EP2422927A2 - Dispositif de mesure - Google Patents

Dispositif de mesure Download PDF

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Publication number
EP2422927A2
EP2422927A2 EP11005887A EP11005887A EP2422927A2 EP 2422927 A2 EP2422927 A2 EP 2422927A2 EP 11005887 A EP11005887 A EP 11005887A EP 11005887 A EP11005887 A EP 11005887A EP 2422927 A2 EP2422927 A2 EP 2422927A2
Authority
EP
European Patent Office
Prior art keywords
measuring
measuring head
measuring device
angle sensor
angular position
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP11005887A
Other languages
German (de)
English (en)
Other versions
EP2422927A3 (fr
Inventor
Raimund Volk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jenoptik Industrial Metrology Germany GmbH
Original Assignee
Hommel Etamic 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 Hommel Etamic GmbH filed Critical Hommel Etamic GmbH
Publication of EP2422927A2 publication Critical patent/EP2422927A2/fr
Publication of EP2422927A3 publication Critical patent/EP2422927A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
    • B24B49/04—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
    • B24B49/045—Specially adapted gauging instruments

Definitions

  • the invention relates to a measuring device referred to in the preamble of claim 1, in particular for in-process measurement of specimens during a machining operation on a processing machine, in particular a grinding machine.
  • crankshafts In the manufacture of crankshafts, it is necessary to grind the crankpins of the crankshaft to size on a grinding machine. In order to ensure that the grinding process is terminated as soon as a desired level is reached, it is necessary to continuously check the crank pin during the machining process, in particular with regard to its diameter and roundness, during an in-process measuring process.
  • EP-A-0859689 discloses a corresponding measuring device.
  • a measuring device of the type in question is known, which is used for in-process measurement of crankpins during a grinding operation on a grinding machine.
  • the known measuring device has a measuring head, which is movable relative to a main body of the device between a rest position and a measuring position in which the measuring head is in Meßcard with the test object.
  • the known measuring device of the measuring head via a linkage about a first pivot axis pivotally connected to a main body of the measuring device.
  • the known measuring device further comprises means for pivoting the measuring head in the measuring position or from the measuring position.
  • the measuring head is pivoted into the measuring position by the means provided for this purpose, in which the measuring head, for example by means of a measuring prism, comes into contact with the crank pin to be measured.
  • the crank pin performs an orbital rotation about the axis of rotation of the crankshaft.
  • the grinding wheel remains in contact with the crank pin and is mounted for this purpose to be movable radially to the axis of rotation of the crankshaft.
  • the measuring head retraces the movements of the crankpin.
  • the main body of the measuring device is connected to a main body of the grinding machine, so that the measuring device is moved synchronously with the grinding wheel of the grinding machine during the grinding process in the radial direction of the crankshaft.
  • EP 1 063 052 B1 a measuring device is known in which at a connection point at which the measuring head is connected via a linkage to the main body of the measuring device, a rotary encoder is provided.
  • the invention has for its object to provide a measuring device referred to in the preamble of claim 1, in which the risk of measurement inaccuracies is reduced.
  • the invention initially assumes that the measuring head usually during the measuring his
  • Angular position relative to the test specimen changes, wherein the change in the angular position is an oscillatory movement corresponding to the kinematics, for example, a linkage, via which the measuring head is connected to the main body of the measuring device.
  • measured values which are equidistantly measured in the circumferential direction are assigned to equidistant points of the test object by a probe of the measuring head during a rotation of the test object about its axis of rotation.
  • measurements measured equidistantly by the measuring probe do not correspond circumferentially to equidistant circumferential points of the test object, but are displaced circumferentially in accordance with the oscillating angular position of the measuring head.
  • the invention is based on the idea to avoid measurement errors that arise in connection with this correction.
  • the rotational position of a crankshaft is detected and the correction of the angular position determined by calculation based on the predetermined by the mechanical conditions kinematics of the measuring head. This correction is based on the assumption that every rotational position of the crankshaft uniquely associated with an angular position of the measuring head.
  • the invention is detached from the idea of performing the correction by calculation. Rather, it is based on the idea of detecting angular position changes of the measuring head relative to the test object by means of an angle sensor adapted thereto and assigned to the measuring head. Accordingly, the invention provides that the measuring head is associated with an angle sensor for detecting the angular position of the measuring head, in particular angular position changes of the measuring head relative to the DUT, during a measuring operation.
  • angular position changes of the measuring head are detected by sensors.
  • the sensory detected angular position changes can be incorporated with high accuracy in the correction of the measured values or their assignment to peripheral locations of the test specimen.
  • the measuring device has the particular advantage that changes in the kinematics of the measuring head, resulting for example from wear of the measuring head connected to the main body of the measuring device linkage or occur in a conversion of the measuring device to adapt to a crankshaft with other dimensions, the correction Do not affect the assignment of the measured values. In this way, the accuracy in the correction of the assignment of the measured values can be increased.
  • Another advantage of the invention is that it can be used without modification when a component of a grinding machine to which the measuring device is attached moves during the measuring process. Corresponding movements of the device carrying the measuring device and thus the measuring device can be scheduled and desired. However, the movements may also be random and undesirable. Regardless of which cause corresponding movements, they do not affect the measurement accuracy of the measuring device according to the invention, because angular position changes due to the use of a separate and the measuring head associated sensor are detected regardless of their cause. In this way, the flexibility of the measuring device according to the invention is increased with respect to the use in cooperation with a processing machine.
  • the evaluation of the measured values recorded by a measuring probe of the measuring head takes place in that first the angular position change of the measuring head relative to the test object is compensated or corrected during the measuring process. Subsequently, the compensated or corrected measured values can be further processed for the reconstruction of, for example, the correction of the test object.
  • the angle sensor which is assigned to the measuring head according to the invention may be a machine-sensor-free operating angle sensor.
  • a machine-reference-free operating angle sensor an angle sensor understood that detects the angular position or angular position changes of the measuring head independently of a reference, which is defined by the measuring device or the machine tool.
  • those sensors whose operating principle is based on interaction with a magnetic field or the gravitational field of the earth are regarded as machine-angle-free operating angle sensors.
  • a sensor is considered as he from the prior art is known and sensed with the rotations of the specimen relative to the grinding machine, to calculate therefrom and a known kinematics of the measuring head during the measuring process starting angular position changes of the measuring head.
  • the measuring head is assigned a single angle sensor. If required or desired according to the respective requirements, at least two angle sensors can also be assigned to the measuring head.
  • the sensor principle of the inventively provided angle sensor can be selected according to the respective requirements and conditions within wide limits, as long as it is ensured that the angular position or angular position changes of the measuring head can be determined relative to the DUT during the measuring process with an accuracy corresponding to the application.
  • angle sensor is a tilt sensor.
  • Corresponding inclination sensors as a result represent an angle measuring device with respect to the earth's surface and measure the deviation from the horizontal or vertical. Reference here is the gravitational field of the earth, so that a corresponding sensor works machine reference free.
  • the angle sensor is an acceleration sensor.
  • An acceleration sensor measures the acceleration, for example, by determining the force of inertia acting on a test mass.
  • the static or dynamic acceleration can be used for this purpose.
  • corresponding acceleration sensors which are also known as accelerometers, B-knife and G-sensor are called, as relatively small, versatile and inexpensive standard components are available.
  • other inertial sensors may optionally be used instead of acceleration sensors.
  • the angle sensor has a fiber gyro, which is also referred to as a fiber optic gyroscope or IFOG (Interferometer Fiber-Optic Gyroscope).
  • a fiber gyro is also referred to as a fiber optic gyroscope or IFOG (Interferometer Fiber-Optic Gyroscope).
  • the working principle of a fiber gyro is the interference of two light beams circulating in opposite directions in a wound glass fiber.
  • a fiber gyroscope is based on the principle of the Sagnac interferometer.
  • Corresponding fiber gyros are also available as relatively inexpensive components. Since they do not operate completely drift-free during operation, a calibration is required to ensure that the measurement results recorded during a measurement process are not corrupted by drift effects.
  • a laser gyroscope can also be used whose function is also based on the Sagnac effect.
  • the mode of operation of a fiber gyro or laser gyro in detail is generally known to the person skilled in the art and will therefore not be explained in more detail here.
  • a modified with respect to the operating principle of the sensor further embodiment provides that the angle sensor is a magnetic field sensor.
  • the operating principle of such a magnetic field sensor may be, for example, that the position of a permanent magnet is detected, which moves in a magnetic field generated by a coil.
  • the construction of corresponding magnetic field sensors is generally known to the person skilled in the art and will therefore not be explained in any more detail here.
  • an optical sensor arrangement can be used with which the angular position or angular position changes of the measuring head are optically detected.
  • the arrangement of the angle sensor or the angle sensors can be selected according to the respective requirements within wide limits.
  • An advantageous embodiment provides so far that the angle sensor is arranged on the measuring device.
  • the angle sensor is arranged on the measuring head or a rigid or almost rigidly connected to the measuring head part of a linkage, via which the measuring head is connected to the main body of the measuring device.
  • the angle sensor is directly connected to the measuring head or a rigidly connected part of the linkage.
  • the angle sensor is connected to an evaluation device which determines the angular position or angular position changes of the measuring head 12 relative to the DUT as a function of at least one output signal of the angle sensor.
  • a sensor is connected, which determines the respective rotational position of a rotating during the measurement process around a rotation axis specimen. If the test object is, for example, a crankshaft which rotates about a rotation axis during a grinding process, then the respectively instantaneous rotational position of the crankshaft can be sensed by means of a corresponding rotational position sensor. A corresponding signal can then be transmitted to the evaluation device which, in dependence on these output signals and the output signals of the angle sensor, produces an unambiguous assignment of measured values, which are recorded by means of a probe of the measuring head, to corresponding peripheral locations of the crankshaft.
  • Fig. 1 shows an embodiment of a measuring device 2 according to the invention, which is used for in-process measurement of specimens during a machining operation on a grinding machine 4.
  • the grinding machine 4 which is only partially shown for reasons of simplicity, has a rotatable about a machine-fixed axis of rotation 6 grinding wheel 8, which serves for processing a test specimen, which is formed in this embodiment by a crank pin 10 of a crankshaft.
  • the measuring device 2 has a measuring head 12, which is connected via a linkage 14 about a first pivot axis 16 pivotally connected to a base body 18 of the measuring device 2.
  • the measuring device 2 further comprises means for pivoting the measuring head 12 in and out of the measuring position or from the measuring position, which will be explained in more detail below.
  • the linkage 18 has a first linkage element 20 and a second linkage element 22, which are arranged pivotably about the first pivot axis 16.
  • a third linkage element 26 is pivotably connected about a second pivot axis 24, with its fourth end remote from a third pivot axis 28 pivotally connected to a fourth linkage element remote from the third pivot axis 24 Swivel axis 28 is pivotally connected to the first linkage member 20 about a fourth pivot axis.
  • first linkage member 20 and the third linkage member 26 are arranged non-parallel to each other, wherein the distance between the first pivot axis 16 and the second pivot axis 24 is smaller than the distance between the third pivot axis 28 and the fourth pivot axis 32nd
  • the second linkage member 22 has a lever arm 34, such that the lever arm 34 together with the linkage member 22 forms a two-armed angle lever whose function will be explained in more detail below.
  • the measuring head 12 is arranged in this embodiment on a holding arm 35, which is connected to the fourth linkage member 30 which is extended beyond the fourth pivot axis 32 out.
  • the connection between the support arm 34 and the fourth linkage member 30 is rigid. How out Fig. 2A it can be seen, in the illustrated embodiment, a free end of the holding arm 34 holding the measuring head 12 angled towards the first pivot axis 16, wherein a part of the holding arm 34 connected to the fourth link element 40 forms an angle of greater than 90 ° with the fourth link element 30.
  • the measuring head 12 a linearly deflectable probe 36, which in Fig. 2a is indicated by a dashed line.
  • the measuring head 12 also has a measuring prism 38 in the illustrated embodiment.
  • the manner in which roundness and / or dimensional measurements are carried out on a test specimen, in particular a crank pin of a crankshaft or another cylindrical component, by means of an arrangement of a linearly deflectable probe 36 and a measuring prism 38 is well known to the person skilled in the art and therefore becomes not explained here.
  • the measuring device 2 further comprises means for pivoting in and out of the measuring head 12, which engage the linkage 14 and based on Fig. 1 be explained in more detail.
  • the Einschwenkvoretti 40 spring means which in this embodiment, designed as a compression spring spring 44, the measuring head 12 via the linkage 14 in a in Fig. 1 symbolized by an arrow 46 Einschwenkraum.
  • the spring 44 is formed in this embodiment as a compression spring and is supported at its one end on the base body 18 of the measuring device 2 and at its other end on the lever arm 34, so that the spring 44, the lever arm 34 in Fig. 1 counterclockwise and so that the measuring head 12 is acted upon by means of the linkage 14 in the pivoting 46 and seeks to move.
  • the Ausschwenkvoretti 42 has in this embodiment, a hydraulic cylinder 48, the piston is connected at its free end to the base body 18 of the measuring device 2. With the piston rod 50 of the hydraulic cylinder 48 formed in this embodiment as a toggle lever assembly 42 is connected, the piston rod 50 facing away from the free end to the first pivot axis 16 is eccentrically connected to a one-armed lever 54 which is coaxially mounted to the pivot axis 16.
  • the lever 54 has at its free end in the plane extending into a pin 56 which acts on the first linkage element 20 loose, so that the lever 54 when moving in a Ausschwenkoplasty, which corresponds to a clockwise movement in the drawing, as a driver for the first linkage element 20 acts.
  • sensor means For sensing the respective position of the measuring head 12 sensor means are provided, which are in operative connection with control means for controlling the Einschwenkvortechnisch 40 and the Ausschwenkvortechnisch 42.
  • the evaluation of measured values which are recorded by means of the measuring probe 36 during a measuring process is carried out by means of an evaluation device of an evaluation computer.
  • the manner in which corresponding measured values are evaluated is generally known to the person skilled in the art and will therefore not be explained in more detail here.
  • the measuring head 12 is assigned an angle sensor 55 for detecting the angular position of the measuring head 12 and in particular angular position changes of the measuring head 12 relative to the test piece (crank pin 10).
  • the angle sensor 55 is arranged on the measuring device 2.
  • the angle sensor 55 is connected to the holding arm 35 and thus to a part of the linkage 18 which is rigidly or almost rigidly connected to the measuring head 12.
  • the angle sensor 55 is a machine-reference-free operating sensor, which is formed in this embodiment by an acceleration sensor, which determines the static acceleration of the measuring head 12 based on the gravitational acceleration.
  • the inclination sensor can be based for example on a commercially available so-called accelerometer, as it is available, for example, under the name ADXL 322 from the company Analog Devices (www.analog.com).
  • a corresponding electronic circuit determines biaxial in the X and Y direction, the static acceleration.
  • the respective angular position of the measuring head 12 and thus also angular position changes can be determined either by evaluating the output signal for only one measuring direction, for example via an arcsine relationship or via evaluation of both measuring directions via an arctangent relationship.
  • the angular position and thus angular position changes of the measuring head 12 are not determined by a defined by the measuring device 2 or the grinding reference affect changes in the kinematics, resulting for example from wear of components of the linkage 18, the measuring or Evaluation accuracy not. Likewise, it does not affect the evaluation when a component of the grinding machine 4, on which the Measuring device 2 according to the invention is arranged, moved during the grinding process.
  • Reference for the angle measurement is thus according to the invention in the illustrated embodiment exclusively the gravitational field of the earth. If the machine bed of the grinding machine 4 moves during the grinding process, for example because of an elastic bearing, then corresponding movements can be measured via a second angle sensor. During the evaluation, the angle measured by the angle sensor 55 can be corrected correspondingly by simple subtraction.
  • Fig. 2B shows the measuring head 12 in a position between the rest position and the measuring position.
  • Fig. 2C shows Angular position of the lever arm 34 runs on a stop 56, wherein upon emergence of the lever arm 34 on the stop 56, a control signal is transmitted to the control means, due to which the hydraulic cylinder 48 is stopped.
  • Fig. 2C shows the measuring head 12 in a search position in which it is not yet in contact with the crank pin 10.
  • Fig. 2D shows the measuring head 12 in its measuring position in which it is in contact with the crank pin 10.
  • Fig. 2E corresponds to Fig. 2C , wherein the measuring head 12 is shown in its search position with respect to a crank pin 10 'of larger diameter.
  • Fig. 3 shows the measuring device 2 in the search position of the measuring head 12, which also in Fig. 2C is shown.
  • Fig. 1 With Fig. 3 results in the lever 54 by means of the lever assembly 42 during extension of the piston rod 50 of the hydraulic cylinder 48 in Fig. 1 given away in the counterclockwise direction until the in Fig. 3 shown angular position of the lever 54 is reached. How out Fig.
  • the roller 56 is spaced in the circumferential direction of the first axis of rotation 16 to the first link member 20, so that the first linkage member 20 and thus the entire linkage 14 under the action of the weight of the measuring head 12 including the holding arm 34 and the the spring 44 can exert pressure force exerted freely.
  • the measuring position cf. Fig. 2D
  • the measuring head 12 abuts on the crank pin 10, wherein the measuring head traces orbital rotation of the crank pin 10 about the crankshaft during the grinding process.
  • the base body 18 of the measuring device 2 is fixedly connected to a holder of the grinding wheel 8, so that the measuring device. 2 translational movements of the grinding wheel 8 in the radial direction of the axis of rotation 6 follows.
  • the measuring probe 36 receives measured values, by means of which the roundness and / or the diameter of the crank pin can be assessed in the evaluation computer 36 downstream from the evaluation computer. For example, if a certain degree of diameter is reached, the grinding wheel 8 is disengaged from the crankpin 10.
  • the control device controls the hydraulic cylinder 48 such that its piston rod 50 in Fig. 3 moved to the left.
  • the lever 54 by means of the lever assembly 42 in Fig. 3 pivoted clockwise.
  • the roller 56 is spaced in the circumferential direction of the first pivot axis 16 to the first link member 20, the measuring head 12 initially remains in the measuring position. If the roller 56 in a further pivoting of the lever 54 in Fig.
  • the measuring head moves in the circumferential direction of the crank pin 10 with an angular stroke, which is approximately -7 ° and + 5 °, ie a total of 12 ° in the illustrated embodiment.
  • FIGS. 2A to 2E show a structurally slightly modified variant of the embodiment according to Fig. 1 and Fig. 3 However, with respect to the basic principle according to the invention with the embodiment according to Fig. 1 and Fig. 3 matches.
  • the orbital rotations of the crankpin 10 about the axis of rotation of the crankshaft are detected by means of a rotary slide sensor 57 which is associated with the axis of rotation of the crankshaft.
  • Fig. 4 the evaluation device is shown schematically and designated by the reference numeral 58.
  • the probe 36 is in Fig. 4 also shown schematically.
  • the angular position of the measuring head 12 changes relative to the crank pin 10, wherein the associated angular position changes are detected via the angular position sensor 53, the output signals of the evaluation device 58 are supplied.
  • the output signals of the rotary slide sensor 57 which is associated with the axis of rotation of the crankshaft, are likewise supplied to the evaluation device 58, as in FIG Fig. 4 shown.
  • the evaluation device 58 corrects the assignment of the time-equidistantly recorded measured values of the measuring probe 60 in such a way that these measured values are assigned to the circumferential points of the crank pin 10 in the correct position.
  • the accuracy of the correction is no longer dependent on the extent to which the predetermined by the linkage 18 kinematics of the measuring head 12 during the measurement corresponds to an assumed kinematics.
  • a deviation of the actual kinematics of the assumed kinematics, for example due to wear of components of the linkage 18, this correction and thus the measurement accuracy does not affect.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
EP11005887.2A 2010-08-23 2011-07-19 Dispositif de mesure Withdrawn EP2422927A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010035147.4A DE102010035147B4 (de) 2010-08-23 2010-08-23 Meßvorrichtung

Publications (2)

Publication Number Publication Date
EP2422927A2 true EP2422927A2 (fr) 2012-02-29
EP2422927A3 EP2422927A3 (fr) 2017-08-02

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EP11005887.2A Withdrawn EP2422927A3 (fr) 2010-08-23 2011-07-19 Dispositif de mesure

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US (1) US9393663B2 (fr)
EP (1) EP2422927A3 (fr)
DE (1) DE102010035147B4 (fr)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
ITBO20130498A1 (it) * 2013-09-16 2015-03-17 Marposs Spa Apparecchiatura per il controllo di dimensioni diametrali di perni
ITBO20130629A1 (it) * 2013-11-19 2015-05-20 Marposs Spa Apparecchiatura per il controllo di dimensioni diametrali di perni
WO2015036851A3 (fr) * 2013-09-16 2015-07-16 Marposs Societa' Per Azioni Appareil de vérification des dimensions diamétrales de tourillons

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DE102009032353A1 (de) * 2009-07-08 2011-09-08 Hommel-Etamic Gmbh Verfahren zur Ermittlung der Form eines Werkstücks
DE102010035147B4 (de) 2010-08-23 2016-07-28 Jenoptik Industrial Metrology Germany Gmbh Meßvorrichtung
US20130115034A1 (en) * 2011-11-08 2013-05-09 Caterpillar Inc. Pin position sensor mounting assembly
EP2617522B1 (fr) * 2012-01-23 2014-01-15 Supfina Grieshaber GmbH & Co. KG Dispositif de traitement précis d'une surface périphérique de pièce usinée agencée de manière excentrique par rapport à un axe de pièce usinée
DE102012018580B4 (de) * 2012-09-20 2015-06-11 Jenoptik Industrial Metrology Germany Gmbh Messvorrichtung und Messverfahren zur Inprozess-Messung an Prüflingen während eines Bearbeitungsvorganges an einer Bearbeitungsmaschine, insbesondere einer Schleifmaschine
DE102014113553B3 (de) * 2014-09-19 2015-09-17 Jenoptik Industrial Metrology Germany Gmbh Kurbellagerflanken-Messvorrichtung
DE102015115718B4 (de) * 2015-09-17 2018-10-11 Jenoptik Industrial Metrology Germany Gmbh Rundheits- und/oder Dimensions-Messvorrichtung
DE102016107135A1 (de) 2016-04-18 2017-10-19 Jenoptik Industrial Metrology Germany Gmbh Messanordnung
US10254099B1 (en) 2016-06-01 2019-04-09 Gagemaker, Lp In-process diameter measurement gage
DE102016122695A1 (de) 2016-07-20 2018-01-25 Jenoptik Industrial Metrology Germany Gmbh Oberflächenmessvorrichtung
DE102017106741B4 (de) 2017-03-29 2019-11-14 Jenoptik Industrial Metrology Germany Gmbh Oberflächenmessgerät
DE102018103420A1 (de) * 2018-02-15 2019-08-22 Jenoptik Industrial Metrology Germany Gmbh Messgerät zur Oberflächen- oder Konturmessung
DE102019105059A1 (de) 2018-12-19 2020-06-25 Jenoptik Industrial Metrology Germany Gmbh Verfahren zum Betreiben eines Oberflächenmessgeräts
DE102020108182A1 (de) 2019-05-07 2020-11-12 Jenoptik Industrial Metrology Germany Gmbh Oberflächenmessgerät
US12048983B2 (en) * 2021-10-27 2024-07-30 Fives Landis Corp. Grinding machine centering gauge

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ITBO20130498A1 (it) * 2013-09-16 2015-03-17 Marposs Spa Apparecchiatura per il controllo di dimensioni diametrali di perni
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ITBO20130629A1 (it) * 2013-11-19 2015-05-20 Marposs Spa Apparecchiatura per il controllo di dimensioni diametrali di perni

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US20120043961A1 (en) 2012-02-23
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EP2422927A3 (fr) 2017-08-02

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