Energy storage power supply assembly laser welding equipment

Abstract

The present invention discloses a laser welding device for assembling an energy storage power supply, which relates to the field of power supply assembly and includes a welding mechanism, wherein the welding mechanism includes a mounting plate, the lower end of the mounting plate is rotatably connected to a rotating shaft, the lower end of the rotating shaft is fixedly connected to a connecting column, a second electric slide is installed on the left side of the connecting column, and a laser welding head is installed on the slide rail seat of the second electric slide; a moving mechanism, wherein the moving mechanism is used to move the mounting plate up and down, the moving mechanism includes a first electric slide, a connecting frame is installed on the front side of the first electric slide, and the front side of the connecting frame is fixedly connected to the rear side of the mounting plate; and a rotating mechanism. During use, the welding device can reduce the possibility of cold welding, and after each welding is completed, a welding tightness test can be performed to minimize quality problems caused by cold welding. In addition, the fume generated during the welding process can be removed.

Description

Technical Field

[0001] The present invention relates to the field of power supply assembly, and in particular to energy storage power supply assembly laser welding equipment. Background Art

[0002] Laser welding uses a high-energy-density laser beam as a heat source. Through an optical system, the laser beam is focused into a very small area, causing the objects to melt in a very short time and forming strong welds and seams. Laser welding has the advantages of fast welding speed, beautiful welds, and a small heat-affected zone. It is particularly suitable for welding precision parts. In the production of power battery modules, laser welding is widely used for welding between battery cells.

[0003] In the prior art, an electrode connecting piece is generally placed on the electrodes of the two battery cells to be connected. This connecting piece is generally convex, and then a pressurizing structure is used to make the connecting piece more stable during welding. However, in the prior art, a single pressurizing structure is generally used. When pressurizing one side of the electrode connecting piece, since the electrode connecting piece is a hard metal piece with a certain elasticity, it is very easy for one side to be slightly deformed by pressurization and the other side to be slightly warped. After welding one side, when transferring to the other side, since the other side of the electrode connecting piece is in a slightly warped state, its contact with the electrode is not comprehensive, which leads to the problem of cold welding. Therefore, how to solve this problem needs to be considered. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a laser welding device for assembling an energy storage power supply. During use, the welding device can reduce the possibility of cold welding, and after each welding is completed, a welding tightness test can be performed to minimize the quality problems caused by cold welding. In addition, the fume generated during the welding process can also be removed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A laser welding device for assembling an energy storage power supply includes a welding mechanism, the welding mechanism includes a mounting plate, the lower end of the mounting plate is rotatably connected to a rotating shaft, the lower end of the rotating shaft is fixedly connected to a connecting column, a second electric slide is installed on the left side of the connecting column, and a laser welding head is installed on the slide rail seat of the second electric slide; a moving mechanism, the moving mechanism is used to move the mounting plate up and down, the moving mechanism includes a first electric slide, a connecting frame is installed on the front side of the first electric slide, and the front side of the connecting frame is fixedly connected to the rear side of the mounting plate; a rotating mechanism, the rotating mechanism is used to rotate the laser welding head, The rotating mechanism includes a driving motor installed on the upper end of the mounting plate, the driving motor is a servo motor that can change the rotation direction, the output shaft of the driving motor passes through the mounting plate, the output shaft of the driving motor is installed with a first gear, the rotating shaft is installed with a second gear, the first gear is engaged with the second gear; a pressurized positioning mechanism, the pressurized positioning mechanism is used to pressurize and limit the electrode connecting piece and assist the laser welding head in welding operations; a gas purification mechanism, the gas purification mechanism is used to adsorb welding exhaust gas; a detection mechanism, the detection mechanism is used to detect the electrode connecting piece after welding.

[0007] Preferably, the pressurized positioning mechanism includes a second L-shaped plate fixedly connected to the lower end of the mounting plate, and a folding pressure plate is fixedly connected to the front side of the horizontal part of the second L-shaped plate. Mounting grooves are provided on both sides of the folding pressure plate, and two electric telescopic rods are installed in each of the mounting grooves, and the telescopic ends of each two electric telescopic rods are fixedly connected to a positioning pressure plate.

[0008] Preferably, the lower end of the mounting plate is fixedly connected to a first L-shaped plate, a gearbox is installed on the upper end of the horizontal part of the first L-shaped plate, the output shaft of the drive motor is fixedly connected to the input shaft of the gearbox, the output shaft of the gearbox passes through the horizontal part of the first L-shaped plate and is fixedly connected to a rotating disk, the lower end of the mounting plate is fixedly connected to a first vertical plate, and the left side of the first vertical plate is fixedly connected to a first piston cylinder.

[0009] Preferably, a connecting rod is rotatably connected to the eccentric lower end of the rotating disk, a first piston plate that can slide left and right is provided in the first piston cylinder, and the other end of the connecting rod is rotatably connected to the left side of the first piston plate.

[0010] Preferably, the gas purification mechanism includes a cache cylinder fixedly connected to the upper end of the mounting plate, the inner top space of the cache cylinder is connected to a through opening, the right side space of the first piston cylinder is connected to a first one-way tube, and the other end of the first one-way tube is connected to the inner bottom space of the cache cylinder.

[0011] Preferably, a second piston plate that can slide up and down is provided in the cache cylinder, and the upper end of the second piston plate is elastically connected to the inner top of the cache cylinder through a first spring, and an annular limit strip is fixedly connected to the inner wall of the cache cylinder. A through opening is opened at the upper end of the cache cylinder, and a U-shaped connecting plate is fixedly connected to the left side of the laser welding head. A filter box is installed on the left side of the vertical part of the U-shaped connecting plate, and the inner top space of the filter box is connected to the inner bottom space of the cache cylinder through an air intake pipe. The inner diameter of the air intake pipe is one-fifth of the inner diameter of the first one-way pipe. An inclined suction head is installed through the horizontal part of the U-shaped connecting plate, and the inclined suction head is connected to the inner bottom space of the filter box through a connecting pipe.

[0012] Preferably, the detection mechanism includes a second vertical plate fixedly connected to the lower end of the second L-shaped plate, a second piston cylinder is installed on the front side of the second vertical plate, a third piston plate that can slide back and forth is provided in the second piston cylinder, the front side of the third piston plate is fixedly connected to an elastic detection column, the rear side of the third piston plate is elastically connected to the rear inner wall of the second piston cylinder through a second spring, the rear space of the second piston cylinder is connected to the outside world through the exhaust hole, the rear space of the second piston cylinder is connected to the right space of the first piston cylinder through a second one-way tube, and the inner diameter of the second one-way tube is three times the inner diameter of the exhaust hole.

[0013] Preferably, a pressure relief port is provided on the right inner wall of the front space of the second piston cylinder, and a one-way valve is installed inside the first one-way tube and the second one-way tube. The one-way valve inside the first one-way tube flows from the bottom space in the cache cylinder to the right space of the first piston cylinder in one direction, and the one-way valve inside the second one-way tube flows from the rear space of the second piston cylinder to the right space of the first piston cylinder in one direction.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Two positioning pressure plates are provided. The subsequent operation of the rotating mechanism can simultaneously pressurize the contact points between the electrode connecting piece and the two electrodes during welding. In this way, synchronous limiting on both sides can be achieved, reducing the possibility of subsequent cold welding.

[0016] 2. When in use, a one-way gas flow of the "inclined suction head, connecting pipe, filter box and intake pipe" will be continuously generated, which can absorb and treat the fume generated by welding to avoid affecting the surrounding environment.

[0017] 3. A detection mechanism is provided. After completing a single rotation, the elastic detection column will move forward. After the subsequent welding is completed, the overall upward movement will drive the elastic detection column to move upward for detection operation, thereby ensuring the tightness of the overall connection without the need for subsequent secondary detection.

[0018] 4. Since the elastic detection column is constantly moving backward, each time the welding of an electrode connecting piece is completed, the elastic detection column will move to the inside of the second piston cylinder and will not affect the next downward movement operation of the equipment.

[0019] In summary, the equipment improves the stability and quality of the welding process, strengthens environmental protection treatment and automated detection capabilities, optimizes the equipment operation process, and improves production efficiency and product quality overall. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a laser welding device for assembling an energy storage power supply proposed by the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the upward perspective;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure without the first electric slide rail, connecting frame and mounting plate;

[0023] Figure 4 for Figure 3 Schematic diagram of the cross-section structure;

[0024] Figure 5 is a cross-sectional schematic diagram of a cache cartridge;

[0025] Figure 6 is a cross-sectional schematic diagram of the second piston cylinder;

[0026] Figure 7 It is a cross-sectional schematic diagram of the folded pressure plate;

[0027] Figure 8 for Figure 1 A cross-sectional view of a battery and an electrode connecting piece.

[0028] In the figure: 1 the first electric slide rail, 2 the connecting frame, 3 the mounting plate, 4 the driving motor, 5 the first L-shaped plate, 6 the first vertical plate, 7 the buffer cylinder, 8 the rotating shaft, 9 the connecting column, 10 the laser welding head, 11 the U-shaped connecting plate, 12 the second L-shaped plate, 13 the folding pressure plate, 14 the filter box, 15 the connecting pipe, 16 the inclined suction head, 17 the air intake pipe, 18 the second electric slide rail, 19 the second gear, 20 the first gear, 21 the rotating disk, 22 the first piston cylinder, 23 the connecting rod, 24 the second vertical plate, 25 the second piston cylinder, 26 the second one-way pipe, 27 the first one-way pipe, 28 the positioning pressure plate, 29 the electric telescopic rod, 30 the gearbox, 31 the first piston plate, 32 the second piston plate, 33 the annular limit strip, 34 the first spring, 35 the through port, 36 the exhaust hole, 37 the third piston plate, 38 the second spring, 39 the elastic detection column, 40 the mounting groove, 41 the pressure relief port. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] Reference Figures 1-8 A laser welding device for assembling an energy storage power supply includes a welding mechanism. The welding mechanism includes a mounting plate 3. The lower end of the mounting plate 3 is rotatably connected to a rotating shaft 8. The lower end of the rotating shaft 8 is fixedly connected to a connecting column 9. A second electric slide rail 18 is installed on the left side of the connecting column 9. A laser welding head 10 is installed on the slide rail seat of the second electric slide rail 18. When in use, the laser welding head 10 can generate a laser beam for welding.

[0031] As an embodiment of the present invention, it also includes a moving mechanism, which is used to move the mounting plate 3 up and down. The moving mechanism includes a first electric slide rail 1, and a connecting frame 2 is installed on the front side of the first electric slide rail 1. The front side of the connecting frame 2 is fixedly connected to the rear side of the mounting plate 3. Furthermore, the first electric slide rail 1 is connected to a horizontal moving component in the prior art, so that multi-directional welding operations can be achieved;

[0032] As an embodiment of the present invention, a rotation mechanism is further included, which is used to rotate the laser welding head 10. The rotation mechanism includes a drive motor 4 mounted on the upper end of the mounting plate 3. The drive motor 4 is a servo motor that can change the rotation direction. The output shaft of the drive motor 4 passes through the mounting plate 3. The output shaft of the drive motor 4 is mounted with a first gear 20. A second gear 19 is mounted on the rotating shaft 8. The first gear 20 is meshed with the second gear 19.

[0033] As an embodiment of the present invention, it also includes a pressure positioning mechanism, which is used to pressurize and limit the electrode connecting piece and assist the laser welding head 10 in performing the welding operation. The pressure positioning mechanism includes a second L-shaped plate 12 fixedly connected to the lower end of the mounting plate 3, and a folding pressure plate 13 is fixedly connected to the front side of the horizontal portion of the second L-shaped plate 12. Both sides of the folding pressure plate 13 are provided with mounting grooves 40, and two electric telescopic rods 29 are installed in each mounting groove 40. The telescopic ends of each of the two electric telescopic rods 29 are fixedly connected to a positioning pressure plate 28. The length of the positioning pressure plate 28 is adjustable to adapt to different electrode connecting pieces. Furthermore, the positioning pressure plate 28 can adopt a replaceable connection method to make the overall adaptability stronger and facilitate subsequent maintenance.

[0034] As an embodiment of the present invention, the lower end of the mounting plate 3 is fixedly connected to the first L-shaped plate 5, and the upper end of the horizontal part of the first L-shaped plate 5 is installed with a gearbox 30, which is an accelerator. The output shaft of the drive motor 4 is fixedly connected to the input shaft of the gearbox 30, and the output shaft of the gearbox 30 passes through the horizontal part of the first L-shaped plate 5 and is fixedly connected to the rotating disk 21. The lower end of the mounting plate 3 is fixedly connected to the first vertical plate 6, and the left side of the first vertical plate 6 is fixedly connected to the first piston cylinder 22. The lower end of the rotating disk 21 is rotatably connected to the connecting rod 23 at the eccentric position. A first piston plate 31 that can slide left and right is provided in the first piston cylinder 22, and the other end of the connecting rod 23 is rotatably connected to the left side of the first piston plate 31;

[0035] As an embodiment of the present invention, it also includes a gas purification mechanism, which is used to adsorb welding exhaust gas. The gas purification mechanism includes a cache cylinder 7 fixedly connected to the upper end of the mounting plate 3, and the inner top space of the cache cylinder 7 is connected with a through port 35. The right side space of the first piston cylinder 22 is connected with a first one-way tube 27, and the other end of the first one-way tube 27 is connected with the inner bottom space of the cache cylinder 7. A second piston plate 32 that can slide up and down is provided in the cache cylinder 7, and the upper end of the second piston plate 32 is elastically connected to the inner top of the cache cylinder 7 through a first spring 34. An annular limit strip 33 is fixedly connected to the inner wall of the cache cylinder 7, and the upper end of the cache cylinder 7 A through opening 35 is provided. A U-shaped connecting plate 11 is fixedly connected to the left side of the laser welding head 10. A filter box 14 is installed on the left side of the vertical portion of the U-shaped connecting plate 11. A filter assembly, such as a filter element and activated carbon, is provided in the filter box 14 to absorb harmful gases in the generated flue gas. The inner top space of the filter box 14 is connected to the inner bottom space of the buffer cylinder 7 through an air intake pipe 17. A manual valve is also provided in the air intake pipe 17. The inner diameter of the air intake pipe 17 is one-fifth of the inner diameter of the first one-way pipe 27. An inclined suction head 16 is installed through the horizontal portion of the U-shaped connecting plate 11. The inclined suction head 16 is connected to the inner bottom space of the filter box 14 through a connecting pipe 15.

[0036] As an embodiment of the present invention, it also includes a detection mechanism, which is used to detect the electrode connecting piece after welding. The detection mechanism includes a second vertical plate 24 fixedly connected to the lower end of the second L-shaped plate 12, a second piston cylinder 25 is installed on the front side of the second vertical plate 24, and a third piston plate 37 that can slide back and forth is provided in the second piston cylinder 25. The front side of the third piston plate 37 is fixedly connected to an elastic detection column 39, and the rear side of the third piston plate 37 is elastically connected to the rear inner wall of the second piston cylinder 25 through a second spring 38. The rear space of the second piston cylinder 25 is connected to the outside through the exhaust hole 36, and the rear space of the second piston cylinder 25 is connected to the right side space of the first piston cylinder 22 through the second one-way tube 26. The inner diameter of the second one-way tube 26 is three times the inner diameter of the exhaust hole 36;

[0037] As an embodiment of the present invention, a pressure relief port 41 is opened on the right inner wall of the front space of the second piston cylinder 25, and a one-way valve is installed inside the first one-way tube 27 and the second one-way tube 26. The one-way valve inside the first one-way tube 27 flows in a one-way direction from the bottom space in the buffer cylinder 7 to the right space of the first piston cylinder 22, and the one-way valve inside the second one-way tube 26 flows in a one-way direction from the rear space of the second piston cylinder 25 to the right space of the first piston cylinder 22.

[0038] In the present invention, when performing the welding operation, the electrode connecting piece is first placed on the upper ends of the electrodes to be connected of the two batteries, and then the device is moved by an external horizontal moving component. After it moves to a position directly above the electrode connecting piece, the first electric slide rail 1 is activated to move the connecting frame 2 downward. The downward movement of the connecting frame 2 will drive the mounting plate 3 downward. The downward movement of the mounting plate 3 will drive the folding pressure plate 13 downward through the second L-shaped plate 12. The downward movement of the folding pressure plate 13 will drive the two positioning pressure plates 28 downward, and pressurize and limit the two sides of the electrode connecting piece (directly above the contact point with the electrode). By using this method, synchronous limiting of both sides can be achieved, reducing the possibility of subsequent cold welding.

[0039] Then, the welding operation is performed. After the single-side welding operation, the drive motor 4 is started and rotated half a circle. The first gear 20 and the second gear 19 are used to drive the shaft 8 to rotate in the opposite direction. The rotation of the shaft 8 drives the laser welding head 10 to rotate 180 degrees (counterclockwise rotation from a top view) and is located directly above the other unwelded electrode. The welding operation is performed again, thus achieving two welding operations. Compared with the existing single-limit welding, the welding of this solution is more stable.

[0040] After the drive motor 4 is started, it will also drive the gearbox 30 to rotate the rotating disk 21 for multiple circles. The rotation of the rotating disk 21 will make the first piston plate 31 reciprocate left and right for multiple times through the connecting rod 23. The first piston plate 31 moves to the left, and gas will be drawn in through the first one-way tube 27. The first piston plate 31 moves to the right, and gas will be pressed out through the second one-way tube 26. When the first one-way tube 27 draws in gas, the gas at the bottom of the buffer cylinder 7 will be quickly drawn away. However, due to the small diameter of the air inlet pipe 17, the gas replenishment speed is slow, so a large amount of gas cannot be replenished in time, thereby The second piston plate 32 is moved downward and the first spring 34 is stretched. In this way, after the subsequent drive motor 4 stops moving, the second piston plate 32 will slowly move upward under the elastic action of the first spring 34 and continuously replenish gas through the intake pipe 17. This process can last for a long time and can continue to operate during subsequent welding. Since the intake pipe 17 replenishes gas, a one-way gas flow is generated through the inclined suction head 16, the connecting pipe 15, the filter box 14 and the intake pipe 17, which can absorb and process the fume generated by welding to avoid affecting the surrounding environment.

[0041] It is also worth noting that, in this process, since the second piston plate 32 moves downward for a large distance and moves upward at a slow speed, the actual exhaust time is relatively long. This allows the second piston plate 32 to remain in the exhaust state for a long time while continuously performing welding operations. After the last welding operation is completed, the manual valve in the air inlet pipe 17 can be closed. When the second piston plate 32 is in the first welding operation, the manual valve can be opened to enter the exhaust state. This allows the fume generated during the entire welding process to be absorbed and processed, thereby ensuring comprehensive fume treatment.

[0042] Furthermore, after completing a single welding and starting the drive motor 4 to rotate 180 degrees, the second one-way tube 26 will discharge a large amount of gas into the rear space of the second piston cylinder 25, and the exhaust speed of the exhaust hole 36 is slow, so a large amount of gas entering will cause the third piston plate 37 to move forward and push the elastic detection column 39 forward until the third piston plate 37 is located in front of the pressure relief port 41. When the drive motor 4 stops moving, under the elastic action of the second spring 38, the third piston plate 37 will slowly move backward at a slow speed to ensure that after the welding is completed, the first electric slide rail 1 is started to move the mounting plate 3 up. When the first electric slide rail 1 moves the mounting plate 3 upward, the elastic detection column 39 is still located directly below the welded electrode connecting piece. In this way, when the first electric slide rail 1 allows the mounting plate 3 to move upward, the elastic detection column 39 will move upward to contact the welded electrode connecting piece and push the welded electrode connecting piece. If the welding is relatively tight, the welded electrode connecting piece will not be affected, and the elastic detection column 39 will be pushed and bent, and eventually separated from the welded electrode connecting piece. If the welding is not tight enough and there is a cold weld, the welded electrode connecting piece will be pushed and separated from the electrode by the elastic detection column 39. In this way, the detection operation can be realized.

[0043] Since the elastic detection column 39 is constantly moving backward, each time the welding of an electrode connecting piece is completed, the elastic detection column 39 will move to the inside of the second piston cylinder 25, which will not affect the next downward movement of the device;

[0044] After completing the welding of one electrode connecting piece, start the first electric slide rail 1 to move the mounting plate 3 upward, and then weld other electrode connecting pieces through the external horizontal moving assembly;

[0045] In addition, each time the driving motor 4 is started, it rotates in the reverse direction the next time it is started. The air intake pipe 17 is made of a soft pipe body, and this method can avoid the occurrence of pipe entanglement.

[0046] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A laser welding device for assembling energy storage power supply, characterized in that: include: A welding mechanism, comprising a mounting plate (3), the lower end of the mounting plate (3) being rotatably connected to a rotating shaft (8), the lower end of the rotating shaft (8) being fixedly connected to a connecting column (9), a second electric slide rail (18) being mounted on the left side of the connecting column (9), and a laser welding head (10) being mounted on a slide rail seat of the second electric slide rail (18); A moving mechanism, the moving mechanism is used to move the mounting plate (3) up and down, the moving mechanism comprising a first electric slide rail (1), a connecting frame (2) being installed on the front side of the first electric slide rail (1), and the front side of the connecting frame (2) being fixedly connected to the rear side of the mounting plate (3); A rotating mechanism, the rotating mechanism is used to rotate the laser welding head (10), the rotating mechanism includes a driving motor (4) mounted on the upper end of the mounting plate (3), the driving motor (4) is a servo motor capable of changing the direction of rotation, the output shaft of the driving motor (4) passes through the mounting plate (3), the output shaft of the driving motor (4) is mounted with a first gear (20), the rotating shaft (8) is mounted with a second gear (19), and the first gear (20) is meshed with the second gear (19); A pressurizing and positioning mechanism, the pressurizing and positioning mechanism is used to pressurize and limit the electrode connecting piece and assist the laser welding head (10) in performing welding operations; The lower end of the mounting plate (3) is fixedly connected to a first L-shaped plate (5), a gearbox (30) is installed on the upper end of the horizontal part of the first L-shaped plate (5), the output shaft of the drive motor (4) is fixedly connected to the input shaft of the gearbox (30), the output shaft of the gearbox (30) passes through the horizontal part of the first L-shaped plate (5) and is fixedly connected to a rotating disk (21), the lower end of the mounting plate (3) is fixedly connected to a first vertical plate (6), the left side of the first vertical plate (6) is fixedly connected to a first piston cylinder (22), the lower end of the rotating disk (21) is rotatably connected to a connecting rod (23), a first piston plate (31) that can slide left and right is provided in the first piston cylinder (22), and the other end of the connecting rod (23) is rotatably connected to the left side of the first piston plate (31); A gas purification mechanism, the gas purification mechanism is used to adsorb welding waste gas, the gas purification mechanism includes a cache cylinder (7) fixedly connected to the upper end of the mounting plate (3), the inner top space of the cache cylinder (7) is connected to a through port (35), the right side space of the first piston cylinder (22) is connected to a first one-way tube (27), and the other end of the first one-way tube (27) is connected to the inner bottom space of the cache cylinder (7); A detection mechanism is used to detect the electrode connecting piece after welding.

2. The energy storage power supply assembly laser welding equipment according to claim 1, characterized in that: The pressurized positioning mechanism comprises a second L-shaped plate (12) fixedly connected to the lower end of the mounting plate (3); a folding pressure plate (13) is fixedly connected to the front side of the horizontal portion of the second L-shaped plate (12); mounting grooves (40) are provided on both sides of the folding pressure plate (13); two electric telescopic rods (29) are installed in each of the mounting grooves (40); and the telescopic ends of each of the two electric telescopic rods (29) are fixedly connected to a positioning pressure plate (28).

3. The energy storage power supply assembly laser welding equipment according to claim 1, characterized in that: A second piston plate (32) that can slide up and down is provided in the cache cylinder (7), and the upper end of the second piston plate (32) is elastically connected to the inner top of the cache cylinder (7) through a first spring (34). An annular limit strip (33) is fixedly connected to the inner wall of the cache cylinder (7). A U-shaped connecting plate (11) is fixedly connected to the left side of the laser welding head (10), and a filter box (14) is installed on the left side of the vertical part of the U-shaped connecting plate (11). The inner top space of the filter box (14) is connected to the inner bottom space of the cache cylinder (7) through an air intake pipe (17). The inner diameter of the air intake pipe (17) is one-fifth of the inner diameter of the first one-way pipe (27). An inclined air suction head (16) is installed through the horizontal part of the U-shaped connecting plate (11), and the inclined air suction head (16) is connected to the inner bottom space of the filter box (14) through a connecting pipe (15).

4. The energy storage power supply assembly laser welding equipment according to claim 3, characterized in that: The detection mechanism comprises a second vertical plate (24) fixedly connected to the lower end of the second L-shaped plate (12), a second piston cylinder (25) is installed on the front side of the second vertical plate (24), a third piston plate (37) that can slide back and forth is provided in the second piston cylinder (25), the front side of the third piston plate (37) is fixedly connected to an elastic detection column (39), the rear side of the third piston plate (37) is elastically connected to the rear inner wall of the second piston cylinder (25) through a second spring (38), the rear space of the second piston cylinder (25) is connected to the outside through the exhaust hole (36), the rear space of the second piston cylinder (25) is connected to the right side space of the first piston cylinder (22) through a second one-way tube (26), and the inner diameter of the second one-way tube (26) is three times the inner diameter of the exhaust hole (36).

5. The energy storage power supply assembly laser welding equipment according to claim 4, characterized in that: A pressure relief port (41) is provided on the inner wall on the right side of the front space of the second piston cylinder (25). One-way valves are installed inside the first one-way tube (27) and the second one-way tube (26). The one-way valve inside the first one-way tube (27) flows in a one-way direction from the bottom space inside the buffer cylinder (7) to the right side space of the first piston cylinder (22). The one-way valve inside the second one-way tube (26) flows in a one-way direction from the rear side space of the second piston cylinder (25) to the right side space of the first piston cylinder (22).

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