Automatic welding device for battery side soldering lug

Abstract

The utility model relates to the technical field of battery processing equipment, in particular to an automatic welding device for a battery side soldering lug. A first positioning groove row and a second positioning groove row which are arranged on the battery jig in parallel correspond to a first welding assembly and a second welding assembly on the two sides of the linear module respectively, synchronous welding of two rows of batteries is achieved through the symmetrical double-station design, meanwhile, a welding window is arranged, a lateral stretching welding space is provided, and the welding efficiency is improved. The machining requirement of lateral welding is met; in addition, the modular design of the jig body, the first limiting plate, the second limiting plate and the pressing plate is adopted in the battery jig, limiting of the battery in the horizontal direction and the vertical direction is achieved, welding deviation is avoided, and the welding precision is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of battery processing equipment technology, and in particular to an automatic welding device for battery side welding sheets. Background Technology

[0002] Side welding is a critical process in battery manufacturing, especially for applications such as connecting tabs to the casing of cylindrical or prismatic batteries, and connecting batteries in series or parallel. Traditional welding methods typically require precisely welding metal sheets or conductive tabs to the sides of the battery to ensure good conductivity and structural stability. However, due to the limited space on the sides of the battery and the high precision required for welding positions, manual operation or ordinary welding equipment cannot consistently achieve high-quality welding results, easily leading to problems such as incomplete welds, misalignment, or thermal damage, which in turn affect the safety and consistency of the battery.

[0003] Existing welding equipment typically employs single-sided welding mechanisms or fixed welding fixtures, making it difficult to adapt to the multi-angle welding requirements of battery sides, especially for densely packed battery packs. Due to the lack of flexible positioning and synchronous welding capabilities, existing equipment often requires multiple adjustments or step-by-step welding, which is not only inefficient but also makes it difficult to ensure the consistency of welding positions. Furthermore, manual operation or semi-automated equipment is prone to fluctuations in welding accuracy due to human factors, increasing the defect rate. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide an automatic welding device for battery side welding sheets.

[0005] The present invention adopts the following technical solution:

[0006] An automatic welding device for battery side laminations includes a linear module, a battery fixture, a first welding assembly, and a second welding assembly. The battery fixture is mounted on the linear module, and the linear module drives the battery fixture to move linearly in a horizontal direction. The battery fixture has a plurality of first positioning grooves and second positioning grooves arranged parallel to each other along its length. The sides of the first positioning grooves and second positioning grooves are provided with welding windows extending outward. The first welding assembly and the second welding assembly are respectively disposed on both sides of the linear module.

[0007] When the linear module drives the battery fixture to move horizontally, the first welding component extends laterally into the corresponding first positioning groove through the welding window to perform welding, and at the same time, the second welding component extends laterally into the corresponding second positioning groove through the welding window to perform welding.

[0008] Preferably, the linear module includes a drive motor, a transmission belt driven by the drive motor, and a movable seat fixedly connected to the transmission belt; the drive motor drives the transmission belt to rotate so as to move the movable seat horizontally; the battery fixture is mounted on the movable seat.

[0009] Preferably, the movable seat is provided with two U-shaped positioning blocks arranged opposite each other; the battery fixture is assembled between the two positioning blocks to achieve positioning of the battery fixture.

[0010] Preferably, it further includes a first pressing component disposed on the positioning block, the first pressing component including a rotating shaft fixed to the positioning block, a rotating member rotatably connected to the top of the rotating shaft, and a lower pressing block fixed to the end of the rotating member away from the rotating shaft.

[0011] Preferably, the device further includes a second clamping assembly disposed on the positioning block. The second clamping assembly includes a connecting frame fixed to the positioning block, a pressing cylinder vertically mounted on the connecting frame, and a pressing block fixed to the telescopic end of the pressing cylinder. The pressing cylinder drives the pressing block to press down vertically to clamp the battery fixture.

[0012] Preferably, the battery fixture includes a fixture body, a first limiting plate disposed on one side of the fixture body, and a second limiting plate disposed on the other side of the fixture body;

[0013] The fixture body has a first placement groove on one side facing the first limiting plate, and a second placement groove on one side of the first limiting plate; when the first limiting plate is in contact with the fixture body, the first placement groove and the second placement groove form a first positioning groove; there is a drop between the top of the first limiting plate and the top of the fixture body to form the welding window.

[0014] The fixture body has a third placement groove on one side facing the second limiting plate, and a fourth placement groove on one side of the second limiting plate; when the second limiting plate is in contact with the fixture body, the third placement groove and the fourth placement groove form a second positioning groove; there is a drop between the top of the second limiting plate and the top of the fixture body to form the welding window.

[0015] Preferably, the battery fixture further includes a pressure plate mounted on the top of the fixture body.

[0016] Preferably, the first welding assembly and the second welding assembly have the same structure; the first welding assembly includes a horizontal drive module and a welding module fixed to the drive end of the horizontal drive module; the horizontal drive module drives the welding module to move horizontally perpendicular to the drive direction of the linear module.

[0017] Preferably, the horizontal drive module includes a slide rail, a slider slidably connected to the slide rail, and a push cylinder drivenly connected to the slider; the push cylinder drives the slider to slide along the slide rail; the slider is provided with a connecting shaft slidably connected thereto, one end of the connecting shaft is fixedly connected to the welding module, and a metal spring is provided between the slider and the welding module, the metal spring being sleeved on the outside of the connecting shaft.

[0018] Preferably, the welding module includes a heat-conducting seat connected to the connecting shaft, two clamping arms disposed opposite to the top of the heat-conducting seat, and a welding rod disposed between the two clamping arms.

[0019] The beneficial effects of this utility model are as follows:

[0020] The automatic welding device for battery side plates involved in this utility model drives the battery fixture to move horizontally through a linear module. The first and second positioning slots arranged in parallel on the battery fixture correspond to the first and second welding components on both sides of the linear module, respectively. This symmetrical dual-station design enables synchronous welding of two rows of batteries. At the same time, by setting a welding window, space is provided for lateral welding, which can meet the processing requirements of lateral welding. In addition, the battery fixture adopts a modular design of fixture body, first limiting plate, second limiting plate and pressure plate to limit the horizontal and vertical directions of the battery, avoid welding offset and ensure welding accuracy. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the automatic welding device for battery side plates according to the present invention.

[0022] Figure 2 This is a top view of the automatic welding device for battery side plates according to the present invention.

[0023] Figure 3 for Figure 1 A schematic diagram of the structure of the automatic welding device for the side weld plates of the battery after hiding some components;

[0024] Figure 4 for Figure 1 A schematic diagram of the battery fixture in the diagram;

[0025] Figure 5 for Figure 4 An exploded view of the battery fixture structure;

[0026] Figure 6 for Figure 1 A schematic diagram of the structure of the first welding component.

[0027] Numbering on the map:

[0028] 10-Linear module; 11-Drive motor; 12-Drive belt; 13-Modible seat; 14-Drive shaft; 15-Coupling; 16-Positioning block;

[0029] 20-Battery fixture; 21-First positioning groove; 22-Second positioning groove; 23-Welding window; 24-Jig body; 241-First placement groove; 242-Third placement groove; 25-First limiting plate; 251-Second placement groove; 26-Second limiting plate; 261-Fourth placement groove; 27-Pressure plate;

[0030] 30-First welding assembly; 31-Horizontal drive module; 311-Slide rail; 312-Slider; 313-Push cylinder; 314-Connecting shaft; 315-Metal spring; 32-Welding module; 321-Heat-conducting base; 322-Clamping arm; 323-Welding rod;

[0031] 40 - Second welding assembly;

[0032] 50 - First clamping assembly; 51 - Rotating shaft; 52 - Rotating component; 53 - Lower pressure block;

[0033] 60-Second clamping assembly; 61-Connecting frame; 62-Pressing cylinder; 63-Pressure block. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection 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 according to the specific circumstances.

[0037] like Figures 1 to 6 As shown, this utility model discloses an automatic welding device for battery side laminations, comprising a linear module 10, a battery fixture 20, a first welding assembly 30, and a second welding assembly 40. The battery fixture 20 is mounted on the linear module 10, and the first welding assembly 30 and the second welding assembly 40 are respectively disposed on both sides of the linear module 10. During processing, the battery is positioned in the battery fixture 20, and the linear module 10 drives the battery fixture 20 to move horizontally. Simultaneously, the first welding assembly 30 and the second welding assembly 40 extend laterally into the battery fixture 20 to weld the battery side. The above-mentioned mechanical structure layout and processing flow are reasonable, meeting the processing requirements of side welding. Simultaneous welding on both sides improves welding efficiency and meets the needs of mass production of batteries.

[0038] Please see Figures 1 to 3 The linear module 10 includes a drive motor 11, a transmission belt 12 driven by the drive motor 11, and a movable seat 13 fixedly connected to the transmission belt 12. The inner ends of the transmission belt 12 are respectively provided with a drive shaft 14 and a driven shaft (not shown in the figure). One end of the drive shaft 14 is connected to the drive end of the drive motor 11 via a coupling 15. The drive motor 11 drives the drive shaft 14 to rotate, thereby causing the transmission belt 12 to roll, and thus driving the movable seat 13 to move horizontally. The battery fixture 20 and the movable seat 13 are detachably connected. During processing, the battery fixture 20 is placed on the movable seat 13 to achieve horizontal movement of the battery fixture 20.

[0039] Specifically, to avoid welding deviations caused by loosening of the battery fixture 20, two U-shaped positioning blocks 16 are provided on the movable seat 13. The opposite surfaces of the two positioning blocks 16 are provided with U-shaped slots. When the battery fixture 20 is assembled between the two positioning blocks 16, the positioning blocks 16 can hold the battery fixture 20 in place, preventing the battery fixture 20 from shifting in the horizontal plane.

[0040] Furthermore, a first clamping assembly 50 and a second clamping assembly 60 are also provided. The first clamping assembly 50 includes a rotating shaft 51 fixed to the positioning block 16, a rotating member 52 rotatably connected to the top of the rotating shaft 51, and a lower pressing block 53 fixed to the end of the rotating member 52 away from the rotating shaft 51. When the battery fixture 20 needs to be installed, the rotating member 52 rotates around the axis of the rotating shaft 51, causing the lower pressing block 53 to move out of the range of the movable seat 13, making it easier to install the battery fixture 20. After the battery fixture 20 is installed, the lower pressing block 53 is rotated to the upper end of the battery fixture 20, so that the lower pressing block 53 can press the battery fixture 20. The second clamping assembly 60 includes a connecting frame 61 fixed to the positioning block 16, a lower pressing cylinder 62 vertically installed on the connecting frame 61, and a pressing block 63 fixed to the telescopic end of the lower pressing cylinder 62. The lower pressing cylinder 62 drives the pressing block 63 to press down vertically to press the battery fixture 20. The first clamping component 50 and the second clamping component 60 work together to clamp the battery fixture 20, ensuring the installation stability of the battery fixture 20 and thus reducing processing errors in the subsequent welding process.

[0041] Please see Figure 4 and Figure 5 The battery fixture 20 is provided with a plurality of first positioning grooves 21 and second positioning grooves 22 arranged in parallel along its length direction. The sides of the first positioning grooves 21 and second positioning grooves 22 are provided with welding windows 23 extending outward. The first positioning grooves 21 and second positioning grooves 22 are used for positioning the battery. The welding windows 23 allow the first welding assembly 30 and the second welding assembly 40 to extend laterally into the welding for welding.

[0042] Specifically, the battery fixture 20 includes a fixture body 24, a first limiting plate 25 disposed on one side of the fixture body 24, a second limiting plate 26 disposed on the other side of the fixture body 24, and a pressure plate 27 disposed on the top of the fixture body 24. The first limiting plate 25 and the second limiting plate 26 are used to limit the battery in the horizontal direction, and the pressure plate 27 is used to limit the battery in the vertical direction.

[0043] Among them, such as Figure 5As shown, the jig body 24 has a first placement groove 241 on the side facing the first limiting plate 25, and a second placement groove 251 on the side facing the first limiting plate 25. When the first limiting plate 25 is in contact with the jig body 24, the first placement groove 241 and the second placement groove 251 form a first positioning groove 21. There is a height difference between the top of the first limiting plate 25 and the top of the jig body 24 to form a welding window 23. The jig body 24 has a third placement groove 242 on the side facing the second limiting plate 26, and a fourth placement groove 261 on the side facing the second limiting plate 26. When the second limiting plate 26 is in contact with the jig body 24, the third placement groove 242 and the fourth placement groove 261 form a second positioning groove 22. There is a height difference between the top of the second limiting plate 26 and the top of the jig body 24 to form a welding window 23.

[0044] Please see Figure 6 Since the first welding assembly 30 and the second welding assembly 40 have the same structure, the structural description of the first welding assembly 30 is described in detail here, while the structural description of the second welding assembly 40 is omitted. The first welding assembly 30 includes a horizontal drive module 31 and a welding module 32 fixed to the drive end of the horizontal drive module 31; the horizontal drive module 31 drives the welding module 32 to move horizontally perpendicular to the driving direction of the linear module 10.

[0045] Specifically, the horizontal drive module 31 includes a slide rail 311, a slider 312 slidably connected to the slide rail 311, and a push cylinder 313 driven by the slider 312. The push cylinder 313 drives the slider 312 to slide along the slide rail 311. The slider 312 is provided with a connecting shaft 314 slidably connected thereto. One end of the connecting shaft 314 is fixedly connected to the welding module 32. A metal spring 315 is provided between the slider 312 and the welding module 32, and the metal spring 315 is sleeved on the outside of the connecting shaft 314. When the push cylinder 313 pushes the slider 312 toward the linear module 10, the slider 312 compresses the metal spring 315, and then the metal spring 315 resets, causing the welding module 32 to move toward the battery fixture 20. Conversely, when the push cylinder 313 drives the slider 312 away from the linear module 10, the slider 312 stretches the metal spring 315, and then the metal spring 315 resets, pulling the welding assembly away from the battery fixture 20. Meanwhile, when the welding module 32 comes into contact with the battery, the buffering effect of the metal spring 315 enables stable control of the welding pressure, avoiding potential problems such as incomplete welding or over-welding during the welding process.

[0046] Specifically, the welding module 32 includes a heat-conducting base 321 connected to the connecting shaft 314, two clamping arms 322 oppositely disposed on the top of the heat-conducting base 321, and a welding rod 323 disposed between the two clamping arms 322. During operation, the heat-conducting base 321 is connected to a heat-generating device such as a resistance heater. Both the heat-conducting base 321 and the clamping arms 322 are made of materials with high thermal conductivity, conducting high heat to the welding rod 323, allowing the welding rod 323 to reach its operating temperature. In this embodiment, a soldering process is used, and the main substrate of the welding rod 323 is tin.

[0047] Compared to existing technologies, the automatic welding device for battery side plates involved in this utility model drives the battery fixture 20 to move horizontally through the linear module 10. The first positioning groove 21 rows and the second positioning groove 22 rows arranged in parallel on the battery fixture 20 correspond to the first welding component 30 and the second welding component 40 on both sides of the linear module 10, respectively. This symmetrical dual-station design enables synchronous welding of two rows of batteries. At the same time, by setting a welding window 23, space is provided for lateral welding, which is adapted to the processing requirements of lateral welding. In addition, the battery fixture 20 adopts a modular design of fixture body 24, first limiting plate 25, second limiting plate 26 and pressure plate 27 to limit the horizontal and vertical directions of the battery, avoid welding offset and ensure welding accuracy.

[0048] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. An automatic welding device for battery side bonding pads, characterized in that, The device includes a linear module, a battery fixture, a first welding assembly, and a second welding assembly. The battery fixture is mounted on the linear module, and the linear module drives the battery fixture to move linearly in a horizontal direction. The battery fixture has multiple first positioning slots and second positioning slots arranged parallel to each other along its length. The sides of the first positioning slots and second positioning slots are provided with welding windows extending outward. The first welding assembly and the second welding assembly are respectively disposed on both sides of the linear module. When the linear module drives the battery fixture to move horizontally, the first welding component extends laterally into the corresponding first positioning groove through the welding window to perform welding, and at the same time, the second welding component extends laterally into the corresponding second positioning groove through the welding window to perform welding.

2. The automatic welding device for battery side laminations according to claim 1, characterized in that, The linear module includes a drive motor, a transmission belt driven by the drive motor, and a movable seat fixedly connected to the transmission belt; the drive motor drives the transmission belt to rotate so as to move the movable seat horizontally; the battery fixture is assembled on the movable seat.

3. The automatic welding device for battery side laminations according to claim 2, characterized in that, The movable seat is provided with two U-shaped positioning blocks arranged opposite each other; the battery fixture is assembled between the two positioning blocks to achieve positioning of the battery fixture.

4. The automatic welding device for battery side laminations according to claim 3, characterized in that, It also includes a first pressing assembly disposed on the positioning block. The first pressing assembly includes a rotating shaft fixed to the positioning block, a rotating member rotatably connected to the top of the rotating shaft, and a lower pressing block fixed to the end of the rotating member away from the rotating shaft.

5. The automatic welding device for battery side laminations according to claim 3, characterized in that, It also includes a second clamping assembly disposed on the positioning block. The second clamping assembly includes a connecting frame fixed on the positioning block, a pressing cylinder vertically mounted on the connecting frame, and a pressing block fixed to the telescopic end of the pressing cylinder. The pressing cylinder drives the pressing block to press down vertically to clamp the battery fixture.

6. The automatic welding device for battery side laminations according to claim 1, characterized in that, The battery fixture includes a fixture body, a first limiting plate disposed on one side of the fixture body, and a second limiting plate disposed on the other side of the fixture body; The fixture body has a first placement groove on one side facing the first limiting plate, and a second placement groove on one side of the first limiting plate; when the first limiting plate is in contact with the fixture body, the first placement groove and the second placement groove form a first positioning groove; there is a drop between the top of the first limiting plate and the top of the fixture body to form the welding window. The fixture body has a third placement groove on one side facing the second limiting plate, and a fourth placement groove on one side of the second limiting plate; when the second limiting plate is in contact with the fixture body, the third placement groove and the fourth placement groove form a second positioning groove; there is a drop between the top of the second limiting plate and the top of the fixture body to form the welding window.

7. The automatic welding device for battery side laminations according to claim 6, characterized in that, The battery fixture also includes a pressure plate mounted on the top of the fixture body.

8. The automatic welding device for battery side laminations according to claim 1, characterized in that, The first welding assembly and the second welding assembly have the same structure; the first welding assembly includes a horizontal drive module and a welding module fixed to the drive end of the horizontal drive module; the horizontal drive module drives the welding module to move horizontally perpendicular to the drive direction of the linear module.

9. The automatic welding device for battery side laminations according to claim 8, characterized in that, The horizontal drive module includes a slide rail, a slider slidably connected to the slide rail, and a push cylinder drivenly connected to the slider; the push cylinder drives the slider to slide along the slide rail; the slider is provided with a connecting shaft slidably connected thereto, one end of the connecting shaft is fixedly connected to the welding module, and a metal spring is provided between the slider and the welding module, the metal spring being sleeved on the outside of the connecting shaft.

10. The automatic welding device for battery side laminations according to claim 9, characterized in that, The welding module includes a heat-conducting seat connected to the connecting shaft, two clamping arms disposed opposite to the top of the heat-conducting seat, and a welding rod disposed between the two clamping arms.

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