• 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:
    The present invention relates to a tool for decorating a decorative component (31) of a solid material, comprising: a haptic manipulation device (10) comprising a control member (11) configured to be manipulated by the hand of a user; a laser device (20) connected to the control member (11) so that the manipulations of the control member (11) by the user control the orientation of a laser beam (21) produced by the laser device (20) for machining the component (31) to form a decorative pattern (32) within a predefined area (34) of the component; wherein the control member (11) provides a tactile feel on the hand of the user during manipulations to reproduce sensations of machining on said hand. The present invention also relates to a method of machining a component using said tool. The component can be a watchmaking or jewelry component, or a writing instrument.
    公开号:CH715041A2
    申请号:CH6602019
    申请日:2019-05-22
    公开日:2019-11-29
    发明作者:Stalder Frank；Mignon Edouard；Bellouard Yves
    申请人:Richemont Int Sa；
    IPC主号:
    专利说明:

    Description Technical Field [0001] The present invention relates to a tool for decorating a decorative component in a solid material and a method of machining a component using said tool. The present invention also relates to a component comprising a decorative pattern machined using said method.
    State of the art Crafts relate to the manufacture of objects or decorative components produced manually using traditional materials and tools. Watchmaking and jewelery products often include an artisanal component (often described as a “craft” component) such as the dial or the decorated back of a timepiece, the pendant of a necklace or the body of a writing instrument.
    The distinctive value of an artisanal product is notably linked to the distinctive and unique elements associated with manual creation by the artisan. The expression of these elements is in particular dictated by artistic, creative and aesthetic aspects which are inseparable from the craftsman himself. Artisans' products can be made either entirely by hand, or by hand tools or even mechanical means. In all cases, the direct manual contribution of the craftsman remains the most important element of the finished product or component.
    BRIEF SUMMARY OF THE INVENTION The present invention relates to a tool for decorating a decorative component made of a solid material, comprising: a haptic manipulation device comprising a control member configured to be manipulated by the hand of a user; a laser device which can be linked to the control member so that the manipulations of the control member by the user control the orientation of a laser beam produced by the laser device and intended to machine the component, so as to form a decorative pattern within a predefined area of the component; in which the control member provides a tactile feeling on the hand of the user during manipulations in order to reproduce sensations of machining on said hand.
    The present invention also relates to a method of manufacturing a decorative component using said tool, comprising the steps of:
    providing support and mounting the component on the support; and perform the machining of the component with the laser beam, the decorative pattern formed by the machining being defined by the manipulation of the control member of the haptic manipulation device.
    Advantageously, the invention provides an artisan with a new high-tech tool to widen the choice of medium to express his talents. The haptic feedback creates a virtual workspace that reproduces the sensations of engraving on the hand of the craftsman, even sensations similar to direct sculpture in a solid material. In addition, the tool allows engraving at the heart of very hard transparent materials, and not only on the surface.
    This ability to form handcrafted creations in the volume of the material offers a new space for artistic creation and is possible thanks to the use of a laser emitting ultra-short pulses. The association of optics and a laser with robotics according to the invention offers the artist, this hitherto inaccessible creative space, by allowing him to "sculpt" the material into its volume while keeping a freedom of creation and complete expression.
    This meeting of high technology and high craftsmanship tradition gives birth to a unique concept of workshops revolutionizing the way of manufacturing complex objects by offering unexpected opportunities to the artist.
    The decorated object can be a watch or jewelry product or component, a writing instrument, or any other decorative component or component intended to be decorated.
    The tool also allows the craftsman to work, manually, transparent or translucent materials for example: glass, mineral glass, corundum, quartz, sapphire, synthetic ruby, polycrystalline ruby, silica, a glass ceramic, a ceramic or a polymer. Sapphire in particular is a material widely used in timepieces for glass, back glasses and other components. The term “translucent or transparent material” means a material which allows all or part of the light rays having a wavelength visible to the human eye as well as the wavelength (s) of the laser used to modify the structure of the component to pass.
    Brief description of the figures Examples of implementation of the invention are indicated in the description illustrated by the appended figure in which:
    Fig. 1 shows a tool for decorating a component, according to one embodiment;
    Fig. 2 shows an example of a very enlarged engraving carried out using the tool;
    CH 715 041 A2
    Fig. 3 shows an example of a haptic manipulation device;
    Fig. 4 shows an example of lines made by the tool;
    Fig. 5 shows an example of an optical arrangement included in the tool.
    Example (s) of embodiment of the invention [0012] FIG. 1 shows a tool 100 for decorating a component 31 made of solid and hard material, according to one embodiment. The tool 100 includes a haptic manipulation device 10 comprising a control member 11 configured to be manipulated by the hand of a user. For example, the control member may correspond to a laser focusing micro-device which can be held in the hand, as illustrated in FIG. 3. The tool 100 comprises a laser device 20 emitting a laser beam 21 intended to machine the component 31 so as to form a decorative pattern 32 on the component 31.
    The laser device 20 is linked to the control member 11, either directly or by means of a remote control system, so that the manipulations of the control member 11 by the user can control the orientation of a laser beam 21 inside a predefined area 34 of the component 31. Preferably, the laser device 20 is mechanically mounted integral with the control member 11, but in variants these elements can be mounted separately and the manipulations of the control member 11 can be transmitted to the laser device 20 by a control system (not illustrated by the tool 100). The tool 100 is configured so that the control member 11 provides a tactile feeling on the hand of the user during manipulations in order to reproduce sensations of machining on said hand.
    In the case where the tool is remotely operated, the user manipulates a first haptic interface not including the laser device 20. The first haptic interface is connected to a second haptic interface combined with the laser device 20. The handling of the first haptic interface by the user makes it possible to actuate the second haptic interface and thus produce the engraving remotely. The first and second haptic interfaces can be the same or different from each other. According to one embodiment, the first and the second haptic interface are of the Omega 6 type.
    In the context of remote manipulation, it is possible to connect the first haptic interface, manipulated by the user, to several second haptic interfaces each carrying a laser device 20. A manipulator is thus able to burn several components 31 identically and simultaneously.
    During a remote operation, the amplitude of the movements exerted by the manipulator on the first haptic interface can be strictly identical to that transmitted to the laser device 20 by the second haptic interface. Alternatively, the amplitude of the movements transmitted to the laser device 20 can be reduced or amplified so that the size of the patterns engraved on the component 31 can be modulated. The precision of the patterns and their quality can thus be improved, in particular for the smallest patterns which can be subjected to any gestural defects of the manipulator.
    According to one embodiment, the manipulations of the remote control member 11 and of the forces exerted by the user make it possible to control the power of the laser beam 21. The haptic feedback gives the user information concerning the movements and the forces that the user generates on the control member 11.
    According to another embodiment, the tactile feeling comprises a vibration effect simulating the contact of a sculpting tool with the material during machining.
    The haptic handling device 10 can take different forms. In the example illustrated in fig. 1, the haptic manipulation device 10 corresponds to the sigma.7 ™ machine manufactured by the company Force Dimension Technologies Sàrl (Nyon, Switzerland) comprising a very agile robotic arm with seven degrees of freedom. The haptic manipulation device 10 comprises an active control member 11 comprising a contact surface 111 being adapted for contact by at least part of a hand of a user, a base plate 12, a parallel kinematic structure 13 disposed between the base plate 12 and the control member 11. The parallel kinematic structure provides three degrees of freedom of translation on the control member 11 so that the orientation of the control member 11 is constant relative to the base plate 12. A haptic manipulation device of this type is described in detail in US Patent 8,667,860.
    In yet another embodiment, the haptic manipulation device 10 is configured to provide an audible signal during the manipulations. For example, a sound can signal to the user when the laser beam 21 is positioned inside the predefined area 34 of the component 31 for the creation of the pattern 32 inside this area 34. Thus, the artist can then be aware if it is in the engraving space (the predefined zone 34) even before switching on the laser device 20.
    In one embodiment, the sound signal comprises a “grinding” type sound which can change depending on the rate of ablation of the material by the laser beam 21. The “grinding” type sound can also change depending of the pressure exerted by the user's hand on the control member 11 of the haptic handling device 10.
    CH 715 041 A2 [0022] According to one embodiment, the sounds produced by the haptic manipulation device 10 can be preselected by the user from a preset list of sounds. The nature and intensity of the sounds can then be chosen by the user. One or more of the sounds provided in the tool settings can be turned on or off by the user. According to one embodiment, the tool 100 comprises at least one controller 40 connected to the haptic manipulation device 10 so as to manage the operating parameters of the haptic manipulation device 10. The controller 40 can also, or alternatively, be connected to the laser device 20 so as to manage the operating parameters of the laser device 20. The sounds produced by the haptic manipulation device 10 can be part of the operating parameters of the laser device 20.
    In the example of FIG. 1, the controller 40 is shown in the form of a portable device (such as a laptop or smartphone) connected to the haptic manipulation device 10 and / or to the laser device 20 by means of a wireless type connection 41. Other configurations are however possible. For example, the controller 40 can be included in the haptic manipulation device 10 and / or the laser device 20. The controller 40 can also take the form of a computer or a remote server provided with a wired connection or without thread.
    The operating parameters of the laser device 20 controlled by the controller 40 can include the pulse duration, the superposition of the pulses and the power of the laser device 20.
    In one embodiment, the controller 40 includes means for viewing the machining of the component 31 in real time.
    The display means may include a camera 42 and a display device 43. Again in the example illustrated in FIG. 1, the display means comprise the camera 42 of the portable device 40 and the display device comprises the LCD screen 43 of the portable device 40. Obviously, other configurations of the display means can be envisaged. According to a possible arrangement, the display means can comprise a set of stereoscopic screens making it possible to assess the depths. Two stereoscopic screens can thus be placed at a distance from the user so as to allow him to visualize his gestures and the piece to be sculpted both on the screens and in real life, as illustrated in fig. 4. Alternatively, the display means can encompass the entire field of vision of the user so as to avoid any external disturbance. Glasses allowing the projection of stereoscopic images or adapted to virtual reality or augmented reality, can then be used in this context. In the case of virtual or augmented reality, the appropriate imaging programs are provided, as well as any position sensors of the laser device 20 relative to the component 31 or to other repositories. According to such arrangements, the display means can be separated from the controller 40. Alternatively, the controller 40 can be integrated with the display means. The controller 4 can for example take the form of a computer.
    Still according to one embodiment, the controller 40 controls the laser device 20 so as to stop the emission of the laser beam 21 when the latter is outside a predefined area 34 on the component 31. This is therefore only when the user enters the control member 11 in the predefined area 34 of the pattern 32 that the laser device can be activated. The signal provided by the haptic manipulation device 10 when the laser beam 21 is positioned inside the predefined area 34 can also be monitored by the controller 40.
    Still according to one embodiment, the laser device 20 comprises an oscillator and optical means for focusing the laser beam 21 in a desired manner. One or more optical elements included in the laser device 20 can be controllable so as to correct any optical aberrations. In particular, the optical aberrations resulting from the relief of the component 31 can be eliminated or reduced, which allows better control of the depths or thicknesses of the relief during the etching of the component 31.
    According to one embodiment, the laser device 20 is provided with means for analyzing the plasma generated at the level of the component 31 so as to detect changes in the state of the material and to adapt the power of the laser beam Consequently. Fig. 6 schematically shows an example of an optical arrangement suitable for this embodiment. Such an optical arrangement comprising for example a laser generator G coupled to a power control module MP and to an injection module Ml in a first optical fiber F1. The first optical fiber F1 is oriented towards a set of dichroic lenses and mirrors M by means of a swiveling fiber head TF1. The laser beam 21 is then directed towards the objective O in a controlled manner to generate a plasma at the level of the component 31. Part of the light reflected by the component 31, passing through the objective O towards the set of dichroic mirrors M, is reflected by the set of dichroic mirrors M to a second optical fiber F2. The second optical fiber F2 conducts the light thus collected through one or more filters W. The light is then detected and analyzed by a detector D, connected to a control device C. The control device C makes it possible to modulate the power of the beam laser by acting on the MP power module. The control device C can, for example, take the form of a computer or any equivalent computer device enabling the tool to be controlled. The control device C can alternatively take the form of a controller 40 as described above. The frequency of the laser pulses and their intensity can then be instantly and automatically modulated according to the characteristics of the plasma. The operational parameters are then at least partly subject to the state of the material being etched.
    According to such an arrangement, the power of the laser beam 21, depending on the forces exerted by the user on the control member 11, can be modulated automatically according to the state of the material of the component 31. This
    CH 715 041 A2 makes it possible to limit the power of the laser beam 21 to a maximum value despite the forces exerted by the user and thus to prevent deterioration of the component 31.
    According to one embodiment, the optical arrangement making it possible to analyze the state of the material being etched can also be used for detection purposes outside of the etching operations. When the power of the laser beam is insufficient to allow etching, the light reflected by the component 31 can be collected and analyzed by means of the system described above. Areas already machined can then be detected and distinguished from areas not yet machined. Such an arrangement makes it possible, for example, to control the quality of the engravings or their conformity. Insufficient laser power to allow etching can be obtained by limiting the power of the laser beam by means of the power control module MP. Alternatively, a residual light emission, such as a third harmonic, can be detected.
    Preferably, the laser device 20 comprises an ultra-short pulse laser. For example, the laser device 20 includes a laser whose pulse duration is between 1 femtosecond and 1000 femtoseconds. Alternatively, pulse durations in the picosecond range can be used.
    Still according to one embodiment, the control member 11 takes the form of a sculpting tool, a brush, or a pen. Such a configuration of the control member 11 makes it possible to give a more real effect to the user. Thus, the laser device 20 coupled to the haptic manipulation device 10 assists the craftsman in his gestures, while leaving him the freedom to express by gesture his creative intentions, the result always being an original artisanal creation of the user.
    According to one embodiment, a method of machining a component 31 using the tool 100 of the invention, comprises the steps of:
    providing a support 30 and mounting the component 31 on the support 30; and perform the machining of the component 31 with the laser beam 21, the decorative pattern 32 formed by the machining being defined by the manipulation of the control member 11 of the haptic manipulation device 10.
    In general, the direction and the power of the laser beam 21 are dependent on the manipulations and the forces exerted by the user on the control member 11.
    According to one embodiment, the method comprises a step of selecting the operating parameters of the laser device 20 on the controller 40 according to the material and the machining to be carried out.
    In particular, the operating parameters make it possible to modulate the widths of engraving lines. To do this, the laser device 20 can be fixed on a vibrating support (not shown), the amplitude of the vibrations is controlled. The amplitude of the vibrations defines the thickness of the etching lines on the element 31, as illustrated in FIGS. 2 and 5. A line thickness of the order of a few micrometers, from 1 to 10 micrometers, can then be controlled.
    According to another embodiment, the selection of the material of the component 31 and the operating parameters of the laser device 20 are selected so that the decorative pattern 32 machined is directly visible. Indeed, for certain types of materials, the laser device 20 can structure the material in a way which makes the pattern 32 directly visible.
    According to another embodiment, the method further comprises a chemical etching step allowing the decorative pattern 32 to be engraved.
    Indeed, for other types of materials such as silica glass (fused silica) or sapphire, structuring using the laser device 20 can make the pattern 32 more exposed to chemical etching. The machining process can then include a step of chemical etching of the pattern produced with the laser device 20 in order to form the desired decorative pattern 32.
    For example, first, using the laser device 20, the structure of the component 31 is modified throughout the volume of material to be removed to form the scratches. This geometric structuring can create nanometric stripes in the material, or even stripes having nanometric dimensions at least for their width and their depth. These scratches constitute hollows, in the form of indentations, notches or furrows dug in the component 31 thanks to the structural modification carried out by the laser device 20 in each point of material to be removed in order to etch the scratches by chemical etching. . These scratches can for example be carried out by the “Selective Laser-induced Etching” (SLE) or “In-Volume Selective Laser-induced Etching” (ISLE) technique.
    Subsequently, for the chemical etching step, a liquid chemical agent is provided which allows the material to have the volume of the component 31, the structure of which has been modified by the laser 20 in the previous step, to be dissolved more quickly than the other areas of matter whose structure has not been modified. Next, the component 31 with the modified structure volume is immersed in a bath composed of the liquid chemical agent, and the component 31 is maintained for a predetermined time in the bath so that all of the material of the structure volume modified is dissolved. Finally, the component 31 thus formed is taken out of the bath, and it is washed in order to remove all traces of the chemical agent and thus stop the chemical reaction between the liquid chemical agent and the material of the component 31.
    Other complementary decoration steps can also be carried out.
    CH 715 041 A2 For example, according to one embodiment, the method comprises a step of filling the decorative pattern 32 engraved with a material different from that in which the component 31 is made.
    For example, the engraved pattern can be filled with a material such as a colored paint, for example Superluminova ™, or the like, so as to give a particular appearance or color to the decorative pattern 32.
    The present invention also relates to a component 31 comprising a decorative pattern 32 machined using the machining method described here.
    The component 31 can for example be: a watch component, a jewelry component, a component of a writing instrument.
    Reference numbers used in the figures [0049] haptic manipulation device
    100 control unit tool
    111 contact surface base plate parallel kinematic structure laser device laser beam support component decorative pattern predefined area controller connection camera display device
    G laser generator
    MP power control module
    Ml injection module
    F1, F2 optical fibers
    Μ dichroic mirrors
    O objective
    TF1 fiber optic head
    D detector
    C control device w filters
    权利要求:
    Claims (30)
    [1]
    claims
    1. Tool (100) for decorating a decorative component (31) made of a solid material, comprising:
    CH 715 041 A2 a haptic manipulation device (10) comprising a control member (11) configured to be manipulated by the hand of a user;
    a laser device (20) linked to the control member (11) so that the manipulations of the control member (11) by the user control the orientation of a laser beam (21) produced by the laser device (20) and intended to machine the component (31), so as to form a decorative pattern (32) inside a predefined area (34) of the component (31);
    wherein the control member (11) provides a tactile feeling on the hand of the user during manipulations in order to reproduce sensations of machining on said hand.
    [2]
    2. The tool according to claim 1, in which the manipulations of the control member (11) and of forces exerted by the user control the power of the laser beam (21).
    [3]
    3. The tool according to claim 1 or 2, wherein said tactile feeling comprises a vibration effect simulating the contact of a sculpting tool with the material during machining.
    [4]
    4. The tool according to one of claims 1 to 3, wherein the haptic manipulation device (10) is configured to provide an audible signal during said manipulations.
    [5]
    5. The tool according to claim 4, wherein the sound signal indicates that the laser beam (21) is positioned inside the predefined area (34).
    [6]
    6. The tool according to claim 4 or 5, wherein the sound signal comprises a grinding type sound which changes as a function of the ablation rate of the material by the laser beam (21).
    [7]
    7. The tool according to claim 6, in which the sound changes as a function of the pressure exerted by the user's hand on the control member (11).
    [8]
    8. The tool according to claim 1, further comprising at least one controller (40) connected to the haptic manipulation device (10) and to the laser device (20) so as to manage the operating parameters of the haptic manipulation device (10) and the laser device (20).
    [9]
    9. The tool according to claim 8, wherein said parameters include the pulse duration, the superposition of pulses and the power of the laser device (20).
    [10]
    10. The tool according to claim 8 or 9, wherein the controller (40) comprises display means (43, 43) of the machining of the component (31) in real time.
    [11]
    11. The tool according to claim 10, in which the display means comprise a camera (42) and a display device (43).
    [12]
    12. The tool according to claim 8 or 9, in which the controller (40) is detached from the display means, and in which the display means are selected from a set of stereoscopic screens or glasses adapted to virtual reality or augmented reality.
    [13]
    13. The tool according to one of claims 8 to 12, wherein the controller (40) controls the laser device (20) so as to stop the emission of the laser beam (21) when the latter is outside d 'a predefined area (34) on the component (31).
    [14]
    14. The tool according to one of claims 1 to 13, wherein the laser device (20) is an ultra-short pulse laser comprising an oscillator and optical means for focusing the laser beam (21).
    [15]
    15. The tool according to claim 14, in which the duration of the pulses is between 1 femtosecond and 1000 femtoseconds, or in the picosecond range.
    [16]
    16. Tools according to any one of claims 1 to 15, wherein one or more optical elements included in the laser device (20) are controllable.
    [17]
    17. Tool according to claim 16, further comprising a detector D, making it possible to collect and analyze the light reflected by the component 31, the detector D being connected to a control device C making it possible to automatically modulate the power of the laser beam. (21) depending on the state of the material of the component (31).
    [18]
    18. The tool as claimed in claim 17, in which the detector D is also used outside of the etching operations to identify the etched and non-etched areas, and to control the quality of the etchings.
    [19]
    19. Tool according to either of claims 1 to 18, in which the laser device (20) is fixed on a vibrating support whose amplitude of vibration can be controlled, so as to modulate the thickness of the lines engraving on the component (31).
    [20]
    20. The tool according to one of claims 1 to 15, wherein the control member (11) takes the form of a sculpting tool, a brush, or a pen.
    [21]
    21. The tool according to any one of claims 1 to 20, in which the laser device (20) and the control member (11) are mounted separately and the manipulations of the control member (11 ) are transmitted to the laser device (20) by a remote control system.
    CH 715 041 A2
    [22]
    22. The tool according to claim 21, in which a first haptic interface not comprising a laser device is connected to a second haptic interface associated with a laser device (20).
    [23]
    23. Method for manufacturing a decorative component (31) using the tool (100) according to one of claims 1 to 22, comprising the steps of:
    providing a support (30) and mounting the component (31) on the support (30); and performing the machining of the component (31) with the laser beam (21), the decorative pattern (32) formed by the machining being defined by the manipulation of the control member (11) of the haptic manipulation device (10 ).
    [24]
    24. The method according to claim 23, in which the direction and the power of the laser beam (21) are dependent on the manipulations and on the forces exerted by the user on the control member (11).
    The method according to claim 23 or 24, wherein the tool (100) comprises at least one controller (40) connected to the laser device (20), so as to manage the operating parameters of the laser device (20);
    the method comprising a step of selecting the operating parameters of the laser device (20) on the controller (40) according to the material and the machining to be carried out.
    [25]
    25. The method according to one of claims 23 to 24, comprising the selection of the material of the component (31) and the operating parameters of the laser device (20) so that the decorative pattern (32) machined is directly visible.
    [26]
    26. The method according to one of claims 23 to 25, comprising the selection of the material of the component (31) and the operating parameters of the laser device (20) so that the decorative pattern (32) machined is selective chemical etching;
    the method further comprising a chemical etching step for etching the decorative pattern (32).
    [27]
    27. The method according to claim 16, further comprising a step of filling the decorative pattern (32) engraved with a material different from that in which the component (31) is made.
    [28]
    28. Component (31) comprising a decorative pattern (32) machined using the method according to one of claims 23 to 27.
    [29]
    29. The component (31) according to claim 28, comprising one of: a watch component, a jewelry component, a component of a writing instrument.
    [30]
    30. The component according to one of claims 28 and 29, the component comprising a transparent or translucent material such as glass, mineral glass, corundum, quartz, sapphire, synthetic ruby, polycrystalline ruby, silica , a glass ceramic, a ceramic or a polymer.
    CH 715 041 A2
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH6442018|2018-05-23|
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