A uniform temperature plate laser welding device

Abstract

The present application relates to the field of laser welding, in particular to a kind of uniform temperature plate laser welding equipment.It includes base, carousel assembly, placing assembly, drive assembly and welding mechanism;Carousel assembly includes carousel rotationally disposed on base and power assembly driving carousel rotation, and power assembly is disposed on base;Placing assembly is uniformly provided with four groups around carousel center axis, and placing assembly includes supporting plate for placing "L" shaped cover plate and setting on carousel, and pressing plate compared with supporting plate rotation and bending cover plate from "L" shape into "one" character to wrap copper mesh inside cover plate;Drive assembly is disposed on base, drives pressing plate rotation and resets;Welding mechanism is disposed on base, and laser welding is carried out along the three side edges of bent cover plate.The present application only needs to carry out cover plate and copper mesh twice, and the number of feeding is less, and when welding, the welding of three side edges of cover plate is carried out, the welding position is less, the welding time is shorter, and the welding mechanism is farther from worker, safer.

Description

Technical Field

[0001] This invention relates to the field of laser welding, and in particular to a heat exchanger laser welding device. Background Technology

[0002] The core function of a vapor chamber is to use the principle of phase change heat transfer to quickly and evenly transfer heat from a local high-temperature area to the entire surface of the vapor chamber, thereby improving the overall heat dissipation efficiency. It is widely used in fields such as heat dissipation modules for electronic devices and thermal management systems for new energy vehicle batteries.

[0003] Common heat spreaders consist of a copper mesh and copper plates on either side of the mesh. Currently, before welding the heat spreader, three manual loading processes are typically required: placing the lower copper plate, the copper mesh, and the upper copper plate sequentially, with the two copper plates enclosing the copper mesh on the inside. Then, welding equipment is used to weld along the outer edges of the copper plates, sealing the copper mesh inside. However, this method involves numerous loading steps, multiple welding points on the copper plates, and a long welding time. Furthermore, the close proximity of workers to the welding equipment poses certain safety risks. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a heat spreader laser welding device that only requires two feedings of the cover plate and copper mesh, reducing the number of feedings. Furthermore, welding is performed on the three edges of the cover plate, resulting in fewer welding parts, shorter welding time, and improved safety as the welding mechanism is located further away from the worker.

[0005] The technical solution of the present invention is a heat spreader laser welding device, comprising a base, a turntable assembly, a placement assembly, a drive assembly, and a welding mechanism; the turntable assembly includes a turntable rotatably mounted on the base and a power assembly for driving the turntable to rotate, the power assembly being mounted on the base; the placement assembly comprises four sets evenly arranged around the central axis of the turntable, each placement assembly including a support plate mounted on the turntable for placing an "L"-shaped cover plate, and a pressure plate that rotates relative to the support plate and bends the cover plate from an "L" shape into an "I" shape to enclose the copper mesh inside the cover plate; the drive assembly is mounted on the base and drives the pressure plate to rotate and reset; the welding mechanism is mounted on the base and performs laser welding along the three edges of the bent cover plate.

[0006] Preferably, the lower part of the pressure plate has an extended push plate portion, and the driving assembly includes a bracket mounted on the base, a hydraulic cylinder horizontally mounted on the bracket, a moving plate mounted at the front end of the hydraulic cylinder and facing the push plate portion, and two sets of reset assemblies symmetrically distributed about the pressure plate. In the initial state, the pressure plate is vertically distributed, and in the pressing and positioning state, the pressure plate is horizontally distributed.

[0007] Preferably, the movable plate is provided with push wheels.

[0008] Preferably, the reset assembly includes a fixed platform on the turntable, a rotating shaft rotatably mounted on the fixed platform, a connecting frame mounted on the rotating shaft, and a torsion spring mounted on the rotating shaft. The connecting frame is located on the back of the pressure plate, and the fixed platform and the connecting frame each have a protrusion for one end of the torsion spring to abut against.

[0009] Preferably, two sets of bending positioning components are symmetrically arranged on both sides of the tray. The bending positioning components include a second rotating shaft rotatably mounted on the turntable, a wheel frame located at the lower part of the second rotating shaft, a roller rotatably mounted at the outer end of the wheel frame and eccentrically distributed relative to the second rotating shaft, a stop frame located at the top of the second rotating shaft, a second fixed platform mounted on the turntable, a second torsion spring sleeved on the second rotating shaft, and a push column located on the side of the movable plate. The stop frame and the second fixed platform each have a slot for inserting one end of the second torsion spring. The stop frame has a positioning piece. The push column rotates the positioning piece of the stop frame to the inside of the bending position of the cover plate by pushing the roller for positioning.

[0010] Preferably, the front end of the push column has a forward-facing inclined surface one, the rear end has a backward-facing inclined surface two, and the middle part has a straight surface connecting the inclined surface one and the inclined surface two.

[0011] Preferably, it also includes a feeding mechanism, which includes a material plate on the base and on which multiple cover plates are stacked, a positioning plate vertically on the base and blocking the back of the material plate, a suction cup assembly for picking up the top cover plate, a mounting shaft for mounting the suction cup assembly, a moving stage for mounting the mounting shaft, an adjustment assembly for driving the moving stage to move horizontally, and a lifting mechanism on the base and for driving the adjustment assembly to rise and fall.

[0012] Preferably, the mounting shaft is rotatably mounted on the moving platform, and a gear is provided on the mounting shaft. The adjustment assembly includes a lifting frame provided on the moving end of the lifting mechanism, a lead screw rotatably mounted on the lifting frame, and a motor provided on the lifting frame and driving the lead screw to rotate. The lead screw is threadedly connected to the moving platform. A rack is horizontally mounted on the lifting frame to mesh with the gear. When the cover plate moves from above the material plate to above the pallet, the cover plate rotates from a "V" shaped distribution state to an "L" shaped distribution state.

[0013] Compared with existing technologies, the present invention has the following beneficial technical effects: The present invention only requires two feeding stations for the cover plate and copper mesh, resulting in two feeding operations. This reduces the number of feeding operations. Furthermore, welding is performed on the three edges of the cover plate, reducing the number of welding points and shortening the welding time. The welding mechanism and workers are located at different stations, with the welding mechanism further away from the workers, thus improving safety. A pressure plate is used to bend the "L"-shaped cover plate into a straight line to enclose the placed copper mesh inside the groove. The pressure plate also maintains a tight grip on the cover plate, facilitating precise welding along the three edges of the cover plate. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 A schematic diagram of the structure for feeding material through the suction cover; Figure 3 This is a partial structural cross-sectional view of an embodiment of the present invention; Figure 4 A partial structural diagram showing the bending of the cover plate using a pressure plate; Figure 5 This is a partial structural cross-sectional view showing how the cover plate is bent using a pressure plate. Figure 6 for Figure 5 Enlarged view of the structure at point A in the middle.

[0015] Reference numerals: 100, cover plate; 200, copper mesh; 1, base; 2, material plate; 201, positioning plate; 3, suction cup; 4, suction cup seat; 5, mounting shaft; 6, gear; 7, rack; 8, lifting frame; 9, motor; 10, lead screw; 11, moving table; 111, guide rod; 12, lifting mechanism; 13, turntable; 131, support plate; 14, fixed platform one; 15, rotating shaft one; 16, connecting frame; 17. Pressure plate; 171. Push plate section; 18. Torsion spring one; 19. Rotating shaft two; 20. Stop frame; 21. Fixed platform two; 22. Torsion spring two; 23. Bracket; 24. Hydraulic cylinder; 25. Fixed plate; 26. Slide rod; 27. Moving plate; 28. Push wheel; 29. ​​Push column; 291. Inclined surface one; 292. Inclined surface two; 30. Wheel frame; 31. Roller; 32. Laser head; 33. Three-dimensional adjustment module. Detailed Implementation

[0016] Example 1: As Figures 1-6 As shown in the figure, the heat exchange plate laser welding equipment proposed in this embodiment includes a base 1, a turntable assembly, a placement assembly, a drive assembly, and a welding mechanism.

[0017] The turntable assembly includes a turntable 13 rotatably mounted on a base 1 and a power component for driving the turntable 13 to rotate. The power component is mounted on the base 1 and adopts an existing structure capable of driving the turntable 13 to rotate. During loading, welding, and unloading, the power component pauses its operation. When it is necessary to drive the turntable 13 to rotate, the power component resumes operation.

[0018] like Figure 1 , Figure 3 and Figure 4As shown, four sets of placement components are evenly arranged around the central axis of the turntable 13. The placement components include a support plate 131 set on the turntable 13 for placing the "L"-shaped cover plate 100, and a pressure plate 17 that rotates relative to the support plate 131 and bends the cover plate 100 from the "L" shape into a "I" shape to wrap the copper mesh 200 inside the cover plate 100. The "L" shape and the "I" shape are the shapes seen from the side of the cover plate 100. The cover plate 100 and the copper mesh 200 are components of the heat spreader. The cover plate 100 can be made of copper. For the processing of the cover plate 100, the raw material of the cover plate 100 is a rectangular plate with a groove punched in the middle area and a side edge left for subsequent welding on the outside. Then, it is pre-bent into an "L" shape in the middle, with the two sides of the bending part forming a 90-degree angle. Then, the cover plate 100 is welded using this welding equipment to seal the copper mesh 200 in the inner groove. The pressure plate 17 has an outwardly extending push plate portion 171 at its lower part. The pressure plate 17 is made of lightweight materials, such as aluminum alloy or engineering plastics. When the turntable 13 rotates, it can intermittently cycle the four sets of placement components between loading station one, loading station two, welding station, and unloading station. When the cover plate 100 is placed on the support plate 131 at loading station one, it is in an "L"-shaped distribution. The bottom of the cover plate 100 contacts the support plate 131, and the limiting groove of the support plate 131 limits the outward protrusion of the cover plate 100 due to the designed groove. The back of the cover plate 100 contacts the pressure plate 17. When the placement component carrying the cover plate 100 rotates to loading station two, the worker places the copper mesh 200 into the groove of the cover plate 100, specifically a horizontally distributed groove area. If the cover plate 100 is not placed accurately at the loading station, the worker can adjust it at the second loading station to accurately place it into the limiting groove of the pallet 131, with its back attached to the pressure plate 17. The cover plate 100 is welded at the welding station using a welding mechanism, and the worker removes the finished heat exchange plate at the unloading station.

[0019] The drive assembly is mounted on the base 1 and drives the pressure plate 17 to rotate and reset. When the placement assembly, carrying the cover plate 100 and copper mesh 200, rotates to the welding station, the drive assembly drives the pressure plate 17 to rotate, and the pressure plate 17 presses the cover plate 100 from an "L" shape into an "I" shape. The drive assembly includes a bracket 23 mounted on the base 1, a hydraulic cylinder 24 horizontally mounted on the bracket 23, a movable plate 27 located at the front end of the hydraulic cylinder 24 and facing the push plate portion 171, and two sets of reset assemblies symmetrically distributed about the pressure plate 17.

[0020] The movable plate 27 can be directly used to push the push plate section 171. For example... Figure 4 and Figure 5As shown, a pusher 28 can also be provided at the front of the movable plate 27 to push the push plate 171, thus avoiding scratching and wear between the movable plate 27 and the push plate 171. For both of these situations, it is necessary to adjust the tilt angle of the push plate 171 relative to the main structure of the pressure plate 17 and select suitable pressure plates 17 and push plate 171 so that the pressure plate 17 can be rotated 90 degrees when the hydraulic cylinder 24 extends.

[0021] like Figures 3-5 As shown, a fixed plate 25 is provided at the bottom of the turntable 13, and a sliding rod 26 is slidably mounted on the fixed plate 25. The front end of the sliding rod 26 is mounted on the moving plate 27. The turntable 13 has four evenly distributed notches. In the initial state, the pressure plates 17 are vertically distributed. At this time, the pressure plates 17 are in contact with the sides of the notches, and the notches limit the pressure plates 17. The notches also leave space for the rotation of the pressure plates 17, avoiding interference with the rotation of the push plate 171. In the pressing and positioning state, the pressure plates 17 are horizontally distributed. The pressure plates 17 bend the cover plate 100 into place and also use it to press the cover plate 100, which facilitates the subsequent welding of the edge of the cover plate 100 clamped between the pressure plate 17 and the support plate 131 using a welding mechanism.

[0022] like Figures 3-6 As shown, the reset assembly includes a fixed platform 14 mounted on the turntable 13, a rotating shaft 15 rotatably mounted on the fixed platform 14, a connecting frame 16 mounted on the rotating shaft 15, and a torsion spring 18 fitted onto the rotating shaft 15. The connecting frame 16 is located on the back of the pressure plate 17, and both the fixed platform 14 and the connecting frame 16 have a protrusion for one end of the torsion spring 18 to abut. When the hydraulic cylinder 24 extends, the moving plate 27 or the push wheel 28 pushes the bearing plate 171, thereby rotating the pressure plate 17 to bend the cover plate 100. At this time, the pressure plate 17 drives the torsion spring 18 to twist and store sufficient elastic potential energy through the connecting frame 16 and the rotating shaft 15. When the hydraulic cylinder 24 retracts, the torsion spring 18 releases its elastic potential energy, and the torque is sufficient to drive the pressure plate 17 to reverse through the connecting frame 16, rotating the pressure plate 17 to its initial vertically distributed state, thus achieving automatic reset of the pressure plate 17.

[0023] like Figure 1 As shown, the welding mechanism includes a three-dimensional adjustment module 33 mounted on the base 1 and a laser head 32 mounted on the moving end of the three-dimensional adjustment module 33. The three-dimensional adjustment module 33 adopts an existing mature structure, and adjusts the three-dimensional spatial position of the laser head 32 so that the laser head 32 can perform laser welding along the three edges of the bent cover plate 100. During welding, the pressure plate 17 keeps the cover plate 100 pressed against the support plate 131. The pressure plate 17 presses against the inner area of ​​the edge of the cover plate 100, leaving a certain gap, so as not to affect the welding of the laser head 32 to the edge of the cover plate 100.

[0024] This embodiment only requires two loading stations for the cover plate 100 and copper mesh 200, resulting in two loading operations. This reduces the number of loading operations. Furthermore, welding is performed on three edges of the cover plate 100, minimizing welding points and reducing welding time. The welding mechanism and workers are located at separate stations, with the welding mechanism further away from the workers, improving safety. This embodiment utilizes the pressure plate 17 to bend the "L"-shaped cover plate 100 into a straight line to enclose the placed copper mesh 200 within the groove. The bent portion of the cover plate 100 is a closed structure, while the remaining three sides are welded by the welding mechanism. The pressure plate 17 also maintains a tight grip on the cover plate 100, facilitating precise welding along the three edges of the cover plate 100. This reduces the number of welding points compared to traditional welding methods that require welding around all four edges. The closed structure on one side is inherent to the cover plate 100 itself, ensuring good structural integrity and sealing.

[0025] Example 2: Figures 1-6 As shown, this embodiment of the heat spreader laser welding equipment, compared to Embodiment 1, features two sets of bending and positioning components symmetrically arranged on both sides of the support plate 131. Each bending and positioning component includes a second rotating shaft 19 rotatably mounted on the turntable 13, a wheel frame 30 located below the second rotating shaft 19, rollers 31 rotatably mounted on the outer end of the wheel frame 30 and eccentrically distributed relative to the second rotating shaft 19, a stop 20 located at the top of the second rotating shaft 19, a second fixed platform 21 mounted on the turntable 13, a second torsion spring 22 sleeved on the second rotating shaft 19, and a push column 29 located on the side of the moving plate 27. The stop 20 and the second fixed platform 21 each have a slot for inserting one end of the second torsion spring 22. The stop 20 has a positioning piece, the thickness of which is close to the thickness of the cover plate 100. The push column 29 rotates the positioning piece of the stop 20 to the inner side of the bending position of the cover plate 100 by pushing the rollers 31 for positioning. Based on the limiting groove of the support plate 131 to limit the cover plate 100, a stop 20 is added to use the positioning piece to abut and position the bent part of the cover plate 100, so that the cover plate 100 can be bent more accurately along the bent part.

[0026] The push column 29 has a forward-facing inclined surface 291 at its front end and a backward-facing inclined surface 292 at its rear end. A straight surface in the middle connects the inclined surfaces 291 and 292. When the hydraulic cylinder 24 extends, the moving plate 27 moves the push column 29 forward. The push column 29 pushes the roller 31 via the inclined surface 291. The wheel frame 30 drives the rotating shaft 19 and the stop frame 20 to rotate 90 degrees. The positioning plate of the stop frame 20 rotates to the bent part of the cover plate 100, and the torsion spring 22 is twisted and stores elastic potential energy. At this time, the roller 31 contacts the straight surface, and the push plate 171 is just about to be pushed. As the hydraulic cylinder 24 continues to extend, the push plate 171 is pushed, the pressure plate 17 rotates and bends the cover plate 100. When the pressure plate 17 is almost in its final position, for example, when it has rotated 80-85 degrees, the roller 31 disengages from the flat surface of the push column 29. Under the action of the second torsion spring 22, the stop 20 reverses, and the positioning piece of the stop 20 moves away from the bent part of the cover plate 100 to avoid structural interference and ensure that the pressure plate 17 can continue to bend the cover plate 100 into position. When the hydraulic cylinder 24 retracts, the pressure plate 17 reverses, the inclined surface 292 of the push column 29 pushes the roller 31 backward, the stop 20 rotates in the opposite direction, the second torsion spring 22 is twisted in the opposite direction, the roller 31 rolls back onto the flat surface of the push column 29, and finally disengages from the push column 29, and is reset again using the second torsion spring 22. The pressure plate 17 resets into position before the stop 20.

[0027] In this embodiment, during the bending process of the cover plate 100 by the pressure plate 17, the positioning piece of the baffle 20 is used to block and position the bending part of the cover plate 100, so that the cover plate 100 can be bent more accurately under the positioning action of the positioning piece.

[0028] Example 3: Figures 1-6 As shown in this embodiment, the heat exchange plate laser welding equipment, compared to Embodiments 1 and 2, further includes a feeding mechanism. The feeding mechanism includes a material plate 2 stacked on a base 1 with multiple cover plates 100, a positioning plate 201 vertically mounted on the base 1 and blocking the back of the material plate 2, a suction cup assembly for picking up the top cover plate 100, a mounting shaft 5 for mounting the suction cup assembly, a moving stage 11 for mounting the mounting shaft 5, an adjustment assembly for driving the moving stage 11 horizontally, and a lifting mechanism 12 mounted on the base 1 and driving the adjustment assembly to rise and fall. The lifting mechanism 12 includes a frame mounted on the base 1, a guide rail vertically mounted on the frame, vertically distributed lead screws, a lifting stage threadedly connected to the lead screws, and a drive motor for driving the lead screws to rotate. The lifting stage is slidably mounted on the guide rails. The lifting mechanism 12 can adjust the adjustment assembly to any height. The suction cup assembly includes a suction cup seat 4 mounted on the mounting shaft 5 and multiple suction cups 3 mounted at the bottom of the suction cup seat 4. The bottom surface of the suction cup seat 4 is V-shaped with an included angle of 90 degrees. The suction cups 3 are externally connected to an existing mature pneumatic control system for control. The multiple suction cups 3 can pick up and lower the cover plate 100.

[0029] The mounting shaft 5 is rotatably mounted on the movable platform 11. A gear 6 is mounted on the mounting shaft 5. The adjustment assembly includes a lifting frame 8 mounted on the moving end of the lifting mechanism 12, a lead screw 10 horizontally mounted on the lifting frame 8, a guide rod 111 horizontally mounted on the lifting frame 8, and a motor 9 mounted on the lifting frame 8 and driving the lead screw 10 to rotate. The lifting frame 8 is mounted on the lifting platform of the lifting mechanism 12. The lead screw 10 is threadedly connected to the movable platform 11, and the movable platform 11 is slidably mounted on the guide rod 111. A rack 7 horizontally mounted on the lifting frame 8 meshes with the gear 6. The gear 6 is an incomplete gear with a hollow center to reduce weight. The lifting mechanism 12 drives the adjustment assembly to descend, moving the suction cup 3 downwards to pick up the topmost cover plate 100. Then, the lifting mechanism 12 drives the adjustment assembly to rise to a predetermined height, driving the lead screw 10 to rotate via the motor 9. The lead screw 10 moves the movable platform 11, which in turn moves the mounting shaft 5. Gear 6 rolls on rack 7, causing mounting shaft 5 to rotate on moving table 11, which in turn drives suction cup base 4, suction cup 3, and cover plate 100 to rotate 45 degrees. Then, lifting mechanism 12 moves the adjusting assembly down, cover plate 100 moves down, suction cup 3 lowers cover plate 100, and cover plate 100 is placed on support plate 131. When cover plate 100 moves from above material plate 2 to above support plate 131, cover plate 100 rotates from a "V" shaped distribution state (V-shaped angle is 90 degrees) to an "L" shaped distribution state. When moving table 11 moves in the reverse direction to reset, suction cup base 4 also resets accordingly.

[0030] When the cover plate 100 is loaded again, the lifting mechanism 12 drives the adjustment component to move down so that the suction cup 3 can pick up the top cover plate 100. The downward movement distance is longer than the previous downward movement distance by the height difference generated by the cover plate 100.

[0031] This embodiment can stack multiple cover plates 100 on the material plate 2 at one time. The feeding mechanism automatically feeds one cover plate 100 at a time, saving labor and ensuring the uniformity and accuracy of the feeding position.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A laser welding device for a heat spreader plate, characterized in that, include: Base (1); The turntable assembly includes a turntable (13) rotatably mounted on a base (1) and a power assembly for driving the turntable (13) to rotate; The components are evenly arranged in four groups around the central axis of the turntable (13), including a support plate (131) set on the turntable (13) for placing the "L"-shaped cover plate (100), and a pressure plate (17) that rotates relative to the support plate (131) and bends the cover plate (100) from the "L" shape into a "I" shape to wrap the copper mesh (200) inside the cover plate (100). Drive assembly, drive pressure plate (17) to rotate and reset; The welding mechanism performs laser welding along the three edges of the bent cover plate (100); The pressure plate (17) has an extended push plate portion (171) at the lower part. The drive assembly includes a bracket (23) set on the base (1), a hydraulic cylinder (24) set horizontally on the bracket (23), a moving plate (27) set at the front end of the hydraulic cylinder (24) and facing the push plate portion (171), and two sets of reset components symmetrically distributed about the pressure plate (17). In the initial state, the pressure plate (17) is vertically distributed. In the pressing and positioning state, the pressure plate (17) is horizontally distributed. Two sets of bending positioning components are symmetrically arranged on both sides of the tray (131). The bending positioning components include a second rotating shaft (19) rotatably arranged on the turntable (13), a wheel frame (30) arranged at the lower part of the second rotating shaft (19), a roller (31) rotatably arranged at the outer end of the wheel frame (30) and eccentrically distributed relative to the second rotating shaft (19), a stop (20) arranged at the top of the second rotating shaft (19), a second fixed platform (21) arranged on the turntable (13), a second torsion spring (22) sleeved on the second rotating shaft (19), and a push column (29) arranged on the side of the moving plate (27). The stop (20) and the second fixed platform (21) each have a slot for inserting one end of the second torsion spring (22). The stop (20) has a positioning piece. The push column (29) rotates the positioning piece of the stop (20) to the inside of the bending position of the cover plate (100) by pushing the roller (31) for positioning.

2. The heat exchanger laser welding equipment according to claim 1, characterized in that, The movable plate (27) is equipped with push wheels (28).

3. The heat exchanger laser welding equipment according to claim 1, characterized in that, The reset assembly includes a fixed platform (14) mounted on a turntable (13), a rotating shaft (15) mounted on the fixed platform (14), a connecting frame (16) mounted on the rotating shaft (15), and a torsion spring (18) mounted on the rotating shaft (15). The connecting frame (16) is mounted on the back of the pressure plate (17). The fixed platform (14) and the connecting frame (16) each have a boss portion for one end of the torsion spring (18) to abut.

4. The heat exchanger laser welding equipment according to claim 1, characterized in that, The pusher (29) has a forward-facing inclined surface 1 (291) at the front end, a backward-facing inclined surface 2 (292) at the rear end, and a straight surface in the middle that connects the inclined surface 1 (291) and the inclined surface 2 (292).

5. The heat exchanger laser welding equipment according to claim 1, characterized in that, It also includes a feeding mechanism, which includes a material plate (2) on the base (1) and stacked with multiple cover plates (100), a positioning plate (201) vertically set on the base (1) and blocking the back of the material plate (2), a suction cup assembly for picking up the top cover plate (100), a mounting shaft (5) for mounting the suction cup assembly, a moving stage (11) for mounting the mounting shaft (5), an adjustment component for driving the moving stage (11) to move horizontally, and a lifting mechanism (12) set on the base (1) and driving the adjustment component to lift up and down.

6. The heat exchanger laser welding equipment according to claim 5, characterized in that, The mounting shaft (5) is rotatably mounted on the moving table (11). A gear (6) is mounted on the mounting shaft (5). The adjusting assembly includes a lifting frame (8). A rack (7) that meshes with the gear (6) is horizontally mounted on the lifting frame (8). When the cover plate (100) moves from above the material plate (2) to above the pallet (131), the cover plate (100) rotates from a "V" shaped distribution state to an "L" shaped distribution state.

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