Milling clamping fixture

Abstract

The utility model discloses a kind of milling clamping tool jigs, comprising: positioning member and power drive assembly, positioning member is equipped with the reference positioning plane for the positioning of the milling piece to be milled, and the milling groove is arranged in the milling part of the milling piece to be milled relative to positioning member;Power drive assembly is connected with positioning member, it has several drive ends corresponding with reference positioning plane, and several drive ends can independently move relative to reference positioning plane, for driving the end face of the milling piece to be milled is pressed in reference positioning plane.This device can realize accurate clamping of battery cell, and adapt to irregular deformation of battery cell, improve the precision and stability of milling.

Description

Technical Field

[0001] This utility model relates to the field of power battery recycling technology, specifically to a milling clamping fixture. Background Technology

[0002] The rapid development of the new energy vehicle industry will inevitably lead to the rise of the retired power battery recycling industry, with secondary utilization being the mainstream treatment method for retired power batteries. The economic value generated by secondary utilization is far higher than that generated by directly scrapping battery cells, and in terms of environmental protection, the energy consumption and waste gas and waste liquid generated by secondary utilization are also far lower than those generated by recycling.

[0003] The patent with publication number CN220761109U provides a power battery milling and disassembly device, which includes: a clamping assembly, a flipping assembly, and a milling assembly. The clamping assembly includes a rotatable worktable and a clamping unit. The clamping unit includes a linear drive and an abutment. In use, the battery cell is placed between the abutments on the worktable. The linear drive can drive the abutments to move, so that at least two of the abutments move towards each other to abut and clamp the power battery. Then, the last side of the power battery is milled by the milling cutter of the robotic arm to disassemble and disperse the various modules of the entire power battery.

[0004] However, during disassembly, the bottom of the battery cell is prone to irregular deformation due to stress release within the internal materials or external mechanical forces. Current battery cell disassembly fixtures use rigid structures to fix the cells, which cannot accommodate these irregular deformations. This results in the cell's position not aligning with the milling reference surface, leading to uneven milling depth and potentially damaging internal electrodes or separators, thus affecting the yield of recycled materials. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a milling clamping fixture to solve the technical problems of uneven milling depth and damage to internal electrodes or diaphragms caused by irregular deformation of the battery cell during the disassembly process in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This utility model provides a milling clamping fixture, including: a positioning component and a power drive assembly. The positioning component has a reference positioning plane for positioning the workpiece to be milled, and the positioning component has a milling groove relative to the milling part of the workpiece to be milled. The power drive assembly is connected to the positioning component and has a plurality of driving ends corresponding to the reference positioning plane. The plurality of driving ends can move independently relative to the reference positioning plane and are used to drive the end face of the workpiece to be milled to press against the reference positioning plane.

[0007] In some embodiments, the cross-sectional area of ​​the milling groove is smaller than the cross-sectional area of ​​the end face of the workpiece to be milled, and its groove width is greater than the radial width of the milling position on the end face of the workpiece to be milled.

[0008] In some embodiments, the positioning member is further provided with a limiting portion on the side near the power drive assembly. The limiting portion has limiting surfaces located on opposite sides of the milling groove, and the limiting surfaces are perpendicular to the reference positioning plane.

[0009] In some embodiments, a plurality of milling fixed positions are formed on the reference positioning plane, and a milling groove is provided on the positioning member corresponding to each of the milling fixed positions. The plurality of milling grooves are arranged sequentially along the length direction of the positioning member and extend into the width direction of the positioning member.

[0010] In some embodiments, each group of power drive components includes a plurality of drive members, and each milling slot corresponds to two drive members. The two drive members are located on both sides of the milling slot and are symmetrically distributed with respect to the center line of the milling slot.

[0011] In some embodiments, the driving element is a linear drive mechanism.

[0012] In some embodiments, the milling clamping fixture further includes a fixing member disposed between the positioning member and the drive end of the power drive assembly. The fixing member has a fixing part and a through-hole. The fixing part corresponds to the position of the milling groove and is used to fix the workpiece to be milled. The through-hole is located on the side of the fixing member close to the power drive assembly and corresponds to the position of the drive end.

[0013] In some embodiments, the fixing part includes a fixing groove, which is formed on the side of the fixing member near the milling groove and communicates with the through port.

[0014] In some embodiments, the milling clamping fixture further includes a guide member, one end of which is disposed within a clamping area formed between the positioning member and the power drive assembly, and the other end extends outward from the clamping area and protrudes from the clamping area. The fixing member is slidably disposed on the guide member and can move along the length direction of the guide member.

[0015] In some embodiments, the fastener is provided with a handle on the side of the fastener that protrudes from the clamping area near the guide.

[0016] Compared with existing technologies, the milling clamping fixture provided by this utility model, through the setting of positioning components and power drive components, provides a stable positioning reference for the battery cell during the clamping process. The reference positioning plane of the positioning components provides a stable positioning reference for the battery cell, and several drive ends of the power drive components can move independently. By driving at multiple points on the bottom of the battery cell, it ensures that the end face of the battery cell can be tightly pressed against the reference positioning plane, achieving precise clamping of the battery cell and adapting to irregular deformation of the battery cell. This design not only improves the accuracy and stability of milling but also effectively avoids damage to the battery cell caused by positional displacement during milling, thus contributing to improved milling efficiency and yield.

[0017] By setting milling slots, not only can the milling device perform milling operations on the position to be milled on the workpiece, but it can also serve as a chip removal channel, so that the chips generated during the milling process can be quickly discharged, avoiding the impact of chip accumulation on milling quality and efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the milling clamping fixture provided in this embodiment of the utility model; Figure 2 This is a front view cross-sectional structural diagram of the positioning component and power drive assembly of the milling clamping fixture provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the main cross-sectional structure of the fixing component of the milling clamping fixture provided in this embodiment of the utility model; Figure 4 This is a top view of the milling clamping fixture provided in this embodiment of the utility model; Figure 5 This is a side view of the fixed fixture of the milling clamping fixture provided in this embodiment of the present invention when it slides out of the clamping area; Figure 6 This is a side view of the fixed fixture of the milling clamping fixture provided in this embodiment of the present invention when it slides into the clamping position.

[0019] Explanation of reference numerals in the attached figures: 1. Positioning component; 101. Reference positioning plane; 102. Milled groove; 103. Limiting part; 104. Limiting surface; 11. Positioning plate; 12. Limiting frame; 2. Power drive assembly; 21. Drive component; 211. Cylinder; 212. Pressure plate; 3. Fixing component; 301. Fixing groove; 302. Through port; 31. Fixing fixture; 311. Handle; 4. Guide component; 41. Guide rail; 5. Positioning base; 6. Positioning column; 7. Support block. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] To address the technical problems of uneven milling depth and damage to internal electrodes or diaphragms caused by irregular deformation of battery cells during disassembly, this invention provides a milling clamping fixture that can accurately clamp the battery cells and adapt to their irregular deformation. This improves the precision and stability of milling.

[0022] It should be noted that the milling clamping fixture described in this utility model is used for, but not limited to, fixing battery cells. For ease of explanation, this utility model only uses the application of the milling clamping fixture to fixing battery cells as an example. The principle of applying the milling clamping fixture to fixing other types of components is essentially the same as that applied to fixing battery cells, and will not be elaborated here.

[0023] Please see Figures 1 to 3 The milling clamping fixture includes: a positioning component 1 and a power drive assembly 2. The positioning component 1 is provided with a reference positioning plane 101 for positioning the workpiece to be milled, and the positioning component 1 is provided with a milling groove 102 corresponding to the milling part of the workpiece to be milled. The power drive assembly 2 is connected to the positioning component 1 and has several driving ends corresponding to the reference positioning plane 101. The several driving ends can move independently relative to the reference positioning plane 101 and are used to drive the end face of the workpiece to be milled to press against the reference positioning plane 101.

[0024] In this device, the positioning component 1 is provided with a reference positioning plane 101 for positioning. This reference positioning plane 101 is set parallel to the milling reference plane of the milling tool to provide a stable positioning base. Several drive ends can be independently adjusted in position relative to the reference positioning plane 101, thereby adapting to workpieces of different sizes and shapes, especially to battery cells with irregular deformation at the bottom. By adjusting the position of the drive ends, it can be ensured that the end face of the battery cell is tightly attached to the reference positioning plane 101. The positioning component 1 is provided with a milling groove 102 corresponding to the milling part of the workpiece. After the battery cell is fixed, the electrode post is located in the milling groove 102. At this time, the electrode post of the battery cell can be precisely milled through the milling groove 102, further improving the machining accuracy of the battery cell. In addition, the setting of the milling groove 102 also facilitates the timely discharge of waste generated during the milling process, avoiding the decrease in processing efficiency and possible quality problems caused by waste accumulation.

[0025] To ensure accurate milling of the battery cell terminals by the milling tool, in some possible embodiments, the cross-sectional area of ​​the milling groove 102 is smaller than the cross-sectional area of ​​the battery cell end face, and its groove width is greater than the radial width of the battery cell terminal, while its groove length is greater than the maximum distance between the two terminals of the battery cell. This design allows the end face of the battery cell to precisely contact the reference positioning plane 101 for positioning when the power drive assembly 2 drives the battery cell upward, while the battery cell terminal extends precisely into the milling groove 102 for milling operations.

[0026] To further improve the cell fixation effect, please refer to [link / reference needed]. Figure 2 and Figure 3 In some possible embodiments, the positioning member 1 is further provided with a limiting part 103 on the side near the power drive assembly 2. The limiting part 103 has limiting surfaces 104 located on opposite sides of the milling groove 102, and the limiting surfaces 104 are perpendicular to the reference positioning plane 101.

[0027] When the power drive assembly 2 drives the battery cell to move towards the reference positioning plane 101, the battery cell's terminal will first contact the limiting surface 104. Since the limiting surface 104 is perpendicular to the reference positioning plane 101, the battery cell's terminal will gradually approach and eventually fit against the reference positioning plane 101 under the guidance of the limiting surface 104. This process not only ensures the precise positioning of the battery cell but also avoids the battery cell from shaking during movement. At the same time, the setting of the limiting part 103 also effectively prevents the battery cell from shifting or rotating due to uneven force during milling, further ensuring the quality of the milling operation.

[0028] To further improve milling efficiency, please refer to [link / reference needed]. Figures 1 to 4 In some possible embodiments, the positioning member 1 can simultaneously mill and fix multiple battery cells. A plurality of milling and fixing positions are formed on the reference positioning plane. A milling groove 102 is provided on the positioning member 1 corresponding to each milling and fixing position. Each milling groove 102 matches its corresponding milling and fixing position to accommodate different battery cell sizes and shapes. The plurality of milling grooves 102 are arranged sequentially along the length direction of the positioning member 1 and extend into the width direction of the positioning member 1.

[0029] Please see Figures 1 to 3In one embodiment, the positioning member 1 consists of a positioning plate 11 and a plurality of limiting frames 12 disposed on one side of the positioning plate 11. The limiting frames 12 are designed as T-shaped structures, and a milling fixed position is formed between every two limiting frames 12. A reference positioning plane 101 is formed on the side of each set of limiting frames 12 away from the positioning plate 11, a limiting part 103 is formed at the bottom end, and limiting surfaces 104 are formed on both sides of the bottom end. A milling groove 102 for the power supply core pole to extend into is provided on the positioning plate 11 corresponding to each milling fixed position. A plurality of milling grooves 102 are arranged sequentially along the length direction of the positioning plate 11 and extend into the width direction of the positioning plate 11.

[0030] Further, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 In some possible embodiments, the device further includes a positioning base 5 and positioning posts 6. The positioning base 5 is installed below the positioning plate 11, and its top surface is fixedly connected to the positioning plate 11 by four positioning posts 6. The power drive assembly 2 is installed on the positioning base 5. This achieves support and fixation for the positioning component 1 and the power drive assembly 2.

[0031] In other possible embodiments, the specific form of the positioning element 1 is not limited to this, and other shapes and structures may be adopted to accommodate different cell sizes and shapes.

[0032] Please see Figure 1 , Figure 2 and Figure 5 To achieve the positioning and fixing of multiple battery cells, in some possible embodiments, each power drive assembly 2 includes several drive components 21. These drive components 21 are linear drive mechanisms such as cylinders, electric push rods, hydraulic cylinders, or linear motors. Each milling groove 102 corresponds to two drive components 21, located on opposite sides of the milling groove 102 and symmetrically distributed relative to its centerline. The two corresponding drive components 21 drive both ends of the battery cell toward the reference positioning plane 101, ensuring that the end faces are evenly stressed and tightly fitted to the reference positioning plane 101. This ensures the stability of the battery cell during milling and avoids milling errors caused by cell movement.

[0033] Preferably, the driving component 21 includes a cylinder 211 and a pressure plate 212. The piston rod of the cylinder 211 is connected to the pressure plate 212, which is used to contact the end face of the battery cell and drive the battery cell to move towards the reference positioning plane 101. The cylinder 211 allows the pressure plate 212 to push the battery cell smoothly and quickly, ensuring the stability of the battery cell during milling. Simultaneously, the piston rod stroke of the cylinder 211 is adjustable to accommodate battery cells of different heights, improving the versatility and flexibility of the device. The design of the pressure plate 212 also takes into account the shape and size of the battery cell, ensuring uniform force distribution when pushing the battery cell and preventing deformation or damage.

[0034] For initial positioning of multiple battery cells, please refer to [link / reference]. Figure 1 and Figure 3 In some possible embodiments, the milling clamping fixture further includes a fixing member 3, which is disposed between the positioning member 1 and the power drive assembly 2. The fixing member 3 has a fixing part and a through-hole 302. The fixing part is a fixing groove 301, which is formed on the side of the fixing member 3 near the milling groove 102 and communicates with the through-hole 302. Multiple fixing grooves 301 are provided and correspond to each milling groove 102. The battery cell is placed in the fixing groove 301, and the fixing groove 301 is used to initially position the battery cell, which facilitates the subsequent precise driving and fixing of the battery cell by the drive assembly 21. The shape and size of the fixing groove 301 are adapted to the battery cell. The through-hole 302 is located on the side of the fixing member 3 near the power drive assembly 2 and corresponds to the position of the drive end. The drive end can push the battery cell through the through-hole 302 to ensure that the battery cell can smoothly enter the milling groove 102 for precise positioning.

[0035] In one possible embodiment, the fixing member 3 is a fixing fixture 31, which is a frame structure with a through groove in the middle. Several fixing grooves 301 and through openings 302 are respectively provided on both sides of the through groove. The fixing grooves 301 are arranged sequentially along the length of the through groove. This design not only facilitates the placement and initial positioning of the battery cell, but also allows the driving member 21 to smoothly push the battery cell through the through openings 302, ensuring that the battery cell can accurately enter the milling groove 102 for precise positioning.

[0036] Of course, in other possible embodiments, the fixing part is not limited to a groove structure, but can also adopt other forms of positioning structure, such as buckles, clamping arms, etc., as long as it can achieve the initial positioning and fixing of the workpiece to be milled.

[0037] Please see Figure 1 , Figure 5 and Figure 6In some possible embodiments, the milling clamping fixture further includes a guide member 4, which is a guide rail 41. One end of the guide rail 41 is disposed within the clamping area formed between the positioning member 1 and the power drive assembly 2, and the other end extends outward from the clamping area and protrudes from the clamping area. The fixing fixture 31 is slidably disposed on the guide rail 41 and can move along the length of the guide rail 41, and can slide out of the clamping area to facilitate the picking, placing, and replacing of the battery cells. Figure 5 As shown. When milling of the battery cell is required, simply push the fixing fixture 31 along the guide rail 41 into the clamping area, aligning the battery cell's terminal with the milling groove 102, as shown. Figure 6 As shown. Furthermore, a handle 311 is provided on the side of the fixed fixture 31 that protrudes from the clamping area near the guide member 4, making it convenient for the operator to manually push or pull the fixed fixture 31.

[0038] Furthermore, support blocks 7 are provided at both ends of the bottom of the guide rail 41. The support blocks 7 are fixed on the positioning base 5, and their top surfaces are in contact with the bottom surfaces of the guide rail 41, providing stable support for the guide rail 41.

[0039] Of course, in other possible embodiments, the design of the guide member 4 is not limited to the form of the guide rail 41. Other guiding structures such as slide rails combined with guide rods can also be used, as long as they can achieve smooth sliding and positioning of the fixed fixture 31. In addition, the guide member 4 can also be equipped with a drive structure, such as a motor or cylinder, to automatically push or pull the fixed fixture 31 to move along the guide member 4.

[0040] To better understand this utility model, the following is combined with... Figures 1 to 6 The technical solution of this utility model is described in detail below: The implementation of this solution includes the following steps: S1. In the initial state, the fixture 31 is located outside the clamping area, and the 8 battery cells are placed on the fixture 31 in batches.

[0041] S2. Manually push the fixing fixture 31 along the guide rail 41 to slide into the clamping area, so that the fixing fixture 31 and the battery cell are pushed to the predetermined position.

[0042] S3, when the air is turned on, the cylinder 211 lifts and drives the battery cell to rise, and the upper surface of the battery cell is pressed against the positioning part 1.

[0043] S4. Start the program to perform milling.

[0044] S5. After processing is completed, the air is released, cylinder 211 retracts, and the battery cell returns to the fixed fixture 31.

[0045] S6. Pull the fixed fixture 31 out of the clamping area to the loading / unloading position using the handle 311.

[0046] S7. Remove the battery cell and proceed to the next cycle.

[0047] This invention, by setting up a positioning component 1 and a power drive assembly 2, provides a stable positioning reference for the battery cell during clamping. The reference positioning plane 101 of the positioning component 1 provides this reference, and several drive ends of the power drive assembly 2 can move independently. Through multi-point driving at the bottom of the battery cell, it ensures that the end face of the battery cell is tightly pressed against the reference positioning plane 101, achieving precise clamping of the battery cell and adapting to irregular deformation. This design not only improves the accuracy and stability of milling but also effectively avoids damage to the battery cell caused by positional displacement during milling, thus improving milling efficiency and yield.

[0048] By setting the milling groove 102, this utility model not only facilitates the milling device to perform milling operations on the battery cell terminals, but also serves as a chip removal channel, enabling the chips generated during the milling process to be discharged quickly, thus avoiding the impact of chip accumulation on milling quality and efficiency.

[0049] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0050] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A milling clamping fixture, characterized in that, include: The positioning component has a reference positioning plane for positioning the workpiece to be milled, and the positioning component has a milling groove relative to the part to be milled of the workpiece. as well as A power drive assembly, connected to the positioning member, has several drive ends corresponding to the reference positioning plane. These drive ends can move independently relative to the reference positioning plane, and are used to drive the end face of the workpiece to be milled to press against the reference positioning plane.

2. The milling clamping fixture according to claim 1, characterized in that, The cross-sectional area of ​​the milling groove is smaller than the cross-sectional area of ​​the end face of the workpiece to be milled, and its groove width is greater than the radial width of the milling position on the end face of the workpiece to be milled.

3. The milling clamping fixture according to claim 1, characterized in that, The positioning member is further provided with a limiting part on the side near the power drive assembly. The limiting part has limiting surfaces located on opposite sides of the milling groove, and the limiting surfaces are perpendicular to the reference positioning plane.

4. The milling clamping fixture according to claim 1, characterized in that, The reference positioning plane has several milling fixed positions. A milling groove is provided on the positioning member corresponding to each of the milling fixed positions. The milling grooves are arranged sequentially along the length direction of the positioning member and extend into the width direction of the positioning member.

5. The milling clamping fixture according to claim 4, characterized in that, Each of the power drive components includes several drive members, and each milling slot corresponds to two drive members. The two drive members are located on both sides of the milling slot and are symmetrically distributed with respect to the center line of the milling slot.

6. The milling clamping fixture according to claim 5, characterized in that, The driving component is a linear drive mechanism.

7. The milling clamping fixture according to claim 1, characterized in that, It also includes a fixing member, which is disposed between the positioning member and the driving end of the power drive assembly. The fixing member is provided with a fixing part and a through port. The fixing part corresponds to the position of the milling groove and is used to fix the workpiece to be milled. The through port is located on the side of the fixing member close to the power drive assembly and corresponds to the position of the driving end.

8. The milling clamping fixture according to claim 7, characterized in that, The fixing part includes a fixing groove, which is formed on the side of the fixing member near the milling groove and communicates with the through port.

9. The milling clamping fixture according to claim 7, characterized in that, It also includes a guide member, one end of which is disposed in the clamping area formed between the positioning member and the power drive assembly, and the other end extends outward from the clamping area and protrudes from the clamping area. The fixing member is slidably disposed on the guide member and can move along the length direction of the guide member.

10. The milling clamping fixture according to claim 9, characterized in that, The fixing member has a handle on the side that protrudes from the clamping area near the guide member.

Images