Laser processing apparatus, laser cleaning head, laser cleaning machine, and laser marking machine

Abstract

The application relates to a laser processing device, a laser cleaning head, a laser cleaning machine and a laser marking machine. The laser processing device comprises a shell, a light transmission assembly, a refraction assembly and a galvanometer assembly. The light inlet of the shell is used for receiving first laser. The light transmission assembly is used for optically processing the first laser and outputting second laser. The refraction assembly is used for refracting the second laser and outputting third laser. The second light inlet of the refraction assembly is oppositely arranged with the first light outlet, and the second light inlet is used for receiving the second laser. The second light outlet of the refraction assembly is used for outputting the third laser. The angle between the direction of the second laser and the direction of the third laser is greater than 90 degrees and less than or equal to 180 degrees. The galvanometer assembly is used for converting the third laser into scanning laser. The scanning laser is emitted through the light outlet. The application can shorten the length of the laser processing device, thereby being beneficial to reducing the volume of the laser processing device and making the internal structure of the laser processing device more compact.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, and in particular to a laser processing device, a laser cleaning head, a laser cleaning machine, and a laser marking machine. Background Technology

[0002] Laser cleaning is a novel laser surface treatment technology that is more environmentally friendly and efficient than traditional cleaning methods. It utilizes a high-energy laser beam projected onto the surface of the object to be cleaned. Contaminants on the surface (mill scale, rust, dirt, organic coatings, etc.) absorb the laser energy, causing them to evaporate, vaporize, melt, ablate, or peel off instantaneously. The vapor then carries these contaminants away from the surface, thus achieving cleaning or purification. Laser cleaning does not require chemical reagents, does not produce secondary pollution, and features non-abrasive, non-contact, non-thermal effects, and applicability to various materials.

[0003] Laser marking is a technique that uses a high-energy-density laser beam to etch text, patterns, or codes onto the surface of materials, achieving permanent, high-precision marking. It can be used for static marking, such as for fixed workpieces (e.g., bathroom fixtures, medical devices), engraving trademarks or serial numbers on metal or plastic surfaces. It can also be used, for example, to print expiration dates on food packaging.

[0004] Laser flying marking uses a laser head to mark moving objects in real time on an assembly line, requiring synchronous control of the laser and the object's movement.

[0005] Laser cleaning heads are a common tool for achieving the aforementioned laser cleaning methods, while laser marking machines are a common tool for achieving the aforementioned laser marking or laser-in-flight marking. The drawbacks of existing laser cleaning heads and laser marking machines are their large size and non-compact internal structure. Utility Model Content

[0006] The purpose of this application is to provide a laser processing device, a laser cleaning head, a laser cleaning machine, and a laser marking machine, with the aim of reducing the length and volume of the laser processing device and making the internal structure more compact.

[0007] To achieve the above objectives, in a first aspect, this application provides a laser processing device, comprising: a housing, an internal cavity, an inlet at one end of the housing, and an outlet at the other end, the inlet being for receiving a first laser emitted by a laser; an optical transmission component disposed within the cavity, the optical transmission component for optically processing the first laser and outputting a second laser; the optical transmission component includes a first inlet end and a first outlet end, the first inlet end being opposite to the inlet end and for receiving the first laser; the first outlet end being for outputting the second laser; a refraction component disposed within the cavity, the refraction component for refracting the second laser and outputting a third laser; the refraction component includes a second inlet end and a second outlet end, the second inlet end being opposite to the first outlet end and for receiving the second laser; the second outlet end being for outputting the third laser; the angle between the direction of the second laser and the direction of the third laser is greater than 90 degrees and less than or equal to 180 degrees; and a galvanometer assembly disposed within the cavity, the galvanometer assembly for converting the third laser into a scanning laser; the scanning laser is emitted through the outlet. Since the length of the laser processing equipment is related to the optical path length of the laser injection direction at the light inlet (e.g., it must be greater than this optical path length), and in this embodiment, the laser direction changes by more than 90 degrees through the refraction component, thereby effectively shortening the optical path length of the laser injection direction at the light inlet, and thus shortening the length of the laser processing equipment, which in turn helps to reduce the size of the laser processing equipment and make the internal structure of the laser processing equipment more compact.

[0008] Based on the first aspect mentioned above, in one possible implementation, the refractive component includes a first reflecting surface and a second reflecting surface. The first reflecting surface is disposed opposite to the second light-incident end and the second reflecting surface, and is used to receive the second laser and reflect the second laser to the second reflecting surface. The second reflecting surface is disposed opposite to the second light-exit end, and is used to reflect the received laser to the second light-exit end, so that the second light-exit end outputs the third laser. By setting two reflecting surfaces, the direction of the second laser can be made opposite to or nearly opposite to the direction of the third laser, thereby shortening the optical path length in the laser incident direction as much as possible. This allows for minimizing the optical path length with the fewest reflecting surfaces, which not only helps to reduce the size of the laser processing equipment but also minimizes costs.

[0009] Based on the first aspect or any of the above possible implementations, in another possible implementation, the first reflecting surface and the second reflecting surface are arranged perpendicularly to each other. The angle between the first reflecting surface and the direction of the second laser is 45 degrees. The angle between the second reflecting surface and the direction of the third laser is also 45 degrees. This structural design allows for the formation of a basically symmetrical optical path, resulting in an angle of 180 degrees between the directions of the second and third lasers. This is more conducive to shortening the optical path length in the laser injection direction within the laser processing equipment, and thus further facilitates reducing the size of the laser processing equipment.

[0010] Based on the first aspect or any of the possible implementations described above, in another possible implementation, the refractive component is a prism. The prism includes a first side surface and a second side surface arranged opposite to each other. The first side surface is the first reflecting surface, and the second side surface is the second reflecting surface. By providing a prism that simultaneously includes a first reflecting surface and a second reflecting surface, the structure becomes more compact, which is more conducive to reducing the size of the laser processing equipment.

[0011] Based on the first aspect or any of the possible implementations described above, in another possible implementation, the prism further includes a third side and a fourth side disposed opposite to each other, with the third side connecting the first side and the second side, and the fourth side connecting the first side and the second side; both the second light-incident end and the second light-exit end are disposed on the fourth side. By disposing both the second light-incident end and the second light-exit end on the fourth side, separate designs are not required, thus simplifying the manufacturing process and making the prism structure more compact.

[0012] Based on the first aspect or any of the above possible implementations, in another possible implementation, the third side and the fourth side are arranged in parallel, which can also make the structure of the prism more compact, which is beneficial to saving the internal space of the laser processing equipment and reducing the size of the laser processing equipment.

[0013] Based on the first aspect or any of the possible implementations described above, in another possible implementation, the prism further includes a fifth and a sixth side face arranged opposite to each other. The fifth side face is connected to the first, second, third, and fourth side faces, and the sixth side face is connected to the first, second, third, and fourth side faces. At least one of the fifth and sixth side faces is an isosceles trapezoid. This generally symmetrical prism design simplifies the manufacturing process and makes the prism structure more compact, thus reducing the size of the laser processing equipment.

[0014] Based on the first aspect mentioned above, in another possible implementation, the refractive component includes a third reflecting surface; the third reflecting surface is disposed opposite to the second light-incident end and the second light-outceasing end; the third reflecting surface is used to receive the second laser and reflect the second laser to the second light-outceasing end, so that the second light-outceasing end outputs the third laser. By providing a reflecting surface, the volume of the refractive component can be minimized as much as possible, thereby reducing the space occupied by the refractive component inside the laser processing equipment, which is beneficial to reducing the volume of the laser processing equipment.

[0015] Based on the first aspect mentioned above, in another possible implementation, the refractive component includes at least three reflective surfaces; one reflective surface is disposed opposite to the second light-incident end, and another reflective surface is disposed opposite to the second light-outceasing end; the second laser entering through the second light-incident end is reflected sequentially by each reflective surface, and then the third laser is output from the second light-outceasing end.

[0016] Secondly, this application provides a laser cleaning head that includes the laser processing device described in the first aspect or any possible implementation thereof. This laser cleaning head also possesses all the beneficial effects of the laser processing device described in the first aspect or any possible implementation thereof, and therefore will not be elaborated upon here.

[0017] Thirdly, this application provides a laser cleaning machine that includes the laser processing equipment described in the second aspect above. This laser cleaning machine also possesses all the beneficial effects of the laser cleaning head described in the second aspect above, and therefore will not be elaborated upon here.

[0018] Fourthly, this application provides a laser marking machine that includes the laser processing equipment described in the first aspect or any possible implementation thereof. This laser marking machine also possesses all the beneficial effects of the laser processing equipment described in the first aspect or any possible implementation thereof, and therefore will not be elaborated upon here. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the laser processing apparatus provided in this application;

[0020] Figure 2 An exploded structural diagram of an embodiment of the laser processing apparatus provided in this application;

[0021] Figure 3 This is a partial structural schematic diagram of an embodiment of the laser processing apparatus provided in this application;

[0022] Figure 4 A partial exploded structural diagram of an embodiment of the laser processing apparatus provided in this application;

[0023] Figure 5A A schematic diagram of an optical path for an embodiment of the refractive component provided in this application;

[0024] Figure 5B Another optical path schematic diagram of an embodiment of the refractive component provided in this application;

[0025] Figure 5C Another optical path schematic diagram of an embodiment of the refractive component provided in this application;

[0026] Figure 6 A schematic diagram of the structure of an embodiment of the refractive component provided in this application;

[0027] Figure 7A A schematic diagram of the prism provided in this application from one perspective;

[0028] Figure 7B A structural schematic diagram of the prism provided in this application from another perspective;

[0029] Figure 7C A structural schematic diagram of the prism provided in this application from another perspective;

[0030] Figure 7D This is a structural schematic diagram of the prism provided in this application from another perspective. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0032] In the embodiments of this application, the terms "first" and "second" are used to distinguish between identical or nearly identical items with essentially the same function and effect. For example, the first light-incident end and the second light-incident end are merely used to distinguish different light-incident parts, without limiting their order. Furthermore, the specific structures of the first and second light-incident ends can differ; the first light-incident end may be the light-incident end of an optical transmission component, and the second light-incident end may be the light-incident end of a refraction component. The functions of the first and second light-incident ends can be the same or similar; for example, both can be used to receive laser light. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that the terms "first" and "second" are not necessarily different.

[0033] It should be noted that, in the embodiments of this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0034] In this application embodiment, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, a--c, bc, or abc, where a, b, and c can be single or multiple.

[0035] In the embodiments of this application, the technical solutions of the various embodiments can be combined with each other, based on the fact that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0036] This application provides a laser processing device that can be used in a laser cleaning head, a laser marking machine, or a laser flying marking machine. For example... Figure 1 and Figure 2 As shown, the laser processing device includes a housing 10, a light transmission component 20, a refraction component 30, and a galvanometer component 40.

[0037] The housing 10 has an internal cavity, and one end of the housing 10 has a light inlet 11 and the other end has a light outlet 12. The light inlet 11 is used to receive the first laser emitted by the laser.

[0038] like Figures 3-4 As shown, the optical transmission component 20 is disposed within the receiving cavity. The optical transmission component 20 is used to perform optical processing on the first laser and then output the second laser. The optical transmission component 20 includes a first light input end 21 and a first light output end 22. The first light input end 21 is disposed opposite to the light input port 11 and is used to receive the first laser; the first light output end 22 is used to output the second laser.

[0039] A refractive assembly 30 is disposed within the receiving cavity. The refractive assembly 30 is used to refract the second laser beam before outputting a third laser beam. The refractive assembly 30 includes a second light-incident end 31 and a second light-outcident end 32. The second light-incident end 31 is positioned opposite to the first light-outcident end 22. Figures 5A to 5C As shown, the second input end 31 is used to receive the second laser beam; the second output end 32 is used to output the third laser beam; the angle α between the direction F1 of the second laser beam and the direction F2 of the third laser beam is greater than 90 degrees and less than or equal to 180 degrees. Since the length of the laser processing device is related to the optical path length of the laser beam in the direction of laser injection at the input port 11 (e.g., it must be greater than this optical path length), and in this embodiment, the laser direction changes by more than 90 degrees through the refraction component 30, thereby effectively shortening the optical path length of the laser beam in the direction of laser injection at the input port 11, and thus shortening the length of the laser processing device, which in turn helps to reduce the size of the laser processing device and make the internal structure of the laser processing device more compact.

[0040] In one implementation, such as Figure 5B As shown, the angle between the direction F1 of the second laser and the direction F2 of the third laser is close to 180 degrees, for example, between 180 degrees - angle threshold and 180 degrees + angle threshold, with a deviation within positive 10 degrees or negative 10 degrees.

[0041] In one implementation, such as Figure 5C As shown, the direction of the second laser is opposite to that of the third laser, which can also be understood as the direction of the second laser being 180 degrees different from that of the third laser. The directions of the second lasers are parallel to each other.

[0042] Since the length of the laser processing device is related to the optical path length of the laser injection direction at the light inlet 11 (e.g., it must be greater than the optical path length), and in this embodiment the laser direction changes in the opposite direction (180 degrees) or nearly opposite direction (nearly 180 degrees) through the refraction component 30, the optical path length of the laser injection direction at the light inlet 11 is greatly shortened, thereby shortening the length of the laser processing device, which in turn helps to reduce the size of the laser processing device and make the internal structure of the laser processing device more compact.

[0043] A galvanometer assembly 40 is disposed within the receiving cavity, and the galvanometer assembly 40 is used to convert the third laser into a scanning laser; the scanning laser is emitted through the output port 12. For example, Figure 3 and Figure 4 As shown, the galvanometer assembly 40 includes a first galvanometer 41, a second galvanometer 42, a first motor 43 for driving the first galvanometer 41 to rotate, and a second motor 44 for driving the second galvanometer 42 to rotate.

[0044] For example, the first galvanometer 41 can also be called the X-galvanometer, which is used to control the deflection of the laser beam in the horizontal direction (X-axis). The first galvanometer 41 is driven to rotate by the first motor 43 to adjust the lateral scanning range of the laser.

[0045] For example, the second galvanometer 42 can also be a Y-galvanometer, used to control the deflection of the laser beam in the vertical direction (Y-axis). The second galvanometer 42 is driven to rotate by the second motor 44 to adjust the longitudinal scanning range of the laser.

[0046] By working together with the first galvanometer 41 and the second galvanometer 42, the laser focal point can be moved arbitrarily on the two-dimensional plane, forming a two-dimensional deflection control, which in turn can guide the laser beam to perform high-speed and flexible scanning cleaning or scanning marking on the workpiece surface (i.e., two-dimensional).

[0047] In one embodiment, such as Figure 4 As shown, the laser processing device may also include a field lens 50, and the aforementioned light outlet 12 may be disposed on the field lens 50.

[0048] In one embodiment, the laser processing apparatus may further include a laser for emitting the first laser beam described above. In another embodiment, the laser may be independent of the laser processing apparatus, i.e., the two are set up independently of each other.

[0049] In one embodiment, the refractive component 30 can reflect the received laser beam sequentially through two reflecting surfaces. For example... Figure 6 As shown in Figure 7, the refracting component 30, by way of example, includes a first reflecting surface 33 and a second reflecting surface 34. The first reflecting surface 33 is disposed opposite to the second light-incident end 31 and the second reflecting surface 34. The first reflecting surface 33 is used to receive the second laser and reflect the second laser to the second reflecting surface 34. The second reflecting surface 34 is disposed opposite to the second light-outcrystal end 32 and is used to reflect the received laser to the second light-outcrystal end 32, so that the second light-outcrystal end 32 outputs the third laser. By setting two reflecting surfaces, the direction of the second laser can be made opposite to or nearly opposite to the direction of the third laser, thereby shortening the optical path length in the laser incident direction as much as possible. This allows for the shortening of the optical path with the fewest reflecting surfaces, which not only helps to reduce the size of the laser processing equipment but also minimizes costs.

[0050] In one embodiment, the first reflecting surface 33 and the second reflecting surface 34 are arranged perpendicularly to each other. The angle between the first reflecting surface 33 and the direction of the second laser is 45 degrees. The angle between the second reflecting surface 34 and the direction of the third laser is also 45 degrees. This structural design allows for a basically symmetrical optical path, resulting in an angle of 180 degrees between the directions of the second and third lasers. This is more conducive to shortening the optical path length in the laser injection direction within the laser processing equipment, and thus further reduces the size of the laser processing equipment.

[0051] In one embodiment, such as Figure 6 As shown, the refractive assembly 30 includes two reflectors (301, 302). One reflector 301 is provided with a first reflective surface 33 as described in any of the above embodiments or implementations, and the other reflector 302 is provided with a second reflective surface 34 as described in any of the above embodiments or implementations.

[0052] In another embodiment, such as Figures 7A to 7D As shown, the refractive component 30 is a prism, on which a first reflecting surface 33 and a second reflecting surface 34 as described in any of the above embodiments or implementations are provided. By providing a prism that simultaneously includes a first reflecting surface 33 and a second reflecting surface 34, the structure becomes more compact, which is more conducive to reducing the size of the laser processing equipment.

[0053] In one embodiment, such as Figure 7A As shown, the prism includes a first side surface 33 and a second side surface 34 disposed opposite to each other. The first side surface 33 is a first reflecting surface 33, and the second side surface 34 is a second reflecting surface 34. Exemplarily, the first side surface 33 and the second side surface 34 have the same area. Exemplarily, the first side surface 33 and the second side surface 34 also have the same shape.

[0054] Based on any of the above embodiments or implementation methods, such as Figure 7A and Figure 7B As shown, the prism also includes a third side surface 35 and a fourth side surface 36 arranged opposite to each other. The third side surface 35 connects the first side surface 33 and the second side surface 34, and the fourth side surface 36 connects the first side surface 33 and the second side surface 34. The second light-incident end 31 and the second light-exit end 32 are both disposed on the fourth side surface 36. By disposing of the second light-incident end 31 and the second light-exit end 32 on the fourth side surface 36, separate designs are not required, thus simplifying the manufacturing process and making the prism structure more compact.

[0055] In one implementation, such as Figures 7A to 7D As shown, the third side 35 and the fourth side 36 are arranged in parallel, which also makes the structure of the prism more compact, which helps to save internal space of the laser processing equipment and reduce the size of the laser processing equipment.

[0056] In one implementation, such as Figure 7C and Figure 7D As shown, the prism also includes a fifth side surface 37 and a sixth side surface 38 arranged opposite to each other. The fifth side surface 37 is connected to the first side surface 33, the second side surface 34, the third side surface 35, and the fourth side surface 36, and the sixth side surface 38 is connected to the first side surface 33, the second side surface 34, the third side surface 35, and the fourth side surface 36. At least one of the fifth side surface 37 and the sixth side surface 38 is an isosceles trapezoid. In one embodiment, the prism is shaped as a trapezoidal frustum, a quadrangular frustum, or a trapezoidal solid. The prism has a generally symmetrical structural design, which helps to simplify the manufacturing process and makes the prism structure more compact, thus reducing the size of the laser processing equipment.

[0057] In another embodiment, the refractive component 30 can also reflect the received laser beam sequentially through at least three reflective surfaces.

[0058] In another embodiment, the refractive component 30 can also reflect the received laser light through a reflective surface. By providing a reflective surface, the volume of the refractive component 30 can be minimized, thereby reducing the space occupied by the refractive component 30 inside the laser processing equipment, which is beneficial for reducing the size of the laser processing equipment.

[0059] This application also provides a laser cleaning head, which includes the laser processing equipment described in any of the above embodiments or implementations. Since this laser cleaning head includes all the technical features of the laser processing equipment described in any of the above embodiments or implementations, it also possesses all the beneficial effects of the laser processing equipment described in any of the above embodiments or implementations.

[0060] This application also provides a laser cleaning machine, which includes the laser processing equipment described in any of the above embodiments or implementations, or the laser cleaning machine includes the laser cleaning head described in the above embodiments. Since this laser cleaning machine includes all the technical features of the laser processing equipment described in any of the above embodiments or implementations, it also possesses all the beneficial effects of the laser processing equipment described in any of the above embodiments or implementations.

[0061] This application also provides a laser marking machine, which includes the laser processing equipment described in any of the above embodiments or implementations. This laser marking machine can be a conventional laser marking machine or a laser flying marking machine. Since this laser marking machine includes all the technical features of the laser processing equipment described in any of the above embodiments or implementations, it also possesses all the beneficial effects of the laser processing equipment described in any of the above embodiments or implementations.

[0062] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this application. It should be understood that the above are only specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this application should be included within the scope of protection of this application.

Claims

1. A laser processing device, characterized in that, The laser processing equipment includes: The housing has an internal cavity, one end of which has a light inlet and the other end has a light outlet. The light inlet is used to receive the first laser emitted by the laser. An optical transmission component is disposed within the receiving cavity. The optical transmission component is used to perform optical processing on the first laser and then output a second laser. The optical transmission component includes a first light-inlet end and a first light-outlet end. The first light-inlet end is disposed opposite to the light-inlet port and is used to receive the first laser. The first light-outlet end is used to output the second laser. A refractive assembly is disposed within the receiving cavity. The refractive assembly is used to refract the second laser beam and output a third laser beam. The refractive assembly includes a second light-incident end and a second light-outcident end. The second light-incident end is disposed opposite to the first light-outcident end. The second light-incident end is used to receive the second laser beam. The second light-outcident end is used to output the third laser beam. The angle between the direction of the second laser beam and the direction of the third laser beam is greater than 90 degrees and less than or equal to 180 degrees. A galvanometer assembly is disposed within the receiving cavity, and the galvanometer assembly is used to convert the third laser into a scanning laser; the scanning laser is emitted through the light outlet.

2. The laser processing equipment as described in claim 1, characterized in that, The refractive component includes a first reflective surface and a second reflective surface; The first reflective surface is disposed opposite to the second light-incident end and the second reflective surface. The first reflective surface is used to receive the second laser and reflect the second laser to the second reflective surface. The second reflective surface is disposed opposite to the second light-emitting end, and the second reflective surface is used to reflect the received laser to the second light-emitting end so that the second light-emitting end outputs the third laser.

3. The laser processing equipment as described in claim 2, characterized in that, The first reflective surface and the second reflective surface are arranged perpendicular to each other.

4. The laser processing equipment as described in claim 2, characterized in that, The angle between the first reflective surface and the direction of the second laser is 45 degrees.

5. The laser processing equipment as described in claim 2, characterized in that, The angle between the second reflective surface and the direction of the third laser is 45 degrees.

6. The laser processing apparatus according to any one of claims 2 to 5, characterized in that, The refractive component is a prism.

7. The laser processing equipment as described in claim 6, characterized in that, The prism includes a first side and a second side disposed opposite to each other, the first side being the first reflecting surface and the second side being the second reflecting surface.

8. The laser processing equipment as described in claim 7, characterized in that, The prism further includes a third side and a fourth side disposed opposite to each other, the third side being connected between the first side and the second side, and the fourth side being connected between the first side and the second side; Both the second light-incident end and the second light-outcident end are disposed on the fourth side surface.

9. The laser processing equipment as described in claim 8, characterized in that, The third side is arranged parallel to the fourth side.

10. The laser processing apparatus as described in claim 8, characterized in that, The prism further includes a fifth side and a sixth side disposed opposite to each other. The fifth side is connected to the first side, the second side, the third side, and the fourth side, and the sixth side is connected to the first side, the second side, the third side, and the fourth side. At least one of the fifth and sixth sides is an isosceles trapezoid.

11. The laser processing equipment as described in claim 1, characterized in that, The refractive component includes a third reflective surface; The third reflective surface is disposed opposite to the second light-incident end and the second light-outceasing end; the third reflective surface is used to receive the second laser and reflect the second laser to the second light-outceasing end, so that the second light-outceasing end outputs the third laser.

12. The laser processing equipment as described in claim 1, characterized in that, The refractive component includes at least three reflective surfaces; There is one reflective surface disposed opposite to the second light-incident end, and there is another reflective surface disposed opposite to the second light-exiting end; the second laser entering through the second light-incident end is reflected sequentially by each of the reflective surfaces, and then the third laser is output from the second light-exiting end.

13. The laser processing apparatus according to any one of claims 1 to 5, 11, and 12, characterized in that, The direction of the second laser is opposite to the direction of the third laser.

14. A laser cleaning head, characterized in that, The laser cleaning head includes the laser processing equipment as described in any one of claims 1 to 13.

15. A laser cleaning machine, characterized in that, The laser cleaning machine includes the laser cleaning head as described in claim 14.

16. A laser marking machine, characterized in that, The laser marking machine includes the laser processing equipment as described in any one of claims 1 to 13.

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