• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    There is provided a three-dimensional non-contact control device of a mechanical gear piece (20) having a main axis of rotation, comprising: - teeth scanning means, comprising at least one pair of laser measurement modules (12A, 12B) and rotating drive means around the main axis of the workpiece relative to the laser measuring modules; means for reconstructing a virtual three-dimensional representation of the piece from data coming from said scanning means; dimensional control means from the three-dimensional representation; each pair of modules comprising a first module oriented towards a first face of a tooth (FA) and a second module oriented towards a second face (FB) of a tooth; the modules being oriented relative to the workpiece so that during a rotation of the workpiece, the scanning means scan the first and second faces of each tooth over their entire thickness and depth.
    公开号:FR3043193A1
    申请号:FR1560485
    申请日:2015-11-02
    公开日:2017-05-05
    发明作者:Neel Didier Le
    申请人:Mesure-Systems3d；
    IPC主号:
    专利说明:

    Three-dimensional non-contact control device of a mechanical part with teeth
    1. DOMAIN OF THE INVENTION
    The field of the invention is that of the dimensional measurement of mechanical parts with teeth. The invention more particularly relates to a three-dimensional non-contact control device of a mechanical part with teeth, such as a toothed wheel, a pinion gear or a toothed shaft for example.
    In the rest of the description, the term "mechanical toothed part" is used to cover all the parts that may be part of a gear or gear system, a gear transmission, rack or the like. Toothing means the toothed part of the mechanical part concerned.
    2. TECHNOLOGICAL BACKGROUND
    The mechanical parts with teeth that generally make up a gear system are widely used in the mechanical sectors to transmit movements, such as aeronautics, automotive, watchmaking, for example. These mechanical parts must be made with a very great precision in its dimensions or its shape, and of suitable and constant quality.
    It is therefore necessary to provide dimensional control of each of these parts in order to know if they comply with the required manufacturing tolerances. Such a check is generally carried out on the production line and involves a certain number of dimensional characteristics, namely: the shape and / or size of the teeth, the pitch between each toothing, the orientation of the teeth with respect to the axis main part of the room, etc.
    A conventional solution is to control these parts out of production either manually or using automated dimensional control machines, such as mechanical palpation machines. The latter make it possible to acquire the dimensions and the shape of a part, then to control them.
    However, the visual inspection of the parts does not respond to the high production rates, nor the quality requirements of certain industrial fields, aeronautics and the automobile in particular, some defects remaining difficult to identify with the naked eye.
    Mechanical probing solutions also require a discontinuous control process, which requires a relatively long control time. In addition, the toothed parts generally have a complex shape (the teeth may have a shape and an inclination relative to the axis of the particular part for example) requiring the use of separate machines to allow a control of completeness dimensional characteristics of these parts, which is not optimal. Moreover, the current non-contact control systems do not make it possible to reach the accuracies and rates imposed by the manufacturing industry.
    It would therefore be desirable to provide an automatic control machine capable of accurately, reproducibly and quickly controlling all the dimensional characteristics of toothed mechanical parts.
    3. OBJECTIVES OF THE INVENTION The invention, in at least one embodiment, has the particular objective of overcoming the various disadvantages of these prior art techniques of measurement and dimensional control.
    More specifically, in at least one embodiment of the invention, an object is to provide a control device that allows automatic, complete, fast and non-contact three-dimensional control of a mechanical gear piece.
    4. PRESENTATION OF THE INVENTION
    In a particular embodiment of the invention, there is provided a three-dimensional non-contact control device of a circular mechanical part with teeth having a main axis of rotation, the teeth of said toothing having a defined thickness and depth, each tooth having first and second faces. Said device is such that it comprises: scanning means for each of said teeth, said scanning means comprising at least a first pair of laser measurement modules and means for driving in rotation about the main axis of said piece relative to the laser measuring modules or vice versa; means for constructing a virtual three-dimensional representation of said piece from data coming from said scanning means; dimensional control means from said reconstructed virtual three-dimensional representation; each pair of laser measurement modules comprising a first module oriented towards a first face of a tooth and a second module oriented towards a second face of a tooth; said laser measuring modules being oriented with respect to said workpiece so that during a rotation of said modules or said workpiece around the main axis, said scanning means scan said first and second faces of each tooth; over their entire thickness and depth.
    Thus, thanks to a clever arrangement of at least a pair of laser measuring modules, the three-dimensional control device according to the invention makes it possible to perform automatically and without contact a complete and precise scan of the toothing of the mechanical part to control, regulate. A check of the completeness of the dimensional characteristics of the part can then be carried out from the measuring points coming from the scanning means.
    Unlike existing solutions, the device according to the invention makes it possible to determine a cloud of measuring points of the part in three dimensions and in a few seconds over its entire surface. Depending on the on-board laser technology in the measurement modules and the three-dimensional representation and associated control construction method, it is possible to carry out an ultra-fast piece control (duration approximately between 1 and 5 seconds).
    According to one particular characteristic, each laser measurement module comprises a source of emission of a laser beam oriented with respect to the main axis of rotation and with respect to a radial axis of said part, and of a laser beam receiver. oriented to capture the laser beam from said room.
    One of the conditions on the orientation of modules is that the axis of orientation of the laser beam of the modules can be inclined with respect to the radial axis and the principal axis of rotation, but must not be orthogonal with the main axis of rotation.
    According to one particular aspect of the invention, the laser beam is oriented with respect to the principal axis of rotation of a first angle of between 10 and 45 degrees and with respect to the radial axis of a second angle of between 10 and 45 degrees.
    According to a particular characteristic, said scanning means comprise drive means in translation of the mechanical part along the main axis relative to the laser measurement modules or vice versa.
    Thus, in the case where a mechanical part, such as a toothed wheel, has a toothing of thickness such that the size of the laser beam scanning means allows only a partial scan of the thickness of the toothing, a translation movement of the workpiece relative to the measurement modules or vice versa along the main axis can be performed to ensure a complete scan over the entire thickness of the toothing.
    The device in this configuration can therefore provide a simultaneous or sequential movement in rotation and translation of the workpiece relative to the laser measurement modules or vice versa.
    According to a particular configuration, said circular mechanical toothed piece being a toothed shaft disposed along the main axis and comprising a plurality of teeth arranged one after the other along the main axis of rotation, said scanning means are such that they comprise drive means in translation of the mechanical part along the main axis relative to the laser measurement modules or vice versa.
    The drive means allow a scanning of said first and second faces of each tooth over their entire thickness and depth and for each toothing. This configuration makes it possible to perform a sequential scanning of the different teeth present at different levels on the part (as is the case for multi-toothed shafts for example).
    This configuration also makes it possible to scan the remaining parts of the toothless shaft all the way around (during rotation) and all their height (during translation), in particular to determine the position of the tooth. main axis of rotation of the part.
    According to an alternative, said circular mechanical toothed piece being a toothed shaft disposed along the main axis and comprising a plurality of teeth arranged one after the other along the main axis, said scanning means are such that they comprise at least a second pair of laser measurement modules each placed at each toothing of said plurality to enable said first and second faces of each tooth to be scanned over their entire thickness and depth and for each toothing.
    This configuration makes it possible to perform simultaneous scanning of all the teeth placed at different levels along the main axis of the part (as is the case for multi-toothed shafts for example), which makes it possible to reduce the control time of the room.
    According to a particular aspect of the invention, said scanning means further comprise at least a third pair of laser measurement modules oriented relative to said part so that during the rotation of said modules or said part around of the main axis and during the translation of said modules or said part relative to the main axis, said scanning means further scan said shaft all around and its height.
    This makes it possible to accurately determine the position of the main axis of rotation of the part.
    According to another particular aspect of the invention, said circular mechanical toothed part comprises a circular hole having for axis the main axis of rotation of said part, and wherein said scanning means further comprise at least one laser measurement module additional direction oriented relative to said part so that during the rotation of said modules or said part around the main axis, said scanning means sweep the hole over its entire surface.
    Thus, this makes it possible to control other essential parts of a mechanical gear piece with the simple addition of a laser measurement module. In particular, it makes it possible to determine the exact position of the main axis of the part to be controlled.
    The hole may be through or non-through, have a smooth or non-smooth surface, with grooves or tapping for example.
    According to a particular characteristic, the circular mechanical toothed part belongs to the group comprising: - right-hand toothed part; - helical gear; - Herringbone workpiece.
    This list is not exhaustive.
    According to a particularly advantageous aspect of the invention, the measurement modules are provided with a line-type laser emission source.
    The laser line provides a scan field sufficient to cover the entire depth of the teeth of the room.
    5. LIST OF FIGURES Other features and advantages of the invention will appear on reading the following description, given by way of indicative and nonlimiting example, and the attached drawings, in which: FIG. perspective of a set of measurement modules of a three-dimensional control device, according to a particular embodiment of the invention, performing a scanning of the surface of a toothed wheel; Figs. 2A-2F are schematic views showing different phases of the laser scanning process of the toothed wheel illustrated in the context of the embodiment of Fig. 1; FIG. 3 shows, in the form of functional blocks, the schematic structure of a three-dimensional control device according to a particular embodiment of the invention; Figure 4 shows a perspective view of a three-dimensional control device performing a scan of the surface of a multi-toothed shaft according to a particular embodiment of the invention; FIGS. 5A-5C show partial and detailed views of the control device illustrated in FIG. 4; FIG. 6 represents a diagram illustrating a particular orientation of a laser beam for a measuring module scanning a tooth face.
    6. DETAILED DESCRIPTION
    In all the figures of this document, the elements and identical steps are designated by the same numerical reference.
    FIGS. 1, 2A to 2D show the structure and operation of a three-dimensional non-contact control device 10, according to a particular embodiment of the invention, adapted to the control of circular mechanical parts with teeth. in the form of a toothed wheel (or pinion) 20.
    The control device 10 comprises, in the embodiment illustrated in FIG. 1, a holder 11 which is rotatably mounted with respect to a frame (not shown in the figure). The object holder 11 maintains the gear wheel 20 to be controlled within the device. The object holder 11 cooperates with a system which makes it possible to drive the object holder in rotation, the assembly forming means for rotating the gearwheel according to the invention.
    In general, a toothed wheel 20 has a principal axis of rotation Z and a radial axis X orthogonal to the axis Z. Each tooth of the toothed wheel 20 has a thickness e given along the main axis (corresponding to the segment AB) and a given depth p along the radial axis (corresponding to the AC segment). Each tooth also has two main faces FA and FB. In this example, the thickness of the toothed wheel 20 is 2.5 cm and its depth 1 cm for example.
    The toothed wheel 20 is an annular piece with external toothing and a through hole along its main axis. This hole may have a smooth or tapped internal wall for example.
    In FIG. 1, the control device 10 according to the invention implements four laser measurement modules dedicated to the control of the toothing of the toothed wheel 20, namely: a first pair of laser measurement modules 12A-12B dedicated to a first surface measurement of the teeth of the toothed wheel 20 and a second pair of laser measurement modules 13A-13B dedicated to a second surface measurement of the teeth of the toothed wheel 20. More particularly, each pair of laser measurement modules ( 12A-12B; 13A-13B) consists of a first module (12A; 13A) facing a first face FA of a tooth of the toothing and a second module facing the second face of another tooth of the toothing. . Thus, the first modules 12A and 13A are arranged substantially upwards with respect to the toothed wheel 20 and the second modules 12B and 13B are arranged substantially against the bottom thereof.
    For a given pair of measurement modules, the two measuring modules of a given torque are arranged to measure the same tooth of the toothing or two teeth distinct from the toothing as is the case in FIG. laser measurement module of the two pairs of modules shown here is secured to a frame by means of a support (not shown), which can be configurable or scalable depending on the part to be controlled and its dimensional characteristics. This makes it possible to orient each measuring module appropriately according to the face of the teeth with which it is associated and the dimensions of the toothed wheel 20.
    In the example illustrated here, the laser measurement modules 12A, 12B, 13A and 13B are fixed and it is the object-holder 11 which is rotatable about the main axis Z of the toothed wheel 20. Of course it is possible to envisage an alternative embodiment in which the object carrier 11 is stationary and it is the frame to which the modules are integrally attached which is rotatable about the main axis Z of the toothed wheel 20. The assembly laser measurement modules illustrated here constitutes the laser scanning means of the device according to the invention. The laser scanning means are associated with measurement processing means acquired by the scanning means (the principle of which is detailed below with reference to FIG. 3) in order to reconstruct the three-dimensional surface of the toothed wheel and to carry out dimensional control. of it.
    According to the invention, the laser measurement modules 12A, 12B, 13A and 13B are oriented with respect to the toothed wheel 20 so that during a rotation of the toothed wheel 20 around its main axis Z, the scanning means scan the first and second main faces FA and FB of each tooth of the toothing over their entire thickness e and depth p.
    FIGS. 2A to 2F show different phases of the laser scanning process of the toothed wheel 20 for a given laser measurement module, such as the module 12B for example. Only the laser beam emitted by the measurement module is illustrated here for reasons of readability of the drawings.
    The measurement module 12B is, in this example, a laser measurement module operating according to the principle of laser triangulation. In known manner, such a measurement module is able to measure a distance by angular calculation. It also covers a large measuring range and has a high resolution. Other technologies known as laser triangulation can of course be used without departing from the scope of the invention. The measurement module 12B comprises a laser emission source 121, for example a laser diode, which projects a plane laser beam 16 on one of the faces of the teeth to be scanned (main face FB here) and a laser receiver 122, by for example a sensor type CCD (for "Charge-Coupled Device" in English) or CMOS (for "Complementarity Metal-Oxide Semiconductor" in English). The laser emission source and the corresponding laser receiver are situated on the same face of the measurement module, this face being oriented towards the toothed wheel 20.
    The other measurement modules 12A, 13A and 13B are preferably identical. In general, to maximize the quality of the laser scan, the measurement modules of each pair must be of identical technology.
    When the object carrier 11 (and thus the gear wheel 20) is rotated, the laser beam emitted by the source is reflected on the face FB of the gearwheel 20 whose position or distance from the gear wheel is desired to be known. the laser source (that is to say with respect to the measurement module 12B). The laser receiver 122 is oriented to capture the laser beam from the gear wheel 20. The reflected laser beam reaches the receiver 122 at an angle that is a function of the distance. The position of the laser beam reflected on the receiver 122 as well as the distance separating the source and the receiver from the measurement module 12B make it possible to deduce distance information for each measurement point acquired. The intersection between the laser beam 16 and the face FB of the tooth forms a scanning laser line 18 which moves on the scanned face FB as the toothed wheel 20 rotates about its main axis, as illustrated in FIG. Figures 2A to 2F.
    More particularly, according to the invention, the measurement module 12B is arranged so that the emission source 121 is oriented with respect to the main axis of rotation Z on the one hand and with respect to a radial axis X of the gear 20 on the other hand, so that the laser line 18 covers the entire depth of the toothing p (that is to say from the head to the foot of each tooth) and the laser line 18 sweeps the entire thickness of the toothing e as the rotation of the toothed wheel 20.
    In other words, the measurement module 12B is arranged with respect to the toothed wheel 20 so that the laser line 18 covers the entire depth of the teeth, the scanning of the teeth over their thickness being ensured by rotation of the toothed wheel 20.
    One of the conditions on the orientation of modules is that the axis of orientation of the laser beam of the modules can be inclined with respect to the radial axis and the principal axis of rotation, but must not be orthogonal with the main axis of rotation.
    FIG. 6 illustrates a particular example of orientation of the laser beam of the measurement module 12B with respect to the face of one of the teeth during scanning. P denotes the plane containing the main axis Z and the radial axis X. The measurement module 12B is oriented towards the second face FB so that the laser beam is inclined upwards relative to the radial axis X of an angle θχ between 10 and 45 degrees (for example 30 degrees) and an angle θζ with respect to the main axis of rotation Z of between 10 and 45 degrees (for example 20 degrees). The angles θχ and θζ depend in particular on the angle of inclination of the teeth of the toothing (or helix angle). The angle of inclination usually varies between 15 and 30 degrees, for example for pinion-type parts.
    The same principle applies to the first module 12A of the measurement module pair 12A and 12B, the laser beam of said module 12A to be inclined downwards relative to the radial axis X of the angle θχ to face the corresponding tooth face Fa-
    Finally, in order to perform a scan of the toothed wheel 20 in its entirety (and not only at the teeth of the part), the scanning means comprise a fifth laser measurement module 14, distinct from the two module couples 12A 12B and 13A-13B, placed substantially against the gear 20 so as to allow laser scanning at the upper surface of the gear 20, and more precisely at the through hole. The measurements from this measurement module 14 make it possible in particular to measure the main axis of rotation of the toothed wheel 20 and to control the dimensions of the through hole. The operation of the measuring module 14 is identical to that described above for the other measurement modules. Note that, in cases where the toothed wheel to be tested have teeth of thickness such that the size of the laser beam of the scanning means allows only a partial scan of the thickness of the toothing during rotation, one may provide that the scanning means are further provided with drive means in translation of the toothed wheel 20 along the main axis Z relative to the laser measurement modules (or vice versa), to ensure a complete scan over any the thickness of the toothing. It can therefore be envisaged to provide simultaneous or sequential rotation and translation movement of the workpiece relative to the laser measurement modules (or conversely).
    The number of measurement module pairs is not limited to the example illustrated above. A greater number (that is to say greater than 2) or less important (that is to say less than 2) could be considered without departing from the scope of the invention, in particular according to the complexity of the form the mechanical part, the number of measurement points desired and / or the desired processing time, and / or other parameters that the skilled person deems fit to take into account.
    With reference to FIG. 3, the generic characteristics of a three-dimensional control device 100 according to a particular embodiment of the invention are presented in the form of functional blocks.
    The control device 100 comprises scanning means 110 of each of the teeth of the toothing of the part to be checked. These scanning means are equipped with laser measurement modules and drive means as described above in relation to FIGS. 1, 2A to 2F.
    The control device 100 comprises means of construction 120 of a virtual three-dimensional representation of the workpiece from the data (or measurement points) coming from the scanning means 110. To do this, the control device 100 implements a point cloud processing software and three-dimensional virtual representation of the part to be controlled. The data from the modules is in the form of clouds of coordinate points defined in a three-dimensional space. The time required to record the points is relatively short (between 1 and 30 million points, depending on the number of measurement modules, these points being acquired in a time interval between 1 s and 5 s). Generally, a single 360-degree rotation of the part (at the altitude where a measurement of the part is necessary) is sufficient to acquire all the measurement points necessary for the 3D reconstruction and the dimensional control of the part.
    The control device 100 comprises dimensional control means 130 of the part as a function of the virtual three-dimensional representation obtained by the construction means 120. The control means 130 are configured to deliver 140 at least one representative magnitude of a dimension of the mechanical part or information of acceptance or rejection of the part subjected to the control according to the result of the control carried out by the control means 130 (compliance or not dimensional tolerances and / or geometric imposed, etc.).
    Such a control device easily integrates into a production line.
    With reference to FIGS. 4, 5A to 5C, the structure and operation of a three-dimensional non-contact control device adapted to the control of circular mechanical parts with teeth in the form of a multi-toothed shaft are now presented in relation with FIGS. .
    The control device 1 comprises two vertical arms 6A and 6B in the form of points ensuring the maintenance of the gear shaft 5 at each of its ends along its main axis of rotation. The arm 6B cooperates with a drive system double rotation and translation, allowing the rotation and / or translation of the gear shaft 5 relative to the frame 7, which is fixed thereto. The arm 6A cooperates with a simple drive system in translation (guiding in translation of the shaft along its main axis). These elements form the drive means in rotation and in translation of the device according to the invention. The toothed shaft 5 presented here comprises three teeth 50, 51 and 52 placed at different levels of the shaft along the main axis of rotation Z. The radial axis of the toothing 50, for example, is denoted X, and is orthogonal. Z. Each toothing may be of different type (helical, straight, chevron, etc.) and have different dimensions.
    In the remainder of the description, reference is made initially to the device for controlling the helical teeth 50 of the shaft 5.
    The control device 1 according to the invention implements four laser measurement modules for controlling the toothing 50 of the shaft 5, namely: a first pair of laser measurement modules 2A-2B dedicated to a first surface measurement of the teeth of the toothing 50 and a second pair of laser measurement modules 3A-3B dedicated to a second surface measurement of the teeth of the toothing 50. More particularly, each pair of laser measurement modules (2A-2B; 3A-3B) consists of a first module (2A; 3A) oriented towards a first face FA of a tooth of the toothing and a second module oriented towards the second face of another tooth of the toothing, according to the same principle as that developed higher in relation to the toothed wheel (Figures 1, 2A to 2F). Thus, according to the invention, the laser measurement modules 2A, 2B, 3A and 3B are oriented with respect to the toothing 50 so that during a rotation of the shaft 5 around its main axis Z , the scanning means ensure a scanning of the first and second main faces FA and FB of each tooth of the toothing 50 over their entire thickness and depth.
    In addition to the rotational drive means, there are provided in the control device 1 drive means in translation of the gear shaft 5, to be able to guide the shaft along its main axis Z, during or not the rotation of the gear shaft 5 (a translation movement of the shaft can be implemented simultaneously or not simultaneously with a rotational movement). This allows on the one hand to provide a complete scan over the entire thickness of a toothing when it has a toothing of thickness such that the size of the laser beam of the measuring modules does not cover all the thickness of the toothing. On the other hand, the translation drive means can be activated to move the workpiece along the main axis to allow scanning and acquisition of the measuring points of the other toothings 51 and 52 of the shaft (this has to effect a sweeping of the first and second main faces of each tooth over their entire thickness and depth, and this for each toothing) and possibly other parts of the piece to achieve complete control of the gear shaft 5. Note that to perform a sequential scan of the teeth 50, 51 and 52 by the same pairs of measuring modules, the type of profile and the dimensions must be substantially similar. This depends on the measurement field of the measurement modules used in the control device (the measurement field can effectively vary from a few millimeters to a few centimeters depending on the technology of the measurement modules). If necessary, the orientation of the laser measurement modules 2A, 2B, 3A, 3B must be adapted according to the type of teeth which the piece is equipped with. An automatic module orientation mechanism may be envisaged to adapt in real time to the shape and dimensions of the mechanical part to be controlled.
    This configuration makes it possible to sequentially scan the different parts of the shaft 5 including all the teeth. As an alternative to this configuration, the scanning means may comprise at least one other pair of laser measurement modules (not shown in the figures) placed at each toothing of the shaft to enable scanning and acquisition of measuring points of the faces of each tooth of each toothing throughout their thickness and depth (orientation of the modules configurable in real time).
    This configuration makes it possible to simultaneously scan all the teeth placed at different levels along the main axis of the toothed shaft 6, thus reducing the control time of the part.
    Thus, the device according to the invention allows automatic, complete and contact-free control of a part that may have a complex shape, in particular with several levels of toothing, which may themselves have different tooth profiles, different dimensions (depth, thickness, diameter , etc.).
    In addition, the scanning means can be configured to scan, in addition to the teeth, the surface of the remaining portions of the shaft 5, to determine the position of the main axis of rotation of the workpiece. In an alternative embodiment, this scanning operation is provided by the additional measurement modules 4A, 4B, 4C, 4D, arranged in a fixed manner relative to the frame 7 and perpendicular to the axis of the part. The surface of said remaining portions of the shaft 5 is controlled by activating the rotational drive means and the translational drive means of the shaft 5 with respect to the measurement modules so as to scan the surface of said remaining parts over any their perimeter and over their entire height respectively.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1. Three-dimensional non-contact control device of a circular mechanical part with teeth (20) having a main axis of rotation (Z), the teeth of said toothing having a defined thickness and depth, each tooth having a first and second face (FA, FB), said device comprising: scanning means of each of said teeth, said scanning means comprising at least a first pair of laser measurement modules (12A, 12B) and rotational drive means (11); ) about the main axis of said workpiece relative to the laser measuring modules or vice versa; means for constructing a virtual three-dimensional representation of said piece from data coming from said scanning means; dimensional control means from said reconstructed virtual three-dimensional representation; each pair of laser measurement modules comprising a first module (12A) oriented towards a first face (FA) of a tooth and a second module (12B) oriented towards a second face (FB) of a tooth; said laser measuring modules being oriented with respect to said workpiece so that during a rotation of said modules or said workpiece around the main axis, said scanning means scan said first and second faces of each tooth; over their entire thickness and depth.
    [2" id="c-fr-0002]
    2. Device according to claim 1, wherein each laser measurement module comprises a source of emission of a laser beam oriented with respect to the main axis of rotation and with respect to a radial axis (X) of said part, and an oriented laser beam receiver for sensing the laser beam from said workpiece.
    [3" id="c-fr-0003]
    3. Device according to claim 2, wherein the laser beam is oriented with respect to the main axis of rotation of a first angle of between 10 and 45 degrees and a ratio to the radial axis of a second angle between 10 and 45 degrees. and 45 degrees.
    [4" id="c-fr-0004]
    4. Device according to any one of claims 1 to 3, wherein said scanning means comprise drive means in translation of the mechanical part along the main axis relative to the laser measuring modules or vice versa.
    [5" id="c-fr-0005]
    5. Device according to any one of claims 1 to 3, wherein, said circular mechanical gear piece being a geared shaft disposed along the main axis and comprising a plurality of teeth arranged one after the other along the main axis of rotation, said scanning means comprise drive means in translation of the mechanical part along the main axis relative to the laser measurement modules or vice versa.
    [6" id="c-fr-0006]
    6. Device according to any one of claims 1 to 3, wherein said circular mechanical gear piece is a geared shaft disposed along the main axis and comprising a plurality of teeth arranged one after the other according to the main axis, and wherein said scanning means comprise at least a second pair of laser measuring modules each placed at each toothing of said plurality to allow a scanning of said first and second faces of each tooth over their entire thickness and depth and for each toothing.
    [7" id="c-fr-0007]
    7. Device according to claim 6, wherein said scanning means further comprises at least a third pair of laser measurement modules oriented relative to said part so that during the rotation of said modules or said part around the main axis and during the translation of said modules or said part relative to the main axis, said scanning means further scan said shaft all around and its height.
    [8" id="c-fr-0008]
    8. Device according to any one of claims 1 to 4, wherein said circular mechanical gear piece is a gear comprising a circular hole having the axis of the main axis of rotation of said piece, and wherein said scanning means further comprising at least one additional laser measurement module oriented relative to said workpiece such that during the rotation of said modules or said workpiece about the main axis, said scanning means scan the hole over any its surface.
    [9" id="c-fr-0009]
    9. Device according to any one of claims 1 to 8, wherein the circular mechanical gear part belongs to the group comprising: - spur gear; - helical gear; - Herringbone workpiece.
    [10" id="c-fr-0010]
    10. Device according to any one of claims 1 to 9, wherein the measuring modules are provided with a line-type laser emission source.
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    同族专利:
    公开号 | 公开日
    US20180252517A1|2018-09-06|
    JP2018537693A|2018-12-20|
    FR3043193B1|2019-04-19|
    SI3371549T1|2020-10-30|
    JP6921093B2|2021-08-18|
    US10724852B2|2020-07-28|
    PL3371549T3|2021-01-11|
    ES2803751T3|2021-01-29|
    CA3001939A1|2017-05-11|
    CN108463688A|2018-08-28|
    HUE050710T2|2020-12-28|
    WO2017076854A1|2017-05-11|
    EP3371549A1|2018-09-12|
    US20210108914A1|2021-04-15|
    EP3371549B1|2020-04-01|
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    法律状态:
    2016-11-25| PLFP| Fee payment|Year of fee payment: 2 |
    2017-05-05| PLSC| Publication of the preliminary search report|Effective date: 20170505 |
    2017-11-28| PLFP| Fee payment|Year of fee payment: 3 |
    2020-02-14| PLFP| Fee payment|Year of fee payment: 5 |
    2020-11-13| TP| Transmission of property|Owner name: DWFRITZ AUTOMATION, INC., US Effective date: 20201005 |
    2021-01-12| PLFP| Fee payment|Year of fee payment: 6 |
    2021-10-29| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1560485|2015-11-02|
    FR1560485A|FR3043193B1|2015-11-02|2015-11-02|THREE-DIMENSIONAL CONTACTLESS CONTROL DEVICE OF A MECHANICAL TOOTHPASTE|FR1560485A| FR3043193B1|2015-11-02|2015-11-02|THREE-DIMENSIONAL CONTACTLESS CONTROL DEVICE OF A MECHANICAL TOOTHPASTE|
    JP2018541530A| JP6921093B2|2015-11-02|2016-11-02|A device that performs non-contact three-dimensional inspection of machine parts with teeth|
    CN201680068888.XA| CN108463688A|2015-11-02|2016-11-02|Device for carrying out non-contact 3-D inspection to the mechanical component with toe joint object|
    PL16800893T| PL3371549T3|2015-11-02|2016-11-02|Device for the contactless three-dimensional inspection of a toothed mechanical component|
    EP16800893.6A| EP3371549B1|2015-11-02|2016-11-02|Device for the contactless three-dimensional inspection of a toothed mechanical component|
    ES16800893T| ES2803751T3|2015-11-02|2016-11-02|Non-contact three-dimensional control device of a mechanical part with teeth|
    HUE16800893A| HUE050710T2|2015-11-02|2016-11-02|Device for the contactless three-dimensional inspection of a toothed mechanical component|
    CA3001939A| CA3001939A1|2015-11-02|2016-11-02|Device for the contactless three-dimensional inspection of a toothed mechanical component|
    PCT/EP2016/076337| WO2017076854A1|2015-11-02|2016-11-02|Device for the contactless three-dimensional inspection of a toothed mechanical component|
    SI201630831T| SI3371549T1|2015-11-02|2016-11-02|Device for the contactless three-dimensional inspection of a toothed mechanical component|
    US15/969,314| US10724852B2|2015-11-02|2018-05-02|Device for the contactless three-dimensional inspection of a mechanical component with toothing|
    US16/940,300| US20210108914A1|2015-11-02|2020-07-27|Device for the contactless three-dimensional inspection of a mechanical component with toothing|
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