Laser cleaning head and laser cleaning device

Abstract

This application discloses a laser cleaning head and a laser cleaning device. The laser cleaning head is used to clean the inner surface of a pipe and includes a beam splitting assembly and a rotating assembly. The beam splitting assembly includes a mounting base and a beam splitting structure. The mounting base includes a cavity, and the beam splitting structure is disposed within the cavity. The beam splitting structure receives the laser and splits it into two cleaning laser beams. The two cleaning laser beams are used to irradiate the two circumferential surfaces of the protrusions to be cleaned on the inner surface of the pipe, respectively. The rotating assembly is connected to the beam splitting assembly to drive the beam splitting assembly to rotate around a rotation axis. The focal points of the two cleaning laser beams are located in the same plane perpendicular to the rotation axis, and the focal points of the two cleaning laser beams are located on the inner surface of the pipe. By ensuring that the focal points of the two cleaning laser beams are located in the same plane perpendicular to the rotation axis and on the inner surface of the pipe, the cleaning effect of the two cleaning laser beams on the inner surface of the pipe and the protrusions to be cleaned can be improved.

Description

Technical Field

[0001] This application relates to the field of laser technology, and in particular to a laser cleaning head and a laser cleaning device. Background Technology

[0002] A gun barrel is a conduit used to fire projectiles. Its inner surface has rifling, which helps the projectile maintain its intended trajectory after leaving the barrel, improving accuracy. After firing, a layer of highly adhesive gunpowder residue remains inside the barrel. For projectiles using nylon cartridge bands or nylon gas-sealing rings, nylon residue also remains, making it even more difficult to remove than gunpowder residue. Carbon deposits, primarily composed of copper, lead, chlorides, and sulfides, are extremely adhesive and difficult to remove using conventional mechanical methods. Nylon residue is difficult to dissolve and adheres even stronger than carbon deposits, making it ineffective for cleaning. While ether cleaning can remove nylon residue, the process is time-consuming and unsuitable, and it doesn't address the flammability and explosiveness issues.

[0003] Therefore, there is an urgent need for a device that can quickly clean the inner surface of the gun barrel. Summary of the Invention

[0004] This application provides a laser cleaning head and a laser cleaning device, which aims to solve the problem of difficult cleaning of residues on the surface of existing pipelines.

[0005] This application provides a laser cleaning head for cleaning the inner surface of a pipe, including:

[0006] The beam splitting assembly includes a mounting base and a beam splitting structure. The mounting base includes a cavity, and the beam splitting structure is disposed in the cavity. The beam splitting structure is used to receive laser light and split the laser light into two cleaning laser beams. The two cleaning laser beams are used to irradiate the two sides of the inner surface of the pipe along the circumference of the pipe to be cleaned.

[0007] A rotating component is connected to the beam splitting component to drive the beam splitting component to rotate around a rotation axis. The focal points of the two cleaning laser beams are located on the same plane perpendicular to the rotation axis, and the focal points of the two cleaning laser beams are located on the inner surface of the pipe.

[0008] In some embodiments, the beam splitting structure includes a beam splitter and a reflector. The beam splitter receives the laser and splits it into two cleaning laser beams directed toward the reflector. The reflector receives the two cleaning laser beams and reflects them onto the inner surface of the pipe, respectively.

[0009] In some embodiments, the reflecting assembly includes a first reflector, a second reflector, and a third reflector; the beam splitter includes a semi-transparent, semi-reflective mirror, which is used to reflect a portion of the laser to form the cleaning laser directed toward the first reflector, and the first reflector is used to reflect the cleaning laser onto the inner surface of the pipe; the semi-transparent, semi-reflective mirror is used to transmit a portion of the laser to form the cleaning laser directed toward the second reflector, and the second reflector is used to reflect the cleaning laser to the third reflector, and the third reflector is used to reflect the cleaning laser onto the inner surface of the pipe.

[0010] In some embodiments, the focal points of the two cleaning lasers are equidistant from the beam splitter.

[0011] In some embodiments, the rotating assembly includes a drive motor, the drive motor and the beam splitting assembly are sequentially distributed along the transmission direction of the laser, the transmission direction of the laser is consistent with the extension direction of the rotation axis, the drive motor includes a light-transmitting hole for the laser to pass through, and the mounting base includes a light inlet communicating with the cavity and the light-transmitting hole, the light inlet being used for the laser to enter the cavity.

[0012] In some embodiments, the laser cleaning head further includes a protective base, the protective base including a receiving cavity, the beam splitting component and the rotating component respectively installed in the receiving cavity, and the protective base having an output port on one side along the laser transmission direction that communicates with the optical path of the receiving cavity, the output port being used for the two cleaning laser beams to be emitted.

[0013] In some embodiments, the protective base is further provided with an air blowing port communicating with the air supply component on one side along the laser transmission direction; the air blowing port extends in a ring shape along the circumference of the light outlet.

[0014] In some embodiments, the protective seat includes an air blowing channel extending along the rotation axis, the air blowing channel being located on the side of the receiving cavity opposite to the rotation axis, one end of the air blowing channel communicating with the air blowing port, and the other end of the air blowing channel being used to communicate with the air supply component.

[0015] In some embodiments, the laser cleaning head further includes a positioning component, which includes a positioning frame and a positioning wheel set. The positioning frame is connected to the rotating component, and the positioning wheel set includes at least three wheel sets distributed circumferentially along the rotation axis. Each wheel set includes at least two positioning wheels distributed circumferentially along the extension direction of the rotation axis. The positioning frame is connected to each positioning wheel and is used to drive the positioning wheel closer to or away from the rotation axis.

[0016] This application embodiment also provides a laser cleaning apparatus, the laser cleaning apparatus comprising:

[0017] A laser, the laser being used to emit laser light;

[0018] A laser cleaning head is used to clean the inner surface of a pipe. The laser cleaning head is as described above, comprising a beam splitting assembly and a rotating assembly. The beam splitting assembly includes a mounting base and a beam splitting structure connected to the output optical path of the laser. The mounting base includes a cavity, and the beam splitting structure is disposed within the cavity. The beam splitting structure receives the laser and splits it into two cleaning laser beams. The two cleaning laser beams are used to irradiate the two circumferential surfaces of the protrusions to be cleaned on the inner surface of the pipe. The rotating assembly is connected to the beam splitting assembly to drive the beam splitting assembly to rotate around a rotation axis. The focal points of the two cleaning laser beams are located in the same plane perpendicular to the rotation axis, and the focal points of the two cleaning laser beams are located on the inner surface of the pipe.

[0019] A movable component is connected to the rotating component of the laser cleaning head to drive the laser cleaning head to move along the rotation axis.

[0020] The laser cleaning head and laser cleaning device provided in this application embodiment split the laser into two beams through a beam splitting structure, which are used to irradiate the two sides of the protrusion to be cleaned along the circumference of the pipe. The rotating component drives the beam splitting component to rotate around the rotation axis, so that one of the two cleaning laser beams can irradiate one side of the protrusion to be cleaned, while the other cleaning laser beam can irradiate the other side of the protrusion to be cleaned.

[0021] Based on this, by focusing the two cleaning laser beams on the same plane perpendicular to the rotation axis and on the inner surface of the pipe, when the rotating component drives the beam splitting component to rotate around the rotation axis, the focus of the two cleaning laser beams on the inner surface of the pipe can be concentrated, and the continuity of the movement trajectory of the two cleaning laser beams on the inner surface of the pipe can be guaranteed, thereby improving the cleaning effect of the two cleaning laser beams on the inner surface of the pipe and the protrusions to be cleaned. Attached Figure Description

[0022] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0023] Figure 1 A schematic diagram of the structure of one embodiment of the laser cleaning head provided in this application;

[0024] Figure 2 for Figure 1 A cross-sectional view along the AA direction, in which the beam-splitting component is not shown in cross-section;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 A schematic diagram of the structure of one embodiment of the beam-splitting component provided in this application;

[0027] Figure 5 for Figure 4 A cross-sectional view along the BB direction;

[0028] Figure 6 A schematic diagram of one embodiment of the spectral splitting structure provided in this application;

[0029] Figure 7 This is a schematic diagram of the structure of two cleaning laser beams provided in an embodiment of this application.

[0030] Laser cleaning head 100; protective base 110; receiving cavity 1101; light outlet 1102; fixing base 111; inner fixing part 1111; outer fixing part 1112; through hole 1113; connecting channel 1114; protective part 112; inner cylinder 1121; first cylinder section 1122; outer cylinder 1123; second cylinder section 1124; air blowing channel 1125; inclined section 1126; air blowing port 1127; connector 113; beam splitting assembly 120; mounting base 121; cavity 1211; light inlet 1212; light outlet 1213; protective lens 1214; beam splitting junction Component 122; beam splitter 1221; reflector 1222; first reflector 1223; second reflector 1224; third reflector 1225; positioning assembly 130; positioning frame 131; fixed frame 1311; sliding frame 1312; connecting rod assembly 1313; adjusting rod 1314; positioning wheel group 132; wheel group 1321; positioning wheel 1322; collimation assembly 140; laser 200; cleaning laser 210; first segment 211; second segment 212; third segment 213; fourth segment 214; fifth segment 215; focal point 216; rotation axis X. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0033] This application provides a laser cleaning head and a laser cleaning device. These will be described in detail below.

[0034] First, this application provides a laser cleaning head. The laser cleaning head is primarily used for cleaning the inner surface of pipes. Specifically, the laser cleaning head is mainly used for cleaning the inner surface of pipes, as well as protruding surfaces on the inner surface of pipes that need to be cleaned.

[0035] Figure 1 This is a schematic diagram of the structure of one embodiment of the laser cleaning head provided in this application. Figure 2 for Figure 1 A cross-sectional view along the AA direction, where the beam-splitting component is not shown in the cross-section. (See image below.) Figure 1 and Figure 2 As shown, the laser cleaning head 100 includes a beam splitting component 120 and a rotating component (not shown in the figure). The beam splitting component 120 is used to communicate with the optical path of the laser emitting component so that the beam splitting component 120 can receive the laser 200 emitted by the laser emitting component and split the laser 200 into two cleaning laser beams 210. When the laser cleaning head 100 is placed in a pipe (not shown in the figure), the two cleaning laser beams 210 emitted from the laser cleaning head 100 irradiate the inner surface of the pipe to clean the inner surface of the pipe and the protruding surfaces to be cleaned protruding from the inner surface of the pipe.

[0036] It should be noted that the pipe can be a gun barrel or other pipe structure that requires cleaning of its inner surface. The structure of the protrusions to be cleaned on the inner surface of the pipe can be determined according to the type of pipe. For example, when the pipe is a gun barrel, the protrusions to be cleaned on the inner surface of the pipe are rifling extending spirally along the length of the pipe.

[0037] The rotating component is connected to the beam splitting component 120 to drive the beam splitting component 120 to rotate around the rotation axis X, so that the two cleaning lasers 210 irradiating the inner surface of the pipe also rotate synchronously around the rotation axis X. The light spots formed by the two cleaning lasers 210 on the inner surface of the pipe rotate along the circumference of the pipe, so as to clean various parts of the inner surface of the pipe, especially the protruding surfaces to be cleaned on the inner surface of the pipe.

[0038] like Figure 4 and Figure 5 As shown, the beam splitting assembly 120 includes a mounting base 121 and a beam splitting structure 122. The mounting base 121 includes a cavity 1211, and the beam splitting structure 122 is disposed within the cavity 1211 of the mounting base 121. The beam splitting structure 122 is used to receive the laser 200 and split the laser 200 into two cleaning laser beams 210. In some embodiments, the two cleaning laser beams 210 are used to irradiate the two circumferential surfaces of the protrusion to be cleaned on the inner surface of the pipe, respectively. During the rotation of the beam splitting assembly 120 around the rotation axis X, one of the two cleaning laser beams 210 can irradiate one side surface of the protrusion to be cleaned, while the other cleaning laser beam 210 can irradiate the other side surface of the protrusion to be cleaned.

[0039] Among them, such as Figure 7 As shown, the focal points 216 of the two cleaning laser beams 210 are located on the same plane perpendicular to the rotation axis X, and the focal points 216 of the two cleaning laser beams 210 are located on the inner surface of the pipe. Therefore, when the rotating component drives the beam splitting component 120 to rotate around the rotation axis X, the focal points 216 of the two cleaning laser beams 210 are located on the inner surface of the pipe, which can concentrate the energy of the light spots formed by the two cleaning laser beams 210 on the inner surface of the pipe, and can ensure the continuity of the movement trajectory of the light spots formed by the two cleaning laser beams 210 on the inner surface of the pipe, thereby improving the cleaning effect of the two cleaning laser beams 210 on the inner surface of the pipe and the protrusions to be cleaned.

[0040] In some embodiments, the beam splitting structure 122 may include a beam splitter 1221 and a reflector 1222, which are respectively disposed within the cavity 1211 of the mounting base 121. The beam splitter 1221 receives the laser 200 and splits it into two cleaning laser beams 210 that are directed toward the reflector 1222. The reflector 1222 receives the two cleaning laser beams 210 and reflects them onto the inner surface of the pipe. Thus, by adjusting the position and angle of the beam splitter 1221 and the reflector 1222, the path and angle of the two cleaning laser beams 210 can be adjusted, so that the two cleaning laser beams 210 are used to irradiate the two circumferential surfaces of the protrusion to be cleaned on the inner surface of the pipe in a one-to-one correspondence. The focal points 216 of the two cleaning laser beams 210 are located in the same plane perpendicular to the rotation axis X, and the focal points 216 of the two cleaning laser beams 210 are located on the inner surface of the pipe.

[0041] Among them, such as Figure 5 and Figure 6 As shown, the beam splitter 1221 can include a semi-transparent, semi-reflective mirror. This mirror reflects a portion of the laser 200 to form a cleaning laser beam 210, and also transmits a portion of the laser 200 to form another cleaning laser beam 210. The reflecting assembly 1222 can include a first reflecting mirror 1223, a second reflecting mirror 1224, and a third reflecting mirror 1225. The semi-transparent, semi-reflective mirror reflects a portion of the laser 200 to form a cleaning laser 210 directed towards the first reflecting mirror 1223, which reflects the cleaning laser 210 onto the inner surface of the pipe. The semi-transparent, semi-reflective mirror transmits a portion of the laser 200 to form a cleaning laser 210 directed towards the second reflecting mirror 1224, which reflects the cleaning laser 210 to the third reflecting mirror 1225, which reflects the cleaning laser 210 onto the inner surface of the pipe. By adjusting the position and angle of the first reflector 1223, the second reflector 1224, and the third reflector 1225, the angle and position of the two cleaning beams directed toward the inner surface of the pipe can be adjusted.

[0042] In some embodiments, the distances from the focal points 216 of the two cleaning lasers 210 to the beam splitting structure 122 can be equal, so that the focal points 216 of the two cleaning lasers 210 are located in the same plane perpendicular to the rotation axis X, and the focal points 216 of the two cleaning lasers 210 are located on the inner surface of the pipe.

[0043] Specifically, the focal points 216 of the two cleaning laser beams 210 are equidistant from the semi-transparent, semi-reflective mirror. For example... Figure 7As shown, the cleaning laser 210 reflected by the first reflector 1223 includes a first segment 211 from the semi-transparent mirror to the first reflector 1223, and a second segment 212 from the first reflector 1223 to the inner surface of the pipe. The cleaning laser 210 reflected by the second reflector 1224 and the third reflector 1225 includes a third segment 213 from the semi-transparent mirror to the second reflector 1224, a fourth segment 214 from the second reflector 1224 to the third reflector 1225, and a fifth segment 215 from the third reflector 1225 to the inner surface of the pipe. The length of the first segment 211 is a, the length of the second segment 212 is b, the length of the third segment 213 is c, the length of the fourth segment 214 is d, and the length of the fifth segment 215 is e, where a + b = c + d + e.

[0044] In some embodiments, the rotating assembly includes a drive motor connected to the beam splitting assembly 120 to drive the beam splitting assembly 120 to rotate around the rotation axis X. The drive motor and the beam splitting assembly 120 are sequentially distributed along the transmission direction of the laser 200, which is aligned with the extension direction of the rotation axis X. The drive motor includes a light-transmitting hole for the laser 200 to pass through. The mounting base 121 includes a light inlet 1212 communicating with the cavity 1211 and the light-transmitting hole, allowing the laser 200 to enter the cavity 1211. Thus, when the drive motor drives the beam splitting assembly 120 to rotate around the rotation axis X, the laser 200 can pass through the light-transmitting hole of the drive motor and the light inlet 1212 of the mounting base 121, and irradiate the beam splitting structure 122 within the cavity 1211 of the mounting base 121, splitting the laser 200 into two cleaning laser beams 210 by the beam splitting structure 122.

[0045] The mounting base 121 may further include two light-emitting holes 1213 communicating with the cavity 1211. These two light-emitting holes 1213 are located in the optical paths of the two cleaning lasers 210, so that the cleaning lasers 210 inside the cavity 1211 can irradiate the outside of the mounting base 121 through the light-emitting holes 1213. A protective mirror 1214 may also be provided in the light-emitting holes 1213 to ensure a high level of cleanliness inside the cavity 1211.

[0046] In some embodiments, such as Figure 1 , Figure 2 and Figure 3As shown, the laser cleaning head 100 may further include a protective base 110, which includes a receiving cavity 1101. The beam splitting assembly 120 and the rotating assembly are respectively installed in the receiving cavity 1101 of the protective base 110, thereby protecting the beam splitting assembly 120 and the rotating assembly through the protective base 110. A light outlet 1102, communicating with the optical path of the receiving cavity 1101, is provided on one side of the protective base 110 along the transmission direction of the laser 200. This light outlet 1102 is used to emit two cleaning laser beams 210, so that the two cleaning laser beams 210 emitted from the beam splitting assembly 120 can pass through the protective base 110 from the light outlet 1102 and irradiate the inner surface of the pipe, thereby cleaning the inner surface of the pipe and the surface of the protrusion to be cleaned.

[0047] It should be noted that the beam splitting component 120 and part of the rotating component can be located in the receiving cavity 1101 of the protective seat 110, or the beam splitting component 120 and the rotating component can be located entirely in the receiving cavity 1101 of the protective seat 110, as long as the two cleaning laser beams 210 can pass through the light outlet 1102 and irradiate the inner surface of the pipe.

[0048] Specifically, the protective base 110 includes a fixed base 111 and a protective part 112 connected to the fixed base 111. The fixed base 111 and the rotating assembly are connected sequentially along the transmission direction of the laser 200 so that the protective base 110 is connected to the rotating assembly. The rotating assembly is a drive motor. The fixed base 111 is fixedly connected to the stator of the drive motor, and the rotor of the drive motor is connected to the mounting base 121 of the beam splitting assembly 120.

[0049] The mounting base 111 has a through hole 1113 for the laser 200 to pass through, so as to avoid the mounting base 111 blocking the laser 200. The protective part 112 extends in a ring structure along the circumference of the beam splitting assembly 120, and one end of the protective part 112 opposite to the laser 200 transmission direction is connected to the mounting base 111, so that the protective part 112 and the mounting base 111 enclose a receiving cavity 1101, and one end of the protective part 112 along the laser 200 transmission direction forms a light outlet 1102 communicating with the receiving cavity 1101.

[0050] In some embodiments, such as Figures 1 to 3As shown, an air outlet 1127 communicating with an air supply component (not shown) is also provided on one side of the protective base 110 along the transmission direction of the laser 200. When the two cleaning lasers 210 emitted by the laser cleaning head 100 clean the inside of the pipe, air can be supplied to the air outlet 1127 through the air supply component, so that the gas is blown out from the air outlet 1127 to protect the receiving cavity 1101 of the protective base 110, preventing dust or impurities in the pipe from entering the receiving cavity 1101 from the light outlet 1102 of the protective base 110. At the same time, the gas blown out through the air outlet 1127 can also blow off the dust or impurities attached to the inner surface of the pipe and the surface of the protrusion to be cleaned, so as to further improve the cleaning effect of the cleaning laser 210 on the inner surface of the pipe and the surface of the protrusion to be cleaned. The air outlet 1127 of the protective base 110 can be extended in a ring shape along the circumference of the light outlet 1102, so that gas can be blown out from the four edges of the light outlet 1102, thereby further improving the protection effect against dust or impurities.

[0051] Specifically, the protective base 110 includes an air blowing channel 1125 extending along the rotation axis X. The air blowing channel 1125 is located on the side of the receiving cavity 1101 opposite to the rotation axis X. One end of the air blowing channel 1125 communicates with the air blowing port 1127, and the other end of the air blowing channel 1125 is used to communicate with the air supply component. This allows the air supply component to communicate with the air blowing port 1127, and the air supply component can supply air to the air outlet through the air blowing channel 1125.

[0052] The protective part 112 may include an inner cylinder 1121 and an outer cylinder 1123 extending along the rotation axis X. The outer cylinder 1123 is fitted over the inner cylinder 1121, and an annular air blowing channel 1125 is formed between the outer circumferential surface of the inner cylinder 1121 and the inner circumferential surface of the outer cylinder 1123. An annular air blowing port 1127 is formed between one edge of the inner circumferential surface of the outer cylinder 1123 along the transmission direction of the laser 200 and the outer circumferential surface of the inner cylinder 1121.

[0053] The fixing base 111 includes an inner fixing part 1111 and an outer fixing part 1112. The inner fixing part 1111 is fixedly connected to one end of the inner cylinder 1121 opposite to the laser 200 transmission direction. The outer fixing part 1112 is fixedly connected to one end of the outer cylinder 1123 opposite to the laser 200 transmission direction. A connecting channel 1114 is formed between the outer fixing part 1112 and the inner fixing part 1111, communicating with one end of the air blowing channel 1125 opposite to the laser 200 transmission direction. The air blowing channel 1125 is connected to the air supply component through the connecting channel 1114. The connecting channel 1114 can extend circumferentially along the rotation axis X.

[0054] Continue to refer to Figure 2 and Figure 3A connector 113 is also provided on the protective base 110. One end of the connector 113 is connected through the air blowing channel 1125, and the other end of the connector 113 is used to connect with the air supply component. Specifically, the connector 113 is located on the side of the fixed base 111 opposite to the transmission direction of the laser 200. One end of the connector 113 is fixedly connected to the outer fixing part 1112 of the fixed base 111 and is connected to the connecting channel 1114.

[0055] In some embodiments, the air outlet 1127 of the protective base 110 can be tilted toward the rotation axis X in the direction of laser 200 transmission, so that the gas blown out from the air outlet 1127 flows in the direction of laser 200 transmission and tilts at a certain angle toward the rotation axis X, so as to further improve the protection effect against dust or impurities.

[0056] The blowing channel 1125 may include an inclined section 1126 extending from the blowing port 1127 in the opposite direction of the laser 200 transmission direction. In the transmission direction of the laser 200, the inclined section 1126 is inclined toward the rotation axis X, so that the airflow blown out from the blowing port 1127 after passing through the inclined section 1126 of the blowing channel 1125 flows in the transmission direction of the laser 200 and is inclined at a certain angle toward the rotation axis X.

[0057] Specifically, the inner cylinder 1121 may include a first cylinder section 1122 extending in the opposite direction of the laser 200 transmission direction via a self-blowing port 1127, and the outer cylinder 1123 may include a second cylinder section 1124 extending in the opposite direction of the laser 200 transmission direction via a self-blowing port 1127. In the laser 200 transmission direction, the diameter of the outer circumferential surface of the first cylinder section 1122 gradually decreases, and the diameter of the inner circumferential surface of the second cylinder section 1124 also gradually decreases, so as to form an inclined section 1126 of the blowing channel 1125 between the outer circumferential surface of the first cylinder section 1122 and the inner circumferential surface of the second cylinder section 1124.

[0058] In some embodiments, such as Figure 1 and Figure 2 As shown, the laser cleaning head 100 may further include a positioning component 130, which is connected to the rotating component. When the inside of the pipe is cleaned by the laser cleaning head 100, the positioning component 130 is used to abut against the inner surface of the pipe to position the rotating component and the beam splitting component 120 of the laser cleaning head 100 within the pipe, so that the focal point 216 of the two cleaning laser beams 210 can be accurately positioned on the inner surface of the pipe.

[0059] The positioning component 130 may include a positioning frame 131 and a positioning wheel set 132. The positioning frame 131 is connected to the rotating component. The positioning wheel set 132 includes at least three wheel sets 1321 arranged circumferentially along the rotation axis X. Each wheel set 1321 includes at least two positioning wheels 1322 arranged circumferentially along the extension direction of the rotation axis X. The positioning frame 131 is connected to each positioning wheel 1322 and is used to drive the positioning wheel 1322 to move closer to or away from the rotation axis X. Thus, when the laser cleaning head 100 is inserted into the pipe, the positioning frame 131 drives the positioning wheels 1322 of each wheel set 1321 to move closer to or away from the rotation axis X, thereby adjusting the distance of each positioning wheel 1322 relative to the rotation axis X, so that each positioning wheel 1322 abuts against the inner surface of the pipe, thereby positioning the position of the rotation axis X in the pipe, and further positioning the rotation component and beam splitting component 120 of the laser cleaning head 100 in the pipe.

[0060] Specifically, the positioning frame 131 may include a fixed frame 1311, a sliding frame 1312, and a plurality of linkage assemblies 1313. The fixed frame 1311 is connected to the rotating assembly, the sliding frame 1312 is slidably connected to the fixed frame 1311 along the extension direction of the rotation axis X, and the plurality of linkage assemblies 1313 are distributed sequentially along the circumference of the rotation axis X. Each linkage assembly 1313 includes two adjusting rods 1314 that are cross-hinged together. One end of one linkage is hinged to the fixed frame 1311, and the other end is hinged to one positioning wheel 1322 of the positioning wheel assembly 132. One end of the other linkage is hinged to the sliding frame 1312, and the other end is hinged to another positioning wheel 1322 of the positioning wheel assembly 132. Thus, by sliding the sliding frame 1312 relative to the fixed frame 1311, the included angle between the two adjusting rods 1314 of the linkage assembly 1313 can be adjusted, thereby adjusting the distance between the two positioning wheels 1322 of the positioning wheel assembly 132 and the rotation axis X.

[0061] Among them, the two adjusting rods 1314 of the connecting rod assembly 1313 are respectively hinged to the fixed frame 1311, the sliding frame 1312 and the positioning wheel 1322 through different hinge axes. The length direction of the hinge axis connected to the two adjusting rods 1314 of the connecting rod assembly 1313 is parallel to each other and perpendicular to the rotation axis X.

[0062] In some embodiments, the laser cleaning head 100 further includes a collimation component 140 connected to the rotating component, the collimation component 140 and the rotating component being sequentially distributed along the transmission direction of the laser 200. The fixed frame 1311 of the positioning frame 131 can be fixedly connected to the collimation component 140, while the sliding frame 1312 of the positioning frame 131 is slidably connected to the collimation component 140. The collimation component 140 is fixedly connected to the protective seat 110, thereby indirectly connecting the collimation component 140 to the rotating component.

[0063] This application also provides a laser cleaning device, which includes a laser cleaning head. The specific structure of the laser cleaning head is as described in the above embodiments. Since this laser cleaning device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0064] The laser cleaning device (not shown in the figure) may include a laser (not shown in the figure), a laser cleaning head, and a moving component (not shown in the figure). The laser is used to emit laser light. The laser cleaning head is the laser cleaning head in any of the above embodiments. The beam splitting structure of the laser cleaning head is connected to the output optical path of the laser to receive the laser light and split it into two cleaning laser beams. The moving component is connected to the rotating component of the laser cleaning head to drive the laser cleaning head to move along the rotation axis, thereby moving the laser cleaning head within the pipe along the length of the pipe. This allows the light spots formed by the two cleaning laser beams on the inner surface of the pipe to move along the circumferential and length directions of the pipe, enabling the light spots to clean the entire inner surface of the pipe.

[0065] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0066] The above provides a detailed description of a laser cleaning head and laser cleaning device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0067] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0068] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0069] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A laser cleaning head for cleaning the inner surface of a pipe, characterized in that, include: The beam splitting assembly includes a mounting base and a beam splitting structure. The mounting base includes a cavity, and the beam splitting structure is disposed in the cavity. The beam splitting structure is used to receive laser light and split the laser light into two cleaning laser beams. The two cleaning laser beams are used to irradiate the two sides of the inner surface of the pipe along the circumference of the pipe to be cleaned. A rotating component, connected to the beam splitting component, drives the beam splitting component to rotate around a rotation axis, so that the two cleaning laser beams irradiating the inner surface of the pipe also rotate synchronously around the rotation axis; the focal points of the two cleaning laser beams are located in the same plane perpendicular to the rotation axis, and the focal points of the two cleaning laser beams are located on the inner surface of the pipe, so that during the process of the rotating component driving the beam splitting component to rotate around the rotation axis, one of the two cleaning laser beams can irradiate one side of the surface of the protrusion to be cleaned, while the other cleaning laser beam can irradiate the other side of the protrusion to be cleaned.

2. The laser cleaning head as described in claim 1, characterized in that, The beam splitting structure includes a beam splitter and a reflector. The beam splitter receives the laser and splits it into two cleaning laser beams that are directed toward the reflector. The reflector receives the two cleaning laser beams and reflects them onto the inner surface of the pipe, respectively.

3. The laser cleaning head as described in claim 2, characterized in that, The reflective assembly includes a first reflector, a second reflector, and a third reflector; the beam splitter includes a semi-transparent semi-reflective mirror, which is used to reflect part of the laser to form the cleaning laser directed toward the first reflector, and the first reflector is used to reflect the cleaning laser to the inner surface of the pipe. The semi-transparent, semi-reflective mirror is used to transmit a portion of the laser to form the cleaning laser directed toward the second reflector. The second reflector is used to reflect the cleaning laser to the third reflector, and the third reflector is used to reflect the cleaning laser to the inner surface of the pipe.

4. The laser cleaning head as described in claim 1, characterized in that, The distances from the focal points of the two cleaning laser beams to the beam splitting structure are equal.

5. The laser cleaning head as described in claim 1, characterized in that, The rotating assembly includes a drive motor, which is sequentially distributed with the beam splitting assembly along the transmission direction of the laser. The transmission direction of the laser is consistent with the extension direction of the rotation axis. The drive motor includes a light-transmitting hole for the laser to pass through. The mounting base includes a light inlet that communicates with the cavity and the light-transmitting hole, and the light inlet is used for the laser to enter the cavity.

6. The laser cleaning head according to any one of claims 1 to 5, characterized in that, The laser cleaning head also includes a protective base, which includes a receiving cavity. The beam splitting component and the rotating component are respectively installed in the receiving cavity. The protective base has an output port on one side along the laser transmission direction that communicates with the optical path of the receiving cavity. The output port is used to emit the two cleaning laser beams.

7. The laser cleaning head as described in claim 6, characterized in that, The protective base also has an air blowing port connected to the air supply component on one side along the laser transmission direction; the air blowing port extends in a ring shape along the circumference of the light outlet.

8. The laser cleaning head as described in claim 7, characterized in that, The protective seat includes an air blowing channel extending along the rotation axis. The air blowing channel is located on the side of the receiving cavity opposite to the rotation axis. One end of the air blowing channel is connected to the air blowing port, and the other end of the air blowing channel is used to connect to the air supply component.

9. The laser cleaning head according to any one of claims 1 to 5, characterized in that, The laser cleaning head further includes a positioning component, which includes a positioning frame and a positioning wheel set. The positioning frame is connected to the rotating component. The positioning wheel set includes at least three wheel sets distributed sequentially along the circumference of the rotation axis. Each wheel set includes at least two positioning wheels distributed sequentially along the extension direction of the rotation axis. The positioning frame is connected to each positioning wheel and is used to drive the positioning wheel closer to or away from the rotation axis.

10. A laser cleaning apparatus, characterized in that, The laser cleaning device includes: A laser, the laser being used to emit laser light; A laser cleaning head, wherein the laser cleaning head is the laser cleaning head according to any one of claims 1 to 9, wherein the beam splitting structure of the beam splitting component of the laser cleaning head is connected to the output optical path of the laser to receive the laser and to split the laser into two cleaning laser beams. A movable component is connected to the rotating component of the laser cleaning head to drive the laser cleaning head to move along the rotation axis.

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