Battery module extrusion tool

Abstract

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to a battery module extrusion tool which comprises an end face mounting plate and an adjustable positioning mechanism mounted on the end face mounting plate, and the adjustable positioning mechanism comprises a mounting part and an adjusting part; the mounting part is used for positioning an end plate of a servo pressure device of a stacking extruder or an end part / end surface assembly of an existing extrusion tool; and the adjusting part is used for adjusting the mounting part in the width and height directions, so that the mounting part can be fixed on an end plate of a servo pressure device of a stacking extruder or an end part / end surface assembly of an existing extrusion tool. According to the device, the high-adaptability matching of the extrusion tool to different types of battery modules or different specifications of end plates of the same type of battery modules is realized through the adjusting bolts, the adjusting pressing plates, the adjusting blocks and the like, the inconvenience of disassembly and remodeling is avoided, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of lithium-ion battery technology, specifically relating to a battery module extrusion tooling. Background Technology

[0002] During battery module assembly, extrusion shaping is required to ensure the neat alignment of each cell, facilitating consistent welding, maintaining optimal stress distribution for each cell, and extending the battery module's lifespan. When extruding battery modules, tooling is typically used to limit the two sides of the module before extruding to complete the assembly. Therefore, extrusion tooling is indispensable.

[0003] Existing extrusion fixtures are mostly suitable for a specific size of battery module or a specific size of module end plate. When the width or height of the battery module to be extruded changes, or when the same size battery module needs to be adapted to different size end plates, it is necessary to remake or switch to other suitable fixtures. This is inconvenient for disassembly and redesign, has poor adaptability and flexibility, and is time-consuming and labor-intensive, affecting production efficiency. Therefore, there is an urgent need to develop an adjustable and highly adaptable battery module extrusion fixture. Utility Model Content

[0004] The purpose of this utility model is to provide a battery module extrusion fixture. This fixture can be installed independently on the end plate of the servo pressure device in the length direction of an existing stacking extrusion press to adapt to changes in the height and width of the battery module or module end plate. It can also be installed in conjunction with the end extrusion assembly or end face pressure plate assembly of an existing extrusion fixture to increase the adjustable dimensions in the height and width directions, improve the adjustable matching with end plates of different sizes and specifications of modules, and thus improve the adaptability and flexibility in the production process.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a battery module extrusion fixture, including an end face mounting plate and an adjustable positioning mechanism mounted on the end face mounting plate. The adjustable positioning mechanism includes a mounting component and an adjusting component. The mounting component is used to position the mounting component with the end plate of the servo pressure device of the stacking extruder or the end / end face assembly of an existing extrusion fixture. The adjusting component is used to adjust the mounting component in the width and height directions to fix the mounting component on the end plate of the servo pressure device of the stacking extruder or the end / end face assembly of an existing extrusion fixture.

[0007] Preferably, the mounting component includes an end plate positioning pin and an adjusting block. The end plate positioning pin is fixed in the middle of the adjusting block and is used to be inserted into the positioning hole of the end plate of the servo pressure device of the stacking extruder or the end / end face assembly of an existing extrusion fixture.

[0008] Preferably, the adjusting component comprises a lateral adjusting plate, a longitudinal adjusting plate, a lateral adjusting bolt and a longitudinal adjusting bolt, the lateral adjusting plate is located at the side of the adjusting block and is fixed on the end face mounting plate, the lateral adjusting bolt is screwed with the side of the adjusting block through the lateral adjusting plate, the longitudinal adjusting plate is located at the upper side of the adjusting block and is fixed on the end face mounting plate, and the longitudinal adjusting bolt is screwed with the upper side of the adjusting block through the longitudinal adjusting plate.

[0009] Preferably, the two sides of the end face mounting plate are respectively provided with a positioning pin hole and a fixing screw hole.

[0010] Preferably, the end face mounting plate is provided with two installation grooves, and the adjustable positioning mechanism is installed in the installation grooves.

[0011] Preferably, the two sides of the installation groove are respectively provided with a pressing block.

[0012] Preferably, the pressing block is integrally formed with the end face mounting plate.

[0013] Preferably, the upper part of the end face mounting plate is provided with a sink, and the longitudinal adjusting bolt is located in the sink.

[0014] Preferably, the adjusting block is provided with a bolt hole.

[0015] Preferably, the adjustable positioning mechanism is two sets.

[0016] The utility model discloses the beneficial effect is:

[0017] The extrusion tool of the utility model through the cooperation of adjusting bolt, adjusting plate and adjusting block etc. component, can realize the height adaptability matching of different model battery module or same model battery module different specification end plate. When facing the size change of battery module or end plate, need not to make or frequently switch tooling again, avoided the inconvenience of dismounting and changing type, significantly improved production efficiency, reduced production cost.

[0018] The tooling can more accurately extrude the battery module. Through the accurate adjustment in the width and height direction, the situation that the tooling extrusion center and the cell center do not match can be effectively avoided, the damage to the battery module caused by improper extrusion is reduced, and the production quality of the battery module is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 It is the perspective view of the utility model;

[0021] Figure 3 is a right view of the present utility model;

[0022] Figure 4 is a top view of the present utility model;

[0023] Figure 5 is an application schematic view of the present utility model;

[0024] Figure 6 is a perspective view of the end plate of the servo pressure device of the stack extruder in the present utility model;

[0025] The drawings are described as follows:

[0026] 1, end face mounting plate; 11, sink groove; 2, adjustable positioning mechanism; 20, pressing block; 21, end plate positioning pin; 22, adjusting block; 221, bolt hole; 23, transverse adjusting pressing plate; 24, longitudinal adjusting pressing plate; 25, transverse adjusting bolt; 26, longitudinal adjusting bolt; 27, positioning pin hole; 28, fixed screw hole; 29, mounting groove; 3, end plate of servo pressure device of stack extruder; 31, positioning hole. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present utility model creation and the features in the embodiments can be combined with each other without conflict.

[0028] In the description of the present utility model creation, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the drawings shown, and is only for the convenience of describing the present utility model creation and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model creation. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present utility model creation, unless otherwise specified, the meaning of "multiple" is two or more.

[0029] In the description of the utility model, it needs to be explained that, unless otherwise explicitly provided and limited, the terms "mounting", "connection", "connecting", "fixing", "fixed connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0030] The specific embodiments of the utility model are described in detail below in combination with the accompanying Figure 1 The specific embodiments of the utility model are described in detail below in combination with the accompanying

[0031] In the actual production workshop of the battery module, the extrusion tool is applied to the extrusion operation of the battery module. First, in the face of different models of battery modules or different specifications of the end plate of the stacking extruder servo pressure device of the same model, the tool needs to be adjusted. At this time, the adjustable positioning mechanism 2 plays a key role.

[0032] Taking a new model of battery module as an example, the distance between the two positioning holes 31 on the stacking extruder servo pressure device end plate 3 is different from the previous model. At this time, the operator adjusts the adjustable positioning mechanism 2 on the end face mounting plate 1 according to the distance between the two positioning holes on the stacking extruder servo pressure device end plate. The adjustable positioning mechanism 2 is two sets, each set includes mounting components and adjusting components, wherein the mounting components include end plate positioning pins 21 and adjusting blocks 22, and the adjusting components include horizontal adjusting plates 23, vertical adjusting plates 24, horizontal adjusting bolts 25 and vertical adjusting bolts 26. The end plate positioning pin 21 is fixed in the middle of the adjusting block 22 and is used to be inserted into the two positioning holes 31 on the stacking extruder servo pressure device end plate 3 to accurately position the stacking extruder servo pressure device end plate 3.

[0033] During the adjustment process, the horizontal adjusting plate 23 is located on the side of the adjusting block 22 and is fixed on the end face mounting plate 1, the horizontal adjusting plate 23 has a slot in the middle, the horizontal adjusting bolt 25 is threadedly connected with the side of the adjusting block 22 through the horizontal adjusting plate 23, and the horizontal adjusting bolt 25 has a nut. The operator first loosens the nut, so that the horizontal adjusting bolt 25 can slide in the slot, and then adjusts the position of the end plate positioning pin 21 in the horizontal direction by rotating the horizontal adjusting bolt 25 and moving the adjusting block 22 left and right.

[0034] Similarly, the longitudinal adjustment pressing plate 24 is located on the upper side of the adjustment block 22 and is fixed on the end face mounting plate 1, and the longitudinal adjustment pressing plate 24 also has a strip-shaped slot, the longitudinal adjustment bolt 26 is screwed with the upper side of the adjustment block 22 through the longitudinal adjustment pressing plate 24, and the longitudinal adjustment bolt 26 also has a nut. After adjusting the transverse position of the adjustment block 22, the nut on the transverse adjustment bolt 25 is not locked, and the transverse adjustment bolt 25 is kept in a state of being able to move in the strip-shaped slot. Then, the operator adjusts the longitudinal adjustment bolt 26 in the same way, moves the adjustment block 22 up and down by rotating the longitudinal adjustment bolt 26, and adjusts the position of the end plate positioning pin 21 in the longitudinal direction. After the longitudinal adjustment of the adjustment block 22 is completed, the nut on the transverse adjustment bolt 25 is locked, the position of the adjustment block 22 is fixed, and the position of the end plate positioning pin 21 is accurately ensured to meet the requirements of the battery module end plate positioning hole 31.

[0035] After adjusting the adjustable positioning mechanism 2, the end face mounting plate 1 is fastened and connected with the end plate 3 of the stacked extrusion machine servo pressure device or the end / end surface assembly of the existing extrusion tooling through the positioning pin holes 27 and the fixed screw holes 28 on both sides thereof. The positioning pin holes 27 can ensure the positional accuracy of the tooling during installation, and the fixed screw holes 28 firmly fix the tooling on the corresponding equipment through bolts, ensuring that the tooling does not shift during extrusion.

[0036] The end face mounting plate 1 is provided with two installation grooves 29, and the adjustable positioning mechanism 2 is installed in the installation grooves 29, respectively. The pressing blocks 20 are arranged on both sides of the installation grooves 29, and the pressing blocks 20 are integrally formed with the end face mounting plate 1. When the end plate positioning pin 21 is inserted into the through hole on the module end plate and the positioning of the module end plate is completed, the stacked extrusion machine servo pressure device is started. With the application of pressure, the pressing blocks 20 extrude the module end plate. Due to the integrally formed structure of the pressing blocks 20 and the end face mounting plate 1, the stability and accuracy during extrusion can be ensured, so that the battery module is accurately extruded, and damage to the battery module caused by mismatching of the tooling extrusion center and the cell center is avoided.

[0037] In addition, the upper part of the end face mounting plate 1 is provided with a sink 11, and the longitudinal adjustment bolt 26 is located in the sink 11. The design of the sink 11 not only provides installation space for the longitudinal adjustment bolt 26, but also better hides the longitudinal adjustment bolt 26 after adjustment, avoiding the protrusion affecting the overall structure of the tooling and the operation safety.

[0038] The adjusting block 22 is provided with four bolt holes 221, after the adjustment of the position of the adjusting block 22 is completed and the horizontal and longitudinal adjusting bolts 25, 26 are fixed, the operator uses the bolt to pass through the bolt hole 221, further fixes the adjusting block 22 on the end face mounting plate 1, so that the adjusting block 22 is fixed more firmly, prevents loosening in the extrusion process, and ensures the stability and reliability of the whole extrusion tool.

[0039] In the actual production process, the operator also regularly checks and maintains the tool. For example, whether the positioning pin hole 27 and the fixed screw hole 28 are worn is checked, if the wear affects the installation accuracy of the tool, the related parts need to be repaired or replaced in time; whether the threads of the horizontal and longitudinal adjusting bolts 25, 26 are damaged is checked, if the threads are damaged, the adjusting block 22 cannot be accurately adjusted, at this time, the adjusting bolts need to be replaced; whether the surface of the pressing block 20 is worn is checked, if the pressing block 20 is seriously worn, the extrusion effect on the battery module end plate can be affected, the pressing block 20 needs to be repaired or replaced.

[0040] For ordinary skilled persons in the technical field, without departing from the principle of the present application, a number of improvements and refinements can be made. For example, a buffer material is added between the adjusting block 22 and the end face mounting plate 1, further reducing the influence of vibration generated in the extrusion process on the battery module; a lubricant is applied to the surface of the end plate positioning pin 21, so that the positioning pin is more easily inserted into the positioning hole 31 of the module end plate, and the positioning efficiency is improved. These improvements and refinements should also be considered within the protection scope of the present application.

Claims

1. A battery module extrusion tooling, characterized by, The adjustable positioning mechanism comprises an end face mounting plate and an adjustable positioning mechanism mounted on the end face mounting plate, the adjustable positioning mechanism comprises a mounting part and an adjusting part; the mounting part is used for positioning with the end part / end face assembly of the end plate of the servo pressure device of the stacked extruder or the existing extrusion tooling; the adjusting part is used for adjusting the mounting part in the width and height directions, so as to fix the mounting part on the end plate of the servo pressure device of the stacked extruder or the end part / end face assembly of the existing extrusion tooling.

2. The battery module extrusion tooling of claim 1, wherein: The mounting part comprises an end plate positioning pin and an adjusting block, the end plate positioning pin is fixed in the middle of the adjusting block, and the end plate positioning pin is used for being inserted into the positioning hole of the end plate of the servo pressure device of the stacked extruder or the end part / end face assembly of the existing extrusion tooling.

3. The battery module extrusion tooling of claim 2, wherein: The adjusting part comprises a transverse adjusting plate, a longitudinal adjusting plate, a transverse adjusting bolt and a longitudinal adjusting bolt, the transverse adjusting plate is located on the side of the adjusting block and is fixed on the end face mounting plate, the transverse adjusting bolt is screwed with the side of the adjusting block through the transverse adjusting plate, the longitudinal adjusting plate is located on the upper side of the adjusting block and is fixed on the end face mounting plate, and the longitudinal adjusting bolt is screwed with the upper side of the adjusting block through the longitudinal adjusting plate.

4. The battery module extrusion tooling of claim 1, wherein: Both sides of the end face mounting plate are respectively provided with positioning pin holes and fixing screw holes.

5. The battery module extrusion tooling of claim 1, wherein: The end face mounting plate is provided with two mounting grooves, and the adjustable positioning mechanism is respectively mounted in the mounting grooves.

6. The battery module extrusion tooling of claim 5, wherein: Both sides of the mounting groove are respectively provided with pressing blocks.

7. The battery module extrusion tooling of claim 6, wherein: The pressing blocks are integrally formed with the end face mounting plate.

8. The battery module extrusion tooling of claim 3, wherein: The upper part of the end face mounting plate is provided with a sink, and the longitudinal adjusting bolt is located in the sink.

9. The battery module extrusion tooling of claim 2, wherein: The adjusting block is provided with a bolt hole.

10. The battery module extrusion tooling of claim 1, wherein: The adjustable positioning mechanism is two sets.

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