Vacuum brazing tool for aluminum alloy cooling part

Abstract

The utility model relates to the technical field of vacuum brazing, in particular to an aluminum alloy cooling part vacuum brazing tool which comprises a bottom plate, a first pressing plate, a second pressing plate, a second pressing column, a third pressing plate, a third pressing column, a pressing strip and a first pressing column. A first pressing column and a second pressing column which are matched with the first water inlet pipe and the second water inlet pipe respectively are installed on the first water inlet pipe and the second water inlet pipe respectively, a third pressing plate is fixedly connected with the second pressing plate to press the second pressing column, and a third pressing column matched with a straight pipe on the upper portion of the first water inlet pipe is installed above the first pressing column. A pressing strip is fixedly connected with the second pressing plate to press the third pressing column. According to the vacuum brazing tool for the aluminum alloy cooling part, it is guaranteed that all welding faces can be effectively pressed and fixed; the problem that a traditional single tool cannot press a plurality of welding faces with different outlines at the same time is solved, and an effective clamping scheme is provided for vacuum brazing of complex parts.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum brazing technical field, concretely relates to an aluminium alloy cooling part vacuum brazing frock. BACKGROUND

[0002] In the field of semiconductor device manufacturing, aluminum alloy cooling parts are widely used due to their excellent thermal conductivity and lightweight characteristics. These parts often have complex structures, typically including cooling water pipes and multiple inlet and outlet water structure assemblies with different profiles. Due to the diversity and complexity of these assemblies, high welding quality is required.

[0003] Vacuum brazing, as an advanced welding technology, is favored because it can achieve high-quality welding in a vacuum environment. During vacuum brazing, the filler metal is pre-positioned on the welding surface of the part, and then the part is tightly fixed by a fixture. Subsequently, the high-temperature environment of the vacuum brazing furnace melts the filler metal, thereby achieving the welding of the part. However, the design and selection of the fixture play a crucial role in this process.

[0004] For parts with simple structures and consistent profiles of welding assemblies, a single stainless steel fixture can achieve good compression and fixation, ensuring welding quality. However, for aluminum alloy cooling parts with complex structures, multiple assemblies, and different profiles of each assembly, a single fixture cannot meet the needs of simultaneously compressing multiple welding surfaces, such as Figure 11 As shown in the figure, the aluminum alloy cooling part 2 is composed of a part bottom plate 21 and a part cover plate 22, and the part cover plate 22 is provided with a cooling water pipe 23, an inlet pipe one 24, an inlet pipe two 25, and an outlet 26. Among them, the inlet pipe one 24 and the inlet pipe two 25 are welded on the part cover plate 22 by vacuum brazing. This often leads to poor welding, poor sealing, or leakage during welding, which seriously affects the quality and reliability of the product.

[0005] To solve this problem, multiple welding methods are usually required, i.e., separate compression and welding for each welding surface. However, this method not only has low efficiency, but also increases production cost and quality control difficulty. Therefore, there is an urgent need for a vacuum brazing fixture that can adapt to complex structures and simultaneously compress multiple welding surfaces with different profiles to improve production efficiency and ensure welding quality. SUMMARY

[0006] To solve the above problems, the utility model provides an aluminum alloy cooling part vacuum brazing frock, which ensures that each welding surface can be effectively compressed and fixed; solves the problem that traditional single fixtures cannot simultaneously compress multiple welding surfaces with different profiles, providing an effective clamping solution for vacuum brazing of complex parts.

[0007] The technical scheme of the utility model discloses the following:

[0008] An aluminium alloy cooling part vacuum brazing tool, the aluminium alloy cooling part is composed of a part bottom plate and a part cover plate, water inlet pipe one and water inlet pipe two are vacuum brazed on the part cover plate, water inlet pipe one and water inlet pipe two are both composed of two straight pipes, the outer diameter of the upper straight pipe of water inlet pipe one is less than the outer diameter of the lower straight pipe, the outer diameter of the upper straight pipe of water inlet pipe two is greater than the outer diameter of the lower straight pipe, the aluminium alloy cooling part vacuum brazing tool includes a bottom plate, a pressing plate one, a pressing plate two, a pressing column two, a pressing plate three, a pressing column three, a pressing strip and a pressing column one, the part bottom plate is placed on the bottom plate, the pressing plate one is fixedly connected with the bottom plate to press the part cover plate, the pressing column one and the pressing column two that are matched with water inlet pipe one and water inlet pipe two respectively are installed on water inlet pipe one and water inlet pipe two respectively, the pressing plate three is fixedly connected with the pressing plate two to press the pressing column two, the pressing column three that is matched with the upper straight pipe of water inlet pipe one is installed above the pressing column one, and the pressing strip is fixedly connected with the pressing plate two to press the pressing column three.

[0009] The bottom plate, the pressing plate one, the pressing plate two, the pressing plate three and the pressing strip are fixedly connected with each other through screw rods.

[0010] The bottom plate is provided with two circles of through holes, and the screw rods pass through the through holes to connect and fix the bottom plate with the pressing plate one and the pressing plate two respectively.

[0011] The pressing plate one needs to be smaller than the bottom plate in outer dimension, is provided with a circle of through holes corresponding to the inner circle of through holes of the bottom plate and used for installing screw rods, and is provided with an avoiding hole at a center position.

[0012] The pressing plate two is consistent with the bottom plate in outer dimension, is provided with two circles of through holes corresponding to the positions of the two circles of through holes of the bottom plate and used for placing screw rods, and is provided with an avoiding hole and a plurality of threaded holes at a center position.

[0013] The pressing column one is a two-half structure.

[0014] The pressing column two is a two-half structure.

[0015] The pressing column three is a ring-shaped cylinder.

[0016] The pressing plate three is a circular structure and is provided with a through hole corresponding to the center threaded hole of the pressing plate two and used for placing a screw rod.

[0017] The pressing strip is a rectangular contour and is provided with a through hole corresponding to the center threaded hole of the pressing plate two and used for placing a screw rod.

[0018] The utility model discloses the beneficial effect lies in:

[0019] 1. The aluminum alloy cooling part vacuum brazing tool of the utility model discloses an effective clamping scheme, the tool of the utility model is specially designed for the aluminum alloy cooling part with complex structure, multiple components and different profiles, through the combined use of the base plate, the pressing plate one, the pressing plate two, the pressing plate three, the pressing column one, the pressing column two, the pressing column three and the pressing strip and other components, it is ensured that each welding surface can be effectively pressed and fixed, the problem that traditional single tool cannot press multiple different profile welding surfaces at the same time is solved, and an effective clamping scheme is provided for the vacuum brazing of complex parts.

[0020] 2. The aluminum alloy cooling part vacuum brazing tool of the utility model improves welding quality and production efficiency, because the tool can press multiple welding surfaces at the same time and has good pressing effect, welding defects such as poor welding, poor sealing or leakage can be significantly reduced, and the welding quality is improved, meanwhile, the tool avoids the need for multiple welding, reduces production cost, improves production efficiency, and has significant economic benefits for aluminum alloy cooling parts that need to be mass-produced.

[0021] 3. The aluminum alloy cooling part vacuum brazing tool of the utility model can realize good rigidity and deformation control, the components of the tool are connected and fixed through fasteners such as screw rods, forming a stable structure system and having good rigidity, and the rigid structure can effectively resist deformation in the welding process, ensuring the size precision and shape stability of the parts after welding.

[0022] 4. The aluminum alloy cooling part vacuum brazing tool of the utility model, the components such as the pressing column one, the pressing column two and the pressing column three are designed as replaceable two-half structures or ring structures, and the outer profile can be customized according to the profile of the welding components to be pressed, so that the tool can adapt to aluminum alloy cooling parts of different shapes and sizes, improving the versatility and flexibility of the tool BRIEF DESCRIPTION OF DRAWINGS

[0023] The scheme and advantages of the present application will become clear to those skilled in the art from the detailed description of the preferred embodiments below. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered as limiting the utility model.

[0024] In the drawings:

[0025] Figure 1 It is a perspective structural schematic view of the aluminum alloy cooling part vacuum brazing tool of the utility model embodiment.

[0026] Figure 2A cross section structure schematic view of the aluminum alloy cooling part vacuum brazing tool in use is provided in the embodiment of the utility model;

[0027] Figure 3 A three-dimensional structure schematic view of the bottom plate of the aluminum alloy cooling part vacuum brazing tool is provided in the embodiment of the utility model;

[0028] Figure 4 A three-dimensional structure schematic view of the pressing plate one of the aluminum alloy cooling part vacuum brazing tool is provided in the embodiment of the utility model;

[0029] Figure 5 A three-dimensional structure schematic view of the pressing plate two of the aluminum alloy cooling part vacuum brazing tool is provided in the embodiment of the utility model;

[0030] Figure 6 A three-dimensional structure schematic view of the pressing column one of the aluminum alloy cooling part vacuum brazing tool is provided in the embodiment of the utility model;

[0031] Figure 7 A three-dimensional structure schematic view of the pressing column two of the aluminum alloy cooling part vacuum brazing tool is provided in the embodiment of the utility model;

[0032] Figure 8 A three-dimensional structure schematic view of the pressing column three of the aluminum alloy cooling part vacuum brazing tool is provided in the embodiment of the utility model;

[0033] Figure 9 A three-dimensional structure schematic view of the pressing plate three of the aluminum alloy cooling part vacuum brazing tool is provided in the embodiment of the utility model;

[0034] Figure 10 A three-dimensional structure schematic view of the pressing strip of the aluminum alloy cooling part vacuum brazing tool is provided in the embodiment of the utility model;

[0035] Figure 11 A three-dimensional structure schematic view of the aluminum alloy cooling part is provided in the embodiment of the utility model;

[0036] The components represented by the respective reference numerals in the drawings are:

[0037] The utility model discloses: 1, bottom plate, 2, aluminum alloy cooling part, 21, part bottom plate, 22, part cover plate, 23, cooling water pipe, 24, water inlet pipe one, 25, water inlet pipe two, 26, water outlet, 3, pressing plate one, 4, pressing plate two, 5, pressing column two, 6, pressing plate three, 7, pressing column three, 8, pressing strip, 9, screw rod, 10, pressing column one. Specific implementation

[0038] The present embodiment relates to a kind of aluminum alloy cooling parts vacuum brazing tool, the tool is specially designed for the vacuum brazing of complex structure, containing multiple welding components and the profile of each component is different aluminum alloy cooling parts.As Figure 11 As shown in the figure, aluminum alloy cooling parts 2 is made of part bottom plate 21 and part cover plate 22, and water inlet pipe one 24 and water inlet pipe two 25 are vacuum brazed on part cover plate 22, both of which are composed of two straight pipes, wherein the outer diameter of the upper straight pipe of water inlet pipe one 24 is smaller than that of the lower straight pipe, and the outer diameter of the upper straight pipe of water inlet pipe two 25 is larger than that of the lower straight pipe.

[0039] As Figure 1 and Figure 2 As shown in the figure, the aluminum alloy cooling parts vacuum brazing tool includes bottom plate 1, pressing plate one 3, pressing plate two 4, pressing column one 10, pressing column two 5, pressing plate three 6, pressing column three 7, pressing strip 8 and screw rod 9 and other components.

[0040] Bottom plate 1: as the support base of the whole tool, as shown in the figure, bottom plate 1 is provided with two circles of through holes for connecting and fixing with pressing plate one 3 and pressing plate two 4 through screw rod 9. Figure 3

[0041] Pressing plate one 3: as shown in the figure, its outer dimensions are smaller than bottom plate 1, and it is provided with a circle of through holes corresponding to the inner circle of through holes of bottom plate 1 for installing screw rod 9. A relief hole is also opened in the center position of pressing plate one 3 for avoiding cooling water pipe and center to be welded small components. Figure 4

[0042] Pressing plate two 4: as shown in the figure, its outer dimensions are consistent with bottom plate 1, and it is provided with two circles of through holes corresponding to the position of through holes of bottom plate 1 for placing screw rod 9. A relief hole is also opened in the center position of pressing plate two 4, and it is provided with multiple threaded holes for connecting with pressing plate three 6 and pressing strip 8. Figure 5

[0043] Pressing column one 10: as shown in the figure, it is a two-half structure, and its outer profile is consistent with the profile of the welding component to be pressed (i.e. the lower straight pipe of water inlet pipe one 24), and it is placed on the welding small component after the two halves are buckled. Figure 6 Pressing column two 5: as shown in the figure, it is also a two-half structure, and its outer profile is consistent with the profile of the welding component to be pressed (i.e. water inlet pipe two 25), and a relief hole is also opened in the center for avoiding adjacent welding components (such as the upper straight pipe of water inlet pipe one 24).

[0044] Figure 7 Pressing column three 7: as shown in the figure, it is a ring cylindrical structure, which can be placed on pressing column one 10 through the gap between the welding component (such as the upper straight pipe of water inlet pipe one 24) and pressing column one 10.

[0045] Figure 8 ​​​​​​

[0046] Pressing plate three 6: as shown in the figure, it is a circular structure, provided with a through hole corresponding to the center threaded hole of pressing plate two 4, used for placing screw rod 9 and tightening to pressing plate two 4 to compress the lower pressing column two 5 and the welding assembly. Figure 9

[0047] Pressing strip 8: as shown in the figure, it is a rectangular structure, provided with a through hole corresponding to the center threaded hole of pressing plate two 4, used for placing screw rod 9 and tightening to pressing plate two 4 to compress the lower pressing column three 7 and the welding assembly. Figure 10

[0048] Screw rod 9: as a fastener connecting various assemblies, by passing through the through holes of the bottom plate, pressing plate and pressing column and other assemblies, and tightening with nuts, the assembly and compression of the whole tooling are realized.

[0049] The assembly and welding process is as follows:

[0050] Place the aluminum alloy part 2 on the bottom plate 1, ensuring that the part bottom plate 21 is in close contact with the bottom plate 1.

[0051] Place pressing plate one 3 on the large plane of the part, and pass screw rod 9 through the through hole of pressing plate one 3 and the inner circle through hole of bottom plate 1, and tighten with nuts to fix, compressing the lower part to be welded.

[0052] Place pressing plate two 4 on pressing plate one 3, and the inner circle through hole avoids the fixing screw rod of pressing plate one 3, and then pass screw rod 9 through the outer circle through hole and connect with the outer circle through hole of bottom plate 1, and tighten with nuts to fix.

[0053] Place pressing column one 10 and pressing column two 5 on the two small assemblies (i.e. the lower straight pipes of water inlet pipe one 24 and water inlet pipe two 25) to be welded in the center, and buckle tightly. Among them, the avoiding hole on the pressing column two 5 needs to avoid the position of the pressing column one 10.

[0054] Place pressing plate three 6 on pressing column two 5, and pass screw rod 9 through its through hole and tighten to the threaded hole at the center position of pressing plate two 4, and tighten with nuts to fix, compressing the lower part to be welded.

[0055] Place pressing column three 7 through the avoiding hole of pressing plate three 6 on pressing column one 10, and ensure that its height is higher than that of pressing plate three 6 after assembly.

[0056] Place pressing strip 8 on pressing column three 7, and pass screw rod 9 through the two through holes above and the avoiding hole of pressing plate three 6, and tighten to pressing plate two 4, and tighten with nuts to fix, compressing the lower part to be welded.

[0057] After completing the assembly of the whole tooling, the tooling and parts are put into the vacuum brazing furnace together for welding.

[0058] ​​The tooling realizes vacuum brazing clamping of aluminum alloy cooling parts with complex structure, multiple welding components and different component profiles through its unique design and component combination. The tooling can simultaneously press multiple welding positions to ensure good welding quality. In addition, the tooling avoids multiple welding methods due to different welding positions, improving production efficiency. At the same time, the rigidity of the tooling is good, and the deformation after welding is small, further ensuring the stability of the welding quality.

Claims

1. An aluminum alloy cooling part vacuum brazing tool, the aluminum alloy cooling part (2) is composed of a part bottom plate (21) and a part cover plate (22), a water inlet pipe one (24) and a water inlet pipe two (25) are vacuum brazed on the part cover plate (22), the water inlet pipe one (24) and the water inlet pipe two (25) are both composed of two straight pipes, the outer diameter of the upper straight pipe of the water inlet pipe one (24) is smaller than that of the lower straight pipe, and the outer diameter of the upper straight pipe of the water inlet pipe two (25) is larger than that of the lower straight pipe, characterized in that, The aluminum alloy cooling part vacuum brazing tool includes a bottom plate (1), a pressing plate one (3), a pressing plate two (4), a pressing column two (5), a pressing plate three (6), a pressing column three (7), a pressing strip (8) and a pressing column one (10), a part bottom plate (21) is placed on the bottom plate (1), the pressing plate one (3) is fixedly connected with the bottom plate (21) to press the part cover plate (22), the pressing column one (10) and the pressing column two (5) matched with the water inlet pipe one (24) and the water inlet pipe two (25) respectively are installed on the water inlet pipe one (24) and the water inlet pipe two (25), the pressing plate three (7) is fixedly connected with the pressing plate two (4) to press the pressing column two (5), the pressing column three (7) matched with the upper straight pipe of the water inlet pipe one (24) is installed above the pressing column one (10), and the pressing strip (8) is fixedly connected with the pressing plate two (4) to press the pressing column three (7).

2. The vacuum brazing fixture for cooling components of an aluminum alloy as set forth in claim 1, wherein, The bottom plate (1), the pressing plate one (3), the pressing plate two (4), the pressing plate three (6) and the pressing strip (8) are fixedly connected with each other through the screw rod (9).

3. The vacuum brazing fixture for cooling components of an aluminum alloy as defined in claim 1, wherein The bottom plate (1) is provided with two circles of through holes, and the screw rod (9) passes through the through holes to connect and fix the bottom plate (1) with the pressing plate one (3) and the pressing plate two (4) respectively.

4. The aluminum alloy cooled component vacuum brazing fixture of claim 1, wherein, The pressing plate one (3) has an outer dimension smaller than that of the bottom plate (1), is provided with a circle of through holes corresponding to the inner circle of through holes of the bottom plate (1) and used for mounting the screw rod (9), and is provided with an avoiding hole at a center position.

5. The aluminum alloy cooled component vacuum brazing fixture of claim 4, wherein, The pressing plate two (4) has an outer dimension consistent with that of the bottom plate (1), is provided with two circles of through holes corresponding to the positions of the two circles of through holes of the bottom plate (1) and used for placing the screw rod (9), and is provided with an avoiding hole and a plurality of threaded holes at a center position.

6. The aluminum alloy cooled component vacuum brazing fixture of claim 1, wherein, The pressing column one (10) has a two-half structure.

7. The aluminum alloy cooled component vacuum brazing fixture of claim 1, wherein, The pressing column two (5) has a two-half structure.

8. The aluminum alloy cooled component vacuum brazing fixture of claim 1, wherein, The pressing column three (7) is a ring-shaped cylinder.

9. The aluminum alloy cooled component vacuum brazing fixture of claim 1, wherein, The pressing plate three (6) has a circular structure and is provided with a through hole corresponding to the center threaded hole of the pressing plate two (4) and used for placing the screw rod (9).

10. The aluminum alloy cooled component vacuum brazing fixture of claim 1, wherein, The pressing strip (8) has a rectangular contour and is provided with a through hole corresponding to the center threaded hole of the pressing plate two (4) and used for placing the screw rod (9).

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