Welding equipment

Abstract

The utility model discloses welding equipment, and belongs to the technical field of seal welding. The liquid cooling plate welding equipment comprises a displacement mechanism, a pressing mechanism and a laser welding mechanism, a first displacement unit of the displacement mechanism drives a to-be-welded workpiece to move to a welding station in the first direction, and the opposite position of the to-be-welded workpiece and a pressing plate of the pressing mechanism can be changed in the first direction; the pressing plate can press different welding portions of the to-be-welded workpiece for multiple times, meanwhile, the laser welding mechanism can weld the different welding portions of the to-be-welded workpiece for multiple times through the through groove in the pressing plate, and welding of all the welding portions can be completed after the to-be-welded workpiece is fed on the equipment at a time. And closed annular welding seam welding of the to-be-welded workpiece can be achieved, the automation degree is high, and the welding efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing welding, and in particular relates to welding equipment. Background Art

[0002] In the power battery system, the operation of the battery will generate excess heat. In order to effectively deal with this heat,

[0003] Liquid cooling plates are used as the medium for the battery and module to contact their surfaces in order to transfer heat. The liquid cooling plate takes away the heat through the coolant in the internal flow channel, achieving effective heat dissipation and control. Therefore, liquid cooling plates play an important role in power battery systems.

[0004] In the design process of traditional liquid cooling plates, copper tubes are generally buried in aluminum substrates, that is, the aluminum substrate is milled with computer numerical control technology, and then the copper tubes that have been bent into shape are pressed onto the aluminum substrate by a punching machine, and then brazing is performed. However, the overall annealing of the liquid cooling plate will lead to a decrease in strength, and brazing requires the use of flux, which has a negative impact on the life of the liquid cooling plate. In contrast, laser welding, as a fusion welding process, provides an effective solution to avoid the reduction in strength caused by high-temperature heating of aluminum in a brazing furnace. Chinese patent document 202322454910.4 discloses a liquid cooling plate welding device, which includes a base, a clamping mechanism, and a laser welding machine. Before the liquid cooling plate welding device is pressed, it is necessary to first place the pressing plate on the liquid cooling plate, align the edges of the liquid cooling bottom plate and the liquid cooling tube plate body, and then press down the quick clamp, and finally start the laser welding machine for welding, which replaces the traditional brazing welding method. However, the liquid cooling plate welding device also has certain defects. In the device, the liquid cooling plate has only one fixed position on the base for clamping and processing. The laser welding machine can only weld the liquid cooling plate at one position, and cannot complete the closed annular weld of the liquid cooling plate. It is necessary to seal the remaining area to be sealed in the subsequent process, and welding is time-consuming and inefficient. In addition, the clamping mechanism and the laser welding machine in the device are located on the same side of the liquid cooling plate for operation, and they will affect each other's operating space. Therefore, the clamping mechanism is set at the edge of the base to avoid affecting the laser welding machine's welding of the liquid cooling plate. However, the clamping mechanism can only press the four sides of the pressure plate liquid cooling plate at this time, and cannot ensure the degree of clamping between the top plate and the bottom plate of the liquid cooling plate on both sides of the welding through hole. Utility Model Content

[0005] In view of one or more of the above defects or improvement needs of the prior art, the utility model provides a welding device, which can realize the closed annular weld welding of the workpiece to be welded, has a high degree of automation and high welding efficiency.

[0006] To achieve the above object, the present utility model provides a liquid cooling plate welding device, which includes a displacement mechanism comprising a first displacement unit for carrying the workpiece to be welded and capable of driving the workpiece to be welded to move along a first direction to a welding station;

[0007] A pressing mechanism disposed corresponding to the welding station, the pressing mechanism including a pressing plate for pressing the workpiece to be welded at the welding station, and the pressing plate being provided with a through groove corresponding to the welding portion of the workpiece to be welded;

[0008] A laser welding mechanism capable of emitting a welding beam through the through groove to weld the workpiece to be welded.

[0009] As a further improvement of the present utility model, the workpiece to be welded is a liquid cooling plate, and the through groove includes a first through groove, a second through groove and a third through groove which are sequentially arranged at intervals along the first direction.

[0010] As a further improvement of the present utility model, the displacement mechanism further includes a second displacement unit connected to the first displacement unit. The second displacement unit can move along the first direction under the drive of the first displacement unit, and the second displacement unit is used for installing the workpiece to be welded and can drive the workpiece to be welded to move along a second direction to be pressed by the pressing plate.

[0011] As a further improvement of the present utility model, an optical fiber sensor is provided on the second displacement unit for detecting the presence or absence of the workpiece to be welded;

[0012] and / or,

[0013] A proximity sensor is provided on the second displacement unit for detecting the placement positions of the top plate and the bottom plate of the workpiece to be welded.

[0014] As a further improvement of the present utility model, a positioning block is provided at the loading position of the workpiece to be welded for rough positioning of the installation of the workpiece to be welded.

[0015] As a further improvement of the present utility model, a positioning pin is provided on the second displacement unit for precise positioning of the installation of the workpiece to be welded.

[0016] As a further improvement of the present utility model, the pressing mechanism further includes a pressing block installed on the pressing plate for pressing the workpiece to be welded at the welding station.

[0017] As a further improvement of the present utility model, there are a plurality of pressing blocks which are arranged on both sides of the through groove along a direction parallel to the through groove.

[0018] As a further improvement of the present utility model, a spring is provided between the pressing block and the pressing plate.

[0019] As a further improvement of the present utility model, a guiding shaft is provided on the pressing block, and a guiding sleeve corresponding to the guiding shaft is provided on the pressing plate.

[0020] As long as the above improved technical features do not conflict with each other, they can be combined with each other.

[0021] Generally speaking, compared with the prior art, the beneficial effects of the above technical solutions conceived by the present utility model include:

[0022] (1) For the welding equipment of the present utility model, the first displacement unit of the displacement mechanism drives the workpiece to be welded to move along the first direction to the welding station, and the facing position between the workpiece to be welded and the pressing plate of the pressing mechanism can be changed along the first direction, so that the pressing plate can press the different welding parts of the workpiece to be welded multiple times. At the same time, the laser welding mechanism can perform multiple weldings on different welding parts of the workpiece to be welded through the through slots on the pressing plate, so that all welding parts of the workpiece to be welded can be welded after being loaded onto the welding equipment once, and the closed annular weld of the workpiece to be welded can be realized, with high automation and high welding efficiency.

[0023] (2) For the welding equipment of the present utility model, by restricting the workpiece to be welded as a liquid cooling plate, the first through slot, the second through slot and the third through slot are sequentially arranged at intervals along the first direction on the pressing plate, so that the liquid cooling plate can be pressed and welded at least three different welding parts along the first direction under the drive of the first moving unit.

[0024] (3) For the welding equipment of the present utility model, a second displacement unit connected to the first displacement unit is provided. The second displacement unit is used to install the workpiece to be welded, and the pressing force on the workpiece to be welded can be adjusted by adjusting the relative distance between the workpiece to be welded and the pressing plate; further, the installation of the workpiece to be welded is roughly positioned by the positioning block, and the installation of the workpiece to be welded is accurately positioned by the positioning pin to ensure the installation accuracy of the workpiece to be welded on the second displacement unit.

[0025] (4) For the welding equipment of the present utility model, by arranging pressing blocks parallel to the through slots on both sides of the through slots, the two sides of the welding part of the workpiece to be welded can be completely pressed, so that the top plate and the bottom plate at the welding part of the workpiece to be welded are closely attached, ensuring the welding quality of the workpiece to be welded.

[0026] (5) For the welding equipment of the present utility model, by arranging a spring between the pressing block and the pressing plate, the pressing plate moves along the direction of the pressing force when being pressed, and at the same time, the spring can buffer the pressing force between the liquid cooling plate and the pressing block during the pressing process, avoiding damage to the liquid cooling plate caused by excessive instantaneous pressing force. Brief Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 is a schematic diagram of the overall structure of the liquid cooling plate welding device in the embodiment of the present invention;

[0029] Figure 2 is a schematic diagram of the structure of the first displacement unit in the embodiment of the present invention;

[0030] Figure 3 is a schematic diagram of the structure of the second displacement unit in the embodiment of the present invention;

[0031] Figure 4 is a schematic diagram of the structure of the pressing mechanism in the embodiment of the present invention;

[0032] Figure 5 is a schematic diagram of the structure of the pressing plate in the embodiment of the present invention;

[0033] Figure 6 is a schematic diagram of the structure of the pressing block in the embodiment of the present invention.

[0034] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0035] 100, displacement mechanism; 110, first displacement unit; 120, second displacement unit; 121, positioning pin; 200, pressing mechanism; 210, pressing plate; 211, through groove; 2111, first through groove; 2112, second through groove; 2113, third through groove; 212, guide sleeve; 220, pressing block; 221, guiding shaft; 222, baffle; 230, spring; 300, laser welding mechanism; 400, workpiece to be welded. Detailed Embodiments

[0036] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following will further describe the present invention in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used 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.

[0037] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0038] In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0039] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0041] Embodiment:

[0042] Please refer to Figures 1 to 6, in the preferred embodiment of the present utility model, the welding device includes a displacement mechanism 100, a pressing mechanism 200, and a laser welding mechanism 300. Among them, the displacement mechanism 100 includes a first displacement unit 110. The first displacement unit 110 is used to carry the workpiece to be welded 400 and can drive the workpiece to be welded 400 to move along the first direction to the welding station; the pressing mechanism 200 is arranged corresponding to the welding station. The pressing mechanism 200 includes a pressing plate 210. The pressing plate 210 is used to press the workpiece to be welded 400 at the welding station. A through groove 211 is arranged on the pressing plate 210 corresponding to the welding part of the workpiece to be welded 400; the laser welding mechanism 300 can emit a welding beam to weld the workpiece to be welded 400 through the through groove 211.

[0043] In this embodiment, the first direction is parallel to the plane where the welding surface of the workpiece to be welded 400 is located, preferably the length direction of the welding surface. The welding station is larger than the welding position range of the workpiece to be welded 400 and includes multiple predetermined welding stations of the workpiece to be welded. The workpiece to be welded 400 can move along the first direction to be pressed and welded at multiple predetermined welding stations.

[0044] Specifically, when sealing welding is performed on the workpiece 400 to be welded, the first displacement unit 110 drives the workpiece 400 to be welded it carries to move from the loading position to the first predetermined welding station. At this time, part of the welding part of the workpiece 400 to be welded is directly opposite to the through groove 211 at the corresponding position of the pressure plate 210, and the workpiece 400 to be welded is further pressed by controlling the relative distance between the pressure plate 210 and the workpiece 400 to be welded. After the pressing is completed, the laser welding mechanism 300 emits a welding beam on the side of the pressure plate 210 away from the workpiece 400 to be welded through the through groove 211 to weld the welding part on the first predetermined welding station of the workpiece 400 to be welded. After the welding at the first predetermined welding station is completed, the relative distance between the pressure plate 210 and the workpiece 400 to be welded is controlled to release the clamping state of the workpiece 400 to be welded. Using the same process, the first displacement unit 110 drives the workpiece 400 to be welded it carries to move along the first direction to the second predetermined welding station, the third predetermined welding station... for clamping and welding. After the welding of each welding part of the workpiece 400 to be welded is completed, the first displacement unit 110 moves it to the starting loading position. The welding equipment of the utility model drives the workpiece 400 to be welded to move to the welding station along the first direction through the first displacement unit 110 of the displacement mechanism 100, and can change the opposite position of the workpiece 400 to be welded and the pressure plate 210 along the first direction, so that the pressure plate 210 can press the different welding parts of the workpiece 400 to be welded for multiple times, and at the same time, the laser welding mechanism 300 can perform multiple welding on the different welding parts of the workpiece 400 to be welded through the through groove 211 on the pressure plate 210, so that the workpiece 400 to be welded can complete the welding of all welding parts after the welding equipment is loaded once, and the closed annular weld of the workpiece 400 to be welded can be realized, with high automation and high welding efficiency.

[0045] In addition, in this embodiment, the displacement mechanism 100 and the laser welding mechanism 300 are arranged on both sides of the clamping mechanism 200, separating the clamping process and the welding process of the workpiece 400 to be welded, so that the displacement mechanism 100 and the laser welding mechanism 300 do not affect each other, and the laser welding mechanism 300 has sufficient operating space for welding.

[0046] Further preferably, please refer to Figure 1 and Figure 3 The displacement mechanism 100 also includes a second displacement unit 120 connected to the first displacement unit 110, which can move along the first direction driven by the first displacement unit 110, and the second displacement unit 120 is used to install the workpiece 400 to be welded, and can drive the workpiece 400 to be welded to move along the second direction until it is pressed against the pressing plate 210.

[0047] In this preferred embodiment, the second direction is perpendicular to the plane of the welding surface of the workpiece 400 to be welded. The first displacement unit 110 can move the second displacement unit 120 on which the workpiece 400 to be welded is installed to the welding station, and can move out to the loading position of the workpiece 400 to be welded after the workpiece 400 to be welded is welded; the second displacement unit 120 can press the workpiece 400 to be welded against the pressing plate 210 by driving the workpiece 400 to be welded closer to the pressing plate 210 in the second direction, and can release the pressing state of the workpiece 400 to be welded by driving the workpiece 400 to be welded away from the pressing plate 210 in the second direction. In this preferred embodiment, the second displacement unit 120 can also adjust the pressing force on the workpiece 400 by adjusting the relative distance between the workpiece 400 to be welded and the pressing plate 210.

[0048] In actual setting, a slider is arranged at the bottom of the second displacement unit 120, which is correspondingly installed on a slide rail arranged in the first direction, and the second displacement unit 120 is connected to the first displacement unit 110 and can move along the slide rail under the drive of the first displacement unit 110.

[0049] Preferably, please refer to Figure 2 , the first displacement unit 110 adopts a ball screw drive mode.

[0050] Preferably, the second displacement unit 120 is a worm gear lift linkage platform, which is driven by a motor. A plurality of worm gear lifts are connected in series through couplings and right angle commutators, and can drive the workpiece 400 to be welded to move up and down smoothly.

[0051] Preferably, a proximity sensor is arranged on the second displacement unit 120 to detect the placement positions of the top plate and the bottom plate of the workpiece to be welded, so as to prevent the top plate and the bottom plate of the workpiece to be welded from being placed in the wrong way.

[0052] Preferably, an optical fiber sensor is arranged on the second displacement unit 120 to detect the presence or absence of the workpiece 400 to be welded.

[0053] Preferably, a positioning block is arranged at the loading position of the workpiece 400 to be welded for rough positioning of the installation of the workpiece 400 to be welded. Preferably, a positioning pin 121 is arranged on the second displacement unit 120 for precise positioning of the installation of the workpiece 400 to be welded.

[0054] Specifically, the installation process of the workpiece 400 to be welded is as follows: The second displacement unit 120 first detects whether the workpiece 400 to be welded is installed through the fiber optic sensor. Then, when the top plate and the bottom plate of the workpiece 400 to be welded are installed on the second displacement unit 120, the proximity sensor is used to ensure the correct placement order of the top plate and the bottom plate of the workpiece 400 to be welded, and the rough positioning of the installation of the workpiece 400 to be welded is carried out through the positioning block, and the precise positioning of the installation of the workpiece 400 to be welded is carried out through the positioning pin 121 to ensure the installation accuracy of the workpiece 400 on the second displacement unit 120.

[0055] Further preferably, please refer to Figure 3 , the workpiece 400 to be welded is a liquid cooling plate, and the through grooves 211 include a first through groove 2111, a second through groove 2112, and a third through groove 2113 that are sequentially arranged at intervals in the first direction. As shown in Figure 4 , 5 , the through grooves 211 are arranged at intervals to meet the connection strength of the pressing plates 210 between the through grooves 211, ensure the structural stability of the pressing plates 210, and prevent the structure of the pressing plates 210 from deforming when pressed.

[0056] In this embodiment, the first through groove 2111, the second through groove 2112, and the third through groove 2113 are arranged at intervals in the first direction. The liquid cooling plate is driven by the first displacement unit 110 to move three times in the first direction to the first predetermined welding station, the second predetermined welding station, and the third predetermined welding station respectively for pressing and welding of different welding parts.

[0057] Generally speaking, the structure of the liquid cooling plate includes a top plate and a bottom plate connected with a liquid cooling plate joint. By laser welding the welding area of the liquid cooling plate, the top plate and the bottom plate can be connected together to jointly define the cooling chamber and the cooling path. The cooling liquid flows into the cooling chamber from the liquid cooling plate joint and circulates along the cooling path. Therefore, at least one closed annular welding must be carried out around the top plate and the bottom plate of the liquid cooling plate to form a sealing structure to prevent the leakage of the cooling liquid.

[0058] In the preferred embodiment, in order to facilitate the formation of a complete sealing structure of the liquid cooling plate on this welding equipment, the through grooves 211 on the pressing plate 210 include at least two second through grooves 2112. Among them, the two second through grooves 2112 extend along the length direction of the workpiece 400 to be welded, corresponding to the two transverse welding parts of the workpiece 400 to be welded. The first through groove 2111 and the third through groove 2113 extend along the width direction of the workpiece 400 to be welded, corresponding to the longitudinal welding parts on both sides of the workpiece 400 to be welded, so that a complete sealing structure can be formed after the top plate and the bottom plate of the liquid cooling plate are welded through these four through grooves 211 of this welding equipment.

[0059] Preferably, the second through groove 2112 extends along the length direction of the workpiece 400 to be welded, corresponding to the transverse welding part of the workpiece 400 to be welded; further preferably, a plurality of second through grooves 2112 are provided, corresponding one by one to the transverse welding parts of the liquid cooling plate, so that after the liquid cooling plate and the pressing plate 210 are pressed against each other, the laser welding mechanism 300 can weld all the transverse welding parts of the liquid cooling plate at one time, reducing the number of times the first displacement unit 110 adjusts the position of the liquid cooling plate, reducing the operation time, and shortening the process cycle.

[0060] In a specific preferred embodiment, the welding process of the liquid cooling plate is as follows: First, the first displacement unit 110 moves the liquid cooling plate to the first predetermined welding station, the second displacement unit 120 drives the liquid cooling plate to gradually approach the pressing plate 210 to press the two together, and the laser welding mechanism 300 welds all the transverse welding parts of the liquid cooling plate. Then, the first displacement unit 110 moves the liquid cooling plate to the second predetermined welding station and the third predetermined welding station respectively to press and weld the longitudinal welding parts on both sides of the liquid cooling plate, completing the welding of the entire liquid cooling plate. In this preferred embodiment, by first welding all the longer welding parts of the liquid cooling plate, that is, the transverse welding parts, the top plate and the bottom plate of the liquid cooling plate are tightly connected, avoiding the dislocation of the top plate and the bottom of the liquid cooling plate when the liquid cooling plate is pressed twice or three times subsequently.

[0061] Further preferably, please refer to Figure 3 , the pressing mechanism 200 further includes a pressing block 220, and the pressing block 220 is installed on the pressing plate 210 and is used to press the workpiece 400 to be welded at the welding station. Preferably, the pressing block 220 can be strip-shaped or arc-shaped, and the specific shape is not limited.

[0062] Preferably, there are a plurality of pressing blocks 220, which are arranged on both sides of the through groove 211 along the direction parallel to the through groove 211, and can completely press both sides of the welding part of the workpiece 400 to be welded, so that the bottom and the top plate at the welding part of the workpiece 400 to be welded are tightly attached, thereby ensuring the welding quality.

[0063] Preferably, the pressing block 220 can be made of rubber material, and can buffer the pressing force between the workpiece 400 to be welded and the pressing block 220 during the pressing process.

[0064] Preferably, a spring 230 is provided between the pressing block 220 and the pressing plate 210, and can buffer the pressing force between the workpiece 400 to be welded and the pressing block 220 during the pressing process.

[0065] Preferably, as Figure 4 shown, a guide shaft 221 is provided on the pressing block 220, and a guide sleeve 212 is provided on the pressing plate 210 corresponding to the guide shaft 221, so that the pressing block 220 can move along the direction of the pressing force when being pressed.

[0066] Preferably, the axial directions of the guide shaft 221 and the guide sleeve 212 are parallel to the second direction.

[0067] Specifically preferably, after the guide shaft 221 on the pressure block 220 passes through the guide sleeve 212 on the pressing plate 210, a baffle 222 is installed at the end of the guide shaft 221 for position limitation, ensuring that the guide shaft 221 will not disengage from the guide sleeve 212 when moving along the guide sleeve 212, that is, ensuring that the pressure block 220 can move along the guide sleeve 212 during the working state and will not fall off the pressing plate 210 in the non-working state.

[0068] In a specific preferred embodiment, as Figure 6 shown, a guide shaft 221 and a baffle 222 are provided in the middle of the pressure block 220, and springs 230 are symmetrically arranged on both sides of the guide shaft 221. The guide shaft 221 is matched and connected with the guide sleeve 212 on the pressing plate 210, and the baffle 222 limits the guide shaft 221 on the other side of the pressing plate 210, installing the pressure block 220 on the pressing plate 210, and the springs 230 are connected to the corresponding positions of the pressing plate 210.

[0069] In the welding device of the present invention, the first displacement unit 110 of the displacement mechanism 100 drives the workpiece to be welded 400 to move along the first direction to the welding station, and can change the facing position of the workpiece to be welded 400 and the pressing plate 210 along the first direction, so that the pressing plate 210 can press different welding parts of the workpiece to be welded 400 multiple times. At the same time, the laser welding mechanism 300 can perform multiple weldings on different welding parts of the workpiece to be welded 400 through the through groove 211 on the pressing plate 210, enabling all welding parts of the workpiece to be welded 400 to be welded after being loaded once on this welding device, and can realize the closed circular weld of the workpiece to be welded 400, with high automation and high welding efficiency.

[0070] Those skilled in the art can easily understand that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding device, characterized in that, Comprising: A displacement mechanism, including a first displacement unit, which is used to carry the workpiece to be welded and can drive the workpiece to be welded to move to the welding station along a first direction; A pressing mechanism, arranged corresponding to the welding station, the pressing mechanism includes a pressing plate, the pressing plate is used to press the workpiece to be welded at the welding station, and the pressing plate is provided with a through groove corresponding to the welding part of the workpiece to be welded; A laser welding mechanism, which can emit a welding beam to weld the workpiece to be welded through the through groove.

2. The welding device according to claim 1, characterized in that, The workpiece to be welded is a liquid cooling plate, and the through groove includes a first through groove, a second through groove and a third through groove that are sequentially arranged at intervals along the first direction.

3. The welding device according to claim 2, wherein, The displacement mechanism further includes a second displacement unit connected to the first displacement unit, the second displacement unit can move along the first direction under the drive of the first displacement unit, the second displacement unit is used to install the workpiece to be welded, and can drive the workpiece to be welded to move along a second direction to be pressed against the pressing plate.

4. The welding equipment according to claim 3, wherein An optical fiber sensor is arranged on the second displacement unit for detecting the presence or absence of the workpiece to be welded; And / or A proximity sensor is arranged on the second displacement unit for detecting the placement positions of the top plate and the bottom plate of the workpiece to be welded.

5. The welding device according to any one of claims 1 to 4, characterized in that A positioning block is arranged at the loading position of the workpiece to be welded for rough positioning of the installation of the workpiece to be welded.

6. The welding equipment according to claim 3 or 4, characterized in that, A positioning pin is arranged on the second displacement unit for precise positioning of the installation of the workpiece to be welded.

7. The welding device according to any one of claims 1 to 4, characterized in that, The pressing mechanism further includes a pressing block, and the pressing block is installed on the pressing plate for pressing the workpiece to be welded at the welding station.

8. The welding device according to claim 7, characterized in that, There are a plurality of the pressing blocks, which are arranged on both sides of the through groove along the direction parallel to the through groove.

9. The welding device according to claim 8, wherein, A spring is arranged between the pressing block and the pressing plate.

10. The welding equipment according to claim 8 or 9, characterized in that, A guide shaft is arranged on the pressing block, and a guide sleeve is arranged on the pressing plate corresponding to the guide shaft.

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