Laser cleaning device

Abstract

The present invention provides a laser cleaning device, which includes: multiple laser generators, a reflector group, which has a rotation axis, and the reflector group includes multiple reflective surfaces arranged around the rotation axis; the multiple reflective surfaces correspond to the multiple laser generators, and each laser generator is used to emit light to the corresponding reflective surface; and each light can be reflected by the corresponding reflective surface; a driving device, the driving device is transmission-connected to the reflector group, and the driving device is used to drive the reflector group to rotate around the rotation axis, so that each reflective surface can rotate relative to the corresponding laser generator; and then the light reflected by the multiple reflective surfaces can form a roughly annular light spot. The embodiment of the present application provides a laser cleaning device, which can reduce the complexity and production cost of cleaning work, and improve the efficiency of cleaning work.

Description

Technical Field

[0001] The invention relates to the field of laser cleaning, and in particular to a laser cleaning device. Background Art

[0002] The laser cleaning device can be used to emit pulsed laser onto the contaminated layer to generate shock waves, and the shock waves can break the contaminants into fragments and then be removed.

[0003] Existing laser cleaning devices generally process light through a galvanometer. And the light beam obtained after processing the light with a galvanometer is linear. For precision instruments or other items that need to be cleaned, there are some annular, circular, conical or irregular objects. Therefore, the use of linear light beams for cleaning requires other methods to complete, which increases the complexity and production cost of the cleaning work and reduces the efficiency of the cleaning work.

[0004] Therefore, it is necessary to provide a laser cleaning device to overcome the above defects. Summary of the invention

[0005] In view of this, an embodiment of the present application provides a laser cleaning device, which can reduce the complexity and production cost of the cleaning work and improve the efficiency of the cleaning work.

[0006] The above-mentioned purpose of the present invention can be achieved by adopting the following technical scheme: a laser cleaning device, comprising: multiple laser generators, a reflector group, which has a rotation axis, the reflector group includes multiple reflective surfaces arranged around the rotation axis; the multiple reflective surfaces correspond to the multiple laser generators, each of the laser generators is used to emit light to the corresponding reflective surface; and each of the light rays can be reflected by the corresponding reflective surface; a driving device, the driving device is transmission-connected to the reflector group, the driving device is used to drive the reflector group to rotate around the rotation axis, so that each of the reflective surfaces can rotate relative to the corresponding laser generator; and thus the light reflected by the multiple reflective surfaces can form a roughly annular light spot.

[0007] As a preferred implementation, the extension direction of each of the reflective surfaces is consistent with the extension direction of the rotation axis.

[0008] As a preferred implementation, the plurality of reflection surfaces intersect in a straight line, and the straight line forms the rotation axis.

[0009] As a preferred embodiment, each of the laser generators has a central axis, each of the laser generators can emit light along the extension direction of its central axis, and the first angles other than 0° or 180° formed between the extension direction of each central axis and the extension direction of the corresponding reflecting surface are equal.

[0010] As a preferred embodiment, the rotation axis extends in the up-down direction, each of the laser generators is located below the corresponding reflecting surface; and the central axis of each of the laser generators extends obliquely.

[0011] As a preferred embodiment, the multiple reflective surfaces are evenly arranged around the rotation axis, and the multiple laser generators are evenly arranged around the rotation axis so that each of the reflective surfaces can receive the light emitted by the multiple laser generators at the same point when rotating.

[0012] As a preferred implementation, each of the reflective surfaces includes a first surface and a second surface that are opposite to each other in a direction perpendicular to the rotation axis.

[0013] As a preferred implementation, each of the reflecting surfaces is connected via a connector, the driving device is a motor, and a rotating shaft of the motor is connected to the connector.

[0014] As a preferred embodiment, it includes: a focusing mirror, which is located on one side of the reflector group, and the light reflected by the multiple reflective surfaces can form the light spot on the side of the focusing mirror facing away from the reflector group.

[0015] As a preferred embodiment, the laser generator includes a laser for emitting light and a mechanical arm having a central axis, and the mechanical arm can rotate relative to the laser to adjust the propagation direction of the light.

[0016] The beneficial effect of the laser cleaning device provided by the present application is as follows: the laser cleaning device of the embodiment of the present application is provided with a plurality of laser generators, a reflector group and a driving device, wherein the reflector group includes a plurality of reflective surfaces arranged around a rotation axis; in this way, each reflective surface can rotate relative to the corresponding laser generator when the driving device drives the reflector group to rotate around the rotation axis, so that the light reflected by each reflective surface can form an arc-shaped light spot along the circumferential direction, and then the light reflected by the plurality of reflective surfaces can form a roughly annular light spot. When there are some annular, circular, conical or irregular objects in the precision instruments or other items to be cleaned, it is only necessary to extend the laser cleaning device described in the embodiment of the present application into the inner wall of the device to be cleaned, so that the light spot is hit on the inner wall, and the inner wall can be cleaned along the circumferential direction, so that it does not need to be completed by other means, thus reducing the complexity and production cost of the cleaning work and improving the efficiency of the cleaning work. Therefore, the embodiment of the present application provides a laser cleaning device, which can reduce the complexity and production cost of the cleaning work and improve the efficiency of the cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a front view of a laser cleaning device provided by an embodiment of the present invention;

[0019] Figure 2 is a top view of a laser cleaning device provided by an embodiment of the present invention;

[0020] Figure 3 is a side view of a laser cleaning device provided by an embodiment of the present invention;

[0021] Figure 4 It is a schematic structural diagram of a reflector assembly provided in an embodiment of the present invention.

[0022] Description of reference numerals:

[0023] 11. Laser generator; 13. Reflection surface; 15. Driving device; 23. Connector; 25. Focusing mirror; 27. Robotic arm; 29. ​​Laser; 31. Top wall; 33. Bottom wall; 35. Side wall; 37. Light. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figures 1 to 4 The laser cleaning device provided in one embodiment of the present application may include: a plurality of laser generators 11, a reflector group having a rotation axis, the reflector group including a plurality of reflective surfaces 13 arranged around the rotation axis; the plurality of reflective surfaces 13 correspond to the plurality of laser generators 11, each of the laser generators 11 is used to emit a light 37 to the corresponding reflective surface 13; and each of the light 37 can be reflected by the corresponding reflective surface 13; a driving device 15, the driving device 15 is transmission-connected to the reflector group, the driving device 15 is used to drive the reflector group to rotate around the rotation axis, so that each of the reflective surfaces 13 can rotate relative to the corresponding laser generator 11; and thus the light 37 reflected by the plurality of reflective surfaces 13 can form a roughly annular light spot.

[0026] It can be seen from the above technical scheme that the laser cleaning device of the embodiment of the present application is provided with a plurality of laser generators 11, a reflector group and a driving device 15, wherein the reflector group includes a plurality of reflective surfaces 13 arranged around a rotation axis; in this way, each reflective surface 13 can rotate relative to the corresponding laser generator 11 when the driving device 15 drives the reflector group to rotate around the rotation axis, so that the light 37 reflected by each reflective surface 13 can form an arc-shaped light spot along the circumferential direction, and then the light 37 reflected by the plurality of reflective surfaces 13 can form a roughly annular light spot. When there are some annular, circular, conical or irregular objects in the precision instruments or other objects to be cleaned, it is only necessary to extend the laser cleaning device described in the embodiment of the present application into the inner wall of the device to be cleaned so that the light spot is hit on the inner wall, and the inner wall can be cleaned along the circumferential direction, so that it does not need to be completed by other means, thereby reducing the complexity and production cost of the cleaning work and improving the efficiency of the cleaning work.

[0027] like Figures 1 to 3 As shown, in this embodiment, there are multiple laser generators 11. That is, there are at least 2, 3, 4, etc. laser generators 11. This application does not make any provisions. Preferably, there are 3 laser generators 11. Thus, the reflected light of the light 37 emitted by the three laser generators 11 can form a complete annular light spot (i.e., a light spot that is continuous along the circumferential direction). In this way, it is ensured that the inner wall of the device to be cleaned can be cleaned, that is, the laser cleaning device of the embodiment of the present application has no cleaning dead angle, thereby further reducing the complexity and production cost of the cleaning work and improving the efficiency of the cleaning work.

[0028] In one embodiment, the laser generator 11 includes a laser 29 for emitting a light 37 and a mechanical arm 27 having a central axis, and the mechanical arm 27 can rotate relative to the laser 29 to adjust the propagation direction of the light 37. Thus, by adjusting the propagation direction of the light 37, the position and direction of the light 37 emitted by the laser generator 11 are adjusted. And by adjusting the propagation direction of the light 37, the size of the light spot formed by the multiple reflection surfaces 13 can be adjusted, so that the laser cleaning device of the embodiment of the present application can adapt to the devices to be cleaned with different inner diameters. Specifically, the laser 29 can adopt an existing structure, which is not specified in this application. The mechanical arm 27 and the laser 29 can be connected by a pin shaft. Of course, the mechanical arm 27 and the laser 29 are not limited to being connected by a pin shaft, and can also be other connection methods, such as hinged, which is not specified in this application.

[0029] like Figures 1 to 4 As shown, in this embodiment, the reflector assembly has a rotation axis. Figure 1 , Figure 4As shown, the rotation axis extends in the up-down direction. The reflector group includes a plurality of reflective surfaces 13 arranged around the rotation axis. The plurality of reflective surfaces 13, i.e., the reflective surfaces 13, are at least 2, 3, 4, etc. This application does not make any provision for this. However, the plurality of reflective surfaces 13 corresponds to the plurality of laser generators 11. That is, the number of reflective surfaces 13 is equal to the number of laser generators 11. For example, there are 3 laser generators 11. There are 3 reflective surfaces 13. Furthermore, since the plurality of reflective surfaces 13 are arranged around the rotation axis, the light 37 reflected by each reflective surface 13 when it rotates can form an arc-shaped light spot along the circumference of the rotation axis.

[0030] Further, each laser generator 11 is used to emit a light 37 to the corresponding reflection surface 13. That is, the multiple laser generators 11 respectively emit light 37 to the corresponding reflection surfaces 13. Each light 37 can be reflected by the corresponding reflection surface 13. That is, when there are three laser generators 11 and three reflection surfaces 13, the reflected light of the light 37 emitted by the three laser generators 11 can be emitted through the three reflection surfaces 13.

[0031] In one embodiment, the extension direction of each reflective surface 13 is consistent with the extension direction of the rotation axis. This consistency means that the extension direction of each reflective surface 13 is parallel to the extension direction of the rotation axis or the rotation axis is located inside each reflective surface 13. Figure 4 As shown, the rotation axis extends vertically in the up-down direction. Each reflecting surface 13 extends vertically in the up-down direction, and the rotation axis is located in each reflecting surface 13. As a result, when each reflecting surface 13 rotates relative to the corresponding laser generator 11, the center of the arc-shaped light spot formed by each reflecting surface 13 can be located on the rotation axis. And the arc-shaped light spots formed by multiple reflecting surfaces 13 can be arranged circumferentially to form a roughly annular light spot. The light spot can refer to a light spot formed by the light 37 projected on the water surface or the ground. Further, the center of the light spot formed by the light 37 reflected by the multiple reflecting surfaces 13 can be located on the rotation axis, that is, the energy of the light 37 reflected by the multiple reflecting surfaces 13 is evenly distributed circumferentially relative to the rotation axis. In this way, when there are some annular, circular, conical or irregular objects in the precision instruments or other items to be cleaned, it is only necessary to extend the laser cleaning device described in the embodiment of the present application into the inner wall of the device to be cleaned, so that the light spot is hit on the inner wall, and the inner wall can be evenly cleaned along the circumferential direction, thus ensuring the quality of cleaning.

[0032] like Figure 4As shown, specifically, each reflecting surface 13 includes a top wall 31 and a bottom wall 33 facing each other in the direction of the rotation axis, and two side walls 35 located between the top wall 31 and the bottom wall 33, and the two side walls 35 face each other in a direction perpendicular to the rotation axis. Preferably, each reflecting surface 13 includes a first surface and a second surface facing each other in a direction perpendicular to the rotation axis. Thus, when each reflecting surface 13 rotates, the light 37 emitted by the laser generator 11 can be reflected by the first surface and the second surface, thereby increasing the energy of the reflected light of the reflecting surface 13, and further increasing the energy of the light 37 used for cleaning.

[0033] Furthermore, each reflecting surface 13 is formed of a double-sided mirror, that is, each double-sided mirror is placed vertically in the up and down directions, and the sizes of the double-sided mirrors are the same.

[0034] In one embodiment, the plurality of reflective surfaces 13 intersect in a straight line. And the straight line forms a rotation axis. Figure 4 As shown, the multiple reflective surfaces 13 intersect on the center line A. The center line A forms a rotation axis. That is, each reflective surface 13 rotates around the center line A, so that the center of the annular light spot formed by the light 37 reflected by the multiple reflective surfaces 13 can be located on the center line A. Specifically, a side wall 35 of each reflective surface 13 is connected, so that the multiple reflective surfaces 13 intersect on a straight line.

[0035] In one embodiment, each laser generator 11 has a central axis. Specifically, the central axis is the central axis of the robot arm 27. Figure 1 As shown, the mechanical arm 27 of each laser 29 is tilted relative to the corresponding reflective surface 13. Therefore, the central axis of each mechanical arm 27 extends tilted relative to the corresponding reflective surface 13. Each laser generator 11 can emit light 37 along the extension direction of its central axis. For example, Figure 1 As shown, each laser generator 11 can emit light 37 along a direction extending obliquely relative to the corresponding reflection surface 13 .

[0036] Furthermore, the first angle not being 0° or 180° formed between the extension direction of each central axis and the extension direction of the corresponding reflecting surface 13 is equal. This ensures that the reflection angle of the light 37 reflected by each reflecting surface 13 is not 0° or 180°. This ensures that the light 37 reflected by each reflecting surface 13 can form an arc-shaped light spot instead of converging at one point. On the other hand, it ensures that the incident angle of the light 37 emitted by each laser generator 11 is equal. In this way, the reflection angle of the light 37 reflected by each reflecting surface 13 is equal. This makes the energy of the light 37 reflected by multiple reflecting surfaces 13 evenly distributed in the circumferential direction relative to the rotation axis.

[0037] Furthermore, the plurality of reflective surfaces 13 are evenly arranged around the rotation axis. Figure 4 As shown, the angle between adjacent reflection surfaces 13 among the three reflection surfaces 13 is 120°, so that the light 37 reflected by the multiple reflection surfaces 13 can form a complete annular light spot.

[0038] Furthermore, the multiple laser generators 11 are evenly arranged around the rotation axis so that each reflective surface 13 can receive the light 37 emitted by the multiple laser generators 11 at the same point when rotating. That is, in order to enable the rotating reflective surface 13 to obtain the laser to be reflected at the same point, the multiple laser generators 11 are evenly arranged around the rotation axis. This ensures that the energy of the light 37 reflected by the multiple reflective surfaces 13 can form a regular pattern, such as a cone. Specifically, Figure 2 As shown, the extension directions of the central axes of the three laser generators 11 intersect to form an equilateral triangle, so that the propagation directions of the light 37 emitted by each laser generator 11 intersect to form an equilateral triangle, thereby ensuring that the three rotating reflection surfaces 13 can obtain the laser to be reflected at the same point.

[0039] Furthermore, if Figure 1 As shown, since the three laser generators 11 are evenly arranged around the rotation axis, the multiple reflective surfaces 13 are evenly arranged around the rotation axis. Therefore, the cone formed by the light 37 reflected by the three reflective surfaces 13 is a right circular cone. This further ensures that the laser cleaning device described in the embodiment of the present application can evenly clean the device to be cleaned, thereby ensuring the cleaning quality.

[0040] Preferably, the rotation axis extends in the up-down direction, and each laser generator 11 is located below the corresponding reflective surface 13; and the central axis of each laser generator 11 extends obliquely. Thus, the light 37 reflected by the multiple reflective surfaces 13 can extend upward obliquely, thereby forming an annular light spot above the laser generator 11. Further, when there are three laser generators 11, the central axes of the three laser generators 11 are distributed in a regular pyramid shape. Thus, when the reflector group is running at a high speed, the light 37 reflected by the three reflective surfaces 13 forms a headless cone-shaped geometric figure. There is a blank inside the cone.

[0041] In this embodiment, the driving device 15 is a motor. The driving device 15 is in transmission connection with the reflector assembly. Specifically, the rotating shaft of the motor is in transmission connection with the reflector assembly. Further, the extending direction of the rotating shaft of the motor is colinear with the extending direction of the rotating axis. That is, the rotating shaft of the motor extends vertically in the up-down direction. Thus, when the motor rotates, the motor can drive the reflector assembly to rotate through its rotating shaft.

[0042] In one embodiment, each reflective surface 13 is connected via a connector 23, and the shaft of the motor is connected to the connector 23. Specifically, the connector 23 is located below the reflector assembly. One end of the connector 23 is connected to the reflector assembly, and the other end of the connector 23 is connected to the shaft of the motor. The connection method can be screw connection, bolt connection, welding, integrated molding, etc.

[0043] In this embodiment, the driving device 15 is used to drive the reflector group to rotate around the rotation axis, so that each reflective surface 13 can rotate relative to the corresponding laser generator 11, thereby completing the conversion of the light emitting direction and scanning frequency of the light 37 emitted by the corresponding laser generator 11. Thereby, the light 37 reflected by the multiple reflective surfaces 13 can form a light spot along the circumferential direction. Specifically, the driving device 15 can drive the reflector group to rotate around the rotation axis at a high speed.

[0044] In one embodiment, the laser cleaning device of the embodiment of the present application further includes: a focusing mirror 25. The focusing mirror 25 is used to focus the light 37 emitted from the reflection surface 13 so that the light 37 emitted from the reflection surface 13 becomes relatively concentrated, thereby increasing the energy of the light 37.

[0045] Furthermore, the focusing mirror 25 is located on one side of the reflector assembly. Figure 1 As shown, the focusing mirror 25 is located on the upper side of the reflector assembly. The light 37 reflected by the multiple reflective surfaces 13 can form a light spot on the side of the focusing mirror 25 facing away from the reflector assembly. Figure 1 As shown, the light 37 reflected by the plurality of reflection surfaces 13 can form a light spot on the upper side of the focusing mirror 25 .

[0046] The method of using the laser cleaning device described in the embodiment of the present application is as follows:

[0047] In the first step, the laser 29 generates a light beam, which is adjusted by the mechanical arm 27 and hits the reflector. At this time, the motor is in a static state.

[0048] The second step is to start the motor, which drives the reflector to rotate at high speed. The direction of the light changes after passing through the first surface or the second surface of the reflector. At this time, the light 37 reflected by a reflector can form an arc-shaped light spot. When the central axes of the three robotic arms 27 have the same first angle relative to the corresponding reflectors, the light spots formed by the three reflectors can form a light beam ring. When the central axes of the three robotic arms 27 have different first angles relative to the corresponding reflectors, another non-circular arc-shaped light beam is formed.

[0049] In the third step, under the action of the focusing mirror 25, the light 37 reflected by the reflector group can hit the surface of the object in a circular shape. After passing through the focusing mirror 25, the emitted light has a cleaning ability.

[0050] The fifth step is to extend the cleaning head into the inner wall of the device to be cleaned, and adjust the central axis of each mechanical arm 27 relative to the first angle of the corresponding reflector to make the light spot on the inner wall of appropriate size.

[0051] Step 6: Start cleaning the inner wall of the device.

[0052] It should be noted that, in the description of this application, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0053] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather with reference to the foregoing claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended to be a waiver of such subject matter, nor should it be considered that the applicant has not considered such subject matter to be part of the disclosed application subject matter.

Claims

1. A laser cleaning device, characterized in that: include: Multiple laser generators, A reflector assembly having a rotation axis, wherein the reflector assembly comprises a plurality of reflective surfaces arranged around the rotation axis; The plurality of reflection surfaces correspond to the plurality of laser generators, each of the laser generators is used to emit light to the corresponding reflection surface; and each of the light rays can be reflected by the corresponding reflection surface; A driving device, the driving device is in driving connection with the reflecting mirror group, the driving device is used to drive the reflecting mirror group to rotate around the rotating axis, so that each of the reflecting surfaces can rotate relative to the corresponding laser generator; thereby, the light reflected by the multiple reflecting surfaces can form a substantially annular light spot; The extending direction of each of the reflecting surfaces is consistent with the extending direction of the rotation axis; The plurality of reflection surfaces intersect in a straight line, and the straight line forms the rotation axis.

2. The laser cleaning device according to claim 1, characterized in that: Each of the laser generators has a central axis, and each of the laser generators can emit light along the extension direction of its central axis, and the first angles other than 0° or 180° formed between the extension direction of each central axis and the extension direction of the corresponding reflecting surface are equal.

3. The laser cleaning device according to claim 2, characterized in that: The rotation axis extends in the up-down direction, each of the laser generators is located below the corresponding reflecting surface; and the central axis of each of the laser generators extends obliquely.

4. The laser cleaning device according to claim 2, characterized in that: The plurality of reflection surfaces are evenly arranged around the rotation axis, and the plurality of laser generators are evenly arranged around the rotation axis so that each of the reflection surfaces can receive the light emitted from the plurality of laser generators at the same point when rotating.

5. The laser cleaning device according to claim 1, characterized in that: Each of the reflection surfaces includes a first surface and a second surface that are opposite to each other in a direction perpendicular to the rotation axis.

6. The laser cleaning device according to claim 1, characterized in that: Each of the reflecting surfaces is connected via a connector, the driving device is a motor, and the rotating shaft of the motor is connected to the connector.

7. The laser cleaning device according to claim 1, characterized in that: It includes: A focusing mirror, wherein the focusing mirror is located at one side of the reflector group, and the light reflected by the plurality of reflecting surfaces can form the light spot on a side of the focusing mirror facing away from the reflector group.

8. The laser cleaning device according to claim 1, characterized in that: The laser generator comprises a laser for emitting light and a mechanical arm with a central axis, wherein the mechanical arm can rotate relative to the laser to adjust the propagation direction of the light.

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