• 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 invention relates to a welding device head for welding at least a first part to at least a second part at a junction surface, comprising: - at least one means for applying (20) a force of said device (1) on the first piece near the junction surface, - at least one load cell (22) capable of measuring the force applied by the application means (20).
    公开号:FR3020585A1
    申请号:FR1556041
    申请日:2015-06-29
    公开日:2015-11-06
    发明作者:Alexandre Chotard；Enrique Artacho
    申请人:Valeo Iluminacion SA；
    IPC主号:
    专利说明:

    [0001] The subject of the invention is a device for welding a junction surface between a first part and a second part, more particularly for contour welding of three-dimensional molded parts, a head of the welding device, and an associated welding process. The invention applies in particular to a taillight welding for a motor vehicle. It is known a welding device comprising: an optical fiber of laser radiation capable of generating a light beam in a main direction called light emission direction; a moving head intended to direct the light beam emitted by the optical fiber on the welded jointing surface, - a frame, and - an articulated arm relative to the frame for controlling the movement of the movable head. The heat produced by the light beam enables the joining surface to be welded between the first piece and the second piece. However, such a known welding device has a complex structure, comprising many elements, and it turns out that the realization of each element is difficult, as well as the realization of the arrangement of all the elements of the device, and particular of the movable head. This structure, because of its complexity, has reliability problems, which generates, in case of malfunction of the welding device, additional costs difficult to accept in an industrial chain. Another disadvantage lies in the overall weight of the welding device, which is an obstacle to its movement in the production line, slowing down the production speed of the parts and consequently the efficiency of the production line. Furthermore, the movable head often comprises a prism for orthogonally deflecting the light of the light beam emitted by the optical fiber from an input of the movable head to the output of the movable head. Such a prism must be perfectly positioned to return the light beam precisely in the desired direction at the output of the movable head. However, the insertion of the prism into the movable head is not an easy operation and it happens not to dispose the prism precisely to the expected location, resulting in inaccuracy in the direction of emission of the light beam, contributing as a result, the reliability problems of the welding device. In addition, the movable head includes a plurality of gears to allow rotation of the movable head. This plurality of gears is a complex assembly to achieve which also has the disadvantage that its drive is difficult to implement, negatively impacting the displacement accuracy of the light beam directed at the output of the movable head for welding the first part and the second room. Such imprecision in the weld performed can lead to poor welding and therefore to unacceptable manufacturing errors. In addition, it is not uncommon that, because the head of the welding device exerts a very strong pressure on the two parts at the junction surface to ensure a good weld, the pressure is such that one parts break. Debris thus generated can damage the head, and particularly a focusing lens for light rays. Such pressure causes premature wear of the gears located in the head that allow to orient properly. This wear of the gears is reflected by dust (resulting from friction between the gears, it is metal chips) which are deposited on the lens. This deposit subsequently causes the divergence of a laser beam while a good quality of welding requires on the contrary to converge as much as possible the laser beam.
    [0002] The object of the invention is to at least partially overcome these disadvantages. For this purpose, the subject of the invention is a welding device head for welding at least a first part to at least a second part at a joining surface, comprising: at least one application means for a force of said device on the first piece near the junction surface, - at least one load cell capable of measuring the force applied by the application means.
    [0003] Thus, thanks to the present invention, the load cell ensures servocontrol of a speed of movement of the head at a pressure exerted by the application means, which makes it possible to be more regular in the manner of welding, in particular by power modulation of a laser. According to another characteristic of the invention, the head comprises a sleeve and a connection flange of the head to said device, the connection flange being attached to a first end of the sleeve, and the load cell being fixed to the connection flange. . According to another characteristic of the invention, the load cell is attached to one end of the connection flange and the sleeve to another end of the load cell. According to another characteristic of the invention, the load cell comprises first centering means on the connection flange. According to another characteristic of the invention, the load cell comprises passages for fixing means. According to another characteristic of the invention, the load cell has a profile identical to that of the sleeve. According to another characteristic of the invention, the load cell is able to generate a signal relating to the measured force and is connected to an electronic card intended to amplify said signal. According to another characteristic of the invention, the application means is fixed on a wall of the sleeve. According to another characteristic of the invention, the sleeve comprises at least one fastening means adapted to cooperate with at least one means for holding the application means. According to another characteristic of the invention, the means for holding the application means are screws or nuts. According to another characteristic of the invention, the application means is a wheel or roller. According to another characteristic of the invention, the head comprises a damper arranged so as to dampen a movement of the application means. According to another characteristic of the invention, one end of the damper is integral with the application means. According to another characteristic of the invention, another end of the damper is integral with the sleeve. According to another characteristic of the invention, the damper comprises at least one resilient means adapted to deform when said head tends to move closer to or away from the welding surface. According to another characteristic of the invention, the elastic means is a spring.
    [0004] According to another characteristic of the invention, the head comprises at least one light guiding element cooperating with at least one light source for transmitting via an output face of said guiding element a welding light beam in a direction said direction of light. program. According to another characteristic of the invention, the light guiding element is an optical fiber. According to another characteristic of the invention, the welding light beam is a laser beam. According to another characteristic of the invention, the head comprises at least a first optical deflection element capable of cooperating with the exit face of the light-guiding element. According to another characteristic of the invention, the head comprises at least one holding plate, the first optical deflection element being held by said plate. According to another characteristic of the invention, the holding plate is situated inside the sleeve. According to another characteristic of the invention, the first optical element is a collimating means, for example a collimator. According to another characteristic of the invention, the sleeve has a generally cylindrical shape of revolution, and the emission direction of the light beam coincides with an axis of symmetry of the cylinder. According to another characteristic of the invention, the center of the outlet face of the guide element coincides with the axis of symmetry of the cylinder. According to another characteristic of the invention, the head comprises at least one radiation source capable of emitting light rays so as to heat the first part and / or the second part. According to another characteristic of the invention, the radiation source emits at least in part wavelength radiations of between 400 nm and 700 nm.
    [0005] According to another characteristic of the invention, the radiation source has a power of 800 W at 1200 W, preferably 900 W at 1100 W, preferably 1000W. According to another characteristic of the invention, the radiation source is a filament incandescent lamp. According to another characteristic of the invention, the incandescent filament lamp is a halogen lamp. According to another characteristic of the invention, the head comprises a second optical deflection element arranged to focus the light rays coming from the radiation source onto the junction surface. According to another characteristic of the invention, the second optical deflection element is attached to a second end of the sleeve. According to another characteristic of the invention, the second optical deflection element is a convergent lens. According to another characteristic of the invention, the head comprises a third optical deflection element. According to another characteristic of the invention, the third optical deflection element is located in the sleeve, between the first optical deflection element and the third optical deflection element. According to another characteristic of the invention, the third optical deflection element is a collimating lens. The invention also relates to a welding device for welding at least a first part to at least a second part at a junction surface, comprising: - a welding head as described above, and - a light source adapted to cooperate with said welding head to form a welding light beam. According to another characteristic of the invention, the light source comprises at least one semiconductor emitter element. According to another characteristic of the invention, the light source is a laser diode. According to another characteristic of the invention, the light source is capable of emitting light rays whose wavelengths are between 850 nm and 1050 nm, preferably between 930 nm and 990 nm. According to another characteristic of the invention, the light source 15 has a power of between 100 W and 150 W, preferably between 120 W and 140 W. According to another characteristic of the invention, the electronic card is arranged in the device welding. According to another characteristic of the invention, the device comprises an orientation means arranged to orient the welding head to effect a weld. According to another characteristic of the invention, the orientation means is an articulated arm. According to another characteristic of the invention, the articulated arm comprises at least a first substantially elongate portion and at least a second substantially elongated portion, linked to one another by a mechanical connecting element. According to another characteristic of the invention, at least the first part comprises at least one groove extending over at least a part of the length of said part so that the light-guiding element is positioned at least partially in said groove.
    [0006] According to another characteristic of the invention, the first part is linked at one of its ends to the connection flange of the head by mechanical connection. According to another characteristic of the invention, the load cell comprises second centering means on the first part. According to another characteristic of the invention, the load cell comprises passages for fixing means between the connection flange and the first part.
    [0007] The invention also relates to a method of welding a junction surface between a first part and a second part, comprising a step of heating by a light beam emitted at an output of the welding device as described above. According to another characteristic of the invention, the heating step and the welding step are concomitant. According to another characteristic of the invention, the heating step and the welding step are performed at the same location of the joining surface. According to another characteristic of the invention, the method comprises a constant pressure application of the application means of the welding device as described above on the solder joint surface. According to another characteristic of the invention, one of the first and second parts is transparent to the laser beam. According to another characteristic of the invention, one of the first and second parts absorbs the laser beam. According to another characteristic of the invention, the first part comprises at least one plastic polymer, preferably polycarbonate. According to another characteristic of the invention, the first piece comprises polycarbonate.
    [0008] According to another characteristic of the invention, the second part comprises at least one plastic polymer. According to another characteristic of the invention, the first part comprises at least one metal. According to another characteristic of the invention, the second part comprises at least one metal. According to another characteristic of the invention, the method comprises a welding step and during which a speed of movement of the head during the welding step is controlled by a pressure exerted by the head during the welding step.
    [0009] Other features and advantages of the invention will become apparent on reading the description which follows. This is purely illustrative and should be read with reference to the accompanying drawings in which: - Figure 1 illustrates a perspective view of a welding device according to the present invention; FIG. 2a illustrates a schematic representation of a moving head of the welding device of FIG. 1; FIG. 2b illustrates a perspective view of the elements included in the moving head of FIG. 2a; FIG. 3 illustrates a detail of FIG. 2b; and - Figure 4 illustrates a perspective view of the movable head of Figure 2b. Welding device As visible in FIG. 1, the welding device according to the present invention, referenced 1 in the figures, comprises: an optical fiber 2 for laser radiation able to generate a light beam in a direction called light emission direction - a movable head 3, - a frame 4, and - an orientation means 5 arranged to orient the movable head 3 in order to perform a weld, as will be explained later.
    [0010] In FIG. 1, the orientation means 5 is an articulated arm relative to the chassis 4 for controlling the displacement of the moving head 3. The welding device 1 also comprises a main arm 6 on which the arm 5 is hinged relatively to the chassis 4.
    [0011] As can be seen in FIG. 1, the articulated arm 5 comprises a hollow shaft 7 and a control shaft 8 of the movable head 3. The control shaft 8 comprises a first portion 9 arranged integral in motion with the hollow shaft 7. The control shaft 8 comprises a second portion 10 pivotally mounted relative to the first portion 9 by one 11 of its ends 11, 12. The other 12 of its ends is integral with the movable head 3. As visible in FIG. 1, the hollow shaft 7 and the first portion 9 of the control shaft 8 are arranged substantially parallel to each other. The hollow shaft 7 extends from the main arm 6 to a free end 13. The hollow shaft 7 has a length / less than a length L of the first portion 9 of the control shaft 8.
    [0012] The optical fiber 2 is positioned in the welding device 1 so that the optical fiber 2 passes through the free end 13 of the hollow shaft 7 and runs along the first portion 9 and the second portion 10 of the control shaft 8 until 'to the moving head 3.
    [0013] In other words, the optical fiber is in a free space between the end 13 of the hollow shaft 7 and the movable head 3. This arrangement of the optical fiber 2 parallel to the first and second portions 9, 10 ensures that the fiber optic penetrates a center of an inlet of the movable head 3. Head of the welding device The movable head 3 will now be detailed. The head 3 allows the welding of at least a first part to at least a second part at a junction surface S, illustrated in FIG. 1. As more particularly visible in FIGS. 2b and 4, the head 3 comprises: at least one means for applying a force of the device 1 on the first part in the vicinity of the joining surface, and at least one load cell for measuring the force applied by the means 20. Each load cell 22 preferably comprises at least one transducer converting a pressing force exerted by said at least one application means 20 of the device 1. The load cell 22 measures in real time the pressure exerted by the head 3 on the surface S, allowing a reliable and homogeneous welding, as will be detailed below. Preferably, the load cell is capable of generating a signal relating to the measured force and is connected to an electronic card intended to amplify the signal relating to the force measured. As shown in the figures, the application means 20 is preferably a roller. Alternatively, the application means 20 may also be a wheel. As can be seen in FIG. 4, the head 3 also comprises a sleeve 21.
    [0014] The head 3 also comprises a connection flange 23 from the head 3 to the device 1. The connection flange 23 is fixed to a first end 24 of the sleeve 21.
    [0015] The connection flange 23 makes it possible to connect the head 3 to the articulated arm 5. The load cell 22 is fixed to the connection flange 23. As can be seen in the figures, the load cell 22 is attached to one end 25 of the flange. 23 and the sleeve 21 at the other end 26 of the load flange 22. Preferably, the load cell 22 comprises centering means on the connection flange 23, pin-type for example, not shown. Advantageously, the load cell 22 comprises passages for fastening means, such as nuts or screws. As can be seen from the figures, the load cell 22 has a profile identical to that of the sleeve 21. The application means is fixed on a wall of the sleeve 21. Advantageously, the sleeve 21 comprises at least one attachment means adapted to cooperate with at least one means for holding the application means 20. The means for holding the application means are for example screws or nuts. As can be seen in FIG. 2a, the head 3 also comprises a damper 28 arranged so as to dampen a movement of the application means 20. The damper 28 comprises a first end 29 secured to the application means 20. The The damper 28 comprises a second end 30 secured to the sleeve 21. Preferably, the damper comprises at least one resilient means 31 able to deform when the head 3 tends to move towards or away from the welding surface.
    [0016] In the illustrated embodiment, the resilient means 31 is a spring. The head 3 also comprises at least one light guiding element cooperating with at least one light source, not shown for transmitting via an output face 34 of the guiding element a welding light beam F in a direction X said direction d 'program. By guiding element is meant an optical part capable of guiding light by total internal reflection of this light, for example from an entrance zone to an exit zone. In the illustrated embodiment, the light guiding element is the optical fiber 2. Advantageously, the welding light beam F is a laser beam. As shown in the figures, the sleeve 21 has a generally cylindrical shape of revolution, and the emission direction of the light beam F coincides with an axis of symmetry X of the sleeve cylinder 21. The center of the exit face of the Guiding element 32 coincides with the axis of symmetry X of the sleeve cylinder 21. The light beam F emitted by the optical fiber 2 passes through the sleeve 21 substantially along the emission direction coinciding with the axis of symmetry X of the muff. The head 3 also comprises at least one first optical deflection element 35 adapted to cooperate with the outlet face 34 of the light-guiding element 32.
    [0017] Advantageously, the first optical element 35 is a collimation means. Thus, in the illustrated embodiment, the first optical element 35 is a collimator. Preferably, the head 3 also comprises at least one holding plate member 36. As shown in the figures, the first optical deflection element 35 is held by the holding plate 36. The holding plate is located inside. of the sleeve 21.
    [0018] As shown in Figures 2 to 4, the head comprises at least one radiation source 40, said secondary source, capable of emitting light rays so as to heat one of the first and / or second parts.
    [0019] Preferably, the secondary radiation source is configured to generate at least partly wavelength radiation between 400 nm and 700 nm. Advantageously, the secondary radiation source has a power of 800 W to 1200 W, preferably 900 W to 1100 W, preferably 1000W. Advantageously, the radiation source is a filament incandescent lamp, preferably a halogen lamp. As can be seen in FIG. 2, the secondary radiation source 40 comprises a plurality of halogen sources 51. The halogen sources 51 are positioned, preferably in the same plane, around a central orifice O through which the light beam F passes through. a support. As can be seen in FIGS. 2 to 4, the head 3 comprises a second optical deflection element 41 arranged to focus the light rays 20 coming from the radiation source 40 on the junction surface S. The second optical deflection element 41 is attached to a second end 35 of the sleeve 21. In the illustrated embodiment, the second optical deflection element 41 is a converging lens. Advantageously, a lens holder which is screwed or snapped to the second end 42 of the sleeve 21 makes it possible to secure the lens 41 to the sleeve 21. It is noted that the laser beam F passes through the convergent lens 41 at its center and so is not deflected by the lens as it passes through. As shown in FIGS. 2 to 4, the head 3 comprises a third optical deflection element 43.
    [0020] The third optical deflection element 43 is located in the sleeve 21, between the first optical deflection element 35 and the second optical deflection element 41. The third optical deflection element 43 is advantageously a collimating lens. The collimation lens 43 makes it possible to adjust a diameter of the laser beam F and thus to focus it, which ensures a wider or very strong welding on a chosen point of the surface S. The collimation lens 43 is preferably motorized to obtain the desired laser beam F. As can be seen in FIGS. 2a and 2b, the optical fiber 2 enters the mobile head 3 where it passes through the load cell 22 and the connection flange 23 to the collimator 35. The collimator directs the light beam F emitted by the fiber The light beam F then passes through the support of the halogen sources 51 through a central orifice O to the convergent lens 41. The convergent lens 41 forms the exit lens where the optical beam 2 passes to the collimation lens 43. Then the convergent lens 41. the light beam F is focused on the junction surface S. The extent of the light beam F on the junction surface ensures the heating of the parts to allow the welding, as will be explained below. The radiation emitted by the secondary source is directed on a portion of the junction surface close to the extent of the light beam 25 F, or even on the same portion of the junction surface. The association of the infrared secondary source with the laser source allows a better homogeneity of temperature. As is particularly apparent from FIGS. 2a and 2b, the direction of light emission of the light beam at the input of the head 30 substantially coincides with the direction of light emission of the light beam in the movable head 3 to the output 41 of the light beam F out of the welding device 1. This direction coincides with the optical axis X of the movable head 3. Thus, the light beam F directed in the single direction X in the movable head 3, directly illuminates the 21 as seen in FIG. 4, the collimator 35, the retaining plate 36, the lens 43 and the support element of the secondary sources 51 are fitted into the sleeve 21 forming a protection cylinder.
    [0021] Welding Process The invention will now be described in connection with the method of welding the joining surface S between the first piece and the second piece. The method comprises a heating step and a welding step by the light beam F emitted at the output of the welding device 1. Preferably, the heating step and the welding step are concomitant. It is noted that advantageously the heating step and the welding step are performed in the same area of the surface S.
    [0022] Advantageously, the application means 37 of the welding device 1 applies during welding a constant pressure on the joint surface to be welded. Preferably, the speed of the head 3 during welding is controlled by the pressure exerted by the head 3 during welding.
    [0023] Advantageously, the method comprises a preliminary step of entering a map of reference pressures to be reached according to the location of the robot's head on the surface S. Then, the method comprises a step of measuring the pressure in real time by the load cell 22, during welding. Then, the method comprises a step of comparison between the reference map and the value measured by the load cell. Then, the method comprises a step of adjusting the application force exerted by the application means 20 as a function of the speed of the welding head 3 and, preferably, the elasticity of the part to the the welding surface in the surface S. This results in a reliable and homogeneous weld of the junction surface S. The method according to the present invention is advantageously applied to parts such as one of the first and second parts is transparent to the laser beam while, preferably, the other part absorbs the laser beam. The absorbent part absorbs the laser beam, which has the effect of melting by heating said part and then melting the transparent part by thermal conduction between the absorbent part and the transparent part. Advantageously, the first piece comprises at least one plastic polymer, preferably polycarbonate. For example, the second part comprises at least one plastic polymer. Alternatively, the first part comprises at least one metal and / or the second part comprises at least one metal. The heating is concomitant with the laser beam F. It allows to heat essentially the transparent part. This results in a better conformation of the latter with respect to the absorbent part and therefore a better contact between the two parts, in particular because there is less air at the junction surface between the two parts. two pieces. Advantages The present invention has many advantages, due to the arrangement of the arms of the welding device and the arrangement of the optical fiber parallel to the control arm on the one hand, and, on the other hand, the arrangement of the elements in the moving head. In particular, this arrangement ensures that the light beam emitted by the optical fiber has a straight path along a single direction from the entrance of the optical fiber in the movable head to the exit of the light beam from the lightning device. welding. This straight path makes it possible to overcome the deflection prism used in the state of the art, to simplify the structure of the moving head, and to improve the accuracy of the control of the path of the light beam on the surface to be welded. In addition, the load cell and the force sensor ensure a very high reliability of the welding device without the need to resort to the complex system of gears of the state of the art.
    [0024] Moreover, unlike the state of the art, there is no movement within the head itself.
    权利要求:
    Claims (16)
    [0001]
    REVENDICATIONS1. Head for welding device (1) for welding at least a first part to at least a second part at a joining surface (S), comprising: - at least one means (20) for applying a force said device (1) on the first piece near the junction surface, - at least one load cell (22) capable of measuring the force applied by the application means (20).
    [0002]
    2. Head according to claim 1, comprising a sleeve (21) and a connecting flange (23) of the head (3) to said device (1), the connecting flange (23) being fixed at a first end (26). ) of the sleeve (21), and - the load cell (22) being fixed to the connection flange (23).
    [0003]
    3. Head according to the preceding claim, wherein the load cell (22) has a profile identical to that of the sleeve (21).
    [0004]
    4. Head according to one of the preceding claims, wherein the load cell (22) is adapted to generate a signal relative to the measured force and is connected to an electronic card for amplifying said signal.
    [0005]
    5. Head according to any one of claims 1 to 4, wherein the application means (20) is integral with a wall of the sleeve (21).
    [0006]
    6. Head according to any one of the preceding claims, comprising a damper (28) arranged to dampen a movement of the application means (20).
    [0007]
    7. Head according to one of the preceding claims, comprising at least one light guide element (2) cooperating with at least one light source for transmitting via an output face of said guide element a welding light beam in one direction ( X) said direction of emission.
    [0008]
    8. Head according to the preceding claim, comprising at least a first optical deflection element (35) adapted to cooperate with the output face of the light guide element.
    [0009]
    9. Head according to one of claims 7 or 8, wherein the sleeve (21) has a generally cylindrical shape of revolution, and the emission direction of the light beam (F) coincides with an axis of symmetry (X) of the cylinder.
    [0010]
    10. Head according to the preceding claim, wherein a center of the outlet face of the guide member coincides with the axis of symmetry (X) of the cylinder. 20
    [0011]
    11. Head according to any one of the preceding claims, comprising at least one radiation source capable of emitting light rays so as to heat the first part and / or the second part. 25
    [0012]
    12. Head according to the preceding claim, comprising a second optical deflection element (41) arranged to focus the light rays from the radiation source on the junction surface. 30
    [0013]
    Welding device for welding at least a first part to at least a second part at a joining surface, comprising: a welding head (3) according to any one of the preceding claims, and - a light source adapted to cooperate with said welding head to form a welding light beam (F).
    [0014]
    14. Device according to the preceding claim, comprising an orientation means (5) arranged to orient the welding head (3) to perform a weld.
    [0015]
    15. A method of welding a junction surface (S) between a first part and a second part, comprising a step of heating by a light beam (F) emitted at an outlet (21) of the welding device (1) according to one of claims 13 or 14.
    [0016]
    16. The welding method according to the preceding claim, comprising a welding step and during which a speed of movement of the head during welding step is controlled by a pressure exerted by the head during the welding step.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2867960B1|2019-05-01|Device for stripping electric cables using violet or blue laser diodes
    EP0205359B1|1989-12-13|Bidirectional opto-electronic component forming an optical coupler
    EP0209449B1|1991-01-23|Deformable mirror
    EP0224437B1|1989-07-12|Optical apparatus with a radiant beam for the automatic control of the bending operation during the bending with a press brake
    FR2714488A1|1995-06-30|Optical signal processing device for turbomachinery.
    EP0159210B1|1989-05-24|Optical device for surface proximity detection and its application to the retrieval of a surface profile
    FR3020585A1|2015-11-06|HEAD FOR WELDING DEVICE
    FR2712082A1|1995-05-12|Laser-ray pendulum level
    EP0233091B1|1990-04-11|Apparatus for focusing a light beam, and optical fibre fusion splicer using said apparatus
    EP2577707B1|2014-04-09|Adjustable cathodoluminescence detection system and microscope employing such a system
    EP0934797B1|2003-03-12|Thermographic camera position control method used in the welding field
    FR2709837A1|1995-03-17|Optical distance measuring apparatus, and lens and photoreceptor element for its implementation.
    FR2696968A1|1994-04-22|Robotic manipulator hand for three=dimensional workpiece treatment, e.g. of car body components
    EP2577706B1|2014-07-23|Flexible cathodoluminescence detection system and microscope employing such a system
    EP3489665B1|2020-05-13|System for monitoring degradation and fouling of a mirror
    EP0633424B1|1997-10-22|Fiber optics light source arrangement with steerable light beam
    FR3061676B1|2019-06-14|PRINTING AND DRYING INSTALLATION AND PRINTING AND DRYING METHOD
    FR2633081A1|1989-12-22|Opto-electronic proximity detector
    EP0096615B1|1986-08-20|Optical switch
    EP0185592A1|1986-06-25|Detection apparatus for the contactless measurement of the temperature
    EP0096608B1|1987-01-21|Optical fibre collimator, application to the realisation of optical switches
    FR2567651A1|1986-01-17|Equipment for measuring the speed of a projectile by interferometry using a laser beam propagated by a single optical waveguide
    EP3864397A1|2021-08-18|Dark-field optical inspecting device
    FR2619737A1|1989-03-03|LASER CUTTING HEAD
    EP3144589A1|2017-03-22|Lighting device, in particular for a motor vehicle, and headlamp comprising such a device
    同族专利:
    公开号 | 公开日
    FR3020585B1|2017-04-21|
    WO2017001027A1|2017-01-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1110703A2|1999-12-24|2001-06-27|BIELOMATIK LEUZE GmbH + Co.|Apparatus and method for hot plate welding|
    WO2004058485A1|2002-12-27|2004-07-15|Laserquipment Ag|Method and device for welding thermoplastic material shaped parts, particularly for contour-welding three-dimensional shaped parts|
    DE10354526A1|2003-11-17|2005-06-23|Bielomatik Leuze Gmbh + Co.Kg|Industrial robot with multi-axis movement for friction welding of components has a friction welding unit whose individual actions are controled via an additional control line linked to robot control unit|
    JP2007118491A|2005-10-31|2007-05-17|Hitachi Metals Ltd|Method and apparatus for welding resin bodies|
    JP2010105376A|2008-10-30|2010-05-13|Ma Tech Kk|Method and device for resin welding by laser beam|
    US20130233464A1|2012-03-08|2013-09-12|Thomas Breuer|Welding method and device for carrying out the method|EP3205481A1|2016-02-12|2017-08-16|odelo GmbH|Method and device for connecting lens and lamp housing of a vehicle light using laser welding|
    EP3603939A4|2017-03-29|2020-12-30|Toyota Customizing & Development Co., Ltd.|Joining system and joining method|
    FR3109021A1|2020-04-02|2021-10-08|Elwedys|ELECTROCHEMICAL CELL ASSEMBLY|
    法律状态:
    2016-04-15| PLSC| Search report ready|Effective date: 20160415 |
    2016-07-08| PLFP| Fee payment|Year of fee payment: 2 |
    2017-06-30| PLFP| Fee payment|Year of fee payment: 3 |
    2018-06-27| PLFP| Fee payment|Year of fee payment: 4 |
    2020-06-30| PLFP| Fee payment|Year of fee payment: 6 |
    2021-06-30| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1556041A|FR3020585B1|2015-06-29|2015-06-29|HEAD FOR WELDING DEVICE|FR1556041A| FR3020585B1|2015-06-29|2015-06-29|HEAD FOR WELDING DEVICE|
    PCT/EP2015/071983| WO2017001027A1|2015-06-29|2015-09-24|Head for a welding device|
    [返回顶部]