Repair welding equipment based on battery welding defect repair

Abstract

The utility model discloses a based on battery welding defect repair's repair welding equipment, including frame, clamp, welding set and linear motion device, and welding set is located above the clamp, including angle adjusting module and laser welding head, and laser welding head is used for to the battery welding defect repair welding on the clamp, and angle adjusting module is used for adjusting the rotation angle of welding head along X direction or Y direction, linear motion device sets up between frame and clamp and / or welding set, is used in drive clamp and welding set and does the relative movement of X direction, Y direction and Z direction, to make the welding defect of battery on the clamp and the welding position of laser welding head alignment. The utility model discloses a based on battery welding defect repair's repair welding equipment, can repair the welding defect of battery from multiple welding angles, to adapt from different angle repair welding defect on the battery or repair the welding defect of battery side, reduce the scrapping of welding defective product.

Description

Technical Field

[0001] This utility model relates to the technical field of battery production equipment, and in particular to a repair welding device for repairing battery welding defects. Background Technology

[0002] Currently, laser welding is generally used for welding the lithium battery cells of new energy vehicles. Laser welding uses high-energy laser pulses to locally heat the material in a small area. The energy of the laser radiation diffuses into the interior of the material through heat conduction, melting the material to form a specific molten pool.

[0003] Laser welding of the periphery of the lithium battery cells for new energy vehicles and the sealing nails can easily produce defects such as burst points and pinholes. In order to reduce the scrap of defective products, the defects after battery welding are usually repaired by welding.

[0004] However, current welding equipment has a single welding angle, making it difficult to repair welding defects on the battery from different angles or to repair welding defects on the side of the battery. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a repair welding device for battery welding defects, which can repair welding defects in batteries from multiple welding angles, so as to adapt to repairing welding defects on the battery from different angles or repairing welding defects on the side of the battery, thereby reducing the scrap of defective products.

[0006] The repair welding device based on battery welding defect repair according to an embodiment of the present invention includes: The frame has horizontally arranged and mutually perpendicular X and Y directions, and a Z direction perpendicular to the X and Y directions; Clamps are used to secure the battery. The welding device, located above the fixture, includes an angle adjustment module and a laser welding head. The laser welding head is used to repair welding defects in the battery on the fixture, and the angle adjustment module is used to adjust the rotation angle of the welding head along the X or Y direction. A linear motion device is disposed between the frame and the fixture and / or the welding device, for driving the fixture and the welding device to perform relative movements in the X, Y and Z directions, so that the welding defects of the battery on the fixture are aligned with the welding position of the laser welding head.

[0007] The repair welding device for battery welding defects according to the embodiments of this utility model has at least the following beneficial effects: 1. This utility model incorporates an angle adjustment module to adjust the rotation angle of the welding head along the X or Y direction. This allows the laser welding head to adjust its rotation angle in the X or Y direction, thus enabling the laser beam incident angle to be adjustable. This allows the laser welding head to repair welding defects in the battery from multiple angles, adapting to repairing welding defects on the battery or on its sides from different angles. This avoids repair blind spots caused by a fixed angle of the laser welding head, reducing the scrap of defective welded products.

[0008] 2. By setting up a linear motion device, this utility model enables the fixture and welding device to move relative to each other in the X, Y and Z directions, so that the welding defects of the battery are precisely aligned with the welding position of the laser welding head, thereby accurately repairing the welding defects on the battery.

[0009] According to some embodiments of the present invention, the angle adjustment module includes a mounting plate, an arc-shaped groove, and a fixing bolt. The laser welding head is rotatably mounted on the mounting plate. The arc-shaped groove extends circumferentially along the rotation axis of the laser welding head. The arc-shaped groove is disposed in one of the mounting plate and the laser welding head. The fixing bolt is disposed in the other of the mounting plate and the laser welding head. The fixing bolt passes through the arc-shaped groove. The fixing bolt and the arc-shaped groove cooperate to fix the rotation angle of the laser welding head.

[0010] The advantages of this invention are as follows: By setting up a mounting plate, an arc-shaped groove, and a fixing bolt, the laser welding head is rotatably mounted on the mounting plate. The arc-shaped groove is located in one of the mounting plate and the laser welding head, and the fixing bolt is located in the other. It is understood that when the angle of the laser welding head needs to be adjusted, the fixing bolt can be loosened, the laser welding head can be rotated to the corresponding angle, and then the fixing bolt can be tightened to fix the laser welding head at the adjusted rotation angle. Thus, on the one hand, the positioning using the fixing bolt and the arc-shaped groove allows for stepless adjustment of the laser welding head's rotation angle, improving the accuracy of the adjustment. On the other hand, the mechanical fixation of the laser welding head by the fixing bolt ensures that the angle of the laser welding head does not shift under welding vibration, avoiding secondary defects caused by vibration during the repair welding process.

[0011] According to some embodiments of the present invention, the linear motion device includes an X-axis linear module, a Y-axis linear module, and a Z-axis linear module. The X-axis linear module is movable along the X direction, the Y-axis linear module is movable along the Y direction, and the Z-axis linear module is movable along the Z direction. The Y-axis linear module is mounted on the frame, and the clamp is mounted on the output end of the Y-axis linear module. The X-axis linear module and the Z-axis linear module are movably connected to each other. The welding device is mounted on the output end of one of the X-axis linear module and the Z-axis linear module, and the other of the X-axis linear module and the Z-axis linear module is mounted on the frame.

[0012] The advantages are: This utility model utilizes a Y-axis linear module to drive the fixture to move along the Y direction, and uses X-axis and Z-axis linear modules to drive the welding device to move along the X and Z directions. It can be understood that the fixture only moves along the Y direction, which can reduce the inertial disturbance caused by multiple directions of movement to the fixture and ensure the stability of battery positioning. In addition, the X-axis and Z-axis linear modules drive the welding device to move along the X and Z directions, which can realize the rapid focusing response of the welding device, especially suitable for dense burst point repair scenarios. Moreover, by arranging the multiple modules of the linear motion device separately to drive the fixture and welding device, the risk of cable entanglement can be reduced, and the equipment failure rate can be reduced.

[0013] According to some embodiments of the present invention, the welding repair equipment further includes a wire feeder, which includes a welding wire conveying module and a welding wire guide. The welding wire conveying module is disposed on the frame and is used to convey welding wire to the welding wire guide. The welding wire guide is used to guide the welding wire to the welding position of the laser welding head.

[0014] The advantages of this invention are: by setting up a wire feeder, the wire feeder is used to deliver welding wire to the location of the battery welding defect. The welding wire fills the deep hole defect, solving the problem of insufficient depth of pure laser molten pool. In addition, by setting up a welding wire guide, the welding wire is accurately delivered to the location of the battery welding defect, ensuring that the filler accurately covers the defect and improving the quality of welding defect repair.

[0015] According to some embodiments of the present invention, the welding wire guide is connected to the laser welding head.

[0016] The advantage of this invention is that by connecting the welding wire guide to the laser welding head, the end of the welding wire and the laser focus always move synchronously, thus avoiding deviation of the wire feeding direction when adjusting the angle.

[0017] According to some embodiments of the present invention, a first sensor is provided on the laser welding head. The first sensor is electrically connected to the linear motion device. The first sensor is used to sense the distance between the laser welding head and the welding defect position of the battery on the fixture. The linear motion device receives the sensing signal from the first sensor and drives the laser welding head to automatically focus.

[0018] The advantages are: by setting a first sensor and connecting the first sensor to the cell of the linear motion device, this utility model can measure the distance of battery welding defects in real time and automatically calibrate the Z-axis height of the laser welding head, solve the defocusing problem in the repair welding process, adapt to the continuous repair of welding defects such as sealing nails, protrusions or depressions, and improve the yield of welding defect repair.

[0019] According to some embodiments of the present invention, the welding repair equipment also includes a dust removal device, which is used to remove welding slag and foreign matter generated during the welding process of the laser welding head.

[0020] The advantages of this invention are: by setting up a dust removal device, the slag and foreign matter generated during the laser welding process are removed, thereby preventing the slag from falling into the battery filling hole and causing a short circuit. In addition, it reduces the scattering interference of welding fumes on the laser beam and maintains the stability of the laser beam energy density.

[0021] According to some embodiments of the present invention, the dust removal device includes a vacuum cleaner, a vacuum cleaner base, and a connecting pipe connecting the vacuum cleaner and the vacuum cleaner base. The vacuum cleaner base is fixed to the bottom of the laser welding head. The vacuum cleaner base has a vertically penetrating laser channel. The laser channel is used to avoid the laser beam output by the laser welding head. The bottom of the vacuum cleaner base is provided with multiple suction ports, which are arranged radially outside the laser channel.

[0022] The advantages of this invention are: by setting multiple suction ports at the bottom of the dust collection base and surrounding the laser channel radially outside, the dust collection area of ​​the dust collection base can cover the welding defect location from all sides to the welding defect location, thereby improving the capture rate of welding slag and foreign objects by the dust removal device, while avoiding the spread of fumes generated during the welding process.

[0023] According to some embodiments of the present invention, a first connection port is provided on the top or side of the dust collection seat, the first connection port is connected to the dust collection port, and the first connection port is used to connect the connecting tube.

[0024] The advantage of this invention is that by setting a first connection port on the top or side of the dust collection seat, the first connection port is connected to the dust collection port and is used to connect the connecting tube, thereby enabling the first connection port to avoid the laser welding head and prevent the connecting tube from blocking the laser path of the laser welding head.

[0025] According to some embodiments of the present invention, the vacuum cleaner is mounted on the welding device, and the connecting pipe is a flexible hose.

[0026] The advantages of this invention are: by setting the vacuum cleaner on the welding device and setting the connecting pipe as a flexible hose, the vacuum cleaner and the vacuum holder can be connected by the flexible hose, which allows the vacuum holder and the vacuum cleaner to move relative to each other, thus facilitating the flexible arrangement of the dust removal device.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the repair welding equipment based on battery welding defect repair according to an embodiment of the present utility model; Figure 2 for Figure 1 The front view shown; Figure 3 for Figure 2 The enlarged view at point A is shown; Figure 4 for Figure 1 The left view shown; Figure 5 for Figure 1 The right view shown; Figure 6 for Figure 5 The enlarged view at point B is shown.

[0030] Reference numerals: 100-Frame, 110-Clamp, 120-Welding device, 130-Angle adjustment module, 140-Laser welding head, 150-Linear motion device, 160-Mounting plate, 170-Arc groove, 180-Fixing bolt, 190-X-axis linear module, 200-Y-axis linear module, 210-Z-axis linear module, 220-Wire feeder, 230-Welding wire conveying module, 240-Welding wire guide, 250-First sensor, 260-Dust removal device, 270-Vacuum cleaner, 280-Vacuum holder, 290-Connecting pipe, 300-Laser channel, 310-Vacuum port, 320-First connection port. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6This invention describes a repair welding device for repairing battery welding defects according to an embodiment of the present invention.

[0036] This invention aims to provide embodiments of a repair welding device for repairing battery welding defects.

[0037] Reference Figure 1 In this embodiment, the repair welding equipment for repairing battery welding defects mainly includes a frame 100, a fixture 110, a welding device 120, a linear motion device 150, a wire feeder 220, and a dust removal device 260.

[0038] For rack 100, rack 100 has horizontally arranged and mutually perpendicular X and Y directions, and a Z direction perpendicular to the X and Y directions.

[0039] For clamp 110, clamp 110 is used to fix the battery.

[0040] Reference Figure 2 and Figure 3 For the welding device 120, the welding device 120 is located above the fixture 110. The welding device 120 includes an angle adjustment module 130 and a laser welding head 140. The laser welding head 140 is used to repair welding defects on the battery on the fixture 110. The angle adjustment module 130 is used to adjust the rotation angle of the welding head along the X direction or the Y direction.

[0041] In this embodiment, an angle adjustment module 130 is set up to adjust the rotation angle of the welding head along the X or Y direction. It can be understood that by using the angle adjustment module 130 to adjust the rotation angle of the laser welding head 140 in the X or Y direction, the incident angle of the welding laser beam of the laser welding head 140 can be adjusted. This allows the laser welding head 140 to repair welding defects in the battery from multiple welding angles, so that the laser welding head 140 can adapt to repair welding defects on the battery or welding defects on the side of the battery from different angles. This avoids repair blind spots caused by the fixed angle of the laser welding head 140, which helps to reduce the scrap of defective welded products.

[0042] In some specific embodiments, the angle adjustment module 130 includes a mounting plate 160, an arc-shaped groove 170, and a fixing bolt 180. The laser welding head 140 is rotatably mounted on the mounting plate 160. The arc-shaped groove 170 extends circumferentially along the rotation axis of the laser welding head 140. The arc-shaped groove 170 is disposed in one of the mounting plate 160 and the laser welding head 140. The fixing bolt 180 is disposed in the other of the mounting plate 160 and the laser welding head 140. The fixing bolt 180 passes through the arc-shaped groove 170. The fixing bolt 180 and the arc-shaped groove 170 cooperate to fix the rotation angle of the laser welding head 140.

[0043] It should be explained that the fixing bolt 180 is provided in one of the mounting plate 160 and the laser welding head 140, that is, the fixing bolt 180 is threadedly connected to one of the mounting plate 160 and the laser welding head 140. After the fixing bolt 180 passes through the arc groove 170, the nut of the fixing bolt 180 can be abutted and fixed with the other of the mounting plate 160 and the laser welding head 140.

[0044] Understandably, when it is necessary to adjust the angle of the laser welding head 140, the fixing bolt 180 can be loosened, the laser welding head 140 can be rotated to the corresponding angle, and then the fixing bolt 180 can be tightened to fix the laser welding head 140, so that the laser welding head 140 is fixed at the adjusted rotation angle. Thus, on the one hand, by using the fixing bolt 180 and the arc groove 170 for positioning, stepless adjustment of the rotation angle of the laser welding head 140 can be achieved, which is beneficial to improving the adjustment accuracy of the rotation angle of the laser welding head 140. On the other hand, by using the fixing bolt 180 to mechanically fix the laser welding head 140, it is ensured that the angle of the laser welding head 140 does not shift under welding vibration, avoiding secondary defects caused by vibration during the repair welding process.

[0045] In some specific embodiments, multiple arc-shaped grooves 170 can be provided, and the multiple arc-shaped grooves 170 are arranged circumferentially along the rotation axis of the laser welding head 140. Multiple fixing bolts 180 are provided accordingly, and one fixing bolt 180 cooperates with one arc-shaped groove 170 for limiting.

[0046] In some specific embodiments, the laser welding head 140 is capable of rotating in the X direction, and the angle adjustment module 130 is used to adjust the rotation angle of the welding head in the X direction.

[0047] In other embodiments, the laser welding head 140 is rotatable in the Y direction, and the angle adjustment module 130 is used to adjust the rotation angle of the welding head in the Y direction.

[0048] In some specific embodiments, a first sensor 250 is provided on the laser welding head 140. The first sensor 250 is electrically connected to the linear motion device 150. The first sensor 250 is used to sense the distance between the laser welding head 140 and the welding defect position of the battery on the fixture 110. The linear motion device 150 receives the sensing signal from the first sensor 250 and drives the laser welding head 140 to automatically focus. Thus, it is possible to measure the distance of the battery welding defect in real time and automatically calibrate the Z-axis height of the laser welding head 140, solve the defocusing problem in the repair welding process, adapt to the continuous repair of welding defects such as sealing nails, protrusions or depressions, and improve the yield of welding defect repair.

[0049] Refer again Figure 1For the linear motion device 150, the linear motion device 150 is disposed between the frame 100 and the fixture 110 and / or the welding device 120. The linear motion device 150 is used to drive the fixture 110 and the welding device 120 to perform relative movements in the X, Y and Z directions, so that the welding defects of the battery on the fixture 110 are aligned with the welding position of the laser welding head 140.

[0050] In this embodiment, a linear motion device 150 is provided, which is positioned between the frame 100 and the fixture 110 and / or the welding device 120. That is, the linear motion device 150 is positioned between the frame 100 and the fixture 110, and / or between the frame 100 and the welding device 120. This allows the fixture 110 and the welding device 120 to perform relative movements in the X, Y, and Z directions, so that the welding defects of the battery are precisely aligned with the welding position of the laser welding head 140, thereby accurately repairing the welding defects on the battery.

[0051] In some specific embodiments, the linear motion device 150 includes an X-axis linear module 190, a Y-axis linear module 200, and a Z-axis linear module 210. The X-axis linear module 190 is movable along the X direction, the Y-axis linear module 200 is movable along the Y direction, and the Z-axis linear module 210 is movable along the Z direction. The Y-axis linear module 200 is mounted on the frame 100, and the clamp 110 is mounted on the output end of the Y-axis linear module 200. The X-axis linear module 190 and the Z-axis linear module 210 are movably connected to each other. The welding device 120 is mounted on the output end of one of the X-axis linear module 190 and the Z-axis linear module 210, and the other of the X-axis linear module 190 and the Z-axis linear module 210 is mounted on the frame 100.

[0052] In this embodiment, the Y-axis linear module 200 drives the fixture 110 to move along the Y direction, and the X-axis linear module 190 and the Z-axis linear module 210 drive the welding device 120 to move along the X and Z directions. It can be understood that the fixture 110 only moves along the Y direction, which can reduce the inertial disturbance caused by multiple directions of movement to the fixture 110 and ensure the stability of battery positioning. In addition, the X-axis linear module 190 and the Z-axis linear module 210 drive the welding device 120 to move along the X and Z directions, which can realize the rapid focusing response of the welding device 120, especially suitable for dense burst point repair scenarios. Moreover, by arranging the multiple modules of the linear motion device 150 separately to drive the movement of the fixture 110 and the welding device 120, the risk of cable entanglement can be reduced, and the equipment failure rate can be reduced.

[0053] In some specific embodiments, a gantry is provided on the frame 100, the X-axis linear module 190 is provided on the gantry, the Z-axis linear module 210 is provided at the output end of the X-axis linear module 190, and the welding device 120 is provided at the output end of the Z-axis linear module 210.

[0054] In other embodiments, a gantry is provided on the frame 100, the Z-axis linear module 210 is provided on the gantry, the X-axis linear module 190 is provided at the output end of the Z-axis linear module 210, and the welding device 120 is provided at the output end of the X-axis linear module 190.

[0055] In some specific embodiments, the Y-axis linear module 200 includes a Y-axis guide rail, a Y-axis slide block, and a Y-axis drive assembly. The Y-axis guide rail is mounted on the frame 100, the Y-axis slide block is slidably mounted on the Y-axis guide rail, and the Y-axis drive assembly is mounted on the frame 100. The Y-axis drive assembly is used to drive the Y-axis slide block to move.

[0056] Specifically, the Y-axis drive assembly can be configured as a pneumatic cylinder or a hydraulic cylinder.

[0057] In other embodiments, the Y-axis drive assembly may include a first screw and a first motor. The first screw extends along the Y-axis and is rotatably connected to the frame 100. The first screw is threadedly connected to the Y-axis slide. The first motor is fixed on the frame 100 and is used to drive the first screw to rotate. The rotation of the first screw drives the Y-axis slide to move along the Y direction.

[0058] In some specific embodiments, the X-axis linear module 190 includes an X-axis guide rail, an X-axis slide block, and an X-axis drive assembly. The X-axis guide rail and the X-axis drive assembly are mounted on the frame 100 or on the Z-axis linear module 210. The X-axis slide block is slidably mounted on the X-axis guide rail, and the X-axis drive assembly is used to drive the X-axis slide block to move.

[0059] Specifically, the X-axis drive assembly can be configured as a pneumatic cylinder or a hydraulic cylinder.

[0060] In other embodiments, the X-axis drive assembly may include a second screw and a second motor. The second screw extends along the X-axis and is rotatably connected to the frame 100 or the Z-axis linear module 210. The second screw is threadedly connected to the X-axis slide. The second motor is used to drive the second screw to rotate, and the rotation of the second screw causes the X-axis slide to move along the X direction.

[0061] In some specific embodiments, the Z-axis linear module 210 includes a Z-axis guide rail, a Z-axis slide block, and a Z-axis drive assembly. The Z-axis guide rail and the Z-axis drive assembly are mounted on the frame 100 or on the X-axis linear module 190. The Z-axis slide block is slidably mounted on the Z-axis guide rail, and the Z-axis drive assembly is used to drive the Z-axis slide block to move along the Z direction.

[0062] Specifically, the Z-axis drive assembly can be configured as a pneumatic cylinder or a hydraulic cylinder.

[0063] In other embodiments, the Z-axis drive assembly may include a third screw and a third motor. The third screw extends along the Z-axis and is rotatably connected to the frame 100 or the X-axis linear module 190. The third screw is threadedly connected to the Z-axis slide. The third motor is used to drive the third screw to rotate, and the rotation of the third screw causes the Z-axis slide to move along the Z direction.

[0064] Refer again Figure 1 and Figure 2 For the wire feeder 220, the wire feeder 220 includes a welding wire conveying module 230 and a welding wire guide 240. The welding wire conveying module 230 is mounted on the frame 100 and is used to convey welding wire to the welding wire guide 240. The welding wire guide 240 is used to guide the welding wire to the welding position of the laser welding head 140.

[0065] In this embodiment, a wire feeder 220 is set up to deliver welding wire to the location of the battery welding defect. The welding wire fills the deep hole defect, solving the problem of insufficient depth of pure laser molten pool. In addition, a welding wire guide 240 is set up to accurately deliver the welding wire to the location of the battery welding defect, ensuring that the filler accurately covers the defect and improving the quality of welding defect repair.

[0066] In some specific embodiments, the welding wire guide 240 is connected to the laser welding head 140, thereby ensuring that the end of the welding wire moves synchronously with the laser focus and avoiding deviation of the wire feeding direction when adjusting the angle.

[0067] In some specific embodiments, the wire guide 240 has a wire guide hole, the wire inlet end of which is used to receive the wire from the wire feed module 230, and the wire outlet end of which is located at the welding position of the laser head.

[0068] Reference Figure 4 , Figure 5 and Figure 6 As for the dust removal device 260, the dust removal device 260 is used to remove the welding slag and foreign objects generated during the welding process of the laser welding head 140, thereby preventing the welding slag from falling into the battery filling hole and causing a short circuit. In addition, it reduces the scattering interference of welding fumes on the laser beam and maintains the stability of the laser beam energy density.

[0069] Specifically, the dust removal device 260 includes a vacuum cleaner 270, a vacuum holder 280, and a connecting pipe 290 connecting the vacuum cleaner 270 and the vacuum holder 280. The vacuum holder 280 is fixed to the bottom of the laser welding head 140. The vacuum holder 280 has a vertically penetrating laser channel 300, which is used to avoid the laser beam output by the laser welding head 140. The bottom of the vacuum holder 280 is provided with multiple suction ports 310, which are arranged around the radial outer side of the laser channel 300.

[0070] In this embodiment, multiple suction ports 310 are provided at the bottom of the suction base 280, and the multiple suction ports 310 are arranged around the radial outer side of the laser channel 300. This allows the suction area of ​​the suction base 280 to cover the welding defect location from all sides to the welding defect location, thereby improving the capture rate of welding slag and foreign objects by the dust removal device 260, while avoiding the diffusion of fumes generated during the welding process.

[0071] In some specific embodiments, a first connection port 320 is provided on the top or side of the dust collection seat 280. The first connection port 320 is connected to the dust collection port 310. The first connection port 320 is used to connect the connecting tube 290, thereby enabling the first connection port 320 to avoid the laser welding head 140 and prevent the connecting tube 290 from blocking the laser path of the laser welding head 140.

[0072] Furthermore, the first connection port 320 is located on the side of the vacuum cleaner seat 280 away from the linear motion device 150, thereby avoiding interference between the first connection port 320 and the linear motion device 150.

[0073] Furthermore, the first connection port 320 has at least two ports.

[0074] In some specific embodiments, the vacuum cleaner 270 is mounted on the welding device 120, and the connecting pipe 290 is a flexible hose. Thus, the vacuum cleaner 270 and the vacuum holder 280 are connected by the flexible hose, which allows the vacuum holder 280 and the vacuum cleaner 270 to move relative to each other, thereby facilitating the flexible arrangement of the dust removal device 260.

[0075] Furthermore, the vacuum cleaner 270 is disposed on the top of the welding device 120, and the first connection port 320 extends obliquely upward, with one end of the first connection port 320 obliquely upward connected to the connecting pipe 290.

[0076] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] The terms "first," "second," "third," "fourth," etc. (if applicable) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0078] It should also be noted that, in the description of this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0079] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may also include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.

[0080] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0081] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A repair welding device for battery welding defects, characterized in that, include: The frame (100) has horizontally arranged and mutually perpendicular X and Y directions, and a Z direction perpendicular to the X and Y directions; Clamp (110) is used to secure the battery; The welding device (120), located above the fixture (110), includes an angle adjustment module (130) and a laser welding head (140). The laser welding head (140) is used to repair welding defects on the battery on the fixture (110), and the angle adjustment module (130) is used to adjust the rotation angle of the welding head along the X or Y direction. A linear motion device (150) is disposed between the frame (100) and the fixture (110) and / or the welding device (120) for driving the fixture (110) and the welding device (120) to perform relative movements in the X, Y and Z directions, so that the welding defects of the battery on the fixture (110) are aligned with the welding position of the laser welding head (140).

2. The repair welding equipment for battery welding defects according to claim 1, characterized in that, The angle adjustment module (130) includes a mounting plate (160), an arc groove (170), and a fixing bolt (180). The laser welding head (140) is rotatably mounted on the mounting plate (160). The arc groove (170) extends circumferentially along the rotation axis of the laser welding head (140). The arc groove (170) is located in one of the mounting plate (160) and the laser welding head (140). The fixing bolt (180) is located in the other of the mounting plate (160) and the laser welding head (140). The fixing bolt (180) passes through the arc groove (170). The fixing bolt (180) and the arc groove (170) cooperate to fix the rotation angle of the laser welding head (140).

3. The repair welding equipment for battery welding defects according to claim 1, characterized in that, The linear motion device (150) includes an X-axis linear module (190), a Y-axis linear module (200), and a Z-axis linear module (210). The X-axis linear module (190) can move along the X direction, the Y-axis linear module (200) can move along the Y direction, and the Z-axis linear module (210) can move along the Z direction. The Y-axis linear module (200) is mounted on the frame (100). The clamp (110) is mounted on the output end of the Y-axis linear module (200). The X-axis linear module (190) and the Z-axis linear module (210) are movably connected to each other. The welding device (120) is mounted on the output end of one of the X-axis linear module (190) and the Z-axis linear module (210). The other of the X-axis linear module (190) and the Z-axis linear module (210) is mounted on the frame (100).

4. The repair welding equipment for battery welding defects according to claim 1, characterized in that, It also includes a wire feeder (220), which includes a wire feeding module (230) and a wire guide (240). The wire feeding module (230) is mounted on the frame (100) and is used to feed the wire to the wire guide (240). The wire guide (240) is used to guide the wire to the welding position of the laser welding head (140).

5. The repair welding equipment for battery welding defects according to claim 4, characterized in that, The welding wire guide (240) is connected to the laser welding head (140).

6. The repair welding equipment for battery welding defect repair according to claim 1, characterized in that, The laser welding head (140) is provided with a first sensor (250), which is electrically connected to the linear motion device (150). The first sensor (250) is used to sense the distance between the laser welding head (140) and the welding defect position of the battery on the fixture (110). The linear motion device (150) receives the sensing signal from the first sensor (250) and drives the laser welding head (140) to automatically focus.

7. The repair welding equipment for battery welding defects according to claim 1, characterized in that, It also includes a dust removal device (260) for removing welding slag and foreign matter generated during the welding process of the laser welding head (140).

8. The repair welding equipment for battery welding defect repair according to claim 7, characterized in that, The dust removal device (260) includes a vacuum cleaner (270), a vacuum holder (280), and a connecting pipe (290) connecting the vacuum cleaner (270) and the vacuum holder (280). The vacuum holder (280) is fixed to the bottom of the laser welding head (140). The vacuum holder (280) has a vertically penetrating laser channel (300). The laser channel (300) is used to avoid the laser beam output by the laser welding head (140). The bottom of the vacuum holder (280) is provided with a plurality of suction ports (310). The plurality of suction ports (310) are arranged radially outside the laser channel (300).

9. The repair welding equipment for battery welding defect repair according to claim 8, characterized in that, The top or side of the vacuum holder (280) is provided with a first connection port (320), which is connected to the vacuum port (310) and is used to connect the connecting tube (290).

10. The repair welding equipment for battery welding defect repair according to claim 8, characterized in that, The vacuum cleaner (270) is mounted on the welding device (120), and the connecting pipe (290) is a flexible hose.

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