Lithium battery mounting platform and spot welding equipment

Abstract

This utility model belongs to the technical field of lithium battery production equipment, and particularly relates to lithium battery spot welding. This utility model provides a lithium battery fixing platform and spot welding equipment. The lithium battery fixing platform includes: a base with a frame surrounding its upper part, guide holes on both corresponding side walls of the frame, and locking sliding holes above the guide holes; at least two adjusting rods, each with guide holes at both ends, and concave surfaces between adjacent adjusting rods facing each other to form clamping positions for batteries of various sizes, wherein the curvature of the concave surface is greater than the curvature of the side wall of the battery column; and a pair of locking members, each with locking sliding holes above the corresponding guide holes, and a stop block located below abutting against the outermost adjusting rod. This utility model, by setting slidable adjusting rods on the frame, enables the battery to be fixed between the opposing concave surfaces at an adjustable distance, allowing the fixing platform to adapt to batteries within a certain size range, thus solving the technical problem of needing to replace the entire positioning assembly after changing battery models.

Description

Technical Field

[0001] This utility model belongs to the technical field of lithium battery production equipment, specifically relating to lithium battery spot welding, and particularly to lithium battery fixing platform and spot welding equipment. Background Technology

[0002] In the manufacturing process of cylindrical lithium batteries, the spot welding process between the cell and the connecting piece is a key step to achieve electrical conduction of the battery. Related technologies usually use a fixed frame tray as a positioning tool, which fixes the outer diameter of the battery cylinder through a mechanical limiting structure, and completes the welding operation with laser or resistance welding equipment.

[0003] In the existing technology, the tray structure consists of a tray body and a positioning groove. The positioning groove has a specific diameter (such as 18mm or 21mm) to rigidly match the battery. When switching models, the entire positioning component needs to be replaced, resulting in a production line changeover time of up to 2-4 hours, which seriously affects the demand for flexible production of multiple varieties.

[0004] Therefore, how to solve the problem of needing to replace the entire positioning component after switching battery models is a technical problem that urgently needs to be solved in this field.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one lithium battery mounting platform and spot welding equipment to solve the technical problem of needing to replace the entire positioning component after switching battery models.

[0007] In a first aspect, this disclosure provides a lithium battery fixing platform, comprising: a base with a frame surrounding its upper part, guide holes being provided on two corresponding side walls of the frame, and locking sliding holes being provided above the guide holes; at least two adjusting rods, with their ends passing through the guide holes, and the concave surfaces between adjacent adjusting rods facing each other to form clamping positions for batteries of various sizes, wherein the curvature of the concave surface is greater than the curvature of the side wall of the battery column; a pair of locking members, each passing through the locking sliding holes above the corresponding guide holes, and a stop block located below abutting against the outermost adjusting rod; the locking members moving to one side along the locking sliding holes cause the remaining adjusting rods to tighten on the same side to clamp each battery.

[0008] In one optional embodiment, the locking member includes a threaded rod, one end of which passes through a locking slide hole and is provided with a locking cap, and the other end is connected to a stop block; wherein, the locking cap rotates so that its bottom surface presses against the frame to secure the stop block.

[0009] In one optional embodiment, the bottom of the stop block is provided with a sliding groove; the lower edge of the guide hole serves as a slide rail adapted to the sliding groove; wherein the stop block moves on the guide hole through the sliding groove.

[0010] Secondly, this disclosure also provides a spot welding device, including: an operating table with a protective cover along its edge, and a spot welding head disposed inside the protective cover; a fixed platform disposed on the operating table and below the spot welding head, the fixed platform being moved on the operating table by a driving device; the fixed platform includes: a base with a frame surrounding its upper part, guide holes being provided on both corresponding side walls of the frame, and locking sliding holes being provided above the guide holes; at least two adjusting rods with guide holes at both ends, the batteries being adapted to be clamped between adjacent adjusting rods; a pair of locking members, the upper ends of which respectively pass through the locking sliding holes above the corresponding guide holes, and the lower stop block abutting against the outermost adjusting rod; the locking members moving to one side along the locking sliding holes cause the remaining adjusting rods to tighten on the same side, thereby clamping each battery.

[0011] In one alternative embodiment, the concave surfaces between adjacent adjustment levers are opposite each other to form a clamping position for batteries of each size; wherein each adjustment lever is tightened on the same side to clamp each battery within the clamping position.

[0012] In one alternative embodiment, the curvature of the concave surface is greater than the curvature of the sidewall of the battery column.

[0013] In one optional embodiment, the locking member includes a threaded rod, one end of which passes through a locking slide hole and is provided with a locking cap, and the other end is connected to a stop block; wherein, the locking cap rotates so that its bottom surface presses against the frame to secure the stop block.

[0014] In one optional embodiment, the bottom of the stop block is provided with a sliding groove; the lower edge of the guide hole serves as a slide rail adapted to the sliding groove; wherein the stop block moves on the guide hole through the sliding groove.

[0015] The beneficial effects of this utility model are that it provides a lithium battery fixing platform and spot welding equipment. By setting a sliding adjustment rod on the frame, the width of the clamping position can be adjusted by moving adjacent adjustment rods. Then, the locking member abuts against the end face of the last adjustment rod, so that the battery can be fixed between the relatively concave surfaces with an adjustable distance. This allows the fixing platform to adapt to batteries within a certain size range, solving the technical problem of having to replace the entire positioning component after changing battery models.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A perspective view of the spot welding equipment provided in the embodiments of this disclosure;

[0020] Figure 2 A perspective view of the battery being supported by a fixed platform according to an embodiment of this disclosure;

[0021] Figure 3 A perspective view of the fixed platform provided in an embodiment of this disclosure;

[0022] Figure 4 This is a perspective view of a locking member provided in an embodiment of this disclosure.

[0023] In the picture:

[0024] 1. Control panel;

[0025] 2. Protective cover;

[0026] 3. Fixed platform; 31. Base; 32. Frame; 321. Guide hole; 322. Locking slide hole; 33. Adjusting rod; 331. Outermost adjusting rod; 332. Concave surface; 333. Clamping position; 34. Locking component; 341. Threaded rod; 342. Rotating end; 343. Stop block; 344. Locking cap; 345. Slide groove;

[0027] 4. Drive unit;

[0028] 5. Spot welding head;

[0029] 6. Battery. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0032] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0033] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0034] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0035] Research has revealed the following drawbacks of the existing technology: the tray structure consists of a tray body and a positioning groove. The positioning groove has a specific diameter (such as 18mm or 21mm) to rigidly match the battery. When switching models, the entire positioning component needs to be replaced, resulting in a production line changeover time of 2-4 hours, which seriously affects the demand for flexible production of multiple varieties.

[0036] Therefore, how to solve the problem of needing to replace the entire positioning component after switching battery models is a technical problem that urgently needs to be solved in this field.

[0037] The shortcomings of the above solutions are the result of the utility model inventor's practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as contributions made by the utility model inventor to this disclosure.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0040] Some embodiments provide a lithium battery mounting platform, including: a base 31, with a frame 32 surrounding its upper part, the interior of the frame 32 for arranging batteries 6, wherein guide holes 321 are provided on two corresponding side walls of the frame 32, and locking sliding holes 322 are provided above the guide holes 321; at least two adjusting rods 33, with guide holes 321 passing through both ends, and concave surfaces 332 between adjacent adjusting rods 33 facing each other to form clamping positions 333 for batteries 6 of various sizes, wherein the curvature of the concave surface 332 is greater than the curvature of the side wall of the battery 6 column, so as to better adapt to batteries 6 of different sizes and models; the adjusting rods 33 are disposed between the two guide holes 321, and the batteries 6 are clamped and fixed by the two adjusting rods 33. By adjusting the distance between adjacent adjusting rods 33, different models of batteries 6 can be adapted, that is, by moving the adjusting rods 33 in the direction F, the distance H between adjacent adjusting rods 33 can be reduced.

[0041] To ensure that the position of the outermost adjusting rod 331 is relatively fixed after the adjusting rod 33 clamps the battery 6, a pair of corresponding locking members 34 are provided on the same side at both ends. The upper part of the locking member 34 passes through the locking slide hole 322 above the corresponding guide hole 321, and the stop block 343 located below abuts against the outermost adjusting rod 331. The locking member 34 moves to one side along the locking slide hole 322 to tighten the other adjusting rods 33 on the same side to clamp each battery 6. Specifically, after arranging the battery 6 between two adjacent adjusting rods 33, the outermost adjusting rod 331 is moved to abut against the surface of the outermost row of battery 6 and a certain pressure is generated. At this time, the locking member 34 is moved to abut against the outermost adjusting rod 331.

[0042] The following describes the specific structure of the locking component 34, which includes a threaded rod 341, one end of which passes through the locking slide hole 322 and is provided with a locking cap 344, and the other end is connected to the stop block 343. The locking cap 344 rotates, causing its bottom surface to press against the frame 32 to secure the stop block 343. The bottom of the stop block 343 has a sliding groove 345. The stop block 343 is generally U-shaped and is used to move along the lower surface of the guide hole 321. The lower edge of the guide hole 321 serves as a guide for the sliding groove 345. The slide rail is equipped with a stop block 343 that moves on the guide hole 321 via the slide groove 345. When the stop block 343 moves to abut against the side of the outermost adjusting rod 331, the locking cap 344 needs to be rotated to press the locking cap 344 against the top surface of the locking slide hole 322, thereby fixing the position of the stop block 343, which is also fixing the position of the outermost adjusting rod 331. This locking battery 6 is simple to operate and can also operate multiple batteries 6 at the same time, effectively improving production efficiency.

[0043] Some embodiments provide a spot welding device, including: an operating table 1 with a protective cover 2 along its edge, and a spot welding head 5 disposed inside the protective cover 2; a fixed platform 3 disposed on the operating table 1 and below the spot welding head 5, the fixed platform 3 being moved on the operating table 1 by a driving device 4; the driving device 4 being able to drive the fixed platform 3 to move horizontally as a whole to below the spot welding head 5, specifically, before the spot welding operation, the fixed platform 3 is pushed by the driving device 4 to a safe area outside the spot welding head 5, and during spot welding, its corresponding battery 6 is moved to below the spot welding head 5.

[0044] The fixing platform 3 includes: a base 31, with a frame 32 surrounding its upper part. The interior of the frame 32 is used to arrange batteries 6. Guide holes 321 are provided on both corresponding side walls of the frame 32, and locking sliding holes 322 are provided above the guide holes 321; at least two adjusting rods 33, with guide holes 321 passing through both ends of the rods. The concave surfaces 332 between adjacent adjusting rods 33 are opposite to form clamping positions 333 for batteries 6 of various sizes. The curvature of the concave surface 332 is greater than the curvature of the side wall of the battery 6 column, which better accommodates batteries 6 of different sizes and models. The adjusting rods 33 are arranged between the two guide holes 321. The batteries 6 are clamped and fixed by the two adjusting rods 33. By adjusting the distance between adjacent adjusting rods 33, different models of batteries 6 can be accommodated. That is, by moving the adjusting rods 33 in the direction F, the distance H between adjacent adjusting rods 33 can be reduced.

[0045] To ensure that the position of the outermost adjusting rod 331 is relatively fixed after the adjusting rod 33 clamps the battery 6, a pair of corresponding locking members 34 are provided on the same side at both ends. The upper part of the locking member 34 passes through the locking slide hole 322 above the corresponding guide hole 321, and the stop block 343 located below abuts against the outermost adjusting rod 331. The locking member 34 moves to one side along the locking slide hole 322 to tighten the other adjusting rods 33 on the same side to clamp each battery 6. Specifically, after arranging the battery 6 between two adjacent adjusting rods 33, the outermost adjusting rod 331 is moved to abut against the surface of the outermost row of battery 6 and a certain pressure is generated. At this time, the locking member 34 is moved to abut against the outermost adjusting rod 331.

[0046] The following describes the specific structure of the locking component 34, which includes a threaded rod 341, one end of which passes through the locking slide hole 322 and is provided with a locking cap 344, and the other end is connected to the stop block 343. The locking cap 344 rotates, causing its bottom surface to press against the frame 32 to secure the stop block 343. The bottom of the stop block 343 has a sliding groove 345. The stop block 343 is generally U-shaped and is used to move along the lower surface of the guide hole 321. The lower edge of the guide hole 321 serves as a guide for the sliding groove 345. The slide rail is equipped with a stop block 343 that moves on the guide hole 321 via the slide groove 345. When the stop block 343 moves to abut against the side of the outermost adjusting rod 331, the locking cap 344 needs to be rotated to press the locking cap 344 against the top surface of the locking slide hole 322, thereby fixing the position of the stop block 343, which is also fixing the position of the outermost adjusting rod 331. This locking battery 6 is simple to operate and can also operate multiple batteries 6 at the same time, effectively improving production efficiency.

[0047] In summary, this embodiment achieves the following by setting a sliding adjustment rod 33 on the frame 32, allowing adjacent adjustment rods 33 to adjust the width of the clamping position 333 by moving, and then having the locking member 34 abut against the end face of the last adjustment rod 331, thereby fixing the battery 6 between the relatively concave surfaces 332 with an adjustable distance, so that the fixing platform 3 can adapt to batteries 6 within a certain size range, thus solving the technical problem of needing to replace the entire positioning component after switching battery 6 models.

[0048] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0050] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A lithium battery mounting platform, characterized in that, include: The base (31) has a frame (32) surrounding its upper part. The frame (32) has guide holes (321) on both corresponding side walls, and a locking slide hole (322) is provided above the guide holes (321). At least two adjusting rods (33) are provided with guide holes (321) at both ends, and the concave surfaces (332) between adjacent adjusting rods (33) are opposite to form clamping positions (333) for batteries (6) of various sizes, wherein the curvature of the concave surface (332) is greater than the curvature of the side wall of the battery (6) column. A pair of locking elements (34) pass through locking slide holes (322) above corresponding guide holes (321) respectively, and the stop block (343) located below abuts against the outermost adjusting rod (331); The locking member (34) moves to one side along the locking slide hole (322) so that the remaining adjustment rods (33) are tightened on the same side to clamp each battery (6).

2. The lithium battery mounting platform as described in claim 1, characterized in that, The locking component (34) includes a threaded rod (341), one end of which passes through the locking slide hole (322) and is provided with a locking cap (344), and the other end is connected to the stop block (343); The locking cap (344) rotates, causing its bottom surface to press against the frame (32) to secure the stop block (343).

3. The lithium battery mounting platform as described in claim 1, characterized in that, The bottom of the stop block (343) is provided with a sliding groove (345); The lower edge of the guide hole (321) serves as a slide rail that adapts to the slide groove (345); wherein, The stop block (343) moves on the guide hole (321) via the slide (345).

4. A spot welding device, characterized in that, include: The operating table (1) has a protective cover (2) on its edge, and a spot welding head (5) is provided inside the protective cover (2). A fixed platform (3) is set on the operating platform (1) and below the spot welding head (5). The fixed platform (3) moves on the operating platform (1) via a drive device (4). The fixed platform (3) includes: The base (31) has a frame (32) surrounding its upper part. The frame (32) has guide holes (321) on both corresponding side walls, and a locking slide hole (322) is provided above the guide holes (321). At least two adjustment rods (33) are provided with guide holes (321) at both ends, and the battery (6) is adapted to be clamped between adjacent adjustment rods (33); A pair of locking elements (34) pass through locking slide holes (322) above corresponding guide holes (321) respectively, and the stop block (343) located below abuts against the outermost adjusting rod (331); The locking member (34) moves to one side along the locking slide hole (322) so that the remaining adjustment rods (33) are tightened on the same side to clamp each battery (6).

5. The spot welding equipment as described in claim 4, characterized in that, The concave surfaces (332) between adjacent adjustment rods (33) are opposite each other to form a clamping position (333) for each size battery (6). Among them, each adjustment rod (33) is tightened on the same side to clamp each battery (6) in the clamping position (333).

6. The spot welding equipment as described in claim 5, characterized in that, The curvature of the concave surface (332) is greater than the curvature of the side wall of the battery (6) column.

7. The spot welding equipment as described in claim 6, characterized in that, The locking component (34) includes a threaded rod (341), one end of which passes through the locking slide hole (322) and is provided with a locking cap (344), and the other end is connected to the stop block (343); The locking cap (344) rotates, causing its bottom surface to press against the frame (32) to secure the stop block (343).

8. The spot welding equipment as described in claim 7, characterized in that, The bottom of the stop block (343) is provided with a sliding groove (345); The lower edge of the guide hole (321) serves as a slide rail that adapts to the slide groove (345); wherein, The stop block (343) moves on the guide hole (321) via the slide (345).

Images