Laser collimation unit and edge sealing head for laser cladding

Abstract

This invention relates to the field of laser cladding technology, and more particularly to a laser collimation unit and a sealing head for laser cladding. The unit includes a base and a collimating lens. A laser channel is provided on the base, and the collimating lens is fixedly disposed within the laser channel. A cooling water channel is provided inside the base. The unit also includes a plug and a threaded strip. One end of the cooling water channel passes through one end of the base to form a first inspection hole, and the other end passes through one end of the base to form a second inspection hole. A water inlet is connected to the side of one end of the cooling water channel, and a water outlet is connected to the other end. One plug is screwed into each of the first and second inspection holes. The threaded strip is detachably disposed in the cooling water channel, and the diameter of the threaded strip is equal to the inner diameter of the cooling water channel. This invention reduces the difficulty of scale removal and, simultaneously, makes it less prone to scale buildup in the cooling water channel, increasing the residence time of the cooling water in the channel and improving the cooling effect.

Description

Technical Field

[0001] This invention relates to the field of laser cladding technology, and in particular to a laser collimation unit and an edge sealing head for laser cladding. Background Technology

[0002] Laser cladding involves adding cladding material to the surface of a substrate and then using a high-density laser beam to fuse the material with the substrate surface, forming a cladding layer that is metallurgically bonded to the substrate. This significantly improves the wear resistance, corrosion resistance, heat resistance, oxidation resistance, and electrical properties of the substrate surface, thereby achieving the purpose of surface modification or repair. During the laser cladding process, the collimating lens of the collimating module is exposed to high temperatures for a long time, which not only reduces the service life of the parts and causes waste, but also causes the thermal lensing effect, which causes the laser focus to shift, making it impossible to perform stable processing for a long time.

[0003] The utility model disclosed in CN211921694U is a laser cladding processing head, including an optical fiber access module, a collimation and focusing module, and a nozzle. The optical fiber access module is used to connect to a laser. The collimation and focusing module includes a collimation and focusing outer cover, a collimation and focusing inner sleeve, a collimation device, and a focusing lens. The collimation and focusing outer cover has an inlet and an outlet on its side wall. The collimation device and the focusing lens are disposed in the collimation and focusing inner sleeve. The collimation and focusing outer cover is sleeved outside the collimation and focusing inner sleeve, so that an annular space is formed between the two, which facilitates the flow of cooling water into the annular space through the inlet and out through the outlet.

[0004] Water cooling has the drawback of easily forming scale inside the pipes. The scale needs to be cleaned in time to maintain a good cooling effect. As in the above technical solution, the annular space for circulating cooling water is relatively closed, and it is difficult to clean the scale once it forms inside the annular space. Summary of the Invention

[0005] In view of this, the present invention proposes a laser collimation unit and a sealing head for laser cladding. It can be disassembled from the cooling water channel by means of a screw ribbon, which facilitates the removal of scale from the cooling water channel during the disassembly process, reducing the difficulty of scale removal. At the same time, the screw ribbon can also make the water entering the cooling water channel form a spiral water, making it less prone to scale formation in the cooling water channel, reducing the difficulty of subsequent scale removal. Moreover, the screw ribbon increases the residence time of cooling water in the cooling water channel, improving the cooling effect.

[0006] The technical solution of this invention is implemented as follows:

[0007] On one hand, the present invention provides a laser collimation unit, including a base and a collimating lens, wherein,

[0008] A laser channel is provided on the base, and the collimating lens is fixedly installed in the laser channel;

[0009] The base is provided with a cooling water channel for circulating cooling water.

[0010] It also includes plugs and ribbons, among which,

[0011] One end of the cooling water channel passes through one end of the base to form a first inspection hole, and the other end passes through one end of the base to form a second inspection hole. A water inlet is connected to the side of one end of the cooling water channel, and a water outlet is connected to the other end. The ends of the water inlet and the water outlet that are away from the cooling water channel pass through one end of the base.

[0012] One plug is screwed into each of the first inspection hole and the second inspection hole;

[0013] The screw ribbon is detachably disposed in the cooling water channel, and the diameter of the screw ribbon is equal to the inner diameter of the cooling water channel.

[0014] Based on the above technical solutions, preferably, the laser channel includes a horizontal channel and a vertical channel, wherein,

[0015] The horizontal and vertical channels are arranged in an L-shape;

[0016] The two ends of the horizontal channel extend through one end of the base;

[0017] One end of the vertical channel is connected to the horizontal channel, and the other end passes through one end of the base;

[0018] One end of the collimating lens is positioned in the horizontal channel, and the other end is positioned in the vertical channel.

[0019] Based on the above technical solutions, preferably, the collimating lens includes a first collimating lens, a reflecting mirror, and a second collimating lens, wherein...

[0020] The first collimating lens is fixedly disposed at one end of the horizontal channel away from the vertical channel;

[0021] The reflector is fixedly disposed at the intersection of the horizontal channel and the second collimating lens, and the reflector is tilted at 45 degrees.

[0022] The second collimating lens is fixedly disposed at the end of the vertical channel away from the reflector.

[0023] Based on the above technical solutions, preferably, the cooling water flow channel includes an inlet flow channel, a connecting flow channel, and an outlet flow channel, wherein,

[0024] The inlet channel and the outlet channel are parallel to the horizontal channel and are symmetrically arranged on both sides of the vertical channel.

[0025] The connecting channel is located on one side of the vertical channel, with one end of the connecting channel connected to one end of the inlet channel and the other end connected to one end of the outlet channel.

[0026] The first inspection hole and the water inlet hole are located at the end of the water inlet channel away from the connecting channel;

[0027] The second inspection hole and the water outlet hole are located at the end of the water outlet channel away from the connecting channel;

[0028] Each of the inlet channel, connecting channel, and outlet channel is provided with one of the aforementioned spiral ribbons.

[0029] Based on the above technical solutions, preferably, one end of the screw ribbon in the water inlet channel is fixedly connected to one end of the plug in the first inspection hole, and one end of the screw ribbon in the water outlet channel is fixedly connected to one end of the plug in the second inspection hole.

[0030] Based on the above technical solutions, a preferred embodiment also includes a plug, wherein...

[0031] One end of the connecting channel passes through one end of the base to form a third inspection hole;

[0032] The plug is screwed into the third inspection hole;

[0033] One end of the spiral ribbon in the connecting channel and one end of the plug are fixedly connected.

[0034] Based on the above technical solutions, the preferred embodiment also includes a water pipe connector and a fiber optic access head, wherein...

[0035] One water pipe connector is fixed on each of the water inlet and water outlet holes;

[0036] The fiber optic connector is detachably mounted on the base at one end near the first collimating lens.

[0037] On the other hand, the present invention also provides a sealing head for laser cladding, comprising the aforementioned laser collimation unit and a body, wherein,

[0038] The body has an internal cavity.

[0039] The base, with the reflector at one end, extends through the side of the body into the inner cavity;

[0040] The base is fixedly mounted on the outside of the main body at one end where the water pipe connector is located.

[0041] A laser emission hole is provided at the end of the inner cavity away from the base, and the laser emission hole passes through the end of the body away from the base;

[0042] The second collimating lens and the laser emission aperture are concentric.

[0043] Based on the above technical solutions, preferably, the main body includes a protective lens and a focusing lens, wherein,

[0044] The protective mirror is fixedly installed in the laser emission hole, and the protective mirror is parallel to the second collimating lens;

[0045] The focusing lens is parallel to the protective lens, and is located between the second collimating lens and the protective lens, and is vertically and vertically mounted in the inner cavity.

[0046] Based on the above technical solutions, preferably, the main body further includes a lifting mechanism, a translation mechanism, and a fixed base, wherein,

[0047] The lifting mechanism is located on one side of the focusing lens and is fixedly installed in the inner cavity. The output end of the lifting mechanism is fixedly connected to the side of the focusing lens.

[0048] The translation mechanism is located at the end of the main body away from the protective mirror, and one end of the translation mechanism is fixedly connected to the main body;

[0049] The fixed base is fixedly mounted on the output end of the translation mechanism, and the output direction of the translation mechanism is parallel to the horizontal channel.

[0050] The laser collimation unit and edge sealing head for laser cladding of the present invention have the following advantages over the prior art:

[0051] Beneficial effects:

[0052] (1) By setting a detachable plug and a screw ribbon, the screw ribbon can be removed from the cooling water flow channel. During the removal of the screw ribbon, the scale in the cooling water flow channel is brought out by the screw ribbon, which facilitates the cleaning of the scale and reduces the cleaning difficulty. At the same time, the screw ribbon can also make the water entering the cooling water flow channel form a spiral water, which makes the cooling water have a flushing effect, making it less likely to form scale in the cooling water flow channel, reducing the difficulty of subsequent scale cleaning. Moreover, the screw ribbon increases the residence time of the cooling water in the cooling water flow channel, which improves the cooling effect.

[0053] (2) By setting the screw ribbon in the water inlet channel and the plug in the first inspection hole for fixed connection, and the screw ribbon in the water outlet channel and the plug in the second inspection hole for fixed connection, the screw ribbon in the connecting channel and the plug in the hole are fixedly connected, which facilitates the disassembly of the screw ribbon. Since the plug and the plug are installed by screw connection, the corresponding screw ribbon can be rotated when the plug and the plug are rotated. By rotating the screw ribbon, the side edge of the screw ribbon can peel off the scale on the inner wall of the cooling water channel, reducing the difficulty of subsequent scale cleaning. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 This is a first-view perspective perspective view of a laser collimation unit and a sealing head for laser cladding according to the present invention;

[0056] Figure 2 This is a perspective view of a laser collimation unit according to the present invention;

[0057] Figure 3 This is a perspective view of the base of the present invention;

[0058] Figure 4 This is a bottom view of the base of the present invention;

[0059] Figure 5 For the present invention Figure 4 Sectional view along axis AA;

[0060] Figure 6 For the present invention Figure 5 BB-direction sectional view;

[0061] Figure 7 For the present invention Figure 4 CC-direction sectional view;

[0062] Figure 8 For the present invention Figure 4 DD section view;

[0063] Figure 9 This is a perspective view of the base of the present invention;

[0064] Figure 10 This is a schematic diagram of the connection structure between the threaded ribbon and the plug of the present invention;

[0065] Figure 11This is a front view of a laser collimation unit and a sealing head for laser cladding according to the present invention;

[0066] Figure 12 For the present invention Figure 11 EE-directed sectional view;

[0067] Figure 13 For the present invention Figure 12 FF section view;

[0068] Figure 14 This is a second-view perspective perspective view of a laser collimation unit and a sealing head for laser cladding according to the present invention;

[0069] Figure 15 This is a third-view perspective view of a laser collimation unit and a sealing head for laser cladding according to the present invention.

[0070] Figure 16 This is a fourth-angle perspective view of a laser collimation unit and a sealing head for laser cladding according to the present invention.

[0071] In the diagram: 1. Base; 2. Collimating lens; 3. Plug; 4. Screw; 5. Hole plug; 7. Water pipe connector; 8. Fiber optic connector; 9. Body; 21. First collimating lens; 22. Reflector; 23. Second collimating lens; 91. Protective lens; 92. Focusing lens; 93. Lifting mechanism; 94. Translation mechanism; 95. Fixed base; 101. Laser channel; 102. Cooling water channel; 103. First inspection hole; 104. Second inspection hole; 105. Water inlet; 106. Water outlet; 107. Third inspection hole; 901. Inner cavity; 902. Laser emission hole; 1011. Horizontal channel; 1012. Vertical channel; 1021. Water inlet channel; 1022. Connecting channel; 1023. Water outlet channel. Detailed Implementation

[0072] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0073] like Figure 1-16 As shown, a laser collimation unit of the present invention includes a base 1, a collimating lens 2, a plug 3, and a screw ribbon 4.

[0074] The base 1 is provided with a laser channel 101, and a collimating lens 2 is fixedly installed in the laser channel 101. The base 1 is provided with a cooling water channel 102 for circulating cooling water. One end of the cooling water channel 102 passes through one end of the base 1 to form a first inspection hole 103, and the other end passes through one end of the base 1 to form a second inspection hole 104. One side of one end of the cooling water channel 102 is connected to a water inlet hole 105, and the other end is connected to a water outlet hole 106. The ends of the water inlet hole 105 and the water outlet hole 106 away from the cooling water channel 102 pass through one end of the base 1. A plug 3 is screwed into each of the first inspection hole 103 and the second inspection hole 104. A detachable threaded strip 4 is installed in the cooling water channel 102, and the diameter of the threaded strip 4 is equal to the inner diameter of the cooling water channel 102.

[0075] In the above structure, a water pipe connector 7 is fixed on both the water inlet 105 and the water outlet 106. The water pipe connector 7 connects to a tap water pipe. Cooling water enters the cooling water channel 102 through the water inlet 105 and then flows back to the tap water pipe through the water outlet 106, forming a circulation that cools the base 1. The plug 3 is used to seal the screw ribbon 4 in the cooling water channel 102. The base 1 is made of aluminum or copper. When the cooling water flows through the cooling water channel 102, it exchanges heat with the base 1, achieving heat dissipation and cooling of the base 1. This, in turn, cools the collimating lens 2 in the laser channel 101, improving the service life of the collimating lens 2 and reducing the occurrence of thermal lensing effects. Simultaneously, due to the cooling water channel... The 102 is equipped with a screw ribbon 4. Therefore, when the cooling water flows through the cooling water channel 102, the screw ribbon 4 can make the water entering the cooling water channel 102 form a spiral water, which gives the cooling water a flushing effect, making it less likely for scale to form in the cooling water channel 102, reducing the difficulty of subsequent scale cleaning. Moreover, the screw ribbon 4 increases the residence time of the cooling water in the cooling water channel 102, improving the cooling effect. When it is necessary to clean the cooling water channel 102, the plug 3 is removed, and then the screw ribbon 4 is pulled out of the cooling water channel 102 with needle-nose pliers, which facilitates the cleaning of the cooling water channel 102. In the process of pulling out the screw ribbon 4, the scale in the cooling water channel 102 is brought out by the screw ribbon 4, which facilitates the cleaning of scale and reduces the difficulty of cleaning.

[0076] Specifically, the laser channel 101 includes a horizontal channel 1011 and a vertical channel 1012, which are arranged in an L-shape. The horizontal channel 1011 is a circular hole with both ends penetrating one end of the base 1. The vertical channel 1012 is a square hole with one end connected to the horizontal channel 1011 and the other end penetrating one end of the base 1. One end of the collimating lens 2 is disposed in the horizontal channel 1011 and the other end is disposed in the vertical channel 1012. The collimating lens 2 includes a first collimating lens 21, a reflecting mirror 22, and a second collimating lens 23. The first collimating lens 21 is fixedly disposed in the horizontal channel 1011 away from the vertical channel. At one end of channel 1012, a reflector 22 is fixedly installed at the intersection of the horizontal channel 1011 and the second collimating lens 23, and the reflector 22 is tilted at 45 degrees. The second collimating lens 23 is fixedly installed at the end of the vertical channel 1012 away from the reflector 22. An optical fiber connector 8 is installed on the end of the base 1 near the first collimating lens 21 by bolt fixing. The optical fiber connector 8 is detachable and is used to connect to the laser. When the laser generated by the laser passes through the collimating lens 2, it can form an L-shaped optical path. When this module is used for the edge sealing head of laser cladding, it can reduce the length of the edge sealing head in the vertical direction and save assembly space.

[0077] As a preferred embodiment of a laser collimation unit and a sealing head for laser cladding, the cooling water channel 102 includes an inlet channel 1021, a connecting channel 1022, and an outlet channel 1023. The inlet channel 1021, connecting channel 1022, and outlet channel 1023 are arranged in a U-shape and formed by drilling holes using a twist drill bit. The inlet channel 1021 and outlet channel 1023 are parallel to the horizontal channel 1011 and symmetrically arranged on both sides of the vertical channel 1012. The connecting channel 1022 is located on one side of the vertical channel 1012, with one end connected to one end of the inlet channel 1021 and the other end connected to one end of the outlet channel 1023. A first inspection hole 103 and an inlet hole 105 are located in the inlet channel 1021 away from the connecting channel 1023. At one end of 022, the second inspection hole 104 and the outlet hole 106 are located at the end of the outlet channel 1023 away from the connecting channel 1022. The inlet hole 105 and the outlet hole 106 are also drilled using a twist drill bit. A threaded ribbon 4 is provided in each of the inlet channel 1021, the connecting channel 1022 and the outlet channel 1023. One end of the threaded ribbon 4 in the inlet channel 1021 is fixedly connected to one end of the plug 3 in the first inspection hole 103. One end of the threaded ribbon 4 in the outlet channel 1023 is fixedly connected to one end of the plug 3 in the second inspection hole 104. One end of the connecting channel 1022 passes through one end of the base 1 to form a third inspection hole 107. A plug 5 is screwed into the third inspection hole 107. One end of the threaded ribbon 4 in the connecting channel 1022 is fixedly connected to one end of the plug 5.

[0078] Specifically, by setting the plug 3 and the plug 5, the screw ribbon 4 can be easily disassembled. After disassembling the plug 3 and the plug 5, the screw ribbon 4 can be pulled out from the water inlet channel 1021, the connecting channel 1022 and the water outlet channel 1023, which facilitates the cleaning of the cooling water channel 102. Since the diameter of the screw ribbon 4 is equal to the inner diameter of the cooling water channel 102, the edge of the screw ribbon 4 will scrape off the scale adhering to the inner wall of the cooling water channel 102 during the process of pulling out the screw ribbon 4, reducing the difficulty of subsequent scale cleaning. Since the plug 3 and the plug 5 are both installed by screw connection, rotating the plug 3 and the plug 5 can drive the corresponding screw ribbon 4 to rotate. By rotating the screw ribbon 4, the edge of the screw ribbon 4 can easily peel off the scale on the inner wall of the cooling water channel 102, reducing the difficulty of scale cleaning.

[0079] A laser cladding sealing head includes the aforementioned laser collimation unit and a body 9. The body 9 has an inner cavity 901. One end of a base 1 with a reflector 22 extends through the side of the body 9 into the inner cavity 901. One end of the base 1 with a water pipe connector 7 is fixedly disposed outside the body 9. A laser emission hole 902 is provided at the end of the inner cavity 901 away from the base 1. The laser emission hole 902 passes through the end of the body 9 away from the base 1. The second collimating lens 23 and the laser emission hole 902 are concentric.

[0080] The main body 9 includes a protective lens 91 and a focusing lens 92. The protective lens 91 is fixedly installed in the laser emission hole 902 and is parallel to the second collimating lens 23. The focusing lens 92 is parallel to the protective lens 91 and is located between the second collimating lens 23 and the protective lens 91. It is also vertically adjustable in the inner cavity 901. By adjusting the focusing lens 92, the size of the laser spot after the laser emission from the main body 9 can be easily adjusted.

[0081] As a preferred embodiment of a laser collimation unit and a sealing head for laser cladding, the body 9 also includes a lifting mechanism 93, a translation mechanism 94, and a fixed base 95. The lifting mechanism 93 is located on one side of the focusing lens 92 and is fixedly installed in the inner cavity 901. The output end of the lifting mechanism 93 is fixedly connected to the side of the focusing lens 92. The translation mechanism 94 is located at the end of the body 9 away from the protective lens 91. One end of the translation mechanism 94 is fixedly connected to the body 9. The fixed base 95 is fixedly installed on the output end of the translation mechanism 94. The output direction of the translation mechanism 94 is parallel to the horizontal channel 1011.

[0082] Specifically, a partition is fixedly installed in the middle of the inner cavity 901, dividing the inner cavity 901 into two small cavities. The collimating lens 2 and the focusing lens 92 are installed in one of the small cavities, and the lifting mechanism 93 is installed in the other small cavity. The lifting mechanism 93 includes an electric linear module, which is fixedly installed on the partition. The output end of the electric linear module is fixedly connected to the side of the focusing lens 92. When the electric linear module is working, it is used to drive the focusing lens 92 to move up and down. A through hole is provided on the partition, and the output end of the electric linear module is slidably installed in the through hole. The through hole is rectangular in shape along the direction of lifting. The translation mechanism 94 includes a translation motor and a lead screw. The housing of the translation motor is fixedly installed on the main body 9, and the lead screw... One end is fixedly mounted on the output shaft of the translation motor, and the other end passes through the fixed base 95 and is threadedly engaged. A guide rail is provided between the fixed base 95 and the body 9, allowing the fixed base 95 and the body 9 to slide along the axial direction of the lead screw. The end of the fixed base 95 away from the body 9 is provided with several threaded holes, through which the fixed base 95 can be fixed on the mounting surface of the laser cladding equipment. When the translation motor is working, it drives the lead screw to rotate. Since the fixed base 95 and the laser cladding equipment are fixedly connected, when the lead screw rotates, the distance between the fixed base 95 and the translation motor changes through the threaded engagement, which is used to adjust the horizontal position of the body 9, thereby adjusting the position of the emitted light spot.

[0083] The method of using the laser collimation unit and the edge sealing head for laser cladding according to the present invention is as follows:

[0084] First, the fixed base 95 is fixed on the laser cladding equipment. The fiber optic connector 8 is connected to the laser, and the water pipe connector 7 is connected to the tap water pipe. The laser generated by the laser passes through the collimating lens 2, the focusing lens 92 and the protective lens 91 in sequence and then exits the body 9 to form a light spot. The size and position of the light spot on the workpiece surface can be adjusted by the lifting mechanism 93 and the translation mechanism 94. During the irradiation process, the tap water is used as cooling water. The cooling water enters the cooling water channel 102 from the water inlet 105 and then flows back to the tap water pipe from the water outlet 106 to form a circulation, which dissipates heat and cools the base 1. The base 1 cools the collimating lens 2 and improves the service life of the collimating lens 2.

[0085] When it is necessary to clean the cooling water channel 102 of the laser collimation unit, the plug 5 and the end cap 3 are removed respectively. The corresponding threaded ribbon 4 is pulled out of the cooling water channel 102 through the plug 5 and the end cap 3. Then the inner wall of the cooling water channel 102 is cleaned, and the threaded ribbon 4 is also cleaned. When removing the plug 5 and the end cap 3, the plug 5 and the end cap 3 are screwed to rotate, which drives the threaded ribbon 4 to rotate. Through rotation, the side edge of the threaded ribbon 4 is cleaned against the inner wall of the cooling water channel 102. Scrape off the scale on the surface, then pinch the plug 5 and the end cap 3 to pull the threaded strip 4 away from the cooling water channel 102. Continue scraping the wall during the pulling process to remove the scale from the cooling water channel 102, which will facilitate the subsequent cleaning of the scale on the inner wall of the cooling water channel 102. After cleaning, insert each threaded strip 4 into the corresponding water inlet channel 1021, connecting channel 1022, and water outlet channel 1023 of the cooling water channel 102, and screw the end cap 3 and the plug 5 to install and fix them.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser collimation unit, comprising a base (1) and a collimating lens (2), wherein, A laser channel (101) is provided on the base (1), and the collimating lens (2) is fixedly disposed in the laser channel (101); The base (1) is provided with a cooling water channel (102) inside, which is used to circulate cooling water; Its features include: a plug (3) and a threaded ribbon (4), wherein, One end of the cooling water channel (102) passes through one end of the base (1) to form a first inspection hole (103), and the other end passes through one end of the base (1) to form a second inspection hole (104). One end of the cooling water channel (102) is connected to a water inlet hole (105), and the other end is connected to a water outlet hole (106). The ends of the water inlet hole (105) and the water outlet hole (106) away from the cooling water channel (102) pass through one end of the base (1). One plug (3) is screwed into each of the first inspection hole (103) and the second inspection hole (104); The screw ribbon (4) is detachably disposed in the cooling water channel (102), and the diameter of the screw ribbon (4) is equal to the inner diameter of the cooling water channel (102). The laser channel (101) includes a horizontal channel (1011) and a vertical channel (1012), and the cooling water channel (102) includes an inlet channel (1021), a connecting channel (1022), and an outlet channel (1023), wherein, The inlet channel (1021) and the outlet channel (1023) are parallel to the horizontal channel (1011) and are symmetrically arranged on both sides of the vertical channel (1012); The connecting channel (1022) is located on one side of the vertical channel (1012). One end of the connecting channel (1022) is connected to one end of the inlet channel (1021), and the other end is connected to one end of the outlet channel (1023). The first inspection hole (103) and the water inlet hole (105) are located at one end of the water inlet channel (1021) away from the connecting channel (1022); The second inspection hole (104) and the water outlet hole (106) are located at one end of the water outlet channel (1023) away from the connecting channel (1022); Each of the inlet channel (1021), the connecting channel (1022), and the outlet channel (1023) is provided with one of the spiral ribbons (4); One end of the screw ribbon (4) in the water inlet channel (1021) is fixedly connected to one end of the plug (3) in the first inspection hole (103), and one end of the screw ribbon (4) in the water outlet channel (1023) is fixedly connected to one end of the plug (3) in the second inspection hole (104).

2. The laser collimation unit as described in claim 1, characterized in that: The horizontal channel (1011) and the vertical channel (1012) are arranged in an L-shape, wherein, The two ends of the horizontal channel (1011) extend through one end of the base (1); One end of the vertical channel (1012) is connected to the horizontal channel (1011), and the other end passes through one end of the base (1); One end of the collimating lens (2) is located in the horizontal channel (1011), and the other end is located in the vertical channel (1012).

3. The laser collimation unit as described in claim 2, characterized in that: The collimating lens (2) includes a first collimating lens (21), a reflecting mirror (22), and a second collimating lens (23), wherein, The first collimating lens (21) is fixedly disposed at one end of the horizontal channel (1011) away from the vertical channel (1012); The reflector (22) is fixedly disposed at the intersection of the horizontal channel (1011) and the second collimating lens (23), and the reflector (22) is tilted at 45 degrees. The second collimating lens (23) is fixedly disposed at one end of the vertical channel (1012) away from the reflector (22).

4. The laser collimation unit as described in claim 1, characterized in that: It also includes the pore plug (5), in which, One end of the connecting channel (1022) passes through one end of the base (1) to form a third inspection hole (107). The plug (5) is screwed into the third inspection hole (107); One end of the threaded ribbon (4) in the connecting channel (1022) is fixedly connected to one end of the plug (5).

5. A laser collimation unit as described in claim 3, characterized in that: It also includes a water pipe connector (7) and a fiber optic connector (8), wherein, One water pipe connector (7) is fixed on each of the water inlet (105) and the water outlet (106); The fiber optic connector (8) is detachably mounted on one end of the base (1) near the first collimating lens (21).

6. A sealing head for laser cladding, characterized in that: Includes the laser collimation unit and body (9) as described in claim 5, wherein, The body (9) has an inner cavity (901) inside. The base (1) is provided with one end of the reflector (22) which penetrates through the side of the body (9) into the inner cavity (901); The base (1) is provided with one end of the water pipe connector (7) which is fixedly disposed on the outside of the body (9); A laser emission hole (902) is provided at one end of the inner cavity (901) away from the base (1), and the laser emission hole (902) passes through the end of the body (9) away from the base (1); The second collimating lens (23) and the laser emission aperture (902) are concentric.

7. The edge sealing head for laser cladding as described in claim 6, characterized in that: The main body (9) includes a protective lens (91) and a focusing lens (92), wherein, The protective lens (91) is fixedly disposed in the laser emission hole (902), and the protective lens (91) is parallel to the second collimating lens (23). The focusing lens (92) is parallel to the protective lens (91), and the focusing lens (92) is located between the second collimating lens (23) and the protective lens (91), and is vertically and vertically disposed in the inner cavity (901).

8. The edge sealing head for laser cladding as described in claim 7, characterized in that: The main body (9) also includes a lifting mechanism (93), a translation mechanism (94), and a fixed base (95), wherein, The lifting mechanism (93) is located on one side of the focusing lens (92) and is fixedly installed in the inner cavity (901). The output end of the lifting mechanism (93) is fixedly connected to the side of the focusing lens (92). The translation mechanism (94) is located at one end of the body (9) away from the protective mirror (91), and one end of the translation mechanism (94) is fixedly connected to the body (9); The fixed base (95) is fixedly mounted on the output end of the translation mechanism (94), and the output direction of the translation mechanism (94) is parallel to the horizontal channel (1011).

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