Floating type welding pressing nozzle
By designing a floating welding nozzle and using a spring and connecting rod structure to achieve floating buffering of the welding nozzle, the problem of dents caused by direct hard pressure during battery module welding was solved, improving the product qualification rate and appearance quality.
Patent Information
- Application Number
- CN202423128930.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In the current battery module tab welding process, the lack of a floating buffer device makes the surface of the battery module easily damaged, resulting in dents and indentations, which reduces the product qualification rate.
A floating welding nozzle is designed, which uses a spring and connecting rod structure to achieve floating buffering of the welding nozzle, avoiding direct hard pressure that would cause indentation on the surface of the battery tabs. The combination of a positioning plate and a floating plate ensures the buffering effect during the welding process.
It effectively avoids the occurrence of indentations on the surface of battery tabs, improves product qualification rate, reduces the probability of appearance damage, and enhances the stability and precision of the welding process.
Smart Images
Figure CN223734092U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of battery manufacturing technology, specifically relating to a floating welding nozzle. Background Technology
[0002] The existing battery module tab drainage laser welding mainly consists of a battery module lifting mechanism, a tooling fixing plate, a tooling guide plate, a laser welding fixing plate, and a tab welding nozzle. During use, the tab welding nozzle adopts rigid contact. The battery module on the tooling plate contacts the welding fixing plate and the welding nozzle under the action of the lifting cylinder. Due to the lack of a floating buffer device, the appearance of the upper surface of the battery module is easily damaged, increasing the possibility of indentations on the tab welding surface. Utility Model Content
[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a floating welding nozzle. The nozzle presses against the battery module to achieve floating buffering, avoiding indentations on the battery tab surface caused by direct hard pressing, reducing the probability of product damage, and improving the product qualification rate.
[0004] The objective of this utility model can be achieved through the following technical solutions:
[0005] A floating welding nozzle, comprising:
[0006] A positioning plate, wherein a plurality of evenly distributed welding joints are provided on the positioning plate;
[0007] A floating plate is located below a positioning plate. The floating plate has several mounting holes corresponding to the welding joints. Several positioning posts are fixedly connected to the periphery of the mounting holes. A first stop block is fixedly connected to the upper end of each positioning post.
[0008] A welding nozzle is inserted into the mounting opening. The upper circumference of the welding nozzle is slidably connected to the positioning post. A first spring is sleeved on the positioning post at the upper end of the welding nozzle.
[0009] Two guide posts are fixedly connected to each end of the floating plate. The upper end of the guide post is slidably connected to the positioning plate. Two sliders are slidably connected to each guide post. A second spring is sleeved on the guide post between the two sliders. Two extrusion plates are arranged between the two guide posts at the same end of the floating plate. Two connecting rods are rotatably connected to the side of the extrusion plates. The other end of the connecting rods is rotatably connected to the corresponding slider. A third spring is fixedly connected between the two extrusion plates.
[0010] The principles and technical effects of the above technical solution are as follows:
[0011] The floating welding nozzle of this invention is installed on the welding equipment, above the battery module lifting mechanism. The lifting mechanism lifts the battery module upwards, and the battery module first contacts the welding nozzle. As the lifting mechanism continues to lift the battery module upwards, the welding nozzle moves upwards accordingly. At this time, the first spring is compressed and contracts. Simultaneously, due to the unstable positioning plate, the floating plate also rises slightly, reducing the distance between the positioning plate and the floating plate. The distance between the two sliders on the same guide column also decreases, and the second spring is compressed and contracts. At the same time, under the action of the connecting rod, the two pressing plates move towards each other, and the third spring is compressed and contracts. Throughout the process, the welding nozzle presses the battery module to achieve floating buffering, avoiding the phenomenon of indentation marks on the surface of the battery tabs caused by direct hard pressure, reducing the probability of product appearance damage, and improving the product qualification rate. The welding port guides the welding gun.
[0012] In a preferred embodiment, the present invention can be further configured such that: both ends of the positioning plate are fixedly connected to fixing plates, and the fixing plates are provided with connecting holes.
[0013] In a preferred embodiment, the present invention can be further configured such that a second stop is fixedly connected to the top of the guide post.
[0014] In a preferred embodiment, the present invention can be further configured such that the height of the positioning post is less than the minimum distance between the positioning plate and the floating plate.
[0015] In a preferred embodiment, the present invention can be further configured such that the height of the extrusion plate is less than the minimum distance between the positioning plate and the floating plate.
[0016] In a preferred embodiment, this utility model can be further configured as follows: two extrusion plates located at the same end of the floating plate are provided with through holes arranged along the same axis, a limit rod is provided between the two extrusion plates, the two ends of the limit rod are slidably connected to the through holes, and a third stop block is fixedly connected to the ends of the limit rod.
[0017] In a preferred embodiment, the present invention can be further configured such that: a connecting plate is fixedly connected to the upper end of the welding nozzle, and the connecting plate is slidably connected to the positioning post.
[0018] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:
[0019] A fixed connection refers to a connection in which parts or components are fixed in place, with no relative movement between them. These connections are divided into two types: detachable and non-detachable.
[0020] (1) Detachable connections use screws, splines, wedges, etc. to fix parts together. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of bolts, keys, wedges) and properly tightened.
[0021] (2) Non-removable connections mainly refer to welding, riveting, and tenon joints. Since disassembly is required by forging, sawing, or oxy-acetylene cutting during repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to the process quality, technical inspection, and remedial measures (such as correction, polishing, etc.) when making connections.
[0022] A threaded connection is a detachable connection in which threaded parts (or the threaded portion of the connected parts) are joined together as one unit.
[0023] A sliding connection refers to two objects that are in contact but not fixed, and can slide relative to each other.
[0024] A rotating connection is a connection between parts that allows the parts to rotate relative to each other.
[0025] The beneficial effects of this utility model are:
[0026] The welding nozzle presses against the battery module to achieve a floating buffer, avoiding indentations on the battery tab surface caused by direct hard pressure, reducing the probability of product damage and improving the product qualification rate. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0029] Figure 2 This is a schematic diagram of the floating plate structure according to an embodiment of the present utility model;
[0030] Figure 3 This is a schematic diagram of the welding nozzle structure according to an embodiment of the present utility model. Detailed Implementation
[0031] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0032] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0033] Based on the concept of this application, combined with Figures 1 to 3 This invention describes an embodiment of a floating welding nozzle. Specifically, the floating welding nozzle is constructed as a split structure, comprising a positioning plate 1, a floating plate 2, and a welding nozzle 3, which work together. The floating welding nozzle is installed on a welding device, positioned above a battery module lifting mechanism. The lifting mechanism lifts the battery module upwards, initially bringing it into contact with the welding nozzle 3. As the lifting mechanism continues to lift the battery module, the welding nozzle 3 moves upwards, compressing the first spring 4. Simultaneously, because the positioning plate 1 is not fixed, the floating plate 2 also rises slightly. The distance between the positioning plate 1 and the floating plate 2 is reduced, and the distance between the two sliders 5 on the same guide post 24 is also reduced. The second spring 6 is compressed and contracted. At the same time, under the action of the connecting rod 71, the two pressing plates 7 move towards each other, and the third spring 8 is compressed and contracted. Throughout the process, the welding nozzle 3 presses the battery module to achieve floating buffer, avoiding the phenomenon of indentation marks on the surface of the battery tabs caused by direct hard pressure, reducing the probability of product appearance damage, and improving the product qualification rate. The welding port 11 guides the welding gun.
[0034] like Figure 1-3 As shown, a floating welding nozzle includes:
[0035] Positioning plate 1, with several evenly distributed welding ports 11 on the positioning plate 1;
[0036] Floating plate 2 is located below positioning plate 1. Several mounting holes 21 corresponding to welding holes 11 are opened on floating plate 2. Several positioning posts 22 are fixedly connected to the periphery of mounting holes 21. A first stop block 23 is fixedly connected to the upper end of positioning posts 22.
[0037] Welding nozzle 3 is inserted into the mounting port 21. The upper circumference of welding nozzle 3 is slidably connected to positioning post 22. A first spring 4 is sleeved on the positioning post 22 at the upper end of welding nozzle 3.
[0038] Two guide posts 24 are fixedly connected to each end of the floating plate 2. The upper end of the guide post 24 is slidably connected to the positioning plate 1. Two sliders 5 are slidably connected to each guide post 24. A second spring 6 is sleeved on the guide post 24 between the two sliders 5. Two extrusion plates 7 are arranged between the two guide posts 24 at the same end of the floating plate 2. Two connecting rods 71 are rotatably connected to the side of the extrusion plate 7. The other end of the connecting rod 71 is rotatably connected to the corresponding slider 5. A third spring 8 is fixedly connected between the two extrusion plates 7.
[0039] In use, the floating welding nozzle of this utility model is installed on the welding equipment and positioned above the battery module lifting mechanism. The lifting mechanism lifts the battery module upward, and the battery module first contacts the welding nozzle 3. As the lifting mechanism continues to lift the battery module upward, the welding nozzle 3 moves upward as well. At this time, the first spring 4 is compressed and contracts. Simultaneously, since the positioning plate 1 is not fixed, the floating plate 2 will also rise slightly, reducing the distance between the positioning plate 1 and the floating plate 2. The distance between the two sliders 5 on the same guide post 24 also decreases accordingly, and the second spring 6 is compressed and contracts. At the same time, under the action of the connecting rod 71, the two pressing plates 7 move towards each other, and the third spring 8 is compressed and contracts. Throughout the process, the welding nozzle 3 presses the battery module to achieve floating buffering, avoiding the phenomenon of indentation marks on the surface of the battery tabs caused by direct hard pressure, reducing the probability of product appearance damage, and improving the product qualification rate. The welding port 11 guides the welding gun.
[0040] In the first embodiment of this utility model, fixing plates 9 are fixedly connected to both ends of the positioning plate 1, and the fixing plates 9 have connecting holes 91. The fixing plates 9 are used to connect with welding equipment and can be fixed to the welding equipment by bolts passing through the connecting holes 91.
[0041] In the first embodiment of this utility model, a second stop 26 is fixedly connected to the top of the guide post 24 to prevent the guide post 24 from detaching from the positioning plate 1.
[0042] In the first embodiment of this utility model, the height of the positioning post 22 is less than the minimum distance between the positioning plate 1 and the floating plate 2. When the two sliders 5 on the same guide post 24 move towards each other to the minimum distance, the distance between the positioning plate 1 and the floating plate 2 is at its minimum, thus avoiding motion interference caused by the excessive height of the positioning post 22.
[0043] In the first embodiment of this invention, the height of the extrusion plate 7 is less than the minimum distance between the positioning plate 1 and the floating plate 2. When the two sliders 5 on the same guide post 24 move towards each other to the minimum distance, the distance between the positioning plate 1 and the floating plate 2 is at its minimum, thus avoiding motion interference caused by the excessive height of the extrusion plate 7.
[0044] In the first embodiment of this utility model, two extrusion plates 7 located at the same end of the floating plate 2 are provided with through holes arranged along the same axis. A limit rod 10 is provided between the two extrusion plates 7, and the two ends of the limit rod 10 are slidably connected to the through holes. A third stop 101 is fixedly connected to the ends of the limit rod 10. When the two extrusion plates 7 move towards each other, under the restriction of the limit rod 10, it is ensured that the two extrusion plates 7 can only move along the limit rod 10, avoiding misalignment during the movement of the two extrusion plates 7 towards each other, and preventing the third spring 8 from bending.
[0045] In the first embodiment of this utility model, a connecting plate 31 is fixedly connected to the upper end of the welding nozzle 3, and the connecting plate 31 is slidably connected to the positioning post 22. The connecting plate 31 is provided to connect the welding nozzle 3 and the positioning post 22, so that the welding nozzle 3 can slide along the positioning post 22, and in conjunction with the first spring 4, floating buffering is achieved.
[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," 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, the 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.
[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims of this utility model.
Claims
1. A floating welding tip characterized by, The utility model relates to a welding device, including: Positioning plate (1), a plurality of evenly distributed welding interfaces (11) are set up on the positioning plate (1); Floating plate (2), the floating plate (2) is located below the positioning plate (1), a plurality of installation openings (21) corresponding with welding interface (11) are set up on the floating plate (2), the peripheral side of installation opening (21) is fixedly connected with a plurality of positioning columns (22), the upper end of positioning column (22) is fixedly connected with first stopper (23); Welding nozzle (3), the welding nozzle (3) is set in installation opening (21), and the upper end peripheral side of welding nozzle (3) is slidably connected with positioning column (22), and the positioning column (22) of welding nozzle (3) upper end is covered with first spring (4); Two guide columns (24) are fixedly connected at each end of floating plate (2), the upper end of guide column (24) is slidably connected with positioning plate (1), and two sliding blocks (5) are slidably connected on each guide column (24), and the guide column (24) between two sliding blocks (5) is covered with second spring (6), two extrusion plates (7) are set between the two guide columns (24) at the same end of floating plate (2), the side of extrusion plate (7) is rotatably connected with two connecting rods (71), the other end of connecting rod (71) is rotatably connected with corresponding sliding block (5), and third spring (8) is fixedly connected between two extrusion plates (7).
2. A floating welding nozzle according to claim 1, wherein The both ends of positioning plate (1) are fixedly connected with fixed plate (9), and connecting hole (91) is set up on the fixed plate (9).
3. A floating welding nozzle according to claim 2, wherein The top of guide column (24) is fixedly connected with second stopper (26).
4. A floating welding nozzle according to claim 3, wherein The height of positioning column (22) is less than the minimum spacing between positioning plate (1) and floating plate (2).
5. A floating welding nozzle according to claim 4, wherein The height of extrusion plate (7) is less than the minimum spacing between positioning plate (1) and floating plate (2).
6. A floating welding nozzle according to claim 1 wherein, The coaxial through holes are set up on the two extrusion plates (7) at the same end of floating plate (2), and limiting rod (10) is set between the two extrusion plates (7), the both ends of limiting rod (10) are slidably connected with the through holes, and third stopper (101) is fixedly connected on the end portion of the both ends of limiting rod (10).
7. A floating welding nozzle as defined in claim 1, wherein The upper end of welding nozzle (3) is fixedly connected with connecting plate (31), and connecting plate (31) is slidably connected with positioning column (22).