WO2006114165A1 - Dispositif et procede de mesure optique d'objets a mesurer - Google Patents

Dispositif et procede de mesure optique d'objets a mesurer Download PDF

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Publication number
WO2006114165A1
WO2006114165A1 PCT/EP2006/002366 EP2006002366W WO2006114165A1 WO 2006114165 A1 WO2006114165 A1 WO 2006114165A1 EP 2006002366 W EP2006002366 W EP 2006002366W WO 2006114165 A1 WO2006114165 A1 WO 2006114165A1
Authority
WO
WIPO (PCT)
Prior art keywords
measuring
illumination
measurement
data
light
Prior art date
Application number
PCT/EP2006/002366
Other languages
German (de)
English (en)
Inventor
Dietmar Ernst
Wolfhard Bohm
Konrad Friedrich
Holger Hage
Original Assignee
Mahr Okm 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 Mahr Okm Gmbh filed Critical Mahr Okm Gmbh
Publication of WO2006114165A1 publication Critical patent/WO2006114165A1/fr

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Classifications

    • 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

Definitions

  • the invention relates to a measuring device and a measuring method, each for the optical measurement of measuring objects under suitable lighting.
  • a surface contour can be detected with a camera if the distance between the object and the camera is continuous. ierlich or in steps is changed and for each distance value is assigned to each sharp image areas of just current distance value.
  • a pattern can be projected onto the measurement object whose distortion caused by the shape of the measurement object then provides information about the shape of the measurement object.
  • the measurement object must be provided with unstructured, e.g. illuminated by diffused light.
  • the measurement object is illuminated with structured light, for example a line or grid pattern.
  • the illumination of the test object can have a significant impact on the quality of the image acquisition. Therefore, it has already been considered to light sources that serve to illuminate a measurement object to store movable in order to set the optimal lighting position for each measurement can. However, this requires a certain skill of the operator. In the worst case, a wrongly adjusted illumination can lead to incorrect measurements, or at least to measurement uncertainties.
  • the measuring device contains a lighting device, which is carried by a positioning device.
  • a control device moves the illumination device by corresponding actuation of the positioning device in accordance with predetermined data assigned to the measurement object.
  • the measuring direction can be used in particular, for example, to measure tools, such as milling tools, which are described by a record.
  • the data record may have been created in CAD, for example. From the geometry of the measurement object, ie, for example, the cutting tool, the desired illumination data can now be determined. In the preferred case, this is done automatically by a program or program part that extracts the illumination data from the CAD data set. Alternatively it can be provided that the data describing the illumination, which belong to the measurement object, are created manually in advance. It is also possible to provide that the machine-generated data be changed manually.
  • the data associated with the measurement object for controlling the illumination when carrying out the measurement process can be kept ready as a data set in the control device.
  • the control device for example a suitable computer with conventional storage medium, such as a hard disk or the like, can keep the data sets of several different measurement objects, for example in a database, on demand.
  • the data records can contain further data for carrying out a measurement procedure. In order to measure a measurement object, it is merely necessary to call up and activate the data set associated with the measurement object from the database in order to control the measurement procedure, including the illumination of the measurement object.
  • the data record for a measurement object can also be kept ready on a separate data carrier, such as a CD-ROM, floppy disk or the like, and used as a basis for the measurement procedure. For example, one after the other If several measuring objects of the same type, for example milling cutters or drills of the same design and size, are measured, these are also assigned the same data set. After activating the data set, for example by reading it into the computer or by calling it from a memory, the measuring objects in question can be measured one after the other without resetting the measuring device.
  • a separate data carrier such as a CD-ROM, floppy disk or the like
  • the data set can alternatively be provided via a remote data connection, for example in the context of a local network or via the Internet.
  • the measurement reliability can be increased.
  • the data relating to the illumination describe at least the spatial direction with which the illumination is aligned in relation to the measurement object. Furthermore, the data may be directed, for example, to the luminous intensity or other characteristics of the illumination.
  • the illumination device is preferably connected to the measuring head. Positioning of the measuring head thus always results in positioning of the illumination device.
  • the positioning device carrying the illumination device is preferably arranged between the measurement head and the illumination device, so that the illumination device can be aligned with the measurement object while the measurement head otherwise rests.
  • the illumination device has at least two light exit openings arranged substantially opposite each other. This makes it possible to illuminate the rake surface and the free surface of a measuring object indepen- dently of one another. ⁇
  • Each light exit opening is preferably associated with at least one light source, for example a light-emitting diode.
  • a white light LED can be used here.
  • the illumination device is preferably designed such that it emits light directed along an illumination axis, preferably with a small opening angle.
  • the luminance is preferably determined according to a Gaussian distribution.
  • the illumination device can have a plurality of light-emitting diodes or other light sources for each illumination direction (illumination axis). This makes it possible to achieve an enlargement of the illuminated field of view.
  • the positioning device allows a movement of the illumination device preferably at least about an axis of rotation, which coincides with the optical axis of the measuring head.
  • the illumination axis can always be aligned, if necessary, substantially at right angles to a cutting edge to be measured, lying transversely in the field of view of the camera.
  • the positioning device preferably has at least one pivot axis, which is directed transversely to the optical axis of the measuring head. This allows the lighting device if necessary be pivoted so • that as much reflected by the measured object light in the Measuring head falls.
  • at least one second Sch.wenkach.se is provided for moving the positioning, said second pivot axis is in turn preferably aligned parallel to the first pivot axis. This allows the lighting to be adjusted even more finely to the given conditions predetermined by the measured object.
  • the pivot axes as well as the rotation axis are preferably each assigned a remotely controllable drive, which is controlled by the control device according to the data associated with the measurement object in order to set up the illumination as desired.
  • the illumination device is preferably guided by the positioning device such that the light beams emanating from the illumination device and reflected by the surface of the measurement object are directed substantially parallel to the optical axis of the measuring head. This results in a high light output. You can work with relatively low-light lighting equipment.
  • a focusing method is preferably used as the measuring method, in which only those areas of a measuring object which are located in a measuring plane are sharply imaged and recorded by a camera.
  • the measuring plane is directed transversely to the optical axis of the lens of the measuring head.
  • each sharp-focused pixel is assigned to each of the current distance value between the measuring plane and lens.
  • the lighting device can work with continuous light. It is also possible to pulse the lighting if necessary. This can be part of the data used to control the lighting.
  • the data controlling the positioning device then carry corresponding information via an actuation of the positioning device during the measuring procedure. Such positioning can be done in stages or continuously. It is furthermore possible to repeat a measurement run in which the object surface is guided through the measurement plane one or more times with different illuminations, ie to carry out the measurement in several passes.
  • the data controlling such a measuring process in particular with regard to the lighting, can be pre-determined determined and held ready as a record for measuring a given measurement object.
  • the present invention makes it possible to carry out complicated workpieces and critical measurement processes reliably and without special knowledge of the operator.
  • FIG. 1 shows a measuring device according to the invention in a schematic representation
  • FIG. 2 shows the measuring head and a part of the test object in a schematic principle representation
  • FIG. 3 shows the measurement object according to FIG. 2 and its illumination in a schematic representation
  • FIG. 4 is a schematic representation of the measurement object and the illumination axes of its illumination device from the perspective of the measuring head;
  • FIG. 5 shows the illumination of a test object with a curved surface in a schematic principle illustration.
  • Figure 1 illustrates a measuring device 1 in the measurement of a cutting tool 2, which forms the measuring object 3 here.
  • the measuring device 1 has an optical measuring head 4 with a lens 5 and not further illustrated components for mounting, storage, guidance and targeted movement of the measuring head 4 of the objective 5 and the measuring object 3.
  • a lighting device 6, which serves to illuminate the region of interest of the measuring object 3, is held on the measuring head 4.
  • the lighting device 6 is supported by a positioning device 7 with the aid of which it is movable relative to the measuring head 4 and relative to the measuring object 3.
  • the direction of the object illumination can be set in a targeted manner.
  • Measuring head 4 supplied data is a control device 8, for example in the form of a computer 9 with the usual components and an input device 10 and a display device 11 is provided.
  • the input device 10 may be a keyboard and the display device 11 a screen.
  • the computer 9 is preferably a PC with processing means and mass storage.
  • the lighting device 6 includes at least one, but preferably two lights 12, 13, each having a Lichtaustrittso réelle 14, 15.
  • the light outlet openings 14, 15 are directed towards the region of interest of the measurement object 3 in the field of view of the objective 5.
  • the luminaires 12, 13 are, for example, LED luminaires, which in each case comprise one or possibly also a plurality of high-intensity light-emitting diodes, for example white-light LEDs or also colored LEDs.
  • the lights 12, 13 are arranged substantially opposite one another, ie they lie on two diametrically opposite positions with respect to an optical axis 16 fixed by the objective 5.
  • Both lamps 12, 13 emit their light toward the optical axis 16 and in each case generate a light spot which lies at the optical axis 16 , Illuminated by the lens 5 sharply imaged area of an imaginary measuring plane.
  • the lights 12, 13 preferably each give off a light beam with a small opening width and approximately Gaussian luminance distribution. In the simplest case, the light emitted directly by the LEDs is used without the aid of further optical elements. If necessary, however, additional lenses, mirrors or the like can be used to produce a nearly parallel light beam for illuminating the measuring object 3.
  • the measuring device 1 according to Figure 1 is illustrated again schematically.
  • the positioning device 7 is connected directly to the objective 5, wherein it also differs therefrom with a measuring head
  • the positioning device 7 comprises for each lamp 12, 13 each have an arm 17, 18 which carries the lamp 12, 13.
  • the arm 17 is subdivided into an upper part 17a connected to the objective 5 and into a lower part 17b connected to the lamp 12. Accordingly, the arm 18 is divided into the parts 18a, 18b.
  • the carrier 5a is mounted so that it can rotate around the optical axis 16, so that the optical axis 16 simultaneously marks an axis of rotation.
  • a not further illustrated engine is used by the control device 8 is controlled and belongs to the positioning device 7.
  • a not further illustrated, preferably electric drive controls a pivoting of the part 17 a about a pivot axis 19, which is directed transversely to the optical axis 16 and passes at a radial distance to this at her.
  • the part 18a is mounted pivotably on a pivot axis 20 lying opposite the axis 19 and preferably parallel to it.
  • a corresponding drive for example an electric servomotor, is connected to the control device 8 like the aforementioned motors for the carrier 5a and the part 17a.
  • the pivot axes 19, 20 form first pivot axes, which are arranged at radially equal distances from the optical axis 16.
  • the pivot axes 21, 22 are again actuators, e.g. electric servomotors, assigned, which are controlled by the control device 8.
  • the actuators of the rotation axis and the pivot axes 19 to 22 are preferably position-controlled or position-controlled drives, such as servomotor drives or stepping motor drives, via which the control device 8, the respective position of the lamp 12, 13 and the alignment of their illumination axis 23, 24 can set as desired.
  • the data may contain information about the desired measurement procedure. In any case, however, they contain information about the desired setting of the illumination device 6 for the measurement object 3.
  • the data contains information at least about the spatial orientation of the illumination axes 23, 24, ie the spatial positioning of the rotation axis and the pivot axes 19, 21 and 20, 22 ,
  • the data may be present as a data record in a database which is present in the computer 9, for example on its hard disk.
  • the corresponding data record can be made available to the computer 9 via a data medium, such as a floppy disk, a removable disk, a CD-ROM or a DVD or other suitable data carriers, and entered into the latter.
  • the computer 9 can be connected via a line 25 or another data connection to an external data memory or a computer network (LAN or Internet) or another data source. It then receives the dataset belonging to the measurement object 3 via the line 25. Automatically or via the input device 10, the corresponding data set can be activated in order to bring the illumination device 6 into the predetermined position before carrying out the pending measurement task.
  • This position has preferably already been defined during the design of the measurement object and thus forms part of a comprehensive data record describing the measurement object 3.
  • This data set may have been created, for example, during the creation of a data model of the measurement object 3, for example in the context of the CAD, prior to its production.
  • This dataset or at least parts of it accompany the measurement Project 3 then on its way to industrial application.
  • the cutting tool 2 then contains entries in a database or data sets held on a separate data carrier or available via computer network, which control the measuring machine when measuring the same or at least the illumination device 6.
  • the acquisition of such a data record for controlling the illumination device 6 can take place manually.
  • data acquisition is preferably carried out automatically, e.g. performed during the CAD design of the cutting tool 2. It is e.g. to assume in advance that the measuring task results in "optical measurement of the circumferential cutting edges of the cutting tool 2."
  • the cutting tool 2 is positioned in the field of view of the objective 5, as illustrated in FIG 16 approximately intersects the peripheral cutting edge 26 to be measured This is illustrated in Figure 2.
  • the peripheral cutting edge 26 is followed by a side on one side
  • Measuring plane M is the plane on which the optical axis 16 is perpendicular and in which a defined by the lens focus point F is located. To carry out the measurement the measuring object 3 and the measuring plane M are adjusted relative to each other. Regardless of the lights 12, 13 are aligned according to the inclination of the free surface 27 and the clamping surface 28 or the cutting edge phase 29. To determine the position of the luminaire 12 and / or 13, the solder L 1 and L 2 are respectively precipitated on the area of interest.
  • the lights 12, 13 are preferably arranged so that their illumination axes 23, 24, as illustrated in FIG. 4, are oriented substantially perpendicular to the peripheral cutting edge 26 (or at a corresponding other cutting edge) from the viewpoint of the objective 5.
  • the measuring device 1 described so far operates as follows: For measuring the cutting tool 2, this is, as indicated schematically in Figure 1, placed on a not further illustrated receptacle, so that its means or axis of rotation 30 is aligned transversely to the optical axis 16. Instead of the cutting edge 26 of the cutting edge, cutting edges of the cutting tool 2 should be measured, whereas the cutting tool 2 is placed so that its center or axis of rotation 30 coincides with the optical axis 16 or is oriented parallel thereto. In any case, the lens 5 looks at the cutting edge of interest approximately as illustrated in FIG. It covers the entire cutting edge or a part of it.
  • the data record relating to the cutting tool 2 is now called on the computer 9. This is obtained, for example, via a database system stored on the hard disk of the computer 9 and resident data there. The data may also be provided via a data link such as line 25 or a volume associated with the cutting tool 2 or tool type.
  • the computer 9 is provided with corresponding drives.
  • the computer 9 After calling the data set belonging to the cutting tool 2, the computer 9 supplies corresponding positioning commands to the positioning device 7, which moves the lights 12, 13 into positions specified by the data record and specific to the cutting tool 2 and the respective measuring task. These are, as indicated in FIGS. 3 and 4, oriented in such a way that light reflected by the cutting tool 2 is substantially removed. borrowed parallel to the optical axis 16 to the lens 5 runs.
  • a so-called focus-seeking method is used.
  • the measuring plane M when the cutting edge 26 is to be measured, for example, initially moved to the illustrated in Figure 3 lower position. In this only those areas of the cutting tool 2 are shown sharply, which are in the measurement plane M.
  • the camera connected to the objective 5 now assigns the Z-position (ie position along the optical axis 16) of the measuring plane M to the pixels shown in sharp focus.
  • the objective 5 and / or the cutting tool 2 are adjusted in relation to each other in such a way that the measuring plane M is moved ever closer to the cutting edge 26 and beyond it.
  • pictures are taken continuously while the respective sharp Z pixels are assigned the respective current Z position.
  • the surface of the cutting tool 2 reflects the light of the lamps 12, 13 substantially parallel to the optical axis 16 to the objective 5 ,
  • FIG. 5 illustrates an extended embodiment for measuring a measuring object 3, in particular for the. Case that it has a more curved surface 31.
  • Various positions of the measuring plane M can here be assigned to different positions of the lamps 12, 13, which are each distinguished by a letter index in FIG.

Abstract

L'invention concerne un dispositif de mesure pourvu d'un dispositif d'éclairage (6), dont au moins une lampe (12) peut être déplacée dans différentes positions au moyen d'un dispositif de positionnement (7). Ce dispositif de mesure (1) présente également un dispositif de commande (8) qui commande le dispositif de positionnement (7). Des données permettant de déterminer la position de la lampe (12) sont présentes dans le dispositif de commande (8) ou bien fournies à ce dernier. Ces données appartiennent à l'objet à mesurer et sont activées avant l'exécution d'une mesure. Le dispositif de commande (8) règle, pour chaque objet à mesurer (3), la meilleure position d'éclairage possible souhaitée. Pour cela, des données sont préparées au préalable, par exemple lors de la conception assistée par ordinateur d'outils d'enlèvement de copeaux qui constitueront plus tard l'objet à mesurer (3). Ensuite, les données des objets qui seront à mesurer sont établies et les données relatives à la commande du dispositif de mesure, en particulier au réglage du dispositif d'éclairage, sont préparées. De préférence, ces données sont générées automatiquement, par exemple, par un programme.
PCT/EP2006/002366 2005-04-22 2006-03-15 Dispositif et procede de mesure optique d'objets a mesurer WO2006114165A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005018729.3 2005-04-22
DE200510018729 DE102005018729A1 (de) 2005-04-22 2005-04-22 Vorrichtung und Verfahren zum optischen Vermessen von Messobjekten

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WO2006114165A1 true WO2006114165A1 (fr) 2006-11-02

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WO (1) WO2006114165A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008055595A1 (de) 2008-12-30 2010-07-01 Werth Messtechnik Gmbh Verfahren und Anordnung zum Messen eines Objekts

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT514553B1 (de) * 2013-09-26 2015-02-15 Polymer Competence Ct Leoben Gmbh Verfahren und Vorrichtung zur optischen Untersuchung einer Oberfläche eines Körpers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003390A1 (de) * 1990-02-05 1991-08-08 Emco Maier Gmbh Vorrichtung zum erfassen der kontur eines werkstueckes
US5580163A (en) * 1994-07-20 1996-12-03 August Technology Corporation Focusing light source with flexible mount for multiple light-emitting elements
DE19739250A1 (de) * 1996-09-13 1998-03-26 Fraunhofer Ges Forschung Optische Erfassung von Freiformflächen
US5856874A (en) * 1996-04-05 1999-01-05 Mitutoyo Corporation Optical gauge with adjustable light path bending mirror
US6044170A (en) * 1996-03-21 2000-03-28 Real-Time Geometry Corporation System and method for rapid shape digitizing and adaptive mesh generation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001515236A (ja) * 1997-09-04 2001-09-18 ダイナログ インコーポレイテッド ロボット検査システムを較正するための方法
US6490541B1 (en) * 1999-06-25 2002-12-03 Mitutoyo Corporation Method and apparatus for visual measurement
DE10105194A1 (de) * 2000-03-03 2001-09-13 Ubbo Ricklefs Prüf-, Mess-oder Fertigungsmaschine
DE10128334A1 (de) * 2001-02-09 2002-08-29 Frank Voessing Verfahren und Vorrichtung zur gleichzeitigen Beleuchtung von Objekten für die Interferometrische Speckle Shearografie mit verschiedenen Sensitivitätsvektroren aus unabhängig voneinander eingesetzten Strahlquellen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003390A1 (de) * 1990-02-05 1991-08-08 Emco Maier Gmbh Vorrichtung zum erfassen der kontur eines werkstueckes
US5580163A (en) * 1994-07-20 1996-12-03 August Technology Corporation Focusing light source with flexible mount for multiple light-emitting elements
US6044170A (en) * 1996-03-21 2000-03-28 Real-Time Geometry Corporation System and method for rapid shape digitizing and adaptive mesh generation
US5856874A (en) * 1996-04-05 1999-01-05 Mitutoyo Corporation Optical gauge with adjustable light path bending mirror
DE19739250A1 (de) * 1996-09-13 1998-03-26 Fraunhofer Ges Forschung Optische Erfassung von Freiformflächen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008055595A1 (de) 2008-12-30 2010-07-01 Werth Messtechnik Gmbh Verfahren und Anordnung zum Messen eines Objekts

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