Follow-up pressing mechanism for laser welding of liquid cooling plate

Abstract

The invention discloses a follow-up pressing mechanism for liquid cooling plate laser welding, and belongs to the technical field of welding fixtures, the follow-up pressing mechanism comprises a plurality of assembly frames, a communication seat is arranged between the adjacent assembly frames, sealing mechanisms are arranged between the two sides of the communication seat and the assembly frames, and circulation of heat exchange medium circulation cavities of the assembly frames on the two sides is controlled through the sealing mechanisms. According to the clamp, when the screwing part is rotated to drive the communicating air base to rotate, the communicating air base can enable the air inlet groove to communicate with the communicating cover, and after the external air draft part is started, air flow can enter the cover body through the clamping face of the clamp body and is sequentially fed into the communicating cover and the air channel of the assembly frame through the air draft communicating pipe; when the communicating cover is separated from the air inlet groove through rotation, the communicating cover can be rotated into the stroke groove, the air draft duct is closed, airflow adsorbed by the welding throat is cut off, debris and welding smoke can be adsorbed in a follow-up mode, the adsorption function can be independently started and stopped through a single supporting mechanism, and interference of a non-welding area is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of welding jigs, and particularly relates to a follow-up pressing mechanism for laser welding of liquid cooling plates. Background Art

[0002] Laser welding of liquid cooling plates is a technology that uses laser as a heat source to weld components of liquid cooling plates (usually used for heat dissipation of electronic devices) together. This welding method has the advantages of high precision, high efficiency, low heat-affected zone, and good welding quality. A liquid cooling plate is a radiator used to cool electronic devices. It absorbs heat through the coolant flowing inside and then takes away the heat to achieve the purpose of heat dissipation. Liquid cooling plates are usually made of metals such as aluminum and copper, and these metal materials have good thermal conductivity.

[0003] The invention patent with the Chinese patent publication number: CN101376195B discloses a new type of laser welding pressing device for pressing and leveling plates during laser lap welding. It is installed on a gantry and includes a laser head, a Y-direction slide table, and front and rear pressing beams. Among them, the front and rear pressing beams are arranged above the workbench of the gantry in a vertically movable manner, and a plurality of pressing wheels are evenly distributed on the front and rear pressing beams respectively; the Y-direction slide table installed on the cross beam of the gantry is located between the front and rear pressing beams and can reciprocate in the Y direction. A right pressing roller that can move up and down is provided on one side of the Y-direction slide table, and a laser head and a mounting seat are provided on the other side. A left pressing roller that can move up and down is provided on the mounting seat; the laser head and the left and right pressing rollers are linked with the Y-direction slide table. The laser head is located between the left and right pressing rollers and can reciprocate in the X and Z directions; the left and right pressing rollers and the pressing wheels on the front and rear sides enclose the working area of the laser head. The above solution can maintain the gap and flatness between thin and thick plates. However, during laser welding of liquid cooling plates, the traditional pressing and positioning devices generally have the following technical defects: serious smoke and dust pollution, and the metal vapor and splash particles generated during welding are easily diffused through the gaps of the open-type fixture. The existing equipment uses rigid air ducts for connection, and it is necessary to stop the machine to connect pipes during multi-station expansion, resulting in difficult modular expansion. Moreover, the air flow in the non-welding area during heat dissipation causes energy consumption waste, and there is room for improvement. Summary of the Invention

[0004] The purpose of the present invention is to propose a follow-up pressing mechanism for laser welding of liquid cooling plates to solve the problem of difficult modular expansion caused by the need to stop the machine to connect pipes during multi-station expansion when using rigid air ducts for connection.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A follow-up pressing mechanism for laser welding of liquid cooling plates includes a plurality of assembly frames, and a communication seat is provided between adjacent assembly frames. A sealing mechanism is provided between both sides of the communication seat and the assembly frames to control the circulation of the heat exchange medium flow chambers of the two-side assembly frames through the sealing mechanism. Multiple holes are provided at the top of the assembly frame, and multiple support mechanisms are arranged inside the holes. A fixture body is provided at the top of the support mechanism. The clamping position is adjusted and extended at the top of the assembly frame through the support mechanism. A control mechanism is provided at the bottom of the support mechanism, and the flow of gas in the support mechanism is controlled through the control mechanism.

[0006] As a further description of the above technical solution: The support mechanism includes a support sleeve. External threads are provided on the outside of the support sleeve, and the external threads are connected to internal threads provided on the inner side of the holes at the top of the assembly frame. Another set of internal threads is provided inside the support sleeve, and a threaded seat is threadedly connected to the internal threads of the support sleeve. A connecting column is connected to the top of the threaded seat, and the top of the connecting column is connected to the bottom of the fixture body.

[0007] As a further description of the above technical solution: A cover body is connected to the top of the support sleeve, and an air extraction connecting pipe is connected inside the cover body. The air extraction connecting pipe extends to the bottom of the support sleeve and is connected to the control mechanism. The air extraction connecting pipe extends outside the cover body and is connected to an air extraction part, and the air extraction part is arranged on one side outside the cover body.

[0008] As a further description of the above technical solution: The control mechanism includes a ventilation connecting base rotatably connected to the bottom of the support sleeve. A fixed ventilation base is sleeved outside the ventilation connecting base. A communication cover is connected to the inside of the fixed ventilation base. A travel groove for the communication cover to slide is provided on the outside of the ventilation connecting base. An air inlet groove is provided at the tail of the inner cavity of the travel groove, and circulating heat dissipation is achieved through the connection between the air inlet groove and the communication cover.

[0009] As a further description of the above technical solution: Limit convex blocks are connected to both sides of the inner cavity of the travel groove corresponding to the air inlet groove. The communication cover is limited by being moved into the end section of the travel groove. Limit convex blocks are connected to both sides of the inner cavity of the travel groove corresponding to the air inlet groove. The communication cover is limited by being moved into the end section of the travel groove.

[0010] As a further description of the above technical solution: A closed cover is connected to the top of the fixed ventilation base. A limit spring is connected to the inside of the closed cover, and the top of the limit spring is in contact with the bottom of the support sleeve. Ventilation nozzles are provided on both sides of the fixed ventilation base, and the ventilation nozzles are connected to the air duct openings on the inner side of the holes of the assembly frame.

[0011] As a further description of the above technical solution: The closing mechanism includes a closing panel which is connected to the outer side of the communication base. A through groove is formed on one side of the closing panel. A flap is rotatably connected to the inner cavity of the through groove. Rod bodies are connected to both sides of the flap, and the ends of the rod bodies are connected to turning rods. The turning rods are rotatably connected to the rotation grooves formed on one side of the closing panel. Pressing parts are connected to both sides of the assembly frame corresponding to the positions of the turning rods. After the communication base is connected to the assembly frame, the pressing parts press the turning rods to open the ventilation gap of the through groove.

[0012] As a further description of the above technical solution: The closing mechanism includes a closing panel which is connected to the outer side of the communication base. A through groove is formed on one side of the closing panel. A flap is rotatably connected to the inner cavity of the through groove. Rod bodies are connected to both sides of the flap, and the ends of the rod bodies are connected to turning rods. The turning rods are rotatably connected to the rotation grooves formed on one side of the closing panel. Pressing parts are connected to both sides of the assembly frame corresponding to the positions of the turning rods. After the communication base is connected to the assembly frame, the pressing parts press the turning rods to open the ventilation gap of the through groove.

[0013] As a further description of the above technical solution: A screwing part is connected to the bottom of the fixed air base. By rotating the screwing part, the fixed air base is driven to communicate with the air inlet groove.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: 1. In the present invention, when the communication air base is rotated by rotating the screwing part, the communication air base can connect the air inlet groove with the communication cover. When the external air extraction part is started, the air flow can enter the cover body through the clamping surface of the fixture body, and is successively sent into the communication cover and the air duct of the assembly frame through the air extraction connecting pipe. When the communication cover is separated from the air inlet groove by rotation, the communication cover can be turned into the stroke groove to close the air extraction air duct and cut off the air flow adsorbed by the welding fume, which is beneficial to adsorbing debris and welding fume by following the movement. The adsorption function of a single support mechanism can be independently started and stopped to avoid interference in non-welding areas.

[0015] 2. In the present invention, through the designed closing mechanism, when the communication base is inserted into the adjacent assembly frame, the assembly frame can be quickly installed and coupled through the bottom mounting parts. The pressing parts on one side of the assembly frame can drive the turning rods to rotate by contacting the turning rods. The rotation of the turning rods can drive the flap to open the through groove through the rod bodies. By opening the through groove, a ventilation gap can be formed. Through the series connection of multiple assembly frames, the dynamic negative pressure air duct can be expanded by using the closing mechanism, and the flap can be closed after disconnecting the assembly frame to prevent external dust from flowing back, realizing the flexible layout of the welding production line through modular expansion and improving the adjustment efficiency.

[0016] 3. In the present invention, the support sleeve can be rotated to make the external thread of the support sleeve engage with the internal thread of the assembly frame, which can drive the threaded seat to move along the axis. The connecting column can adjust the positioning height of the fixture body through the lifting of the threaded seat, facilitating the adaptation to the curved surface contour of the liquid cooling plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a follow-up pressing mechanism for laser welding of a liquid cooling plate according to the present invention; Figure 2 FIG. 2 is a schematic diagram of the disassembled structure of a follow-up pressing mechanism for laser welding of a liquid cooling plate according to the present invention; Figure 3 FIG. 3 is a schematic diagram of the disassembled structure of a follow-up pressing mechanism for laser welding of a liquid cooling plate according to the present invention from another angle; Figure 4 FIG. 4 is a schematic diagram of the disassembled structure of the support mechanism of a follow-up pressing mechanism for laser welding of a liquid cooling plate according to the present invention; Figure 5 FIG. 5 is a schematic diagram of the assembled structure of the support mechanism of a follow-up pressing mechanism for laser welding of a liquid cooling plate according to the present invention; Figure 6 FIG. 6 is a schematic diagram of the support mechanism of a follow-up pressing mechanism for laser welding of a liquid cooling plate according to the present invention from another angle; Figure 7 FIG. 7 is a schematic diagram of the structure of the sealing mechanism of a follow-up pressing mechanism for laser welding of a liquid cooling plate according to the present invention; Figure 8 FIG. 8 is a schematic diagram of the disassembled structure of the sealing mechanism of a follow-up pressing mechanism for laser welding of a liquid cooling plate according to the present invention; Figure 9 Proposed by the present invention Figure 8 Schematic diagram of the enlarged structure of part A in FIG. Figure 10 FIG. 9 is a schematic diagram of another angle structure of the communication seat of a follow-up pressing mechanism for laser welding of a liquid cooling plate according to the present invention.

[0018] LEGEND DESCRIPTION: 1. Assembly frame; 2. Connecting seat; 3. Support mechanism; 301. Support sleeve; 302. Cover body; 303. Air extraction part; 304. Connecting column; 305. Threaded seat; 306. Air extraction connecting pipe; 307. External thread; 4. Fixture main body; 5. Control mechanism; 501. Connecting air seat; 502. Fixed air seat; 503. Stroke groove; 504. Limit convex block; 505. Air inlet groove; 506. Sealing cover; 507. Limit spring; 508. Twisting part; 509. Connecting cover; 6. Sealing mechanism; 601. Sealing panel; 602. Extrusion part; 603. Through groove; 604. Rotation groove; 605. Flap; 606. Flap rod; 607. Rewinding bearing; 608. Fixed plate; 609. Telescopic rod; 610. Return spring; 7. Mounting part. Detailed implementation manner

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a follow-up pressing mechanism for laser welding of liquid cooling plates, including a plurality of assembly frames 1, and a connecting seat 2 is provided between adjacent assembly frames 1. A sealing mechanism 6 is provided between the two sides of the connecting seat 2 and the assembly frame 1, and the flow of the heat exchange medium flow chamber of the two-side assembly frame 1 is controlled through the sealing mechanism 6; A plurality of holes are opened at the top of the assembly frame 1, and a plurality of support mechanisms 3 are provided in the holes. A fixture main body 4 is provided at the top of the support mechanism 3. The clamping position is adjusted through the expansion of the support mechanism 3 at the top of the assembly frame 1, and a control mechanism 5 is provided at the bottom of the support mechanism 3 to control the flow of gas in the support mechanism 3.

[0021] Specifically: through the designed fixture main body 4, the fixture main body 4 can adjust the clamping point at the top of the assembly frame 1 through the bottom support mechanism 3, which is beneficial to adapting to the processing and positioning of liquid cooling plates of different sizes and improving the processing efficiency.

[0022] Please refer to Figures 4 - 6 , the support mechanism 3 includes a support sleeve 301. An external thread 307 is provided on the outside of the support sleeve 301, and the external thread 307 is connected to the internal thread provided on the inner side of the hole at the top of the assembly frame 1. Another internal thread is provided inside the support sleeve 301, and a threaded seat 305 is threadedly connected to the internal thread of the support sleeve 301. A connecting column 304 is connected to the top of the threaded seat 305, and the top of the connecting column 304 is connected to the bottom of the fixture main body 4; The top of the support sleeve 301 is connected to a cover body 302, and an air extraction connecting pipe 306 is connected inside the cover body 302. The air extraction connecting pipe 306 extends to the bottom of the support sleeve 301 and is connected to the control mechanism 5. The air extraction connecting pipe 306 extends outside the cover body 302 and is connected to an air extraction part 303, and the air extraction part 303 is arranged on one side outside the cover body 302; The control mechanism 5 includes that a ventilation base 501 is rotatably connected to the bottom of the support sleeve 301. A fixed wind seat 502 is sleeved outside the ventilation base 501. A communication cover 509 is connected to the inner side of the fixed wind seat 502. A travel groove 503 for the communication cover 509 to slide is opened on the outer side of the ventilation base 501. An air inlet groove 505 is opened at the tail of the inner cavity of the travel groove 503. Circulating heat dissipation is carried out through the connection of the air inlet groove 505 and the communication cover 509; Limit bumps 504 are connected to both sides of the inner cavity of the travel groove 503 corresponding to the air inlet groove 505 for limiting when the communication cover 509 is moved into the end section of the travel groove 503; A screwing part 508 is connected to the bottom of the fixed wind seat 502. The fixed wind seat 502 is driven to rotate by the screwing part 508 to communicate with the air inlet groove 505.

[0023] Specifically: during assembly, the support sleeve 301 can be rotated to make the external thread 307 of the support sleeve 301 engage with the internal thread of the assembly frame 1, so that the threaded seat 305 can be driven to move along the axis. The connecting column 304 can adjust the positioning height of the fixture body 4 through the lifting of the threaded seat 305. At the same time, when the screwing part 508 is rotated to drive the ventilation base 501 to rotate, the ventilation base 501 can communicate the air inlet groove 505 with the communication cover 509. When the external air extraction part 303 is started, the air flow can enter the cover body 302 through the clamping surface of the fixture body 4, and is successively sent into the communication cover 509 and the air duct of the assembly frame 1 through the air extraction connecting pipe 306. And when the communication cover 509 is separated from the air inlet groove 505 by rotation, the communication cover 509 can be rotated into the travel groove 503, so that the air extraction air duct can be closed, cutting off the air flow adsorbed by the welding fume, which is beneficial to adsorbing chips and welding fumes by following the movement, and the adsorption function of a single support mechanism 3 can be independently started and stopped to avoid interference in non-welding areas; Furthermore, through the setting of the external thread 307 on the outside of the support sleeve 301, it is convenient to quickly replace the support mechanism 3 and adapt to the assembly of liquid cooling plates with different thicknesses.

[0024] A closed cover 506 is connected to the top of the fixed wind seat 502. A limit spring 507 is connected to the inner side of the closed cover 506, and the top of the limit spring 507 is in contact with the bottom of the support sleeve 301.

[0025] Ventilation nozzles are arranged on both sides of the fixed wind seat 502, and the ventilation nozzles are connected to the inner side air duct openings of the holes in the assembly frame 1.

[0026] Please refer to Figures 8 - 9 , the closing mechanism 6 includes a closing panel 601, the closing panel 601 is connected to the outer side of the communicating base 2, a through groove 603 is provided on one side of the closing panel 601, a flap 605 is rotatably connected to the inner cavity of the through groove 603, rods are connected to both sides of the flap 605, and a turning rod 606 is connected to the end of the rod. The turning rod 606 is rotatably connected to a rotating groove 604 provided on one side of the closing panel 601. Pressing parts 602 are connected to both sides of the assembly frame 1 corresponding to the position of the turning rod 606. After the communicating base 2 is connected to the assembly frame 1, the pressing part 602 presses the turning rod 606 to open the ventilation gap of the through groove 603; A retractable bearing 607 is provided outside the rod. The retractable bearing 607 is embedded in one side of the inner cavity of the rotating groove 604. Fixed plates 608 are connected to both sides of the inner cavity of the communicating base 2. Two ends of one side of the fixed plate 608 are connected with telescopic rods 609. The other end of the telescopic rod 609 has a pressing block, and the pressing block is in contact with the rear side of the flap 605. A return spring 610 is sleeved outside the telescopic rod 609. Both ends of the return spring 610 are respectively connected to the fixed plate 608 and one side of the end of the telescopic rod 609.

[0027] Among them, through the designed rotating groove 604, the rotating groove 604 can facilitate the rotation of the turning rod 606 in the rotating groove 604, avoiding interference and affecting the rotation of the flap 605; Furthermore, to ensure the closing effect of the flap 605, a corresponding closing pad is provided on the outer peripheral side of the flap 605 to maintain the closing effect through the closing pad; Specifically: Through the designed closing mechanism 6, when the communicating base 2 is inserted into the adjacent assembly frame 1, the assembly frame 1 can be quickly installed and coupled through the bottom mounting part 7. The pressing part 602 located on one side of the assembly frame 1 can drive the turning rod 606 to rotate through contact with the turning rod 606. The rotation of the turning rod 606 can drive the flap 605 to open the through groove 603 through the rod. The opening of the through groove 603 can form a ventilation gap, and the retractable bearing 607 can be tensioned when the rod rotates. And the rear telescopic rod 609 and the return spring 610 can be compressed when the turning rod 606 flips. When the assembly frame 1 and the communicating base 2 are disassembled, the spring of the retractable bearing 607 and the return spring 610 can both drive the telescopic rod 609 to reset by their own elastic forces. The reset of the telescopic rod 609 can press the turning rod 606 to reset and close the flap 605. Through the series connection of multiple assembly frames 1, the dynamic negative pressure air duct can be expanded by using the closing mechanism 6, and the flap 605 can be closed after the assembly frame 1 is disconnected, preventing external dust from pouring back, and realizing the flexible layout of the welding production line through modular expansion.

[0028] Working principle: When in use and during assembly, the support sleeve 301 can be rotated to make the external thread 307 of the support sleeve 301 engage with the internal thread of the assembly frame 1, so as to drive the threaded seat 305 to move along the axis. The connecting column 304 can adjust the positioning height of the fixture body 4 through the lifting of the threaded seat 305. At the same time, when the connecting ventilation seat 501 is rotated by rotating the screwing part 508, the connecting ventilation seat 501 can connect the air inlet groove 505 with the connecting cover 509. When the external air extraction part 303 is started, the air flow can enter the cover body 302 through the clamping surface of the fixture body 4, and is successively sent into the connecting cover 509 and the air duct of the assembly frame 1 through the air extraction connecting pipe 306. And when the connecting cover 509 is separated from the air inlet groove 505 by rotation, the connecting cover 509 can be turned into the stroke groove 503 to close the air extraction air duct; When the connecting seat 2 is inserted into the adjacent assembly frame 1, the assembly frame 1 can be quickly installed and coupled through the bottom mounting part 7. The pressing part 602 on one side of the assembly frame 1 can drive the turning lever 606 to rotate through contact with the turning lever 606. The rotation of the turning lever 606 can drive the turning plate 605 to open the through groove 603 through the rod body. The opening of the through groove 603 can form a ventilation gap, and the retractable bearing 607 can be tensioned when the rod body rotates. And the rear telescopic rod 609 and the return spring 610 can be compressed when the turning lever 606 flips. When the assembly frame 1 and the connecting seat 2 are disassembled, the spring of the retractable bearing 607 and the return spring 610 can both drive the telescopic rod 609 to reset by using their own elastic forces. The reset of the telescopic rod 609 can squeeze the turning lever 606 to reset and close the turning plate 605. Through the series connection of multiple assembly frames 1, the dynamic negative pressure air duct can be expanded by using the closing mechanism 6.

[0029] In the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. Terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes an equivalent substitution or change, and should be covered by the protection scope of the present invention.

Claims

1. A follow-up clamping mechanism for laser welding of a liquid cooling plate, comprising a plurality of assembly frames (1), wherein a connecting seat (2) is provided between adjacent assembly frames (1), characterized in that: A sealing mechanism (6) is provided between the two sides of the connecting seat (2) and the assembly frame (1), and the circulation of the heat exchange medium circulation chambers of the assembly frames (1) on both sides is controlled by the sealing mechanism (6); The assembly frame (1) is provided with a plurality of holes at the top, and a plurality of support mechanisms (3) are provided in the holes. A clamp body (4) is provided at the top of the support mechanism (3). The clamping position is adjusted by expanding the support mechanism (3) at the top of the assembly frame (1). A control mechanism (5) is provided at the bottom of the support mechanism (3). The flow of gas in the support mechanism (3) is controlled by the control mechanism (5).

2. The follow-up clamping mechanism for laser welding of liquid cooling plates according to claim 1 is characterized in that: The support mechanism (3) comprises a support sleeve (301), the support sleeve (301) is provided with an external thread (307) on the outside, the external thread (307) is connected to an internal thread provided on the inside of a hole at the top of the assembly frame (1), the support sleeve (301) is provided with another internal thread on the inside, and the internal thread of the support sleeve (301) is threadedly connected to a threaded seat (305), the top of the threaded seat (305) is connected to a connecting column (304), and the top of the connecting column (304) is connected to the bottom of the clamp body (4).

3. The follow-up clamping mechanism for laser welding of liquid cooling plates according to claim 2 is characterized in that: The top of the support sleeve (301) is connected to a cover body (302), and an exhaust connecting pipe (306) is connected inside the cover body (302), and the exhaust connecting pipe (306) extends to the bottom of the support sleeve (301) and is connected to the control mechanism (5), and the exhaust connecting pipe (306) extends to the outside of the cover body (302) and is connected to an exhaust portion (303), and the exhaust portion (303) is arranged on one side outside the cover body (302).

4. The follow-up clamping mechanism for liquid cooling plate laser welding according to claim 1 is characterized in that: The control mechanism (5) comprises a supporting sleeve (301) having a connecting air seat (501) rotatably connected at the bottom thereof, a fixed air seat (502) being sleeved on the outside of the connecting air seat (501), a connecting cover (509) being connected on the inside of the fixed air seat (502), a travel groove (503) for the connecting cover (509) to slide being provided on the outside of the connecting air seat (501), an air inlet groove (505) being provided at the rear end of the inner cavity of the travel groove (503), and circulating heat dissipation is achieved through the connection between the air inlet groove (505) and the connecting cover (509).

5. The follow-up clamping mechanism for laser welding of liquid cooling plates according to claim 4 is characterized in that: The travel groove (503) corresponds to the limiting protrusions (504) on both sides of the inner cavity of the air inlet groove (505), which are moved into the end of the travel groove (503) through the connecting cover (509) for limiting. The travel groove (503) corresponds to the limiting protrusions (504) on both sides of the inner cavity of the air inlet groove (505), which are moved into the end of the travel groove (503) through the connecting cover (509) for limiting.

6. The follow-up clamping mechanism for laser welding of liquid cooling plates according to claim 4 is characterized in that: The top of the fixed air seat (502) is connected to a closed cover (506), the inner side of the closed cover (506) is connected to a limit spring (507), and the top of the limit spring (507) is in contact with the bottom of the support sleeve (301), and both sides of the fixed air seat (502) are provided with connecting air nozzles, and the connecting air nozzles are connected to the air duct opening inside the hole body of the assembly frame (1).

7. The follow-up clamping mechanism for laser welding of liquid cooling plates according to claim 1 is characterized in that: The closing mechanism (6) comprises a closing panel (601), the closing panel (601) being connected to one side of the outside of the connecting seat (2), a through slot (603) being provided on one side of the closing panel (601), a flap (605) being rotatably connected to the inner cavity of the through slot (603), both sides of the flap (605) being connected to a rod body, and the end of the rod body being connected to a flap rod (606), the flap rod (606) being rotatably connected to a rotating slot (604) provided on one side of the closing panel (601), and both sides of the assembly frame (1) being connected to positions corresponding to the flap rod (606), the extrusion parts (602) being connected to the through slot (603) at positions corresponding to the flap rod (606), and after the connecting seat (2) and the assembly frame (1) are connected, the extrusion parts (602) squeeze the flap rod (606) to open a ventilation gap in the through slot (603).

8. The follow-up clamping mechanism for laser welding of liquid cooling plates according to claim 7 is characterized in that: A rewinding bearing (607) is provided on the outside of the rod body, and the rewinding bearing (607) is embedded in one side of the inner cavity of the rotating groove (604). Both sides of the inner cavity of the connecting seat (2) are connected to fixed plates (608). Both ends of one side of the fixed plate (608) are connected to telescopic rods (609). The other end of the telescopic rod (609) has an extrusion block, and the extrusion block is in contact with the rear side of the flap (605). A return spring (610) is sleeved on the outside of the telescopic rod (609), and both ends of the return spring (610) are respectively connected to the fixed plate (608) and one side of the end of the telescopic rod (609).

9. The follow-up clamping mechanism for laser welding of liquid cooling plates according to claim 6, characterized in that: The bottom of the fixed air seat (502) is connected to a screwing portion (508), and the screwing portion (508) is rotated to drive the fixed air seat (502) to communicate with the air inlet slot (505).

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