Multi-section distributed clamping device for water cooling plate

By designing a multi-stage distributed clamping device for water-cooled plates, the combination of bottom plates, avoidance holes, covers and quick clamps can achieve uniform pressing and clamping of water-cooled plates, solving the insufficient clamping and welding in the prior art. The problem of interference improves welding quality and efficiency.

CN119115372APending Publication Date: 2024-12-13WUHAN NEWLAZ INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202411398267.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2024-12-13

AI Technical Summary

Technical Problem

The existing water-cooled plate clamping devices have few clamping points, which leads to the slender water-cooled plate being easily deformed during welding and interfering with welding equipment, affecting welding quality and efficiency.

Method used

A water-cooled plate multi-stage distributed clamping device is designed, including a bottom plate, a avoidance hole, a positioning pin, a cover, annular cover, a quick clamp and a pressing plate. The outer edge of the plate is achieved through uniform pressing of multiple quick clamps. Evenly pressing the inner edge ensures that the clamping point is sufficient, avoids deformation, and adjusts the clamp state during welding to avoid interference.

Benefits of technology

Reliable clamping of water-cooled plates is achieved, avoiding deformation during welding, ensuring welding quality and efficiency, and avoiding interference from welding equipment.

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Abstract

The invention discloses a multi-section distributed clamping device for a water cooling plate, and belongs to the technical field of water cooling plate machining. The distributed clamping device comprises a bottom plate and a clamping assembly. The bottom plate is provided with receding holes and positioning pins, the receding holes extend in the first direction, and the multiple positioning pins are arranged in the circumferential direction of the receding holes at intervals. The clamping assembly comprises a cover shell, an annular cover, a plurality of first quick clamps and a plurality of second quick clamps, the cover shell is used for covering the protruding part of the other plate body, the outer edge of the cover shell is used for pressing the other plate body, the outer edge of the annular cover is pressed on the bottom plate, the inner edge of the annular cover is pressed on the other plate body, and the first quick clamps and the second quick clamps are arranged on the bottom plate. The multiple first quick clamps and the multiple second quick clamps are arranged on the bottom plate at intervals along the annular cover and extend along the two sides of the receding hole. According to the multi-section distributed clamping device for the water cooling plate provided by the embodiment of the invention, enough clamping point positions are guaranteed, and interference to welding equipment during annular welding can be avoided.
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Description

Technical Field

[0001] The invention belongs to the technical field of water cooling plate processing, and in particular relates to a multi-section distributed clamping device for a water cooling plate. Background Art

[0002] Water cooling plate is also called water cooling radiator or liquid cooling radiator. It is generally made of aluminum and used to dissipate heat. Water cooling plate is mainly used in electronics, automobile manufacturing, aerospace, machinery manufacturing, energy and military fields. It can effectively cool the components of various equipment and maintain their normal operation. Among them, water cooling plate is an important component of battery pack.

[0003] At present, the size of the water-cooling plates in the battery pack is getting larger and larger, especially some water-cooling plates are gradually developing in the direction of slenderness (length greater than 2m, aspect ratio of 5-30). This type of water-cooling plate usually includes two plates (annular structure), and each plate has a protruding portion in the middle (small thickness, and extending in a straight line, with corresponding joints). During assembly, the edges of the two plates are parallelly attached together through a clamping device, and the two protruding portions form a flow channel for accommodating the coolant (see Figure 1 and Figure 2 ). Under the clamping of the clamping device, the welding equipment realizes the assembly of the water cooling plate through circular welding.

[0004] However, the existing clamping device has few clamping points, which can easily cause deformation of the slender water-cooling plate during welding after clamping, and the clamping points can easily interfere with the welding equipment on the welding path of the circular weld, thereby affecting the welding quality and efficiency. Summary of the invention

[0005] In response to the above defects or improvement needs of the prior art, the present invention provides a multi-section distributed clamping device for a water-cooled plate, the purpose of which is to achieve uniform pressing of the outer and inner edges of the two plate bodies, which not only ensures sufficient clamping points so that the two plates can be reliably clamped on the base plate, avoiding the problem of deformation of the water-cooled plate during welding after clamping, but also avoids interference with the welding equipment during circular welding, thereby ensuring welding quality and efficiency.

[0006] To achieve the above-mentioned object, the present invention provides a multi-section distributed clamping device for a water-cooled plate, wherein the distributed clamping device comprises a base plate and a clamping assembly;

[0007] The bottom plate is provided with a position-avoiding hole and a positioning pin, the position-avoiding hole extends along a first direction, the position-avoiding hole is used to accommodate a protruding portion of a plate body, and a plurality of the positioning pins are arranged at intervals along the circumference of the position-avoiding hole to surround and position two plate bodies;

[0008] The clamping assembly includes a cover shell, an annular cover, a plurality of first quick clamps and a plurality of second quick clamps, the cover shell is used to cover the protrusion of another plate body, and the outer edge of the cover shell is used to press the other plate body, the outer edge of the annular cover is pressed on the bottom plate, the inner edge of the annular cover is used to press the other plate body, and the inner edge of the annular cover and the outer edge of the cover shell are arranged at intervals to form an annular welding space, a plurality of the first quick clamps and a plurality of the second quick clamps are arranged at intervals along the annular cover on the bottom plate, and both extend along both sides of the avoidance hole, each of the first quick clamps is configured as follows: when the first quick clamp is in the first state, the output end of the first quick clamp is pressed on the cover shell, and when the first quick clamp is in the second state, the output end of the first quick clamp is spaced from the annular welding space, and the output end of each of the second quick clamps is used to press the annular cover.

[0009] Optionally, the cover shell includes a plurality of cover shell units arranged sequentially along the first direction.

[0010] Optionally, the clamping assembly further comprises a plurality of pressure plates, one end of each of the pressure plates being located on one of the cover units, and the other end of each of the pressure plates being located on another adjacent cover unit, and when the first quick clamp is in the first state, the output end of the first quick clamp is pressed against a corresponding pressure plate.

[0011] Optionally, the clamping assembly further comprises a plurality of positioning plates, one end of each of the positioning plates is detachably mounted on the base plate via a plurality of bolts, and the other end of each of the positioning plates is detachably mounted on the cover unit via a plurality of bolts.

[0012] Optionally, the annular cover includes two U-shaped portions and a plurality of strip-shaped portions, and the plurality of strip-shaped portions are located on the two U-shaped portions.

[0013] Optionally, the output ends of the plurality of second quick-action clamps are used to press the U-shaped portion or the U-shaped portion and the corresponding strip portion, and the output ends of the plurality of second quick-action clamps are fixedly connected to the strip portion via a connecting block.

[0014] Optionally, an annular groove is provided on the bottom plate, the annular groove is located outside the avoidance hole and is directly opposite to the annular welding space, and an inert gas is connected to the annular groove.

[0015] Optionally, in the first direction, a plurality of the first quick clamps are symmetrically arranged along the central axis of the avoidance hole, and an output end of each of the first quick clamps is used to be pressed onto the central axis of the cover shell.

[0016] Optionally, the inner edge of the annular cover and the outer edge of the cover shell are both inclined surfaces, and the distance between the two inclined surfaces gradually decreases in the direction toward the bottom plate.

[0017] Optionally, a T-bolt is disposed on the output end of the first quick clamp and the output end of the second quick clamp, and one end of the T-bolt facing the cover shell or the annular cover is a nut.

[0018] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0019] In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

[0020] For a multi-section distributed clamping device for a water-cooled plate provided in an embodiment of the present invention, when assembling the water-cooled plate, first, place the two plate bodies flat on the bottom plate in turn. At this time, the avoidance holes are used to accommodate the protruding portion of the lower plate body, and the two plate bodies are precisely positioned through a plurality of positioning pins. Then, a cover is placed on the upper plate body, and an annular cover is placed on the upper plate body and the bottom plate. At this time, the annular cover is located on the outside of the cover shell and is spaced apart from the cover shell to form an annular welding space. Next, the annular cover is evenly pressed through the output ends of a plurality of second quick clamps, so that the outer edge of the upper plate body is evenly pressed through the evenly pressed annular cover. The cover is evenly pressed by the output ends of the multiple first quick clamps, so that the inner edge of the upper plate is evenly pressed by evenly pressing the cover. At this time, the outer and inner edges of the two plates can be evenly pressed, which can not only realize distributed pressing, but also realize pressing at different positions, ensuring sufficient clamping points, so that the two plates can be reliably clamped on the bottom plate, avoiding the problem that the water-cooled plate is easily deformed during welding after clamping, especially avoiding the deformation of the slender water-cooled plate. Finally, when welding the two plates, the plate exposed below is welded after the welding equipment moves along the annular welding space. At this time, the annular cover and the multiple second quick clamps will not interfere with the annular welding because they are located outside the annular welding space. For the multiple first quick clamps, when the upper side of the plate is welded by annular welding, the multiple first quick clamps on the upper side are in the second state (i.e., the pressing of the cover is released in advance), and the output end of the corresponding first quick clamp is spaced from the annular welding space. At this time, when the annular welding is performed on the upper side, the welding equipment will not interfere with the multiple first quick clamps on the upper side. The multiple first quick clamps on the lower side are in the first state, that is, at this time, the cover shell is reliably pressed by the multiple first quick clamps on the lower side, thereby ultimately ensuring that the cover shell will not interfere with the annular welding on the upper side while being pressed. Similarly, when the annular welding is welded to the lower side of the plate body, the multiple first quick clamps on the lower side are in the second state to prevent the multiple first quick clamps on the lower side from interfering with the annular welding on the lower side, while the multiple first quick clamps on the upper side are in the first state, and the cover shell is reliably pressed on the bottom plate, which can also ensure that the cover shell will not interfere with the annular welding on the lower side while being pressed, thereby ultimately completing the annular welding uninterruptedly and without interfering with the welding equipment, thereby ensuring the welding quality and efficiency.

[0021] That is to say, a multi-section distributed clamping device for a water-cooled plate provided in an embodiment of the present invention can achieve uniform pressing of the outer and inner edges of the two plate bodies, which not only ensures sufficient clamping points so that the two plate bodies can be reliably clamped on the base plate, avoiding the problem of deformation of the water-cooled plate after clamping during welding, but also avoids interference with the welding equipment during circular welding, thereby ensuring welding quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1is a schematic structural diagram of a water cooling plate provided by an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A partial enlarged view of

[0024] Figure 3 It is a structural schematic diagram of a multi-section distributed clamping device for a water-cooled plate provided by an embodiment of the present invention;

[0025] Figure 4 yes Figure 3 A partial enlarged view of

[0026] Figure 5 yes Figure 3 A cross-sectional view of

[0027] Figure 6 yes Figure 5 A partial enlarged view of area A.

[0028] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0029] 1. Bottom plate; 11. Avoidance hole; 12. Annular groove; 2. Cover shell; 21. Cover shell unit; 3. Annular cover; 31. U-shaped portion; 32. Strip portion; 4. First quick clamp; 5. Second quick clamp; 51. Connecting block; 6. Annular welding space; 7. Pressing plate; 8. Positioning plate; 9. Inclined surface; 10. T-bolt; 100. Plate body; 200. Protruding portion. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] Example:

[0036] Figure 3 is a schematic diagram of the structure of a multi-section distributed clamping device for a water-cooled plate provided by an embodiment of the present invention, such as Figure 3 As shown, the distributed clamping device includes a base plate 1 and a clamping assembly.

[0037] Figure 4 yes Figure 3 A partial enlarged view of Figure 5 yes Figure 3 A cross-sectional view of Figure 6 yes Figure 5 A partial enlarged view of the A area, combined with Figure 4-Figure 6 As shown, the base plate 1 has a avoidance hole 11 and a positioning pin (not shown), the avoidance hole 11 extends along the first direction (X-axis direction), the avoidance hole 11 is used to accommodate a protrusion 200 of a plate body 100, and a plurality of positioning pins are arranged circumferentially along the avoidance hole 11 to surround and position the two plate bodies 100.

[0038] The clamping assembly includes a cover shell 2, an annular cover 3, a plurality of first quick clamps 4 and a plurality of second quick clamps 5, the cover shell 2 is used to cover the protrusion 200 of another plate body 100, and the outer edge of the cover shell 2 is used to press the other plate body 100, the outer edge of the annular cover 3 is pressed on the base plate 1, the inner edge of the annular cover 3 is used to press the other plate body 100, and the inner edge of the annular cover 3 and the outer edge of the cover shell 2 are arranged at intervals to form an annular welding space 6, a plurality of first quick clamps 4 and a plurality of second quick clamps 5 are arranged at intervals along the annular cover 3 on the base plate 1, and both extend along both sides of the avoidance hole 11, each first quick clamp 4 is configured as follows: when the first quick clamp 4 is in the first state, the output end of the first quick clamp 4 is pressed on the cover shell 2, and when the first quick clamp 4 is in the second state, the output end of the first quick clamp 4 is spaced from the annular welding space 6 (that is, the projections of the two on the base plate 1 do not overlap), and the output end of each second quick clamp 5 is used to press the annular cover 3.

[0039] For a multi-section distributed clamping device for a water-cooled plate provided in an embodiment of the present invention, when assembling the water-cooled plate, first, the two plate bodies 100 are placed flat on the bottom plate 1 in sequence. At this time, the avoidance hole 11 realizes the accommodation and avoidance of the protrusion 200 of the lower plate body 100, and the two plate bodies 100 are accurately positioned through multiple positioning pins. Then, a cover shell 2 is placed on the upper plate body 100, and an annular cover 3 is placed on the upper plate body 100 and the bottom plate 1. At this time, the annular cover 3 is located on the outside of the cover shell 2 and is spaced apart from the cover shell 2 to form an annular welding space 6. Next, the annular cover 3 is evenly pressed through the output ends of multiple second quick clamps 5, so that the outer edge of the upper plate body 100 is evenly pressed by evenly pressing the annular cover 3. And the cover shell 2 is evenly pressed through the output ends of multiple first quick clamps 4, so that the inner edge of the upper plate 100 is evenly pressed by evenly pressing the cover shell 2. At this time, the outer edges and inner edges of the two plate bodies 100 can be evenly pressed, which can not only achieve distributed pressing, but also achieve pressing at different positions, ensuring sufficient clamping points, so that the two plate bodies 100 can be reliably clamped on the base plate 1, avoiding the problem of deformation that is very easy to cause during welding after the water-cooled plate is clamped, especially avoiding the deformation of slender water-cooled plates. Finally, when welding the two plate bodies 100, the welding equipment is moved along the annular welding space 6 to weld the exposed plate body 100 below. At this time, the annular cover 3 and the multiple second quick clamps 5 are located outside the annular welding space 6 and will not interfere with the annular welding. As for the multiple first quick clamps 4, when the annular welding is performed on the upper side of the plate body 100 (see Figure 3), the multiple first quick clamps 4 on the upper side are in the second state (i.e., the pressing of the cover shell 2 is released in advance), and the output end of the corresponding first quick clamps 4 is spaced from the annular welding space 6. At this time, when annular welding is performed on the upper side, the welding equipment will not interfere with the multiple first quick clamps 4 on the upper side. The multiple first quick clamps 4 on the lower side are in the first state, i.e., at this time, the cover shell 2 is reliably pressed by the multiple first quick clamps 4 on the lower side, thereby ultimately ensuring that the cover shell 2 is pressed without interfering with the annular welding on the upper side. Similarly, when the annular welding is welded to the lower side of the plate body 100, the multiple first quick clamps 4 on the lower side are in the second state to prevent the multiple first quick clamps 4 on the lower side from interfering with the annular welding on the lower side, while the multiple first quick clamps 4 on the upper side are in the first state, and the cover shell 2 is reliably pressed on the bottom plate 1, which can also ensure that the cover shell 2 is pressed without interfering with the annular welding on the lower side, thereby ultimately completing the annular welding uninterruptedly and without interfering with the welding equipment, thereby ensuring the welding quality and efficiency.

[0040] That is to say, a multi-section distributed clamping device for a water-cooled plate provided in an embodiment of the present invention can realize uniform pressing of the outer edges and inner edges of the two plate bodies 100, which not only ensures sufficient clamping points so that the two plate bodies 100 can be reliably clamped on the base plate 1, avoiding the problem of deformation of the water-cooled plate after clamping during welding, but also avoids interference with the welding equipment during circular welding, thereby ensuring welding quality and efficiency.

[0041] It is easy to understand that the bosses formed at the outer edge of the cover shell 2 are of equal height. The bosses formed at the outer edge of the annular cover 3 are directly pressed on the bottom plate 1, and the bosses formed at the inner edge of the annular cover 3 are directly pressed on the plate body 100. Therefore, the thickness of the outer boss is higher than that of the inner boss. In addition, after welding, the plurality of first quick clamps 4 and the plurality of second quick clamps 5 are released from pressing, and the cover shell 2, the annular cover 3 and the welded water-cooled plate are successively removed, and the above steps are repeated to complete the assembly of the next water-cooled plate.

[0042] Exemplarily, the positioning pin is inserted into the positioning hole of the bottom plate 1. The cover 2 is spaced apart from the protruding portion 200, so that the protruding portion 200 can be avoided from being squeezed.

[0043] In order to ensure that during the annular welding process, when the welding equipment welds the upper side of the plate body 100 or the lower side of the plate body 100, the force position of the cover shell 2 remains consistent in both working conditions to ensure consistent welding effects, in the first direction, multiple first quick clamps 4 are symmetrically arranged along the central axis of the avoidance hole 11, and the output end of each first quick clamp 4 is used to press on the central axis of the cover shell 2.

[0044] In addition, the inner edge of the annular cover 3 and the outer edge of the housing 2 are both inclined surfaces 9, and the distance between the two inclined surfaces 9 gradually decreases in the direction toward the bottom plate 1. The inclined surface 9 can reduce the risk of interference between the welding equipment and the annular cover 3 and the housing 2 during the annular welding process.

[0045] In this embodiment, a T-bolt 10 is provided on the output end of the first quick clamp 4 and the output end of the second quick clamp 5, and a nut is provided at one end of the T-bolt 10 facing the housing 2 or the annular housing 3. The T-bolt 10 has a large structural strength and a large nut area, and is convenient for pressing the housing 2 or the annular housing 3.

[0046] It should be noted that the first quick-release clamp 4 and the second quick-release clamp 5 are both conventional structures in the art, and their specific structures are not described in detail herein.

[0047] Combination Figure 3 and Figure 4 As shown, the housing 2 includes a plurality of housing units 21 arranged sequentially along a first direction.

[0048] In the above embodiment, the cover shell 2 is configured as a plurality of segmented cover shell units 21, which can reduce the difficulty of processing the cover shell 2, ensure the consistency of the edge height of the cover shell 2, and ensure uniform pressing of the inner edge of the plate body 100.

[0049] Exemplarily, a gap is formed between two adjacent housing units 21 .

[0050] Furthermore, the clamping assembly also includes a plurality of pressure plates 7, one end of each pressure plate 7 is located on a cover unit 21, and the other end of each pressure plate 7 is located on another adjacent cover unit 21. When the first quick clamp 4 is in the first state, the output end of the first quick clamp 4 is pressed against a corresponding pressure plate 7.

[0051] In the above embodiment, on the one hand, the pressing plate 7 can increase the pressing area of ​​the first quick clamp 4 when pressing, ensure the uniformity of the cover unit 21 when pressing, and avoid the cover 2 being damaged by concentrated pressing. On the other hand, the first quick clamp 4 can press two cover units 21 at the same time, improving the pressing quality.

[0052] Exemplarily, the pressing plate 7 extends along the first direction.

[0053] In addition, the clamping assembly further includes a plurality of positioning plates 8 , one end of each positioning plate 8 is detachably mounted on the base plate 1 via a plurality of bolts, and the other end of each positioning plate 8 is detachably mounted on the cover unit 21 via a plurality of bolts.

[0054] It is easy to understand that the positioning plate 8 can be accurately positioned on the base plate 1 through multiple bolts, and the cover unit 21 is installed on the positioning plate 8, so that the cover unit 21 can finally be accurately positioned relative to the base plate 1, ensuring that the cover unit 21 can be accurately pressed onto the plate body 100.

[0055] Similarly, in this embodiment, the annular cover 3 includes two U-shaped portions 31 and a plurality of strip-shaped portions 32 , and the plurality of strip-shaped portions 32 are located on the two U-shaped portions 31 .

[0056] It is easy to understand that the two U-shaped portions 31 and the multiple strip portions 32 can be surrounded to form an annular structure, which can also reduce the processing difficulty when pressing the outer edge of the plate body 100 and ensure uniform pressing of the outer edge of the plate body 100.

[0057] Exemplarily, both the U-shaped portion 31 and the strip-shaped portion 32 have through holes or notches for avoiding the positioning pins.

[0058] Furthermore, the output ends of the plurality of second quick clamps 5 are used to press the U-shaped portion 31 or the U-shaped portion 31 and the corresponding strip portion 32, and the output ends of the plurality of second quick clamps 5 are fixedly connected to the strip portion 32 through the connecting block 51. That is, the output ends of the second quick clamps 5 at the edge are separated from the U-shaped portion 31, and the U-shaped portion 31 needs to be put in place in advance before pressing. The strip portion 32 located in the middle is fixedly connected to the output end of the corresponding second quick clamp 5, and the strip portion 32 does not need to be put in place in advance before pressing, thereby improving efficiency.

[0059] It should be noted that the shapes and quantities of the multiple cover units 21 and the multiple strip portions 32 provided by the present invention can be arranged regularly and neatly according to the specific structure of the water-cooling plate, thereby reducing the difficulty of assembly and processing costs.

[0060] In one implementation of the present invention, an annular groove 12 is provided on the bottom plate 1 . The annular groove 12 is located outside the avoidance hole 11 and directly faces the annular welding space 6 . An inert gas is connected to the annular groove 12 .

[0061] It is easy to understand that when the two plates 100 are placed on the base plate 1, the plate 100 will seal the annular groove 12. At this time, by filling the annular groove 12 with inert gas, not only can the welding heat be taken away, but also local deformation can be prevented and oxidation can be inhibited.

[0062] By way of example, the inert gas may be nitrogen or helium.

[0063] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-stage distributed clamping device for a water-cooled plate, characterized in that: The distributed clamping device comprises a base plate (1) and a clamping assembly; The bottom plate (1) is provided with a position-avoiding hole (11) and a positioning pin, the position-avoiding hole (11) extending along a first direction, the position-avoiding hole (11) being used to accommodate a protruding portion (200) of a plate body (100), and a plurality of positioning pins being arranged at intervals along the circumference of the position-avoiding hole (11) to surround and position two plate bodies (100); The clamping assembly comprises a cover shell (2), an annular cover (3), a plurality of first quick clamps (4) and a plurality of second quick clamps (5); the cover shell (2) is used to cover a protruding portion (200) of another plate body (100), and the outer edge of the cover shell (2) is used to press the other plate body (100); the outer edge of the annular cover (3) is pressed on the base plate (1); the inner edge of the annular cover (3) is used to press the other plate body (100), and the inner edge of the annular cover (3) and the outer edge of the cover shell (2) are arranged at intervals to form an annular welding space (6); the plurality of A first quick clamp (4) and a plurality of second quick clamps (5) are arranged on the base plate (1) at intervals along the annular cover (3), and extend along both sides of the avoidance hole (11). Each of the first quick clamps (4) is configured as follows: when the first quick clamp (4) is in a first state, the output end of the first quick clamp (4) is pressed against the cover shell (2); when the first quick clamp (4) is in a second state, the output end of the first quick clamp (4) is spaced from the annular welding space (6), and the output end of each of the second quick clamps (5) is used to press against the annular cover (3).

2. A multi-stage distributed clamping device for a water-cooled plate according to claim 1, characterized in that: The housing (2) comprises a plurality of housing units (21) arranged in sequence along a first direction.

3. The multi-stage distributed clamping device for a water-cooled plate according to claim 2, characterized in that: The clamping assembly further comprises a plurality of pressing plates (7), one end of each pressing plate (7) being located on one of the housing units (21), and the other end of each pressing plate (7) being located on another adjacent housing unit (21); when the first quick clamp (4) is in the first state, the output end of the first quick clamp (4) is pressed against the corresponding pressing plate (7).

4. The multi-stage distributed clamping device for a water-cooled plate according to claim 2, characterized in that: The clamping assembly further comprises a plurality of positioning plates (8), one end of each positioning plate (8) being detachably mounted on the base plate (1) via a plurality of bolts, and the other end of each positioning plate (8) being detachably mounted on the cover unit (21) via a plurality of bolts.

5. The multi-stage distributed clamping device for a water-cooled plate according to claim 1, characterized in that: The annular cover (3) comprises two U-shaped portions (31) and a plurality of strip-shaped portions (32), wherein the plurality of strip-shaped portions (32) are located on the two U-shaped portions (31).

6. The multi-stage distributed clamping device for a water-cooled plate according to claim 5, characterized in that: The output ends of the plurality of second quick clamps (5) are used to press the U-shaped portion (31) or the U-shaped portion (31) and the corresponding strip portion (32), and the output ends of the plurality of second quick clamps (5) are fixedly connected to the strip portion (32) via a connecting block (51).

7. The multi-stage distributed clamping device for a water-cooled plate according to claim 1, characterized in that: The bottom plate (1) is provided with an annular groove (12), the annular groove (12) is located outside the avoidance hole (11) and directly faces the annular welding space (6), and an inert gas is connected to the annular groove (12).

8. A multi-stage distributed clamping device for a water-cooled plate according to any one of claims 1 to 7, characterized in that: In the first direction, a plurality of the first quick clamps (4) are symmetrically arranged along the central axis of the avoidance hole (11), and the output end of each of the first quick clamps (4) is used to be pressed onto the central axis of the cover shell (2).

9. A multi-stage distributed clamping device for a water-cooled plate according to any one of claims 1 to 7, characterized in that: The inner edge of the annular cover (3) and the outer edge of the cover shell (2) are both inclined surfaces (9), and the distance between the two inclined surfaces (9) gradually decreases in the direction toward the bottom plate (1).

10. A multi-stage distributed clamping device for a water-cooled plate according to any one of claims 1 to 7, characterized in that: A T-bolt (10) is provided on the output end of the first quick clamp (4) and the output end of the second quick clamp (5), and one end of the T-bolt (10) facing the housing (2) or the annular housing (3) is a nut.