Clamping tool

Abstract

The utility model relates to a clamping tool. The clamping tool comprises two side plate assemblies and two tensioning assemblies arranged at the two ends of the two side plate assemblies correspondingly. A containing area is defined by the two side plate assemblies and the two tensioning assemblies, the containing area is used for containing a battery, a positioning structure is arranged on the inner side of at least one side plate assembly, and the positioning structure is used for fixing a connecting piece; the two tensioning assemblies can enable the two side plate assemblies to move in opposite directions until the connecting piece is pressed on the pole of the battery, and an operation hole is reserved in the position, corresponding to the connecting piece, of each side plate assembly. The clamping tool provided by the utility model is simple in structure, and the battery welding efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery assembly, and more specifically, to a clamping tool. Background Art

[0002] In order to improve the assembly efficiency of the battery, it is usually necessary to fix the battery with a tooling before welding. In the process of cascade battery assembly, the connecting piece needs to be penetrated and welded to the battery pole. However, unlike seam welding, which can directly put the connecting piece on the pole of the battery cell, penetration welding requires additional mold-opening and fixing materials for the connecting piece, resulting in lower production costs and production efficiency. Utility Model Content

[0003] One purpose of the utility model is to provide a new technical solution for clamping tooling.

[0004] According to one aspect of the utility model, a clamping tool is provided, which is applied to battery welding, comprising:

[0005] Two side plate assemblies and two tensioning assemblies respectively arranged at two ends of the two side plate assemblies;

[0006] The two side plate assemblies and the two tensioning assemblies enclose a receiving area, the receiving area is used to place the battery, and a positioning structure is provided on the inner side of at least one of the side plate assemblies, the positioning structure is used to fix the connecting sheet;

[0007] The two tensioning assemblies can move the two side plate assemblies toward each other until the connecting piece is pressed onto the pole of the battery, and the side plate assemblies are provided with operating holes at positions corresponding to the connecting pieces.

[0008] Optionally, the side plate assembly includes a fixed plate and a clamping plate, the fixed plate is assembled on the inner side of the clamping plate, the positioning structure is arranged on the fixed plate, and the two tensioning assemblies are respectively connected to the two ends of the two clamping plates and can make the two clamping plates move toward each other.

[0009] Optionally, the positioning structure includes a positioning groove, and the positioning groove is used to place the connecting piece and enable the position of the connecting piece to be opposite to the pole.

[0010] Optionally, the positioning structure further includes a positioning pin, which is disposed in the positioning groove and is used to pass through the connecting piece so that the connecting piece can be opposite to the center of the pole.

[0011] Optionally, a plurality of positioning structures are arranged at intervals along the length direction of the fixing plate.

[0012] Optionally, the side plate assembly also includes a compression sleeve having a center hole, and the fixed plate and the compression plate are respectively provided with a first through hole and a second through hole, the compression sleeve is assembled in the first through hole, and one end thereof can pass through the second through hole and be pressed onto the connecting plate, and the center hole forms the operating hole.

[0013] Optionally, the compression sleeve includes a first connecting member, an elastic member and a second connecting member, the two ends of the elastic member are respectively connected to the first connecting member and the second connecting member, and the first connecting member is assembled in the first through hole so that a part of the second connecting member can pass through the fixing plate and be pressed onto the connecting sheet.

[0014] Optionally, the side plate assembly further includes a linear bearing, and the fixing plate is movably assembled on the clamping plate via the linear bearing.

[0015] Optionally, the tensioning assembly comprises a first side pull plate, a second side pull plate and a quick clamp, one end of the first side pull plate and the second side pull plate are respectively connected to the two side plate assemblies, and the other end is respectively connected to the quick clamp;

[0016] The quick clamp is suitable for moving the two side plate assemblies toward each other to a set position through the first side pull plate and the second side pull plate.

[0017] Optionally, it further includes a first leg and a second leg, wherein the first leg is used to support the side panel assembly, and the second leg is used to support the tensioning assembly, so as to keep the clamping tool balanced.

[0018] One technical effect of the utility model is that the clamping tool provided by the utility model, through the tensioning effect of the tensioning assembly on the two side panel assemblies, enables the connecting piece fixed on the inner side of the side panel assembly through the positioning structure to be pressed onto the battery pole placed in the accommodating area, thereby achieving the fixation and positioning of the connecting piece relative to the battery pole, and then achieving the purpose of welding the connecting piece and the pole through the operating hole. It has high applicability and does not need to increase the material for opening the mold to fix the connecting piece, thereby improving the assembly efficiency of the battery and reducing the production cost.

[0019] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0021] Figure 1 The utility model is a structural schematic diagram of a clamping tool provided by the utility model.

[0022] Figure 2 yes Figure 1 Exploded diagram.

[0023] Figure 3 It is a schematic diagram of a clamping tool equipped with a battery module provided by the utility model.

[0024] Figure 4 yes Figure 3 Exploded diagram.

[0025] Description of reference numerals:

[0026] 1. Battery; 2. Accommodating area; 3. Fixing plate; 4. Pressing plate; 5. Positioning groove; 6. Positioning pin; 7. Pressing sleeve; 8. Operating hole; 9. Linear bearing; 10. First side pull plate; 11. Second side pull plate; 12. Quick clamp; 13. First leg; 14. Second leg; 15. First through hole; 16. Second through hole; 17. Connecting piece. DETAILED DESCRIPTION

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0029] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0030] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0031] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0032] like Figures 1 to 4As shown, according to one aspect of the utility model, a clamping tool is provided, which is applied to the welding of a battery 1, comprising: two side panel assemblies and two tensioning assemblies respectively arranged at both ends of the two side panel assemblies; the two side panel assemblies and the two tensioning assemblies enclose a receiving area 2, the receiving area 2 is used to place the battery 1, and a positioning structure is arranged on the inner side of at least one side panel assembly, and the positioning structure is used to fix the connecting piece 17; the two tensioning assemblies can move the two side panel assemblies toward each other until the connecting piece 17 is pressed onto the pole of the battery 1, and the side panel assemblies are provided with an operating hole 8 at a position corresponding to the connecting piece 17.

[0033] Specifically, in this embodiment, two side panel assemblies and two tensioning assemblies are enclosed to form a storage area 2 in which the battery 1 can be placed. In practical applications, a module composed of multiple batteries 1 can be placed in the storage area 2. Through the tensioning effect of the tensioning assembly on the two side panel assemblies, the connecting piece 17 fixed on the inner side of the side panel assembly through the positioning structure can be pressed on the pole of the battery 1, thereby achieving the fixation and positioning of the connecting piece 17 relative to the pole of the battery 1, and facilitating the subsequent welding connection of each battery 1 through the connecting piece 17. Among them, when welding the connecting piece 17 and the pole, it can be done through the operating hole 8 reserved on the side panel assembly. The fixation of the battery can be achieved by setting a fixing bracket in the storage area or other methods, and the present utility model does not limit this.

[0034] In the above structure, the positioning structure can fix the connecting piece 17 on the inner side of the side plate assembly, and make the position of the connecting piece 17 relative to the position of the battery 1 pole. In the process of the tensioning assembly pulling the two side plates to move toward each other, the purpose of pressing the connecting piece 17 on the battery 1 pole is achieved. It has a simple structure and high applicability. In particular, it is applied to the welding process of the pole of the cascade battery 1 and the connecting piece 17 through-welding. There is no need to increase the material for opening the mold to fix the connecting piece 17, which improves the assembly efficiency of the battery 1 and reduces the production cost. Among them, the number of positioning structures can be designed according to actual needs, and can usually be designed to match the number of connecting pieces 17 required by the battery 1 module, so as to achieve the purpose of assembling multiple batteries 1 into one module, further improving the welding and assembly efficiency of the battery 1 module.

[0035] In addition, a positioning structure is provided on at least one side plate assembly, and the positioning structure may be provided on only one side plate assembly to weld one end of the battery 1. Positioning structures may also be provided on both side plates to facilitate welding of both ends of the battery 1, without the need to perform a reversing operation on the battery 1 during welding, thereby further improving welding efficiency.

[0036] Alternatively, if Figure 1 to Figure 2As shown, the side plate assembly includes a fixed plate 3 and a clamping plate 4, the fixed plate 3 is assembled on the inner side of the clamping plate 4, the positioning structure is arranged on the fixed plate 3, and the two tensioning assemblies are respectively connected to the two ends of the two clamping plates 4 and can make the two clamping plates 4 move toward each other.

[0037] Specifically, in this embodiment, the side plate assembly is provided with a fixing plate 3 and a clamping plate 4. By providing a positioning structure on the fixing plate 3, the connecting piece 17 can be fixed on the fixing plate 3, and the two ends of the clamping plate 4 are respectively connected to the tensioning assembly, so that the tensioning assembly can pull the two clamping plates 4 to move toward each other, thereby moving the fixing plate 3 toward the accommodating area 2. When the accommodating area 2 is placed with a battery 1, after the fixing plate 3 moves to the set position, the connecting piece 17 can be pressed against the pole of the battery 1.

[0038] In the above structure, the fixing plate 3 for fixing the connecting piece 17 and the pressing plate 4 for pressing the connecting piece 17 are arranged in the form of separate bodies. On the one hand, the pressing force of the pressing plate 4 on each connecting piece 17 is more uniform, which avoids too much force on both ends of the fixing plate 3, resulting in a gap between the middle connecting piece 17 and the corresponding pole, thereby improving the welding quality. On the other hand, it is convenient for the processing of the positioning structure and the connection between the side panel assembly and the tensioning assembly, thereby improving the assembly efficiency of the clamping tooling. In addition, in actual applications, for different types of battery cells, the required form of the connecting piece 17 may be different. The positioning structure is arranged on a separate fixing plate 3, which is convenient for replacement and processing to adapt to more battery 1 models.

[0039] Alternatively, if Figure 2 or Figure 4 As shown, the positioning structure includes a positioning groove 5, and the positioning groove 5 is used to place the connecting piece 17 and enable the position of the connecting piece 17 to be opposite to the pole.

[0040] Specifically, in this embodiment, a positioning groove 5 is provided on the fixing plate 3, and the position of the positioning groove 5 is opposite to the pole of the battery cell. In practical applications, the shape of the positioning groove 5 can be designed to match the shape of the connecting piece 17, so as to facilitate the assembly of the connecting piece 17 on the fixing plate 3 and prevent the connecting piece 17 from being installed incorrectly, thereby preventing a mistake and short circuit from occurring and improving the safety of welding.

[0041] Alternatively, if Figure 2 or Figure 4 As shown, the positioning structure further includes a positioning pin 6, which is disposed in the positioning groove 5. The positioning pin 6 is used to pass through the connecting piece 17 so that the connecting piece 17 can be opposite to the center of the pole.

[0042] Specifically, in this embodiment, a positioning pin 6 is provided in the positioning groove 5, which can position and fix the connecting piece 17, further improving the accuracy of the installation of the connecting piece 17. In addition, in the actual assembly process, the connecting piece 17 can be prevented from falling from the positioning groove 5, thereby improving the reliability of assembly. The number and specific positions of the positioning pins 6 can be designed according to actual needs, and the utility model does not limit this.

[0043] Alternatively, if Figures 1 to 4 As shown, a plurality of positioning structures are arranged at intervals along the length direction of the fixing plate 3 .

[0044] Specifically, in this embodiment, a plurality of positioning structures are provided along the length direction of the fixing plate 3, so that a plurality of connecting pieces 17 can be fixed on the fixing plate 3, thereby improving welding efficiency and the number of batteries 1 assembled in the battery 1 module.

[0045] Alternatively, if Figures 1 to 4 As shown, the side plate assembly also includes a compression sleeve 7 with a center hole, and a first through hole 15 and a second through hole 16 are respectively provided on the fixed plate 3 and the compression plate 4. The compression sleeve 7 is assembled in the first through hole 15, and one end thereof can pass through the second through hole 16 and be pressed on the connecting plate 17, and the center hole forms an operating hole 8.

[0046] Specifically, in practical applications, such as welding of second-life batteries 1, since the battery 1 will undergo certain deformation after use, resulting in poor flatness of the pole, the setting of the clamping sleeve 7 enables each connecting piece 17 to be pressed against the corresponding pole, thereby improving the reliability of welding between the connecting piece 17 and the pole. In addition, the center hole of the clamping sleeve 7 forms an operating hole 8, which can simplify the structure of the side plate assembly on the one hand, and facilitate the welding operation between the connecting piece 17 and the pole on the other hand. In practical applications, the connecting piece 17 and the pole are usually welded by laser welding, and the temperature of laser welding is relatively high, so the clamping sleeve 7 can be made of copper material. Since copper has good thermal conductivity, it can quickly release the heat generated by laser welding, thereby improving the safety of welding.

[0047] Alternatively, if Figures 1 to 4 As shown, the compression sleeve 7 includes a first connecting member, an elastic member and a second connecting member, the two ends of the elastic member are respectively connected to the first connecting member and the second connecting member, and the first connecting member is assembled in the first through hole 15 so that a part of the second connecting member can pass through the fixing plate 3 and be pressed onto the connecting piece 17.

[0048] Specifically, in this embodiment, the elastic member is provided so that the connecting piece 17 can be pressed against the pole and the pressing force can be adjusted, which ensures that there is no gap at the welding position and improves the welding quality, while avoiding damage to the battery 1 or the connecting piece 17 caused by excessive pressing force.

[0049] Alternatively, if Figures 1 to 4 As shown, the side plate assembly also includes a linear bearing 9, and the fixing plate 3 is movably assembled on the pressing plate 4 through the linear bearing 9, so as to facilitate the assembly of the connecting piece 17 on the fixing plate 3.

[0050] Alternatively, if Figures 1 to 4 As shown, the tensioning assembly includes a first side pull plate 10, a second side pull plate 11 and a quick clamp 12. One end of the first side pull plate 10 and the second side pull plate 11 are respectively connected to the two side plate assemblies, and the other end is respectively connected to the quick clamp 12; the quick clamp 12 is suitable for moving the two side plate assemblies toward each other to a set position through the first side pull plate 10 and the second side pull plate 11.

[0051] Specifically, in this embodiment, the quick clamp 12 can tighten the first side pull plate 10 and the second side pull plate 11, so that the two side plate assemblies can be pressed tightly on both ends of the battery 1, and the purpose of pressing the connecting piece 17 on the pole of the battery 1 is achieved. The setting of the quick clamp 12 allows the clamping tool to quickly fix and position the battery 1 module and the connecting piece 17 after they are in place, which simplifies the operation steps and improves the welding production efficiency.

[0052] Alternatively, if Figures 1 to 4 As shown, it also includes a first leg 13 and a second leg 14. The first leg 13 is used to support the side plate assembly, and the second leg 14 is used to support the tensioning assembly to keep the clamping tool balanced.

[0053] Specifically, in actual applications, the side plate assembly has a relatively high size due to the placement of the connecting piece 17 and the parts for positioning or pressing the connecting piece 17, while the first side pull plate 10 and the second side pull plate 11 have fewer parts, and usually only need to arrange the quick clamp 12, so the size of the side plate assembly is set relatively low to reduce the overall weight and production cost of the entire clamping tool. The arrangement of the first leg 13 and the second leg 14 enables the bottom ends of the side plate assembly and the tensioning assembly of different heights to be on the same horizontal plane, thereby improving the stability of the entire clamping tool and facilitating welding operations.

[0054] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0055] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A clamping tool, used for battery welding, characterized in that: include: Two side plate assemblies and two tensioning assemblies respectively arranged at two ends of the two side plate assemblies; The two side plate assemblies and the two tensioning assemblies enclose a receiving area, the receiving area is used to place the battery, and a positioning structure is provided on the inner side of at least one of the side plate assemblies, the positioning structure is used to fix the connecting sheet; The two tensioning assemblies can move the two side plate assemblies toward each other until the connecting piece is pressed onto the pole of the battery, and the side plate assemblies are provided with operating holes at positions corresponding to the connecting pieces.

2. The clamping tool according to claim 1, characterized in that: The side plate assembly includes a fixed plate and a clamping plate, the fixed plate is assembled on the inner side of the clamping plate, the positioning structure is arranged on the fixed plate, and the two tensioning assemblies are respectively connected to the two ends of the two clamping plates and can make the two clamping plates move toward each other.

3. The clamping tool according to claim 2, characterized in that: The positioning structure comprises a positioning groove, and the positioning groove is used to place the connecting piece and enable the position of the connecting piece to be opposite to the pole.

4. The clamping tool according to claim 3, characterized in that: The positioning structure further includes a positioning pin, which is disposed in the positioning groove and is used to pass through the connecting piece so that the connecting piece can be opposite to the center of the pole.

5. The clamping tool according to claim 2, characterized in that: A plurality of positioning structures are arranged at intervals along the length direction of the fixing plate.

6. The clamping tool according to claim 2, characterized in that: The side plate assembly also includes a compression sleeve with a center hole. The fixed plate and the compression plate are respectively provided with a first through hole and a second through hole. The compression sleeve is fitted in the first through hole, and one end of the compression sleeve can pass through the second through hole and be pressed onto the connecting plate. The center hole forms the operating hole.

7. The clamping tool according to claim 6, characterized in that: The compression sleeve includes a first connecting member, an elastic member and a second connecting member, the two ends of the elastic member are respectively connected to the first connecting member and the second connecting member, the first connecting member is assembled in the first through hole, so that a part of the second connecting member can pass through the fixing plate and be pressed onto the connecting sheet.

8. The clamping tool according to claim 2, characterized in that: The side plate assembly also includes a linear bearing, and the fixing plate is movably assembled on the clamping plate through the linear bearing.

9. The clamping tool according to claim 1, characterized in that: The tensioning assembly comprises a first side pull plate, a second side pull plate and a quick clamp, wherein one end of the first side pull plate and the second side pull plate are respectively connected to the two side plate assemblies, and the other end is respectively connected to the quick clamp; The quick clamp is suitable for moving the two side plate assemblies toward each other to a set position through the first side pull plate and the second side pull plate.

10. The clamping tool according to claim 1, characterized in that: It also includes a first leg and a second leg, wherein the first leg is used to support the side plate assembly, and the second leg is used to support the tensioning assembly to keep the clamping tool balanced.

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