WO2022012809A1 - Dispositif de mesure pour mesurer des profilés de brins longs - Google Patents

Dispositif de mesure pour mesurer des profilés de brins longs Download PDF

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Publication number
WO2022012809A1
WO2022012809A1 PCT/EP2021/064422 EP2021064422W WO2022012809A1 WO 2022012809 A1 WO2022012809 A1 WO 2022012809A1 EP 2021064422 W EP2021064422 W EP 2021064422W WO 2022012809 A1 WO2022012809 A1 WO 2022012809A1
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WO
WIPO (PCT)
Prior art keywords
sensor unit
unit
longitudinal axis
carriage
rail
Prior art date
Application number
PCT/EP2021/064422
Other languages
German (de)
English (en)
Inventor
Albert Sedlmaier
Original Assignee
Data M Sheet Metal Solutions 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 Data M Sheet Metal Solutions Gmbh filed Critical Data M Sheet Metal Solutions Gmbh
Publication of WO2022012809A1 publication Critical patent/WO2022012809A1/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
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/245—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
    • 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
    • G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • 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
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • 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
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • 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
    • G01B21/045—Correction of measurements

Definitions

  • the present invention relates to a measuring device for a geometric measurement of long extruded profiles.
  • extruded profiles which can for example be rolled or roll-formed extruded profiles, with which a surface of the extruded profile is measured in a cross-sectional area on a respective length of the extruded profile.
  • DE 102008036275 (B4) or WO2010015458 (A3) discloses a measuring device and a corresponding method in which a line of light is projected onto a part of the cross-sectional area which is recorded by at least two image recording elements, each of which has a different focal length. A resolution of the measurement or a measurement range is increased by the two image recording elements, which each have a different focal length.
  • the length of the extruded profile can be conveyed through the measuring device in order to determine the respective cross-sectional area in sections along the length. In this way, a surface of the extruded profile can be measured along the length of the extruded profile, perimeter by perimeter, which is adjacent in each case.
  • the extruded profile must be displaced by the measuring device or the measuring device must be displaced along the extruded profile very precisely in relation to an ideal line of the extruded profile in order to avoid measuring errors due to a deviation of the measuring device from the ideal line to obtain.
  • the measuring device is not specifically designed to measure the deflection or distortion of the extruded profile transversely to the longitudinal axis.
  • Extruded profiles can generally have a length of up to 6 meters or longer.
  • the term “distortion” can be understood to mean both a deflection transverse to the longitudinal axis and a twisting or torsion of the extruded profile about the longitudinal axis.
  • DE 102011000304 (B4) and WO2012101166 (A1) discloses a measuring device and a corresponding method in which at least two laser light section sensors are arranged on a length of the extruded profile around its longitudinal axis, which measure the respective cross-sectional area in a coordinated manner without one respective adjacent laser light section sensor calibrated to a first laser light section sensor need to vote.
  • This measuring device is also not designed per se to particularly precisely determine a deflection of the extruded profile transversely to the longitudinal axis.
  • Measuring the deflection or distortion of the extruded profile along its longitudinal axis is still problematic with the known devices and methods with regard to the accuracy of the measurement.
  • the object of the invention in order to eliminate the disadvantages of the prior art, is therefore to provide a measuring device for a geometric measurement of extruded profiles with which in particular a deflection or distortion of the extruded profile can be determined as precisely as possible along its length.
  • An extrusion comprising: a) a framework formed along a longitudinal axis to receive the extrusion therein along the longitudinal axis for surveying, the framework having a rail connected thereto which runs parallel to the longitudinal axis; b) a first sensor unit that is designed to measure the extruded profile geometrically at a length position along the longitudinal axis at which the sensor unit is located and to output corresponding geometric measurement data, the first sensor unit being connected to the rail via a carriage and moving along the rail is movable; c) a second sensor unit, which has a detector unit and an emitter unit functionally connected thereto, of which the detector unit or the emitter unit are connected to the first sensor unit and the respective other unit is connected to the framework, the second sensor unit is formed,
  • a microprocessor unit which is designed to calculate the geometric measurement data from the extruded profile and the position and location data from the first sensor unit to form the geometric surface data of the extruded profile in such a way that the geometric surface data are processed independently of a change in position and location of the first sensor unit in one predetermined area perpendicular to the longitudinal axis, or to automatically move and/or incline the first sensor unit (3) by means of the position and location data in such a way that a distortion of the rail is compensated for.
  • the present measuring device has the particular advantage that the first sensor unit can not only be easily moved in the framework, with its respective position being determined along the longitudinal axis, but also that a deviation of the first sensor unit from an ideal line or an ideal precise displacement on an ideal rail and are taken into account for determining a surface of the extruded profile along its longitudinal axis.
  • the first sensor unit can not only be easily moved in the framework, with its respective position being determined along the longitudinal axis, but also that a deviation of the first sensor unit from an ideal line or an ideal precise displacement on an ideal rail and are taken into account for determining a surface of the extruded profile along its longitudinal axis.
  • its own weight can lead to a not inconsiderable distortion or deflection of the frame scaffolding and the rail in relation to the ideal line or an ideal course.
  • the geometric measurement data of the extruded profile output by the first sensor unit are faulty in relation to the reference point and are faulty precisely by the distortion or the deflection of the rail.
  • the inventive determination of the position and location data of the first sensor unit in relation to the reference point of the framework enables the exact geometric surface data to be determined independently of the change in position and location of the first sensor unit.
  • the strand profile can also be measured exactly along its length.
  • the framework does not need to be particularly warp and torsion-resistant, and no particularly temperature-stable and expensive materials need to be used for the framework, the rail and the carriage, for example by using a material with a particularly low coefficient of thermal expansion.
  • the measuring device according to the invention simplifies the framework and the installation considerably, and this is associated with high cost savings.
  • the measuring device according to the invention can essentially be implemented in two ways.
  • the microprocessor unit can either be designed to calculate the geometric measurement data from the extruded profile and the position and location data from the first sensor unit to form the geometric surface data of the extruded profile (2) with one another in such a way that the geometric surface data is independent of a change in position and location of the first sensor unit (3). are in a predetermined range perpendicular to the longitudinal axis.
  • the microprocessor unit can be configured to automatically move and/or rotate and/or incline the first sensor unit transversely to the longitudinal axis based on the position and location data such that the distortion of the rail is compensated.
  • the first sensor unit is kept electronically controlled in the same orientation and height and at the same distance from the longitudinal axis during a movement along a straight line parallel to the longitudinal axis. In other words, the first sensor unit is moved along a straight line, with the rail still being able to warp or sag.
  • the first sensor unit can also be moved and/or rotated by the carriage along another predetermined path.
  • a change in inclination of the first sensor unit is preferably also detected and compensated for or prevented in an electronically controlled manner.
  • an actuator-based displacement and/or inclination and/or rotation of the first sensor unit means that the first sensor unit is connected to the carriage via at least one actuator, with the at least one actuator being controlled accordingly by the microprocessor unit.
  • the microprocessor unit can also be arranged inside the framework, but also outside.
  • the microprocessor unit can also be distributed and have several sub-microprocessor units. For example, part of the processes of the microprocessor unit in the first or second sensor unit can be carried out by a first sub- Microprocessor units are processed and another part of the processes of the microprocessor unit are processed in a second sub-microprocessor units, for example in an external PC. Such a division of the processes is considered to be state of the art.
  • the measuring device makes repetitive calibrations with regard to a temperature-related distortion of the framework superfluous, as a result of which time and operating errors can be avoided.
  • movable can also be understood as being displaceable and displaceable can also be understood as being movable, i.e. the first sensor unit on the carriage can be moved both manually and in an actuator-controlled manner.
  • the first sensor unit is preferably based on a laser light section measuring method that maps a surface profile of at least part of a cross section of the extruded profile in the geometric measurement data.
  • the first sensor unit can have one or more light section sensors.
  • the first sensor unit preferably determines the entire cross section or only part of it as the geometric measurement data at a predetermined length X in the framework.
  • a 3D image of the extruded profile is preferably determined by lining up the geometric measurement data along the longitudinal axis X.
  • the first sensor unit is preferably designed to measure a surface of the extruded profile.
  • the surface can be determined by the first sensor unit both in the form of a point or a line along the longitudinal axis and transversely or at a different angle to the longitudinal axis.
  • the first sensor unit is preferably based on a pattern or stripe projection onto the strand profile and includes, for example, stereo image processing or photogrammetry.
  • the first sensor unit is preferably based on a triangulation or light section method and/or another surface measuring method from the prior art. It is also conceivable that the first sensor unit has a tactile sensor.
  • the rail preferably has one or more parallel rail sections on which the carriage with the first sensor unit is moved.
  • the emitter unit is preferably a laser light unit, which emits at least a first laser beam in the direction of the detector unit, which is preferably a camera unit.
  • the laser light unit is preferably designed as a cross or a light point matrix or simply two parallel or non-parallel laser beams send out.
  • the emitter unit is preferably a reference body that emits light in the direction of the camera unit, it being possible for the light to be reflected and/or self-generated light.
  • the reference body can also have one or more point light sources, for example generated by LEDs. It goes without saying that the light from the emitter unit must lie at least partially in a detection range of the detector unit.
  • the camera unit can have, for example, one or more CCD sensors or other light-sensitive sensors such as photodiodes. It is also conceivable that the camera unit comprises only four light-sensitive sensors, with the carriage always being controlled in such a way that a laser light beam, for example, is always detected in the middle of it. It goes without saying that the camera unit can also have dust filters and/or light filters, which can also be inclined with respect to the laser light beam in order to avoid undesired reflections.
  • All position and position data of the first sensor unit 3 are preferably generated by the second sensor unit, but a determination of the longitudinal coordinates in the X-direction can also be determined by another linear sensor.
  • the reference body can preferably also be a taut wire, the deflection of which is known and along which the first sensor unit is moved.
  • the wire can be detected optically or electrically by the detector unit, for example.
  • the actuator is always automatically aligned in such a way that the sensor unit maintains the same distance from the laser beam or laser beams, so that the geometric data would not be corrected transverse to the longitudinal axis more necessary.
  • the wire with a predetermined deflection could also be used, with the automatic actuator alignment or position correction of the first sensor unit transverse to the longitudinal axis taking into account and compensating for the predetermined deflection, so that the sensor unit follows an imaginary laser beam instead of the wire with the deflection .
  • the reference body is preferably a reference body attached to the framework or to the extruded profile, which has a non-circular shape, so that a change in inclination between the emitter unit and the detector unit can also be determined.
  • the reference body preferably has an exactly predetermined shape, so that both a distance and the change in inclination between the emitter unit and the detector unit can be determined.
  • the carriage is preferably controlled automatically in the direction of the extruded profile, i.e. in a plane that is perpendicular to the longitudinal axis of the extruded profile, so that the first sensor unit on the carriage always runs on the ideal line parallel to the longitudinal axis of the extruded profile. This compensates for the deflection of the rail.
  • the emitter unit preferably emits at least two laser beams, which are received by the detector unit and evaluated by the detector unit or the microprocessor unit in such a way that both a distance from the longitudinal axis and a rotation of the first sensor unit about the longitudinal axis or a parallel axis is determined and output as at least part of the position and attitude data.
  • a distance in the vertical z-direction and/or in the horizontal y-direction and/or in the longitudinal direction x is preferably determined in each case.
  • a change in inclination of the first sensor unit to a horizontal plane in the x-y direction or to the vertical direction perpendicular thereto can also be determined, see Fig. 2.
  • the emitter unit preferably emits two laser beams that are not parallel to one another, wherein when the two laser beams are detected in the detector unit, a distance between the detected laser beams and from this a horizontal shift of the detector unit to the emitter unit can be determined.
  • the two laser beams can therefore be used to determine both a deflection in the vertical and horizontal direction and a change in inclination to the vertical axis, see Fig. 2 and Fig. 3.
  • the first laser beam and the second laser beam are preferably antiparallel, so that the position along the longitudinal axis x can also be determined with the second sensor unit.
  • the framework is preferably designed to keep the extruded profile fixed in the framework.
  • the carriage preferably has a first carriage and a second carriage which are coupled to one another, the first carriage being movable in parallel along the rail, and the second carriage being movable at an angle in relation to the first carriage and preferably at right angles to a longitudinal rail axis.
  • the first sensor unit can be moved in a planar area in a plane parallel to the longitudinal axis and/or rotated about a respective axis.
  • the carriage preferably has the first carriage, the second carriage and a third carriage which are coupled to one another, the first carriage being able to be moved in parallel along the rail, the second carriage being able to be moved at an angle in relation to the first carriage and preferably at right angles to the longitudinal axis of the rail, and the third carriage is movable in relation to the second carriage so that the first sensor unit in relation to a point on the longitudinal axis in all three directions in space and / or is rotatable about the respective axis.
  • the carriage is preferably configured by actuators in such a way that the first sensor unit can be displaced on it in relation to the rail, preferably in two or three spatial directions, and preferably also rotated or tilted about a first and/or a second and/or a third axis.
  • the first, second or third axis can be a horizontal axis X parallel to the longitudinal axis, as shown in FIG. 1 .
  • the first, second or third axis can be a vertical axis Z perpendicular to the longitudinal axis, as shown in FIG. 1 .
  • the carriage preferably has one or more actuators which are controlled by the microprocessor unit.
  • the first sensor unit is preferably moved and/or rotated by the carriage in relation to the longitudinal axis in such a way that the first sensor unit thereby generates geometric measurement data that is as precise and high-resolution as possible.
  • a method for determining the geometric surface data of the extruded profile in the frame structure using the first sensor unit that can be moved in the frame structure comprises the following steps: a) positioning the extruded profile along the longitudinal axis in the frame structure along which the geometric surface data are to be determined; b) Moving the first sensor unit along the longitudinal axis and thereby generating geometric measurement data from the strand profile; c) When moving the first sensor unit along the longitudinal axis: determining the position and attitude data of the first sensor unit in relation to the reference point of the framework by the second sensor unit; d) Automatic calculation of the geometric measurement data from the extruded profile and the position and location data of the first sensor unit in relation to the reference point, to generate the geometric surface data of the extruded profile, so that the geometric surface data from the position and location change of the first sensor unit are vertical in a predetermined area to the longitudinal axis are independent, or depending on the position and location data electronically controlled actuator displacement and / or inclination
  • the automatic calculation for correcting the geometric measurement data can be carried out, for example, in such a way that deviations in the respective coordinate directions determined by the second sensor unit are in turn subtracted from the geometric measurement data. For example, if the rail and thus the first sensor unit are lowered by the first sensor unit, an additional, erroneous distance of the geometric measurement data upwards to the extruded profile is measured, with this lowering then being subtracted from the measured distance again during automatic calculation.
  • the first sensor unit can be moved along the longitudinal axis in such a way that it is automatically moved transversely to the longitudinal axis by an actuator in such a way that unevenness or a distortion of the rail 1a is compensated for.
  • the rail 1a is lowered by an amount at a position, the first sensor unit 3 at this position is raised by this amount by means of an actuator.
  • the determination of the position and location data of the first sensor unit, as mentioned above, in relation to the reference point is preferably carried out by the second sensor unit of a system made up of the detector unit and the emitter unit, with either the detector unit or the emitter unit connected to the first sensor unit and the respective other unit to the framework in order to determine the position and location data of the first sensor unit in relation to the reference point.
  • the reference point can be predetermined both, for example as the reference body, the emitter or detector unit on the framework, and can also be located outside the framework.
  • the reference point can also be a calculated point in space, to which the detector and emitter unit relates with an offset.
  • the measuring device can also have a third sensor unit, which is preferably constructed identically or similarly to the second sensor unit and which is arranged, for example, in the direction of the longitudinal axis of the extruded profile, parallel and next to the second sensor unit, so that the emitter unit of the first sensor unit are mounted side by side with a second detector unit of the third sensor unit and the detector unit of the first sensor unit are mounted side by side with a second emitter unit of the third sensor unit.
  • a third sensor unit which is preferably constructed identically or similarly to the second sensor unit and which is arranged, for example, in the direction of the longitudinal axis of the extruded profile, parallel and next to the second sensor unit, so that the emitter unit of the first sensor unit are mounted side by side with a second detector unit of the third sensor unit and the detector unit of the first sensor unit are mounted side by side with a second emitter unit of the third sensor unit.
  • a third sensor unit which is preferably constructed identically or similarly to the second sensor unit and which is arranged, for example
  • Fig. 1 is a perspective sketch of a preferred embodiment of a
  • Measuring device for a geometric measurement of an extruded profile which comprises a framework, a carriage on a rail and a measuring head as a first sensor unit, with a detector unit being connected to the first sensor unit and an emitter unit being connected to the framework and the detector unit being connected to the emitter unit optically connected; in addition, the extruded profile is arranged in the framework and a microprocessor unit next to the framework;
  • FIG. 2 shows a sketched detection area of the detector unit, which is preferably a camera unit, in which a vertical direction and a vertical axis of the first sensor unit are shown, which are at an angle to one another;
  • Fig. 3 is a sketched arrangement of the preferred emitter unit, the two
  • FIG. 4 shows a perspective sketch of another preferred embodiment of the measuring device for geometrically measuring the extruded profile.
  • the extruded profile 2 should preferably be along its longitudinal axis and for deviations from the longitudinal axis be measured.
  • the extruded profile 2 is preferably held in a framework 1 of the measuring device, with a measuring head having a first sensor unit 3 being moved along the extruded profile 2 and the first sensor unit 3 supplying geometric measurement data from a surface of the extruded profile.
  • the extruded profile 2 could also be moved through the measuring head, although much larger masses would usually have to be moved and stored.
  • the movement of the measuring head with the first sensor unit 3 in relation to the extruded profile 2 requires very precise guidance in the frame structure 1.
  • the microprocessor unit 6 offsets the geometric measurement data from the extruded profile 2 and the position and location data from the first sensor unit 3 to form the geometric surface data of the extruded profile 2 in such a way that the geometric surface data is independent of a change in position and location of the first sensor unit 3 in a predetermined area are perpendicular to the longitudinal axis, correct geometrical surface data of the extruded profile 2 are generated despite the position and location change of the first sensor unit.
  • the microprocessor unit 6 preferably alternatively or additionally moves the first sensor unit 3 automatically, i.e. in a controlled manner, by actuators transversely to the longitudinal axis on the basis of the position and location data so that the distortion of the rail 1a is compensated for
  • the first sensor unit (3) preferably remains on one Ideal position and delivers correspondingly correct geometric measurement data of the extruded profile 2.
  • the measuring device could generally be designed in such a way that a first subsystem always aligns the first sensor unit 3 in such a way that the first sensor unit 3 is moved parallel to the longitudinal axis on an ideal path, with a second subsystem connects a travel position along the longitudinal axis with the geometric measurement data of the first sensor unit 3 in order to determine the geometric surface data of the extruded profile therefrom.
  • the detector unit 4 is coupled to the first sensor unit 3 and the emitter unit 5 is coupled to the framework 1, with a coupling of the emitter unit 5 to the first sensor unit 3 and a coupling of the detector -Unit 4 with the framework 1 is also conceivable, see Fig. 4.
  • the carriage 7 comprises a first carriage 7a, which can be moved on the rail 1a, and a second carriage 7b, which can be moved opposite the first carriage 7a and which carries the first sensor unit 3.
  • the first sensor unit 3 can be moved in two Cartesian coordinate axes X.
  • the carriage 7 also includes a third carriage, which is positioned vertically in a third Cartesian coordinate axis in relation to the second carriage can be moved in order to also be able to adjust the height of the first sensor unit 3 in a vertical direction Z.
  • the second and third carriages in particular do not necessarily have to be designed like a carriage, but what is meant by this is an adjustment unit which connects the first sensor unit 3 to the first carriage 7a in such a way that the first sensor unit 3 can be moved in two further directions in relation to the longitudinal axis of the extruded profile 2 can be moved or adjusted.
  • the first sensor unit 3 can generally always be moved towards the extruded profile 2 in such a way that the first sensor unit 3 always works in a measuring range with the best possible or predetermined minimum resolution and/or the best possible or predetermined minimum accuracy.
  • FIG. 2 shows a measuring range of the detector unit 4, whose vertical axis 5d, which preferably coincides with a vertical axis of the first sensor unit, is inclined with respect to the vertical direction Z.
  • Such an inclination can come about, for example, when one of two parallel rails 1a is slightly higher or the other bends slightly more than the first rail 1a.
  • Two impinging laser beams of the first laser beam 5a and the second laser beam 5b are shown as points in the measuring range of the detector unit 4 .
  • Fig. 3 it is to be clearly shown that when the first laser beam 5a is emitted at an angle to the second laser beam 5b, a second distance between the detector unit 4 can be calculated by the emitter unit 5.
  • FIG. 4 shows a slightly different preferred embodiment of the measuring device, also in a slightly different perspective.
  • top and bottom are understood to mean relative locations in the vertical direction, as shown in the figures.
  • the term “based on” means “depending on”.
  • the term “deflection” is also understood to mean a mechanical “distortion” and vice versa.
  • the "geometric surface data” is understood to mean the data that a geometric surface of the extruded profile Depending on the resolution, roughness values can also be included.
  • the first sensor unit 3 is preferably automatically displaced and/or tilted relative to the carriage 1a by means of the position and position data, with the displacement and/or tilt being controlled by at least one actuator such is set so that a delay in the rail is compensated for or is compensated; ie the position and attitude data remain the same as much as possible at a position along the longitudinal axis, notwithstanding any distortion of the rail 1a being compensated for.
  • rotating can also be understood to mean tilting about a respective rotation or tilting axis, and vice versa.
  • first the terms “first,” “second,” etc. may be used herein to denote various elements, components, regions, and/or sections, those elements, components, regions, and/or sections are not limited by those terms. The terms are only used to distinguish one element of one component, area or section from another element of another component, area or section. Therefore, a first element, component, region, or section discussed below may be referred to as a second element, component, region, or section without departing from the teachings of the present invention.
  • Embodiments of the invention are described herein with reference to cross-sectional views that are schematic representations of embodiments of the invention. Therefore, the actual thickness of the components may differ, and deviations from the shapes shown, for example due to manufacturing processes and/or tolerances, are to be expected.
  • Embodiments of the invention are not intended to be limited to the specific shapes of portions illustrated herein, but are intended to include variations in shapes resulting, for example, from the manner of manufacture.
  • first device part comprises a second device part
  • first device part comprises the second device part
  • second device part does not necessarily enclose it in terms of arrangement, unless it is, for example, a description of a positional and formal arrangement; the same applies to a method that can include one or more method steps.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

La présente invention concerne un dispositif de mesure destiné à mesurer géométriquement des profilés de brins (2), comprenant : une ossature (1) pourvue d'un rail (1a), ladite ossature étant formée le long d'un axe longitudinal de manière à recevoir le profilé de brin (2) dans celle-ci ; une première unité de capteur (3) qui peut être déplacée le long du rail (1a) par le biais d'un chariot (7) afin de mesurer géométriquement le profilé de brin (2) tranche par tranche le long de l'axe longitudinal et générer ainsi des données de mesure géométriques ; une deuxième unité de capteur qui détermine les données de position et d'emplacement respectives de la première unité de capteur (3) dans l'ossature (1) ; et une unité de microprocesseur (6) qui, à partir des données de mesure géométriques et des données de position et de localisation, détermine les données de surface géométriques du profilé de brin (2) de telle manière que celles-ci soient indépendantes d'une quelconque déformation du rail (1a) et/ou qui, sur la base des données de position et de localisation, déplace la première unité de capteur sur le chariot (1a) au moyen d'un actionneur de telle manière que les données de surface géométriques soient indépendantes d'une quelconque déformation du rail (1a).
PCT/EP2021/064422 2020-07-17 2021-05-28 Dispositif de mesure pour mesurer des profilés de brins longs WO2022012809A1 (fr)

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DE102020118964.8 2020-07-17
DE102020118964.8A DE102020118964A1 (de) 2020-07-17 2020-07-17 Messvorrichtung zur Vermessung langer Strangprofile

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115446666A (zh) * 2022-08-31 2022-12-09 武汉船用机械有限责任公司 一种细长型零件的加工方法

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