Radiator core brazing fixing tool

By using an improved radiator core brazing fixture, the radiator core is securely fixed by the combination of a bidirectional threaded rod and a threaded sleeve. This solves the problem of cumbersome and time-consuming operation caused by multiple sets of support rods and nuts in the existing technology, and improves production efficiency and core stability.

CN224222917UActive Publication Date: 2026-05-12ANHUI MILITARY AEROSPACE PRECISION EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI MILITARY AEROSPACE PRECISION EQUIPMENT CO LTD
Filing Date
2025-06-10
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing radiator core brazing fixtures, the redundant use of multiple sets of support rods and nuts makes the fixing operation cumbersome and time-consuming, affecting production efficiency.

Method used

采用双向螺纹杆与螺纹套配合,通过调节块、滑块、导向杆、螺纹杆和挤压块的协同作用,实现散热器芯体的稳固固定,减少支撑杆和螺母的使用。

Benefits of technology

简化了散热器芯体的固定过程,提高了钎焊效率,确保了芯体在工装上的稳定性和洁净度。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of radiator core brazing, and particularly relates to a radiator core brazing fixing tool which comprises a base, two adjusting blocks are symmetrically arranged at the top end of the base, and a two-way threaded rod is assembled in the base. The distance between the two adjusting blocks can be adjusted through matching of the two-way threaded rod and the threaded sleeve, and alignment of the left side and the right side of a radiator core body is achieved. And then, through the synergistic effect of a sliding block, a first guide rod, a butt joint block, a first threaded rod, a second threaded rod and an adjusting sleeve, the distance between the two clamping blocks can be flexibly adjusted, and it is ensured that the front end and the rear end of the radiator core are aligned. Finally, through linkage cooperation of the extrusion block, the third threaded rod and the fixing block, reliable clamping force is formed between the descending extrusion block and the base, the radiator core is stably fixed to the tool, in this way, the stability of the radiator core on the fixing tool is guaranteed, and the production efficiency is improved. And meanwhile, the problem that the brazing efficiency is influenced by complexity and long time of adopting multiple groups of supporting rods and nuts is also reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of radiator core brazing technology, specifically relating to a radiator core brazing fixing fixture. Background Technology

[0002] The radiator core, as the core component of the radiator, mainly consists of heat pipes, fins, and manifolds. The heat pipes are long and thin tubular structures that carry out the function of transporting heat medium and transferring heat. Their shape, size, and arrangement affect the heat dissipation efficiency. The fins are closely attached to the heat pipes, improving the heat dissipation effect by increasing the heat dissipation area and optimizing airflow. The manifolds are responsible for collecting and distributing the heat medium to ensure uniform heat dissipation.

[0003] Currently, radiator cores are generally connected using brazing. This process requires fixtures to secure the heat pipes and fins. However, current mainstream fixture designs have significant drawbacks: most employ a combination of support rods and nuts for fixing. Specifically, multiple sets of support rods and nuts work together to clamp the fixing plate to the outer wall of the radiator core, achieving the desired fixation. It's worth noting that this fixing method typically requires at least four sets of support rods and nuts. This redundant use of multiple sets of nuts and support rods not only greatly increases the complexity of fixing the radiator core but also significantly prolongs the fixing process, negatively impacting production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a brazing fixture for radiator cores, aiming to solve the problem of existing technologies that mostly use a combination of support rods and nuts for fixing. Specifically, multiple sets of support rods and nuts work together to clamp the fixing plate to the outer wall of the radiator core, thereby achieving the fixing effect. It is worth noting that this fixing method typically requires at least four sets of support rods and nuts. The redundant use of multiple sets of nuts and support rods not only greatly increases the complexity of the radiator core fixing operation but also significantly prolongs the fixing time, negatively impacting production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a radiator core brazing fixing fixture, comprising a base, two adjusting blocks symmetrically arranged at the top of the base, a bidirectional threaded rod assembled inside the base, two threaded sleeves symmetrically threaded on the surface of the bidirectional threaded rod, the threaded sleeves being connected to the adjusting blocks, clamping blocks arranged on the corresponding sidewalls of the two adjusting blocks, two sliders symmetrically slidably connected inside the adjusting blocks, a first guide rod installed inside the adjusting blocks, a mating block connected at the top of the two sliders, a first threaded rod and a second threaded rod connected on the corresponding sidewalls of the two mating blocks, an adjusting sleeve connected between the first threaded rod and the second threaded rod, a fixing block installed on the corresponding sidewalls of the two adjusting blocks, a third threaded rod threadedly connected through the surface of the fixing block, and a pressing block installed at the end of the third threaded rod.

[0006] As a preferred embodiment of the radiator core brazing and fixing fixture of this utility model, the bidirectional threaded rod can be rotatably connected to the base through a bearing, and the adjusting block can be threadedly moved with the bidirectional threaded rod through a threaded sleeve.

[0007] As a preferred embodiment of the radiator core brazing fixing fixture of this utility model, the threads on the surfaces of the first threaded rod and the second threaded rod are opposite, and the clamping block can form a threaded movement with the base through the slider, the first guide rod, the docking block, the first threaded rod, the second threaded rod and the adjusting sleeve.

[0008] As a preferred embodiment of the radiator core brazing and fixing fixture of this utility model, the extrusion block can be connected to the base in a lifting manner through the third threaded rod and the fixing block.

[0009] As a preferred embodiment of the radiator core brazing and fixing fixture of this utility model, a support block is installed at one end of the base, a brush plate is provided on the inner side wall of the support block, a pull rod and a second guide rod are connected to the end of the brush plate near the support block, and a spring is sleeved on the surface of the brush plate.

[0010] As a preferred embodiment of the radiator core brazing and fixing fixture of this utility model, the brush plate is connected to the pull rod, and the brush plate can be elastically telescopically connected to the support block through the pull rod and the spring.

[0011] As a preferred embodiment of the radiator core brazing and fixing fixture of this utility model, the brush plate can form a linear reciprocating motion with the support block through the second guide rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By using the combination of the bidirectional threaded rod and the threaded sleeve, the distance between the two adjusting blocks can be adjusted to align the left and right sides of the radiator core. Subsequently, through the coordinated action of the slider, the first guide rod, the mating block, the first threaded rod, the second threaded rod, and the adjusting sleeve, the distance between the two clamping blocks can be flexibly adjusted to ensure the alignment of the front and rear ends of the radiator core. Finally, through the linkage of the pressing block, the third threaded rod, and the fixing block, the descending pressing block and the base form a reliable clamping force, firmly fixing the radiator core to the fixture. This ensures the stability of the radiator core on the fixture and also reduces the cumbersome and time-consuming process of using multiple sets of support rods and nuts, which affects brazing efficiency.

[0014] Through the coordinated mechanism of the brush plate, pull rod, spring, and support block, the brush plate can move flexibly in the top area of ​​the base, thereby effectively cleaning the top surface of the base. This prevents dust accumulation on the base surface from interfering with the proper placement of the radiator core, ensuring the cleanliness and stability of the radiator core's placement environment. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0017] Figure 2 This is a partial sectional view of the main structure of the present utility model;

[0018] Figure 3 This is a cross-sectional view of the adjusting block structure of this utility model;

[0019] Figure 4 This is a cross-sectional view of the connection structure of the first threaded rod, the second threaded rod, and the adjusting sleeve of this utility model.

[0020] In the diagram: 1. Base; 2. Adjusting block; 3. Bidirectional threaded rod; 4. Threaded sleeve; 5. Clamping block; 6. Slider; 7. First guide rod; 8. Connecting block; 9. First threaded rod; 10. Second threaded rod; 11. Adjusting sleeve; 12. Fixing block; 13. Third threaded rod; 14. Extrusion block; 15. Support block; 16. Pull rod; 17. Spring; 18. Second guide rod; 19. Brush plate. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 This utility model provides the following technical solution: a radiator core brazing fixing fixture, including a base 1, two adjusting blocks 2 symmetrically arranged at the top of the base 1, a bidirectional threaded rod 3 assembled inside the base 1, two threaded sleeves 4 symmetrically threaded on the surface of the bidirectional threaded rod 3, the threaded sleeves 4 connected to the adjusting blocks 2, clamping blocks 5 arranged on the corresponding side walls of the two adjusting blocks 2, two sliders 6 symmetrically slidably connected inside the adjusting blocks 2, a first guide rod 7 installed inside the adjusting blocks 2, a mating block 8 connected at the top of the two sliders 6, a first threaded rod 9 and a second threaded rod 10 connected on the corresponding side walls of the two mating blocks 8, an adjusting sleeve 11 connected between the first threaded rod 9 and the second threaded rod 10, a fixing block 12 installed on the corresponding side walls of the two adjusting blocks 2, a third threaded rod 13 threadedly connected through the surface of the fixing block 12, and a pressing block 14 installed at the end of the third threaded rod 13.

[0023] Preferably, the bidirectional threaded rod 3 can be rotatably connected to the base 1 via a bearing, and the adjusting block 2 can be threadedly moved with the bidirectional threaded rod 3 via a threaded sleeve 4.

[0024] In practical use, the operator first places the radiator core stably in the designated position on the base 1, at which point the radiator core is precisely within the space formed by the two adjusting blocks 2. Then, the operator manually rotates the bidirectional threaded rod 3. This bidirectional threaded rod 3 forms a stable and smooth rotational connection with the base 1 via the inner ring of the bearing, ensuring the smoothness of the rotation process. As the bidirectional threaded rod 3 rotates, the threaded sleeve 4 moves along the threads on the surface of the bidirectional threaded rod 3. The threaded sleeve 4 is adapted to the reserved space on the top surface of the base 1, and the threaded sleeve 4 does not rotate with the bidirectional threaded rod 3 during its movement. Finally, the linear movement of the threaded sleeve 4 causes the two adjusting blocks 2 to move closer together. Through the approaching action of the two adjusting blocks 2, the left and right sides of the radiator core are aligned.

[0025] Preferably, the threads on the surfaces of the first threaded rod 9 and the second threaded rod 10 are opposite, and the clamping block 5 can form a threaded motion with the base 1 through the slider 6, the first guide rod 7, the mating block 8, the first threaded rod 9, the second threaded rod 10 and the adjusting sleeve 11.

[0026] In practical use, when the operator rotates the adjusting sleeve 11, based on the threaded connection between the adjusting sleeve 11 and the first threaded rod 9 and the second threaded rod 10, the first threaded rod 9 and the second threaded rod 10 will generate linear motion along the axial direction of the adjusting sleeve 11, that is, gradually retract into the interior of the adjusting sleeve 11. As the first threaded rod 9 and the second threaded rod 10 move axially, the connecting blocks 8 connected to them move closer to each other under the action of force transmission. The approaching action of the connecting blocks 8 further drives the slider 6 to slide linearly along the surface of the first guide rod 7. Finally, the movement of the slider 6 causes the clamping blocks 5 to move closer to each other, and the alignment of the front and rear ends of the radiator core is achieved through the relative movement of the clamping blocks 5.

[0027] Preferably, the compression block 14 can be connected to the base 1 in a lifting manner through the third threaded rod 13 and the fixing block 12.

[0028] In practical use, when the operator rotates the third threaded rod 13 to lower it, the third threaded rod 13 will drive the pressing block 14 to descend. Then, the pressing block 14 descends and contacts the top of the radiator core. Thus, the pressing block 14 and the base 1 form a reliable clamping force, which firmly fixes the radiator core to the tooling.

[0029] In summary, when the radiator core is used with this fixing fixture, it not only ensures the stability of the radiator core on the fixing fixture, but also reduces the cumbersome and time-consuming problem of using multiple sets of support rods and nuts, which affects the brazing efficiency.

[0030] Preferably, a support block 15 is installed at one end of the base 1, a brush plate 19 is provided on the inner side wall of the support block 15, a pull rod 16 and a second guide rod 18 are connected to one end of the brush plate 19 near the support block 15, and a spring 17 is sleeved on the surface of the brush plate 19.

[0031] In practical use, when the operator pushes the lever 16 towards the support block 15, its brush plate 19 will move flexibly in the top area of ​​the base 1, thereby effectively cleaning the top surface of the base 1. This prevents dust accumulation on the surface of the base 1 from interfering with the normal placement of the radiator core, ensuring the cleanliness and stability of the radiator core placement environment.

[0032] Preferably, the brush plate 19 is connected to the pull rod 16, and the brush plate 19 can be elastically telescopically connected to the support block 15 through the pull rod 16 and the spring 17.

[0033] In actual use, the operator can move the brush plate 19 flexibly in the top area of ​​the base 1 by pulling the lever 16. This facilitates operation.

[0034] Preferably, the brush plate 19 can form a linear reciprocating motion with the support block 15 through the second guide rod 18.

[0035] In actual use, when the operator moves the brush plate 19, its second guide rod 18 ensures the stability of the movement of the brush plate 19 and prevents the brush plate 19 from rotating, which would affect the normal use of the brush plate 19.

[0036] Operating principle: The operator first places the radiator core stably in the designated position on the base 1, positioning it within the space between the two adjusting blocks 2. Then, the operator manually rotates the bidirectional threaded rod 3. This rod is stably and smoothly connected to the base 1 via the inner ring of the bearing, ensuring smooth rotation. During rotation, the threaded sleeve 4 moves along the threads on the surface of the bidirectional threaded rod 3. Because its size is adapted to the reserved space at the top of the base 1, it does not rotate with the rod during movement. The linear movement of the threaded sleeve 4 causes the two adjusting blocks 2 to move closer together, aligning the left and right sides of the radiator core.

[0037] Next, the adjusting sleeve 11 is rotated. Based on its threaded connection with the first threaded rod 9 and the second threaded rod 10, the two threaded rods move linearly along the axial direction of the adjusting sleeve 11 and gradually retract into the adjusting sleeve 11. The axial movement causes the docking block 8 to move closer, which in turn causes the slider 6 to slide linearly along the surface of the first guide rod 7, and finally causes the clamping block 5 to move closer, realizing the alignment of the front and rear ends of the radiator core.

[0038] Subsequently, the operator rotates the third threaded rod 13 to lower it, causing the pressing block 14 to descend and contact the top of the radiator core. The pressing block 14 and the base 1 form a reliable clamping force, firmly fixing the radiator core to the fixture. This design not only ensures the stability of the radiator core on the fixture, but also avoids the cumbersome operation and excessive time consumption caused by multiple sets of support rods and nuts, thus improving brazing efficiency.

[0039] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A brazing fixture for fixing a radiator core, comprising a base (1), characterized in that: The base (1) has two adjusting blocks (2) symmetrically arranged at its top. The base (1) is equipped with a bidirectional threaded rod (3). The surface of the bidirectional threaded rod (3) is symmetrically threaded with two threaded sleeves (4). The threaded sleeves (4) are connected to the adjusting blocks (2). The side walls of the two adjusting blocks (2) are provided with clamping blocks (5). The interior of the adjusting blocks (2) is symmetrically slidably connected with two sliders (6). The interior of the adjusting blocks (2) is equipped with a first guide rod (7). The top ends of the two sliders (6) are connected to the mating blocks (8), the corresponding side walls of the two mating blocks (8) are connected to the first threaded rod (9) and the second threaded rod (10), the first threaded rod (9) and the second threaded rod (10) are connected to the adjusting sleeve (11), the corresponding side walls of the two adjusting blocks (2) are equipped with the fixing blocks (12), the surface of the fixing blocks (12) is threaded through and connected to the third threaded rod (13), and the end of the third threaded rod (13) is equipped with the pressing block (14).

2. The radiator core brazing fixing fixture according to claim 1, characterized in that: The bidirectional threaded rod (3) can be rotatably connected to the base (1) through a bearing, and the adjusting block (2) can be threadedly connected to the bidirectional threaded rod (3) through a threaded sleeve (4).

3. The radiator core brazing fixing fixture according to claim 1, characterized in that: The threads on the surfaces of the first threaded rod (9) and the second threaded rod (10) are opposite. The clamping block (5) can form a threaded motion with the base (1) through the slider (6), the first guide rod (7), the docking block (8), the first threaded rod (9), the second threaded rod (10) and the adjusting sleeve (11).

4. The radiator core brazing fixing fixture according to claim 1, characterized in that: The compression block (14) can be connected to the base (1) in a lifting manner through the third threaded rod (13) and the fixing block (12).

5. The radiator core brazing fixing fixture according to claim 1, characterized in that: A support block (15) is installed at one end of the base (1). A brush plate (19) is provided on the inner side wall of the support block (15). A pull rod (16) and a second guide rod (18) are connected to one end of the brush plate (19) near the support block (15). A spring (17) is sleeved on the surface of the brush plate (19).

6. The radiator core brazing fixing fixture according to claim 5, characterized in that: The brush plate (19) is connected to the pull rod (16), and the brush plate (19) can be elastically telescopically connected to the support block (15) through the pull rod (16) and the spring (17).

7. The radiator core brazing fixing fixture according to claim 5, characterized in that: The brush plate (19) can reciprocate linearly with the support block (15) via the second guide rod (18).