Automatic welding device for battery surface 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 surface soldering lug, which realizes efficient and accurate welding of a button battery power connection piece through collaborative optimization of a transmission mechanism, a fixing jig and a welding mechanism. The transmission mechanism adopts a linear driving module to drive the fixed platform to move and cooperates with the double welding units to synchronously work, so that the welding efficiency and speed are improved; each welding unit drives the corresponding welding module through the corresponding lifting module to achieve accurate vertical movement, and it is guaranteed that the welding pressure is stable and controllable; the welding module adopts a heat-conducting clamping arm and a welding rod structure which are oppositely arranged, and is matched with resistance heating and efficient heat-conducting connection of the heating module, so that rapid temperature rise is realized; the fixing jig effectively prevents the welding displacement of the battery through the embedded design that a battery positioning groove formed in the edge is matched with a pressing arm of a pressing plate, and the welding precision is further improved.

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 surface welding sheets. Background Technology

[0002] During the manufacturing process of button batteries, it is usually necessary to weld contact points to their positive and negative terminals to achieve a reliable connection between the battery and an external circuit. This type of welding requires extremely high positional precision, strict control of the welding temperature to avoid damaging the internal structure of the battery, and requires the solder joints to have stable conductivity and mechanical strength.

[0003] Currently, most welding operations are still done manually, requiring operators to manually position the battery, place the welding pieces, and perform the welding. This method is not only inefficient but also prone to problems such as misaligned welding, incomplete welding, or overheating due to human factors, resulting in a yield rate that is typically less than 90%. Furthermore, manual welding is physically demanding, and long-term operation may pose occupational health risks. Utility Model Content

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

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

[0006] An automatic welding device for battery surface tabs, comprising:

[0007] A transmission mechanism, comprising a linear drive module and a fixed platform mounted on the linear drive module; the linear drive module drives the fixed platform to move linearly in a horizontal direction.

[0008] A fixing fixture is fixed to the fixing platform. The fixing fixture includes a base connected to the fixing platform and a pressure plate disposed on the upper end of the base. The base is provided with two sets of parallel battery positioning slots.

[0009] The welding mechanism includes two welding units; the two welding units are spaced apart along the extension direction of the linear drive module, and each welding unit is corresponding to each set of battery positioning slots.

[0010] Preferably, the linear drive module includes a drive belt, a drive roller located at one end of the inner side of the drive belt, a driven roller located at the other end of the inner side of the drive belt, and a drive motor drivenly connected to the drive roller; the drive motor drives the drive roller to rotate, thereby driving the drive belt to rotate; the fixed platform is fixedly connected to the drive belt.

[0011] Preferably, the fixed platform is provided with a limiting block disposed opposite to it; the limiting block is used to abut against the side of the fixed fixture to limit the fixed fixture.

[0012] Preferably, the battery positioning slots are arranged at equal intervals along the length of the base, and the battery positioning slots are located near the long side of the base.

[0013] Preferably, the pressure plate includes a connecting body and a plurality of clamping arms extending from the side of the connecting body, the clamping arms being correspondingly arranged with the battery positioning groove, and the free end of the clamping arm extending into the battery positioning groove.

[0014] Preferably, the upper end face of the base is provided with a connecting hole, and the bottom of the connecting body is provided with a connecting post; the connecting post is inserted into the connecting hole to realize the assembly connection between the base and the pressure plate.

[0015] Preferably, the welding unit includes a support frame, a lifting module, a welding module, and a heating module; the lifting module is fixed to the side of the support frame facing the linear drive module; the welding module is fixed to the drive end of the lifting module; and the heating module is fixed to the side of the support frame away from the linear drive module and connected to the welding module.

[0016] Preferably, the lifting module includes a lifting cylinder and a movable frame connected by a drive; the lifting cylinder is fixed to the side of the support frame facing the linear drive module; the welding module is fixed to the movable frame; the lifting cylinder drives the movable frame to move vertically up and down, thereby driving the welding module to move vertically up and down.

[0017] Preferably, the welding module includes two opposing heat-conducting clamping arms and a welding rod disposed between the two heat-conducting clamping arms.

[0018] Preferably, the heating module includes a heating component fixed on the support frame and a heat-conducting connector with one end connected to the heating component; the other end of the heat-conducting connector is connected to the heat-conducting clamp arm.

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

[0020] The automatic welding device for battery surface contacts disclosed in this utility model achieves efficient and precise welding of button battery contacts through the coordinated optimization of the transmission mechanism, the fixing fixture, and the welding mechanism. The transmission mechanism uses a linear drive module to drive the fixed platform, and works synchronously with two welding units to improve welding efficiency and speed. Each welding unit uses a lifting module to drive the welding module to achieve precise vertical movement, ensuring stable and controllable welding pressure. The welding module uses a structure of relatively arranged heat-conducting clamping arms and welding rods, combined with the resistance heating and efficient heat conduction connection of the heating module, to achieve rapid heating. The fixing fixture effectively prevents battery welding displacement through the battery positioning groove set on the edge and the clamping arm of the pressure plate, further improving welding accuracy. Attached Figure Description

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

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

[0023] Figure 3 for Figure 1 A schematic diagram of the structure of the fixing fixture in the middle;

[0024] Figure 4 for Figure 3 Exploded view of the structure of the fixing fixture in the diagram;

[0025] Figure 5 for Figure 1 A schematic diagram of the welding unit in the diagram.

[0026] Numbering on the map:

[0027] 10-Transmission mechanism;

[0028] 11-Linear drive module; 111-Drive belt; 112-Drive roller; 113-Drive motor; 114-Connecting frame; 115-Coupling; 12-Fixed platform; 121-Limit block;

[0029] 20-Fixed fixture;

[0030] 21-Base; 211-Battery positioning slot; 212-Connecting hole; 22-Pressure plate; 221-Connecting body; 222-Pressure arm; 223-Connecting column;

[0031] 30 - Welding Unit;

[0032] 31-Support frame; 32-Lifting module; 321-Lifting cylinder; 322-Movable frame; 33-Welding module; 331-Heat-conducting clamping arm; 332-Welding rod; 34-Heat-generating module; 341-Heat-generating component; 342-Heat-conducting connector. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] like Figures 1 to 5 As shown, this utility model discloses an automatic battery surface welding device, comprising a transmission mechanism 10, a fixing fixture 20, and a welding mechanism. The fixing fixture 20 is mounted on the transmission mechanism 10, and the welding mechanism includes two welding units 30. During operation, the battery to be welded is positioned on the fixing fixture 20. The transmission mechanism 10 drives the fixing fixture 20 to move horizontally. During the horizontal movement of the fixing fixture 20, the two welding units 30 weld the battery on the fixing fixture 20. The linear drive of the transmission mechanism 10, combined with the synchronous operation of the two welding units 30, allows for simultaneous battery welding at two stations, automating the battery welding process and improving welding efficiency.

[0037] Please see Figure 1 and Figure 2The transmission mechanism 10 includes a linear drive module 11 and a fixed platform 12 disposed on the linear drive module 11. The linear drive module 11 drives the fixed platform 12 to move linearly in the horizontal direction.

[0038] Specifically, the linear drive module 11 includes a drive belt 111, a drive roller 112 located at one end of the inner side of the drive belt 111, a driven roller (not shown) located at the other end of the inner side of the drive belt 111, and a drive motor 113 drivenly connected to the drive roller 112. It also includes a connecting frame 114, which has a horizontally extending cavity with an open top in the middle. The drive belt 111 is installed in this cavity, and both the drive roller 112 and the driven roller are rotatably connected to the connecting frame 114. One end of the drive roller 112 extends out of the connecting frame 114 and is connected to the output end of the drive motor 113 via a coupling 115. Simultaneously, the fixed platform 12 is fixedly connected to the drive belt 111. The drive motor 113 drives the drive roller 112 to rotate, thereby causing the drive belt 111 to roll and driving the fixed platform 12 to move linearly in the horizontal direction. Using belt drive reduces vibration during transmission, ensuring smooth movement of the fixed platform 12 and thus guaranteeing the quality of subsequent welding.

[0039] Specifically, the fixed platform 12 is provided with two limiting blocks 121 arranged opposite to each other along the length of the fixed platform 12; when the fixed fixture 20 is installed on the fixed platform 12, the two limiting blocks 121 abut against the two sides of the fixed fixture 20 respectively, so as to realize the limiting and positioning function of the fixed fixture 20.

[0040] Please see Figure 3 and Figure 4 The fixing fixture 20 includes a base 21 connected to the fixing platform 12 and a pressure plate 22 disposed on the upper end of the base 21.

[0041] Specifically, the upper surface of the base 21 is provided with two sets of parallel battery positioning grooves 211. The two sets of battery positioning grooves 211 can adapt to the dual welding unit 30 configuration of this embodiment, improving welding efficiency. As shown in the figure, the battery positioning grooves 211 are equidistant along the length of the base 21, i.e., parallel to the driving direction of the linear drive module 11. When the linear drive module 11 drives the fixed platform 12 to move linearly, the welding mechanism can switch between adjacent battery positioning grooves 211. Simultaneously, the battery positioning grooves 211 are positioned close to the long side of the base 21, increasing the distance between the two sets of battery positioning grooves 211 and avoiding mutual interference between the two welding units 30. In this embodiment, the battery positioning grooves 211 are cylindrical for welding button batteries; understandably, the shape of the battery positioning grooves 211 can be adjusted for adaptability when processing batteries of other shapes. The upper surface of the base 21 is also provided with connection holes 212 for structural connection.

[0042] Specifically, the pressure plate 22 includes a connecting body 221 and multiple clamping arms 222 extending outward from the side of the connecting body 221. The number and position of the clamping arms 222 correspond to the battery positioning groove 211, and the free ends of the clamping arms 222 extend into the battery positioning groove 211. Before welding, the battery is placed into the battery positioning groove 211 of the base 21, and the pressure plate 22 is installed on the base 21. The clamping arms 222 can hold the battery in the battery positioning groove 211, preventing the battery from loosening in the vertical direction and improving welding accuracy. At the same time, the bottom of the connecting body of the pressure plate 22 is provided with a connecting post 223, which is used to insert into the connecting hole 212 to realize the assembly connection between the base 21 and the pressure plate 22.

[0043] Please see Figure 1 and Figure 5 The welding mechanism includes two welding units 30, which are spaced apart along the extension direction of the linear drive module 11. As shown in the figure, the two welding units 30 are not arranged side by side, so that each welding unit 30 corresponds to each set of battery positioning slots 211.

[0044] Specifically, the welding unit 30 includes a support frame 31, a lifting module 32, a welding module 33, and a heating module 34. The lifting module 32 is fixed to the side of the support frame 31 facing the linear drive module 11; the welding module 33 is fixed to the drive end of the lifting module 32; the lifting module 32 drives the welding module 33 to descend vertically and approach the battery for welding; the heating module 34 is fixed to the side of the support frame 31 away from the linear drive module 11 and is connected to the welding module 33.

[0045] The lifting module 32 includes a lifting cylinder 321 and a movable frame 322 connected by a drive; the lifting cylinder 321 is fixed to the side of the support frame 31 facing the linear drive module 11; the welding module 33 is fixed on the movable frame 322; the lifting cylinder 321 drives the movable frame 322 to rise and fall vertically, so as to drive the welding module 33 to rise and fall vertically.

[0046] The welding module 33 includes two opposing heat-conducting clamping arms 331 and a welding rod 332 disposed between the two heat-conducting clamping arms 331. In this embodiment, the heat-conducting clamping arms 331 are made of beryllium copper alloy or chromium zirconium copper with high thermal conductivity, while the welding rod 332 is made of tin-silver-copper solder alloy. During operation, the heat-conducting clamping arms 331 are connected to the heating module 34, serving both to clamp the welding rod 332 and to conduct heat so that the welding rod 332 can reach the working temperature.

[0047] The heating module 34 includes a heating element 341 fixed on a support frame 31 and a heat-conducting connector 342 connected at one end to the heating element 341; the other end of the heat-conducting connector 342 is connected to a heat-conducting clamp arm 331. The heating element 341 is specifically a ceramic heater, and the heat-conducting connector 342 is made of a material with high thermal conductivity to conduct the heat generated by the heating element 341 to the heat-conducting clamp arm 331.

[0048] Compared to existing technologies, the automatic welding device for battery surface contacts of this utility model achieves efficient and precise welding of button battery contacts through the coordinated optimization of the transmission mechanism 10, the fixing fixture 20, and the welding mechanism. The transmission mechanism 10 uses a linear drive module 11 to drive the fixed platform 12 to move, and works synchronously with the dual welding units 30 to improve welding efficiency and speed. Each welding unit 30 drives the welding module 33 to achieve precise vertical movement through the lifting module 32, ensuring stable and controllable welding pressure. The welding module 33 adopts a structure of oppositely arranged heat-conducting clamping arms 331 and welding rods 332, and works with the resistance heating and efficient heat conduction connection of the heating module 34 to achieve rapid heating. The fixing fixture 20 effectively prevents battery welding displacement through the battery positioning groove 211 set on the edge and the clamping arm 222 of the pressure plate 22 embedded design, further improving welding accuracy.

[0049] 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 surface tabs, characterized in that, include: A transmission mechanism, comprising a linear drive module and a fixed platform mounted on the linear drive module; the linear drive module drives the fixed platform to move linearly in a horizontal direction. A fixing fixture is fixed to the fixing platform. The fixing fixture includes a base connected to the fixing platform and a pressure plate disposed on the upper end of the base. The base is provided with two sets of parallel battery positioning slots. The welding mechanism includes two welding units; the two welding units are spaced apart along the extension direction of the linear drive module, and each welding unit is corresponding to each set of battery positioning slots.

2. The automatic welding device for battery surface tabs according to claim 1, characterized in that, The linear drive module includes a drive belt, a drive roller located at one end of the inner side of the drive belt, a driven roller located at the other end of the inner side of the drive belt, and a drive motor drivenly connected to the drive roller; the drive motor drives the drive roller to rotate, thereby driving the drive belt to rotate. The fixed platform is fixedly connected to the transmission belt.

3. The automatic welding device for battery surface tabs according to claim 1, characterized in that, The fixed platform is provided with a limiting block arranged opposite to it; the limiting block is used to abut against the side of the fixed fixture to limit the fixed fixture.

4. The automatic welding device for battery surface tabs according to claim 1, characterized in that, The battery positioning slots are arranged at equal intervals along the length of the base, and the battery positioning slots are located near the long side of the base.

5. The automatic welding device for battery surface tabs according to claim 1, characterized in that, The pressure plate includes a connecting body and a plurality of clamping arms extending from the side of the connecting body. The clamping arms are correspondingly arranged with the battery positioning groove, and the free end of the clamping arm extends into the battery positioning groove.

6. The automatic welding device for battery surface tabs according to claim 5, characterized in that, The upper surface of the base is provided with a connecting hole, and the bottom of the connecting body is provided with a connecting post; the connecting post is inserted into the connecting hole to realize the assembly connection between the base and the pressure plate.

7. The automatic welding device for battery surface tabs according to claim 1, characterized in that, The welding unit includes a support frame, a lifting module, a welding module, and a heating module; the lifting module is fixed to the side of the support frame facing the linear drive module; the welding module is fixed to the drive end of the lifting module; the heating module is fixed to the side of the support frame away from the linear drive module and is connected to the welding module.

8. The automatic welding device for battery surface solder pads according to claim 7, characterized in that, The lifting module includes a lifting cylinder and a movable frame connected by a drive; the lifting cylinder is fixed to the side of the support frame facing the linear drive module; the welding module is fixed on the movable frame; the lifting cylinder drives the movable frame to move vertically up and down, thereby driving the welding module to move vertically up and down.

9. The automatic welding device for battery surface tabs according to claim 8, characterized in that, The welding module includes two opposing heat-conducting clamping arms and a welding rod disposed between the two heat-conducting clamping arms.

10. The automatic welding device for battery surface tabs according to claim 9, characterized in that, The heating module includes a heating component fixed on the support frame and a heat-conducting connector with one end connected to the heating component; the other end of the heat-conducting connector is connected to the heat-conducting clamp arm.

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