Welding structure and welding device

Abstract

The utility model belongs to the technical field of welding equipment, and relates to a welding structure and a welding device.The welding structure comprises a collimation focusing assembly, a prism assembly and an adjusting assembly, the adjusting assembly is arranged between the collimation focusing assembly and the prism assembly, the collimation focusing assembly comprises a light emitting optical fiber, and the prism assembly comprises a prism; the adjusting assembly comprises an adjusting piece and an adapting piece which are connected with each other, the adapting piece is fixedly connected with the prism assembly, the adjusting piece is movably connected with the collimating and focusing assembly, and the adjusting piece can drive the adapting piece and the prism assembly to horizontally move relative to the collimating and focusing assembly so as to adjust the relative position between the light-emitting optical fiber and the prism. The adjusting assembly is arranged between the collimating and focusing assembly and the prism assembly, the relative position between the prism assembly and the collimating and focusing assembly can be adjusted through the adjusting piece, then the relative position between the light-emitting optical fiber and the prism is adjusted to improve the concentricity between the light-emitting optical fiber and the prism, and the light splitting uniformity and the welding effect of the prism are improved.

Description

Technical Field

[0001] The present application relates to the technical field of welding equipment, and more specifically, to a welding structure and a welding device. Background Art

[0002] In 3D wire feeding cladding welding, the laser welding structure generally includes a collimating and focusing assembly, a light-emitting optical fiber and a prism assembly. The laser first enters the collimating and focusing assembly, and then is emitted through the light-emitting optical fiber and irradiated into the prism assembly after the action of the collimating lens and the focusing lens. The prism in the prism assembly splits the laser into multiple light beams, and the multiple light beams after splitting heat the welding wire evenly from multiple surfaces of the welding wire. Only when the light-emitting optical fiber and the prism are concentrically arranged can the energy of the multiple light beams separated by the prism be equal, and each surface of the welding wire is heated evenly, so that the welding effect can be optimized.

[0003] However, in actual use, the positions of components such as light-emitting optical fibers and prisms are fixed by pins or clips. After the laser welding structure is initially assembled, the light-emitting optical fibers and prisms are not concentric due to assembly and processing errors, which will affect the welding effect. Utility Model Content

[0004] The technical problem to be solved by the utility model is that after the existing laser welding structure is initially assembled, the light-emitting optical fiber and the prism are not concentric due to assembly and processing errors, which will affect the welding effect.

[0005] In order to solve the above technical problems, the utility model provides a welding structure, which adopts the following technical solutions:

[0006] A welding structure comprises a collimating and focusing assembly, a prism assembly and an adjusting assembly, wherein the adjusting assembly is arranged between the collimating and focusing assembly and the prism assembly;

[0007] The collimating and focusing assembly includes a light-emitting optical fiber, the prism assembly includes a prism, and the adjustment assembly includes an adjustment component and a transition component that are connected to each other;

[0008] The adapter is fixedly connected to the prism assembly, and the adjustment member is movably connected to the collimating and focusing assembly. The adjustment member can drive the adapter and the prism assembly to move horizontally relative to the collimating and focusing assembly to adjust the relative position between the light-emitting optical fiber and the prism.

[0009] Furthermore, the collimating and focusing assembly is provided with a first plug hole extending along a first horizontal direction;

[0010] The adjusting member includes a first adjusting member, which includes a first fixing portion and a first inserting portion that are connected to each other. The first inserting portion is movably disposed in the first insertion hole, and the first insertion portion can move relative to the first insertion hole along the first horizontal direction.

[0011] Furthermore, the collimating and focusing assembly is also provided with a second plug hole extending along a second horizontal direction;

[0012] The adjusting member includes a second adjusting member, the second adjusting member includes a second fixing portion and a second inserting portion connected to each other, the second inserting portion is movably disposed in the second insertion hole, and the second insertion portion can move relative to the second insertion hole along the second horizontal direction.

[0013] Furthermore, the first horizontal direction is perpendicular to the second horizontal direction.

[0014] Further, the first insertion hole is threadedly connected to the first insertion portion;

[0015] and / or, the second insertion hole is threadedly connected to the second insertion portion;

[0016] And / or, the first insertion portion is interference-connected with the first insertion hole;

[0017] And / or, the second insertion portion is interference connected with the second insertion hole.

[0018] Furthermore, the adjustment assembly further includes a first limiter and a second limiter, the first limiter and the second limiter are fixed on the adapter, the first limiter is disposed adjacent to the first adjustment member, and the second limiter is disposed adjacent to the second adjustment member;

[0019] Wherein, the first limiting member is provided with a first through hole extending along the first horizontal direction, the first fixing portion comprises a first connecting rod and a first limiting block, one end of the first connecting rod is fixedly connected to the first limiting block, and the other end passes through the first through hole and is fixedly connected to the first insertion portion, and the outer diameter of the first limiting block is greater than the inner diameter of the first through hole; and / or,

[0020] The second limiting member is provided with a second through hole extending along the second horizontal direction, the second fixing portion includes a second connecting rod and a second limiting block, one end of the second connecting rod is fixedly connected to the second limiting block, and the other end passes through the second through hole and is fixedly connected to the second insertion portion, and the outer diameter of the second limiting block is greater than the inner diameter of the second through hole.

[0021] Furthermore, the collimating and focusing assembly further comprises a focusing piece, the focusing piece is located on a side of the collimating and focusing assembly close to the adapter, and the focusing piece comprises a focusing lens fixing seat, a focusing lens and a locking piece;

[0022] The first jack and / or the second jack are arranged on the focusing mirror fixing seat, the focusing mirror fixing seat is movably connected to the adapter, the focusing mirror is fixed in the focusing mirror fixing seat, the light-emitting optical fiber is arranged on the focusing mirror, and the locking piece is fixedly connected to the focusing mirror fixing seat and the adapter respectively.

[0023] Furthermore, the welding structure also includes a sealing member, which is located at the connection between the focusing lens fixing seat and the adapter, and is used to seal the gap between the focusing lens fixing seat and the adapter.

[0024] Furthermore, the prism assembly further comprises a prism fixing seat, the adapter is fixedly connected to the prism fixing seat, the prism is fixed in the prism fixing seat, and the light-emitting optical fiber passes through the adapter and is connected to the prism;

[0025] And / or, the collimating and focusing assembly also includes a collimating component and an incident optical fiber component, the incident optical fiber component, the collimating component and the focusing component are connected in sequence, the incident optical fiber component includes an optical fiber fixing seat and an incident optical fiber, the incident optical fiber is fixed in the optical fiber fixing seat, the collimating component includes a collimating mirror and a collimating mirror fixing seat, and the collimating mirror is fixed in the collimating mirror fixing seat.

[0026] In order to solve the above technical problems, the embodiment of the present application further provides a welding device, which adopts the following technical solution:

[0027] A welding device comprises the welding structure as described above.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] The adjustment component provided in the present application is arranged between the collimating and focusing component and the prism component, the collimating and focusing component includes a light-emitting optical fiber, the prism component includes a prism, and the adjustment component includes an adjusting part and an adapter that are connected to each other. The adapter is fixedly connected to the prism component, and the adjusting part is movably connected to the collimating and focusing component. The adjusting part can drive the adapter and the prism component to move horizontally relative to the collimating and focusing component. When the light-emitting optical fiber and the prism are not concentric, the relative position between the prism component and the collimating and focusing component can be adjusted by the adjusting part, and then the relative position between the light-emitting optical fiber and the prism can be adjusted to improve the concentricity between the two, thereby improving the uniformity of prism light splitting and the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the solutions in the present application or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 It is a three-dimensional structural schematic diagram of a welding structure provided by an embodiment of the utility model;

[0032] Figure 2 It is a cross-sectional schematic diagram of a welding structure provided by an embodiment of the utility model;

[0033] Figure 3 It is a top view of the focusing lens fixing seat and the adjustment assembly provided by the embodiment of the utility model;

[0034] Figure 4 It is a cross-sectional schematic diagram of a focusing lens fixing seat and an adjustment assembly provided by an embodiment of the utility model;

[0035] Figure 5 It is an exploded view of the focusing mirror fixing seat and the adjustment assembly provided in the embodiment of the utility model.

[0036] Reference numerals:

[0037] 100. Welding structure; 1. Collimation and focusing assembly; 11. Light-emitting optical fiber; 12. First plug hole; 13. Second plug hole; 14. Focusing element; 141. Focusing lens fixing seat; 142. Focusing lens; 143. Locking element; 144. First fixing ring; 15. Sealing element; 16. Collimation element; 161. Collimating lens; 162. Collimating lens fixing seat; 163. Second fixing ring; 17. Optical fiber fixing seat; 18. Incident optical fiber; 2. Prism assembly; 21. Prism; 22 , prism fixing seat; 3, adjustment component; 31, adapter; 32, first adjustment member; 321, first fixing part; 3211, first connecting rod; 3212, first limiting block; 322, first insertion part; 33, second adjustment member; 331, second fixing part; 3311, second connecting rod; 3312, second limiting block; 332, second insertion part; 34, first limiting member; 341, first through hole; 35, second limiting member; 351, second through hole. DETAILED DESCRIPTION

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0039] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] In order to enable those skilled in the art to better understand the present application, the technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0041] Combine the following Figures 1 to 5 , describing an embodiment of the utility model.

[0042] Please refer to Figure 1 and Figure 2 The welding structure 100 of the present application includes a collimating and focusing component 1, a prism component 2 and an adjusting component 3. The adjusting component 3 is arranged between the collimating and focusing component 1 and the prism component 2. The collimating and focusing component 1 includes a light-emitting optical fiber 11, and the prism component 2 includes a prism 21. The adjusting component 3 includes an adjusting member and an adapter 31 connected to each other. The adapter 31 is fixedly connected to the prism component 2, and the adjusting member is movably connected to the collimating and focusing component 1. The adjusting member can drive the adapter 31 and the prism component 2 to move horizontally relative to the collimating and focusing component 1 to adjust the relative position between the light-emitting optical fiber 11 and the prism 21. Specifically, the adapter 31 is fixed on the adjusting member, and the prism assembly 2 is fixed on the adapter. When the light-emitting fiber 11 and the prism 21 are not concentric, the adjusting member can be horizontally moved relative to the collimating and focusing assembly 1 by external force. When the adjusting member moves, it drives the adapter 31 and the prism assembly 2 to move synchronously, thereby adjusting the relative position between the light-emitting fiber 11 on the collimating and focusing assembly 1 and the prism 21 on the prism assembly 2 to improve the concentricity between the light-emitting fiber 11 and the prism 21.

[0043] In this embodiment, the specific shape of the adapter 31 is not limited, and the adapter 31 can be a plate-shaped structure, a columnar structure, or a structure of other shapes. Preferably, the adapter 31 is a polygonal structure with a hollow channel, and the light-emitting optical fiber 11 can pass through the hollow channel of the adapter 31 to connect with the prism 21. In this embodiment, the direction in which the prism assembly 2 moves horizontally relative to the collimating and focusing assembly 1 is not limited, and the prism assembly 2 can move relative to the collimating and focusing assembly 1 along the x-axis direction, the y-axis direction, or other horizontal directions.

[0044] In one embodiment, please refer to Figures 2 to 5 The collimating and focusing assembly 1 is provided with a first socket 12 extending along a first horizontal direction, the adjusting member includes a first adjusting member 32, the first adjusting member 32 includes a first fixing portion 321 and a first inserting portion 322 connected to each other, the first fixing portion 321 is directly or indirectly connected to the adapter 31, the first inserting portion 322 is movably arranged in the first socket 12, and the first inserting portion 322 can move along the first horizontal direction relative to the first socket 12.

[0045] Furthermore, the collimating and focusing assembly 1 is also provided with a second socket 13 extending along the second horizontal direction, the adjusting member includes a second adjusting member 33, the second adjusting member 33 includes a second fixing portion 331 and a second insertion portion 332 connected to each other, the second fixing portion 331 is directly or indirectly connected to the adapter 31, the second insertion portion 332 is movably arranged in the second socket 13, and the second insertion portion 332 can move along the second horizontal direction relative to the second socket 13.

[0046] In this embodiment, the number of the first adjustment members 32 and the second adjustment members 33 is not limited and can be set according to actual needs. Preferably, the number of the first adjustment members 32 is 2, and the two first adjustment members 32 are symmetrically distributed on both sides of the collimating and focusing assembly 1 along the first horizontal direction.

[0047] In this embodiment, the first horizontal direction and the second horizontal direction are two different directions. Preferably, the first horizontal direction is perpendicular to the second horizontal direction. One of the first horizontal direction and the second horizontal direction is the x-axis direction, and the other is the y-axis direction. The user can adjust the concentricity between the light-emitting optical fiber 11 and the prism 21 from multiple different directions at the same time to improve the adjustment efficiency and ensure that the light-emitting optical fiber 11 and the prism 21 are precisely aligned in multiple dimensions.

[0048] In an embodiment not shown in the figure, the first insertion portion 322 is rotatably connected to the first socket 12. Specifically, the first socket 12 is threadedly connected to the first insertion portion 322. A first internal thread is provided on the inner wall surface of the first socket 12, and a first external thread matching the first internal thread is provided on the outer wall surface of the first insertion portion 322. On the one hand, when adjusting the concentricity between the light-emitting optical fiber 11 and the prism 21, the insertion depth of the first insertion portion 322 in the first socket 12 can be controlled by controlling the number of rotations of the first insertion portion 322, thereby accurately controlling the moving distance of the adapter 31 and the prism assembly 2 relative to the collimating and focusing assembly 1; on the other hand, the first insertion portion 322 is threadedly connected to the first socket 12, and the connection between the first insertion portion 322 and the first socket 12 is stable.

[0049] In an embodiment not shown in the figure, the second insertion portion 332 is rotatably connected to the second insertion hole 13. Specifically, the second insertion portion 332 is threadedly connected to the second insertion hole 13, and a second internal thread is provided on the inner wall surface of the second insertion hole 13, and a second external thread matching the second internal thread is provided on the outer wall surface of the second insertion portion 332. On the one hand, when adjusting the concentricity between the light-emitting optical fiber 11 and the prism 21, the insertion depth of the second insertion portion 332 in the second insertion hole 13 can be controlled by controlling the number of rotations of the second insertion portion 332, thereby accurately controlling the moving distance of the adapter 31 and the prism assembly 2 relative to the collimating and focusing assembly 1; on the other hand, the second insertion portion 332 is threadedly connected to the second insertion hole 13, and the connection between the second insertion portion 332 and the second insertion hole 13 is stable.

[0050] In an embodiment not shown in the figure, the first fixed portion 321 is directly fixedly connected to the adapter 31, and the first adjusting member also includes a first motor (not shown in the figure), which is used to push the first fixed portion 321 and the first insertion portion 322 to move along the first horizontal direction. The first socket 12 and the first insertion portion 322 are interference connected, and the outer wall surface of the first insertion portion 322 is in interference contact with the inner wall surface of the first socket 12, which can improve the connection stability between the first insertion portion 322 and the first socket 12.

[0051] In an embodiment not shown in the figure, the second fixed portion 331 is directly fixedly connected to the adapter 31, and the second adjusting member also includes a second motor (not shown in the figure), which is used to push the second fixed portion 331 and the second insertion portion 332 to move along the second horizontal direction. The second insertion portion 332 and the second socket 13 are in interference connection, and the outer wall surface of the second insertion portion 332 is in interference contact with the inner wall surface of the second socket 13, which can improve the connection stability between the second insertion portion 332 and the second socket 13.

[0052] In one embodiment, please refer to Figures 3 to 5The adjustment component 3 also includes a first limit member 34 and a second limit member 35, which are fixed on the adapter 31. The first limit member 34 is arranged adjacent to the first adjustment member 32, and the second limit member 35 is arranged adjacent to the second adjustment member 33. The first limit member 34 is provided with a first through hole 341 extending along the first horizontal direction. The first fixing portion 321 includes a first connecting rod 3211 and a first limit block 3212. One end of the first connecting rod 3211 is fixedly connected to the first limit block 3212, and the other end passes through the first through hole 341 and is fixedly connected to the first insertion portion 322. The outer diameter of the first limit block 3212 is greater than the inner diameter of the first through hole 341. In this example, the first adjusting member 32 can rotate and move horizontally relative to the first through hole 341. The first limit member 34 is used to support the first adjusting member 32. The first through hole 341 can provide a guide for the first adjusting member 32. The outer diameter of the first limit block 3212 is larger than the inner diameter of the first through hole 341. When the first limit block 3212 moves toward the direction close to the first socket 12, the first limit block 3212 abuts against the first limit member 34 and drives the first limit member 34 and the adapter 31 to move synchronously, thereby driving the prism assembly 2 to move to adjust the relative position between the light-emitting optical fiber 11 and the prism 21.

[0053] Furthermore, the second limiting member 35 is provided with a second through hole 351 extending along the second horizontal direction, and the second fixing portion 331 includes a second connecting rod 3311 and a second limiting block 3312, one end of the second connecting rod 3311 is fixedly connected to the second limiting block 3312, and the other end passes through the second through hole 351 and is fixedly connected to the second insertion portion 332, and the outer diameter of the second limiting block 3312 is greater than the inner diameter of the second through hole 351. In this example, the second adjusting member 33 can rotate and move horizontally relative to the second through hole 351, the second limit member 35 is used to support the second adjusting member 33, the second through hole 351 can provide a guide for the second adjusting member 33, the outer diameter of the second limit block 3312 is larger than the inner diameter of the second through hole 351, and when the second limit block 3312 moves toward the direction close to the second socket 13, the second limit block 3312 abuts against the second limit member 35 and drives the second limit member 35 and the adapter 31 to move synchronously, thereby driving the prism assembly 2 to move to adjust the relative position between the light-emitting optical fiber 11 and the prism 21.

[0054] In one embodiment, please refer to Figure 2 and Figure 5The collimating and focusing assembly 1 also includes a focusing piece 14, which is located on one side of the collimating and focusing assembly 1 close to the adapter 31. The focusing piece 14 includes a focusing lens fixing seat 141, a focusing lens 142, a locking piece 143 and a first fixing ring 144. The first jack 12 and the second jack 13 are arranged on the focusing lens fixing seat 141, the focusing lens fixing seat 141 is movably connected to the adapter 31, the first fixing ring 144 fixes the focusing lens 142 in the focusing lens fixing seat 141, the light-emitting optical fiber 11 is arranged on the focusing lens 142, and the locking piece 143 is fixedly connected to the focusing lens fixing seat 141 and the adapter 31 respectively. In this embodiment, after the position between the light-emitting optical fiber 11 and the prism 21 is adjusted, the locking member 143 is used to lock the focusing lens fixing seat 141 and the adapter 31 to prevent relative displacement between the focusing lens fixing seat 141 and the adapter 31, thereby ensuring that the light-emitting optical fiber 11 and the prism 21 are always concentrically arranged during the use of the welding structure 100. The fixing method of the locking member 143 is not limited. The locking member 143 can be fixedly connected to the focusing lens fixing seat 141 and the adapter 31 by welding, riveting, bonding, fastener connection, etc. Preferably, the locking member 143 is set on the adapter 31, and screw holes are provided on the locking member 143 and the adapter 31. One side of the locking member 143 is fixedly connected to the focusing lens fixing seat 141, and the other side is screwed to the adapter 31.

[0055] In another embodiment, please refer to Figure 2 and Figure 5 The locking member 143 is disposed adjacent to the second adjusting member 33 , the first insertion hole 12 is disposed on the focusing lens fixing seat 141 , and the second insertion hole 13 is disposed on the locking member 143 .

[0056] In one embodiment, please refer to Figure 2 The welding structure 100 further includes a seal 15, which is located at the connection between the focusing lens fixing seat 141 and the adapter 31, and is used to seal the gap between the focusing lens fixing seat 141 and the adapter 31. The seal 15 can prevent dust and particles from entering the welding structure 100 through the gap between the focusing lens fixing seat 141 and the adapter 31, prevent dust and particles from contaminating optical lenses such as the focusing lens 142 and the prism 21, and increase the service life of the optical lenses.

[0057] In one embodiment, please refer to Figure 2The prism assembly 2 also includes a prism fixing seat 22, the adapter 31 is fixedly connected to the prism fixing seat 22, the prism 21 is fixed in the prism fixing seat 22, and the light-emitting optical fiber 11 passes through the adapter 31 and is connected to the prism 21; the collimation and focusing assembly 1 also includes a collimator 16 and an incident optical fiber 18 assembly, and the incident optical fiber 18 assembly, the collimator 16 and the focusing assembly 14 are connected in sequence; the incident optical fiber 18 assembly includes an optical fiber fixing seat 17 and an incident optical fiber 18, and the incident optical fiber 18 is fixed in the optical fiber fixing seat 17; the collimator 16 includes a collimator 161, a second fixing ring 163 and a collimator fixing seat 162, and the second fixing ring 163 fixes the collimator 161 in the collimator fixing seat 162. In this embodiment, the adapter 31 is fixedly connected to the prism fixing seat 22, and the prism 21 is fixed in the prism fixing seat 22. The adapter 31 can drive the prism fixing seat 22 and the prism 21 to move synchronously, and then the position of the prism 21 can be adjusted by adjusting the position of the adapter 31.

[0058] According to an embodiment of the present invention, a welding device is further provided, comprising the welding structure 100 as described above.

[0059] In this embodiment, the welding device sets an adjustment component 3 between the collimating and focusing component 1 and the prism component 2. When the light-emitting optical fiber 11 and the prism 21 are not concentric, the relative position between the prism component 2 and the collimating and focusing component 1 can be adjusted by the adjustment component 3, and then the relative position between the light-emitting optical fiber 11 and the prism 21 can be adjusted to improve the concentricity between the two, thereby improving the uniformity of the spectral distribution of the prism 21 and the welding effect.

[0060] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A welding structure, characterized in that: It comprises a collimating and focusing assembly, a prism assembly and an adjusting assembly, wherein the adjusting assembly is arranged between the collimating and focusing assembly and the prism assembly; The collimating and focusing assembly includes a light-emitting optical fiber, the prism assembly includes a prism, and the adjustment assembly includes an adjustment component and a transition component that are connected to each other; The adapter is fixedly connected to the prism assembly, and the adjustment member is movably connected to the collimating and focusing assembly. The adjustment member can drive the adapter and the prism assembly to move horizontally relative to the collimating and focusing assembly to adjust the relative position between the light-emitting optical fiber and the prism.

2. The welding structure according to claim 1, characterized in that: The collimating and focusing assembly is provided with a first plug hole extending along a first horizontal direction; The adjusting member includes a first adjusting member, which includes a first fixing portion and a first inserting portion that are connected to each other. The first inserting portion is movably disposed in the first insertion hole, and the first insertion portion can move relative to the first insertion hole along the first horizontal direction.

3. The welding structure according to claim 2, characterized in that: The collimating and focusing assembly is also provided with a second plug hole extending along a second horizontal direction; The adjusting member includes a second adjusting member, the second adjusting member includes a second fixing portion and a second inserting portion connected to each other, the second inserting portion is movably disposed in the second insertion hole, and the second insertion portion can move relative to the second insertion hole along the second horizontal direction.

4. The welding structure according to claim 3, characterized in that: The first horizontal direction is perpendicular to the second horizontal direction.

5. The welding structure according to claim 3, characterized in that: The first insertion hole is threadedly connected to the first insertion portion; and / or, the second insertion hole is threadedly connected to the second insertion portion; And / or, the first insertion portion is interference-connected with the first insertion hole; And / or, the second insertion portion is interference connected with the second insertion hole.

6. The welding structure according to claim 3, characterized in that: The adjustment assembly further includes a first limiter and a second limiter, wherein the first limiter and the second limiter are fixed on the adapter, the first limiter is disposed adjacent to the first adjustment member, and the second limiter is disposed adjacent to the second adjustment member; Wherein, the first limiting member is provided with a first through hole extending along the first horizontal direction, the first fixing portion comprises a first connecting rod and a first limiting block, one end of the first connecting rod is fixedly connected to the first limiting block, and the other end passes through the first through hole and is fixedly connected to the first insertion portion, and the outer diameter of the first limiting block is greater than the inner diameter of the first through hole; and / or, The second limiting member is provided with a second through hole extending along the second horizontal direction, the second fixing portion includes a second connecting rod and a second limiting block, one end of the second connecting rod is fixedly connected to the second limiting block, and the other end passes through the second through hole and is fixedly connected to the second insertion portion, and the outer diameter of the second limiting block is greater than the inner diameter of the second through hole.

7. The welding structure according to any one of claims 3 to 6, characterized in that: The collimating and focusing assembly further comprises a focusing piece, which is located on a side of the collimating and focusing assembly close to the adapter, and comprises a focusing lens fixing seat, a focusing lens and a locking piece; The first jack and / or the second jack are arranged on the focusing mirror fixing seat, the focusing mirror fixing seat is movably connected to the adapter, the focusing mirror is fixed in the focusing mirror fixing seat, the light-emitting optical fiber is arranged on the focusing mirror, and the locking piece is fixedly connected to the focusing mirror fixing seat and the adapter respectively.

8. The welding structure according to claim 7, characterized in that: The welding structure further comprises a sealing member, which is located at the connection between the focusing lens fixing seat and the adapter, and is used to seal the gap between the focusing lens fixing seat and the adapter.

9. The welding structure according to claim 8, characterized in that: The prism assembly further includes a prism fixing seat, the adapter is fixedly connected to the prism fixing seat, the prism is fixed in the prism fixing seat, and the light-emitting optical fiber is connected to the prism after passing through the adapter; And / or, the collimating and focusing assembly also includes a collimating component and an incident optical fiber component, the incident optical fiber component, the collimating component and the focusing component are connected in sequence, the incident optical fiber component includes an optical fiber fixing seat and an incident optical fiber, the incident optical fiber is fixed in the optical fiber fixing seat, the collimating component includes a collimating mirror and a collimating mirror fixing seat, and the collimating mirror is fixed in the collimating mirror fixing seat.

10. A welding device, characterized in that: A welded structure comprising any one of claims 1 to 9.

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