A rolling mechanism

Abstract

The application discloses a rolling mechanism, which comprises a rolling module, a Y-axis driving module and an X-axis driving module. The rolling module is provided with two groups, and the two groups of rolling modules are symmetrically arranged. The rolling module is provided with a rolling wheel. Two groups of rolling wheels are used for rolling two arc-shaped edges on two sides of a square lithium battery and a short edge between the two arc-shaped edges. The X-axis driving module is arranged at the bottom of the two groups of rolling modules. Two groups of X-axis driving modules are used for driving two rolling modules in the X-axis direction. Two groups of opposite rolling modules are used for rolling two square arc-shaped edges and a short edge connected with the arc-shaped edges of the square lithium battery driven by a jig in sequence. The rolling of two arc-shaped edges and a short edge of the lithium battery in two directions can be completed through the continuous conveying of the square lithium battery once. The rolling efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to a lithium battery edge rolling structure, and more particularly to a rolling mechanism. Background Technology

[0002] Lithium batteries are often shaped into various forms during manufacturing, but the most common are square blocks. During the production of square lithium batteries, their outer contours require roll forming and edge grinding. The two larger faces of a lithium battery are generally referred to as the front and bottom faces. The sides connecting these two faces are prone to surface irregularities due to seams during production. However, the short sides of square lithium batteries are relatively narrow, and the joints are often curved. When using ordinary roll forming structures, it is difficult to simultaneously roll the short side and the curved edges on both sides of the same lithium battery using a single mechanism, resulting in low roll forming efficiency. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides a rolling mechanism that simultaneously sets two rolling modules to roll the short side and two arc-shaped sides of the lithium battery during the transportation of the square lithium battery.

[0004] The technical solution adopted by this invention to solve its technical problem is: a rolling mechanism, comprising: two sets of rolling modules arranged symmetrically, each rolling module having rolling rollers, the two sets of rolling rollers being used to roll the two arc-shaped sides and the short side in the middle of the two arc-shaped sides of a square lithium battery respectively; an X-axis drive module, one set of X-axis drive modules being provided at the bottom of each of the two sets of rolling modules, the two sets of X-axis drive modules driving the two rolling modules in the X-axis direction respectively; and a Y-axis drive module, provided at the bottom of the two X-axis drive modules, for simultaneously driving the two rolling modules in the Y-axis direction.

[0005] As an improvement to the above technical solution, the X-axis drive module includes an X-axis drive structure and an X-axis mounting plate. The X-axis drive structure is disposed on an X-axis base. Two sets of the X-axis drive structure and the X-axis mounting plate are disposed on the X-axis base. The X-axis mounting plate is movable on the X-axis base via the X-axis drive structure. The roll forming module is disposed on the X-axis mounting plate.

[0006] As a further improvement to the above technical solution, the X-axis drive structure includes an X-axis motor, an X-axis lead screw, and an X-axis lead screw nut. The X-axis motor and the X-axis lead screw are connected by a coupling. The X-axis lead screw nut is mounted on the X-axis lead screw and moves along the X-axis lead screw as it rotates. The X-axis mounting plate is mounted on the X-axis lead screw nut.

[0007] As a further improvement to the above technical solution, the X-axis base is also provided with an X-axis slide rail and an X-axis slider. Two X-axis slide rails are arranged side by side on the X-axis base. Two sets of X-axis drive structures are arranged between the two X-axis slide rails. The two X-axis mounting plates are respectively slidably connected to the two X-axis slide rails above the two sets of X-axis drive structures through the X-axis slider.

[0008] As a further improvement to the above technical solution, the Y-axis drive module includes a Y-axis drive structure, a Y-axis slide plate, and a locking and fixing seat. The Y-axis drive structure is disposed on the locking and fixing seat, and the Y-axis slide plate is movably disposed on the locking and fixing seat along the Y-axis direction through the Y-axis drive structure. The X-axis base is disposed on the Y-axis slide plate.

[0009] As a further improvement to the above technical solution, the Y-axis drive structure includes a Y-axis motor, a Y-axis lead screw, and a Y-axis lead screw nut. The Y-axis motor is mounted on a locking and fixing seat via a motor mount. The Y-axis lead screw is connected to the Y-axis motor via a coupling. The Y-axis lead screw nut is mounted on the Y-axis lead screw. The Y-axis sliding plate is mounted on the Y-axis lead screw nut, and the Y-axis sliding plate slides along the Y-axis lead screw nut.

[0010] As a further improvement to the above technical solution, dust covers are also provided on the X-axis drive structure and the Y-axis drive structure. The dust cover of the Y-axis drive structure is set on the locking and fixing seat, and two dust covers of the X-axis drive structure are provided on the X-axis base corresponding to the X-axis drive structure.

[0011] As a further improvement to the above technical solution, the rolling module includes a rolling assembly, a rolling drive assembly, a buffer rolling assembly, and a rolling adjustment assembly. The rolling assembly includes a rolling roller for rolling the edge of a square lithium battery. The rolling drive assembly is mounted on the rolling assembly and is used to drive the rolling assembly in the Y-axis direction. The buffer rolling assembly is mounted on the rolling drive assembly and is provided with an elastic buffer for buffering and adjusting the rolling pressure of the rolling assembly in the X-axis direction. The rolling adjustment assembly is mounted on the buffer rolling assembly and is used to adjust the position of the rolling assembly in the Y-axis direction.

[0012] As a further improvement to the above technical solution, the roller pressing assembly further includes a roller pressing base, on which a roller mounting block is provided, and on which a roller pressing shaft hole is provided, and a roller pressing shaft is provided in the roller pressing shaft hole. The roller pressing wheel is rotatably arranged in the roller pressing hole of the roller mounting block through an angle adjustment assembly and the roller pressing shaft.

[0013] As a further improvement to the above technical solution, the roller base is also provided with an encoder and a dust removal pipe. The encoder is mounted on one side of the roller mounting block via a side mounting plate and is connected to the roller shaft via the side mounting plate. The dust removal pipe is mounted on the other side of the roller mounting block via a dust removal bracket, and the pipe opening of the dust removal pipe is correspondingly set with the roller.

[0014] As a further improvement to the above technical solution, the roller pressing drive assembly includes a roller pressing cylinder and an upper mounting plate. The roller pressing cylinder is fixed on the upper mounting plate, and the cylinder shaft of the roller pressing cylinder is connected to the roller pressing base in the Y-axis direction.

[0015] As a further improvement to the above technical solution, the upper mounting plate is also provided with a slide rail in the Y-axis direction, and the roller pressing base is pushed by the roller pressing cylinder to slide on the slide rail in the Y-axis direction.

[0016] As a further improvement to the above technical solution, the upper mounting plate is also provided with a cylinder positioning component, and the roller pressing base is provided with a positioning block corresponding to the cylinder positioning component. The cylinder positioning component positions the roller pressing cylinder by interfering with the positioning block.

[0017] As a further improvement to the above technical solution, the buffer roller pressing assembly also includes a middle mounting plate, and the elastic buffer member connects the middle mounting plate and the upper mounting plate in the X-axis direction. The upper mounting plate is elastically set in the X-axis direction of the middle mounting plate.

[0018] As a further improvement to the above technical solution, the elastic buffer includes a buffer shaft and a buffer spring. The two ends of the buffer shaft are fixed to the middle mounting plate, the upper mounting plate is slidably disposed between the two fixed ends of the buffer shaft, and the buffer spring is located between the upper mounting plate and either fixed end of the buffer shaft.

[0019] As a further improvement to the above technical solution, a slide rail and a slider in the X-axis direction are also provided between the upper mounting plate and the middle mounting plate. The slide rail is set on the middle mounting plate, and the slider is set at the bottom of the upper mounting plate. The upper mounting plate can slide elastically on the middle mounting plate through the slide rail and the slider.

[0020] As a further improvement to the above technical solution, the roller pressing adjustment assembly includes an adjusting cylinder and a lower mounting plate. The adjusting cylinder is fixed on the lower mounting plate, and the cylinder shaft of the adjusting cylinder is connected to the middle mounting plate. The adjusting cylinder is used to drive the movement between the lower mounting plate and the middle mounting plate.

[0021] As a further improvement to the above technical solution, the lower mounting plate is also provided with a Y-axis guide rail, and the bottom of the middle mounting plate is provided with a slider. The middle mounting plate slides on the lower mounting plate through the cooperation of the guide rail and the slider.

[0022] As a further improvement to the above technical solution, a cylinder positioning component is also provided at the bottom of the middle mounting plate, and a positioning block corresponding to the cylinder positioning component is provided on the lower mounting plate. The cylinder positioning component positions the adjusting cylinder by interfering with the positioning block.

[0023] As a further improvement to the above technical solution, a Z-axis adjustment component is also provided at the bottom of the lower mounting plate. The Z-axis adjustment component is used to adjust the position of the roller pressing adjustment component, the buffer roller pressing component, the roller pressing drive component, and the roller pressing component in the Z-axis direction.

[0024] As a further improvement to the above technical solution, the Z-axis adjustment assembly includes a bottom mounting plate and a Z-axis adjustment bolt, wherein the bottom mounting plate is mounted on the X-axis mounting plate by the Z-axis adjustment bolt.

[0025] As a further improvement to the above technical solution, the Z-axis adjustment component also includes an adjustment scale block, which is disposed on the bottom mounting plate and located on the side of the lower mounting plate. The adjustment scale block is also provided with scale lines and distances, which are used to indicate the adjustment distance of the Z-axis adjustment component.

[0026] The beneficial effects are as follows: The square lithium battery rolling mechanism of the present invention is equipped with two sets of opposing rolling modules, which sequentially roll the two square arc-shaped sides and the short side connecting the arc-shaped sides of the square lithium battery driven by the fixture. Rolling of the two arc-shaped sides and one short side of the lithium battery in both directions can be completed in a single continuous conveying of the square lithium battery, greatly improving rolling efficiency. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is an axonometric view of the invention in one direction;

[0029] Figure 2 This is an axial view of the invention from another direction;

[0030] Figure 3 This is an exploded view of the Y-axis drive module of the present invention;

[0031] Figure 4 This is an exploded view of the X-axis drive module of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the roller pressing module of the present invention;

[0033] Figure 6 This is a partial structural schematic diagram of the roller pressing module of the present invention;

[0034] Figure 7 This is an exploded structural diagram of the roller pressing module of the present invention.

[0035] 1. X-axis drive module; 11. X-axis motor; 12. X-axis lead screw; 13. X-axis lead screw nut; 14. X-axis slide rail; 15. X-axis slider; 16. X-axis mounting plate; 17. X-axis base;

[0036] 2. Y-axis drive module; 21. Y-axis motor; 22. Y-axis lead screw; 23. Y-axis lead screw nut; 24. Y-axis slide plate; 25. Locking and fixing seat; 26. Dust cover; 27. Y-axis slide rail; 28. Y-axis slider;

[0037] 3. Roller assembly; 31. Roller roller; 32. Roller base; 33. Roller mounting block; 34. Side mounting plate; 35. Encoder; 36. Dust removal pipe; 37. Dust removal bracket;

[0038] 4. Roller press drive assembly; 41. Roller press cylinder; 42. Upper mounting plate; 43. Cylinder positioning component; 44. Positioning stop;

[0039] 5. Buffer roller assembly; 51. Middle mounting plate; 52. Buffer shaft; 53. Buffer spring;

[0040] 6. Roller pressure adjustment assembly; 61. Adjustment cylinder; 62. Lower mounting plate;

[0041] 7. Z-axis adjustment assembly; 71. Bottom mounting plate; 72. Z-axis adjustment bolt; 73. Adjustment scale block;

[0042] 8. Angle adjustment component. Detailed Implementation

[0043] The embodiments of this implementation are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this implementation, and should not be construed as limiting this implementation.

[0044] In the description of this embodiment, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment 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 embodiment.

[0045] In the description of this embodiment, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0046] In the description of this embodiment, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this embodiment in conjunction with the specific content of the technical solution.

[0047] For square lithium batteries, the connection points between the sides are chamfered with an arc shape. Since these chamfers are symmetrically positioned at both ends of one side, it is difficult to simultaneously apply pressure rollers to two arc-shaped edges in different directions using a single mechanism. Therefore, refer to... Figure 1 , Figure 2 This application discloses a rolling mechanism comprising at least two rolling modules, which are adjusted before rolling via a drive structure. A fixture for driving prismatic batteries is also provided on the side of the rolling mechanism. After adjusting the drive mechanism at the bottom of the rolling module to correspond to the position of the prismatic battery, the rolling module and the lithium battery fixture can be started simultaneously. As the lithium battery fixture drives the lithium battery, the curved edge of one side of the lithium battery in the first position first contacts the first rolling module, which then rolls this curved edge. As the lithium battery fixture continues to run, the rolling of the lithium battery by the rolling module gradually transitions to the short side of the lithium battery, and the rolling module changes its rolling state to roll the short side of the lithium battery. When the lithium battery fixture continues to run, the first lithium battery moves to the position of the second rolling module, and the second lithium battery moves to the position of the first rolling module. Because the two rolling modules are oriented in opposite directions, the second rolling module directly contacts the other curved edge of the first lithium battery. As the lithium battery continues to move, the second rolling module rolls the other curved edge, while the first rolling module rolls the first curved edge of the second lithium battery at the same time. The two lithium batteries are processed at different positions simultaneously, which greatly increases the processing efficiency of the product.

[0048] For square lithium batteries of different sizes, the positions of their short sides and curved sides differ after clamping on the fixture. Therefore, an X-axis drive module 1 and a Y-axis drive module 2 are also provided at the bottom of the rolling module. One X-axis drive module 1 is provided at the bottom of each of the two rolling modules, and the two X-axis drive modules 1 drive the two rolling modules in the X-axis direction respectively. The Y-axis drive module 2 is provided at the bottom of the two X-axis drive modules 1, and is used to drive the two rolling modules in the Y-axis direction simultaneously.

[0049] Reference Figure 4 The X-axis drive module 1 includes an X-axis mounting plate 16, an X-axis base 17, and an X-axis drive structure mounted on the X-axis base 17. The X-axis mounting plate 16 is movable on the X-axis base 17 via the X-axis drive assembly, and the roll forming module is mounted on the X-axis mounting plate 16. The X-axis drive structure is mounted on the X-axis base 17, and two sets of X-axis lead screw 12 assemblies and X-axis mounting plates 16 are provided on the X-axis base 17. The two sets of lead screw assemblies and X-axis mounting plates 16 can respectively mount two sets of roll forming modules, and can respectively adjust the X-axis direction of the two sets of roll forming modules. This not only adjusts the position of the roll forming modules in the X-axis direction, but also adjusts the distance between the two roll forming modules, so that the distance between the two roll forming modules corresponds to the distance between the two square lithium batteries. This ensures that when the first lithium battery arrives at the second roll forming module for the processing of the second arc edge, the first arc edge of the second lithium battery is exactly at the processing position of the first roll forming module, ensuring the overall processing efficiency of the equipment.

[0050] The X-axis drive structure, namely the lead screw assembly on the X-axis, includes an X-axis motor 11, an X-axis lead screw 12, and an X-axis lead screw nut 13. The X-axis motor 11 and the X-axis lead screw 12 are connected by a coupling and mounted on the X-axis base 17 via bearing seats. The X-axis lead screw nut 13 is mounted on the X-axis lead screw 12 and moves along the X-axis lead screw 12 as it rotates. An X-axis mounting plate 16 is mounted on the X-axis lead screw nut 13. To ensure the stability of the X-axis lead screw nut on the X-axis lead screw 12, the X-axis base also includes X-axis slide rails 14 and X-axis sliders 15. Two X-axis slide rails 14 are arranged side-by-side on the X-axis base 17. Both sets of X-axis drive structures are positioned between the two X-axis slide rails 14, and two X-axis mounting plates 16 are slidably connected to the two X-axis slide rails 14 above the two sets of X-axis drive structures via X-axis sliders 15. Installation is more convenient when two sets of lead screw assemblies share two parallel slide rails.

[0051] Reference Figure 3The Y-axis drive module 2 includes a Y-axis drive structure, a Y-axis slide plate 24, and a locking and fixing seat 25. The locking and fixing seat 25 is located at the bottom of the entire roller pressing mechanism and can fix and lock the roller pressing mechanism in the installation position. The Y-axis drive structure is located on the locking and fixing seat 25. The Y-axis slide plate 24 is movably mounted on the locking and fixing seat 25 along the Y-axis direction via the Y-axis drive structure. The X-axis base is mounted on the Y-axis slide plate 24. The Y-axis slide plate 24 is used to mount the X-axis base 17. The Y-axis drive structure is similar to the X-axis drive structure, including a Y-axis motor 21, a Y-axis lead screw 22, and a Y-axis lead screw nut 23. The Y-axis motor 21 is mounted on the locking and fixing seat 25 via a motor mount. The Y-axis lead screw 22 is connected to the Y-axis motor 21 via a coupling. The Y-axis lead screw nut 23 is mounted on the Y-axis lead screw 22. The Y-axis slide plate 24 is mounted on the Y-axis lead screw nut 23, and the Y-axis slide plate 24 slides along the Y-axis lead screw nut 23. Y-axis slide rails 27 and Y-axis sliders 28 are provided on both sides of the Y-axis lead screw 22. The Y-axis slide rails 27 and Y-axis sliders 28 slide together. The Y-axis sliders 28 are located at the bottom of the Y-axis slide plate 24, so that the Y-axis slide plate 24 slides on the Y-axis slide rails 27.

[0052] In addition, dust covers 26 are provided on the X-axis drive structure and the Y-axis drive structure. The dust cover 26 of the Y-axis drive structure is set on the locking and fixing base 25 and is set in two sections at both ends of the U-axis slide plate. When the Y-axis slide plate 24 moves in the Y-axis direction, the connection end between the dust cover 26 and the Y-axis slide plate 24 moves along with the Y-axis slide plate 24. There are two dust covers 26 on the X-axis base 17 corresponding to the X-axis drive structure. The arrangement of the two dust covers 26 is the same as that of the dust cover 26 on the Y-axis drive structure.

[0053] Reference Figure 5 , Figure 6The rolling module includes a rolling assembly 3, a rolling roller 31, a rolling drive assembly 4, an elastic buffer, and a rolling adjustment assembly 6. The rolling roller 31, a metal roller (SKD11), is positioned where the square lithium battery passes and is used to roll the edges of the square lithium battery. The rolling roller 31 is mounted on the rolling assembly 3 and supported by the rolling assembly 3 at the lithium battery loading position. Furthermore, to increase the flexibility of the rolling roller 31 during the lithium battery rolling process, the bottom of the rolling assembly 3 also includes a rolling drive assembly 4, a buffer rolling assembly 5, and a rolling adjustment assembly 6. The rolling assembly 3 is mounted on the rolling drive assembly 4 and adjusts the position of the rolling roller 31 in the Y-axis direction. The buffer rolling assembly 5 is mounted on the rolling drive assembly 4 and adjusts the position of the rolling drive assembly 4 in the X-axis direction, thereby buffering and adjusting the rolling roller 31 through the rolling drive assembly 4 and the rolling assembly 3. The roller pressing adjustment component 6 is located at the bottom of the buffer roller pressing component 5 and is used to adjust the position of the buffer roller pressing component 5 in the Y-axis direction, thereby adjusting the roller pressing roller 31 in the Y-axis direction. When the roller pressing adjustment component 6 is adjusted in the Y-axis direction, it can achieve the position where the roller pressing roller 31 presses the short side of the lithium battery. When the roller pressing drive component 4 extends further in the Y-axis direction based on the roller pressing adjustment component 6, it achieves the position where the roller pressing roller 31 presses the curved side of the lithium battery. The combination of these two components allows the roller pressing roller 31 to reach the pressing position more quickly and accurately, resulting in higher roller pressing efficiency and accuracy for the entire device.

[0054] Reference Figure 7 The aforementioned pressure roller assembly includes a pressure roller base 32 in addition to the pressure roller 31. The pressure roller base 32 serves as the supporting foundation for the pressure roller assembly and is primarily used to mount the pressure roller 31. As an extension of this design, the pressure roller base 32, in addition to the pressure roller 31, also includes an encoder 35 and a dust removal pipe 36. The pressure roller 31 is installed in the middle of the pressure roller base 32, while the encoder 35 and dust removal pipe 36 are located on either side of the pressure roller 31.

[0055] Specifically, during the installation of the roller pressing roller 31, a roller mounting block 33 extends from the front end of the roller pressing base 32. The roller mounting block 33 consists of two shaft lugs integrated with the roller pressing base 32. A roller pressing shaft hole is provided on the roller mounting block 33, and a roller pressing shaft is installed within the roller pressing shaft hole. The roller pressing roller 31 can then rotate within the roller pressing hole of the roller mounting block 33 via the roller pressing shaft. Furthermore, to increase the flexibility of the roller, an angle adjustment component 8 is provided between the roller and the roller pressing base 32. The angle adjustment component 8 can adjust the installation angle of the roller pressing roller 31 in the Z-axis direction, allowing the roller pressing roller 31 to adapt to the long or short side of the lithium battery at different heights and positions.

[0056] As one specific embodiment of the angle adjustment component 8, the angle adjustment component 8 includes an adjustment mounting block and an angle adjustment bolt. The adjustment mounting block is an irregularly shaped mounting block, with one end having a connecting end that connects to the roller mounting block 33 in the X main direction, and the other end having a mounting end for the roller pressure roller 31 installed in the Z axis direction. In this way, when the angle of the adjustment mounting block is adjusted, the edge of the roller pressure roller 31 angle can be formed without affecting the stability of the roller pressure roller 31 installation. In addition, an extension block that fits against the side wall of the roller mounting block 33 is provided between the connecting end and the mounting end of the adjustment mounting block. The angle adjustment bolt passes through the extension block and abuts against the side wall of the roller mounting block 33. The extension block extends to both sides in the X axis direction on the adjustment mounting block. The formation of the extension block forms a limit when the adjustment mounting block is installed on the roller base 32, which facilitates the correspondence between the shaft hole on the adjustment mounting block and the roller mounting block 33. Simultaneously, when a through-bolt is installed on the adjusting mounting block, one end of the bolt can abut against the side of the roller mounting block 33, forming a fixed limit for the rotating adjusting mounting block. As the rotation angle changes, the angle between the extension block and the side of the roller mounting block 33 changes on the adjusting mounting block rotating on the X-axis. Therefore, four angle adjusting bolts are installed, each located at one of the four corners of the extension block. By adjusting the depth to which the four angle adjusting bolts are screwed into the extension block, the distance between the four angle adjusting bolts and the side of the roller mounting block 33 can be adjusted, thereby fixing the adjusting mounting block, after rotating a certain angle, onto the roller base 32. Furthermore, when the roller shaft is installed on the adjusting mounting block, a bearing is also required. The bearing is located at the mounting end of the adjusting mounting block via the rotating shaft, and the roller 31 is mounted on the bearing.

[0057] Since the adjustment of the mounting block is manual, it is difficult to control and determine the rotation angle during operation. Therefore, an encoder 35 is also provided on the roller base 32. The encoder 35 needs to be connected to the roller shaft mounted on the roller mounting block 33 to detect the rotation angle of the roller shaft. Therefore, a side mounting plate 34 is also provided on the side of the roller mounting block 33. The encoder 35 is connected to the roller shaft through the side mounting plate 34, so that the rotation angle of the roller shaft can be detected by the encoder 35, thereby determining the rotation angle of the roller 31. In addition, some debris and impurities will be generated on the surface of the lithium battery, affecting the rolling effect. Therefore, a dust removal pipe 36 is provided on the roller base 32 synchronously with the roller base 32 to remove dust from the surface of the lithium battery during the rolling process. The dust removal pipe 36 is fixed to the side of the roller mounting block 33 opposite to the encoder 35 by a dust removal bracket 37, and the pipe opening of the dust removal pipe 36 is correspondingly set with the roller 31.

[0058] Reference Figure 7The aforementioned roller pressing drive assembly 4 includes a roller pressing cylinder 41 and an upper mounting plate 42. The roller pressing cylinder 41 is fixed on the upper mounting plate 42 and is located at one end of the upper mounting plate 42. The roller pressing base 32 is located above the upper mounting plate 42 and offset from the upper mounting plate 42 by one end. The roller pressing cylinder 41 is installed at the offset position between the upper mounting plate 42 and the roller pressing base 32, and the roller pressing cylinder 41 can be mounted on the upper mounting plate 42 via a cylinder mounting seat. At the same time, the cylinder shaft of the roller pressing cylinder 41 is connected to the roller pressing base 32 in the Y-axis direction. When the roller pressing cylinder 41 is activated, the cylinder shaft of the roller pressing cylinder 41 will push the roller pressing base 32 above the upper mounting plate 42, thereby adjusting the position of the roller pressing base 32 and the roller pressing wheel 31 set on the roller pressing base 32 in the Y-axis direction. Meanwhile, in order to ensure the stability of the roller pressing base 32 during the movement process when it is pushed by the roller pressing cylinder 41, a slide rail in the Y-axis direction is also provided on the upper mounting plate 42. The roller pressing base 32 is pushed by the roller pressing cylinder 41 to slide on the slide rail in the Y-axis direction. Since the roller pressing base 32 is small in size, preferably, only one slide rail in the Y-axis direction is provided on the upper mounting plate 42, and the slider that cooperates with the slide rail is provided at the bottom of the roller pressing base 32. The roller pressing base 32 slides on the upper mounting plate 42 through the cooperation of the slider and the slide rail.

[0059] When the roller pressing cylinder 41 pushes the roller pressing base 32 to move on the upper mounting plate 42, a cylinder positioning component 43 is also provided on the upper mounting plate 42, and a positioning block 44 corresponding to the cylinder positioning component 43 is provided on the roller pressing base 32. In this way, when the roller pressing cylinder 41 pushes the roller pressing base 32 to the restricted position on the upper mounting plate 42, it will be blocked by the cylinder positioning component 43, thus limiting the travel of the roller pressing base 32 on the upper mounting plate 42.

[0060] Reference Figure 7 The aforementioned buffer roller assembly 5 also includes a central mounting plate 51, with an upper mounting plate 42 mounted on the central mounting plate 51. The elastic buffer includes a buffer shaft 52 and a buffer spring 53. Both ends of the buffer shaft 52 are fixed to the central mounting plate 51, and a slider is also mounted on the buffer shaft 52, located between the two mounting ends. The upper mounting plate 42 is fixed to the slider and slides along the buffer shaft 52 with the slider. When the roller 31 rolls the side of the square lithium battery, the roller 31 applies force to the edge of the lithium battery on one side in the X-axis direction. To ensure the safety and stability of this pressure, a buffer spring 53 is installed between the mounting plate and the fixed end of the buffer shaft 52. The reaction force experienced by the roller 31 when rolling the lithium battery acts on the buffer spring 53, and the elastic force of the buffer spring 53 forms a buffer pressure on the roller 31 during the rolling process, allowing the roller 31 to perform stable and continuous rolling on the arc-shaped surface. The position of the buffer spring 53 is determined according to the direction of lithium battery feeding.

[0061] In addition, when the buffer spring 53 provides elastic cushioning to the upper mounting plate 42, it is too soft to limit the movement of the upper mounting plate 42. Therefore, a slide rail and a slider in the X-axis direction are also provided between the upper mounting plate 42 and the middle mounting plate 51. The slide rail is located on the middle mounting plate 51, and the slider is located at the bottom of the upper mounting plate 42. The upper mounting plate 42 slides elastically on the middle mounting plate 51 via the slide rail and the slider.

[0062] Reference Figure 7 The roller pressing adjustment assembly 6 includes an adjusting cylinder 61 and a lower mounting plate 62. Similar to the roller pressing drive assembly 4, the adjusting cylinder 61 is fixed on the lower mounting plate 62 and is located at one end of the lower mounting plate 62, while the middle mounting plate 51 is located above the upper mounting plate 42 and offset from the upper mounting plate 42 by one end. The adjusting cylinder 61 is installed at the position where the lower mounting plate 62 is offset from the roller pressing base 32, and the adjusting cylinder 61 can be mounted on the upper mounting plate 42 through the cylinder mounting seat.

[0063] Meanwhile, the lower mounting plate 62 is also provided with a Y-axis guide rail, and the bottom of the middle mounting plate 51 is provided with a slider. The middle mounting plate 51 slides on the lower mounting plate 62 through the cooperation of the guide rail and the slider. However, since there are many structures on the middle mounting plate 51, preferably, the lower mounting plate 62 is provided with two Y-axis guide rails, and the two guide rails cooperate with the two sliders at the bottom of the middle mounting plate 51 to slide.

[0064] The cylinder positioning component 43 on the roller pressing adjustment assembly 6 is located at the bottom of the middle mounting plate 51, and the lower mounting plate 62 is provided with a positioning block 44 corresponding to the cylinder positioning component 43. The cylinder positioning component 43 positions the adjusting cylinder 61 by interfering with the positioning block 44.

[0065] Reference Figure 5 , Figure 7 Since the height of the lithium battery is determined before the rolling process, the rolling roller 31 can be adjusted to a suitable position in the Z-axis direction before the rolling process. Therefore, a manually adjustable Z-axis adjustment component 7 is also provided at the bottom of the rolling adjustment component 6. The Z-axis adjustment component 7 is located at the bottom of the lower mounting plate 62.

[0066] Specifically, the Z-axis adjustment assembly 7 includes a bottom mounting plate 71 and a Z-axis adjustment bolt 72. The lower mounting plate 62 is mounted on the bottom mounting plate 71 via the Z-axis adjustment bolt 72. Thus, the distance between the lower mounting plate 62 and the bottom mounting plate 71 can be adjusted by adjusting the Z-axis adjustment bolt 72.

[0067] In addition, the Z-axis adjustment assembly 7 is also equipped with an adjustment scale block 73, which has scale lines and distances to indicate the adjustment distance of the Z-axis adjustment assembly 7. The adjustment scale block 73 is located on the bottom mounting plate 71 and is situated on the side of the lower mounting plate 62. This allows the adjustment distance to be clearly seen on the scale lines when adjusting the height of the lower mounting plate 62 using the adjusting bolts, facilitating control during the adjustment process.

[0068] The above is a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A roller pressing mechanism, characterized in that, include: The rolling module is provided in two sets, which are symmetrically arranged. The rolling module is provided with rolling rollers. The two sets of rolling rollers are used to roll the two arc-shaped sides on both sides of the square lithium battery and the short side in the middle of the two arc-shaped sides, respectively. An X-axis drive module is provided at the bottom of each of the two sets of roller pressing modules. The two sets of X-axis drive modules drive the two roller pressing modules in the X-axis direction respectively. The X-axis drive module includes an X-axis drive structure and an X-axis mounting plate. The X-axis drive structure is set on an X-axis base. Two sets of X-axis drive structures and X-axis mounting plates are provided on the X-axis base. The X-axis mounting plate is movable on the X-axis base through the X-axis drive structure. The roller pressing modules are set on the X-axis mounting plates. The Y-axis drive module is located at the bottom of the two X-axis drive modules and is used to drive the two rolling modules in the Y-axis direction simultaneously. The Y-axis drive module includes a Y-axis drive structure, a Y-axis slide plate, and a locking and fixing seat. The Y-axis drive structure is located on the locking and fixing seat, and the Y-axis slide plate is movably arranged on the locking and fixing seat along the Y-axis direction through the Y-axis drive structure. The X-axis base is located on the Y-axis slide plate. The rolling module includes a rolling assembly, a rolling drive assembly, a buffer rolling assembly, and a rolling adjustment assembly. The rolling assembly includes a rolling roller for rolling the edges of a square lithium battery. The rolling drive assembly is mounted on the rolling assembly and drives the rolling assembly in the Y-axis direction. The buffer rolling assembly is mounted on the rolling drive assembly and has an elastic buffer for buffering and adjusting the rolling pressure of the rolling assembly in the X-axis direction. The rolling adjustment assembly is mounted on the buffer rolling assembly and is used to adjust the position of the rolling assembly in the Y-axis direction.

2. The roller pressing mechanism according to claim 1, characterized in that, The X-axis drive structure includes an X-axis motor, an X-axis lead screw, and an X-axis lead screw nut. The X-axis motor and the X-axis lead screw are connected by a coupling. The X-axis lead screw nut is mounted on the X-axis lead screw and moves along the X-axis lead screw as it rotates. The X-axis mounting plate is mounted on the X-axis lead screw nut. The X-axis base is also provided with X-axis slide rails and X-axis sliders. Two X-axis slide rails are arranged side by side on the X-axis base. Both sets of X-axis drive structures are located between the two X-axis slide rails, and the two X-axis mounting plates are slidably connected to the two X-axis slide rails above the two sets of X-axis drive structures via X-axis sliders.

3. The roller pressing mechanism according to claim 2, characterized in that, The Y-axis drive structure includes a Y-axis motor, a Y-axis lead screw, and a Y-axis lead screw nut. The Y-axis motor is mounted on a locking base via a motor mount. The Y-axis lead screw is connected to the Y-axis motor via a coupling. The Y-axis lead screw nut is mounted on the Y-axis lead screw. The Y-axis slide plate is mounted on the Y-axis lead screw nut, and the Y-axis slide plate slides along the Y-axis lead screw nut.

4. The roller pressing mechanism according to claim 1, characterized in that, The roller pressing assembly further includes a roller pressing base, on which a roller mounting block is provided. The roller mounting block has a roller pressing shaft hole, and a roller pressing shaft is disposed within the roller pressing shaft hole. The roller pressing wheel is rotatably mounted within the roller pressing hole of the roller mounting block via an angle adjustment assembly and the roller pressing shaft. The roller pressing base also includes an encoder and a dust removal pipe. The encoder is mounted on one side of the roller mounting block via a side mounting plate and is connected to the roller pressing shaft via the side mounting plate. The dust removal pipe is mounted on the other side of the roller mounting block via a dust removal bracket, and the pipe opening of the dust removal pipe corresponds to the roller pressing wheel.

5. The roller pressing mechanism according to claim 4, characterized in that, The roller pressing drive assembly includes a roller pressing cylinder and an upper mounting plate. The roller pressing cylinder is fixed on the upper mounting plate, and the cylinder shaft of the roller pressing cylinder is connected to the roller pressing base in the Y-axis direction. The upper mounting plate is also provided with a slide rail in the Y-axis direction, and the roller pressing base is slidably mounted on the slide rail in the Y-axis direction by being pushed by the roller pressing cylinder.

6. The roller pressing mechanism according to claim 5, characterized in that, The buffer roller assembly also includes a middle mounting plate, and the elastic buffer is connected to the middle mounting plate and the upper mounting plate in the X-axis direction. The upper mounting plate is elastically positioned in the X-axis direction of the middle mounting plate.

7. The roller pressing mechanism according to claim 6, characterized in that, The elastic buffer includes a buffer shaft and a buffer spring. The two ends of the buffer shaft are fixed to the middle mounting plate, and the upper mounting plate is slidably disposed between the two fixed ends of the buffer shaft. The buffer spring is located between the upper mounting plate and either fixed end of the buffer shaft.

8. The roller pressing mechanism according to claim 6, characterized in that, A slide rail and a slider in the X-axis direction are also provided between the upper mounting plate and the middle mounting plate. The slide rail is set on the middle mounting plate, and the slider is set at the bottom of the upper mounting plate. The upper mounting plate slides elastically on the middle mounting plate through the slide rail and the slider.

9. The roller pressing mechanism according to claim 6, characterized in that, The roller pressing adjustment assembly includes an adjusting cylinder and a lower mounting plate. The adjusting cylinder is fixed on the lower mounting plate, and the cylinder shaft of the adjusting cylinder is connected to the middle mounting plate. The adjusting cylinder is used to drive the movement between the lower mounting plate and the middle mounting plate. The lower mounting plate is also provided with a Y-axis guide rail, and the bottom of the middle mounting plate is provided with a slider. The middle mounting plate slides on the lower mounting plate through the cooperation of the guide rail and the slider.

10. The roller pressing mechanism according to claim 9, characterized in that, The bottom of the middle mounting plate is also provided with a cylinder positioning component, and the lower mounting plate is provided with a positioning block corresponding to the cylinder positioning component. The cylinder positioning component positions the adjusting cylinder by interfering with the positioning block.

11. The roller pressing mechanism according to claim 9, characterized in that, The bottom of the lower mounting plate is also provided with a Z-axis adjustment component, which is used to adjust the position of the roller pressing adjustment component, the buffer roller pressing component, the roller pressing drive component, and the roller pressing component in the Z-axis direction.

12. The roller pressing mechanism according to claim 11, characterized in that, The Z-axis adjustment assembly includes a bottom mounting plate and a Z-axis adjustment bolt. The bottom mounting plate is mounted on the X-axis mounting plate via the Z-axis adjustment bolt. The Z-axis adjustment assembly also includes an adjustment scale block, which is located on the bottom mounting plate and on the side of the bottom mounting plate. The adjustment scale block is also provided with scale lines and distances, which are used to indicate the adjustment distance of the Z-axis adjustment assembly.

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