Battery clamp and battery clamping method

Abstract

The invention belongs to the technical field of battery production, and discloses a battery clamp and a battery clamping method. The battery clamp comprises a clamp seat and two groups of clamping assemblies which are oppositely arranged, wherein the clamp seat is provided with a first driving mechanism; the clamping assemblies are arranged on the clamp base, and the two clamping assemblies are connected to the output end of the first driving mechanism so that the two clamping assemblies can clamp a single battery. The clamping assembly comprises a first clamping mechanism and a second clamping mechanism, the first clamping mechanism can move in the vertical direction, and the first clamping mechanism is provided with an accommodating part for accommodating a battery pole of a single battery; the two second clamping mechanisms are used for clamping and fixing the single batteries placed in the first direction, and the two first clamping mechanisms are used for clamping and fixing the single batteries placed in the second direction. The battery clamp can be used for clamping and fixing a single battery from different directions, and also can be used for shielding and protecting a battery pole, so that the damage to the battery pole in the production process is avoided, and the production quality and the yield are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and in particular to a battery clamp and a battery clamping method. Background Art

[0002] In the battery production process, automated equipment is often used, such as battery filling, laser welding, battery transportation and battery cleaning processes, in which fixtures are inevitably used to fix and position the battery to improve production efficiency. Existing battery fixtures only clamp and fix the battery, and cannot shield and protect the pole parts on the battery, which can easily cause damage to the pole during the production process.

[0003] For example, when the battery is welded, since the distance between the pole and the weld is very close, conventional welding methods will cause the welding material to splash onto the pole, thus affecting the quality of the pole; in addition, after the lithium battery is filled with liquid, due to problems such as spraying and dripping of residual liquid, there will be residual electrolyte on the top cover assembly of the battery cell, and the battery needs to be cleaned. The equipment brush head during the cleaning process will also cause damage to the pole.

[0004] Therefore, there is an urgent need to provide a new type of battery clamp and battery clamping method to solve the above-mentioned technical problems in the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a battery clamp that can clamp and fix single cells from different directions, and can also shield and protect battery poles, thereby avoiding damage to the battery poles during the production process and improving production quality and yield rate.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The battery clamp comprises a clamp seat and two groups of clamping assemblies arranged opposite to each other, the clamp seat is provided with a first driving mechanism; the clamping assembly is arranged on the clamp seat, and the two groups of the clamping assemblies are connected to the output end of the first driving mechanism so that the two groups of the clamping assemblies can clamp and fix the single battery; the clamping assembly comprises a first clamping mechanism and a second clamping mechanism, the first clamping mechanism is arranged between the single battery and the second clamping mechanism, the first clamping mechanism can move in a vertical direction, and the first clamping mechanism is provided with a accommodating portion for accommodating the battery pole of the single battery; wherein the two second clamping mechanisms are used to clamp and fix the single battery placed along the first direction, and the two first clamping mechanisms are used to clamp and fix the single battery placed along the second direction, and the first direction is perpendicular to the second direction.

[0008] Optionally, the first driving mechanism includes a first driving member, a driving plate and two connecting rods, the driving plate is connected to the output end of the first driving member and can move along the second direction, one end of the two connecting rods is connected one-to-one to the side walls at both ends of the driving plate along the first direction, and the other end is connected one-to-one to the clamping assembly.

[0009] Optionally, any one of the bottom wall of the driving plate and the top wall of the clamp seat is provided with a first guide rail extending along the second direction, and the other is provided with a first sliding block slidably connected to the first guide rail.

[0010] Optionally, the first driving mechanism further comprises a first elastic member, one end of the first elastic member is fixedly connected to the clamp seat, and the other end of the first elastic member is fixedly connected to the driving plate.

[0011] Optionally, in the above-mentioned clamping assembly of the same group, the above-mentioned first clamping mechanism is fixedly connected to the above-mentioned second clamping mechanism through a sliding fixing plate.

[0012] Optionally, any one of the bottom wall of the sliding fixing plate and the top wall of the clamp seat is provided with a second guide rail extending along the first direction, and the other is provided with a second sliding block slidably connected to the second guide rail.

[0013] Optionally, the battery clamp further comprises a supporting plate, the bottom of the supporting plate is fixed to the top wall of the clamp seat via a fixing column, the driving plate is provided with an avoidance hole for the fixing column to pass through, and the avoidance hole is extended along the second direction.

[0014] Optionally, the first clamping mechanism includes a first clamping plate, the first clamping plate is provided with the accommodating portion, either one of the first clamping plate and the clamp seat is provided with a third guide rail extending in a vertical direction, and the other is provided with a third slider slidably connected to the third guide rail.

[0015] Optionally, the first clamping mechanism further comprises a second elastic member, one end of the second elastic member is connected to the first clamping plate, and the other end of the second elastic member is connected to the clamp seat.

[0016] Another object of the present invention is to provide a battery clamping method, which uses a battery clamp as described in any of the above schemes, including the following steps: S1, the battery clamp is transported to the loading position, and the first driving mechanism drives the two groups of the clamping components to move away from each other; S2, the single battery is placed in the battery clamp along the second direction, the first clamping mechanism clamps and fixes the single battery, and the battery pole is accommodated in the accommodating portion; S3, the battery clamp with the single battery clamped is transported to the flipping position, and the first driving mechanism drives the two clamping components to move away from each other; S4, the flipping mechanism flips the single battery to be placed along the first direction, and the first clamping mechanism moves downward so that the second clamping mechanism clamps and fixes the single battery.

[0017] Beneficial effects:

[0018] The battery clamp in the present invention comprises a clamp seat and two groups of clamping assemblies arranged opposite to each other, each group of clamping assemblies comprises a first clamping mechanism and a second clamping mechanism, the first clamping mechanism is used to clamp and fix the single battery placed along the second direction, the second clamping mechanism is used to clamp and fix the above-mentioned single battery placed along the first direction, and the first clamping mechanism is provided with a receiving portion for accommodating the battery pole, so that the first clamping mechanism can protect the battery pole when clamping and fixing the single battery, avoid damage to the battery pole during the production process, and improve the production quality and yield rate; at the same time, the first clamping mechanism and the second clamping mechanism are both connected to the output end of the first driving mechanism, so that the two first clamping mechanisms and the two second clamping mechanisms are correspondingly close to or far away, and when the second clamping mechanism clamps and fixes the single battery, the first clamping mechanism can be lowered, which will not affect the load on the single battery, thereby realizing the clamping and fixing function of the clamping assembly for the single battery placed in different directions, and the operation is simple and convenient, which can improve the clamping efficiency and limit the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an axonometric view of a battery clamp provided in a specific embodiment of the present invention;

[0020] Figure 2 is an axonometric diagram of a battery clamp provided by a specific embodiment of the present invention clamping a single battery along a first direction;

[0021] Figure 3 is an axonometric diagram of a battery clamp provided by a specific embodiment of the present invention clamping a single battery along a second direction;

[0022] Figure 4 It is an axonometric diagram of a battery clamp provided by a specific embodiment of the present invention with part of the structure hidden.

[0023] In the figure:

[0024] 10. Single battery; 11. Battery pole; 20. Suspension rail;

[0025] 100, fixture seat; 110, first driving mechanism; 111, driving plate; 112, connecting rod; 113, first elastic member; 114, avoidance hole; 115, first guide rail; 116, first slider;

[0026] 200, clamping assembly; 210, first clamping mechanism; 211, accommodating portion; 212, first clamping plate; 213, third guide rail; 214, third slider; 215, second elastic member; 220, second clamping mechanism; 221, sliding fixing plate; 222, second guide rail; 223, second slider; 230, bearing plate; 231, fixing column. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0031] In this embodiment, the first direction is Figures 1 to 4 The X direction shown in FIG. 1 is the length direction of the fixture seat 100 and the extension direction of the suspension guide rail 20. The second direction is Figures 1 to 4 The Y direction shown in FIG. 1 is the width direction of the clamp seat 100 , and the first direction is perpendicular to the second direction.

[0032] like Figures 1 to 3 As shown, the battery clamp comprises a clamp seat 100 and two groups of clamping assemblies 200 arranged opposite to each other, the clamp seat 100 is provided with a first driving mechanism 110; the clamping assembly 200 is arranged on the clamp seat 100, and the two groups of the clamping assemblies 200 are connected to the output end of the first driving mechanism 110, so that the two groups of the clamping assemblies 200 are relatively close to or away from each other along a first direction, and the two clamping assemblies 200 can clamp and fix the single battery 10 when they are close to each other; the clamping assembly 200 comprises a first clamping mechanism 210 and a second clamping mechanism 220, and the first clamping mechanism 210 and the second clamping mechanism 220 are provided with a first driving mechanism 110; the clamping assembly 200 is provided on the clamp seat 100, and the two groups of the clamping assemblies 200 are connected to the output end of the first driving mechanism 110, so that the two groups of the clamping assemblies 200 are relatively close to or away from each other along a first direction, and the two clamping assemblies 200 are able to clamp and fix the single battery 10; the clamping assembly 200 comprises a first clamping mechanism 210 and a second clamping mechanism 220, and the first clamping mechanism 210 and the second clamping mechanism 220 are provided with a first driving mechanism 1 ... A clamping mechanism 210 is arranged between the above-mentioned single battery 10 and the above-mentioned second clamping mechanism 220, the above-mentioned first clamping mechanism 210 can move in the vertical direction, and the above-mentioned first clamping mechanism 210 is provided with a receiving portion 211 for receiving the battery pole 11 of the above-mentioned single battery 10; wherein, the two above-mentioned second clamping mechanisms 220 are used to clamp and fix the above-mentioned single battery 10 placed along the above-mentioned first direction, and the two above-mentioned first clamping mechanisms 210 are used to clamp and fix the above-mentioned single battery 10 placed along the above-mentioned second direction, and the above-mentioned first direction is perpendicular to the above-mentioned second direction.

[0033] It should be noted that when the single cell 10 is placed along the first direction, the length direction of the single cell 10 is parallel to the first direction, and the plane where the battery pole 11 of the single cell 10 is located is parallel to the first direction and perpendicular to the second direction; and when the single cell 10 is placed along the second direction, the length direction of the single cell 10 is parallel to the second direction, and the plane where the battery pole 11 of the single cell 10 is located is parallel to the second direction and perpendicular to the first direction.

[0034] The accommodating portion 211 in this embodiment is a groove or hole structure. In this embodiment, the accommodating groove is selected to accommodate the battery pole 11. Of course, it can also be a through hole or a blind hole. As long as it plays a role in avoiding and accommodating the battery pole 11, there is no specific limitation here.

[0035] The battery clamp in this embodiment includes a clamp seat 100 and two groups of clamping assemblies 200 arranged opposite to each other, each group of clamping assemblies 200 includes a first clamping mechanism 210 and a second clamping mechanism 220, the first clamping mechanism 210 is used to clamp and fix the single battery 10 placed along the second direction, the second clamping mechanism 220 is used to clamp and fix the above-mentioned single battery 10 placed along the first direction, and the first clamping mechanism 210 is provided with a receiving portion 211 for accommodating the battery pole 11, so that the first clamping mechanism 210 can protect the battery pole 11 when clamping and fixing the single battery 10, thereby avoiding the damage to the battery pole 11 during the production process. The damage of the battery pole 11 is improved, and the production quality and yield rate are improved; at the same time, the first clamping mechanism 210 and the second clamping mechanism 220 are both connected to the output end of the first driving mechanism 110, so that the two first clamping mechanisms 210 and the two second clamping mechanisms 220 are correspondingly close to or far away. When the second clamping mechanism 220 clamps and fixes the single battery 10, the first clamping mechanism 210 can be lowered, which will not affect the load on the single battery 10, thereby realizing the clamping and fixing function of the clamping assembly 200 for the single battery 10 placed in different directions. The operation is simple and convenient, which can improve the clamping efficiency and limit the production cost.

[0036] It should be noted that when the second clamping mechanism 220 clamps and fixes the single battery 10, there are multiple ways for the first clamping mechanism 210 to descend. One of them can be an active method in which a driving member is used to drive the first clamping mechanism 210 to descend, or it can be a passive method in which the single battery 10 presses down the first clamping mechanism 210 to descend. The specific structure of the first clamping mechanism 210 adopting the passive descending method is described in detail below.

[0037] like Figure 1 and Figure 2 As shown, the first clamping mechanism 210 includes a first clamping plate 212, the first clamping plate 212 is provided with the accommodating portion 211, and either the first clamping plate 212 or the clamp seat 100 is provided with a third guide rail 213 extending in the vertical direction, and the other is provided with a third slider 214 slidably connected to the third guide rail 213. In this embodiment, the first clamping plate 212 is provided with the third guide rail 213, and the clamp seat 100 is provided with the third slider 214. The third guide rail 213 and the third slider 214 cooperate with each other, so that the first clamping plate 212 can slide up and down smoothly, and guide the movement of the third clamping plate.

[0038] Furthermore, the first clamping mechanism 210 also includes a second elastic member 215, one end of the second elastic member 215 is connected to the first clamping plate 212, and the other end is connected to the clamp seat 100. It should be noted that. In this embodiment, the first clamping mechanism 210 is lowered passively, that is, the first clamping plate 212 is pressed downward along the third guide rail using the single cell 10. At this time, the second clamping mechanism 220 clamps and fixes the single cell 10, and the second elastic member 215 is in a compressed state. After the single cell 10 is taken out, the first clamping plate 212 rebounds upward and resets under the elastic force of the second elastic member 215, which is convenient for clamping and fixing the next single cell 10. The operation is simple and convenient, and can improve production efficiency.

[0039] like Figure 3 and Figure 4 As shown, optionally, the first driving mechanism 110 includes a first driving member (not shown in the figure), a driving plate 111 and two connecting rods 112, the driving plate 111 is connected to the output end of the first driving member and can move along the second direction, one end of the two connecting rods 112 is connected one-to-one to the side walls at both ends of the driving plate 111 along the first direction, and the other end is connected one-to-one to the clamping assembly 200. The first driving member in this embodiment is a top wheel cylinder, and the output end of the top wheel cylinder moves along the second direction to push the driving plate 111 to move along the second direction, and then the driving plate 111 drives the connecting rod 112 to move and rotate synchronously, and the angle between the connecting rod 112 and the driving plate 111 changes, so that the distance between the end of the connecting rod 11 away from the driving plate 111 and the driving plate 111 changes, so that the clamping assembly 200 connected to the end of the connecting rod 11 away from the driving plate 111 is moved away from or close to the driving plate 111, that is, the two clamping assemblies 200 are moved away from and close to each other, and the single battery 10 is released and clamped. It is simple and convenient to operate, and has a simple structure, which can reduce the manufacturing cost of the first driving mechanism 110.

[0040] Furthermore, one of the bottom wall of the driving plate 111 and the top wall of the clamp seat 100 is provided with a first guide rail 115 extending in the second direction, and the other is provided with a first slider 116 slidably connected to the first guide rail 115. The cooperation between the first guide rail 115 and the first slider 116 can realize the smooth movement of the driving plate 111, and play a guiding and limiting role in the movement direction of the driving plate 111, thereby improving the reliability of the battery clamp.

[0041] Please continue to refer to Figure 4The first driving mechanism 110 further includes a first elastic member 113, one end of which is fixedly connected to the clamp seat 100, and the other end of which is fixedly connected to the driving plate 111. After the first driving member drives the two clamping assemblies 200 away from each other, the first elastic member 113 is in a stretched state, and the single battery 10 is placed in the battery clamp. The first elastic member 113 pulls the two clamping assemblies 200 closer to each other, so that the clamp assembly can clamp and fix the single battery 10. The structure is simple, the operation is convenient, and the clamping and fixing efficiency can be improved.

[0042] In this embodiment, in the clamping assembly 200 of the same group, the first clamping mechanism 210 is fixedly connected to the second clamping mechanism 220 via a sliding fixing plate 221. In this way, the first clamping mechanism 210 and the second clamping mechanism 220 can move synchronously, and the battery clamp can clamp and fix single batteries 10 of different sizes in different directions by changing the length of the sliding fixing plate 221 or the relative position of the second clamping mechanism 220 and the first clamping mechanism 210 on the sliding fixing plate 221, so that the battery clamp has a wider range of applications.

[0043] In this embodiment, return to reference Figure 2 and Figure 4 , either the bottom wall of the sliding fixing plate 221 or the top wall of the clamp seat 100 is provided with a second guide rail 222 extending along the first direction, and the other is provided with a second slider 223 slidably connected to the second guide rail 222. The cooperation between the second guide rail 222 and the second slider 223 can realize the stable and reliable sliding of the clamping assembly 200 along the first direction, and play a guiding role for the clamping assembly 200.

[0044] Optionally, the battery fixture further comprises a carrier plate 230, the bottom of which is fixed to the top wall of the fixture seat 100 (eg, Figure 1 As shown in FIG. 1 , the driving plate 111 is provided with an avoidance hole 114 for the fixing column 231 to pass through, and the avoidance hole 114 is extended along the second direction. In this embodiment, the carrying plate 230 is arranged above the driving plate 111, and the fixing column 231 fixes the carrying plate 230 and the clamp seat 100, and the avoidance hole 114 is extended along the second direction, so that the fixing column 231 will not affect the movement of the driving plate 111 along the second direction, thereby improving the structural rationality of the battery clamp.

[0045] The present embodiment also provides a battery clamping method, which uses a battery clamp as described in any of the above schemes, and includes the following steps: S1, the battery clamp is transported to the loading position, and the first driving mechanism 110 drives the two clamping assemblies 200 to move away from each other; S2, the single battery 10 is placed in the battery clamp along the second direction, the first clamping mechanism 210 clamps and fixes the single battery 10, and the battery pole 11 is accommodated in the accommodating portion 211; S3, the battery clamp with the single battery 10 clamped is transported to the flipping position, and the first driving mechanism 110 drives the two clamping assemblies 200 to move away from each other; S4, the flipping mechanism flips the single battery 10 to be placed along the first direction, and the first clamping mechanism 210 moves downward so that the second clamping mechanism 220 clamps and fixes the single battery 10.

[0046] After the battery clamping method in this embodiment uses the above-mentioned battery clamp, when the second clamping mechanism 220 clamps and fixes the single battery 10, the first clamping mechanism 210 can be lowered, which will not affect the load on the single battery 10, thereby realizing the clamping and fixing function of the clamping assembly 200 for the single battery 10 placed in different directions. The operation is simple and convenient, and the clamping efficiency can be improved and the production cost can be fixed; and the first clamping mechanism 210 is provided with a accommodating portion 211 for accommodating the battery pole 11, which can enable the first clamping mechanism 210 to protect the battery pole 11 when clamping and fixing the single battery 10, avoid damage to the battery pole 11 during the production process, and improve the production quality and yield rate.

[0047] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A battery clamp, characterized in that: include: A clamp seat (100), wherein the clamp seat (100) is provided with a first driving mechanism (110); Two groups of clamping assemblies (200) are arranged opposite to each other, the clamping assemblies (200) are arranged on the clamp seat (100), and the two groups of clamping assemblies (200) are connected to the output end of the first driving mechanism (110), so that the two groups of clamping assemblies (200) can clamp and fix the single battery (10); the clamping assembly (200) comprises a first clamping mechanism (210) and a second clamping mechanism (220), the first clamping mechanism (210) is arranged on the single battery (10) and the second clamping mechanism (2 ... 20), the first clamping mechanism (210) is capable of moving in a vertical direction, and the first clamping mechanism (210) is provided with a receiving portion (211) for receiving a battery pole (11) of the single battery (10); wherein two of the second clamping mechanisms (220) are used to clamp and fix the single battery (10) placed along the first direction, and two of the first clamping mechanisms (210) are used to clamp and fix the single battery (10) placed along the second direction, and the first direction is perpendicular to the second direction.

2. The battery clamp according to claim 1, characterized in that: The first driving mechanism (110) comprises a first driving member, a driving plate (111) and two connecting rods (112); the driving plate (111) is connected to the output end of the first driving member and is capable of moving along the second direction; one end of the two connecting rods (112) is connected one-to-one to the two end side walls of the driving plate (111) along the first direction, and the other end is connected one-to-one to the two clamping assemblies (200).

3. The battery clamp according to claim 2, characterized in that: Either one of the bottom wall of the driving plate (111) or the top wall of the clamp seat (100) is provided with a first guide rail (115) extending along the second direction, and the other is provided with a first sliding block (116) slidably connected to the first guide rail (115).

4. The battery clamp according to claim 2, characterized in that: The first driving mechanism (110) further comprises a first elastic member (113), one end of the first elastic member (113) being fixedly connected to the clamp seat (100), and the other end of the first elastic member (113) being fixedly connected to the driving plate (111).

5. The battery clamp according to claim 2, characterized in that: In the clamping assembly (200) of the same group, the first clamping mechanism (210) is fixedly connected to the second clamping mechanism (220) via a sliding fixing plate (221).

6. The battery clamp according to claim 5, characterized in that: Either one of the bottom wall of the sliding fixing plate (221) or the top wall of the clamp seat (100) is provided with a second guide rail (222) extending along a first direction, and the other is provided with a second sliding block (223) slidably connected to the second guide rail (222).

7. The battery clamp according to any one of claims 2 to 6, characterized in that: The battery clamp further comprises a supporting plate (230), the bottom of the supporting plate (230) being fixed to the top wall of the clamp seat (100) via a fixing column (231), the driving plate (111) being provided with an avoidance hole (114) for the fixing column (231) to pass through, and the avoidance hole (114) being extended along the second direction.

8. The battery clamp according to claim 1, characterized in that: The first clamping mechanism (210) comprises a first clamping plate (212), the first clamping plate (212) is provided with the accommodating portion (211), either the first clamping plate (212) or the clamp seat (100) is provided with a third guide rail (213) extending in a vertical direction, and the other is provided with a third slider (214) slidably connected to the third guide rail (213).

9. The battery clamp according to claim 8, characterized in that: The first clamping mechanism (210) further comprises a second elastic member (215), one end of the second elastic member (215) being connected to the first clamping plate (212) and the other end being connected to the clamp seat (100).

10. A battery clamping method, characterized in that: Using the battery clamp as described in any one of claims 1 to 9, comprising the steps of: S1, the battery clamp is transported to the loading position, and the first driving mechanism (110) drives the two groups of clamping assemblies (200) to move away from each other; S2, placing the single battery (10) in the battery clamp along the second direction, the first clamping mechanism (210) clamping and fixing the single battery (10), and accommodating the battery pole (11) in the accommodating portion (211); S3, transporting the battery clamp holding the single battery (10) to a flipping position, and the first driving mechanism (110) driving the two clamping assemblies (200) to move away from each other; S4. The flipping mechanism flips the single battery (10) to be placed along the first direction, and the first clamping mechanism (210) moves downward so that the second clamping mechanism (220) clamps and fixes the single battery (10).

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