Automatic protection plate bending equipment for battery cell
By combining the pre-bending mechanism and the pressure bending mechanism, the problems of skewing and tab breakage during the bending process of the battery cell protection board are solved, achieving high-precision bending and high pass rate of the protection board, and reducing production costs.
Patent Information
- Application Number
- CN202423191554.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing cell protection board bending equipment is prone to skewed protection boards or broken tabs during automation, resulting in high defect rates and increased production costs.
The pre-bending mechanism, including a positioning fork module and a support pre-bending module, forms a precise bending line through the cooperation of the fork and the support block. Combined with the pressure bending mechanism, it ensures that the protective plate is accurately bent under the action of vertical limit and push block.
This improved the accuracy and pass rate of protective plate bending, reduced the number of defective products, and lowered production costs.
Smart Images
Figure CN223556929U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of protection plate bending processing, specifically relates to a kind of automatic bending protection equipment of electric core. BACKGROUND
[0002] In the preparation process of battery, the process of bending the protection plate of electric core is usually involved, which aims to make the protection plate adhere more closely to the electric core, reduce looseness caused by vibration or impact, and thus improve the stability and reliability of the whole battery. At the same time, it can also make more effective use of the space inside the battery, making the battery structure more compact and improving the energy density of the battery, thereby prolonging the use time of the battery or improving the endurance of the equipment. As can be seen, the bending of the protection plate of electric core is of great significance to the quality of the battery.
[0003] In the current bending process of the protection plate of electric core, automation has been mostly realized, but there are still problems of poor bending of the protection plate of electric core. Since the structure of the protection plate of electric core is small, the requirement for the process of bending the protection plate of electric core is higher. In the current automatic bending equipment of the protection plate of electric core, the protection plate is prone to be skewed during bending due to the excessive complexity or unreasonable design of the bending mechanism of the protection plate, and even the internal tab of the electric core is broken, resulting in defective products and increasing the production cost.
[0004] In summary, it is of great significance to provide a protection plate bending equipment that improves yield for the personnel in the technical field. INVENTION CONTENTS
[0005] In order to solve the problems of the prior art, the utility model provides an automatic bending protection plate equipment of electric core, which improves the accuracy of bending by forming a bending line through pre-bending, and optimizes the pre-bending mechanism to improve the quality and yield of the bending of the protection plate.
[0006] The technical effects achieved by the utility model are realized through the following technical aspects:
[0007] In a first aspect, the utility model provides an automatic bending protection plate equipment of electric core, comprising
[0008] The pre-bending mechanism comprises a positioning fork knife module and a supporting pre-bending module. The positioning fork knife module comprises a first vertical moving assembly and a fork knife for positioning the bending line of the protection plate. The fork knife moves closer to or further away from the protection plate under the action of the first vertical moving assembly. The supporting pre-bending module comprises a rotating assembly and a supporting block for abutting against the lower part of the protection plate. The supporting block rotates under the action of the rotating assembly to pre-bend the protection plate.
[0009] The press-bending mechanism comprises a push block module and a vertical limiting module for limiting the protective plate in the vertical direction.
[0010] Preferably, the battery cell clamp mechanism further comprises a battery cell clamp for fixing the battery cell, and the battery cell clamp mechanism is movable between the pre-bending mechanism and the press-bending mechanism.
[0011] Preferably, the forked knife comprises a base and a positioning portion extending from the bottom of the base, and the positioning portion has a wedge structure.
[0012] Preferably, the positioning portion is provided with a pre-bending surface away from the battery cell clamp mechanism, the pre-bending surface is inclined from the base towards the battery cell clamp mechanism, and a pre-bending angle is formed on the side away from the battery cell clamp mechanism, and the pre-bending angle is 30-80°.
[0013] Preferably, the positioning portion is provided with a reference surface on the side close to the battery cell clamp mechanism, and the reference surface is matched with the side of the battery cell provided with the protective plate.
[0014] Preferably, the support pre-bending module further comprises a second vertical moving assembly, the second vertical moving assembly is movably connected with the rotating assembly, the second vertical moving assembly drives the rotating assembly to move in the vertical direction, and the support block is connected with the rotating assembly.
[0015] Preferably, the vertical limiting module comprises an upper limiting assembly and a lower limiting assembly, and the upper limiting assembly and the lower limiting assembly are respectively provided with an upper limiting block and a lower limiting block.
[0016] Preferably, the upper limiting assembly further comprises a first buffer connected with the upper limiting block.
[0017] Preferably, the push block is connected with a second buffer.
[0018] Preferably, the rotating assembly comprises a rotating driving member and a connecting member, the output end of the rotating driving member is provided with a rotating shaft, and the output end of the rotating driving member is connected with the support block through the connecting member, so that the support block rotates around the rotating shaft.
[0019] The utility model provides a kind of automatic bending protection plate equipment of electric core, the accuracy of bending is improved by pre-bending to form bending line, and the pre-bending mechanism is optimized, to improve the quality and pass rate of protection plate bending. Specifically, the pre-bending mechanism includes fork knife module for positioning the positioning of protection plate bending line and the support pre-bending module for pre-bending protection plate. Among them, the support pre-bending module includes rotating assembly and support block for abutting with the lower protection plate. Support block gives consideration to the function of protection plate preliminary positioning and preliminary bending, which is beneficial to improve the compactness of equipment. After support block preliminary positioning of protection plate, support block is rotated and cooperated with fork knife to bend protection plate along the bending line positioned by fork knife, which provides a basis for formal bending of subsequent protection plate, and avoids easy inclination of protection plate. The bending mechanism is limited by vertical limiting module to protection plate, and finally protection plate is bent by push block module. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the structure schematic drawing of pre-bending mechanism and electric core clamp mechanism of the utility model embodiment 1.
[0021] Figure 2 It is the side structure schematic drawing of pre-bending mechanism and electric core clamp mechanism cooperation of the utility model embodiment 1.
[0022] Figure 3 It is Figure 2 The structure enlarged schematic drawing of part A.
[0023] Figure 4 It is the structure schematic drawing of pre-bending mechanism and electric core clamp mechanism of the utility model embodiment 1.
[0024] Figure 5 It is the side structure schematic drawing of pre-bending mechanism and electric core clamp mechanism cooperation of the utility model embodiment 1.
[0025] Figure 6 It is Figure 5 The structure enlarged schematic drawing of part B.
[0026] Figure 7 It is the structure schematic drawing of support pre-bending module of the utility model embodiment 1.
[0027] Figure 8 It is the structure schematic drawing of pre-bending mechanism of the utility model embodiment 1.
[0028] Figure 9 It is the structure schematic drawing of support pre-bending module of the utility model embodiment 2.
[0029] Figure 10 It is the structure schematic drawing of bending mechanism of the utility model embodiment 3.
[0030] Marked in the figure:
[0031] 100, pre-bending mechanism; 200, bending mechanism; 300, cell clamp mechanism; 400, protection plate; 500, cell;
[0032] 10, positioning fork knife module; 11, first vertical moving assembly; 12, fork knife; 121, base; 122, positioning part; 123, pre-bending surface; 124, reference surface;
[0033] 20, support pre-bending module; 21, support block; 22, rotating assembly; 221, connecting piece; 223, rotating driving piece; 23, second vertical moving assembly;
[0034] 30, push block module; 31, push block; 32, horizontal moving module; 321, horizontal moving cylinder.
[0035] 40, vertical limiting module; 41, upper limiting assembly; 42, lower limiting assembly; 411, upper limiting block; 421, lower limiting block; DETAILED DESCRIPTION
[0036] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings and specific embodiments. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0037] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element.
[0038] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.
[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.
[0040] Embodiment 1:
[0041] Please refer to the accompanying Figures 1-8 The present embodiment provides an automatic bending protection plate equipment for battery cell, a pre-bending mechanism 100 and a pressing bending mechanism 200. The automatic bending protection plate equipment for battery cell improves the accuracy of bending by forming a bending line through pre-bending, and optimizes the structure of the pre-bending mechanism 100 to improve the quality and the pass rate of the bending of the protection plate 400.
[0042] Specifically, the pre-bending mechanism 100 includes a positioning fork knife module 10 for determining the bending line on the protection plate 400 and a supporting pre-bending module 20 for preliminarily bending the protection plate 400. The positioning fork knife module 10 includes a first vertical moving assembly 11 and a fork knife 12 for positioning the bending line of the protection plate 400, and the fork knife 12 moves close to or away from the protection plate 400 under the action of the first vertical moving assembly 11. The supporting pre-bending module 20 includes a rotating assembly 22 and a supporting block 21 for abutting against the lower side of the protection plate 400, and the supporting block 21 rotates under the action of the rotating assembly 22 to pre-bend the protection plate 400.
[0043] It needs to be particularly pointed out that in the present embodiment, the positioning fork knife module 10 and the supporting pre-bending module 20 are arranged side by side. Meanwhile, the automatic bending protection plate equipment for battery cell further includes a battery cell clamp mechanism 300 for fixing the battery cell 500. The battery cell clamp mechanism 300 is movable between the pre-bending mechanism 100 and the pressing bending mechanism 200 to realize pre-bending and formal bending of the protection plate 400 on the battery cell 500, and the side of the battery cell 500 provided with the protection plate 400 sequentially faces the pre-bending mechanism 100 and the pressing bending mechanism 200 during work.
[0044] During work, the supporting block 21 is located below the protection plate 400 and abuts against the protection plate 400. The fork knife 12 is located above the protection plate 400, and then the fork knife 12 moves to the protection plate 400 and abuts against the protection plate 400, thereby positioning the bending line on the protection plate 400. In this state, the rotating assembly 22 drives the supporting block 21 to rotate towards the direction where the fork knife 12 is located, and in this process, the protection plate 400 is rotated with the bending line as the axis, thereby preliminarily bending the bending line and forming the bending line to avoid the possibility of skewing during subsequent bending of the protection plate 400.
[0045] The rotating assembly 22 comprises a rotating driving member 223 and a connecting member 221. The output end of the rotating driving member 223 is provided with a rotating shaft. The rotating shaft is connected with the connecting member 221 and connected with the supporting block 21 through the connecting member 221. The rotating shaft is parallel to the extending direction of the whole protection plate 400. In the initial state, the supporting block 21 abuts against the lower side of the protection plate 400. After the fork blade 12 is positioned to the bending line, the supporting block 21 is rotated around the rotating shaft under the driving of the rotating driving member 223 and the connecting member 221, so that the protection plate 400 is bent around the bending line towards the direction where the fork blade 12 is located, and a pre-bending trace is formed on the protection plate 400.
[0046] After the bending line is preliminarily formed, the battery cell clamp mechanism 300 is moved to the press-bending mechanism 200. The press-bending mechanism 200 comprises a push block module 30 for bending the protection plate 400 along the bending line and a vertical limiting module 40 for limiting the protection plate 400 in the vertical direction. The push block module 30 comprises a push block 31 moving in the direction of the protection plate 400 and the battery cell body and a horizontal moving module 32. During operation, the vertical limiting module 40 is close to the protection plate 400 and limits the upper side and the lower side of the protection plate 400. The vertical limiting module 40 is provided with a space for the movement of the push block 31. Since the protection plate 400 has been pre-bent, the protection plate 400 presents a pre-bending angle relative to the battery cell body under the limiting action of the vertical limiting module 40, which facilitates the further bending of the push block 31. With the advance of the push block 31, the protection plate 400 is bent along the bending line and adheres to the battery cell 500.
[0047] It should be particularly pointed out that preferably, the fork blade 12 comprises a base 121 and a positioning part 122 extending from the bottom of the base 121. The positioning part 122 is in a wedge-shaped structure, and the end thereof is in a linear structure, so as to be linearly abutted against the protection plate 400, thereby realizing the positioning of the bending line.
[0048] Further, the side of the positioning part 122 away from the battery cell clamp mechanism 300 is a pre-bending surface 123. The pre-bending surface 123 is inclined from the base 121 towards the battery cell clamp mechanism 300 and forms a pre-bending angle with the horizontal plane. With the supporting block 21 driving the protection plate 400 to bend along the bending line towards the positioning part 122, the protection plate 400 gradually approaches the pre-bending surface 123, thereby positioning the pre-bending. It should be noted that a small pre-bending angle is not conducive to the bending of the push block 31, and even the damage of the protection plate 400 may occur. A too large pre-bending angle requires a higher requirement for the fork blade 12, and the protection plate 400 is easy to be damaged at the bending line. Therefore, preferably, the pre-bending angle is 30°-80°. It should be noted that the pre-bending angle refers to the included angle between the side of the pre-bending surface 123 away from the battery cell clamp mechanism 300 and the horizontal plane.
[0049] In some embodiments, in order to improve the accuracy of the positioning of the fork knife 12, the positioning part 122 is further provided with a reference surface 124 on the side close to the battery cell clamp mechanism 300, which is matched with the side of the battery cell 500 provided with the protective plate 400. In this embodiment, the reference surface 124 is arranged in the vertical direction. When the fork knife 12 abuts against the protective plate 400, the reference surface 124 is close to or abuts against the end surface of the battery cell 500 provided with the protective plate 400, so as to form a reference, and ensure that the position of the bending line is uniform.
[0050] Embodiment 2:
[0051] The difference between this embodiment and embodiment 1 is that the battery cell automatic protective plate bending equipment of the utility model is further optimized in structure in this embodiment, and the same parts please refer to embodiment 1.
[0052] The improvements will be described below, please refer to Figure 9 .
[0053] The support pre-bending module 20 further comprises a second vertical moving assembly 23, and the second vertical moving assembly 23 is movably connected with the rotating assembly 22. The rotating assembly 22 and the support block 21 connected with the rotating assembly 22 move in the vertical direction under the action of the second vertical moving assembly 23. When the battery cell 500 to be bent by the protective plate 400 moves to the front of the pre-bending mechanism 100, the support block 21 moves upward under the action of the second vertical moving assembly 23 until abutting against the lower side of the protective plate 400. After the rotation of the support block 21 is completed, the support block 21 rotates under the action of the rotating assembly 22, and then moves downward under the action of the second vertical moving assembly 23 to return to the initial waiting position. The second vertical moving assembly 23 is provided to provide a displacement for the movement of the battery cell clamp mechanism 300, and also facilitate the support block 21 to match with the protective plate 400 of different sizes or different height positions, and improve the universality.
[0054] Of course, in other embodiments, the support pre-bending module 20 can also be provided with a moving module in other directions, so that the rotating assembly 22 and the support block 21 can move in three-dimensional directions, and the accuracy of positioning and rotating the protective plate 400 is improved.
[0055] Embodiment 3:
[0056] The difference between this embodiment and embodiment 1 is that the battery cell automatic protective plate bending equipment of the utility model is further optimized in structure in this embodiment, and the same parts please refer to embodiment 1.
[0057] The improvements will be described below, please refer to Figure 9The vertical limiting module 40 preferably comprises an upper limiting assembly 41 and a lower limiting assembly 42. The upper limiting assembly 41 and the lower limiting assembly 42 respectively comprise an upper limiting block 411 and a lower limiting block 421 which can approach or move away from the protection plate 400. The upper limiting block 411 and the lower limiting block 421 function to limit the position of the protection plate 400. In particular, as the lower limiting block 421 approaches the protection plate 400, the protection plate 400 is easily kept at a certain bending angle due to the presence of the bending line, thereby facilitating the bending of the push block 31.
[0058] Preferably, in order to further improve the bending quality of the protection plate 400 and avoid damage to the protection plate 400 during the bending process, the upper limiting assembly 41 further comprises a first buffer connected with the upper limiting block 411. The first buffer can be a spring. In the embodiment, the first buffer is connected with a cylinder which controls the movement of the upper limiting block 411. The purpose is to reduce the bending or other damage of the protection plate 400 under the action of the upper limiting block 411 above the protection plate 400.
[0059] Similarly, the horizontal movement module 32 in the push block module 30 comprises a horizontal movement cylinder 321. The horizontal movement cylinder 321 is connected with the push block 31. The horizontal movement cylinder 321 is provided with a second buffer, which can be a spring. The purpose is to avoid the damage of the protection plate 400 due to the excessive force of the push block 31 on the protection plate 400. It can be understood that in some embodiments, a flexible silica gel pad or other protective pad with buffering effect can also be added at the end of the push block 31 in contact with the protection plate 400.
[0060] It should be noted that in the embodiment, the lower limiting block 421 and the protection plate 400 are preferably hard connected.
[0061] The above is only an example and description of the structure of the utility model, which is described in detail, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, and these obvious alternative forms belong to the protection scope of the utility model.
Claims
1. A battery cell automatic bending protection board device, characterized in that, The application relates to a protection plate bending device. The device comprises a pre-bending mechanism, a bending mechanism and a cell clamp mechanism. The pre-bending mechanism comprises a positioning fork knife module and a supporting pre-bending module.
2. The battery cell automatic bending protector apparatus according to claim 1, wherein The positioning fork knife module comprises a first vertical moving assembly and a fork knife for positioning a protection plate bending line.
3. The battery cell automatic bending protector apparatus according to claim 2, wherein The supporting pre-bending module comprises a rotating assembly and a supporting block for abutting against the lower side of the protection plate.
4. The battery cell automatic bending protector apparatus according to claim 3, wherein The bending mechanism comprises a push block module and a vertical limiting module for limiting the protection plate in the vertical direction.
5. The battery cell automatic bending protector apparatus according to claim 4, wherein, The cell clamp mechanism comprises a cell clamp for fixing a cell.
6. The battery cell automatic bending protector apparatus of claim 1, wherein, The fork knife comprises a base and a positioning part extended from the bottom of the base.
7. The battery cell automatic bending protector apparatus of claim 1, wherein, The positioning part is in a wedge structure.
8. The battery cell automatic bending protector apparatus according to claim 7, wherein, The positioning part is provided with a pre-bending surface away from the cell clamp mechanism.
9. The battery cell automatic bending protector apparatus of claim 1, wherein, The pre-bending surface is inclined from the base to the cell clamp mechanism and forms a pre-bending angle with the horizontal surface.
10. The battery cell automatic bending protector apparatus of claim 1, wherein, The pre-bending angle is formed on the side away from the cell clamp mechanism and is 30-80 degrees. The positioning part is provided with a reference surface on the side close to the cell clamp mechanism. The reference surface is matched with the side of the cell provided with the protection plate. The supporting pre-bending module further comprises a second vertical moving assembly. The second vertical moving assembly is movably connected with the rotating assembly. The second vertical moving assembly drives the rotating assembly to move in the vertical direction and drives the supporting block. The vertical limiting module comprises an upper limiting assembly and a lower limiting assembly. The upper limiting assembly and the lower limiting assembly are respectively provided with an upper limiting block and a lower limiting block. The upper limiting assembly further comprises a first buffer connected with the upper limiting block. The push block is connected with a second buffer. The rotating assembly comprises a rotating driving part and a connecting part. The output end of the rotating driving part is provided with a rotating shaft. The output end of the rotating driving part is connected with the supporting block through the connecting part. The supporting block rotates around the rotating shaft.