Composite water-cooling plate, water-cooling plate processing technology and welding clamp

Abstract

The invention relates to the technical field of water cooling plate machining, in particular to a composite water cooling plate, a water cooling plate machining technology and a welding clamp. The plate comprises a plate body and a water flow channel in the plate body, a counter bore communicated with the water flow channel is formed in the plate face of the plate body, a composite heat exchange plate is installed at the counter bore in a sealed mode and comprises an aluminum plate and a copper plate which are sequentially distributed from inside to outside, the aluminum plate is formed by FSD deposition processing on the plate face of the copper plate, and the outer edge of the aluminum plate protrudes out of the outer edge of the copper plate. And the outer edge of the aluminum plate is welded with the counter bore, and the outer plate surface of the copper plate forms a heat-conducting contact surface which is in contact with a radiated element for heat exchange. A good heat conduction effect can be directly formed between the heat dissipation component and the heat dissipation component, and the heat dissipation component has good durability.

Description

Technical Field

[0001] The present invention relates to the technical field of water-cooled plate processing, and specifically to a composite water-cooled plate, a water-cooled plate processing technology and a welding fixture. Background Art

[0002] Compared with the air-cooled heat dissipation technology, the water-cooled plate heat dissipation technology has many advantages such as high heat transfer efficiency, low noise, and rapid temperature drop.

[0003] The water-cooled plate is a commonly used water-cooled structure in the prior art, and its structure mainly includes a water flow channel on the plate body and water inlets and outlets at both ends of the water flow channel, as recorded in the text with the name of water-cooled heat dissipation substrate and the Chinese patent publication number CN103137579B. Due to the characteristics that aluminum materials are easy to process and have good rust prevention performance, the materials of water-cooled plates are mainly aluminum materials. When in use, a layer of silicone grease needs to be set between the element to be cooled and the water-cooled plate to ensure good heat dissipation performance between the water-cooled plate and the heat dissipation element. However, since the silicone grease will have a problem of reduced heat dissipation performance after long-term use, at this time, it is necessary to disassemble the heat dissipation element again and supplement new silicone grease, which increases the complexity of using the water-cooled plate, so it needs to be solved urgently. Summary of the Invention

[0004] In order to avoid and overcome the technical problems existing in the prior art, the present invention provides a composite water-cooled plate, a water-cooled plate processing technology and a welding fixture, which can directly form a good heat conduction effect with the heat dissipation element and have good durability.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A composite water-cooled plate includes a plate body and a water flow channel in the plate body. A counterbore communicating with the water flow channel is formed on the plate surface of the plate body, and a composite heat exchange plate is hermetically installed at the counterbore. The composite heat exchange plate includes an aluminum plate and a copper plate distributed in sequence from the inside to the outside, and the aluminum plate is formed by FSD deposition processing on the copper plate surface, and the outer edge of the aluminum plate protrudes from the outer edge of the copper plate. The outer edge of the aluminum plate is welded to the counterbore, and the outer plate surface of the copper plate constitutes a heat conduction contact surface for contacting and exchanging heat with the heat dissipation element.

[0007] As a further solution of the present invention: heat dissipation fins are integrally arranged on the inner plate surface of the aluminum plate.

[0008] A water-cooled plate processing technology, which applies the above-mentioned composite water-cooled plate, includes the following steps:

[0009] Inspect the plate body of the incoming material, process the water flow channel and the counterbore on the plate body, and perform cleaning and cleaning treatment;

[0010] Inspect the incoming copper plates, and fix the copper plate surfaces horizontally on the welding fixture. Using aluminum rods, aluminum wires, or aluminum particles as additive raw materials, deposit and process on the copper plate surface to form a deposited aluminum layer by FSD; thereafter, adjust the relative position of the copper plate and the welding tool, and then deposit and process on the outer edge of the deposited aluminum layer by FSD to form an outer edge deposited layer. The aluminum plate is formed by the deposited aluminum layer and the outer edge deposited layer. After preprocessing the copper plate and the aluminum plate, a composite heat exchange plate is formed, and cleaning treatment is carried out.

[0011] Weld the outer edge of the aluminum plate in the composite heat exchange plate and the outer edge of the counterbore by FSW to form a blank of the composite water-cooled plate. Thereafter, carry out final treatment on the blank of the composite water-cooled plate to form a composite water-cooled plate product.

[0012] As a further solution of the present invention: The process of depositing and processing on the outer edge of the deposited aluminum layer to form an outer edge deposited layer specifically is to rotate the surface of the copper plate to a vertical position, and align the top side of the deposited aluminum layer in the vertical state with the welding tool for FSD deposition processing. After the top side processing is completed, rotate the adjacent side of the deposited aluminum layer to align with the welding tool until the entire outer edge of the deposited aluminum layer is deposited and processed by FSD to form the outer edge deposited layer.

[0013] As a further solution of the present invention: The process of forming a composite heat exchange plate after preprocessing the copper plate and the aluminum plate includes machining heat dissipation fins on the outer surface of the aluminum plate by a CNC lathe.

[0014] As a further solution of the present invention: The process of carrying out final treatment on the blank of the composite water-cooled plate specifically is to successively go through straightening and leveling, non-destructive testing, CNC machining, cleaning, airtightness testing, surface treatment, and final inspection and packaging to form the final composite water-cooled plate product.

[0015] A welding fixture, which applies the above-mentioned water-cooled plate processing process, includes a support seat. The side wall of the support seat is rotationally matched with a rotary seat around a horizontal axis. The upper surface of the rotary seat is rotationally matched with a clamping seat around a vertical axis. A jaw assembly is installed on the clamping seat to form a clamping area for clamping the copper plate on the upper surface of the clamping seat.

[0016] As a further solution of the present invention: A positioning cylinder connected to the clamping seat is arranged inside the clamping area. The positioning cylinder is perpendicular to the upper surface of the clamping seat, and the thickness of the copper plate extending into the clamping area is positioned by the positioning cylinder.

[0017] As a further solution of the present invention: A negative pressure suction cup for adsorbing and fixing the copper plate is installed at the telescopic end of the positioning cylinder.

[0018] As a further solution of the present invention: a first rotary power assembly for driving the rotary seat to rotate is installed on the support seat, and a second rotary power assembly for driving the clamping seat to rotate is installed on the rotary seat.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The copper plate of the composite heat exchange plate forms a heat-conducting contact surface in contact with the heat-dissipating element for heat exchange. By utilizing the high-efficiency instantaneous heat absorption capacity of copper, it replaces the traditional heat conduction between the silicone grease-assisted water-cooling plate and the heat-dissipating element, and has better durability compared to silicone grease. In addition, in the composite heat exchange plate, the aluminum plate is processed by FSD deposition on the plate surface of the copper plate, and the outer edge of the aluminum plate protrudes from the outer edge of the copper plate. The outer edge of the aluminum plate is welded to the counterbore, which reduces the difficulty of welding between the composite heat exchange plate and the plate body. At the same time, it also completely isolates the copper plate part from the water flow channel, effectively preventing the copper plate from being corroded, and further improving the durability of the copper plate in use.

[0021] It is worth mentioning that although in actual implementation, the edge of the copper plate can be directly welded to the plate body as a heat-conducting component, it is obvious that it is impossible to ensure a high degree of fit between the plate surface of the copper plate and the plate body. If the direct fit between the plate surface of the copper plate and the plate body is insufficient during the welding process or the deformation during use causes the separation between the plate surface of the copper plate and the plate body, it will result in insufficient heat exchange effect between the copper plate and the coolant flowing in the plate body, thus violating the original intention of using the copper plate as a heat-conducting component to improve the heat conduction effect in this application. Of course, the method of first welding between the aluminum plate and the copper plate and then welding the aluminum plate to the plate body is the same as the above method. In the composite heat exchange plate formed by FSD deposition processing in this application, not only does it make the aluminum plate and the copper plate form a structure almost like integral casting during the production process, resulting in a higher degree of fit between the aluminum plate and the copper plate, but also it can prevent the separation between the plate surfaces of the aluminum plate and the copper plate caused by deformation during use, and can significantly improve the heat conduction effect between the aluminum plate and the copper plate.

[0022] 2. The method of forming a deposited aluminum layer by FSD deposition processing on the plate surface of the copper plate can only form an ordinary copper-aluminum composite plate with the outer edges of the copper plate and the aluminum plate flush or the outer edge of the copper plate protruding from the outer edge of the aluminum plate. Further, in this application, by adjusting the relative position of the copper plate and the welding tool, and then performing FSD deposition processing on the outer edge of the deposited aluminum layer to form an outer edge deposited layer, the aluminum plate is formed jointly by the deposited aluminum layer and the outer edge deposited layer. Thus, an integral aluminum plate with an outer edge protruding from the outer edge of the copper plate is formed by FSD deposition processing. This not only reduces the waste of materials but also ensures the strength and tightness of the integral structure of the aluminum plate and is beneficial to improving the welding connection performance.

[0023] It is worth mentioning that in the process of forming the outer edge deposition layer in this application, the deposition aluminum layer and the outer edge deposition layer are processed in a manner that the FSD deposition processing directions are perpendicular to each other. After the deposition aluminum layer is processed and formed, the rotating welding tool will be perpendicular to the deposition processing direction during the processing of the deposition aluminum layer, re-frictionally plastically soften the outer periphery of the deposition aluminum layer and deposit to form the outer edge deposition layer, and use the outer edge deposition layer to wrap around the outer periphery of the deposition aluminum layer, strengthening the bonding between the additive raw materials that form the deposition aluminum layer. Subsequently, the FSW welding between the outer edge deposition layer and the outer edge of the counterbore is perpendicular to the deposition processing direction of the outer edge deposition layer, which further ensures the bonding of the welding between the outer edge deposition layer and the plate body, thereby comprehensively ensuring the stability of the connection between the plate body and the composite plate heat exchange.

[0024] In addition, the outer edge of the aluminum plate in the composite heat exchange plate and the outer edge of the counterbore are welded by FSW. This FSW welding combined with the above-mentioned FSD deposition processing method for preparing the water-cooled plate also has the advantages of reducing energy consumption, reducing pollution, high material utilization rate, and low cost.

[0025] 3. Due to the easy-to-process characteristics of aluminum, the inner surface of the aluminum plate is integrally arranged with heat dissipation fins, which increases the contact area between the aluminum plate and the heat-absorbing liquid in the water flow channel and improves the heat exchange effect between the aluminum plate and the heat-absorbing liquid.

[0026] 4. In this application, the clamping seat in the welding fixture for FSD deposition processing can rotate around the vertical axis on the rotary seat and rotate around the horizontal axis on the support seat. The multi-axis composite movement of this clamping seat enables the surface of the copper plate fixed on the clamping seat to be processed by FSD deposition to form a deposition aluminum layer, and then through this multi-axis composite movement action, the outer edge deposition layer can be formed by FSD deposition on the outer edge of the deposition aluminum layer, providing technical support in terms of hardware for the FSD deposition processing of the composite heat exchange plate.

[0027] 5. To clamp copper plates with different thicknesses, in this application, a positioning cylinder connected to the clamping seat is arranged inside the clamping area. The positioning cylinder is perpendicular to the upper surface of the clamping seat, and the thickness of the copper plate extending into the clamping area is positioned by the positioning cylinder. Specifically, when the positioning cylinder stretches outwards, the thickness of the copper plate extending into the clamping area decreases, and when the positioning cylinder contracts inwards, the thickness of the copper plate extending into the clamping area increases, so as to prevent the jaws of the jaw assembly from extending to the upper surface of the copper plate and affecting the processing of the aluminum plate when clamping a thinner copper plate.

[0028] 6. To prevent the clamping force of the jaw assembly from being insufficient when clamping a thinner copper plate, a negative pressure suction cup for adsorbing and fixing the copper plate is installed at the telescopic end of the positioning cylinder to assist the jaw assembly in fixing the copper plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic exploded view of the composite water-cooled plate in the present invention.

[0030] Figure 2 It is a schematic structural diagram of the composite water-cooled plate in the present invention.

[0031] Figure 3 It is a schematic structural diagram of the welding fixture in the present invention.

[0032] Figure 4 It is a process flow chart of the water-cooled plate processing technology in the present invention.

[0033] In the figure: 10, plate body; 11, water flow channel; 12, counterbore; 20, composite heat exchange plate; 21, aluminum plate; 22, copper plate; 23, heat dissipation fin; 30, support seat; 31, first rotary power component; 40, rotary seat; 41, second rotary power component; 50, clamping seat; 51, jaw assembly; 52, positioning cylinder; 53, negative pressure suction cup. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] For ease of understanding, the specific structure and working mode of the present invention are further described as follows in conjunction with the accompanying drawings:

[0036] The specific structure of a composite water-cooled plate in the present invention is referred to Figure 1-2 as shown, and its main structure includes a plate body 10 and a composite heat exchange plate 20.

[0037] Specifically, for the water flow channel 11 inside the plate body 10, the structure of the water flow channel 11 is a conventional design of the water flow channel 11 in the prior art. The two ends of the water flow channel 11 are respectively communicated with the water inlet pipe and the water outlet pipe. A counterbore 12 communicating with the water flow channel 11 is opened on the plate surface of the plate body 10, and a composite heat exchange plate 20 is hermetically installed at the counterbore 12. Among them, the composite heat exchange plate 20 includes an aluminum plate 21 and a copper plate 22 distributed in sequence from the inside to the outside. The outer edge of the aluminum plate 21 protrudes from the outer edge of the copper plate 22. The outer edge of the aluminum plate 21 is welded to the counterbore 12, and the outer plate surface of the copper plate 22 constitutes a heat conduction contact surface for heat exchange with the element to be cooled. The copper plate 22 of the composite heat exchange plate 20 is used to constitute the heat conduction contact surface for heat exchange with the element to be cooled. Utilizing the high-efficiency instantaneous heat absorption capacity of copper, it replaces the heat conduction between the traditional silicone grease-assisted water-cooling plate and the element to be cooled, and has better durability compared with silicone grease. In addition, in this application, the outer edge of the aluminum plate 21 protrudes from the outer edge of the copper plate 22, and the outer edge of the aluminum plate 21 is welded to the counterbore 12, which reduces the welding difficulty between the composite heat exchange plate 20 and the plate body 10. At the same time, the copper plate 22 part is completely isolated from the water flow channel 11, effectively preventing the copper plate 22 from being corroded, and further improving the durability of the copper plate 22 in use.

[0038] On the above basis, as Figure 1 and 2 shown, due to the easy processing characteristics of aluminum, the inner plate surface of the aluminum plate 21 is integrally provided with heat dissipation fins 23, which increases the contact area between the aluminum plate 21 and the heat absorption liquid in the water flow channel 11 and improves the heat exchange effect between the aluminum plate 21 and the heat absorption liquid.

[0039] On the above basis, this application also provides a water-cooling plate processing technology applying the above composite water-cooling plate. As Figure 4 shown, it mainly includes the following steps:

[0040] The processing of the plate body 10 is mainly carried out by a CNC machining lathe. Before processing, the plate body 10 is first inspected for incoming materials, and then the water flow channel 11 and the counterbore 12 are processed on the plate body 10, and cleaning and cleaning treatment are carried out. The processing process of the plate body 10 on the CNC machining lathe is a conventional processing process of the water flow channel 11 and the counterbore 12 in the prior art, which will not be elaborated here.

[0041] The processing of the composite heat exchange plate 20 is mainly carried out by an FSD deposition manufacturing device (friction stir deposition manufacturing device). Before FSD deposition manufacturing, the copper plate 22 is first inspected for incoming materials, and the copper plate 22 is horizontally fixed on the welding fixture. Using an aluminum rod, aluminum wire, or aluminum particles as the additive raw material, an aluminum deposition layer is formed on the surface of the copper plate 22 by FSD deposition processing. The main process of forming the aluminum deposition layer on the surface of the copper plate 22 by FSD deposition processing here is to put the additive raw material into the welding tool for FSD deposition processing, drive the welding tool to move to the surface of the copper plate 22, and at the same time drive the welding tool to rotate; drive the welding tool to move downward, make the additive raw material protruding from the bottom surface of the welding tool fit with the copper plate 22, and the rotating welding tool drives the additive raw material to stir-friction heat with the copper plate 22, thereby enabling the additive raw material to form an aluminum deposition layer on the copper plate 22. Compared with the processes of hot rolling, explosion welding, or brazing for manufacturing copper-aluminum composite plates, it has the advantages of reducing energy consumption, reducing pollution, and high material utilization rate. Due to the form of this FSD deposition processing, there must be a copper plate 22 as a support carrier below the formation of the aluminum deposition layer. Therefore, the method of forming the aluminum deposition layer on the surface of the copper plate 22 by FSD deposition processing as described above can only form a common copper-aluminum composite plate with the outer edge of the copper plate 22 flush with the outer edge of the aluminum plate 21 or the outer edge of the copper plate 22 protruding from the outer edge of the aluminum plate 21. Therefore, on the basis of this common copper-aluminum composite plate, further processing is required in this application. By adjusting the relative position of the copper plate 22 and the welding tool, an outer edge deposition layer is formed by FSD deposition processing on the outer edge of the aluminum deposition layer. The aluminum plate 21 is formed by the aluminum deposition layer and the outer edge deposition layer. After preprocessing the copper plate 22 and the aluminum plate 21, the composite heat exchange plate 20 is formed and subjected to cleaning treatment, so that in the final composite heat exchange plate 20, the outer edge of the aluminum plate 21 protrudes from the outer edge of the copper plate 22 in a structural form, which is convenient for the welding operation of the final composite heat exchange plate 20 and the plate body 10. Among them, the process of forming the outer edge deposition layer on the outer edge of the aluminum deposition layer is specifically as follows: rotate the surface of the copper plate 22 to an upright position, and align the top side of the aluminum deposition layer in the upright state with the welding tool for FSD deposition processing; after the top side processing is completed, rotate the adjacent side of the aluminum deposition layer to align with the welding tool until the outer edge of the aluminum deposition layer is all formed with an outer edge deposition layer by FSD deposition processing. In this application, after the copper plate 22 is erected, the outer edge of the aluminum deposition layer is used as the horizontal plane for bearing formed by FSD deposition processing with the welding tool, and the outer edge deposition layer is formed by sequentially performing FSD deposition processing on the outer edge of the aluminum deposition layer. Thus, an integral aluminum plate 21 with an outer edge protruding from the outer edge of the copper plate 22 is formed by FSD deposition processing. It is worth mentioning that although in the actual processing process, the copper plate 22 in the traditional common copper-aluminum composite plate can be processed by CNC to cut the outer edge of the copper plate 22 to form a composite heat exchange plate 20 with the outer edge of the aluminum plate 21 protruding from the outer edge of the copper plate 22 required in this application, in this method, there are obviously problems such as waste of the copper plate 22 material and difficulty in processing the joint between the outer edge of the copper plate 22 and the aluminum plate 21.

[0042] After the above-mentioned plate body 10 and the composite heat exchange plate 20 are processed, the two need to be further assembled and processed. Specifically, the outer edge of the aluminum plate 21 in the composite heat exchange plate 20 and the outer edge of the counterbore 12 are processed by FSW (friction stir welding), thereby forming a composite water-cooled plate blank. After that, the composite water-cooled plate blank is subjected to final treatment to form a composite water-cooled plate product. The process of final treatment of the composite water-cooled plate blank is specifically as follows: successively through straightening and leveling of the composite water-cooled plate blank, non-destructive testing to detect the damage of the outer surface of the composite water-cooled plate blank, CNC machining to cut off excess corner materials, cleaning, airtightness testing to ensure the airtightness of the water flow channel 11, surface treatment to polish and remove burrs, and final inspection and packaging to form a final sellable composite water-cooled plate product. The straightening and leveling, non-destructive testing, CNC machining, cleaning, airtightness testing, surface treatment, and final inspection and packaging can all adopt existing conventional processing procedures, and the specific process will not be elaborated here.

[0043] On the above basis, the process of forming the composite heat exchange plate 20 after pre-treating the copper plate 22 and the aluminum plate 21 further includes forming heat dissipation fins 23 on the outer plate surface of the aluminum plate 21 by a CNC machining lathe. In the above processing process, preferably, the surface of the deposited aluminum layer has a convex part protruding from the surface of the outer edge deposited layer. The convex part is machined by CNC to form heat dissipation fins 23 at the convex part, so that it is not necessary to cut off the excess material of the outer edge deposited layer, reducing the waste of aluminum materials and being beneficial to ensuring the welding connection strength.

[0044] It is worth mentioning that the above-mentioned plate body 10 can be aluminum profile, cast aluminum, forged aluminum alloy, and can also be copper alloy when necessary, and the weld between the plate body 10 and the composite heat exchange plate 20 can be a 2D or 3D curve. In addition, on the basis that different specifications of heat dissipation fins 23 or heat dissipation teeth can be processed and formed on the above-mentioned aluminum plate 21, if necessary, such as the contact surface between the heat dissipation element and the copper plate 22 is an irregular surface, heat dissipation fins and heat dissipation teeth of the required specifications can also be synchronously formed on the copper plate 22.

[0045] On the above basis, for the convenience of understanding the processing steps of the outer edge deposited layer, a welding fixture in the processing of the outer edge deposited layer and the deposited aluminum layer is also disclosed in this application. The welding fixture is applied to the above-mentioned water-cooled plate processing technology, such as Figure 3As shown in the figure, it includes a support base 30. A rotary base 40 is rotatably fitted to the side wall of the support base 30 around a horizontal axis. A clamping base 50 is rotatably fitted to the upper surface of the rotary base 40 around a vertical axis. A jaw assembly 51 is installed on the clamping base 50 to form a clamping area for clamping the copper plate 22 on the upper surface of the clamping base 50. The jaw assembly 51 adopts traditional conventional jaws, and it can clamp and fix the copper plate 22 on the upper surface of the clamping base 50. During the deposition of the aluminum layer processing, by horizontally fixing the plate surface of the copper plate 22 on the clamping base 50, the FSD deposition processing of the aluminum layer can be carried out. After that, the rotary base 40 rotates around the horizontal axis, making the plate surface of the copper plate 22 upright, and using the outer edge of the aluminum layer processed and rotated to the upper part as the lower support for the FSD deposition processing. Thus, the FSD deposition processing of the outer edge deposition layer is completed at one of the outer edges of the aluminum layer. After that, the clamping base 50 rotates around its vertical axis, thereby carrying out the FSD deposition processing on the adjacent outer edges of the unprocessed aluminum layer to form the outer edge deposition layers on the adjacent sides. It should be noted that the vertical axis of the clamping base 50 in this step has been switched to a horizontal state due to the rotation of the rotary base 40. As the clamping base 50 rotates around its vertical axis in sequence, the processing of the outer edge deposition layer is finally realized.

[0046] It is worth mentioning that after the above-mentioned deposition of the aluminum layer processing is completed, limited by the processing accuracy of the aluminum layer, the outer edge of the aluminum layer can be polished or cut to form a regular strip-shaped structure.

[0047] On the above basis, as Figure 3 shown, to realize the clamping of copper plates 22 with different thicknesses of the copper plate 22, in this application, a positioning cylinder 52 connected to the clamping base 50 is arranged inside the clamping area. The positioning cylinder 52 is perpendicular to the upper surface of the clamping base 50, and the thickness of the copper plate 22 extending into the clamping area is positioned by the positioning cylinder 52. Specifically, when the positioning cylinder 52 stretches outwards, the thickness of the copper plate 22 extending into the clamping area decreases. When the positioning cylinder 52 contracts inwards, the thickness of the copper plate 22 extending into the clamping area increases, so as to prevent the jaws of the jaw assembly 51 from extending to the upper surface of the copper plate 22 and affecting the processing of the aluminum plate 21 when clamping the thinner copper plate 22.

[0048] Furthermore, as Figure 3 shown, to prevent the clamping force of the jaw assembly 51 from being insufficient when clamping the thinner copper plate 22, a negative pressure suction cup 53 for adsorbing and fixing the copper plate 22 is installed at the telescopic end of the positioning cylinder 52 to assist the jaw assembly 51 in fixing the copper plate 22.

[0049] In addition, as Figure 3As shown, a first rotary power assembly 31 for driving the rotary seat 40 to rotate is installed on the support seat 30, and a second rotary power assembly 41 for driving the clamping seat 50 to rotate is installed on the rotary seat 40, enabling automatic rotary driving of the rotary seat 40 and the clamping seat 50. Specifically, both the first rotary power assembly 31 and the second rotary power assembly 41 can be servo motors. Of course, in actual implementation, other existing rotary drive structures can also be selected.

[0050] Of course, for those skilled in the art, the present invention is not limited to the details of the above exemplary embodiments, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claimed invention.

[0051] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0052] The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A composite water-cooled plate, comprising a plate body (10) and a water flow channel (11) inside the plate body (10), characterized in that, The plate surface of the plate body (10) is provided with a counterbore (12) communicating with the water flow channel (11). A composite heat exchange plate (20) is hermetically installed at the counterbore (12). The composite heat exchange plate (20) includes an aluminum plate (21) and a copper plate (22) sequentially distributed from the inside to the outside. The aluminum plate (21) is formed by FSD deposition processing on the plate surface of the copper plate (22). And the outer edge of the aluminum plate (21) protrudes from the outer edge of the copper plate (22). The outer edge of the aluminum plate (21) is welded to the counterbore (12), and the outer plate surface of the copper plate (22) constitutes a heat conduction contact surface for heat exchange with the element to be cooled.

2. The composite water cooling plate according to claim 1, characterized in that, A heat dissipation fin (23) is integrally arranged on the inner plate surface of the aluminum plate (21).

3. The processing technology of the water-cooling plate, which is applied to a composite water-cooling plate as described in Claim 1 or 2, is characterized in that It includes the following steps: Inspect the incoming material of the plate body (10), process the water flow channel (11) and the counterbore (12) on the plate body (10), and perform cleaning and cleaning treatment. Inspect the incoming material of the copper plate (22), horizontally fix the plate surface of the copper plate (22) on the welding fixture, use an aluminum rod or aluminum wire or aluminum particles as the additive raw material, and form a deposited aluminum layer by FSD deposition processing on the plate surface of the copper plate (22). Thereafter, adjust the relative position of the copper plate (22) and the welding tool, and then form an outer edge deposited layer by FSD deposition processing on the outer edge of the deposited aluminum layer. The aluminum plate (21) is formed by the deposited aluminum layer and the outer edge deposited layer. After preprocessing the copper plate (22) and the aluminum plate (21), a composite heat exchange plate (20) is formed, and cleaning and cleaning treatment are performed. The outer edge of the aluminum plate (21) in the composite heat exchange plate (20) is welded to the outer edge of the counterbore (12) by FSW to form a composite water-cooled plate blank. Thereafter, final treatment is performed on the composite water-cooled plate blank to form a composite water-cooled plate product.

4. The water-cooled plate processing technology according to claim 3, characterized in that The process of forming the outer edge deposited layer by FSD deposition processing on the outer edge of the deposited aluminum layer is specifically as follows: Rotate the plate surface of the copper plate (22) to be upright, and align the top side of the deposited aluminum layer in the upright state with the welding tool for FSD deposition processing. After the top side processing is completed, rotate the adjacent side of the deposited aluminum layer to align with the welding tool until the outer edge of the deposited aluminum layer is all formed with the outer edge deposited layer by FSD deposition processing.

5. The water-cooled plate processing technology according to claim 3, characterized in that, The process of forming the composite heat exchange plate (20) after preprocessing the copper plate (22) and the aluminum plate (21) includes processing the heat dissipation fin (23) on the outer plate surface of the aluminum plate (21) by a CNC machining lathe.

6. The water-cooled plate processing technology according to claim 3, wherein, The process of performing final treatment on the composite water-cooled plate blank is specifically as follows: successively go through straightening and leveling, non-destructive testing, CNC machining, cleaning and cleaning, airtightness testing, surface treatment and final inspection and packaging to form the final composite water-cooled plate product.

7. Welding fixture, which is applied to the water-cooled plate processing technology as described in claim 4, characterized in that, It includes a support seat (30). A rotary seat (40) is rotationally fitted on the side wall of the support seat (30) around a horizontal axis. A clamping seat (50) is rotationally fitted on the upper surface of the rotary seat (40) around a vertical axis. A jaw assembly (51) is installed on the clamping seat (50) to form a clamping area for clamping the copper plate (22) on the upper surface of the clamping seat (50).

8. The welding jig according to claim 7, wherein Inside the clamping area, a positioning cylinder (52) connected to the clamping seat (50) is arranged. The positioning cylinder (52) is perpendicular to the upper surface of the clamping seat (50), and the thickness of the copper plate (22) extending into the clamping area is positioned by the positioning cylinder (52).

9. The welding jig according to claim 8, wherein, A negative pressure suction cup (53) for adsorbing and fixing the copper plate (22) is installed at the telescopic end of the positioning cylinder (52).

10. The welding jig according to claim 7, characterized in that, A first rotary power assembly (31) for driving the rotary seat (40) to rotate is installed on the support seat (30), and a second rotary power assembly (41) for driving the clamping seat (50) to rotate is installed on the rotary seat (40).

Images