Laser welding anti-splashing tool and laser welding machine

Abstract

The utility model relates to a laser welding anti-splashing tool and a laser welding machine, and belongs to the technical field of laser welding, the laser welding anti-splashing tool comprises a pressing assembly, the pressing assembly comprises a mounting plate and a copper nozzle connected to the mounting plate and used for pressing the surface of a to-be-welded part, and the copper nozzle is provided with a vertically-through laser channel; and the dust suction cover is installed on the installation plate, a laser through hole matched with the laser channel and a dust suction channel used for negative pressure dust suction are formed in the dust suction cover, and a viscous layer used for adhering welding splashes is arranged on the inner wall of the dust suction cover. According to the tool, smoke dust and welding slag generated during welding can be sucked away through negative pressure of the dust suction cover communicating with the copper nozzle, and large-particle welding slag difficult to collect can be adhered and collected through the viscous layer on the inner wall of the dust suction cover, so that the situation that the large-particle welding slag splashes to impact the inner wall face of the dust suction cover and then falls back to the surface of a welded part can be avoided, and the welding quality is improved. And the collecting effect of the tool on large-particle welding slag is improved, and the welding quality is further guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of laser welding, and in particular to a laser welding anti-spatter tooling and a laser welding machine. Background Art

[0002] The busbar welding process of the battery module is a very important step in the battery module assembly process. The busbar is connected and fused to the battery cell pole through laser welding, so that the connection between the busbar and the battery cell has a certain structural strength and current carrying capacity.

[0003] Since there are flexible printed circuits (FPCs) or wiring harnesses next to the busbars, the high-temperature welding slag splashes during the laser welding process will burn the flexible printed circuits (FPCs) or wiring harnesses, causing a short circuit, which makes it impossible to collect the voltage and temperature information of the battery in subsequent tests. In addition, for CTP (Cell To Pack) and CTC (Cell To Chassis) products, it is also necessary to prevent welding slag from splashing into the box and puncturing the blue film of the battery cell, causing a short circuit.

[0004] In the related art, the patent with the authorization announcement number CN219818436U discloses a laser welding copper nozzle tooling, which uses a dust hood connected to the copper nozzle to collect the smoke and welding slag generated during welding to avoid affecting the welding quality. However, the collection effect of large particles of welding slag is poor. Large particles of welding slag are not easy to be extracted with the airflow, and after splashing and hitting the inner wall of the dust hood, they are easy to fall back to the surface of the welded part due to gravity, affecting the welding quality. Summary of the invention

[0005] The embodiments of the present application provide a laser welding anti-splash tooling and a laser welding machine to solve the problem that the tooling in the related art has a poor collection effect on large particles of welding slag, large particles of welding slag are not easily extracted with the airflow, and after splashing and hitting the inner wall of the dust hood, they are easily fallen back to the surface of the welded part due to gravity, thus affecting the welding quality.

[0006] In a first aspect, an embodiment of the present application provides a laser welding anti-spatter tool, comprising:

[0007] A clamping assembly, comprising a mounting plate and a copper nozzle connected to the mounting plate and used to clamp the surface of the workpiece to be welded, wherein the copper nozzle is provided with a laser channel running through from top to bottom;

[0008] A dust hood is installed on the side of the mounting plate opposite to the copper nozzle. The dust hood is provided with a laser via hole matching the laser channel and a dust extraction channel for negative pressure dust extraction. The inner wall of the dust hood is provided with a sticky layer for adhering welding spatter.

[0009] In a first aspect, in some embodiments, the material of the adhesive layer is fireproof gel, and the fireproof gel is coated on the inner wall of the dust hood and covers the entire inner wall of the dust hood.

[0010] In the first aspect, in some embodiments, the dust hood is connected to a symmetrically arranged first pipe, the first pipe is connected to the dust hood through an air collecting hood, and the air collecting hood and the first pipe form the dust extraction channel.

[0011] In the first aspect, in some embodiments, the air collecting hood has an air collecting channel connecting the first pipe and the dust extraction hood, and the cross-section of the air collecting channel gradually increases in a direction away from the first pipe.

[0012] In the first aspect, in some embodiments, the dust hood is detachably mounted on the mounting plate, the air collecting hood is detachably mounted on the dust hood, and a sealing ring is installed between the air collecting hood and the dust hood.

[0013] In the first aspect, in some embodiments, a second pipe is installed on the side of the mounting plate where the dust hood is located, and the second pipe is connected to the first pipe via a detachable pipe section.

[0014] In the first aspect, in some embodiments, a protective gas channel connected to the laser channel is provided on the outer peripheral wall of the copper nozzle, and the gas outlet of the protective gas channel is close to the outlet of the laser channel.

[0015] In the first aspect, in some embodiments, a dust removal channel connected to the laser channel is provided on the outer peripheral wall of the copper nozzle, and an air inlet of the dust removal channel is far away from the outlet of the laser channel.

[0016] In the first aspect, in some embodiments, a third pipe connected to the air outlet of the dust removal channel is installed on the mounting plate, and the third pipe extends to the side where the dust hood is located.

[0017] In a second aspect, an embodiment of the present application provides a laser welding machine, comprising:

[0018] The laser welding anti-spatter tooling described in any of the above items.

[0019] The beneficial effects of the technical solution provided by this application include:

[0020] The embodiment of the present application provides a laser welding anti-splash tooling and a laser welding machine. Due to the clamping assembly, it includes a mounting plate and a copper nozzle connected to the mounting plate and used to clamp the surface of the workpiece to be welded, and the copper nozzle is provided with a laser channel running through from top to bottom; a dust hood is installed on the side of the mounting plate opposite to the copper nozzle, and the dust hood is provided with a laser through hole matching the laser channel, and a dust extraction channel for negative pressure dust extraction, and a sticky layer for adhering welding spatter is provided on the inner wall of the dust hood.

[0021] Therefore, the laser welding anti-splash tooling of the present application can use the negative pressure of the dust hood connected to the copper nozzle to extract the smoke and welding slag generated during welding, so as to reduce the influence of the smoke and welding slag on the welding quality; at the same time, for the large particles of welding slag that are difficult to collect, the sticky layer on the inner wall of the dust hood can be used to adhere and collect them, thereby preventing the large particles of welding slag from splashing and hitting the inner wall of the dust hood and then falling back on the surface of the welded part, thereby improving the collection effect of the tooling for large particles of welding slag and further ensuring the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic top view of a tool provided in an embodiment of the present application;

[0024] Figure 2 A front view schematic diagram of a tool provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of the dust hood provided in the embodiment of the present application;

[0026] Figure 4 A schematic diagram of the structure of a copper nozzle provided in an embodiment of the present application;

[0027] Figure 5 A side view schematic diagram of a copper nozzle provided in an embodiment of the present application.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Mounting plate; 2. Copper nozzle; 21. Laser channel; 22. Protective gas channel; 23. Dust removal channel; 3. Dust hood; 31. Laser via; 32. Viscous layer; 4. First pipeline; 5. Gas collecting hood; 6. Second pipeline; 7. Removable pipe section; 8. Third pipeline. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] The embodiments of the present application provide a laser welding anti-splash tooling and a laser welding machine, which can solve the problem that the tooling in the related art has a poor collection effect on large particles of welding slag, large particles of welding slag are not easily extracted with the airflow, and after splashing and hitting the inner wall of the dust hood, they are easily fallen back to the surface of the welded part due to gravity, thus affecting the welding quality.

[0032] See also Figures 1 to 5 As shown, the first aspect of the embodiment of the present application provides a laser welding anti-spatter tool, comprising:

[0033] A clamping assembly, comprising a mounting plate 1 and a copper nozzle 2 connected to the mounting plate 1 and used to clamp the surface of the workpiece to be welded, wherein the copper nozzle 2 is provided with a laser channel 21 which passes through from top to bottom;

[0034] The dust hood 3 is installed on the side of the mounting plate 1 opposite to the copper nozzle 2. The dust hood 3 is provided with a laser through hole 31 matching the laser channel 21 and a dust extraction channel for negative pressure dust extraction. The inner wall of the dust hood 3 is provided with a sticky layer 32 for adhering welding spatter.

[0035] A dust hood 3 is installed on the mounting plate 1 of the laser welding anti-splash tooling in the embodiment of the present application, and the space inside the dust hood 3 is connected to the laser channel 21 in the copper nozzle 2 on the mounting plate 1. Therefore, during laser welding, the negative pressure of the dust hood 3 connected to the copper nozzle 2 can be used to extract the smoke and welding slag generated during welding, so as to reduce the influence of the smoke and welding slag on the welding quality.

[0036] At the same time, a sticky layer 32 is provided on the inner wall of the dust hood 3 in the embodiment of the present application. The sticky layer 32 can adhere to and collect large particles of welding slag that hit the inner wall of the dust hood 3, thereby preventing large particles of welding slag from splashing and hitting the inner wall of the dust hood 3 and then falling back on the surface of the welded part, thereby improving the collection effect of the tooling for large particles of welding slag and further ensuring the welding quality.

[0037] Exemplarily, before laser welding, the end of the copper nozzle 2 is used to press the surface of the workpiece to be welded. During welding, the laser emitting device emits the laser downward from the position of the laser via 31. The laser passes through the dust hood 3 and the laser channel 21 in the copper nozzle 2 and reaches the surface of the workpiece to be welded, so that the weldment is melted at the laser irradiation point, and the generated smoke is sucked away by the external negative pressure exhaust equipment connected to the dust hood 3 along with the airflow.

[0038] During the welding process, the light-weight small-particle welding slag generated is entrained by the airflow and sucked away by the external negative pressure exhaust equipment connected to the dust hood 3. The heavy-particle welding slag generated continues to splash and move upward to the inside of the dust hood 3. After hitting the inner wall of the dust hood 3, it is adhered and collected by the sticky layer 32 on the inner wall of the dust hood 3. The dust hood 3 is installed on the mounting plate 1 by fasteners and can be disassembled and cleaned regularly.

[0039] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a laser welding anti-splash tooling, the material of the adhesive layer 32 of the laser welding anti-splash tooling is fireproof gel, and the fireproof gel is coated on the inner wall of the dust hood 3 and covers the inner wall of the dust hood 3.

[0040] The adhesive layer 32 of the embodiment of the present application is made of fireproof adhesive material, which can improve the safety of the tooling. Specifically, the material of the adhesive layer 32 is fireproof gel, which is flame retardant and sticky and will not be ignited by welding slag, ensuring the welding slag adhesion and collection effect while improving safety.

[0041] Exemplarily, the fireproof gel is coated on the inner wall of the dust hood 3, which can effectively adhere to the welding slag splashed onto the inner wall, preventing large welding slag from accelerating too fast, splashing onto the inner wall of the dust hood 3, and rebounding back to the surface of the welded parts.

[0042] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a laser welding anti-splash tooling, the dust hood 3 of the laser welding anti-splash tooling is connected to a symmetrically arranged first pipe 4, the first pipe 4 is connected to the dust hood 3 through an air collecting hood 5, and the air collecting hood 5 and the first pipe 4 form a dust extraction channel.

[0043] The dust hood 3 of the embodiment of the present application is connected with two symmetrically arranged first pipes 4, and the first pipes 4 and the dust hood 3 are connected through the air collecting hood 5, thereby forming dust extraction channels on both sides of the dust hood 3. For example, the first pipes 4 on both sides can be connected to external air extraction equipment, and cooperate with the laser through-holes 31 on the dust hood 3 to intake air, so as to achieve simultaneous suction on both sides to enhance the dust removal effect.

[0044] Alternatively, the first pipe 4 on one side is connected to an external air extraction device, and the first pipe 4 on the other side is connected to an external air blowing device, so that a downstream airflow is formed between the first pipes 4 on both sides, which can speed up the airflow speed and further improve the dust removal effect.

[0045] Exemplarily, the outer contour of the dust hood 3 can be made into a rectangular parallelepiped, a sphere, a cylinder, a waist-shaped column, etc., and a laser through hole 31 is opened according to the actual shape, and the air collecting hood 5 and the first pipe 4 are installed.

[0046] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a laser welding anti-splash tooling, wherein the air collecting hood 5 of the laser welding anti-splash tooling has an air collecting channel connecting the first pipe 4 and the dust hood 3, and the cross-section of the air collecting channel gradually increases in the direction away from the first pipe 4.

[0047] The air collecting hood 5 of the embodiment of the present application connects the first pipe 4 and the dust hood 3. The cross-section of the air collecting channel in the air collecting hood 5 gradually increases in the direction away from the first pipe 4. When the first pipe 4 is connected to an external exhaust device for exhaust, the air collecting hood 5 can gather the airflow into the first pipe 4 to ensure the dust collection efficiency.

[0048] Exemplarily, the gas collecting hood 5 is designed to be in the shape of a prism or a trumpet, and the dust collecting efficiency can be improved by increasing the cross-sectional area of ​​the air inlet end of the gas collecting hood 5. In addition, a sticky layer 32 can also be provided on the inner wall surface of the gas collecting hood 5 to adhere to the welding slag, so as to prevent large particles of welding slag from being accelerated too fast, splashing onto the inner wall of the gas collecting hood 5, and then rebounding back to the surface of the welded part.

[0049] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a laser welding anti-splash tooling, the dust hood 3 of the laser welding anti-splash tooling is detachably mounted on the mounting plate 1, the air collecting hood 5 is detachably mounted on the dust hood 3, and a sealing ring is installed between the air collecting hood 5 and the dust hood 3.

[0050] The dust hood 3 of the embodiment of the present application is installed on the upper surface of the mounting plate 1 by fasteners, which is convenient for regular disassembly and cleaning. The air collecting hood 5 is also installed on the dust hood 3 by fasteners, which is convenient for disassembly, replacement or cleaning. In addition, a sealing ring is installed between the air collecting hood 5 and the dust hood 3, which can ensure the sealing and ensure the efficiency of air extraction and dust removal.

[0051] For example, the dust hood 3 and the gas collecting hood 5 can be detachably installed by means of snap connection, bolt connection, etc. In some other embodiments, the dust hood 3 and the gas collecting hood 5 can be fixedly installed by means of welding, etc.

[0052] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a laser welding anti-splash tooling, a second pipe 6 is installed on the side of the dust hood 3 on the mounting plate 1 of the laser welding anti-splash tooling, and the second pipe 6 and the first pipe 4 are connected to each other through a detachable pipe section 7.

[0053] A second pipe 6 is installed on the side of the dust hood 3 on the mounting plate 1 of the embodiment of the present application. The second pipe 6 is fixed to the mounting plate 1 by a clamp. The second pipe 6 is L-shaped. One end of the second pipe 6 faces the first pipe 4, and the second pipe 6 and the first pipe 4 can be connected to each other after installing a detachable pipe section 7. The other end of the second pipe 6 is arranged upward to facilitate the installation and docking of an external exhaust pipe.

[0054] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a laser welding anti-splash tooling, wherein a protective gas channel 22 connected to a laser channel 21 is provided on the outer peripheral wall of a copper nozzle 2 of the laser welding anti-splash tooling, and an air outlet of the protective gas channel 22 is close to the outlet of the laser channel 21.

[0055] The protective gas channel 22 of the embodiment of the present application can be passed with an inert gas to prevent oxidation of the weld. Since the temperature at the welding point is extremely high during laser welding, the weld produced by welding will react with oxygen in the air at high temperature. Therefore, a protective gas channel 22 is provided on the outer peripheral wall of the copper nozzle 2 for passing an inert gas such as helium to prevent oxidation of the weld.

[0056] At the same time, since the temperature of the inner cavity of the copper nozzle 2 is relatively high during the welding process, the gas in the copper nozzle 2 flows upward after being heated. In order to ensure that the introduced protective gas can cover the surface of the welded part, the outlet of the protective gas channel 22 is set close to the outlet of the laser channel 21.

[0057] For example, in this example, two shielding gas channels 22 are symmetrically arranged on the outer wall of the copper nozzle 2. The two shielding gas channels 22 can simultaneously blow shielding gas near the outlet of the laser channel 21 to cover the surface of the welded part, avoid weld oxidation, and ensure welding quality.

[0058] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a laser welding anti-splash tooling, wherein a dust removal channel 23 connected to a laser channel 21 is arranged on the outer peripheral wall of the copper nozzle 2 of the laser welding anti-splash tooling, and an air inlet of the dust removal channel 23 is far away from the outlet of the laser channel 21.

[0059] A dust removal channel 23 connected to the laser channel 21 is also provided on the outer peripheral wall of the copper nozzle 2 in the embodiment of the present application. The dust removal channel 23 can be connected to an external exhaust device to absorb the smoke and dust in the laser channel 21 on the copper nozzle 2.

[0060] During the welding process, the smoke generated will first be concentrated in the laser channel 21 in the copper nozzle 2. Therefore, a dust removal channel 23 is set on the outer wall of the copper nozzle 2 to extract dust, and the dust extraction hood 3 is used to extract dust, which can greatly enhance the dust removal effect and avoid the problem of cold welding caused by smoke blocking the laser.

[0061] In addition, in order to prevent the shielding gas blown out of the shielding gas channel 22 from being directly sucked away by the dust removal channel 23 and failing to cover the surface of the welded part, the air inlet of the dust removal channel 23 is far away from the outlet of the laser channel 21 .

[0062] For example, in this example, two protective gas channels 22 are symmetrically arranged on the outer wall of the copper nozzle 2, and the air outlet of the protective gas channel 22 is close to the outlet of the laser channel 21. The dust removal channel 23 on the outer wall of the copper nozzle 2 is arranged in the middle of the two protective gas channels 22, and the air inlet of the dust removal channel 23 is located in the middle section of the copper nozzle 2.

[0063] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a laser welding anti-splash tooling, on the mounting plate 1 of which is installed a third pipe 8 connected to the air outlet of the dust removal channel 23, and the third pipe 8 extends to the side where the dust hood 3 is located.

[0064] A third pipe 8 is fixedly installed on the mounting plate 1 of the embodiment of the present application. One end of the third pipe 8 is connected to the air outlet of the dust removal channel 23, and the other end passes through the mounting plate 1 and extends to the side of the second pipe 6, which is convenient for installation and docking with an external exhaust pipe.

[0065] Exemplarily, in this embodiment, two groups of copper nozzles 2 are fixedly installed on the mounting plate 1, and the two groups of copper nozzles 2 are distributed along the length direction of the dust hood 3. Two strip-shaped laser through holes 31 are correspondingly opened on the dust hood 3. Two third pipes 8 are correspondingly fixedly installed on the mounting plate 1. One end of the third pipe 8 is branched and connected to the dust removal channel 23 on one group of copper nozzles 2, and the other end passes through the mounting plate 1 and extends to the side of the second pipe 6.

[0066] See also Figures 1 to 5 As shown, the second aspect of the embodiment of the present application provides a laser welding machine, comprising:

[0067] The laser welding anti-spatter tooling according to any one of the above embodiments.

[0068] The laser welding machine of the embodiment of the present application is installed with the laser welding anti-splash tooling of any of the above-mentioned embodiments. Therefore, during the welding process, the smoke and welding slag generated during welding can be extracted to reduce the influence of the smoke and welding slag on the welding quality. At the same time, large particles of welding slag can be collected to prevent the large particles of welding slag from falling back onto the surface of the welded parts, thereby ensuring the welding quality.

[0069] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0070] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0071] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A laser welding anti-splash tool, characterized in that: include: A clamping assembly, comprising a mounting plate (1) and a copper nozzle (2) connected to the mounting plate (1) and used for clamping the surface of a workpiece to be welded, wherein the copper nozzle (2) is provided with a laser channel (21) that passes through from top to bottom; A dust hood (3) is mounted on the side of the mounting plate (1) opposite to the copper nozzle (2), the dust hood (3) is provided with a laser through hole (31) matching the laser channel (21), and a dust extraction channel for negative pressure dust extraction, and the inner wall of the dust hood (3) is provided with a sticky layer (32) for adhering welding spatter.

2. The laser welding anti-splash tooling according to claim 1, characterized in that: The material of the adhesive layer (32) is fireproof gel, and the fireproof gel is coated on the inner wall of the dust hood (3) and covers the entire inner wall of the dust hood (3).

3. The laser welding anti-splash tooling according to claim 1, characterized in that: The dust hood (3) is connected to a symmetrically arranged first pipe (4), the first pipe (4) is connected to the dust hood (3) through an air collecting hood (5), and the air collecting hood (5) and the first pipe (4) form the dust extraction channel.

4. The laser welding anti-splash tooling according to claim 3, characterized in that: The air collecting hood (5) has an air collecting channel in communication with the first pipe (4) and the dust extraction hood (3), and the cross section of the air collecting channel gradually increases in a direction away from the first pipe (4).

5. The laser welding anti-splash tooling according to claim 3, characterized in that: The dust hood (3) is detachably mounted on the mounting plate (1), the air collecting hood (5) is detachably mounted on the dust hood (3), and a sealing ring is installed between the air collecting hood (5) and the dust hood (3).

6. The laser welding anti-splash tooling according to claim 3, characterized in that: A second pipe (6) is installed on the side of the mounting plate (1) where the dust hood (3) is located, and the second pipe (6) and the first pipe (4) are connected to each other via a detachable pipe section (7).

7. The laser welding anti-splash tooling according to claim 1, characterized in that: A protective gas channel (22) connected to the laser channel (21) is provided on the outer peripheral wall of the copper nozzle (2), and the gas outlet of the protective gas channel (22) is close to the outlet of the laser channel (21).

8. The laser welding anti-spatter tooling according to claim 1, characterized in that: A dust removal channel (23) connected to the laser channel (21) is provided on the outer peripheral wall of the copper nozzle (2), and the air inlet of the dust removal channel (23) is far away from the outlet of the laser channel (21).

9. The laser welding anti-splash tooling according to claim 8, characterized in that: A third pipe (8) connected to the air outlet of the dust removal channel (23) is installed on the installation plate (1), and the third pipe (8) extends to the side where the dust hood (3) is located.

10. A laser welding machine, characterized in that: include: The laser welding anti-spatter tooling according to any one of claims 1 to 9.

Images