A battery welding fixture

Abstract

The utility model relates to battery technical field, specifically provide a kind of battery welding fixture, including first clamping component and second clamping component, first clamping component includes the first datum and first clamping piece oppositely arranged along first clamping direction, first clamping piece can move along first clamping direction, and first datum is fixedly arranged;Second clamping component includes the second datum and second clamping piece oppositely arranged along second clamping direction, and second clamping piece can move along second clamping direction, and second datum is fixedly arranged;Wherein, first datum and first clamping piece include first clamping seat and first abutting piece;The first abutting piece of first datum is located between second datum and second clamping piece;First abutting piece includes two press-mounting components, and at least one press-mounting component in two press-mounting components is movably arranged in first clamping seat along second clamping direction.The utility model effectively improves the overall dimensional compatibility and clamping stability.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery welding fixture. Background Technology

[0002] With the rapid development of the new energy industry, prismatic batteries have been widely used due to their advantages such as high energy density, light weight, and large capacity. Furthermore, prismatic batteries can be customized to fit the specific dimensions of the product, and different models often differ in size. Conventional battery welding fixtures typically only accommodate one type of prismatic battery, resulting in poor compatibility. While some adjustable-size battery welding fixtures exist, they offer limited improvement in compatibility and suffer from poor clamping stability. Summary of the Invention

[0003] The battery welding fixture provided in this embodiment of the invention at least solves the problems of poor compatibility and clamping stability of conventional welding fixtures, and effectively improves the overall dimensional compatibility and clamping stability.

[0004] This utility model provides a battery welding fixture, including a first clamping assembly comprising a first reference member and a first clamping member disposed opposite to each other along a first clamping direction, the first clamping member being movable along the first clamping direction and the first reference member being fixedly disposed; a second clamping assembly comprising a second reference member and a second clamping member disposed opposite to each other along a second clamping direction, the second clamping member being movable along the second clamping direction and the second reference member being fixedly disposed; wherein, the first reference member and the first clamping member include a first clamping seat and a first abutment member; the first abutment member of the first reference member is located between the second reference member and the second clamping member; the first abutment member includes two pressing components, at least one of the two pressing components being movable along the second clamping direction and disposed on the first clamping seat.

[0005] In one embodiment of this utility model, both the first reference member and the first clamping member further include at least one adjusting member; the first clamping seat is provided with an adjusting hole, the adjusting member passes through the adjusting hole along the first clamping direction, and the adjusting member is movable relative to the adjusting hole along the second clamping direction; the first clamping seat and the pressing component are detachably connected through the adjusting member.

[0006] In one embodiment of the present invention, the first abutting member further includes a support member; both of the two pressing components are provided with through holes; the two ends of the support member along the second clamping direction are respectively inserted into the through holes of the two pressing components; at least one of the two pressing components and the support member are in sliding engagement.

[0007] In one embodiment of the present invention, the end of the pressing component facing away from the first clamping seat is detachably connected to a first wear-resistant component; and / or, the end of the second reference component facing the second clamping component and the end of the second clamping component facing the second reference component are both detachably provided with a second wear-resistant component.

[0008] In one embodiment of the present invention, a base body is further included, and the first clamping assembly and the second clamping assembly are both disposed on the same side of the base body; the first clamping assembly further includes a first driving member, a first guide member, and a first connecting member, the first driving member being fixedly disposed on the base body; the driving end of the first driving member is connected to the first clamping seat of the first clamping member through the first connecting member; the first connecting member is slidably connected to the base body through the first guide member; the second clamping assembly further includes a second driving member, a second guide member, and a second connecting member, the second driving member being fixedly disposed on the base body; the driving end of the second driving member is connected to the second clamping member through the second connecting member; the second connecting member is slidably connected to the base body through the second guide member.

[0009] In one embodiment of the present invention, the base is provided with a first clearance opening for avoiding a target battery; along the first clamping direction, the first reference member and the first clamping member are respectively disposed on both sides of the first clearance opening; along the second clamping direction, the second reference member and the second clamping member are respectively disposed on both sides of the first clearance opening.

[0010] In one embodiment of the present invention, a base support is further included, configured to support the target battery; the base support is located on the side of the seat opposite to the first clamping assembly; the base support can move vertically relative to the seat to adjust the relative position of the target battery and the first clearance opening.

[0011] In one embodiment of this utility model, the base support includes a first base, a second base, and a third base; the first base is movable relative to the base body along the vertical direction; the second base is disposed on the first base and is movable relative to the first base along the first clamping direction; the third base is disposed on the second base and is movable relative to the second base along the second clamping direction, and the third base is configured to support the target battery; the second reference member and the second clamping member include a second clamping seat and a second abutment member, the second abutment member being movable along the first clamping direction and disposed on the second clamping seat.

[0012] In one embodiment of this utility model, a limiting member is connected to at least one side of the second base support along the second clamping direction; the first base support is provided with a base support buffer, and the base support buffer and the limiting member are arranged opposite to each other along the first clamping direction; the third base support includes a first sub-base, a second sub-base, a first elastic member, and a second elastic member; the first sub-base is disposed on the second base support, and the first sub-base is movable relative to the second base support along the second clamping direction; the first sub-base is connected to the first elastic member, and the first elastic member and the limiting member are arranged opposite to each other along the second clamping direction; the second sub-base is configured to carry the target battery; the two ends of the second elastic member along the vertical direction are respectively connected to the first sub-base and the second sub-base.

[0013] In one embodiment of the present invention, a dustproof housing is further included, which is connected to the base body; the dustproof housing covers the first clamping assembly and the second clamping assembly, and a second clearance opening is provided on the dustproof housing to expose the first reference member, the first clamping member, the second reference member and the second clamping member.

[0014] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0015] The battery welding fixture of this invention, by setting two sets of clamping components with adjustable clamping dimensions, can be well compatible with different models of battery cells. Simultaneously, by setting a pressing component that is movable in the second clamping direction, the first clamping component and the first reference component can select the most suitable position to abut against the battery cell while maintaining high compatibility, achieving the best abutment effect and thus effectively improving clamping stability. Furthermore, it can avoid problems such as displacement and shaking of the battery cell during welding, ensuring good positioning effect and high assembly accuracy. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is one of the structural schematic diagrams of the battery welding fixture in a preferred embodiment of this utility model.

[0018] Figure 2 This is a partial structural diagram of the first clamping component in a preferred embodiment of the present invention.

[0019] Figure 3 This is one of the partial cross-sectional structural schematic diagrams of the first clamping component in a preferred embodiment of this utility model.

[0020] Figure 4 This is the second partial cross-sectional view of the first clamping component in a preferred embodiment of this utility model.

[0021] Figure 5 This is the third partial cross-sectional view of the first clamping component in a preferred embodiment of this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the first clamping member in a preferred embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the structure of the second clamping member in a preferred embodiment of the present invention.

[0024] Figure 8 This is the second structural schematic diagram of the battery welding fixture in a preferred embodiment of this utility model.

[0025] Figure 9 This is the third schematic diagram of the battery welding fixture in a preferred embodiment of this utility model.

[0026] Figure 10 This is one of the structural schematic diagrams of the bottom support component in a preferred embodiment of this utility model.

[0027] Figure 11 This is a schematic diagram of the structure of the second clamping component in a preferred embodiment of the present invention.

[0028] Figure 12 This is an exploded structural diagram of the bottom support component in a preferred embodiment of this utility model.

[0029] Figure 13 This is the second structural schematic diagram of the bottom support component in a preferred embodiment of this utility model.

[0030] The above figures include the following reference numerals:

[0031] D1—First clamping direction; D2—Second clamping direction; D3—Vertical direction; 10—First clamping assembly; 101—First reference component; 102—First clamping component; 103—First driving component; 104—First guide component; 105—First connecting component; 1051—First buffer abutment part; 106—First buffer component; 11—First clamping seat; 111—Adjusting hole; 12—First abutment component; 121—Pressing component; 1211—Through hole; 122—Support component; 13—Adjusting component; 14—First wear-resistant component; 20—Second clamping assembly; 201—Second reference component; 202—Second clamping component; 203—Second driving component; 204—Second guide component; 205— Second connecting member; 2051—Second buffer abutment part; 206—Second buffer member; 21—Second wear-resistant component; 22—Second clamping seat; 23—Second abutment member; 24—Clamping guide member; 30—Seat body; 301—First clearance opening; 31—Dustproof shell; 311—Second clearance opening; 40—Bottom support member; 41—First bottom support seat; 411—Bottom support buffer member; 412—First bottom support guide member; 42—Second bottom support seat; 421—Limiting member; 422—Second bottom support guide member; 43—Third bottom support seat; 431—First sub-seat; 432—Second sub-seat; 433—First elastic member; 434—Second elastic member; 44—Bottom support driving member; 45—Third bottom support guide member. Detailed Implementation

[0032] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 application 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 application.

[0035] It should be noted that the directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. In the description of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "attachment" 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 direct connection or an indirect 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 application according to the specific circumstances.

[0036] It is important to note that the term "and / or" in this application is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Unless otherwise specified, the term "or" in this application is inclusive. For example, the phrase "A or B" means "A, B, or both A and B"; more specifically, any of the following conditions satisfies the condition "A or B": A is true (or exists) and B is false (or does not exist); or A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0038] In high-power applications such as electric vehicles, battery applications involve three levels: individual battery cells, battery modules, and battery packs. Battery modules are formed by electrically connecting a certain number of individual battery cells and placing them in a frame to protect them from external shocks, heat, and vibration. Battery packs represent the final state of the battery system installed in an electric vehicle. Currently, most battery packs are made by assembling a battery management system (BMS), thermal management components, and various control and protection systems onto one or more battery modules. With technological advancements, the battery module level can be omitted, meaning that battery packs can be formed directly from individual battery cells. This improvement increases the gravimetric and volumetric energy density of the battery system while significantly reducing the number of components. The batteries mentioned in this application include battery modules or battery packs.

[0039] In this application, the battery cell may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and the embodiments of this application are not limited to these. The battery cell may be cylindrical, flat, cuboid, or other shapes, etc., and the embodiments of this application are not limited to these. Battery cells are generally divided into three types according to their packaging method: cylindrical battery cells, cuboid / square battery cells, and pouch battery cells, and the embodiments of this application are not limited to these.

[0040] A battery cell includes a casing, electrode assembly, and electrolyte. The electrode assembly and electrolyte are housed within the casing. The electrode assembly consists of a positive electrode, a negative electrode, and a separator. The battery cell primarily functions by the movement of metal ions between the positive and negative electrode plates. The positive electrode includes a positive current collector and a positive active material layer. The positive active material layer is coated on the surface of the positive current collector. The current collector without the positive active material layer protrudes beyond the current collector with the positive active material layer, serving as the positive electrode tab. Taking a lithium-ion battery as an example, the material of the positive current collector can be aluminum, and the positive active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode includes a negative current collector and a negative active material layer. The negative active material layer is coated on the surface of the negative current collector. The current collector without the negative active material layer protrudes beyond the current collector with the negative active material layer, serving as the negative electrode tab. The negative electrode current collector can be made of copper, and the negative electrode active material can be carbon or silicon, etc. To ensure that a large current can be passed without melting, there are multiple positive electrode tabs stacked together, and there are multiple negative electrode tabs stacked together.

[0041] There are no particular limitations on the aforementioned separator membrane; any known multi-channel separator membrane with electrochemical and chemical stability can be selected, such as a single-layer or multi-layer film made of glass fiber, non-woven fabric, polyethylene, polypropylene, or polyvinylidene fluoride. The separator membrane material can be polypropylene (PP) or polyethylene (PE), etc. Furthermore, the electrode assembly can be a wound structure or a stacked structure; the embodiments of this application are not limited to these.

[0042] Of course, a single battery cell may not necessarily include electrolyte.

[0043] To meet diverse power demands, a battery can comprise multiple individual cells, which can be connected in series, parallel, or a combination of both. Optionally, multiple individual cells can first be connected in series, parallel, or a combination to form a battery module, and then these battery modules can be connected in series, parallel, or a combination to form a battery. In other words, multiple individual cells can directly form a battery, or they can first be assembled into battery modules or battery packs, and then the battery modules can be assembled into a battery. The battery is then further installed in the electrical device to provide power to it.

[0044] The development of battery technology must consider multiple design factors simultaneously, such as performance parameters like energy density, cycle life, discharge capacity, and charge / discharge rate, as well as safety. Faced with different design factors and safety requirements, battery cells are constantly being upgraded and iterated, and correspondingly, the size of battery cells is also constantly changing.

[0045] When the dimensions of a battery cell are adjusted, the related equipment used to manufacture the battery cell also needs to be adjusted. For example, during the manufacturing process, the battery cell needs to be clamped and fixed using a welding fixture, and then welded using a welding device to ensure accurate positioning of the battery cell, prevent displacement, and thus guarantee high assembly precision.

[0046] In conventional welding fixtures, each fixture is often only compatible with one type of battery cell. This means that when the battery cell model is changed, the welding fixture also needs to be changed. Debugging a new welding fixture requires a lot of time and money, resulting in wasted production capacity.

[0047] In existing technologies, some welding fixtures utilize adjustable-size structures to accommodate different battery cell models, thus improving compatibility to some extent. However, these existing welding fixtures typically only feature movable clamps, while the clamp model remains fixed. On one hand, the battery cell compatibility of the welding fixture is limited by the clamp size, resulting in limited improvement in fixture compatibility. On the other hand, a fixed-model clamp provides inconsistent clamping and holding effects when dealing with different battery cell models, making stable clamping difficult.

[0048] To solve the above problems, refer to Figure 1 As shown, this application provides a battery welding fixture, including a first clamping component 10 and a second clamping component 20. The first clamping component 10 and the second clamping component 20 cooperate with each other to clamp and fix the target battery during the welding process, preventing displacement, deformation, and other problems of the target battery. Preferably, the target battery is a single battery cell that needs to be fixed and welded. By fixing the target battery, the welding of the battery top cover and the battery casing can be achieved.

[0049] The first clamping assembly 10 includes a first reference member 101 and a first clamping member 102 disposed opposite to each other along a first clamping direction D1. The first clamping direction D1 can be set to any direction. Preferably, the first clamping direction D1 is perpendicular to the vertical direction D3.

[0050] The first reference member 101 serves as a reference for clamping and fixing, and is fixedly configured. Those skilled in the art can determine the fixing method of the first reference member 101 according to actual needs, such as welding, threading, snap-fit, etc.

[0051] The first clamping member 102 is used to cooperate with the first reference member 101 to clamp and fix the target battery in the first clamping direction D1. The first clamping member 102 can move along the first clamping direction D1. The movable structure of the first clamping member 102 has two advantages. First, it can be compatible with different models of battery cells when facing target batteries with changing dimensions, thereby improving fixture compatibility and effectively reducing replacement costs. Second, it can greatly enhance the clamping effect, so that the target battery can be stably clamped and fixed, thereby ensuring high positioning accuracy and welding effect.

[0052] Those skilled in the art can set the movable structure of the first clamping member 102 according to actual needs. For example, the first clamping member 102 can be fixed after being moved by a cylinder, or the first clamping member 102 can be fixed after being moved by a strip hole and a bolt, nut, etc. The embodiments of this application are not limited in this respect.

[0053] The second clamping assembly 20 includes a second reference member 201 and a second clamping member 202 disposed opposite to each other along a second clamping direction D2. The second clamping direction D2 can be set to any direction other than the first clamping direction D1. Preferably, the second clamping direction D2 is perpendicular to both the vertical direction D3 and the first clamping direction D1.

[0054] The second reference member 201 serves as a reference for clamping and fixing, and is fixedly configured. Those skilled in the art can determine the fixing method of the second reference member 201 according to actual needs, such as welding, threading, snap-fit, etc.

[0055] The second clamping member 202 is used to cooperate with the second reference member 201 to clamp and fix the target battery in the second clamping direction D2. The second clamping member 202 can move along the second clamping direction D2. The movable structure of the second clamping member 202 has two advantages. First, it can be compatible with different models of battery cells when the target battery size changes, thereby improving fixture compatibility and effectively reducing changeover costs. Second, it can greatly enhance the clamping effect, so that the target battery can be stably clamped and fixed, thereby ensuring high positioning accuracy and welding effect.

[0056] Those skilled in the art can set the movable structure of the second clamping member 202 according to actual needs. For example, the second clamping member 202 can be fixed after being moved by a cylinder, or the second clamping member 202 can be fixed after being moved by a strip hole and a bolt, nut, etc. The embodiments of this application are not limited in this respect.

[0057] When the target battery is a square battery, the first clamping direction D1 is preferably perpendicular to the small side of the square battery, and the second clamping direction D2 is preferably perpendicular to the large side of the square battery.

[0058] The square battery has a cuboid structure with three faces: a large side, a small side, and a top face. The large side, which corresponds to the length and height of the square battery, typically has the largest area among the three faces and is often used as a heat dissipation surface, contacting heat dissipation components such as liquid cooling plates to achieve heat dissipation. In other words, the second clamping member 202 cooperates with the second reference member 201 to abut against the large side of the square battery, thereby clamping and fixing the square battery in the second clamping direction D2.

[0059] The smaller side refers to the surface corresponding to the height and width directions of the square battery. The first clamping member 102 and the first reference member 101 cooperate to abut against the smaller side of the square battery, achieving clamping and fixing of the square battery in the first clamping direction D1. One of the two top surfaces of the square battery is usually located on the top cover. During assembly, the top cover needs to be placed on the housing along the height direction of the square battery and the two welded together. Therefore, to avoid interference with welding devices, clamping and fixing are usually performed along the length and width directions of the square battery.

[0060] Those skilled in the art can configure the shape and size of the second clamping member 202 and the second reference member 201 according to actual needs. Preferably, the dimensions of the second clamping member 202 and the second reference member 201 in the length direction of the square battery are provided with a certain redundancy, that is, the second clamping member 202 and the second reference member 201 are configured in the length direction of the square battery according to the maximum length of the square battery, so as to be compatible with square batteries of any length on the market. It is understood that the dimensions of the second clamping member 202 and the second reference member 201 in the length direction of the square battery are not less than the length of the square battery.

[0061] Reference Figure 2 As shown, unlike the second clamping member 202 and the second reference member 201, both the first reference member 101 and the first clamping member 102 include a first clamping seat 11 and a first abutment member 12. The first clamping seat 11 is used to connect the various components. On one hand, the first clamping seat 11 is connected to components such as cylinders, bolts, and nuts, so that the first reference member 101 is fixed and the first clamping member 102 can move relative to the first reference member 101. On the other hand, the first abutment member 12 is disposed on the first clamping seat 11, and the target battery is abutted by the first abutment member 12.

[0062] Specifically, the first abutment 12 includes a plurality of pressing components 121, at least one of which is movable along the second clamping direction D2 and is disposed in the first clamping seat 11. Those skilled in the art can set the specific number of pressing components 121 according to actual needs, for example, two, three, four, etc.

[0063] Preferably, only two pressing components 121 are provided, and the two pressing components 121 are arranged sequentially along the second clamping direction D2. It can be understood that when only two pressing components 121 are provided, only one pressing component 121 can be configured to be movable along the second clamping direction D2, or both pressing components 121 can be configured to be movable along the second clamping direction D2.

[0064] Those skilled in the art can set the movable structure of the press-fitting component 121 according to actual needs, for example, by using a slotted hole, bolt and nut, or by using a rack, bolt and nut, to achieve the movement and adjustment of the press-fitting component 121.

[0065] Taking a square battery as an example, by setting this structure, when the width of the square battery is adjusted, the movable pressing component 121 can cooperate well with the second clamping component 202 and the second reference component 201 to adjust the size together, achieving size compatibility. At the same time, it also allows the two pressing components 121 to select the most suitable position to abut against the small side of the square battery, achieving the best abutment effect, thereby effectively improving clamping stability. Those skilled in the art can conduct multiple tests and verifications according to actual needs to obtain the most suitable abutment position for the small side of the square battery.

[0066] It is worth noting that, in order to facilitate the movement of the second clamping member 202 and avoid interference during its movement, the first abutment member 12 of the first reference member 101 is disposed between the second reference member 201 and the second clamping member 202 along the second clamping direction D2. Preferably, along the first clamping direction D1, the first clamping seat 11 is misaligned with the second reference member 201 and the second clamping member 202.

[0067] Since the first clamping member 102 can move along the first clamping direction D1, it is relatively flexible, and this application does not limit the position of the first clamping member 102. For example, it can be positioned between the second reference member 201 and the second clamping member 202, just like the first abutment member 12 of the first reference member 101, regardless of how the first clamping member 102 moves. Alternatively, only during clamping or welding can at least a portion of the pressing component 121 of the first clamping member 102 move between the second reference member 201 and the second clamping member 202 to achieve clamping fixation. In other cases, the first clamping member 102 can move outside the second reference member 201 and the second clamping member 202, achieving misalignment in the first clamping direction D1.

[0068] Taking a square battery as an example, when welding the top cover and the casing of the square battery, firstly, according to the length and width of the square battery, the pressing component 121 of the first clamping component 102 and the first reference component 101 in the first clamping assembly 10 is adjusted so that the pressing component 121 can select the most suitable position to abut against the small side of the square battery under the premise of adapting to the width of the square battery, so as to achieve the best abutment effect.

[0069] Next, the square battery is placed between the two sets of clamping components. Finally, the square battery is clamped and fixed in the second clamping direction D2 by first cooperating with the second clamping member 202 and the second reference member 201 to abut against the large side of the square battery, and then the square battery is clamped and fixed in the first clamping direction D1 by cooperating with the first clamping member 102 and the first reference member 101 to abut against the small side of the square battery.

[0070] After clamping and fixing, welding can be performed on the square batteries. After welding the same batch of square batteries of the same type, the pressing component 121 is adjusted according to the subsequent square batteries to achieve fixture change.

[0071] The battery welding fixture described in this application, by setting two sets of clamping components with adjustable clamping dimensions, can be well compatible with different models of battery cells. Simultaneously, by setting a pressing component 121 that is movable in the second clamping direction D2, the first clamping member 102 and the first reference member 101 can select the most suitable position to abut against the battery cell while maintaining high compatibility, achieving the best abutment effect and thus effectively improving clamping stability. Based on this, it can avoid problems such as displacement and shaking of the battery cell during welding, ensuring good positioning effect and high assembly accuracy.

[0072] Reference Figure 3 and Figure 4 As shown, in some embodiments, both the first reference member 101 and the first clamping member 102 further include at least one adjusting member 13. The number of adjusting members 13 is related to the number of movable pressing parts 121 in the first reference member 101 and the first clamping member 102. Those skilled in the art can set the number of adjusting members 13 according to actual needs, such as one, two, three, four, etc.

[0073] Preferably, in the first reference member 101 and the first clamping member 102, both pressing components 121 can move along the second clamping direction D2, so a total of four adjusting members 13 are provided.

[0074] The first clamping seat 11 is provided with an adjustment hole 111. The adjustment member 13 passes through the adjustment hole 111 along the first clamping direction D1, and the adjustment member 13 can move relative to the adjustment hole 111 along the second clamping direction D2. The first clamping seat 11 and the pressing component 121 are detachably connected through the adjustment member 13.

[0075] Those skilled in the art can configure the structure of the adjusting member 13 according to actual needs to achieve a detachable connection between the first clamping seat 11 and the pressing component 121. Preferably, the adjusting member 13 is provided with threads, for example, the adjusting member 13 is configured as a bolt. Correspondingly, the pressing component 121 is provided with a threaded hole adapted to the thread of the adjusting member 13.

[0076] During assembly, the press-fit component 121 is first placed on one side of the adjustment hole 111, and then the bolt is passed in from the other side of the adjustment hole 111 and threadedly connected to the screw hole.

[0077] When the bolt is tightened, the bolt head abuts against the first clamping seat 11. At this time, the bolt head and the pressing component 121 located on the other side of the adjusting hole 111 cooperate, so that the pressing component 121 is fixed relative to the first clamping seat 11 under the action of friction. When it is necessary to move the pressing component 121 or adjust the relative position of the pressing component 121 and the first clamping seat 11, the bolt can be loosened. After loosening, the two can move relative to each other.

[0078] By setting this structure, the movable adjustment of the pressing component 121 can be realized conveniently and quickly, so that the pressing component 121 can be compatible with different models of battery cells, and select the most suitable position to abut against the battery cell to achieve the best abutment effect, thereby effectively improving the clamping stability.

[0079] While ensuring convenient and quick movable adjustment, the stability of the press-fit component 121 during clamping and movement also needs to be considered. Further, refer to... Figure 2 , Figure 3 and Figure 4 As shown, the first abutment 12 also includes a support 122. The support 122 is a rod-shaped structure, and those skilled in the art can configure it as a cylinder, cuboid, or other structure according to actual needs.

[0080] Both pressing components 121 are provided with through holes 1211, and the cross-sectional shape of the through holes 1211 matches that of the support member 122. The two ends of the support member 122 along the second clamping direction D2 pass through the through holes 1211 of the two pressing components 121 respectively, and at least one of the pressing components 121 and the support member 122 are in sliding engagement.

[0081] Preferably, one of the pressing components 121 is fixed to one end of the support member 122, while the other pressing component 121 is slidably engaged with the other end of the support member 122.

[0082] With the support member 122 and through hole 1211 provided, the support member 122, the first clamping seat 11 and the two pressing components 121 form a quadrilateral-like structure, which effectively improves the overall stability and reliability compared to the U-shaped structure without the support member 122.

[0083] Specifically, on the one hand, during clamping and fixing, the support member 122 can provide certain support for the pressing component 121, reducing the possibility of the pressing component 121 tilting relative to the first clamping seat 11, thereby ensuring that the pressing component 121 can maintain good contact with the target battery. On the other hand, during shape change and size adjustment, the support member 122 can cooperate with the first clamping seat 11 to provide guidance for the pressing component 121 that needs to be moved, ensuring convenient and smooth shape change and improving shape change efficiency.

[0084] Copper has a Brinell hardness of approximately 35 to 45 and is relatively soft. Due to its excellent ductility, malleability, and good wear resistance and fatigue resistance, copper has become a commonly used material for contact welding parts in conventional fixtures. The target battery's casing material is aluminum, aluminum alloys, etc. Although copper's hardness is generally lower than that of aluminum alloys, in actual processing, copper components, after prolonged use, inevitably suffer scratches on the casing due to work hardening or surface roughness issues, thus affecting the quality of the target battery.

[0085] Reference Figure 2 , Figure 5 and Figure 8 As shown, the end of the press-fit component 121 facing away from the first clamping seat 11 is detachably connected to the first wear-resistant component 14; and / or, the end of the second reference component 201 facing the second clamping component 202 and the end of the second clamping component 202 facing the second reference component 201 are both detachably provided with the second wear-resistant component 21. Thus, there are three cases.

[0086] Type 1: Only the end of the press-fit component 121 that is located away from the first clamping seat 11 is detachably connected to the first wear-resistant component 14.

[0087] The second type: only one end of the second reference member 201 facing the second clamping member 202, and the other end of the second clamping member 202 facing the second reference member 201 are detachably provided with a second wear-resistant component 21.

[0088] The third type: The end of the press-fit component 121 facing away from the first clamping seat 11 is detachably connected to the first wear-resistant component 14; at the same time, the end of the second reference component 201 facing the second clamping component 202 and the end of the second clamping component 202 facing the second reference component 201 are detachably provided with the second wear-resistant component 21.

[0089] Those skilled in the art can configure the materials of the first wear-resistant component 14 and the second wear-resistant component 21 according to actual needs; for example, both can be polyetheretherketone (PEEK). PEEK is a polymer composed of repeating units containing one ketone bond and two ether bonds in its main chain structure, and is a special polymer material. PEEK possesses properties such as high temperature resistance, chemical corrosion resistance, and wear resistance, making it particularly suitable for use with the press-fit component 121 to achieve clamping and fixing of the target battery.

[0090] Those skilled in the art can configure detachable connection methods between the first wear-resistant component 14 and the press-fit component 121, and between the second wear-resistant component 21 and the second clamping component 202 and the second reference component 201, according to actual needs, such as snap-fit, threaded connection, etc. Preferably, a bolt and screw hole are used to achieve a threaded connection.

[0091] For example, taking the press-fit component 121 as an example, the end of the press-fit component 121 opposite to the first clamping seat 11 has two screw holes; the first wear-resistant component 14 has two through holes 1211 corresponding to the screw holes, and the opening of the through holes 1211 has a countersunk hole to prevent the bolt head from directly contacting the target battery casing. During assembly, the bolt is inserted into the through holes 1211 and the screw holes in sequence to fix the first wear-resistant component 14 and the press-fit component 121. In actual use, the first wear-resistant component 14 directly contacts the casing, preventing the casing contact area from being scratched or crushed. After a certain period of use, if the first wear-resistant component 14 wears, a new first wear-resistant component 14 can be replaced simply by loosening the bolts.

[0092] This structure effectively avoids scratches and pressure marks on the contact areas of the casing, improving the quality of the target battery and reducing profits lost due to low quality. It also reduces fixture maintenance time, eliminates the need to readjust the welding trajectory, and effectively improves the overall equipment efficiency (OEE) of the fixture.

[0093] Since the first clamping member 102 and the second clamping member 202 are movable, their stability needs to be considered before welding and during positioning and clamping. (Refer to...) Figure 6 , Figure 7 and Figure 8 As shown, the battery welding fixture also includes a base 30, and the first clamping assembly 10 and the second clamping assembly 20 are both located on the same side of the base 30 for assembly, debugging and operation.

[0094] The first clamping assembly 10 further includes a first driving member 103, a first guide member 104, and a first connecting member 105. The first driving member 103 is fixedly mounted on the base 30 and is used to drive the first clamping member 102 to reciprocate along the first clamping direction D1. Those skilled in the art can configure the specific first driving member 103 according to actual needs, such as a cylinder, a motor, etc. The first clamping seat 11 of the first reference member 101 is fixedly connected to the base 30.

[0095] The driving end of the first driving member 103 is connected to the first clamping seat 11 of the first clamping member 102 via the first connecting member 105 to achieve transmission. The first connecting member 105 is slidably connected to the seat 30 via the first guide member 104 to ensure stability during transmission and avoid shaking, thus ensuring the production quality of the target battery and extending the service life of the fixture. Preferably, the first guide member 104 includes a slide rail and a slider.

[0096] Preferably, two first guide members 104 are provided, and the two first guide members 104 are respectively arranged on both sides of the first drive member 103 along the second clamping direction D2. By setting this structure, the first drive member 103, the first connector 105 and the first clamping member 102 can operate smoothly and stably during operation. If subjected to impact force, the impact force can be evenly transmitted to the two first guide members 104, which not only ensures the production quality of the target battery, but also extends the service life of the clamp.

[0097] The base is also provided with two first buffers 106, which are respectively arranged on both sides of the first drive member 103 along the second clamping direction D2; correspondingly, the first connecting member 105 is provided with a first buffer abutment part 1051.

[0098] When the fixture is working, the first buffer 106 can cooperate with the first buffer abutment 1051. By abutting the first buffer 106 with the first buffer abutment 1051, the inertia of the first drive 103 is relieved, thereby avoiding significant shaking when the fixture is working. This ensures the production quality of the target battery and extends the service life of the fixture.

[0099] Those skilled in the art can configure specific first buffer 106 and first buffer abutment 1051 according to actual needs, such as springs. Preferably, the first buffer 106 is configured as a hydraulic buffer, and the first buffer abutment 1051 is configured as an abutment block.

[0100] The second clamping assembly 20 further includes a second driving member 203, a second guide member 204, and a second connecting member 205. The second driving member 203 is fixedly mounted on the base 30 and is used to drive the second clamping member 202 to reciprocate along the second clamping direction D2. Those skilled in the art can configure the specific second driving member 203 according to actual needs, such as a cylinder, a motor, etc.

[0101] The driving end of the second driving member 203 is connected to the second connecting member 205 and the second clamping member 202 to achieve transmission. The second connecting member 205 is slidably connected to the seat 30 via the second guide member 204 to ensure stability during transmission and avoid shaking, thus ensuring the production quality of the target battery and extending the service life of the fixture. Preferably, the second guide member 204 includes a slide rail and a slider. The second reference member 201 is fixedly connected to the seat 30.

[0102] Preferably, two second guide members 204 are provided, and the two second guide members 204 are respectively arranged on both sides of the second drive member 203 along the first clamping direction D1. By setting this structure, the second drive member 203, the second connector 205 and the second clamping member 202 can operate smoothly and stably during operation. If subjected to impact force, the impact force can be evenly transmitted to the two second guide members 204, which not only ensures the production quality of the target battery, but also extends the service life of the fixture.

[0103] The base is also provided with a second buffer 206, and two second buffers 206 are respectively arranged on both sides of the second drive member 203 along the first clamping direction D1; correspondingly, a second buffer abutment part 2051 is provided on the second connector 205. When the fixture is working, the second buffer 206 can cooperate with the second buffer abutment part 2051. By abutting the second buffer 206 with the second buffer abutment part 2051, the inertia of the movement of the second drive member 203 is relieved, thereby avoiding significant shaking of the fixture during operation. This ensures the production quality of the target battery and extends the service life of the fixture.

[0104] Those skilled in the art can configure specific second buffer 206 and second buffer abutment 2051 according to actual needs, such as springs. Preferably, the second buffer 206 is configured as a hydraulic buffer, and the second buffer abutment 2051 is configured as an abutment block.

[0105] When changing battery models, in addition to adjusting the length and width dimensions, the height dimension also needs to be adjusted. In existing technologies, this is often achieved by adjusting the welding equipment, which requires adjusting many equipment parameters, making the process relatively complex and inefficient.

[0106] Reference Figure 8 As shown, the base 30 is further provided with a first clearance opening 301 for avoiding the target battery. Along the first clamping direction D1, a first reference member 101 and a first clamping member 102 are respectively provided on both sides of the first clearance opening 301. Along the second clamping direction D2, a second reference member 201 and a second clamping member 202 are respectively provided on both sides of the first clearance opening 301.

[0107] In practical use, a base support 40 is provided below the base body 30 corresponding to the first clearance opening 301. That is, the base support 40 is located on the side of the base body 30 away from the first clamping assembly 10, and the base support 40 is configured to support the target battery. Those skilled in the art can set the base support 40 to different heights according to actual needs, thereby adapting to target batteries of different heights.

[0108] By setting a first clearance opening 301 on the base 30, when the battery type is changed, there is no need to adjust the relevant parameters of the welding device. Only the corresponding base support 40 needs to be replaced to achieve adaptation, which is simple and convenient.

[0109] In some embodiments, refer to Figure 8 , Figure 10 and Figure 13 As shown, the base support 40 can move relative to the seat 30 in the vertical direction D3 to adjust the relative position of the target battery and the first clearance opening 301.

[0110] Those skilled in the art can configure different movable structures to achieve position adjustment according to actual needs. For example, an independent actuator can be provided for the base support 40 to drive it; or, a slotted hole, bolt, nut, etc. can be provided, and the position can be adjusted manually; or, an actuator, slotted hole, etc. can be provided at the same time.

[0111] When adjusting the position of the battery cell and the first clearance opening 301, those skilled in the art can set the corresponding adjustment direction according to actual needs. For example, one, two, or all three of the first clamping direction D1, the second clamping direction D2, and the vertical direction D3 can be selected for adjustment.

[0112] By setting up a movable and adjustable base bracket 40, the replacement and adjustment are more convenient compared to replacing the entire base bracket 40. It can effectively adapt to different models of battery cells to achieve high-quality welding and also effectively save the cost required for multiple replacements.

[0113] Preferably, in some embodiments, reference is made to Figure 10 and Figure 11 As shown, the base support 40 includes a first base support 41, a second base support 42, and a third base support 43.

[0114] The first base support 41 is movable relative to the base 30 along the vertical direction D3. Those skilled in the art can configure the movement of the first base support 41 according to actual needs. Preferably, the base support 40 further includes a base support drive 44 and a third base support guide 45. The base support drive 44 is disposed below the first base support 41 along the vertical direction D3, and its drive end is connected to the first base support 41 to drive the first base support 41 to reciprocate along the vertical direction D3. By configuring this structure, the position of the target battery and the base 30 in the vertical direction D3 can be adjusted to better accommodate target batteries of different heights and sizes.

[0115] Preferably, the base support drive 44 is configured as a cylinder. The first base support 41 is slidably connected to the seat body 30 via a third base support guide 45. The third base support guide 45 provides guidance for the movement of the first base support 41, increasing structural stability. Preferably, the third base support guide 45 includes a slide rail and a slider.

[0116] The second base support 42 is disposed on the first base support 41, and the second base support 42 is movable relative to the first base support 41 along the first clamping direction D1. Those skilled in the art can configure the connection method between the first base support 41 and the second base support 42 according to actual needs. For example, a first base support guide 412 can be provided on the first base support 41, and the second base support 42 can be slidably connected to the first base support 41 via the first base support guide 412. The first base support guide 412 provides guidance for the movement of the second base support 42, increasing structural stability. Preferably, the first base support guide 412 includes a slide rail and a slider.

[0117] The second reference member 201 and the second clamping member 202 include a second clamping seat 22 and a second abutment 23. The second abutment 23 is movable along the first clamping direction D1 and is disposed on the second clamping seat 22. Preferably, the second clamping seat 22 of the second reference member 201 is fixedly connected to the seat body 30, the second clamping seat 22 of the second clamping member 202 is connected to the second connecting member 205, and a second wear-resistant component 21 is detachably connected to one end of the second abutment 23 that is disposed away from the second clamping seat 22.

[0118] Those skilled in the art can configure the movable connection between the second abutment 23 and the second clamping seat 22 according to actual needs. Preferably, the second abutment 23 is slidably connected to the second clamping seat 22 via the clamping guide 24.

[0119] By setting this structure, when positioning and clamping, the target battery can be fixed in the second clamping direction D2 by the second clamping component 20 first, and then the target battery can be fixed in the first clamping direction D1 by the first clamping component 10.

[0120] After the second abutment 23 of the second clamping assembly 20 comes into contact with the target battery, since the second abutment 23 can move relative to the second clamping seat 22 and the second base seat 42 can move relative to the first base seat 41, although the target battery is positioned in the second clamping direction D2, its position can still be adjusted in the first clamping direction D1. This structure ensures positioning accuracy and effectively prevents damage to the target battery casing.

[0121] A third base support 43 is disposed on the second base support 42 and is configured to support the target battery. The third base support 43 is movable relative to the second base support 42 along the second clamping direction D2. Those skilled in the art can configure the connection between the second base support 42 and the third base support 43 according to actual needs. For example, a second base support guide 422 can be provided on the second base support 42, and the third base support 43 can be slidably connected to the second base support 42 via the second base support guide 422. The second base support guide 422 provides guidance for the movement of the third base support 43, increasing structural stability. Preferably, the second base support guide 422 includes a slide rail and a slider.

[0122] By setting this structure, when the target battery is positioned and clamped in the second clamping direction D2 by the second clamping component 20, if there is a certain angular deviation in the target battery, it can also be corrected by the movable connection structure between the third base 43 and the second base 42, thereby effectively ensuring the positioning accuracy and preventing damage to the target battery casing.

[0123] Furthermore, refer to Figure 10 and Figure 12 As shown, in some embodiments, a limiting member 421 is connected to at least one side of the second base 42 along the second clamping direction D2. The first base 41 is provided with a base buffer 411, and the base buffer 411 and the limiting member 421 are arranged opposite to each other along the first clamping direction D1. When the first clamping assembly 10 is working, the limiting member 421 can abut against the base buffer 411 to alleviate the inertia of the first drive member 103, thereby avoiding significant shaking during the operation of the clamp, ensuring the production quality of the target battery and extending the service life of the clamp. Those skilled in the art can set specific base buffer 411 and limiting member 421 according to actual needs. Preferably, the base buffer 411 is set as a hydraulic buffer and the limiting member 421 is set as a limiting block.

[0124] Furthermore, refer to Figure 10 and Figure 12 As shown, in some embodiments, the third base 43 includes a first sub-base 431, a second sub-base 432, a first elastic member 433, and a second elastic member 434.

[0125] The first sub-seat 431 is disposed on the second base seat 42 and is movable relative to the second base seat 42 along the second clamping direction D2. Preferably, the first sub-seat 431 is slidably connected to the second base seat 42 via the second base guide 422.

[0126] The first sub-seat 431 is connected to a first elastic element 433, and the first elastic element 433 and the limiting element 421 are arranged opposite to each other along the second clamping direction D2. Preferably, two sets of limiting elements 421 and first elastic elements 433 are provided, respectively arranged on both sides of the first sub-seat 431 along the second clamping direction D2. The end of the first elastic element 433 facing away from the first sub-seat 431 is connected to the limiting element 421. Preferably, a corresponding connecting blind hole is provided on the limiting element 421, and the first elastic element 433 is set as a spring, with its end passing through the connecting blind hole.

[0127] By designing this structure, compared to other movable connection structures, it can provide elastic force to the target battery through the first elastic element 433, achieving floating. This makes the entire clamping process smooth, stable, and without shaking, effectively reducing the risk of collisions or battery failure caused by screws or components loosening due to long-term operation of the clamp.

[0128] The second support 432 is configured to carry the target battery, and the two ends of the second elastic member 434 along the vertical direction D3 are respectively connected to the first support 431 and the second support 432. Preferably, the second elastic member 434 is a spring. By setting this structure, when the target battery is loaded, the second elastic member 434 can provide an elastic force, thereby buffering the speed at which the target battery descends, making the clamp flexible and avoiding damage to the battery casing.

[0129] During the welding process of the target battery, impurities such as weld slag are easily generated. When these impurities enter the corresponding components of the fixture, they can affect the normal operation of the components. For example, when weld slag enters the slide rail, it will affect the normal movement of the slider on the slide rail and affect the stability of the fixture.

[0130] To solve the above problems, refer to Figure 9 As shown, the battery welding fixture also includes a dustproof housing 31. The dustproof housing 31 is connected to the base 30. Those skilled in the art can configure the connection method between the two according to actual needs. Preferably, the two are detachably connected by bolts and screw holes.

[0131] The dustproof housing 31 covers the first clamping assembly 10 and the second clamping assembly 20, providing coverage and protection for the corresponding components and preventing impurities such as welding slag from entering the components and affecting the stability of the clamp. The dustproof housing 31 is provided with a second clearance opening 311 to expose the first reference component 101, the first clamping component 102, the second reference component 201, and the second clamping component 202, thus avoiding the target battery and enabling the loading / unloading device, welding device, etc., to operate normally. Preferably, the second clearance opening 311 corresponds to the first clearance opening 301.

[0132] Reference Figure 8 and Figure 13As shown, two sets of first clamping assemblies 10, two sets of second clamping assemblies 20, and two sets of base supports 40 can be simultaneously arranged on the base 30 to facilitate batch operations during welding and effectively improve production efficiency. The second reference members 201 of the two sets of second clamping assemblies 20 are arranged adjacent to each other, and the two sets of base supports 40 can share the same base support drive member 44 to improve space utilization.

[0133] This application also provides a battery cell, which is prepared using the battery welding fixture described in any of the above embodiments.

[0134] This application also provides an electrical device, including at least one battery cell as described in any of the above embodiments.

[0135] Electrical equipment can include automobiles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, etc. Automobiles can be gasoline-powered, natural gas-powered, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. The embodiments of this utility model do not impose special limitations on the above-mentioned electrical equipment.

[0136] Working principle:

[0137] During welding, the base support 40 and the pressing component 121 are first adjusted according to the specifications and dimensions of the current model of square battery to achieve optimal fit. After the adjustment is completed, the target battery is placed on the second mounting base 432 by a loading and unloading device, such as a robotic arm. During the placement process, the second elastic element 434 provides elastic force to buffer the descent speed of the target battery and prevent damage to the casing.

[0138] After the target battery is in place, it is first fixed in the second clamping direction D2 by the second clamping assembly 20. Specifically, driven by the second driving member 203, the second clamping member 202 abuts against the target battery through the second wear-resistant member 21. During this process, the first support 431 can move relative to the second base 42 along the second clamping direction D2, while the first elastic member 433 provides elastic force to achieve floating and prevent damage to the casing.

[0139] After fixing in the second clamping direction D2, the first clamping assembly 10 then fixes the battery in the first clamping direction D1. Specifically, driven by the first driving member 103, the first clamping member 102 abuts against the target battery through the first wear-resistant member 14. During this process, the second base 42 can move relative to the first base 41 along the first clamping direction D1, and the two second abutting members 23 of the second clamping assembly 20 can also move synchronously to prevent damage to the housing and achieve precise positioning.

[0140] Finally, the welding operation can be performed using the welding device. After welding is completed, each component is reset, and the robotic arm unloads and loads the components, repeating the operation until the welding of the current batch is completed. After welding the same type of square batteries in the same batch, the pressing component 121 and other components are adjusted according to the subsequent square batteries to achieve fixture changeover.

[0141] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0142] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0143] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery welding fixture, characterized in that, include: The first clamping assembly (10) includes a first reference member (101) and a first clamping member (102) disposed opposite to each other along a first clamping direction (D1). The first clamping member (102) is movable along the first clamping direction (D1), and the first reference member (101) is fixedly disposed. The second clamping assembly (20) includes a second reference member (201) and a second clamping member (202) disposed opposite to each other along the second clamping direction (D2). The second clamping member (202) is movable along the second clamping direction (D2), and the second reference member (201) is fixedly disposed. The first reference member (101) and the first clamping member (102) include a first clamping seat (11) and a first abutting member (12); the first abutting member (12) of the first reference member (101) is located between the second reference member (201) and the second clamping member (202); The first abutment (12) includes two press-fitting components (121), at least one of the two press-fitting components (121) being movable along the second clamping direction (D2) and disposed in the first clamping seat (11).

2. The battery welding fixture according to claim 1, characterized in that: Both the first reference member (101) and the first clamping member (102) further include at least one adjusting member (13); The first clamping seat (11) is provided with an adjustment hole (111), the adjustment member (13) passes through the adjustment hole (111) along the first clamping direction (D1), and the adjustment member (13) can move relative to the adjustment hole (111) along the second clamping direction (D2); the first clamping seat (11) and the pressing component (121) are detachably connected through the adjustment member (13).

3. The battery welding fixture according to claim 2, characterized in that: The first abutment (12) also includes a support (122); Both of the press-fitting components (121) are provided with through holes (1211); the two ends of the support member (122) along the second clamping direction (D2) are respectively inserted through the through holes (1211) of the two press-fitting components (121); at least one of the two press-fitting components (121) and the support member (122) are in sliding fit.

4. The battery welding fixture according to claim 1, characterized in that: The pressing component (121) is detachably connected to a first wear-resistant component (14) at one end opposite to the first clamping seat (11). And / or, The second reference member (201) is provided with a second wear-resistant component (21) at one end facing the second clamping member (202), and the second clamping member (202) is provided with a second end facing the second reference member (201).

5. The battery welding fixture according to any one of claims 1 to 4, characterized in that: It also includes a base (30), wherein the first clamping assembly (10) and the second clamping assembly (20) are both disposed on the same side of the base (30); The first clamping assembly (10) further includes a first driving member (103), a first guide member (104), and a first connecting member (105). The first driving member (103) is fixedly disposed on the base (30). The driving end of the first driving member (103) is connected to the first clamping seat (11) of the first clamping member (102) through the first connecting member (105). The first connecting member (105) is slidably connected to the base (30) through the first guide member (104). The second clamping assembly (20) further includes a second driving member (203), a second guide member (204), and a second connecting member (205). The second driving member (203) is fixedly disposed on the base (30). The driving end of the second driving member (203) is connected to the second clamping member (202) through the second connecting member (205). The second connecting member (205) is slidably connected to the base (30) through the second guide member (204).

6. The battery welding fixture according to claim 5, characterized in that: The base (30) is provided with a first avoidance opening (301) for avoiding the target battery. Along the first clamping direction (D1), the first reference member (101) and the first clamping member (102) are respectively disposed on both sides of the first clearance opening (301); along the second clamping direction (D2), the second reference member (201) and the second clamping member (202) are respectively disposed on both sides of the first clearance opening (301).

7. The battery welding fixture according to claim 6, characterized in that, Also includes: The base support (40) is configured to carry the target battery; The base support (40) is located on the side of the seat (30) away from the first clamping assembly (10); the base support (40) can move relative to the seat (30) in the vertical direction (D3) to adjust the relative position of the target battery and the first clearance opening (301).

8. The battery welding fixture according to claim 7, characterized in that: The base support (40) includes a first base support (41), a second base support (42), and a third base support (43); the first base support (41) is movable relative to the base body (30) along the vertical direction (D3); the second base support (42) is disposed on the first base support (41) and is movable relative to the first base support (41) along the first clamping direction (D1); the third base support (43) is disposed on the second base support (42) and is movable relative to the second base support (42) along the second clamping direction (D2), and is configured to carry the target battery; The second reference member (201) and the second clamping member (202) include a second clamping seat (22) and a second abutment (23), the second abutment (23) being movable along the first clamping direction (D1) and disposed in the second clamping seat (22).

9. The battery welding fixture according to claim 8, characterized in that: The second base (42) is connected to a limiting member (421) on at least one side along the second clamping direction (D2); the first base (41) is provided with a base cushion (44), and the base cushion (44) and the limiting member (421) are arranged opposite to each other along the first clamping direction (D1); The third base support (43) includes a first sub-base (431), a second sub-base (432), a first elastic member (433), and a second elastic member (434); the first sub-base (431) is disposed on the second base support (42) along the second clamping direction (D2), and the first sub-base (431) is movable relative to the second base support (42); the first sub-base (431) is connected to the first elastic member (433), and the first elastic member (433) and the limiting member (421) are disposed opposite to each other along the second clamping direction (D2); the second sub-base (432) is configured to carry the target battery; the two ends of the second elastic member (434) along the vertical direction (D3) are respectively connected to the first sub-base (431) and the second sub-base (432).

10. The battery welding fixture according to claim 5, characterized in that, Also includes: A dustproof housing (31) is connected to the base (30); the dustproof housing (31) covers the first clamping assembly (10) and the second clamping assembly (20), and the dustproof housing (31) is provided with a second clearance opening (311) to expose the first reference member (101), the first clamping member (102), the second reference member (201) and the second clamping member (202).

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