A positioning device for welding an electrode and a holder
By setting up a battery cell and bracket placement platform in the battery cell and bracket welding positioning device, and combining it with various positioning components, the problem of bracket position offset was solved, the precise positioning of the battery cell and bracket was achieved, and the welding quality was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU DESAY BATTERY
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-05
AI Technical Summary
Existing welding positioning devices suffer from bracket displacement during welding due to the mobility of the bracket, which makes it impossible to guarantee the accuracy of welding positioning.
By setting up fixed cell placement platforms and bracket placement platforms, and combining them with first and second positioning components, the cells and brackets are precisely positioned in the horizontal and vertical directions, including the coordinated use of structures such as limit posts, abutment parts, positioning blocks and buckle components.
This improved the accuracy of cell and bracket welding positioning, thus enhancing welding operations and product quality.
Smart Images
Figure CN224322594U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of battery manufacturing technology, specifically relating to a positioning device for welding battery cells and brackets. Background Technology
[0002] During battery production, to meet assembly requirements, brackets need to be welded to specific locations on the battery cell, such as the side or corner of the cell. Welding is typically done by spot welding. Before spot welding, the cell and bracket need to be precisely positioned so that the bracket is accurately placed at the target welding location to ensure the precision of the welding operation. Existing welding positioning devices usually use a fixture to first fix the cell, and then a bracket transfer mechanism moves the bracket to the target welding position on the cell to achieve welding positioning between the cell and the bracket. Due to the mobility of the bracket, its position can easily shift during welding, resulting in instability and making it impossible to guarantee the accuracy of welding positioning. Utility Model Content
[0003] To address the shortcomings of the prior art, this utility model provides a positioning device for welding battery cells and brackets. By setting up fixed battery cell placement platforms and bracket placement platforms, the battery cells and brackets are initially positioned. Then, through the cooperation of a first bracket positioning component and a second bracket positioning component, the bracket is positioned horizontally and vertically. Similarly, through the cooperation of a first battery cell positioning component and a second battery cell positioning component, the battery cells are positioned horizontally and vertically, effectively improving the accuracy of battery cell and bracket welding positioning.
[0004] The technical effects to be achieved by this utility model are realized through the following technical aspects:
[0005] This utility model provides a positioning device for welding battery cells to brackets, including a first positioning seat and a second positioning seat that can be detachably connected;
[0006] The first positioning base is provided with a cell placement platform and a bracket placement platform adjacent to each other. A first cell positioning component is provided on the outer periphery of the cell placement platform, and a first bracket positioning component is provided on the bracket placement platform. The first cell positioning component is used for positioning the cell in the horizontal direction, and the first bracket positioning component is used for positioning the bracket in the horizontal direction.
[0007] The second positioning base is provided with a second cell positioning component and a second bracket positioning component. The second cell positioning component is located above the cell placement platform and is used for positioning the cell in the vertical direction. The second bracket positioning component is located above the bracket placement platform and is used for positioning the bracket in the vertical direction.
[0008] As a further description of the technical solution of this utility model, the first bracket positioning component includes a limiting post disposed on the bracket placement platform, the limiting post being used to be embedded in the mounting hole of the bracket.
[0009] As a further description of the technical solution of this utility model, the first bracket positioning assembly also includes an abutment portion formed on the bracket placement platform, the abutment portion being used to abut against the outer side wall of the bracket.
[0010] As a further description of the technical solution of this utility model, the second bracket positioning assembly includes a first positioning post and a first spring. The first positioning post is connected to the second positioning seat through the first spring, and the first positioning post is used to abut against the outer periphery of the mounting hole of the bracket.
[0011] As a further description of the technical solution of this utility model, the first cell positioning assembly includes a second spring, and limiting blocks and pushing members respectively disposed on opposite sides of the cell placement platform. The pushing members are connected to the first positioning seat through the second spring.
[0012] As a further description of the technical solution of this utility model, the first cell positioning assembly also includes a locking member, which is rotatably connected to the pushing member. A locking groove is provided on one side of the first positioning seat located on the pushing member, and the locking groove is used to engage the locking member.
[0013] As a further description of the technical solution of this utility model, the second cell positioning assembly includes a positioning block and a third spring, wherein the positioning block is connected to the second positioning seat through the third spring.
[0014] As a further description of the technical solution of this utility model, the positioning device for welding the battery cell to the bracket also includes a snap-fit assembly, and the first positioning seat and the second positioning seat are connected through the snap-fit assembly;
[0015] The latching assembly includes a first latching member, a second latching member, and a fourth spring. The first latching member is connected to the first positioning seat via the fourth spring, and the second latching member is fixedly connected to the second positioning seat. The first latching member and the second latching member are engaged and connected.
[0016] As a further description of the technical solution of this utility model, the positioning device for welding the battery cell to the bracket also includes a connecting positioning component. The connecting positioning component includes a positioning groove formed on the first positioning seat and a second positioning post disposed on the second positioning seat, wherein the second positioning post is inserted into the positioning groove.
[0017] As a further description of the technical solution of this utility model, the connecting positioning assembly also includes a fifth spring, and the second positioning post is connected to the second positioning seat through the fifth spring.
[0018] In summary, this utility model has at least the following advantages:
[0019] The positioning device for welding battery cells and brackets provided by this utility model, by setting up fixed battery cell placement platforms and bracket placement platforms, allows for initial positioning of the battery cells and brackets when they are placed on the platforms respectively. Then, through the cooperation of a first bracket positioning component and a second bracket positioning component, the bracket is positioned horizontally and vertically, and through the cooperation of a first battery cell positioning component and a second battery cell positioning component, the battery cells are positioned horizontally and vertically. This improves the accuracy of battery cell and bracket welding positioning, which is beneficial to improving welding operation quality and product quality. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the positioning device for welding the battery cell and the bracket in Embodiment 1 of this utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the first bracket positioning component in Embodiment 2 of this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the bracket in Embodiment 2 of this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the second bracket positioning assembly in Embodiment 2 of this utility model;
[0024] Figure 5 This is a schematic diagram of the structure of the first cell positioning assembly in Embodiment 2 of this utility model;
[0025] Figure 6 This is a schematic diagram of the structure of the second cell positioning assembly in Embodiment 2 of this utility model;
[0026] Figure 7 This is a structural schematic diagram of the buckle assembly and the connection positioning assembly of Embodiment 3 of this utility model;
[0027] Figure 8 This is a schematic diagram of the buckle assembly of Embodiment 3 of this utility model;
[0028] Figure 9 This is a schematic diagram of the structure of the second positioning post and the fifth spring in Embodiment 3 of this utility model.
[0029] Marked in the image:
[0030] 1. First positioning seat; 11. Cell placement platform; 12. Bracket placement platform; 13. Locking groove;
[0031] 2. Second positioning seat;
[0032] 3. First cell positioning assembly; 31. Second spring; 32. Limiting block; 33. Pushing component; 34. Locking component;
[0033] 4. First bracket positioning assembly; 41. Limiting post; 42. Abutment part;
[0034] 5. Second cell positioning assembly; 51. Positioning block; 52. Third spring;
[0035] 6. Second bracket positioning assembly; 61. First positioning post; 62. First spring;
[0036] 7. Buckle assembly; 71. First buckle; 72. Second buckle; 73. Fourth spring;
[0037] 8. Connecting positioning assembly; 81. Positioning groove; 82. Second positioning post; 83. Fifth spring;
[0038] 100. Bracket; 101. Inner wall; 102. Outer wall; 103. Extension; 104. Mounting hole. Detailed Implementation
[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.
[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0041] Example 1
[0042] refer to Figure 1The positioning device for welding battery cells and brackets provided in this embodiment includes a first positioning seat 1 and a second positioning seat 2 that are detachably connected. During welding positioning, the second positioning seat 2 is pressed and connected above the first positioning seat 1. A battery cell placement platform 11 and a bracket placement platform 12 are adjacently arranged on the first positioning seat 1. A first battery cell positioning component 3 is arranged on the outer periphery of the battery cell placement platform 11, and a first bracket positioning component 4 is arranged on the bracket placement platform 12. The first battery cell positioning component 3 is used for positioning the battery cell in the horizontal direction, and the first bracket positioning component 4 is used for positioning the bracket in the horizontal direction. A second battery cell positioning component 5 and a second bracket positioning component 6 are arranged on the second positioning seat 2. The second battery cell positioning component 5 is located above the battery cell placement platform 11 and is used for positioning the battery cell in the vertical direction, and the second bracket positioning component 6 is located above the bracket placement platform 12 and is used for positioning the bracket in the vertical direction.
[0043] During positioning, the bracket is first placed on the bracket placement platform 12, which confines the bracket within the welding operation area, thus achieving initial positioning. Then, the first bracket positioning component 4 positions the bracket horizontally. Next, the battery cell is placed on the battery cell placement platform 11, which confines the battery cell within the welding operation area, also achieving initial positioning. Then, the first battery cell positioning component 3 positions the battery cell horizontally. The second positioning seat 2 is then pressed and connected above the first positioning seat 1. At this point, the second bracket positioning component 6 positions the bracket vertically, and the second battery cell positioning component 5 positions the battery cell vertically. After positioning, the bracket is fixedly attached to the target welding position on the side wall of the battery cell, and the external welding mechanism can perform welding operations on the bracket and the battery cell.
[0044] The positioning device for welding the battery cell and the bracket in this embodiment uses fixed battery cell and bracket placement platforms to initially position the battery cell and bracket when they are placed on these platforms. Then, through the cooperation of a first bracket positioning component and a second bracket positioning component, the bracket is positioned horizontally and vertically. Similarly, through the cooperation of a first battery cell positioning component and a second battery cell positioning component, the battery cell is positioned horizontally and vertically. This improves the accuracy of the battery cell and bracket welding positioning, which is beneficial for improving the quality of the welding operation and the overall product quality.
[0045] Example 2
[0046] As a further optimization of Example 1, refer to Figures 2 to 6 The first bracket positioning assembly 4 includes a limiting post 41 disposed on the bracket placement platform 12 and an abutment portion 42 formed on the bracket placement platform 12, wherein the limiting post 41 is located above and to the side of the abutment portion 42. The bracket 100 of this embodiment is as follows... Figure 3As shown, the bracket 100 is L-shaped, and an inner sidewall 101 and an outer sidewall 102 are formed on the bracket 100 with opposite positions. The inner sidewall 101 is used to contact the battery cell, while the outer sidewall 102 is exposed to the outside. One side of the bracket 100 extends outward in a direction perpendicular to the inner sidewall 101 and the outer sidewall 102 to form an extension portion 103. A mounting hole 104 is provided on the extension portion 103. A limiting post 41 is used to be embedded in the mounting hole 104, and an abutment portion 42 is used to abut against the outer sidewall 102.
[0047] It should be noted that in this embodiment, the height of the limiting post 41 is lower than the thickness of the extension 103. The limiting post 41 only embeds into the mounting hole 104 to provide a limiting function, and does not protrude from the mounting hole 104. The shape of the abutment part 42 matches the shape of the outer wall 102, and is also L-shaped. The abutment part 42 only abuts against the non-welded parts on the outer wall 102, and will not interfere with the welding operation between the bracket 100 and the battery cell. During welding positioning, by fitting the mounting hole 104 into the limiting post 41, the horizontal movement of the bracket 100 can be restricted. By abutting the outer wall 102 against the abutment part 42, the horizontal position of the bracket 100 can be further prevented from shifting, while keeping the bracket 100 in the correct target welding position, thereby achieving precise horizontal positioning of the bracket 100.
[0048] It is understood that, since the bracket 100 in this embodiment is L-shaped, the bracket 100 will be welded to the end corner of the battery cell. Therefore, the bracket placement platform 12 in this embodiment will also be placed at the end corner of the battery cell placement platform 11.
[0049] The second bracket positioning assembly 6 includes a first positioning post 61 and a first spring 62 arranged vertically. The first positioning post 61 is connected to the second positioning seat 2 via the first spring 62. The first positioning post 61 is used to abut against the outer periphery of the mounting hole 104 of the bracket 100. It is understood that when the second positioning seat 2 is pressed and connected above the first positioning seat 1, the first positioning post 61 will abut against the outer periphery of the mounting hole 104. Due to the compressive force of the second positioning seat 2, the first spring 62 will apply pressure to the first positioning post 61, causing the first positioning post 61 to press against the outer periphery of the mounting hole 104. This restricts the vertical movement of the bracket 100, thereby achieving vertical positioning of the bracket 100.
[0050] The first cell positioning assembly 3 includes a second spring 31 arranged horizontally, and limiting blocks 32 and pushing members 33 respectively disposed on opposite sides of the cell placement platform 11. The pushing members 33 are connected to the first positioning seat 1 via the second spring 31. During positioning, the second spring 31 exerts a pushing force on the pushing members 33, causing the pushing members 33 to push the cell against the limiting blocks 32, thereby restricting the movement of the cell in the horizontal direction and achieving horizontal positioning of the cell.
[0051] In some embodiments, the first cell positioning assembly 3 further includes a locking member 34, which is rotatably connected to the pushing member 33 via a rotating connecting shaft. A locking groove 13 is provided on one side of the pushing member 33 on the first positioning seat 1, and the locking groove 13 is used to engage the locking member 34. The locking member 34 includes a first end and a second end located on both sides of the rotating connecting shaft. In its natural state, the first end is horizontal and can be engaged in the locking groove 13. When the second end is pressed by an external force, the first end will disengage from the locking groove 13. By providing the locking member 34, it can be engaged in the locking groove 13 before the cell is placed on the cell placement platform 11 to restrict the movement of the pushing member 33 and prevent the pushing member 33 from obstructing the placement of the cell. After the cell is placed, the locking member 34 is disengaged from the locking groove 13, allowing the pushing member 33 to push the cell under the action of the second spring 31.
[0052] The second cell positioning assembly 5 includes a positioning block 51 and a third spring 52 arranged vertically. The positioning block 51 is connected to the second positioning seat 2 via the third spring 52. When the second positioning seat 2 is pressed and connected above the first positioning seat 1, the third spring 52 will be subjected to the squeezing force of the second positioning seat 2 and will exert a force on the positioning block 51, causing the positioning block 51 to press against the upper surface of the cell, thereby restricting the movement of the cell in the vertical direction and realizing the vertical positioning of the cell.
[0053] In some implementations, a silicone pad can be provided at the bottom of the positioning block 51 to buffer the pressure applied to the positioning block 51 and prevent the battery cell from being damaged.
[0054] Example 3
[0055] As a further optimization of Example 2, refer to Figures 7 to 9 The positioning device for welding the battery cell to the bracket also includes a snap-fit assembly 7, through which the first positioning seat 1 and the second positioning seat 2 are connected. The snap-fit assembly 7 includes a first snap-fit member 71, a second snap-fit member 72, and a fourth spring 73 arranged in the horizontal direction. The first snap-fit member 71 is connected to the first positioning seat 1 through the fourth spring 73, and the second snap-fit member 72 is fixedly connected to the second positioning seat 2. The first snap-fit member 71 and the second snap-fit member 72 are engaged and connected.
[0056] Both the end of the first latching member 71 and the end of the second latching member 72 have hook structures. In their natural state, the first latching member 71, connected to the fourth spring 73, is extended. During the pressing process between the first positioning seat 1 and the second positioning seat 2, the second latching member 72 will squeeze the first latching member 71, causing the first latching member 71 to temporarily retract. When the first positioning seat 1 and the second positioning seat 2 are pressed into place, the first latching member 71 will extend under the action of the fourth spring 73, and the hook structure at the end of the first latching member 71 will engage with the hook structure at the end of the second latching member 72. When it is necessary to separate the first positioning seat 1 and the second positioning seat 2, simply press the first latching member 71 horizontally to disengage it from the second latching member 72, thereby completing the disassembly of the first positioning seat 1 and the second positioning seat 2. The latching assembly 7 has a simple structure and is easy to operate.
[0057] In some embodiments, the positioning device for welding the battery cell to the bracket further includes a connecting positioning component 8 for positioning when the first positioning seat 1 and the second positioning seat 2 are connected, thereby improving the accuracy and efficiency of the connection between the first positioning seat 1 and the second positioning seat 2. The connecting positioning component 8 includes a positioning groove 81 formed on the first positioning seat 1 and a second positioning post 82 disposed on the second positioning seat 2, with the second positioning post 82 inserted into the positioning groove 81. Two positioning grooves 81 and two positioning posts 82 can be provided, thereby quickly and accurately determining the relative position between the first positioning seat 1 and the second positioning seat 2, achieving a fast and accurate connection between the first positioning seat 1 and the second positioning seat 2.
[0058] In some embodiments, the connecting positioning assembly 8 further includes a fifth spring 83 arranged in the vertical direction. The second positioning post 82 is connected to the second positioning seat 2 through the fifth spring 83, thereby generating a certain floating force between the first positioning seat 1 and the second positioning seat 2, which can adapt to different connection gap requirements.
[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction 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.
[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0061] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0062] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.
Claims
1. A positioning device for welding a battery cell to a support, characterized in that, It includes a detachably connected first positioning seat (1) and second positioning seat (2); The first positioning base (1) is provided with a cell placement platform (11) and a bracket placement platform (12) adjacent to each other. The cell placement platform (11) is provided with a first cell positioning component (3) on its outer periphery. The bracket placement platform (12) is provided with a first bracket positioning component (4). The first cell positioning component (3) is used for positioning the cell in the horizontal direction. The first bracket positioning component (4) is used for positioning the bracket in the horizontal direction. The second positioning seat (2) is provided with a second cell positioning component (5) and a second bracket positioning component (6). The second cell positioning component (5) is located above the cell placement platform (11) and is used for positioning the cell in the vertical direction. The second bracket positioning component (6) is located above the bracket placement platform (12) and is used for positioning the bracket in the vertical direction.
2. The positioning device for welding the battery cell and the bracket according to claim 1, characterized in that, The first bracket positioning assembly (4) includes a limiting post (41) disposed on the bracket placement platform (12), the limiting post (41) being used to be embedded in the mounting hole of the bracket.
3. The positioning device for welding the battery cell and the bracket according to claim 2, characterized in that, The first bracket positioning assembly (4) further includes an abutment portion (42) formed on the bracket placement platform (12), the abutment portion (42) being used to abut against the outer side wall of the bracket.
4. The positioning device for welding the battery cell and the bracket according to claim 1, characterized in that, The second bracket positioning assembly (6) includes a first positioning post (61) and a first spring (62). The first positioning post (61) is connected to the second positioning seat (2) through the first spring (62). The first positioning post (61) is used to abut against the outer periphery of the mounting hole of the bracket.
5. The positioning device for welding the battery cell and the bracket according to claim 1, characterized in that, The first cell positioning assembly (3) includes a second spring (31), and a limiting block (32) and a pushing member (33) respectively disposed on opposite sides of the cell placement platform (11). The pushing member (33) is connected to the first positioning seat (1) through the second spring (31).
6. The positioning device for welding the battery cell and the bracket according to claim 5, characterized in that, The first cell positioning assembly (3) further includes a locking member (34), which is rotatably connected to the push member (33). A locking groove (13) is provided on one side of the push member (33) on the first positioning seat (1), and the locking groove (13) is used to engage the locking member (34).
7. The positioning device for welding the battery cell to the bracket according to claim 1, characterized in that, The second cell positioning assembly (5) includes a positioning block (51) and a third spring (52), wherein the positioning block (51) is connected to the second positioning seat (2) via the third spring (52).
8. The positioning device for welding the battery cell and the bracket according to claim 1, characterized in that, It also includes a snap-fit assembly (7), through which the first positioning seat (1) and the second positioning seat (2) are connected; The latching assembly (7) includes a first latching member (71), a second latching member (72), and a fourth spring (73). The first latching member (71) is connected to the first positioning seat (1) through the fourth spring (73), and the second latching member (72) is fixedly connected to the second positioning seat (2). The first latching member (71) and the second latching member (72) are engaged and connected.
9. The positioning device for welding the battery cell and the bracket according to claim 8, characterized in that, It also includes a connecting positioning component (8), which includes a positioning groove (81) opened on the first positioning seat (1) and a second positioning post (82) disposed on the second positioning seat (2), the second positioning post (82) being inserted into the positioning groove (81).
10. The positioning device for welding the battery cell to the bracket according to claim 9, characterized in that, The connection positioning component (8) further includes a fifth spring (83), and the second positioning post (82) is connected to the second positioning seat (2) through the fifth spring (83).