Anti-deformation water cooling plate welding tool based on friction stir welding

Abstract

The utility model discloses an anti-deformation water cooling plate welding tool based on friction stir welding, which comprises a fixed plate, two groups of clamping plates which relatively displace are arranged on the fixed plate, and the two groups of clamping plates are symmetrically arranged; two groups of movable blocks capable of moving are arranged on the fixed plate, two groups of limiting plates are arranged between the two groups of movable blocks, lifting assemblies are arranged on the limiting plates, limiting rollers are further arranged on the limiting plates, and the lifting assemblies are matched with the limiting rollers, so that the limiting rollers move towards the direction of the fixed plate for pressing and limiting; the welding device has the advantages that the movable block drives the limiting plate to synchronously move along the welding path, the lifting assembly is combined to drive the limiting roller to apply real-time pressing force to the surface of the water-cooling plate runner cover plate, local deformation caused by heat input in the welding process is effectively restrained, the limiting roller rolls and presses along with movement of the stirring head, and the welding quality is improved. And continuous dynamic constraint is formed, and it is ensured that a welding area keeps flatness and dimensional stability at the high temperature.

Description

Technical Field

[0001] This utility model relates to a welding fixture for anti-deformation water-cooled plates based on friction stir welding. Background Technology

[0002] With the rapid development of new energy vehicles, energy storage systems, and high-power electronic devices, water-cooled plates, as core components for efficient heat dissipation, are facing increasingly higher demands for manufacturing precision and reliability. Friction stir welding (FSW) technology, due to its advantages such as the absence of fusion defects and low residual stress, has gradually become the preferred process for connecting the flow channel cover plate and the substrate of water-cooled plates. However, the intense frictional heat and mechanical pressure generated during the welding process can easily lead to localized deformation of the plate, especially when welding thin-walled water-cooled plates, where the deformation problem is more pronounced. This deformation not only affects the sealing performance of the flow channel but also reduces the overall heat dissipation efficiency and may even cause assembly failure. Therefore, this invention proposes a deformation-resistant water-cooled plate welding fixture based on friction stir welding to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a welding fixture for anti-deformation water-cooled plates based on friction stir welding, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A welding fixture for anti-deformation water-cooled plate based on friction stir welding includes a fixed plate, on which two sets of clamping plates with relative displacement are provided, and the two sets of clamping plates are symmetrically arranged.

[0006] The fixed plate is provided with two sets of movable blocks that can be moved. Two sets of limiting plates are provided between the two sets of movable blocks. The limiting plates are provided with lifting components and limiting rollers. The lifting components cooperate with the limiting rollers to make the limiting rollers move toward the fixed plate for pressing and limiting.

[0007] As an improvement to the above technical solution, a drive groove is provided on the fixing plate, a drive assembly is provided on the drive groove, and T-shaped grooves are provided on both sides of the drive groove.

[0008] The clamping plate is provided with a driving block, and T-shaped blocks are provided on both sides of the clamping plate. The two sets of T-shaped blocks are adapted to the two sets of T-shaped slots.

[0009] As an improvement to the above technical solution, the drive assembly includes two sets of drive plates, which are respectively disposed on both sides of the drive groove, and the drive plates are connected to the fixing plate by bolts.

[0010] A drive screw is rotatably disposed between the two sets of drive plates. The drive block is provided with a drive threaded hole. The drive threaded holes of the two sets of drive blocks have opposite thread directions. The drive threaded hole is threaded onto the outer wall of the drive screw.

[0011] As an improvement to the above technical solution, a first drive servo motor is provided on a set of the drive boards, and the first drive servo motor is connected to the drive screw drive.

[0012] As an improvement to the above technical solution, two sets of movable grooves are provided on both sides of the fixed plate, and the movable block is slidably disposed in the movable grooves;

[0013] A movable screw is rotatably disposed in the movable groove, and a movable threaded hole is provided on the movable block, which is threaded onto the outer wall of the movable screw.

[0014] As an improvement to the above technical solution, the fixed plate is provided with two sets of second drive servo motors, which are respectively connected to two sets of movable screws.

[0015] As an improvement to the above technical solution, a connecting plate is provided between the limiting plate and the movable block;

[0016] The limiting plate has two sets of lifting threaded holes, and the lifting assembly is disposed between the two sets of lifting threaded holes.

[0017] As an improvement to the above technical solution, the lifting assembly includes two sets of lifting screws, and the two sets of lifting screws are respectively threadedly connected to two sets of lifting threaded holes;

[0018] A connecting rod is rotatably mounted on the lifting screw, and the limiting roller is rotatably mounted between two sets of connecting rods.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] The movable block drives the limiting plate to move synchronously along the welding path. Combined with the lifting component, the limiting roller is driven to apply real-time pressing force to the surface of the water-cooled plate flow channel cover plate, which effectively suppresses local deformation caused by heat input during the welding process. The limiting roller rolls and presses with the movement of the stirring head to form continuous dynamic constraints, ensuring that the welding area maintains flatness and dimensional stability at high temperatures.

[0021] The limiting roller adopts a rolling contact method, which reduces frictional damage to the workpiece surface during the pressing process. At the same time, the lifting component structure achieves uniform pressure distribution, avoids local stress concentration, ensures the consistency of weld joint formation, and significantly improves weld strength and sealing performance. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram showing the positions of the fixing plate and the drive assembly of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the drive component of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the fixing plate of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the clamping plate of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the movable block of this utility model;

[0028] Figure 7 This is a schematic diagram of the lifting component of this utility model.

[0029] In the diagram: 10. Fixed plate; 11. Clamping plate; 12. Movable groove; 13. Drive groove; 14. T-slot; 15. T-block; 16. Drive block; 17. Drive threaded hole; 20. Movable block; 21. Limiting plate; 22. Movable threaded hole; 23. Lifting threaded hole; 24. Connecting plate; 30. Lifting assembly; 31. Lifting screw; 32. Connecting rod; 40. Limiting roller; 50. Drive assembly; 51. Drive screw; 52. Drive plate; 53. First drive servo motor; 60. Movable screw; 61. Second drive servo motor. Detailed Implementation

[0030] 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 protection scope of the present utility model.

[0031] Example:

[0032] like Figure 1-7 As shown, this embodiment proposes a welding fixture for anti-deformation water-cooled plates based on friction stir welding, including a fixed plate 10, on which two sets of clamping plates 11 with relative displacement are provided, and the two sets of clamping plates 11 are symmetrically arranged.

[0033] The fixed plate 10 is provided with two sets of movable blocks 20 that can be moved. Two sets of limiting plates 21 are provided between the two sets of movable blocks 20. The limiting plates 21 are provided with lifting components 30 and limiting rollers 40. The lifting components 30 cooperate with the limiting rollers 40 to make the limiting rollers 40 move toward the fixed plate 10 for pressing and limiting.

[0034] In this embodiment, when friction welding the water-cooled plate, the water-cooled plate substrate and the water-cooled plate flow channel cover are placed on the fixed plate 10 from bottom to top and clamped and fixed by two sets of clamping plates 11. Then, the movable block 20 drives the two sets of limiting plates 21 to move until the limiting roller 40 moves to the surface of the water-cooled plate flow channel cover. The lifting component 30 drives the limiting roller 40 to contact the surface of the water-cooled plate flow channel cover. Then, the stirring head for friction welding is inserted between the two sets of limiting rollers 40. When the stirring head moves along the long side of the fixed plate 10 to adjust the welding position, the limiting roller 40 moves with the stirring head to press the welding area.

[0035] The movable block 20 drives the limiting plate 21 to move synchronously along the welding path. Combined with the lifting component 30 driving the limiting roller 40 to apply real-time pressing force to the surface of the water-cooled plate flow channel cover plate, it effectively suppresses local deformation caused by heat input during the welding process. The limiting roller 40 rolls and presses with the movement of the stirring head to form continuous dynamic constraints, ensuring that the welding area maintains flatness and dimensional stability at high temperature.

[0036] The limiting roller 40 adopts a rolling contact method, which reduces frictional damage to the workpiece surface during the pressing process. At the same time, the lifting component 30 structure achieves uniform pressure distribution, avoids local stress concentration, ensures the consistency of weld joint formation, and significantly improves weld strength and sealing performance.

[0037] Specifically, the fixed plate 10 is provided with a drive groove 13, the drive groove 13 is provided with a drive assembly 50, and T-shaped grooves 14 are provided on both sides of the drive groove 13.

[0038] A drive block 16 is provided on the clamping plate 11, and T-shaped blocks 15 are provided on both sides of the clamping plate 11. The two sets of T-shaped blocks 15 are adapted to the two sets of T-shaped grooves 14.

[0039] Specifically, the drive assembly 50 includes two sets of drive plates 52, which are respectively disposed on both sides of the drive groove 13, and the drive plates 52 are connected to the fixing plate 10 by bolts.

[0040] A drive screw 51 is rotatably disposed between the two sets of drive plates 52. A drive threaded hole 17 is provided on the drive block 16. The drive threaded holes 17 of the two sets of drive blocks 16 have opposite thread directions. The drive threaded hole 17 is threadedly sleeved on the outer wall of the drive screw 51.

[0041] Specifically, a first drive servo motor 53 is provided on a set of drive boards 52, and the first drive servo motor 53 is connected to the drive screw 51 for transmission.

[0042] In this embodiment, when fixing the water-cooled plate substrate and the water-cooled plate flow channel cover, the water-cooled plate substrate and the water-cooled plate flow channel cover are placed on the fixing plate 10. Then, the first drive servo motor 53 is started, causing the drive screw 51 to rotate. Through the threaded engagement of the drive screw 51 with the drive threaded hole 17, the clamping plate 11 is displaced. Since the thread directions of the two sets of drive threaded holes 17 are opposite, the clamping plate 11 can be displaced towards the center of the fixing plate 10 at the same time until it contacts the water-cooled plate substrate and the water-cooled plate flow channel cover, thereby completing the clamping process.

[0043] Specifically, the fixed plate 10 has two sets of movable grooves 12 on both sides, and the movable block 20 is slidably disposed in the movable grooves 12;

[0044] A movable screw 60 is rotatably disposed in the movable groove 12, and a movable threaded hole 22 is provided on the movable block 20, which is threaded onto the outer wall of the movable screw 60.

[0045] Specifically, the fixed plate 10 is provided with two sets of second drive servo motors 61, and the two sets of second drive servo motors 61 are respectively connected to two sets of movable screws 60.

[0046] In this embodiment, when the limiting roller 40 moves with the stirring head, the second drive servo motor 61 starts and drives the movable screw 60 to rotate. Through the threaded engagement between the movable screw 60 and the movable threaded hole 22, the movable block 20 moves in the movable groove 12, thereby driving the limiting roller 40 to move and adjust the position of the pressing limit.

[0047] Specifically, a connecting plate 24 is provided between the limiting plate 21 and the movable block 20;

[0048] The limiting plate 21 has two sets of lifting threaded holes 23, and the lifting assembly 30 is disposed between the two sets of lifting threaded holes 23.

[0049] Specifically, the lifting assembly 30 includes two sets of lifting screws 31, which are respectively threaded into two sets of lifting threaded holes 23;

[0050] A connecting rod 32 is rotatably mounted on the lifting screw 31, and the limiting roller 40 is rotatably mounted between the two sets of connecting rods 32.

[0051] In this embodiment, when the limiting roller 40 is raised or lowered, the lifting screw 31 is rotated. Through the cooperation between the lifting screw 31 and the lifting threaded hole 23, the limiting roller 40 is raised or lowered along the axial direction of the lifting screw 31.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for anti-deformation water-cooled plates based on friction stir welding, characterized in that: Includes a fixed plate (10), on which two sets of clamping plates (11) with relative displacement are provided, and the two sets of clamping plates (11) are symmetrically arranged; The fixed plate (10) is provided with two sets of movable blocks (20) that can be moved. Two sets of limiting plates (21) are provided between the two sets of movable blocks (20). The limiting plate (21) is provided with a lifting component (30). The limiting plate (21) is also provided with a limiting roller (40). The lifting component (30) cooperates with the limiting roller (40) so that the limiting roller (40) moves toward the fixed plate (10) to press and limit.

2. The anti-deformation water-cooled plate welding fixture based on friction stir welding according to claim 1, characterized in that: The fixed plate (10) is provided with a drive groove (13), a drive assembly (50) is provided on the drive groove (13), and T-shaped grooves (14) are provided on both sides of the drive groove (13). The clamping plate (11) is provided with a driving block (16), and T-shaped blocks (15) are provided on both sides of the clamping plate (11). The two sets of T-shaped blocks (15) are adapted to the two sets of T-shaped grooves (14).

3. The anti-deformation water-cooled plate welding fixture based on friction stir welding according to claim 2, characterized in that: The drive assembly (50) includes two sets of drive plates (52), which are respectively disposed on both sides of the drive groove (13). The drive plates (52) are connected to the fixing plate (10) by bolts. A drive screw (51) is rotatably disposed between the two sets of drive plates (52), and a drive thread hole (17) is provided on the drive block (16). The drive thread holes (17) of the two sets of drive blocks (16) have opposite thread directions, and the drive thread hole (17) is threaded onto the outer wall of the drive screw (51).

4. The anti-deformation water-cooled plate welding fixture based on friction stir welding according to claim 3, characterized in that: A first drive servo motor (53) is provided on a set of drive boards (52), and the first drive servo motor (53) is connected to the drive screw (51) for transmission.

5. The anti-deformation water-cooled plate welding fixture based on friction stir welding according to claim 1, characterized in that: The fixed plate (10) has two sets of movable slots (12) on both sides, and the movable block (20) is slidably disposed in the movable slots (12); A movable screw (60) is rotatably disposed in the movable groove (12), and a movable threaded hole (22) is provided on the movable block (20), which is threaded onto the outer wall of the movable screw (60).

6. The anti-deformation water-cooled plate welding fixture based on friction stir welding according to claim 5, characterized in that: The fixed plate (10) is provided with two sets of second drive servo motors (61), and the two sets of second drive servo motors (61) are respectively connected to two sets of movable screws (60).

7. The anti-deformation water-cooled plate welding fixture based on friction stir welding according to claim 1, characterized in that: A connecting plate (24) is provided between the limiting plate (21) and the movable block (20); The limiting plate (21) has two sets of lifting threaded holes (23), and the lifting component (30) is disposed between the two sets of lifting threaded holes (23).

8. The anti-deformation water-cooled plate welding fixture based on friction stir welding according to claim 7, characterized in that: The lifting assembly (30) includes two sets of lifting screws (31), which are threadedly connected to two sets of lifting threaded holes (23). A connecting rod (32) is rotatably mounted on the lifting screw (31), and the limiting roller (40) is rotatably mounted between the two sets of connecting rods (32).

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