Placing frame for fast-charging lithium battery pole pieces

Abstract

The utility model provides a placing frame for fast-charging lithium battery pole pieces. The placing frame comprises a bottom plate, a first vertical plate and a second vertical plate, the length direction parallel to the bottom plate is the X direction, and the width direction parallel to the bottom plate is the Y direction; the first vertical plate and the second vertical plate are oppositely arranged and slidably mounted on the top face of the bottom plate, and a first driving device is arranged on the bottom plate and used for driving the first vertical plate and the second vertical plate to be close to or separated from each other in the Y direction. Vertical first angle iron and second angle iron are slidably mounted on the inner side face of the first vertical plate, and a second driving device is arranged on the first vertical plate and used for driving the first angle iron and the second angle iron to be close to or separated from each other in the X direction; vertical third angle iron and fourth angle iron are installed on the inner side face of the second vertical plate in a sliding mode, and a third driving device is arranged on the second vertical plate and used for driving the third angle iron and the fourth angle iron to be close to or separated from each other in the X direction; and the four angle irons are encircled together to form an accommodating cavity for placing a pole piece.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a placing frame for fast charging lithium battery electrodes. Background Art

[0002] Nowadays, soft-pack lithium-ion batteries are developing rapidly, and the market competition pressure is becoming increasingly fierce. In order to seize the market and meet market demands, shortening the production cycle of fast charging lithium batteries is one of the important factors.

[0003] The shape of the fast charging lithium battery electrode is as Figure 1 shown. For electrodes of different models, their lengths L and widths H are different, with different size specifications. Most fast charging lithium batteries adopt the stacked production process, which has a long process time, and a large amount of time and personnel are required for switching between models. Among them, the stacking process takes the most time.

[0004] The stacking process is to stack multiple electrodes neatly. The structure after stacking multiple electrodes is as Figure 2 shown. Currently, when stacking, a placing frame corresponding to the length L and width H of the electrode is often used, and the electrodes are placed in the placing frame one by one for stacking operations.

[0005] However, the size of the accommodating cavity in the current placing frame is fixed, that is, the size of the accommodating cavity in the placing frame corresponding to each specification of the electrode is fixed, which leads to the need to prepare a corresponding placing frame for each specification of the electrode.

[0006] Since the size of the accommodating cavity of the current placing frame cannot be adjusted, the problem is that the same placing frame cannot perform the stacking process for electrodes of different size specifications. Summary of the Utility Model

[0007] The main purpose of the utility model is to propose a placing frame for fast charging lithium battery electrodes, in which the length and width of the accommodating cavity in the placing frame can be adjusted to be applicable to the stacking process of electrodes of different size specifications, aiming to solve the above technical problems.

[0008] To achieve the above object, the present utility model provides a placement frame for fast-charging lithium battery electrodes, comprising a bottom plate, a first vertical plate and a second vertical plate; taking the long direction parallel to the bottom plate as the X direction and the wide direction parallel to the bottom plate as the Y direction; the first vertical plate and the second vertical plate are oppositely arranged and slidably mounted on the top surface of the bottom plate, and a first driving device is provided on the bottom plate for driving the first vertical plate and the second vertical plate to approach or separate from each other along the Y direction; a vertical first angle iron and a second angle iron are slidably mounted on the inner side surface of the first vertical plate, and a second driving device is provided on the first vertical plate for driving the first angle iron and the second angle iron to approach or separate from each other along the X direction; a vertical third angle iron and a fourth angle iron are slidably mounted on the inner side surface of the second vertical plate, and a third driving device is provided on the second vertical plate for driving the third angle iron and the fourth angle iron to approach or separate from each other along the X direction; the first angle iron, the second angle iron, the third angle iron and the fourth angle iron jointly enclose an accommodation cavity for placing the electrodes.

[0009] Preferably, a plurality of T-shaped grooves parallel to the Y direction are provided on the bottom plate, and a slider is slidably mounted in each T-shaped groove; a first connecting plate is integrally formed at the lower end position of the outer side surface of the first vertical plate, and the first connecting plate is connected to the slider in the corresponding T-shaped groove at the bottom thereof by screws; the lower surface of the first connecting plate is slidably engaged with the top surface of the bottom plate; a second connecting plate is integrally formed at the lower end position of the outer side surface of the second vertical plate, and the second connecting plate is connected to the slider in the corresponding T-shaped groove at the bottom thereof by screws; the lower surface of the second connecting plate is slidably engaged with the top surface of the bottom plate.

[0010] Preferably, the first driving device comprises a first support, a first servo motor and a first double-headed screw; the thread directions of the left half and the right half of the first double-headed screw are opposite; the support is welded on the side surface of the bottom plate, and the first servo motor is mounted on the top of the support; the output shaft of the first servo motor is connected to the first double-headed screw by a coupling; the left half of the first double-headed screw is screwed on the first vertical plate, and the right half of the first double-headed screw is screwed on the second vertical plate.

[0011] Preferably, the second driving device comprises a second support, a second servo motor and a second double-headed screw; the second support is welded on the outer side surface of the first vertical plate, the second servo motor is mounted in the inner hole of the second support, and the output shaft of the second servo motor is connected to the second double-headed screw by a coupling; the thread directions of both ends of the second double-headed screw are opposite; the second double-headed screw is parallel to the X direction; a rectangular hole is provided on the first vertical plate, and a first screw seat is welded on the first angle iron; a second screw seat is welded on the second angle iron; both the first screw seat and the second screw seat extend out of the rectangular hole of the first vertical plate; one end of the second double-headed screw is screwed on the first screw seat, and the other end is screwed on the second screw seat.

[0012] Preferably, the third driving device includes a third support, a third servo motor, and a third double-headed screw; the third support is welded to the outer side surface of the second vertical plate, the third servo motor is installed in the inner hole of the third support, and the output shaft of the third servo motor is connected to the third double-headed screw through a coupling; the thread directions at both ends of the third double-headed screw are opposite; the third double-headed screw is parallel to the X direction; a rectangular hole is provided on the second vertical plate, and a third screw seat is welded on the third angle iron; a fourth screw seat is welded on the fourth angle iron; both the third screw seat and the fourth screw seat extend out from the rectangular hole of the second vertical plate; one end of the third double-headed screw is screwed onto the third screw seat, and the other end is screwed onto the fourth screw seat.

[0013] Preferably, the placement frame further includes a plurality of pads with different size specifications, and the pads are used to be placed in the accommodating cavity, and the lower surface of the pad abuts against the top surface of the bottom plate.

[0014] Preferably, a plurality of chutes are respectively provided on the first vertical plate and the second vertical plate, and the chutes are parallel to the X direction; strip-shaped sliders are respectively provided on the first angle iron, the second angle iron, the third angle iron, and the fourth angle iron; the strip-shaped sliders on the first angle iron and the second angle iron are respectively slidably installed in the chutes of the first vertical plate, and the strip-shaped sliders on the third angle iron and the fourth angle iron are respectively slidably installed in the chutes of the second vertical plate; and limit screws are screwed on the strip-shaped sliders.

[0015] Preferably, the number of chutes provided on the first vertical plate is two, and the number of chutes provided on the second vertical plate is also two.

[0016] Preferably, a plurality of relief holes are provided on the bottom plate, and the relief holes include a plurality of circular holes and a plurality of rectangular holes; rubber pads are pasted on the inner surfaces of the first angle iron, the second angle iron, the third angle iron, and the fourth angle iron.

[0017] Preferably, a first scale is provided at the edge position of the top surface of the bottom plate, and the first scale is arranged along the width direction of the bottom plate; a second scale is provided on the top surface of the first vertical plate; a third scale is provided on the top surface of the second vertical plate.

[0018] Due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0019] (1) In the present utility model, since the first vertical plate and the second vertical plate are oppositely arranged and slidably mounted on the top surface of the bottom plate, and a vertical first angle iron and a second angle iron are slidably mounted on the inner side surface of the first vertical plate, and a vertical third angle iron and a fourth angle iron are slidably mounted on the inner side surface of the second vertical plate. During use, a first driving device is used to drive the first vertical plate and the second vertical plate to approach or separate from each other along the Y direction, a second driving device is used to drive the first angle iron and the second angle iron to approach or separate from each other along the X direction, and a third driving device is used to drive the third angle iron and the fourth angle iron to approach or separate from each other along the X direction. Thus, the width and length of the accommodating cavity can be adjusted. Since the size of the accommodating cavity of the placement frame provided by the present utility model can be adjusted, the same placement frame can be applicable to the lamination process of pole pieces of different size specifications.

[0020] (2) In the present utility model, the first driving device, the second driving device, and the third driving device all adopt a driving structure formed by a servo motor and a double-headed screw rod, and the positive and reverse rotation of the servo motor is used to adjust the size of the accommodating cavity in the placement frame. It is easy to electrically connect the servo motor with the existing machine tool to achieve the purpose of automatic adjustment.

[0021] (3) In the present utility model, a first scale is provided to facilitate observing the spacing distance between the first vertical plate and the second vertical plate, a second scale is provided to facilitate observing the spacing distance between the first angle iron and the second angle iron, and a third scale is provided to facilitate observing the spacing distance between the third angle iron and the fourth angle iron. When adjusting the size of the accommodating cavity on the placement frame, the first scale, the second scale, and the third scale can be used to intuitively see the size of the accommodating cavity.

[0022] (4) Using a servo motor to adjust the size of the accommodating cavity can reduce manual debugging and reduce the errors caused by manual operation. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0024] Figure 1 It is a schematic diagram of the shape of the pole piece for a fast-charging lithium battery;

[0025] Figure 2 It is a schematic diagram after stacking multiple pole pieces;

[0026] Figure 3Schematic diagram of the three-dimensional structure of the placement frame provided by the present utility model;

[0027] Figure 4 Bottom view of the placement frame provided by the present utility model;

[0028] Figure 5 Schematic diagram of four angle irons and corresponding driving devices in the present utility model;

[0029] Figure 6 Schematic diagram of the structure of the bottom plate in the present utility model;

[0030] Figure 7 Schematic diagram after multiple pole pieces are stacked in the placement frame provided by the present utility model.

[0031] Explanation of the attached drawing reference numerals: 1. Bottom plate; 1a. T-shaped groove; 1b. Lightening hole; 2a. First vertical plate; 2b. Second vertical plate; 3a. First angle iron; 3b. Second angle iron; 3c. Third angle iron; 3d. Fourth angle iron; 4. First double-headed screw; 5. First support; 6. First servo motor; 7a. First screw seat; 7b. Second screw seat; 7c. Third screw seat; 7d. Fourth screw seat; 8. Accommodation cavity; 9. Slide block; 10a. First connecting plate; 10b. Second connecting plate; 11. Second double-headed screw; 12. Second servo motor; 13. Second support; 14. Third double-headed screw; 15. Third servo motor; 16. Third support; 17. Pad; 18. Slide groove; 19. Strip-shaped slide block; 20a. First scale; 20b. Second scale; 20c. Third scale. Specific implementation manners

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0034] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] Combined with Figures 3 to 6 As shown, it is a specific embodiment of a placement frame for a fast-charging lithium battery electrode provided by the present utility model. The placement frame includes a bottom plate 1, a first vertical plate 2a, and a second vertical plate 2b. The long direction parallel to the bottom plate 1 is the X direction, and the wide direction parallel to the bottom plate 1 is the Y direction. The first vertical plate 2a and the second vertical plate 2b are oppositely arranged and slidably mounted on the top surface of the bottom plate 1. A first driving device is provided on the bottom plate 1 to drive the first vertical plate 2a and the second vertical plate 2b to approach or separate from each other along the Y direction. Vertically arranged first angle irons 3a and second angle irons 3b are slidably mounted on the inner side surface of the first vertical plate 2a. A second driving device is provided on the first vertical plate 2a to drive the first angle irons 3a and the second angle irons 3b to approach or separate from each other along the X direction. Vertically arranged third angle irons 3c and fourth angle irons 3d are slidably mounted on the inner side surface of the second vertical plate 2b. A third driving device is provided on the second vertical plate 2b to drive the third angle irons 3c and the fourth angle irons 3d to approach or separate from each other along the X direction. The inner sides of the corners of the first angle irons 3a, the second angle irons 3b, the third angle irons 3c, and the fourth angle irons 3d are oppositely arranged, jointly enclosing an accommodation cavity 8 for placing the electrode.

[0036] By adopting the above structure, during use, the first driving device is used to drive the first vertical plate 2a and the second vertical plate 2b to approach or separate from each other along the Y direction, the second driving device is used to drive the first angle irons 3a and the second angle irons 3b to approach or separate from each other along the X direction, and the third driving device is used to drive the third angle irons 3c and the fourth angle irons 3d to approach or separate from each other along the X direction, thereby the width and length of the accommodation cavity 8 can be adjusted. Since the size of the accommodation cavity 8 can be adjusted, the same placement frame can be applicable to electrode sheets of different size specifications for the lamination process.

[0037] Combined with Figure 3 、 Figure 4As shown, a plurality of T-shaped grooves 1a parallel to the Y direction are provided on the bottom plate 1, and sliders 9 are slidably installed in each T-shaped groove 1a; a first connecting plate 10a is integrally formed at the lower end position of the outer side surface of the first vertical plate 2a, and the first connecting plate 10a and the slider 9 in the corresponding T-shaped groove 1a at its bottom are connected by screws; the lower surface of the first connecting plate 10a is slidably matched with the top surface of the bottom plate 1; a second connecting plate 10b is integrally formed at the lower end position of the outer side surface of the second vertical plate 2b, and the second connecting plate 10b and the slider 9 in the corresponding T-shaped groove 1a at its bottom are connected by screws; the lower surface of the second connecting plate 10b is slidably matched with the top surface of the bottom plate 1.

[0038] Combined with Figure 3 As shown, the first driving device includes a first support 5, a first servo motor 6 and a first double-headed screw 4; the thread directions of the left half and the right half of the first double-headed screw 4 are opposite; the support 5 is welded on the side surface of the bottom plate 1, and the first servo motor 6 is installed on the top of the support 5; the output shaft of the first servo motor 6 is connected to the first double-headed screw 4 through a coupling; the left half of the first double-headed screw 4 is screwed on the first vertical plate 2a, and the right half of the first double-headed screw 4 is screwed on the second vertical plate 2b. By driving the first double-headed screw 4 to rotate forward or backward with the first servo motor 6, the first vertical plate 2a and the second vertical plate 2b can be driven to approach or separate from each other along the Y direction, so as to achieve the function of adjusting the width of the accommodation cavity 8.

[0039] Combined with Figure 3As shown, the second driving device includes a second support 13, a second servo motor 12 and a second double-headed screw 11; the second support 13 is welded to the outer side surface of the first vertical plate 2a, the second servo motor 12 is installed in the inner hole of the second support 13, and the output shaft of the second servo motor 12 is connected to the second double-headed screw 11 through a coupling; the thread directions at both ends of the second double-headed screw 11 are opposite; the second double-headed screw 11 is parallel to the X direction; a rectangular hole is provided on the first vertical plate 2a, and a first screw seat 7a is welded on the first angle iron 3a; a second screw seat 7b is welded on the second angle iron 3b; both the first screw seat 7a and the second screw seat 7b protrude from the rectangular hole of the first vertical plate 2a; one end of the second double-headed screw 11 is screwed onto the first screw seat 7a, and the other end is screwed onto the second screw seat 7b. Further, the third driving device includes a third support 16, a third servo motor 15 and a third double-headed screw 14; the third support 16 is welded to the outer side surface of the second vertical plate 2b, the third servo motor 15 is installed in the inner hole of the third support 16, and the output shaft of the third servo motor 15 is connected to the third double-headed screw 14 through a coupling; the thread directions at both ends of the third double-headed screw 14 are opposite; the third double-headed screw 14 is parallel to the X direction; a rectangular hole is provided on the second vertical plate 2b, and a third screw seat 7c is welded on the third angle iron 3c; a fourth screw seat 7d is welded on the fourth angle iron 3d; both the third screw seat 7c and the fourth screw seat 7d protrude from the rectangular hole of the second vertical plate 2b; one end of the third double-headed screw 14 is screwed onto the third screw seat 7c, and the other end is screwed onto the fourth screw seat 7d.

[0040] By driving the second double-headed screw 11 to rotate forward or backward with the second servo motor 12, the first angle iron 3a and the second angle iron 3b can be driven to approach or separate from each other along the X direction. Similarly, by driving the third double-headed screw 14 to rotate forward or backward with the third servo motor 15, the third angle iron 3c and the fourth angle iron 3d can be driven to approach or separate from each other along the X direction, and thus the length of the accommodation cavity 8 can be adjusted.

[0041] Combined with Figure 3 As shown, the placement frame further includes a plurality of pads 17 with different size specifications. The pads 17 are used to be placed in the accommodation cavity 8, and the lower surface of the pads 17 abuts against the top surface of the bottom plate 1. When the width and length of the accommodation cavity 8 are adjusted in place, the pads 17 with corresponding specifications are placed at the bottom of the accommodation cavity 8 to play a supporting role. Combined with Figure 7 As shown, after the pole pieces are laminated, the ejector rod on the machine tool can be used to push against the pads 17 to push out the stacked pole pieces upward together.

[0042] Combined with Figure 3As shown, a plurality of sliding grooves 18 are respectively provided on the first vertical plate 2a and the second vertical plate 2b, and the sliding grooves 18 are parallel to the X direction; strip-shaped sliders 19 are respectively provided on the first angle iron 3a, the second angle iron 3b, the third angle iron 3c, and the fourth angle iron 3d; the strip-shaped sliders 19 on the first angle iron 3a and the second angle iron 3b are respectively slidably installed in the sliding grooves 18 of the first vertical plate 2a, and the strip-shaped sliders 19 on the third angle iron 3c and the fourth angle iron 3d are respectively slidably installed in the sliding grooves 18 of the second vertical plate 2b; and limit screws are screwed on the strip-shaped sliders 19. By using the limit screws, the strip-shaped sliders 19 are prevented from falling off the corresponding vertical plates. Further, in order to ensure the stability of the movement of each angle iron, the number of sliding grooves 18 provided on the first vertical plate 2a is two, and the number of sliding grooves 18 provided on the second vertical plate 2b is also two.

[0043] Combined with Figure 6 As shown, a plurality of relief holes 1b are provided on the bottom plate 1, which play a role in weight reduction. The relief holes 1b include a plurality of circular holes and a plurality of rectangular holes.

[0044] Combined with Figure 3 And Figure 7 As shown, rubber pads are pasted on the inner surfaces of the first angle iron 3a, the second angle iron 3b, the third angle iron 3c, and the fourth angle iron 3d. The function of setting the rubber pads is to protect the stacked pole pieces.

[0045] Combined with Figure 3 As shown, a first scale 20a is provided at the edge position of the top surface of the bottom plate 1, and the first scale 20a is arranged along the width direction of the bottom plate 1; a second scale 20b is provided on the top surface of the first vertical plate 2a; a third scale 20c is provided on the top surface of the second vertical plate 2b. By setting the first scale 20a, it is convenient to observe the distance between the first vertical plate 2a and the second vertical plate 2b. By setting the second scale 20b, it is convenient to observe the distance between the first angle iron 3a and the second angle iron 3b. By setting the third scale 20c, it is convenient to observe the distance between the third angle iron 3c and the fourth angle iron 3d. When adjusting the size of the accommodation cavity 8 on the placement frame, the first scale 20a, the second scale 20b, and the third scale 20c can be used to intuitively see the size of the accommodation cavity 8.

[0046] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A placement frame for a fast-charging lithium battery electrode sheet, characterized in that, It includes a bottom plate (1), a first vertical plate (2a) and a second vertical plate (2b); taking the long direction parallel to the bottom plate (1) as the X direction and the wide direction parallel to the bottom plate (1) as the Y direction; The first vertical plate (2a) and the second vertical plate (2b) are oppositely arranged and slidably mounted on the top surface of the bottom plate (1). A first driving device is provided on the bottom plate (1) for driving the first vertical plate (2a) and the second vertical plate (2b) to approach or separate from each other along the Y direction; Vertically arranged first angle irons (3a) and second angle irons (3b) are slidably mounted on the inner side surface of the first vertical plate (2a). A second driving device is provided on the first vertical plate (2a) for driving the first angle irons (3a) and the second angle irons (3b) to approach or separate from each other along the X direction; Vertically arranged third angle irons (3c) and fourth angle irons (3d) are slidably mounted on the inner side surface of the second vertical plate (2b). A third driving device is provided on the second vertical plate (2b) for driving the third angle irons (3c) and the fourth angle irons (3d) to approach or separate from each other along the X direction; The first angle irons (3a), the second angle irons (3b), the third angle irons (3c) and the fourth angle irons (3d) jointly enclose a receiving cavity (8) for placing the pole piece.

2. The placement frame of the fast-charging lithium battery electrode sheet according to claim 1, characterized in that: A plurality of T-shaped grooves (1a) parallel to the Y direction are provided on the bottom plate (1), and a slider (9) is slidably mounted in each T-shaped groove (1a); A first connecting plate (10a) is integrally formed at the lower end position of the outer side surface of the first vertical plate (2a). The first connecting plate (10a) is connected to the slider (9) in the corresponding T-shaped groove (1a) at its bottom by screws; the lower surface of the first connecting plate (10a) is in sliding fit with the top surface of the bottom plate (1); A second connecting plate (10b) is integrally formed at the lower end position of the outer side surface of the second vertical plate (2b). The second connecting plate (10b) is connected to the slider (9) in the corresponding T-shaped groove (1a) at its bottom by screws; the lower surface of the second connecting plate (10b) is in sliding fit with the top surface of the bottom plate (1).

3. The placement frame for the fast-charging lithium battery electrode sheet according to claim 1, characterized in that: The first driving device includes a first support (5), a first servo motor (6) and a first double-headed screw (4); the thread directions of the left half and the right half of the first double-headed screw (4) are opposite; the support (5) is welded on the side surface of the bottom plate (1), and the first servo motor (6) is installed on the top of the support (5); the output shaft of the first servo motor (6) is connected to the first double-headed screw (4) through a coupling; the left half of the first double-headed screw (4) is screwed on the first vertical plate (2a), and the right half of the first double-headed screw (4) is screwed on the second vertical plate (2b).

4. The placement frame for the fast-charging lithium battery electrode sheet according to claim 1, characterized in that: The second driving device includes a second support (13), a second servo motor (12) and a second double-headed screw (11); The second support (13) is welded to the outer side surface of the first vertical plate (2a). The second servo motor (12) is installed in the inner hole of the second support (13). The output shaft of the second servo motor (12) is connected to the second double-headed screw (11) through a coupling. The thread directions at both ends of the second double-headed screw (11) are opposite. The second double-headed screw (11) is parallel to the X direction. A rectangular hole is provided in the first vertical plate (2a). A first screw seat (7a) is welded to the first angle iron (3a). A second screw seat (7b) is welded to the second angle iron (3b). Both the first screw seat (7a) and the second screw seat (7b) protrude from the rectangular hole of the first vertical plate (2a). One end of the second double-headed screw (11) is screwed onto the first screw seat (7a), and the other end is screwed onto the second screw seat (7b).

5. The placement frame for the fast-charging lithium battery electrode sheet according to claim 1, characterized in that: The third driving device includes a third support (16), a third servo motor (15), and a third double-headed screw (14). The third support (16) is welded to the outer side surface of the second vertical plate (2b). The third servo motor (15) is installed in the inner hole of the third support (16). The output shaft of the third servo motor (15) is connected to the third double-headed screw (14) through a coupling. The thread directions at both ends of the third double-headed screw (14) are opposite. The third double-headed screw (14) is parallel to the X direction. A rectangular hole is provided in the second vertical plate (2b). A third screw seat (7c) is welded to the third angle iron (3c). A fourth screw seat (7d) is welded to the fourth angle iron (3d). Both the third screw seat (7c) and the fourth screw seat (7d) protrude from the rectangular hole of the second vertical plate (2b). One end of the third double-headed screw (14) is screwed onto the third screw seat (7c), and the other end is screwed onto the fourth screw seat (7d).

6. The placement frame for the fast-charging lithium battery electrode sheet according to claim 1, characterized in that: It further includes a plurality of pads (17) with different size specifications. The pads (17) are used to be placed in the accommodation cavity (8), and the lower surface of the pads (17) abuts against the top surface of the bottom plate (1).

7. The placement frame for the fast-charging lithium battery electrode sheet according to claim 1, wherein: A plurality of sliding grooves (18) are respectively provided on the first vertical plate (2a) and the second vertical plate (2b), and the sliding grooves (18) are parallel to the X direction. Strip-shaped sliders (19) are respectively provided on the first angle iron (3a), the second angle iron (3b), the third angle iron (3c), and the fourth angle iron (3d). The strip-shaped sliders (19) on the first angle iron (3a) and the second angle iron (3b) are respectively slidably installed in the sliding grooves (18) of the first vertical plate (2a). The strip-shaped sliders (19) on the third angle iron (3c) and the fourth angle iron (3d) are respectively slidably installed in the sliding grooves (18) of the second vertical plate (2b). And limit screws are screwed onto the strip-shaped sliders (19).

8. The placement frame for the fast-charging lithium battery electrode sheet according to claim 7, characterized in that: The number of sliding grooves (18) provided on the first vertical plate (2a) is two, and the number of sliding grooves (18) provided on the second vertical plate (2b) is also two.

9. The placement frame for the fast-charging lithium battery electrode sheet according to claim 1, characterized in that: A plurality of relief holes (1b) are provided on the bottom plate (1), and the relief holes (1b) include a plurality of circular holes and a plurality of rectangular holes; rubber pads are pasted on the inner surfaces of the first angle iron (3a), the second angle iron (3b), the third angle iron (3c) and the fourth angle iron (3d).

10. The placement frame for the fast-charging lithium battery electrode sheet according to claim 1, characterized in that: A first scale (20a) is provided at the edge position of the top surface of the bottom plate (1), and the first scale (20a) is arranged along the width direction of the bottom plate (1); a second scale (20b) is provided on the top surface of the first vertical plate (2a); a third scale (20c) is provided on the top surface of the second vertical plate (2b).

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