Nozzle assembly, welding gun module and laser processing equipment

Abstract

The utility model discloses a nozzle assembly, welding gun module and laser processing equipment, relates to the laser processing technical field, wherein the nozzle assembly comprises a connecting pipe, a nozzle and an elastic clamping piece, the nozzle comprises an inserting part and a main body part which are connected with each other, the inserting part is inserted in the connecting pipe, and the main body part is inserted in the connecting pipe; the main body part is positioned on the outer side of the connecting pipe; and the elastic clamping piece is arranged in the connecting pipe and is clamped between the inserting part and the inner wall of the connecting pipe. According to the technical scheme, the convenience of nozzle replacement can be improved.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, and in particular to a nozzle assembly, a welding gun module, and a laser processing equipment. Background Technology

[0002] Currently, laser processing technology is being used more and more widely. Lasers are output from welding torches, and different processing needs can be met by changing the copper nozzle at the torch's output port. For example, different copper nozzles can be used to achieve different processing purposes such as fillet welding, splicing welding, lap welding, stacking welding, cleaning, or cutting. Additionally, when using welding wire for laser welding, different wire feed diameters can be matched by changing the nozzle. However, the copper nozzle is generally fixed to the welding torch by threads, making disassembly and assembly relatively cumbersome when changing it. Utility Model Content

[0003] The main purpose of this invention is to provide a nozzle assembly, a welding gun module, and a laser processing equipment, which aims to improve the convenience of nozzle replacement.

[0004] To achieve the above objectives, the nozzle assembly proposed in this utility model includes:

[0005] A connecting pipe, wherein the connecting pipe is hollow;

[0006] A nozzle, comprising a connected insertion portion and a main body portion, the insertion portion being inserted into the connecting tube, and the main body portion being located outside the connecting tube; and

[0007] An elastic snap-fit ​​connector is disposed on the inner wall of the connecting pipe and sandwiched between the insertion part and the inner wall of the connecting pipe.

[0008] In one embodiment, the outer wall of the insertion part is provided with a slot, and the elastic snap-fit ​​member has a snap-fit ​​curved surface that protrudes toward one side of the insertion part. The snap-fit ​​curved surface is snapped into the slot, and the elastic snap-fit ​​member is arranged around the circumference of the insertion part.

[0009] In one embodiment, the resilient snap-fit ​​member has two ends spaced apart along its circumference, and a separation groove is formed between the two ends of the resilient snap-fit ​​member.

[0010] In one embodiment, the elastic snap-fit ​​member includes a limiting part and a clamping part. Along the length direction of the connecting tube, the clamping part is connected to the limiting part, and the middle part of the clamping part protrudes in a direction away from the inner wall of the connecting tube to form the snap-fit ​​curved surface.

[0011] In one embodiment, the locking portion is configured as an integral structure extending circumferentially along the elastic locking member;

[0012] Alternatively, multiple clamping parts may be provided, each clamping part being configured as a clamping strip with a centrally bent and protruding portion, and the multiple clamping parts being spaced apart circumferentially along the elastic snap-fit ​​member.

[0013] In one embodiment, the nozzle further includes an insertion portion comprising a limiting section and a snap-fit ​​section, wherein the outer diameter of the limiting section is larger than the outer diameter of the snap-fit ​​section, and the elastic snap-fit ​​member is clamped between the insertion portion and the inner wall of the connecting pipe, and the limiting section is interference-fitted with the connecting pipe.

[0014] In one embodiment, the nozzle further includes a limiting flange, which protrudes from the outer wall of the main body and is located at one end of the main body near the insertion part. The outer diameter of the limiting flange is larger than the outer diameter of the insertion part, and the limiting flange abuts against the end of the connecting pipe.

[0015] In one embodiment, the end of the connecting pipe facing the limiting flange is provided with one of a limiting protrusion and a limiting groove, and the limiting flange is provided with the other of a limiting protrusion and a limiting groove, wherein the limiting protrusion is engaged with the limiting groove.

[0016] In one embodiment, the connecting pipe is provided with two stop structures arranged opposite to each other along its length, and an installation groove is formed between the two stop structures. The elastic snap-fit ​​member is limited and installed in the installation groove.

[0017] This application also proposes a welding torch module, the welding torch module comprising:

[0018] Welding torch; and

[0019] As in any of the preceding embodiments, the nozzle assembly's connecting pipe is connected to the welding torch.

[0020] This application also proposes a laser processing device, which includes the welding gun module as described in the foregoing embodiments.

[0021] The technical solution of this utility model is that the nozzle assembly is provided with a connecting pipe for connecting the welding gun and the nozzle, and an elastic snap-fit ​​component is provided in the connecting pipe for snap-fitting with the nozzle; when it is necessary to disassemble and replace the nozzle, the nozzle is inserted and pulled along the length of the connecting pipe, and the elastic snap-fit ​​component can elastically deform towards the inner wall of the connecting pipe, so that the nozzle can snap-fit ​​or separate from the elastic snap-fit ​​component, thereby improving the convenience of connecting and disassembling the nozzle and the connecting pipe, and thus making the nozzle easy to replace. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A structural diagram of an embodiment of the nozzle assembly provided by this utility model;

[0024] Figure 2 for Figure 1 Cross-sectional view of the nozzle assembly;

[0025] Figure 3 for Figure 1 Exploded view of the nozzle assembly;

[0026] Figure 4 for Figure 3 Structural diagram of the connecting pipe of the nozzle assembly;

[0027] Figure 5 for Figure 3 A structural diagram of the nozzle in the nozzle assembly;

[0028] Figure 6 for Figure 3 Structural diagram of the elastic snap-fit ​​component of the nozzle assembly;

[0029] Figure 7 This is a structural diagram of one embodiment of the welding gun module in this application.

[0030] Explanation of icon numbers:

[0031] 1000 Welding torch module; 100 Nozzle assembly; 10 Connecting pipe; 11 Limiting protrusion; 12 Stop structure; 13 Mounting groove; 20 Nozzle; 21 Main body; 22 Insertion part; 221 Snap-fit ​​section; 222 Limiting section; 223 Snap-fit ​​groove; 23 Limiting flange; 231 Limiting groove; 30 Elastic snap-fit ​​component; 31 Limiting part; 32 Clamping part; 321 Snap-fit ​​curved surface; 33 Separation groove; 200 Welding torch.

[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0034] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] This utility model proposes a nozzle assembly 100.

[0037] See also Figures 1 to 3 In one embodiment of the present invention, the nozzle assembly 100 includes a connecting pipe 10, a nozzle 20, and an elastic snap fastener 30. The connecting pipe 10 is hollow. The nozzle 20 includes a plug-in portion 22 and a main body portion 21 connected to each other. The plug-in portion 22 is inserted into the connecting pipe 10, and the main body portion 21 is located outside the connecting pipe 10. The elastic snap fastener 30 is disposed inside the connecting pipe 10 and is sandwiched between the plug-in portion 22 and the inner wall of the connecting pipe 10.

[0038] The nozzle assembly 100 proposed in this application can be connected to the welding gun 200. The laser output from the welding gun 200 is ejected outward through the nozzle assembly 100 to realize laser processing such as laser welding, laser cutting, and laser cleaning. Different processing operations can be adapted by changing the nozzle 20 of the nozzle assembly 100. For example, different nozzles 20 can be used to realize fillet welding, splicing welding, lap welding, stacking welding, cleaning, or cutting operations.

[0039] The connecting tube 10 of the nozzle assembly 100 can be made of alloy steel, carbon steel, stainless steel, or other materials. The connecting tube 10 has a through-hole at both ends. One end of the connecting tube 10 is used to connect to the welding torch 200. The connecting tube 10 and the welding torch 200 can be connected by threaded connection, snap-fit ​​connection, interference fit, clamp fixation, or set screw tightening, etc.; alternatively, the connecting tube 10 and the welding torch 200 can be integrated into a single structure. Optionally, a scale is provided on the outer wall of the connecting tube 10 to facilitate adjustment of the connection length between the connecting tube 10 and the welding torch 200 when they are connected.

[0040] The nozzle 20 of the nozzle assembly 100 includes a main body 21 and an insertion part 22. The insertion part 22 is inserted into the channel of the connecting tube 10, and the main body 21 is located outside the connecting tube 10. A laser exit is provided at the end of the main body 21 away from the insertion part 22. Optionally, the main body 21 may also be provided with a wire guide groove for guiding the welding wire. Optionally, the nozzle 20 may be made of copper or other materials.

[0041] In this embodiment, the nozzle assembly 100 is further provided with an elastic snap-fit ​​member 30. The elastic snap-fit ​​member 30 is disposed on the inner wall of the connecting pipe 10 and sandwiched between the connecting pipe 10 and the insertion portion 22 of the nozzle 20. The elastic snap-fit ​​member 30 is in a compressed and deformed state, so that the elastic snap-fit ​​member 30 presses against the insertion portion 22, thereby pressing and fixing the insertion portion 22 in the connecting pipe 10. When it is necessary to disassemble and replace the nozzle 20, the nozzle 20 is inserted and pulled along the length direction of the connecting pipe 10. The elastic snap-fit ​​member 30 can elastically deform towards the inner wall of the connecting pipe 10, so that the nozzle 20 can be snapped or separated from the elastic snap-fit ​​member 30, improving the convenience of connecting and separating the nozzle 20 from the connecting pipe 10, thereby making it easier to replace the nozzle 20.

[0042] Optionally, the elastic snap-fit ​​member 30 can be configured as a snap ring structure arranged circumferentially around the insertion portion 22, or as a spring sheet structure located on one side of the insertion portion 22, without limitation.

[0043] Optionally, the elastic snap-fit ​​member 30 can be fixed in the connecting pipe 10 by at least one method, including but not limited to adhesive bonding, bolting, and snap-fitting.

[0044] Please see Figure 3 and Figure 6 In one embodiment, the outer wall of the insertion part 22 is provided with a slot 223, and the elastic snap-fit ​​member 30 has a snap-fit ​​curved surface 321 that protrudes toward one side of the insertion part 22. The snap-fit ​​curved surface 321 is snapped into the slot 223, and the slot 223 and the elastic snap-fit ​​member 30 are arranged around the circumference of the insertion part 22.

[0045] In this embodiment, the outer wall of the insertion portion 22 of the nozzle 20 is provided with a slot 223, and the elastic snap-fit ​​member 30 is provided with a snap-fit ​​curved surface 321 protruding towards the insertion portion 22. The elastic snap-fit ​​member 30 can generate elastic deformation so that the snap-fit ​​curved surface 321 approaches or moves away from the inner wall of the connecting tube 10. When it is necessary to disassemble and replace the nozzle 20, the nozzle 20 is inserted and pulled along the length direction of the connecting tube 10. The elastic snap-fit ​​member 30 can elastically deform in the direction of approaching the inner wall of the connecting tube 10 so that the nozzle 20 can snap or separate from the elastic snap-fit ​​member 30, thereby improving the convenience of connecting and disassembling the nozzle 20 with the connecting tube 10, and making it easier to replace the nozzle 20.

[0046] The cooperation between the slot 223 and the snap-fit ​​surface 321 can limit the insertion part 22 in the length direction of the connecting tube 10, improve the stability of the insertion part 22 in the connecting tube, and avoid the problem of the nozzle 20 being misaligned relative to the connecting tube 10 in the length direction of the connecting tube 10.

[0047] By circumferentially arranging the slot 223 and the elastic snap-fit ​​member 30 around the insertion portion 22, the connection strength between the elastic snap-fit ​​member 30 and the nozzle 20 is high, which helps to improve the stability of the nozzle 20 installed in the connecting pipe 10 and improve the overall structural stability of the nozzle assembly 100. Furthermore, the nozzle 20 can rotate relative to the connecting pipe 10, allowing adjustment of the guide wire groove arrangement of the nozzle 20 without removing it.

[0048] Please see Figure 6 In one embodiment, the elastic snap fastener 30 has two ends spaced apart along its circumference, and a separation groove 33 is formed between the two ends of the elastic snap fastener 30.

[0049] In this embodiment, the elastic snap-fit ​​member 30 is provided with a separation groove 33, which extends through the length of the connecting pipe 10. The elastic snap-fit ​​member 30 has two ends located on both sides of the separation groove 33. With this arrangement, the elastic snap-fit ​​member 30 can elastically contract or expand, making its outer diameter adjustable. When the elastic snap-fit ​​member 30 is placed in the connecting pipe 10, it can be in an elastically contracted state, giving it an outward expansion elastic force, so that the elastic snap-fit ​​member 30 is stably locked in the connecting pipe 10, reducing the risk of the elastic snap-fit ​​member 30 detaching from the connecting pipe 10.

[0050] Please see Figure 6 In one embodiment, the elastic snap-fit ​​member 30 includes a limiting part 31 and a clamping part 32. Along the length direction of the connecting tube 10, the clamping part 32 is connected to the limiting part 31. The middle part of the clamping part 32 protrudes in a direction away from the inner wall of the connecting tube 10 to form a snap-fit ​​curved surface 321.

[0051] In this embodiment, the side of the limiting part 31 is fitted with the inner wall of the connecting tube 10 so that the elastic snap-fit ​​member 30 is stably disposed in the connecting tube 10. The middle part of the clamping part 32 protrudes in a direction away from the inner wall of the connecting tube 10 to form a snap-fit ​​curved surface 321. The clamping part 32 can generate elastic deformation to change the curvature of the snap-fit ​​curved surface 321 so that the elastic snap-fit ​​member 30 can be snapped or separated from the nozzle 20.

[0052] Optionally, the elastic snap fastener 30 includes two limiting parts 31, which are disposed at both ends of the connecting tube 10 along the length direction of the connecting tube 10. The clamping part 32 is located between the two limiting parts 31, and both ends of the clamping part 32 are respectively connected to the two limiting parts 31.

[0053] Please see Figure 6 In one embodiment, a plurality of locking portions 32 are provided, and the plurality of locking portions 32 are spaced apart along the circumferential direction of the elastic locking member.

[0054] In this embodiment, the elastic snap-fit ​​member 30 includes multiple snap-fit ​​portions 32; each snap-fit ​​portion 32 is configured as a snap-fit ​​strip with a centrally bent and protruding section, which is connected to the limiting portion 31. The central portion of the snap-fit ​​portion 32 protrudes away from the inner wall of the connecting pipe 10 to form a snap-fit ​​curved surface 321. The multiple snap-fit ​​portions 32 are arranged at intervals along the circumference of the elastic snap-fit ​​member 30. In this arrangement, the multiple snap-fit ​​portions and the limiting portion 31 are connected as an integral structure, and each snap-fit ​​portion 32 can generate elastic deformation independently, which is beneficial to improving the elastic deformation capability of the elastic snap-fit ​​member 30.

[0055] In one embodiment, the locking part 32 is configured as an integral structure extending circumferentially along the elastic locking member 30.

[0056] With this configuration, the clamping part 32 can engage with the nozzle 20 at different positions in the circumference, improving the connection strength and stability.

[0057] See also Figure 2 and Figure 5 In one embodiment, the insertion part 22 includes a limiting section 222 and a snap-fit ​​section 221. The outer diameter of the limiting section 222 is larger than the outer diameter of the snap-fit ​​section 221. The outer wall of the snap-fit ​​section 221 is provided with a snap-fit ​​groove 223. The limiting section 222 is interference-fitted with the connecting pipe 10.

[0058] In this embodiment, the insertion portion 22 of the nozzle 20 includes a limiting section 222 and a snap-fit ​​section 221 arranged sequentially along the length of the nozzle 20. The outer diameter of the limiting section 222 is larger than the outer diameter of the snap-fit ​​section 221, and the limiting section 222 is located between the snap-fit ​​section 221 and the main body 21 of the nozzle 20. With this arrangement, when the insertion portion 22 is inserted into the connecting tube 10, since the outer diameter of the snap-fit ​​section 221 is relatively small, no friction will occur between the snap-fit ​​section 221 and the connecting tube 10. Only the elastic snap-fit ​​member 30 will be squeezed, reducing the resistance of the insertion portion 22 into the connecting tube 10, so that the snap-fit ​​section 221 can be inserted into the connecting tube 10 more smoothly. The limiting section 222 of the insertion portion 22 enters the connecting tube 10 last. The limiting section 222 and the connecting tube 10 are interference-fitted to improve the connection strength between the connecting tube 10 and the nozzle 20, and can also play a good sealing role to prevent light leakage.

[0059] See also Figure 1 , Figure 2 as well as Figure 5 In one embodiment, the nozzle 20 further includes a limiting flange 23, which protrudes from the outer wall of the main body 21 and is located at one end of the main body 21 near the insertion part 22. The outer diameter of the limiting flange 23 is larger than the outer diameter of the insertion part 22, and the limiting flange 23 abuts against the end of the connecting pipe 10.

[0060] In this embodiment, the nozzle 20 also includes a limiting flange 23 protruding from the side wall of the main body 21. After the insertion part 22 is inserted into the connecting pipe 10, the limiting flange 23 abuts against the end of the connecting pipe 10, which can limit the length of the nozzle 20 inserted into the connecting pipe 10. In addition, the limiting flange 23 can also serve as the operating position when the user inserts or removes the nozzle 20, making it convenient for the user to insert or remove the nozzle 20.

[0061] See also Figure 1 , Figure 4 and Figure 5 In one embodiment, the end of the connecting pipe 10 facing the limiting flange 23 is provided with one of a limiting protrusion 11 and a limiting groove 231, and the limiting flange 23 is provided with the other of a limiting protrusion 11 and a limiting groove 231, with the limiting protrusion 11 being engaged in the limiting groove 231.

[0062] In this embodiment, a limiting protrusion 11 can be provided at one end of the connecting pipe 10 facing the limiting flange 23, and a limiting groove 231 can be provided on the limiting flange 23; alternatively, a limiting groove 231 can be provided at the end of the connecting pipe 10, and a limiting protrusion 11 can be provided on the side of the limiting flange 23 facing the connecting pipe 10; the limiting protrusion 11 can be engaged in the limiting groove 231. This arrangement, through the engaging cooperation of the limiting protrusion 11 and the limiting groove 231, can restrict the rotational freedom of the nozzle 20 and prevent the nozzle 20 from rotating relative to the connecting pipe 10.

[0063] See also Figure 2 and Figure 4 In one embodiment, the inner wall of the connecting pipe 10 is provided with an installation groove 13, and the elastic snap-fit ​​member 30 is limited and installed in the installation groove 13.

[0064] In this embodiment, the connecting pipe 10 is provided with two stop structures 12 arranged opposite to each other along its length, forming a mounting groove 13 between the two stop structures 12. The elastic snap-fit ​​member 30 is snapped into the mounting groove 13. Specifically, the stop structure 12 is provided with a through hole that communicates with the mounting groove 13. The insertion part 22 passes through the through hole to reach the position of the mounting groove 13. When the elastic snap-fit ​​member 30 is set in the mounting groove 13, the cross-sectional area of ​​the through hole of the stop structure 12 is smaller than the cross-sectional area of ​​the limiting part 31 of the elastic snap-fit ​​member 30. This embodiment helps to improve the positional stability of the elastic snap-fit ​​member 30 in the connecting pipe 10, prevents the elastic snap-fit ​​member 30 from moving away from the connecting pipe 10 along its length, and ensures that the elastic snap-fit ​​member 30 can engage with the nozzle 20 to fix the nozzle 20.

[0065] Please refer to Figure 7 This application also proposes a welding torch module 1000, which includes a welding torch 200 and a nozzle assembly 100. The specific structure of the nozzle assembly 100 is as described in the above embodiment. The connecting pipe 10 of the nozzle assembly 100 is connected to the welding torch 200.

[0066] Since the welding torch module 1000 in this application 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.

[0067] This application also proposes a laser processing device, which includes a welding torch module 1000. The specific structure of the welding torch module 1000 is as described in the aforementioned embodiments. The laser processing device can be used for laser welding, laser cutting, laser cleaning, and other laser processing operations. Furthermore, by changing the nozzles 20 of the nozzle assembly 100, it can be adapted to different processing operations. For example, different nozzles 20 can be used to perform fillet welding, splicing welding, lap welding, stacking welding, cleaning, or cutting operations. In addition, in some embodiments, during laser welding, the laser processing device feeds welding wire to the welding area, and the nozzle 20 is correspondingly provided with a wire guide groove for guiding the direction of wire feeding. The nozzle 20 with a wire guide groove of the corresponding size can be replaced according to the diameter of the welding wire used.

[0068] Optionally, the laser processing equipment also includes a laser host and an optical fiber. The laser host is used to generate laser light, and the optical fiber is connected to both the laser host and the welding torch 200 to conduct the laser light. Optionally, the laser processing equipment may also include a wire feeding assembly for conveying welding wire to the welding area.

[0069] Optionally, the welding torch module 1000 in the laser processing equipment can be used handheld, or a translation component and a lifting component can be installed in the laser processing equipment to connect with the welding torch module 1000 to achieve CNC automatic processing.

[0070] Since the laser processing equipment proposed in this utility model 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 repeated here.

[0071] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A nozzle assembly, characterized in that, include: A connecting pipe, wherein the connecting pipe is hollow; A nozzle, comprising a connected insertion portion and a main body portion, the insertion portion being inserted into the connecting tube, and the main body portion being located outside the connecting tube; and An elastic snap-fit ​​connector is disposed inside the connecting tube and sandwiched between the insertion part and the inner wall of the connecting tube.

2. The nozzle assembly as claimed in claim 1, characterized in that, The outer wall of the plug-in part is provided with a slot, and the elastic snap-fit ​​member has a snap-fit ​​curved surface that protrudes toward one side of the plug-in part, and the snap-fit ​​curved surface is snapped into the slot; The elastic snap-fit ​​component is arranged circumferentially around the insertion portion.

3. The nozzle assembly as claimed in claim 2, characterized in that, The elastic snap-fit ​​member has two ends spaced apart along its circumference, and a separation groove is formed between the two ends of the elastic snap-fit ​​member.

4. The nozzle assembly as claimed in claim 2, characterized in that, The elastic snap-fit ​​component includes a limiting part and a clamping part, and the clamping part is connected to the limiting part along the length direction of the connecting tube; The middle part of the clamping part protrudes away from the inner wall of the connecting pipe, forming the clamping curved surface.

5. The nozzle assembly as claimed in claim 4, characterized in that, The locking part is configured as an integral structure extending circumferentially along the elastic snap-fit ​​member; Alternatively, multiple clamping parts may be provided, each clamping part being configured as a clamping strip with a centrally bent and protruding portion, and the multiple clamping parts being spaced apart circumferentially along the elastic snap-fit ​​member.

6. The nozzle assembly as claimed in claim 1, characterized in that, The insertion part includes a limiting section and a snap-fit ​​section. The outer diameter of the limiting section is larger than the outer diameter of the snap-fit ​​section. The elastic snap-fit ​​member is sandwiched between the insertion part and the inner wall of the connecting pipe. The limiting section is interference-fitted with the connecting pipe.

7. The nozzle assembly as claimed in claim 1, characterized in that, The nozzle also includes a limiting flange, which protrudes from the outer wall of the main body and is located at one end of the main body near the insertion part. The outer diameter of the limiting flange is larger than the outer diameter of the insertion part, and the limiting flange abuts against the end of the connecting pipe.

8. The nozzle assembly as claimed in claim 7, characterized in that, The end of the connecting pipe facing the limiting flange is provided with one of a limiting protrusion and a limiting groove, and the limiting flange is provided with the other of a limiting protrusion and a limiting groove, with the limiting protrusion being engaged with the limiting groove.

9. The nozzle assembly as described in any one of claims 1 to 8, characterized in that, The connecting pipe is provided with two stop structures arranged opposite each other along its length, and an installation groove is formed between the two stop structures. The elastic snap-fit ​​component is limited and installed in the installation groove.

10. A welding torch module, characterized in that, The welding torch module includes: Welding torch; and The nozzle assembly as described in any one of claims 1 to 9, wherein the connecting pipe of the nozzle assembly is connected to the welding torch.

11. A laser processing device, characterized in that, The laser processing equipment includes the welding gun module as described in claim 10.

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