements in the software assigned to the PMI data, such as so-called “PMI flags” (windows in a 2D or 3D representation of the target data such as the CAD of the workpiece, which are assigned to the individual dimensions ) or elements in a tree structure, as is known from measuring programs for coordinate measuring machines.
  • PMI flags windows in a 2D or 3D representation of the target data such as the CAD of the workpiece, which are assigned to the individual dimensions
  • elements in a tree structure as is known from measuring programs for coordinate measuring machines.
  • the generated and/or processed PMI data is assigned to the geometric properties of the workpiece to be measured.
  • Inviting PMI data target geometries and/or target elements such as CAD model elements
  • a data source such as a step file, JT file or QIF file
  • PMI flags or tree structure
  • PMI data source assigned to the workpiece, such as a step file, JT file or QIF file, especially in a semantically machine-readable form
  • Measuring and/or calculating actual data for the target geometries and/or target elements such as CAD model elements, in particular o measurement of target point clouds and/or o calculation of calculation elements and/or o generation of manual elements.
  • the invention is also characterized in that the PMI data contains at least one of the following information and/or the software is designed to supplement this:
  • PMI flags such as target values, tolerance values, measured values, references, for example in relation to the form of representation such as display color and/or orientation and/or position, dimension arrow type and thickness,
  • Assignment of the measuring specification or measuring parameters for the sensor and/or sensor type or measuring principle to be used to record the measuring points on the workpiece such as sensor settings (setting parameters) such as light, integration time for optical sensors or, for example, stylus properties such as stylus diameter, stylus length, stylus stiffness and /or target deflection for tactile sensors, - Evaluation rule for linking the measuring points recorded on the workpiece for the evaluation of the respective geometric properties of the workpiece, preferably setting the filtering,
  • the invention is characterized in that measurement sequence data for measurement programs are generated based on the dimensions, preferably measurement programs for coordinate measuring machines and/or computer tomographs, particularly preferably using several sensors, in particular sensors with different measuring principles, preferably several sensors which are within a multi-sensor coordinate measuring machine or a computer tomograph designed as a multi-sensor coordinate measuring machine.
  • the invention is also characterized in that measuring elements and/or target elements that are assigned to missing or geometric properties are supplemented or corrected semi-automatically or fully automatically using the software, in particular
  • - missing measuring elements and/or target elements are supplemented which are required for the determination of the geometric properties, in particular linked geometric properties, for example symmetry planes, and/or missing measuring elements and/or target elements are supplemented which are required for the determination of geometric properties, especially linked geometric properties, are required and when exporting the PMI data from other software suitable for creating PMI data and/or were lost during import into the software, and/or incorrectly assigned measurement elements and/or target elements to geometric properties are corrected by removing the incorrect elements from the PMI data and suitable elements are inserted, for example incorrect references are corrected and/or non-measurable measurement elements are replaced by measurable ones.
  • the software is executed on a data processing device such as a control PC, which is designed for connection to a coordinate measuring machine, preferably a multisensor coordinate measuring machine, or a computer tomograph or a computer tomograph designed as a coordinate measuring machine or a multisensor coordinate measuring machine.
  • a coordinate measuring machine preferably a multisensor coordinate measuring machine, or a computer tomograph or a computer tomograph designed as a coordinate measuring machine or a multisensor coordinate measuring machine.
  • the invention is also characterized in that the measurement program created for measuring geometric properties of the workpiece with the coordinate measuring machine, preferably multisensor coordinate measuring machine, or the computer tomograph or the computer tomograph designed as a coordinate measuring machine or multisensor coordinate measuring machine is executed by the software.
  • the invention is characterized in that PMI data, preferably CAD data, are generated by measuring geometric properties of the workpiece with a measuring program generated by the software, the measurement preferably being carried out with a coordinate measuring machine or a computer tomograph.
  • PMI data preferably CAD data
  • PMI data is generated by the operator manually entering the PMI data on the geometric properties of the workpiece into the software.
  • the invention also provides a device for carrying out the method, which is characterized in that a data processing device such as a control PC is designed to execute the software, the data processing device also being designed to create, and preferably execute, one of at least one Part of the PMI data generated measurement program for a geometric measurement Properties of the workpiece designed coordinate measuring machine, computer tomograph or computer tomograph designed as a coordinate measuring machine.
  • a data processing device such as a control PC is designed to execute the software
  • the data processing device also being designed to create, and preferably execute, one of at least one Part of the PMI data generated measurement program for a geometric measurement Properties of the workpiece designed coordinate measuring machine, computer tomograph or computer tomograph designed as a coordinate measuring machine.
  • the invention is characterized in that the data processing device such as a control PC is connected to a coordinate measuring machine, preferably a multisensor coordinate measuring machine, or a computer tomograph or a computer tomograph designed as a coordinate measuring machine or multisensor coordinate measuring machine, preferably connected to its control.
  • a coordinate measuring machine preferably a multisensor coordinate measuring machine, or a computer tomograph or a computer tomograph designed as a coordinate measuring machine or multisensor coordinate measuring machine, preferably connected to its control.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Geometry (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

L'invention concerne un appareil et un procédé de génération et/ou de traitement de données relatives à une pièce, qui est exécuté automatiquement par un logiciel et/ou est exécuté dans un logiciel au moins partiellement manuellement par un opérateur, le logiciel étant conçu pour créer un programme de mesure généré à partir d'au moins certaines des données pour un dispositif de mesure de coordonnées ou un tomographe informatique conçu pour mesurer les propriétés géométriques de la pièce.
PCT/EP2023/067613 2022-06-30 2023-06-28 Procédé de fonctionnement d'un dispositif de mesure de coordonnées et appareil pour la mise en oeuvre du procédé WO2024003120A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEDE102022116298.2 2022-06-30
DE102022116298 2022-06-30
DE102023106625 2023-03-16
DEDE102023106625.0 2023-03-16

Publications (1)

Publication Number Publication Date
WO2024003120A1 true WO2024003120A1 (fr) 2024-01-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/067613 WO2024003120A1 (fr) 2022-06-30 2023-06-28 Procédé de fonctionnement d'un dispositif de mesure de coordonnées et appareil pour la mise en oeuvre du procédé

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Country Link
WO (1) WO2024003120A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3353491B1 (fr) * 2015-09-24 2020-06-24 Mitutoyo Corporation Système et méthode de programmation d'opérations d'inspection des caractéristiques d'une pièce d'usinage pour un appareil de mesure de coordonnées
US20210348907A1 (en) * 2020-04-21 2021-11-11 Carl Zeiss Industrielle Messtechnik Gmbh Generation of Measurement Strategy for Measuring a Measurement Object
US20220148211A1 (en) * 2019-02-12 2022-05-12 Volume Graphics Gmbh Computer-implemented method for determining surfaces in measurement data

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3353491B1 (fr) * 2015-09-24 2020-06-24 Mitutoyo Corporation Système et méthode de programmation d'opérations d'inspection des caractéristiques d'une pièce d'usinage pour un appareil de mesure de coordonnées
US20220148211A1 (en) * 2019-02-12 2022-05-12 Volume Graphics Gmbh Computer-implemented method for determining surfaces in measurement data
US20210348907A1 (en) * 2020-04-21 2021-11-11 Carl Zeiss Industrielle Messtechnik Gmbh Generation of Measurement Strategy for Measuring a Measurement Object

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