A battery cell welding fixture based on rotary clamping

Abstract

This utility model relates to a cell welding fixture based on rotary clamping, comprising: a base; a support plate mounted on the base; clamping members, at least one of which is slidably disposed on the periphery of the support plate; a rotating assembly connected to the clamping members; and a driving assembly for driving the rotating assembly to rotate, thereby causing the clamping members to move closer to or away from the support plate. The advantages of this utility model are that it reduces structural complexity, improves space utilization, avoids structural interference, and ensures efficient production.

Description

Technical Field

[0001] This utility model relates to the field of battery processing technology, and more specifically, to a cell welding fixture based on rotary clamping. Background Technology

[0002] After the battery cells are assembled, they need to be welded to the casing. Currently, battery production lines typically fix the cells on welding fixtures and transfer them via conveyor lines. Existing welding fixtures have multiple clamping components to hold the cells, and each clamping component is equipped with a motor or cylinder. This results in a complex structure for the welding fixture, which occupies a large space. Moreover, the complex structural design of the welding fixture is prone to structural interference during transfer on the conveyor line, such as pipeline crossings, causing the battery production line to stop and affecting battery production efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a cell welding fixture based on rotary clamping that can reduce structural complexity, improve space utilization, avoid structural interference, and ensure efficient production.

[0004] A cell welding fixture based on rotary clamping includes: a base; a support plate mounted on the base; a clamping member, at least one of which is slidably disposed on the periphery of the support plate; a rotating assembly connected to the clamping member; and a driving assembly for driving the rotating assembly to rotate, thereby causing the clamping member to move closer to or away from the support plate.

[0005] In the above scheme, the carrier plate mounted on the base is used to place the battery cell, the clamping parts slidably arranged around the carrier plate are used to clamp the battery cell, and the drive assembly is used to drive the rotating assembly to rotate, so that the rotating assembly can drive the clamping parts to move closer to or away from the carrier plate, thereby ensuring that the clamping parts stably clamp the battery cell. Through the cooperation of a set of drive assemblies and rotating assemblies, multiple clamping parts can be driven to slide, which reduces the structural complexity of the entire battery cell welding fixture, reduces the space occupied, thereby improving the space utilization rate, and avoids structural interference in the transmission line of the battery cell welding fixture, so as to ensure that the battery cell production can be carried out continuously and efficiently.

[0006] Furthermore, the rotating assembly includes at least one rotating fixture plate and an elastic element. The rotating fixture plate is mounted on the machine base and is rotatable around its center. The elastic element is connected to one end of the rotating fixture plate.

[0007] In the above scheme, since the elastic element is connected to one end of the rotating fixture plate, when the drive assembly drives the rotating fixture plate to rotate, the elastic element is stretched and the clamping element moves away from the carrier plate. After the battery cell is placed on the carrier plate, the rotating fixture plate loses the driving force of the drive assembly, and the elastic element returns to its original position and contracts. This can drive the rotating fixture plate to rotate in the opposite direction, thereby driving the clamping element to approach the battery cell and clamp the battery cell. The overall structure of the rotating assembly is simple and can improve the efficiency of clamping the battery cell, thereby ensuring the efficient production of the battery cell.

[0008] Furthermore, the rotating fixture plate includes several swing arms, at least one swing arm has a track groove at its end, and one end of the clamping member is movably connected to the track groove.

[0009] In the above scheme, when the drive component drives the rotating fixture plate to rotate, the swing arm on the rotating fixture plate will make a circular motion, which will change the position of the track groove. Since one end of the clamping member is movably connected to the track groove on the swing arm, a force will be applied to the clamping member during the change of the position of the track groove, so that the clamping member will also slide along a specific track. By reasonably designing the track groove, it can be ensured that the clamping member accurately reaches the predetermined position when it is close to the carrier plate, thereby achieving stable clamping of the battery cell.

[0010] Furthermore, one end of the clamping member is provided with a drive rod, which passes through the track groove and can move along the track groove.

[0011] In the above scheme, the drive rod passes through the track groove and can move along the track groove, realizing the movable connection between the clamping part and the track groove. During the circular motion of the rotating jig plate, the angle and position of the track groove change continuously, which can drive the drive rod to move. The movement of the drive rod causes the clamping part to slide closer to or away from the carrier plate. The track groove provides a precise path for the movement of the drive rod, ensuring that the clamping part can accurately approach or move away from the carrier plate to the designated position each time.

[0012] Furthermore, the trajectory groove is arc-shaped.

[0013] In the above scheme, the arc-shaped track groove is adapted to the rotational motion of the rotating jig plate. When the rotating jig plate makes a circular motion, it drives the drive rod to move. After that, the rotating jig plate resets, and the drive rod resets along the arc-shaped track groove. This can more efficiently convert the rotational force of the rotating jig plate into the linear motion of the clamping part.

[0014] Furthermore, the base is provided with a sliding groove, through which the drive rod passes and can slide along the sliding groove.

[0015] In the above scheme, when the drive assembly drives the rotating jig plate to rotate, the swing arm with the track groove on the rotating jig plate will perform circular motion. Since the drive rod passes through the track groove and is connected to the clamping component, the circular motion of the swing arm causes the position of the track groove to change, thereby generating a force on the drive rod. The drive rod passes through the sliding groove on the machine base. Under the force of the track groove on the drive rod, the drive rod will slide along the sliding groove. The sliding of the drive rod causes the clamping component connected to it to make a linear motion closer to or away from the support plate on the periphery of the support plate. The sliding groove makes the movement of the clamping component more stable and accurate.

[0016] Furthermore, a slide rail is installed on the base, and a slider is slidably mounted on the slide rail, with the clamping member connected to the slider.

[0017] In the above solution, since the clamping component is connected to the slider, and the slider is slidably mounted on the slide rail, the clamping component can move along the slide rail via the slider. The high-precision machined surface of the slide rail enables the slider to slide smoothly, reducing friction and jamming during the movement, thereby ensuring the stability and accuracy of the clamping component's sliding.

[0018] Furthermore, a central shaft is mounted on the machine base, and the rotating fixture plate is rotatably connected to the central shaft.

[0019] In the above scheme, the central shaft provides a stable rotation center and support point for the rotating jig plate. This stable support enables the rotating jig plate to perform smooth and reliable circular motion on the machine base, reducing motion errors caused by shaking or offset, and ensuring the stability and reliability of the overall structure of the battery cell welding jig.

[0020] Furthermore, the base is provided with a fixing member, and the end of the elastic member away from the rotating fixture plate is connected to the fixing member.

[0021] In the above scheme, the fixing component provides a stable and reliable connection position for the end of the elastic component away from the rotating jig plate, ensuring that the elastic component always maintains the correct position and connection state during the extension and contraction process, thereby ensuring that the elastic component can play its role in elastic reset normally.

[0022] Furthermore, the driving assembly includes a rotary drive and a rotary push block, one end of which is connected to the output end of the rotary drive, and the other end of which is movably abutted against the rotary fixture plate.

[0023] In the above scheme, when it is necessary to place the battery cell, the rotary drive drives the rotary push block to rotate. The rotary push block can drive the rotary fixture plate to rotate. The rotary fixture plate drives the elastic element to stretch, and at the same time, it drives the clamping element away from the carrier plate. The battery cell is placed on the carrier plate. Afterwards, the rotary drive drives the rotary push block to rotate in the opposite direction. The rotary fixture plate loses the pushing force of the rotary push block, the elastic element contracts and resets, and drives the rotary fixture plate to rotate in the opposite direction, thereby driving the clamping element to move closer to the carrier plate to achieve stable clamping of the battery cell. The rotary fixture plate can respond quickly and accurately through the drive component, realizing rapid clamping of the battery cell, which helps to improve production efficiency.

[0024] Compared with existing technologies, the rotating clamping-based battery cell welding fixture of this invention has at least the beneficial effects of reducing structural complexity, improving space utilization, avoiding structural interference, and ensuring efficient production. A support plate mounted on the base is used to place the battery cells, and clamping members slidably disposed around the support plate are used to clamp the battery cells. A drive assembly drives a rotating assembly to rotate, allowing the rotating assembly to move the clamping members closer to or away from the support plate, thereby ensuring stable clamping of the battery cells. Through the cooperation of a set of drive and rotating assemblies, multiple clamping members can be slid, reducing the overall structural complexity of the battery cell welding fixture, reducing the space occupied, thus improving space utilization, and avoiding structural interference between the battery cell welding fixture and the transmission line, ensuring continuous and efficient battery cell production. Attached Figure Description

[0025] Figure 1 This is a perspective view of an embodiment of a cell welding fixture based on rotary clamping.

[0026] Figure 2 This is a schematic diagram of the connection structure between the clamping member and the rotating assembly in one embodiment.

[0027] Figure 3 This is a schematic diagram of a rotating component structure according to one embodiment.

[0028] Figure 4 This is a schematic diagram of a rotating fixture plate structure according to one embodiment.

[0029] Figure 5 This is a schematic diagram of a clamping member according to one embodiment.

[0030] Figure 6 This is a schematic diagram of a slide rail and sliding groove according to one embodiment.

[0031] Figure 7 This is a schematic diagram of the structure of a driver component according to one embodiment.

[0032] Explanation of reference numerals: 1. Base; 2. Bearing plate; 3. Clamping component; 4. Rotating assembly; 41. Rotating jig plate; 411. Swing arm; 42. Elastic component; 5. Drive assembly; 51. Rotating drive component; 52. Rotating push block; 6. Fixing component; 7. Track groove; 8. Push block; 9. Drive rod; 10. Sliding groove; 11. Slide rail; 12. Slider; 13. Central shaft. Detailed Implementation

[0033] The present invention provides a detailed description of a cell welding fixture based on rotary clamping, in conjunction with specific embodiments and accompanying drawings.

[0034] like Figure 1 and Figure 2 As shown in a preferred embodiment, a cell welding fixture based on rotary clamping according to the present invention includes: a base 1, a support plate 2, a clamping member 3, a rotating assembly 4, and a driving assembly 5. The support plate 2 is mounted on the base 1, and at least one clamping member 3 is slidably disposed on the periphery of the support plate 2. The rotating assembly 4 is connected to the clamping member 3, and the driving assembly 5 is used to drive the rotating assembly 4 to rotate, so as to move the clamping member 3 closer to or away from the support plate 2. The support plate 2 mounted on the base 1 is used to place the battery cell. The clamping parts 3 slidably arranged around the support plate 2 are used to clamp the battery cell. The drive assembly 5 is used to drive the rotating assembly 4 to rotate, so that the rotating assembly 4 can drive the clamping parts 3 to move closer to or away from the support plate 2, thereby ensuring that the clamping parts 3 stably clamp the battery cell. Through the cooperation of a set of drive assembly 5 and rotating assembly 4, multiple clamping parts 3 can be driven to slide, which reduces the structural complexity of the entire battery cell welding fixture, reduces the space occupied, and thus improves the space utilization rate. It can also avoid structural interference between the battery cell welding fixture and the transmission line, so as to ensure that the battery cell production can be carried out continuously and efficiently.

[0035] It should be noted that the transmission line can be a belt conveyor line driven by a motor to circulate the belt, a chain conveyor line composed of metal or plastic chain plates, a roller conveyor line, or a magnetic levitation return line, etc. Taking the magnetic levitation return line as an example, the magnetic levitation return line is equipped with a high-precision slide rail, such as a linear guide rail. A slider is installed at the bottom of the cell welding fixture, and the slider can slide along the slide rail. The magnetic levitation vehicle is suspended by electromagnetic force and pushes the cell welding fixture to slide.

[0036] Reference Figure 1 The support plate 2 is provided with four clamping parts 3 on its periphery. The four clamping parts 3 can be used to clamp batteries of various sizes, thereby improving the versatility of the cell welding fixture.

[0037] like Figure 2 and Figure 3As shown, in some embodiments, the rotating assembly 4 includes at least one rotating fixture plate 41 and an elastic element 42. The rotating fixture plate 41 is mounted on the base 1 and can rotate around its center. The elastic element 42 is connected to one end of the rotating fixture plate 41. Since the elastic element 42 is connected to one end of the rotating fixture plate 41, when the driving assembly 5 drives the rotating fixture plate 41 to rotate, the elastic element 42 is stretched. At the same time, the clamping element 3 moves away from the support plate 2. After the battery cell is placed on the support plate 2, the rotating fixture plate 41 loses the driving force of the driving assembly 5, and the elastic element 42 returns to its original position and contracts. This allows the rotating fixture plate 41 to rotate in the opposite direction, thereby driving the clamping element 3 to move closer to the battery cell and clamp it. The rotating assembly 4 has a simple overall structure, occupies less space, and can improve the efficiency of clamping the battery cell, thus ensuring the efficient production of the battery cell.

[0038] Specifically, the elastic element 42 can be a tension spring. When the tension spring is in a stretched and elongated state, the clamping element 3 moves away from the bearing plate 2. When the tension spring is in a contracted and reset state, the clamping element 3 moves closer to the bearing plate 2.

[0039] like Figure 3 As shown, in some embodiments, the rotating jig plate 41 includes a plurality of swing arms 411, at least one swing arm 411 having a track groove 7 at its end, and one end of the clamping member 3 being movably connected to the track groove 7. When the driving assembly 5 drives the rotating jig plate 41 to rotate, the swing arms 411 on the rotating jig plate 41 will perform circular motion, causing the position of the track groove 7 to change. Since one end of the clamping member 3 is movably connected to the track groove 7 on the swing arm 411, a force will be applied to the clamping member 3 during the change of position of the track groove 7, so that the clamping member 3 also slides along a specific track. By reasonably designing the track groove 7, it can be ensured that the clamping member 3 accurately reaches the predetermined position when it approaches the support plate 2, thereby achieving stable clamping of the battery cell.

[0040] Reference Figure 3 Each rotating fixture plate 41 has two swing arms 411, and each swing arm 411 has a track groove 7 at its end. Two clamping parts 3 are movably connected to the two track grooves 7 respectively. When the drive assembly 5 drives the rotating fixture plate 41 to rotate, it can simultaneously drive the two swing arms 411 to rotate, thereby driving the two clamping parts 3 to move closer to or further away from the carrier plate 2. This design reduces the complexity of the overall structure and can avoid structural interference when the welding fixture is transferred on the transmission line, such as pipeline crossing, thus ensuring continuous and stable battery production.

[0041] Reference Figure 4There are two rotating fixture plates 41 of the two swing arms 411. The two rotating fixture plates 41 are orthogonally mounted on the machine base 1, and both rotating fixture plates 41 are connected to elastic members 42. One of the rotating fixture plates 41 is provided with a push block 8. When the rotating fixture plate 41 rotates, the push block 8 can push the other rotating fixture plate 41, which has no additional driving force, to rotate. Only one set of drive components 5 is needed to drive the two rotating fixture plates 41 to rotate.

[0042] In the above embodiment, a single rotating jig plate 41 may have four swing arms 411. Two adjacent swing arms 411 are respectively connected to two elastic members 42. In this way, when the driving component 5 drives one of the swing arms 411 to rotate, the other swing arms 411 can rotate at the same time, thereby driving the four clamping members 3 on the four swing arms 411 to move synchronously. This makes the structure simpler and easier to process and install.

[0043] like Figure 2 and Figure 5 As shown, in some embodiments, one end of the clamping member 3 is provided with a drive rod 9, which passes through the track groove 7 and can move along the track groove 7. The drive rod 9 passing through and moving along the track groove 7 achieves a movable connection between the clamping member 3 and the track groove 7. During the circular motion of the rotating fixture plate 41, the angle and position of the track groove 7 continuously change, driving the drive rod 9 to move. The movement of the drive rod 9 causes the clamping member 3 to slide closer to or away from the support plate 2. The track groove 7 provides a precise path for the movement of the drive rod 9, ensuring that the clamping member 3 can accurately approach or move away from the support plate 2 to the designated position each time.

[0044] like Figure 3 and Figure 4 As shown, in some embodiments, the track groove 7 is arc-shaped. The arc-shaped track groove 7 is adapted to the rotational movement of the rotating jig plate 41. When the rotating jig plate 41 makes a circular motion, it drives the drive rod 9 to move. Afterwards, the rotating jig plate 41 resets, and the drive rod 9 resets along the arc-shaped track groove 7, which can more efficiently convert the rotational force of the rotating jig plate 41 into the linear motion of the clamping member 3.

[0045] like Figure 6As shown, in some embodiments, the base 1 is provided with a sliding groove 10, and the drive rod 9 passes through the sliding groove 10, allowing the drive rod 9 to slide along the sliding groove 10. When the drive assembly 5 drives the rotating fixture plate 41 to rotate, the swing arm 411 with the track groove 7 on the rotating fixture plate 41 will perform a circular motion. Since the drive rod 9 passes through the track groove 7 and is connected to the clamping member 3, the circular motion of the swing arm 411 causes the position of the track groove 7 to change, thereby generating a force on the drive rod 9. The drive rod 9 passes through the sliding groove 10 on the base 1. Driven by the force exerted on the drive rod 9 by the track groove 7, the drive rod 9 will slide along the sliding groove 10. The sliding of the drive rod 9 causes the clamping member 3 connected to it to make a linear motion closer to or away from the support plate 2 around the periphery of the support plate 2. The sliding groove 10 makes the movement of the clamping member 3 more stable and accurate.

[0046] like Figure 6 As shown, in some embodiments, a slide rail 11 is mounted on the base 1, and a slider 12 is slidably mounted on the slide rail 11. The clamping member 3 is connected to the slider 12. Since the clamping member 3 is connected to the slider 12, and the slider 12 is slidably mounted on the slide rail 11, the clamping member 3 can move along the slide rail 11 via the slider 12. The high-precision machined surface of the slide rail 11 allows the slider 12 to slide smoothly, reducing friction and jamming during movement, thereby ensuring the stability and accuracy of the sliding of the clamping member 3.

[0047] like Figure 3 As shown, in some embodiments, a central shaft 13 is mounted on the base 1, and the rotating jig plate 41 is rotatably connected to the central shaft 13. The central shaft 13 provides a stable rotation center and support point for the rotating jig plate 41. This stable support enables the rotating jig plate 41 to perform smooth and reliable circular motion on the base 1, reducing motion errors caused by shaking or offset, and ensuring the stability and reliability of the overall structure of the battery cell welding jig.

[0048] In the above embodiment, the bearing plate 2 is installed at the top of the central shaft 13, making the overall structure simple and compact.

[0049] like Figure 2 As shown, in some embodiments, the base 1 is provided with a fixing member 6, and the end of the elastic member 42 away from the rotating jig plate 41 is connected to the fixing member 6. The fixing member 6 provides a stable and reliable connection position for the end of the elastic member 42 away from the rotating jig plate 41, ensuring that the elastic member 42 always maintains the correct position and connection state during the extension and retraction process, thereby ensuring that the elastic member 42 can perform its elastic reset function normally.

[0050] like Figure 2 and Figure 7As shown, in some embodiments, the drive assembly 5 includes a rotary drive 51 and a rotary pusher 52. One end of the rotary pusher 52 is connected to the output end of the rotary drive 51, and the other end is movably abutted against the rotary fixture plate 41. When a battery cell needs to be placed, the rotary drive 51 drives the rotary pusher 52 to rotate. The rotary pusher 52 can drive the rotary fixture plate 41 to rotate. The rotary fixture plate 41 drives the elastic member 42 to stretch, and at the same time drives the clamping member 3 away from the support plate 2. The battery cell is placed on the support plate 2. Then, the rotary drive 51 drives the rotary pusher 52 to rotate in the opposite direction. The rotary fixture plate 41 loses the pushing force of the rotary pusher 52, the elastic member 42 contracts and resets, and drives the rotary fixture plate 41 to rotate in the opposite direction, thereby driving the clamping member 3 to move closer to the support plate 2 to achieve stable clamping of the battery cell. The rotary fixture plate 41 of the drive assembly 5 can respond quickly and accurately to achieve rapid clamping of the battery cell, which helps to improve production efficiency.

[0051] This utility model discloses the working principle and process of a battery cell welding fixture based on rotary clamping. When it is necessary to place or remove a battery cell from the welding fixture, the rotary drive 51 drives the rotary push block 52 to rotate, thereby causing the rotary fixture plate 41 to rotate around the central shaft 13. During the circular motion of the rotary fixture plate 41, the angle and position of its trajectory groove 7 continuously change, which can drive the drive rod 9 to move. The movement of the drive rod 9 causes the clamping member 3 to move away from the support plate 2. After the battery cell is placed, the rotary push block 52 is driven to rotate in the opposite direction. The rotary fixture plate 41 loses the pushing force of the rotary push block 52, the elastic member 42 contracts and resets, causing the rotary fixture plate 41 to rotate in the opposite direction. The drive rod 9 moves and resets along the trajectory groove 7, thereby causing the clamping member 3 to move closer to the support plate 2, thus achieving stable clamping of the battery cell.

[0052] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A rotary clamp-based cell welding fixture, characterized by, include: Base; A support plate is mounted on the machine base; A clamping member, at least one of the clamping members being slidably disposed on the periphery of the support plate; The rotating assembly is connected to the clamping member; A drive assembly is used to drive the rotating assembly to rotate, thereby moving the clamping member closer to or away from the support plate.

2. The rotary clamp-based cell welding fixture of claim 1, wherein, The rotating assembly includes at least one rotating fixture plate and an elastic element. The rotating fixture plate is mounted on the machine base and is rotatable around its center. The elastic element is connected to one end of the rotating fixture plate.

3. The rotary clamp-based cell welding fixture of claim 2, wherein, The rotating fixture plate includes several swing arms, at least one swing arm has a track groove at its end, and one end of the clamping member is movably connected to the track groove.

4. The rotary clamp-based cell welding fixture of claim 3, wherein, One end of the clamping member is provided with a drive rod, which passes through the track groove and can move along the track groove.

5. The rotary clamp-based cell welding fixture of claim 4, wherein, The track groove is arc-shaped.

6. The rotary clamp-based cell welding fixture of claim 4, wherein, The base is provided with a sliding groove, and the drive rod passes through the sliding groove, allowing the drive rod to slide along the sliding groove.

7. The rotary clamp-based cell welding fixture of claim 1, wherein, The base is equipped with a slide rail, and a slider is slidably mounted on the slide rail. The clamping member is connected to the slider.

8. The rotary clamp-based cell welding fixture of claim 2, wherein, A central shaft is mounted on the machine base, and the rotating fixture plate is rotatably connected to the central shaft.

9. The rotary clamp-based cell welding fixture of claim 2, wherein, The base is provided with a fixing component, and the end of the elastic element away from the rotating fixture plate is connected to the fixing component.

10. The rotary clamp-based cell welding fixture of claim 2, wherein, The driving assembly includes a rotary drive and a rotary push block. One end of the rotary push block is connected to the output end of the rotary drive, and the other end is movably abutted against the rotary fixture plate.

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