An AI server liquid cooling pipeline laser spot welding jig

CN224764533UActive Publication Date: 2026-09-18GUANGDONG DAHONG NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202522251705.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2026-09-18
Estimated Expiration
2035-10-24

AI Technical Summary

Technical Problem

[0002]AI服务器液冷管路是通过液体循环实现对AI服务器进行高效热交换的装置,通常由7个部件组成,请参阅图1,AI服务器液冷管路包括方形管路一、方形管路二、钣金件一、钣金件二、钣金件三、钣金件四、和U型管,并且每个部件相互间都有位置要求,传统的工人手动固定点焊耗时长,配合位置精度不好掌握,工人直接焊接产品不良率高

Benefits of technology

[0018]Compared with the prior art, the advantages of this utility model are as follows: 1. In this utility model, square pipe one is placed in groove one, square pipe two is placed in groove two, sheet metal parts one and two are placed against the side walls of groove one and groove two under the action of through holes and fixed limiting components, sheet metal parts three are placed in groove three, sheet metal parts four are placed in groove four, and U-shaped tubes are fixedly installed between square pipe one and square pipe two. The fixed limiting components limit and fix square pipe one, square pipe two, sheet metal parts one, sheet metal parts two, sheet metal parts three and sheet metal parts four respectively, so that the workpiece can remain stable and not shift during the welding process;

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Abstract

The utility model discloses an AI server liquid cooling pipeline laser spot welding jig belongs to welding jig technical field, including jig assembly still includes fixed limiting component, installs the fixed limiting component for fixing the component of waiting for processing on jig assembly, jig assembly includes jig main part, boss no.
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Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, specifically to a laser spot welding fixture for liquid cooling pipelines of AI servers. Background Technology

[0002] AI server liquid cooling piping is a device that achieves efficient heat exchange for the AI ​​server through liquid circulation. It typically consists of seven components. Please refer to [link / reference]. Figure 1 The liquid cooling pipeline of the AI ​​server includes square pipeline 1, square pipeline 2, sheet metal part 1, sheet metal part 2, sheet metal part 3, sheet metal part 4, and U-shaped pipe. Each component has positional requirements. Traditional manual spot welding by workers is time-consuming and the positioning accuracy is difficult to control. Direct welding by workers results in a high defect rate.

[0003] Chinese patent CN222856938U discloses a welding fixture for irregularly shaped, ultra-thick liquid-cooled pipes, relating to the field of liquid-cooled pipe processing technology. It solves the technical problem that existing liquid-cooled pipe welding fixtures, while utilizing circular welding rings to simultaneously heat the current collector and the pipe body welding area, suffer from uneven heat absorption between the pipe body and the current collector, leading to overheating and damage during high-frequency welding of irregularly shaped, ultra-thick liquid-cooled pipes. The fixture includes an integrated frame and a liquid-cooled pipe, with a heating zone on the integrated frame. It also includes a pair of electromagnetic components symmetrically arranged on the integrated frame and located within the heating zone. However, this device still has the following problems:

[0004] The liquid cooling pipeline has multiple components that need to be effectively fixed and welded separately, and gaps need to be left in the fixture for disengagement.

[0005] Based on this, this utility model designs a laser spot welding fixture for liquid cooling pipelines of AI servers to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a laser spot welding fixture for liquid cooling pipelines of AI servers.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A laser spot welding fixture for liquid cooling pipelines of an AI server includes a fixture assembly and a fixing and limiting assembly;

[0009] A fixing and limiting component for fixing the component to be processed is installed on the fixture assembly;

[0010] The fixture assembly includes a fixture body, a first boss, a second boss, and a protrusion. The fixture body has a first groove for limiting the first square pipe, a second groove for limiting the second square pipe, and a fourth groove for placing a sheet metal part. The first boss and the second boss are fixedly installed on the fixture body. Fixed limiting components are installed on the first boss and the second boss respectively for fixing the first square pipe and the second square pipe. The first groove has a third groove for positioning a sheet metal part. Two protrusions are fixedly installed on the fixture assembly. Each protrusion has multiple through holes, and fixed limiting components are installed on the through holes.

[0011] Furthermore, the first and second grooves of the fixture body are misaligned along the width direction of the fixture body.

[0012] Furthermore, gaps are provided between the positions where the fixture body's groove one and groove two mate with square pipe one and square pipe two.

[0013] Furthermore, the gap is set to 0.5 millimeters.

[0014] Furthermore, the fixed limiting assembly includes bolts, pins, positioning block one and positioning block two. Threaded holes are provided on both boss one and boss two. There are two bolts that are threadedly connected to positioning block one and positioning block two respectively, and one end of each bolt is threadedly connected to the threaded hole. There are multiple pins and the pins are slidably connected to the through hole for limiting.

[0015] Furthermore, the fixed limiting component includes a pin, a movable plate 1, and a fixed clamping component. The pin is slidably connected to the through hole for limiting. There are two movable plates 1, and each movable plate 1 is fixedly connected to two pins. The pins are used to limit the sheet metal part 1 and sheet metal part 2. The fixed clamping component is connected to boss 1 and boss 2 respectively to clamp the square pipe 1 and square pipe 2.

[0016] Furthermore, the fixing and clamping assembly includes a movable plate two and a dovetail block. Dovetail grooves are respectively provided on the boss one and the boss two. The dovetail grooves are used to limit and slide with the dovetail block. The dovetail blocks are all fixedly installed on the movable plate two, and the dovetail blocks are used to limit the square pipe one and the square pipe two.

[0017] Furthermore, at least two through holes are provided.

[0018] Compared with the prior art, the advantages of this utility model are as follows: 1. In this utility model, square pipe one is placed in groove one, square pipe two is placed in groove two, sheet metal parts one and two are placed against the side walls of groove one and groove two under the action of through holes and fixed limiting components, sheet metal parts three are placed in groove three, sheet metal parts four are placed in groove four, and U-shaped tubes are fixedly installed between square pipe one and square pipe two. The fixed limiting components limit and fix square pipe one, square pipe two, sheet metal parts one, sheet metal parts two, sheet metal parts three and sheet metal parts four respectively, so that the workpiece can remain stable and not shift during the welding process;

[0019] 2. In this utility model, by loosening the two bolts and rotating the positioning block one and positioning block two, the square pipe one and square pipe two are inserted. Then, the positioning block one and positioning block two are rotated again to respectively lock the square pipe one and square pipe two. The bolts are tightened to fix the positioning block one and positioning block two. The sheet metal parts one and two are fixed by inserting the pin into the sheet metal parts one and two.

[0020] 3. In this utility model, the dovetail block is moved by pushing and pulling the second movable plate. When placing square pipe one and square pipe two, the second movable plate is pulled open to move the dovetail block outward. After placement, the dovetail block is pushed along the dovetail groove to the top surface of square pipe one and square pipe two to press against the upper end of square pipe one and square pipe two, thereby limiting and fixing square pipe one and square pipe two. When placing sheet metal part one, the first movable plate located on one side of sheet metal part one is pushed in, so that the two pins fixed on the first movable plate are inserted into sheet metal part one. Similarly, when placing sheet metal part two, the first movable plate on one side of sheet metal part two is pushed in, so that the two pins fixed on the first movable plate are inserted into sheet metal part two. Attached Figure Description

[0021] 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 these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the component to be processed;

[0023] Figure 2 This utility model relates to a three-dimensional laser spot welding fixture for liquid cooling pipelines of an AI server. Figure 1 ;

[0024] Figure 3 This utility model relates to a three-dimensional laser spot welding fixture for liquid cooling pipelines of an AI server. Figure 2 ;

[0025] Figure 4 This utility model relates to a three-dimensional laser spot welding fixture for liquid cooling pipelines of an AI server. Figure 3 .

[0026] The labels in the diagram represent:

[0027] 1. Fixture assembly; 11. Fixture body; 12. Groove 1; 13. Groove 2; 14. Boss 1; 15. Boss 2;

[0028] 16. Groove Three; 17. Groove Four; 18. Through Hole; 19. Protrusion; 2. Fixed Limiting Component; 21. Threaded Hole; 22. Bolt; 23. Pin; 24. Positioning Block One; 25. Positioning Block Two; 26. Moving Plate One; 27. Moving Plate Two; 28. Dovetail Block; 29. ​​Dovetail Groove; 3. Component to be Processed; 31. Square Pipe One; 32. Square Pipe Two; 33. Sheet Metal Part One; 34. Sheet Metal Part Two; 35. Sheet Metal Part Three; 36. Sheet Metal Part Four; 37. U-shaped Pipe. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0031] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-4 A laser spot welding fixture for liquid cooling pipelines of an AI server includes a fixture component 1 and a fixing and limiting component 2.

[0032] A fixing limit component 2 for fixing the component 3 to be processed is installed on the fixture component 1.

[0033] The fixture assembly 1 includes a fixture body 11, a first boss 14, a second boss 15, and a protrusion 19. The fixture body 11 has a first groove 12 for limiting the first square pipe 31, a second groove 13 for limiting the second square pipe 32, and a fourth groove 17 for placing a fourth sheet metal part 36. The first boss 14 and the second boss 15 are fixedly installed on the fixture body 11. Fixed limiting components 2 are respectively installed on the first boss 14 and the second boss 15 for fixing the first square pipe 31 and the second square pipe 32. The first groove 12 has a third groove 16 for positioning the third sheet metal part 35. Two protrusions 19 are fixedly installed on the fixture assembly 1. Each protrusion 19 has multiple through holes 18, and fixed limiting components 2 are installed on the through holes 18.

[0034] In some embodiments, the first groove 12 and the second groove 13 on the fixture body 11 are staggered along the width direction of the fixture body 11 to position the first square pipe 31 and the second square pipe 32, as well as the spot welding position for connecting the U-shaped pipe 37.

[0035] In some embodiments, gaps are provided between the positions where the groove 12 and groove 2 13 on the fixture body 11 mate with the square pipe 1 31 and square pipe 2 32, and the gaps are 0.5 mm, in order to prevent the product from deforming and becoming difficult to remove during the laser spot welding process.

[0036] In some embodiments, two laser spot welds are provided at the connection points of the different workpieces.

[0037] In this invention, square pipe 31 is placed in groove 12, square pipe 32 is placed in groove 23, sheet metal parts 33 and 34 are placed against the side walls of groove 12 and groove 23 under the action of through hole 18 and fixing limiting component 2, sheet metal part 35 is placed in groove 36, sheet metal part 36 is placed in groove 47, and U-shaped pipe 37 is fixedly installed between square pipe 31 and square pipe 32. The fixing limiting component 2 limits and fixes square pipe 31, square pipe 32, sheet metal part 33, sheet metal part 34, sheet metal part 35 and sheet metal part 36 respectively, so that the workpiece can remain stable and not shift during the welding process.

[0038] In some embodiments, such as Figures 2-3 As shown, the fixed limiting assembly 2 includes bolts 22, pins 23, positioning block 1 24 and positioning block 25. Threaded holes 21 are provided on both boss 14 and boss 2 15. Two bolts 22 are threadedly connected to positioning block 1 24 and positioning block 25 respectively, and one end of each bolt 22 is threadedly connected to the threaded hole 21. The pin 23 is slidably connected to the through hole 18 for limiting.

[0039] In this utility model, by loosening the two bolts 22 and rotating the positioning block 1 24 and positioning block 25, the square pipe 1 31 and square pipe 2 32 are inserted. Then, the positioning blocks 1 24 and positioning block 25 are rotated again to respectively lock the square pipe 1 31 and square pipe 2 32. The bolts 22 are tightened to fix the positioning blocks 1 24 and positioning block 25. The sheet metal parts 1 33 and 2 34 are fixed by inserting the pin 23 into them.

[0040] In some embodiments, such as Figure 4 As shown, the fixed limiting component 2 includes a pin 23, a first movable plate 26, a second movable plate 27, and a dovetail block 28. The pin 23 is slidably connected to the through hole 18 for limiting. There are two first movable plates 26, and each first movable plate 26 is fixedly connected to two pins 23. The pins 23 are used to limit the sheet metal parts 33 and 34. Dovetail grooves 29 are respectively provided on the first boss 14 and the second boss 15. The dovetail grooves 29 are used to slidably connect with the dovetail blocks 28 for limiting. The dovetail blocks 28 are all fixedly installed on the second movable plate 27, and the dovetail blocks 28 are used to limit the square pipe 31 and the square pipe 32.

[0041] In this utility model, the dovetail block 28 is moved by pushing and pulling the second movable plate 27. When placing the first square pipe 31 and the second square pipe 32, the second movable plate 27 is pulled open to move the dovetail block 28 outward. After placement, the dovetail block 28 is moved along the dovetail groove 29 to the top surface of the first square pipe 31 and the second square pipe 32 to press against the upper end of the first square pipe 31 and the second square pipe 32, thereby limiting and fixing the first square pipe 31 and the second square pipe 32. When placing the first sheet metal part 33, the first movable plate 26 located on one side of the first sheet metal part 33 is pushed in, so that the two pins 23 fixed on the first movable plate 26 are inserted into the first sheet metal part 33. Similarly, when placing the second sheet metal part 34, the first movable plate 26 on one side of the second sheet metal part 34 is pushed in, so that the two pins 23 fixed on the first movable plate 26 are inserted into the second sheet metal part 34.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An AI server liquid cooling pipeline laser spot welding jig, comprising a jig assembly (1), characterized in that: It also includes a fixed limiting component (2); A fixing limit component (2) for fixing the component to be processed (3) is installed on the fixture assembly (1); The fixture assembly (1) includes a fixture body (11), a first boss (14), a second boss (15), and a protrusion (19). The fixture body (11) has a first groove (12) for limiting the first square pipe (31), a second groove (13) for limiting the second square pipe (32), and a fourth groove (17) for placing the fourth sheet metal part (36). The first boss (14) and the second boss (15) are fixedly installed on the fixture body (11). Fixed limiting components (2) are installed on boss one (14) and boss two (15) respectively for fixing square pipe one (31) and square pipe two (32). A groove three (16) for positioning sheet metal part three (35) is opened on groove one (12). Two protrusions (19) are fixedly installed on the jig assembly (1). Multiple through holes (18) are opened on each of the protrusions (19). Fixed limiting components (2) are installed on the through holes (18). 2.The AI server liquid cooling pipe laser spot welding jig according to claim 1, characterized in that, The first groove (12) and the second groove (13) of the main body of the fixture are misaligned along the width direction of the main body of the fixture (11). 3.The AI server liquid cooling pipe laser spot welding jig according to claim 1, characterized in that, Gaps are provided between the mating positions of the main body groove 1 (12) and groove 2 (13) and the square pipe 1 (31) and square pipe 2 (32). 4.The AI server liquid cooling pipe laser spot welding jig according to claim 3, characterized in that, The gap is set to 0.5 mm. 5.The AI server liquid cooling pipe laser spot welding jig according to claim 1, characterized in that, The fixed limiting component (2) includes bolts (22), pins (23), positioning block one (24) and positioning block two (25). Threaded holes (21) are provided on both boss one (14) and boss two (15). There are two bolts (22) that are threadedly connected to positioning block one (24) and positioning block two (25) respectively, and one end of each bolt (22) is threadedly connected to the threaded hole (21). There are multiple pins (23) and the pins (23) are slidably connected to the through hole (18). 6.The AI server liquid cooling pipe laser spot welding jig according to claim 1, characterized in that, The fixed limiting component (2) includes a pin (23), a movable plate (26) and a fixed clamping component. The pin (23) is slidably connected to the through hole (18). There are two movable plates (26), and each movable plate (26) is fixedly connected to two pins (23). The pins (23) are used to limit the sheet metal part (33) and the sheet metal part (34). The fixed clamping component is connected to the boss (14) and the boss (15) respectively to clamp the square pipe (31) and the square pipe (32). 7.The AI server liquid cooling pipe laser spot welding jig according to claim 6, characterized in that, The fixed clamping assembly includes a second movable plate (27) and a dovetail block (28). Dovetail grooves (29) are respectively provided on the first boss (14) and the second boss (15). The dovetail grooves (29) are used to limit and slide with the dovetail block (28). The dovetail blocks (28) are all fixedly installed on the second movable plate (27), and the dovetail blocks (28) are used to limit the first square pipe (31) and the second square pipe (32). 8.The AI server liquid cooling pipe laser spot welding jig according to claim 1, characterized in that, There are at least two through holes (18).

Citation Information

Patent Citations

  • Special-shaped super-thick liquid cooling pipe welding tool

    CN222856938U