Battery welding jig
By designing a battery welding fixture containing positioning columns, the problem of prone to deviation when manually positioning nickel sheets is solved, high-precision positioning of nickel sheet welding is achieved, and the quality of welding and assembly is improved.
Patent Information
- Application Number
- CN202422203763.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-06
AI Technical Summary
During battery welding, when manually putting nickel sheets into the fixture with tweezers or suction pens, it is easy to cause position deviation of nickel sheets, affecting welding accuracy and subsequent assembly quality.
A battery welding fixture is designed, including a base body, a battery compartment, a positioning column, a positive electrode and an negative electrode material row. The positive electrode and an negative electrode material row are aligned with the battery compartment through the positioning column to ensure the correct contact between the nickel plate and the battery.
Through the precise positioning of the positioning column, the positioning accuracy during nickel sheet welding is improved, the nickel sheet deviation is avoided, and the welding accuracy and subsequent assembly quality are ensured.
Smart Images
Figure CN223012211U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of battery manufacturing, and particularly to a battery welding jig. Background Art
[0002] The welding process of the positive and negative nickel sheets of a battery is a delicate and crucial process, which directly affects the performance, safety, and service life of the battery. In related technologies, when welding nickel sheets, the nickel sheets are placed on a material tray, and an operator needs to use tweezers or a suction pen to pick up a single nickel sheet, distinguish the direction, and then place the nickel sheet on a battery welding jig for welding.
[0003] However, when an operator manually uses tweezers or a suction pen to place nickel sheets into the jig for welding in related technologies, the placement position of the nickel sheets is prone to deviation, which easily results in failure to meet the accuracy requirements when welding the nickel sheets and is likely to cause poor assembly during subsequent processing. Utility Model Content
[0004] To solve or partially solve the problems existing in related technologies, this application provides a battery welding jig that can improve the positioning accuracy during nickel sheet welding.
[0005] This application provides a battery welding jig, including: a base body, on which a battery compartment and positioning posts are provided, and the battery compartment and the positioning posts are located on the same side of the base body; a positive electrode material row, including a first positioning plate and positive nickel sheets provided on the first positioning plate, and a first positioning hole is provided on the first positioning plate; a negative electrode material row, including a second positioning plate and negative nickel sheets provided on the second positioning plate, and a second positioning hole is provided on the second positioning plate; wherein, the battery to be welded is placed in the battery compartment, the positive electrode material row and the negative electrode material row are relatively located on both sides of the battery, the first positioning hole and the second positioning hole are both sleeved on the positioning posts, the positive nickel sheets are in contact with the positive electrode of the battery, and the negative nickel sheets are in contact with the negative electrode of the battery.
[0006] The technical solution provided by this application may include the following beneficial effects: By placing the battery to be welded in the battery compartment, the positive electrode material row and the negative electrode material row are relatively located on both sides of the battery, the first positioning hole and the second positioning hole are both sleeved on the positioning posts, and the positioning posts simultaneously position the positive electrode material row and the negative electrode material row, ensuring that the positive nickel sheets are in contact with the positive electrode of the battery and the negative nickel sheets are in contact with the negative electrode of the battery, thereby preventing the nickel sheets on the material row from deviating. Compared with the method of manually positioning nickel sheets, positioning by the positioning posts is more accurate, thus improving the positioning accuracy during nickel sheet welding, and both the positive electrode material row and the negative electrode material row are positioned by the positioning posts, which can ensure the positioning accuracy of the relative positions of the positive nickel sheets and the negative nickel sheets.
[0007] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] By describing the exemplary embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other objects, features, and advantages of the present application will become more apparent. Among them, in the exemplary embodiments of the present application, the same reference numerals generally represent the same components.
[0009] Figure 1 is a schematic structural diagram of a battery welding jig shown in an embodiment of the present application;
[0010] Figure 2 is another schematic structural diagram of a battery welding jig shown in an embodiment of the present application;
[0011] Figure 3 is a side view of a battery welding jig shown in an embodiment of the present application;
[0012] Figure 3a is Figure 3 a partial enlarged view at A;
[0013] Figure 4 is a schematic structural diagram of a base shown in an embodiment of the present application;
[0014] Figure 5 is a schematic structural diagram of a positive electrode material row shown in an embodiment of the present application;
[0015] Figure 6 is a side view of a positive electrode material row shown in an embodiment of the present application;
[0016] Figure 7 is a schematic structural diagram of a negative electrode material row shown in an embodiment of the present application.
[0017] Reference Numerals:
[0018] 1 - Base, 11 - Battery compartment, 12 - Positioning post, 13 - Accommodating groove, 14 - Limiting groove, 15 - Avoidance groove, 2 - Positive electrode material row, 21 - First positioning plate, 22 - Positive electrode nickel sheet, 23 - First positioning hole, 24 - Connecting strip, 3 - Negative electrode material row, 31 - Second positioning plate, 32 - Negative electrode nickel sheet, 33 - Second positioning hole, 4 - Battery, 5 - Insulating paper. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present application will be more thorough and complete, and the scope of the present application can be fully conveyed to those skilled in the art.
[0020] It should be understood that although the terms "first", "second", "third", etc. may be used in the present application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.
[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.
[0022] Unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0023] In the related art, when manually using tweezers or a suction pen to place a nickel sheet into a jig for welding, the position where the nickel sheet is placed is prone to deviation, which easily causes the welding of the nickel sheet to fail to meet the accuracy requirements and is likely to lead to poor assembly during subsequent processing.
[0024] In view of the above problems, an embodiment of the present application provides a battery welding jig, which can improve the positioning accuracy during nickel sheet welding.
[0025] The technical solutions of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0026] AsFigures 1 to 7 As shown, an embodiment of the present application provides a battery welding jig, which includes a base body 1, a positive electrode material row 2 and a negative electrode material row 3. A battery compartment 11 and positioning posts 12 are provided on the base body 1. The battery compartment 11 and the positioning posts 12 are located on the same side of the base body 1. As Figure 1 and Figure 4 shown, the battery compartment 11 and the positioning posts 12 are located on the upper side of the base body 1.
[0027] The positive electrode material row 2 includes a first positioning plate 21 and a positive electrode nickel sheet 22 provided on the first positioning plate 21. A first positioning hole 23 is provided on the first positioning plate 21. The positive electrode material row 2 can be an integrally formed structure. The negative electrode material row 3 includes a second positioning plate 31 and a negative electrode nickel sheet 32 provided on the second positioning plate 31. A second positioning hole 33 is provided on the second positioning plate 31. Among them, the battery 4 to be welded is placed in the battery compartment 11. The positive electrode material row 2 and the negative electrode material row 3 are located on opposite sides of the battery 4, that is, on the upper and lower sides of the battery 4. Both the first positioning hole 23 and the second positioning hole 33 are sleeved on the positioning post 12. The positive electrode nickel sheet 22 contacts the positive electrode of the battery 4, and the negative electrode nickel sheet 32 contacts the negative electrode of the battery 4.
[0028] Based on the above solution, the battery 4 to be welded is placed in the battery compartment 11. The positive electrode material row 2 and the negative electrode material row 3 are located on opposite sides of the battery 4. Both the first positioning hole 23 and the second positioning hole 33 are sleeved on the positioning post 12. The positioning post 12 positions both the positive electrode material row 2 and the negative electrode material row 3 at the same time, ensuring that the positive electrode nickel sheet 22 contacts the positive electrode of the battery 4 and the negative electrode nickel sheet 32 contacts the negative electrode of the battery 4, thereby preventing the nickel sheets on the material row from deviating. Compared with the method of manually positioning the nickel sheets, positioning by the positioning post 12 is more accurate, thus improving the positioning accuracy during nickel sheet welding. Moreover, both the positive electrode material row 2 and the negative electrode material row 3 are positioned by the positioning post 12, which can ensure the positioning accuracy of the relative positions of the positive electrode nickel sheet 22 and the negative electrode nickel sheet 32. For example, when it is required to coaxially arrange the positive electrode nickel sheet 22 and the negative electrode nickel sheet 32 on the battery 4, the positioning post 12 can ensure that the relative positions of the positive electrode nickel sheet 22 and the negative electrode nickel sheet 32 remain coaxial.
[0029] Specifically, when the battery 4 is located in the battery compartment 11, the positive electrode of the battery 4 can face upward and the negative electrode can face downward. First, position the negative electrode material row 3 on the positioning post 12 so that the negative electrode nickel sheet 32 is located at the bottom of the battery compartment 11. Then place the battery 4 in the battery compartment 11 and above the negative electrode material row 3. Next, position the positive electrode material row 2 on the positioning post 12. During welding, the positive electrode nickel sheet 22 can be welded to the positive electrode of the battery first, and then the battery welding jig can be turned over to weld the negative electrode nickel sheet 32 to the negative electrode of the battery. The battery 4 can be a cylindrical battery. The shape of the battery compartment 11 matches the shape of the battery 4 to restrict the random movement of the battery 4. The positioning post 12 can be a cylindrical or prismatic structure, and the shape of the positioning hole matches the shape of the positioning post 12.
[0030] In some embodiments, as Figures 1 to 7 shown, a plurality of battery compartments 11 are provided on the substrate 1 at intervals, a plurality of positive nickel plates 22 are provided on the first positioning plate 21 at intervals, and a plurality of negative nickel plates 32 are provided on the second positioning plate 31 at intervals. The plurality of positive nickel plates 22 and the plurality of negative nickel plates 32 are arranged in one-to-one correspondence with the plurality of battery compartments 11.
[0031] Specifically, a plurality of batteries 4 can be placed in the plurality of battery compartments 11 at one time, and the plurality of positive nickel plates 22 and the plurality of negative nickel plates 32 are arranged in one-to-one correspondence with the plurality of battery compartments 11, so that a plurality of batteries 4 can be welded at one time, improving the production efficiency compared with the method of manually placing a single nickel plate for welding each time.
[0032] In some embodiments, a plurality of positioning posts 12 are provided on the substrate 1 at intervals, a plurality of first positioning holes 23 are provided on the first positioning plate 21 at intervals, and a plurality of second positioning holes 33 are provided on the second positioning plate 31 at intervals. The plurality of first positioning holes 23 and the plurality of second positioning holes 33 are arranged in one-to-one correspondence with the plurality of positioning posts 12. Through the cooperation of the plurality of positioning posts 12 with the plurality of first positioning holes 23 and the plurality of second positioning holes 33, the first positioning plate 21 and the second positioning plate 31 can be accurately positioned.
[0033] In the embodiments of the present application, a robotic arm can be used to pick up the positive electrode material row 2, the negative electrode material row 3, and the battery 4, and laser welding of a plurality of batteries 4 can be performed simultaneously, enabling automated production.
[0034] In some embodiments, as Figure 4 shown, the substrate 1 is provided with a receiving groove 13 for receiving the negative electrode material row 3, and the receiving groove 13 and the battery compartment 11 are located on the same side of the substrate 1. Specifically, when the battery 4 is placed, the positive electrode faces upward and the negative electrode faces downward. Before placing the battery 4, the negative electrode material row 3 is first placed in the receiving groove 13 for positioning the negative electrode material row 3.
[0035] In some embodiments, the bottom of the receiving groove 13 and the bottom of the battery compartment 11 are at different heights, and the height of the bottom of the battery compartment 11 is higher than the height of the bottom of the receiving groove 13. Specifically, after the negative electrode material row 3 is placed in the receiving groove 13, the height of the negative electrode material row 3 does not protrude from the bottom of the battery compartment 11, so that the bottom of the battery 4 can contact the bottom of the battery compartment 11 to stably limit the battery 4.
[0036] In some embodiments, as Figure 3 、 Figure 3a and Figure 4As shown, the side wall of the battery compartment 11 is provided with a limiting groove 14 for positioning the insulating paper 5 on the battery 4. Specifically, the insulating paper 5 is attached to the positive electrode side of the battery 4, that is, the upper end face of the battery 4, to prevent the positive nickel sheet 22 from contacting the battery 4 housing and eliminate the short-circuit phenomenon. A part of the insulating paper 5 extends to the side wall of the battery 4, and the insulating paper 5 is positioned by the limiting groove 14, so as to more accurately position the battery 4, ensure the accurate angle during the welding of the battery 4, and prevent the battery 4 from rotating in the battery compartment 11.
[0037] In some embodiments, as Figures 1 to 4 shown, the base body 1 is provided with an avoidance groove 15, and the avoidance groove 15 penetrates the base body 1 from the bottom of the battery compartment 11. Specifically, the purpose of setting the avoidance groove 15 is to enable the welding equipment to weld the negative nickel sheet 32 from the side of the base body 1 facing away from the battery 4. After welding the positive nickel sheet 22 to the positive electrode post at the upper end of the battery 4, the battery welding jig can be rotated 180 degrees as a whole, so that the lower end of the base body 1 faces upward, and the welding equipment welds the negative nickel sheet 32 to the negative electrode at the bottom end of the battery 4 through the avoidance groove 15. In this way, the positive and negative nickel sheets of the battery 4 can be welded by one jig, thus improving the welding production efficiency.
[0038] In some embodiments, a pre-cutting structure is provided at the connection between the positive nickel sheet 22 and the first positioning plate 21, and at the connection between the negative nickel sheet 32 and the second positioning plate 31. Specifically, the pre-cutting structure is a cutting groove. Optionally, the cutting groove extends along the connection between the positive nickel sheet 22 and the first positioning plate 21 or the connection between the negative nickel sheet 32 and the second positioning plate 31, so that the thickness of the above connection is thinned. In this way, after welding the positive nickel sheet 22 and the negative nickel sheet 32, waste can be discharged by bending, and the unnecessary parts can be removed, that is, by bending the first positioning plate 21 and the second positioning plate 31, separating the first positioning plate 21 from the positive nickel sheet 22 and separating the second positioning plate 31 from the negative nickel sheet 32. The operation is simple and the processing efficiency is high.
[0039] In some embodiments, the cutting grooves are located on both sides of the above connection, so that the width of the connection is reduced, that is, the connection area between the nickel sheet and the positioning plate is reduced, so as to facilitate the subsequent bending to separate the positioning plate and the nickel sheet.
[0040] In some embodiments, the upper end of the battery compartment 11 has an opening for taking and placing the battery 4, the negative material row 3 is located at the bottom end of the battery compartment 11, and the positive material row 2 is located at the upper end of the battery compartment 11. Specifically, during welding, first place the negative material row 3 at the bottom end of the battery compartment 11, then place the battery 4 in the battery compartment 11, and then place the positive material row 2 at the positive electrode at the upper end of the battery 4 through the positioning post 12.
[0041] In some embodiments, as Figure 5 and Figure 6As shown, the positive electrode material row 2 is provided with a connecting strip 24 at a certain angle to the first positioning plate 21. One end of the connecting strip 24 is connected to the first positioning plate 21, and the other end of the connecting strip 24 is connected to the positive electrode nickel sheet 22, so that the positive electrode nickel sheet 22 and the first positioning plate 21 are located in different planes.
[0042] Specifically, during welding, the plane where the first positioning plate 21 is located is higher than the plane where the positive electrode nickel sheet 22 is located. In this way, when the positive electrode nickel sheet 22 contacts the positive electrode of the battery 4, the first positioning plate 21 is higher than the battery 4, avoiding touching the shell of the battery 4 and causing a short circuit. Among them, as Figure 6 shown, the connecting strip 24 is perpendicular to the first positioning plate 21 and the positive electrode nickel sheet 22, making the positive electrode material row 2 in a Z shape.
[0043] In some embodiments, the negative electrode material row 3 is also set in a Z shape similar to the positive electrode material row 2, which is convenient for welding and also for separating the nickel sheet and the positioning plate. When separating, bend the connection part between the nickel sheet and the connecting strip to separate the nickel sheet from the connecting strip.
[0044] In summary, the embodiment of the present application provides a battery welding jig. Align the second positioning hole 33 of the negative electrode material row 3 with the positioning post 12 and place it into the base body 1 for positioning; then place the battery 4 into the battery compartment 11 with the positive electrode of the battery 4 facing upward, and align the insulating paper 5 on the positive electrode side with the limiting groove 14; align the first positioning hole 23 of the positive electrode material row 2 with the positioning post 12 and place the positive electrode material row 2, so that the positive electrode nickel sheet 22 contacts the positive electrode of the battery 4; then place the battery welding jig into the laser welding equipment and fix it by the clamping jaws. First, weld the positive electrode nickel sheet 22, then flip the battery welding jig, and weld the negative electrode nickel sheet 32 through the avoidance groove 15; separate the positive electrode nickel sheet 22 from the first positioning plate 21, take out the battery 4 from the battery compartment 11, and then separate the negative electrode nickel sheet 32 from the second positioning plate 31.
[0045] The solution of the present application has been described in detail with reference to the accompanying drawings above. In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also know that the actions and modules involved in the specification are not necessarily essential to the present application. In addition, it can be understood that the steps in the method embodiments of the present application can be adjusted, combined, and deleted according to actual needs, and the modules in the device embodiments of the present application can be combined, divided, and deleted according to actual needs.
[0046] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is also not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.
Claims
1. A battery welding jig, characterized in that: include: A base body, wherein a battery compartment and a positioning column are provided on the base body, and the battery compartment and the positioning column are located on the same side of the base body; A positive electrode material row, comprising a first positioning plate and a positive electrode nickel sheet arranged on the first positioning plate, wherein the first positioning plate is provided with a first positioning hole; A negative electrode material row, comprising a second positioning plate and a negative electrode nickel sheet arranged on the second positioning plate, wherein the second positioning plate is provided with a second positioning hole; Among them, the battery to be welded is placed in the battery compartment, the positive electrode material row and the negative electrode material row are relatively located on both sides of the battery, the first positioning hole and the second positioning hole are both sleeved on the positioning column, the positive electrode nickel sheet contacts the positive electrode of the battery, and the negative electrode nickel sheet contacts the negative electrode of the battery.
2. The battery welding jig according to claim 1, characterized in that: A plurality of battery compartments are spaced apart on the base, a plurality of positive nickel sheets are spaced apart on the first positioning plate, a plurality of negative nickel sheets are spaced apart on the second positioning plate, and the plurality of positive nickel sheets and the plurality of negative nickel sheets are arranged one-to-one correspondingly to the plurality of battery compartments.
3. The battery welding jig according to claim 1, characterized in that: A plurality of the positioning posts are arranged at intervals on the base, a plurality of the first positioning holes are arranged at intervals on the first positioning plate, and a plurality of the second positioning holes are arranged at intervals on the second positioning plate. The plurality of the first positioning holes and the plurality of the second positioning holes are arranged in one-to-one correspondence with the plurality of the positioning posts.
4. The battery welding jig according to claim 1, characterized in that: The substrate is provided with a receiving groove for receiving the negative electrode material row, and the receiving groove and the battery compartment are located on the same side of the substrate.
5. The battery welding jig according to claim 4, characterized in that: The bottom of the receiving groove and the bottom of the battery compartment are located at different heights, and the height of the bottom of the battery compartment is higher than the height of the bottom of the receiving groove.
6. The battery welding jig according to claim 1, characterized in that: The side wall of the battery compartment is provided with a limiting groove for positioning the insulating paper on the battery.
7. The battery welding jig according to claim 1, characterized in that: The base is provided with an escape groove, and the escape groove runs through the base from the bottom of the battery compartment.
8. The battery welding jig according to claim 1, characterized in that: A pre-cutting structure is provided at the connection between the positive nickel sheet and the first positioning plate, and at the connection between the negative nickel sheet and the second positioning plate.
9. The battery welding jig according to claim 1, characterized in that: The upper end of the battery compartment has an opening for taking in and putting out the battery, the negative electrode material row is located at the bottom end of the battery compartment, and the positive electrode material row is located at the upper end of the battery compartment.
10. The battery welding jig according to claim 9, characterized in that: The positive electrode material row is provided with a connecting strip which is at a certain angle to the first positioning plate, one end of the connecting strip is connected to the first positioning plate, and the other end of the connecting strip is connected to the positive electrode nickel sheet, so that the positive electrode nickel sheet and the first positioning plate are located in different planes.