Lithium battery clamping jaw

Abstract

The utility model provides a lithium battery clamping jaw which comprises a fixing frame used for being connected with a module, a rotating frame capable of rotating relative to the fixing frame and a driving assembly driving the rotating frame to rotate, a plurality of clamping jaw sets are arranged below the rotating frame, and each clamping jaw set comprises a pair of finger air cylinders used for clamping a lithium battery. The pair of finger air cylinders of each clamping jaw set is fixed to two symmetrically-arranged mounting plates respectively, the clamping faces of the pair of finger air cylinders of each clamping jaw set coincide with each other, and the two mounting plates are located on the inner side of the rotating frame respectively. The driving assembly is arranged to enable the rotating frame to rotate relative to the fixing frame, and the clamping jaw sets used for clamping the lithium batteries are arranged below the rotating frame, so that the clamping direction of each pair of finger air cylinders of all the clamping jaw sets can be accurately controlled, the clamping jaw sets can easily adapt to the placing direction of a lithium battery clamp, and the clamping efficiency of the lithium battery clamp is improved. When the lithium battery is clamped, the lithium battery is not influenced by the inclined placement of the lithium battery clamp, so that the turnover efficiency in the production process of the lithium battery is improved.

Description

Technical Field

[0001] The present utility model generally relates to the technical field of lithium batteries. More specifically, the present utility model relates to a lithium battery jaw. Background Art

[0002] During the production process of lithium batteries, baking is required for the following main reasons: First, to remove moisture: Before assembly, the electrode materials, separator, and electrolyte of lithium-ion batteries must maintain extremely low water content. The baking process can effectively remove the residual moisture in these components because the presence of moisture will react with the electrolyte, generating gas, causing the battery to bulge, and even triggering safety issues such as short circuits or thermal runaway. Second, to enhance activity: Baking by controlling the temperature can also activate the electrode materials, improve their conductivity, and increase the charge-discharge efficiency and cycle stability of the battery. Third, to solidify the electrolyte: In some manufacturing processes, baking can also help the electrolyte better infiltrate the electrodes and, to a certain extent, promote the chemical reaction between the electrolyte and the electrode materials, forming a more stable solid electrolyte interface film. This film is crucial for protecting the electrodes and extending the battery life. Fourth, to achieve structural stability: The baking process helps to stabilize the internal structure of the battery. Through high-temperature treatment, the components can be bonded more firmly, enhancing the overall mechanical strength and safety of the battery. Therefore, the baking process is an indispensable part of lithium battery manufacturing, directly affecting the safety, performance, and life of the battery.

[0003] In the baking process of lithium batteries, it is often necessary to frequently transfer the lithium batteries. During the transfer process, jaws for clamping the lithium batteries are inevitably used. Due to the complex situation at the production site, the direction of the jaws often cannot adapt to the placement direction of the lithium batteries. The jaws are usually assembled on a three-axis module, making it difficult to adjust the clamping direction. Sometimes, the placement of the fixture is skewed, and thus, the relative direction between the two needs to be adjusted before clamping, which greatly affects the efficiency of the transfer process.

[0004] In view of this, there is an urgent need to provide a lithium battery jaw to solve the problem. Summary of the Utility Model

[0005] In order to solve at least one or more of the technical problems in the above background art, the present utility model proposes a lithium battery jaw,

[0006] For this purpose, the present utility model provides the following technical solutions.

[0007] The utility model discloses a lithium battery jaw, which comprises a fixing frame for connecting a module, a rotating frame rotatably arranged relative to the fixing frame, and a driving component for driving the rotating frame to rotate. A plurality of jaw groups are arranged below the rotating frame. Each jaw group comprises a pair of finger cylinders for clamping a lithium battery. The pair of finger cylinders of each jaw group are respectively fixed on two symmetrically arranged mounting plates. The clamping surfaces of the pair of finger cylinders of each jaw group coincide with each other. The two mounting plates are respectively arranged inside the rotating frame.

[0008] Preferably, each mounting plate is fixedly connected with a slider. The slider can move up and down along a sliding groove arranged on the rotating frame. A return spring for making the mounting plate have a downward movement tendency relative to the rotating frame is further included. A first pair of photoelectric sensors and a baffle are included. The first pair of photoelectric sensors are arranged on the rotating frame, and the baffle is arranged on the mounting plate. When the mounting plate moves downward relative to the rotating frame to the lowest position, the baffle is located between the transmitter and the receiver of the first pair of photoelectric sensors. When the mounting plate moves upward relative to the rotating frame, the baffle moves upward and no longer blocks the transmitter and the receiver of the first pair of photoelectric sensors.

[0009] Preferably, each finger cylinder is provided with a second pair of photoelectric sensors for sensing whether it clamps a lithium battery.

[0010] Preferably, the transmitter of the second pair of photoelectric sensors is arranged on one finger of a finger cylinder, and the receiver is arranged on the other finger of the finger cylinder. When the finger cylinder clamps a lithium battery, the space between the transmitter and the receiver of the second pair of photoelectric sensors is blocked by the lithium battery.

[0011] Preferably, an avoidance groove is arranged on the back of the finger of any one of the finger cylinders.

[0012] Preferably, the transmitter and the receiver of the second pair of photoelectric sensors are respectively arranged at the avoidance grooves on the backs of the two fingers of a finger cylinder.

[0013] Preferably, a pair of protection pieces parallel to the fingers are arranged at each finger cylinder. The outer boundary of any pair of protection pieces does not exceed the outer boundary of an adjacent finger cylinder, and the inner distance of any pair of protection pieces is not less than the clamping distance between the two fingers of an adjacent finger cylinder.

[0014] Preferably, the driving component comprises a motor, a driving gear fixedly connected to the output shaft of the motor, and a driven gear for meshing with the driving gear. Among them, the motor is assembled on the fixing frame, the driven gear is assembled on the rotating frame, a bearing is assembled inside the driven gear, and the inner ring of the bearing is connected to the fixing frame.

[0015] The technical solution provided by this application may include the following beneficial effects: By setting a driving component in the present utility model, the rotating frame rotates relative to the fixed frame, and a plurality of jaw groups for clamping lithium batteries are arranged below the rotating frame, so that the clamping directions of each pair of finger cylinders of all the jaw groups can be precisely controlled, making it easier to adapt to the placement direction of the lithium battery fixture. That is, the present utility model can adjust the clamping direction according to the placement direction of the lithium battery, and is not affected by the skew placement of the lithium battery fixture when clamping the lithium battery, improving the turnover efficiency in the lithium battery production process. Description of the Drawings

[0016] By reading the following detailed description with reference to the drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present utility model will become readily understood. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals indicate the same or corresponding parts, wherein:

[0017] Figure 1 It is a top perspective view showing the present utility model;

[0018] Description of the reference numerals: 11, fixed frame; 12, rotating frame; 13, finger cylinder; 14, mounting plate; 21, slider; 22, chute; 23, return spring; 24, first pair of photoelectric sensors; 25, baffle; 31, second pair of photoelectric sensors; 71, protective sheet; 81, motor; 100, lithium battery. Detailed Embodiments

[0019] Embodiments will now be described with reference to the drawings. It should be understood that, for simplicity and clarity of illustration, where considered appropriate, reference numerals may be repeated in the drawings to indicate corresponding or similar elements. Additionally, the present utility model sets forth numerous specific details in order to provide a thorough understanding of the embodiments described herein. However, those of ordinary skill in the art will understand that the embodiments described herein may be practiced without these specific details. In other instances, well-known methods, procedures, and components have not been described in detail so as not to obscure the embodiments described herein. Moreover, this description should not be regarded as limiting the scope of the embodiments described herein.

[0020] According to an embodiment of the present utility model, a lithium battery jaw is provided, including: a fixed frame 11 for connecting the module, a rotating frame 12 rotatably arranged relative to the fixed frame 11, a driving component for driving the rotation of the rotating frame 12, a plurality of jaw groups are arranged below the rotating frame 12, each jaw group includes a pair of finger cylinders 13 for clamping the lithium battery 100, a pair of finger cylinders 13 of each jaw group are respectively fixed on two symmetrically arranged mounting plates 14, the clamping surfaces of a pair of finger cylinders 13 of each jaw group coincide with each other, and the two mounting plates 14 are respectively arranged inside the rotating frame 12.

[0021] The fixing bracket 11 here can be an L-shaped bracket. The bottom of the L-shaped bracket is used to connect the rotating bracket 12, and the side of the L-shaped bracket can be used to connect the three-axis module. The rotating bracket 12 can be a U-shaped bracket. Two mounting plates 14 are arranged inside the U-shaped bracket and are arranged opposite to each other. One finger cylinder 13 on each mounting plate 14 is arranged opposite to the other finger cylinder 13 on the other mounting plate 14, so that the clamping surfaces of a pair of finger cylinders 13 of a clamping jaw group coincide with each other.

[0022] In one embodiment, each mounting plate 14 is fixedly connected with a slider 21. The slider 21 can move up and down along a chute 22 arranged on the rotating bracket 12. It further includes a return spring 23 for making the mounting plate 14 have a downward movement tendency relative to the rotating bracket 12, and a first pair of photoelectric sensors 24 and a baffle 25. The first pair of photoelectric sensors 24 are arranged on the rotating bracket 12, and the baffle 25 is arranged on the mounting plate 14. When the mounting plate 14 moves downward to the lowest position relative to the rotating bracket 12, the baffle 25 is located between the transmitter and the receiver of the first pair of photoelectric sensors 24. When the mounting plate 14 moves upward relative to the rotating bracket 12, the baffle 25 moves upward and no longer blocks the transmitter and the receiver of the first pair of photoelectric sensors 24.

[0023] The purpose of the above embodiment is to achieve unexpected shutdown in case of abnormal situations such as collision. Obviously, it is easy to understand that the function of the return spring 23 is to make the mounting plate 14 return to the lowest position relative to the rotating bracket 12 after moving upward relative to the rotating bracket 12 due to collision, so as to restore the state before the clamping jaw operation, that is, the baffle 25 is located between the transmitter and the receiver of the first pair of photoelectric sensors 24 again.

[0024] To detect whether the finger cylinder 13 clamps the lithium battery 100, a second pair of photoelectric sensors 31 for sensing whether it clamps the lithium battery 100 can also be arranged at each finger cylinder 13.

[0025] The first pair of photoelectric sensors 24 and the second pair of photoelectric sensors 31 mentioned in the foregoing can both be opposed photoelectric sensors.

[0026] In the above embodiment, the transmitter of the second pair of photoelectric sensors 31 is arranged on one finger of a finger cylinder 13, and the receiver is arranged on the other finger of the finger cylinder 13. When the finger cylinder 13 clamps the lithium battery 100, the lithium battery 100 blocks between the transmitter and the receiver of the second pair of photoelectric sensors 31.

[0027] In the above embodiments, an avoidance groove is provided on the back of each finger of any one of the finger cylinders 13. The provision of the avoidance groove can reduce the weight of the finger cylinder 13 and thus reduce the weight of the jaw group.

[0028] In the above embodiments, the transmitter and the receiver of the second pair of light sensors 31 are respectively arranged at the avoidance grooves on the backs of the two fingers of a finger cylinder 13. Here, by reducing the thickness of the fingers of the finger cylinder 13 and installing the second pair of light sensors 31 at the avoidance grooves, when the finger cylinder 13 extends into the fixture to clamp the lithium battery 100, the second pair of light sensors 31 can avoid the surrounding lithium batteries 100 and prevent physical interference between the second pair of light sensors 31 and the lithium batteries 100.

[0029] In one embodiment, a pair of protection sheets 71 parallel to the fingers are provided at each finger cylinder 13. The outer boundaries of any pair of protection sheets 71 do not exceed the outer boundary of an adjacent finger cylinder 13, and the inner distance of any pair of protection sheets 71 is not less than the clamping distance between the two fingers of an adjacent finger cylinder 13.

[0030] The protection sheets 71 mentioned above can be made of insulating hard plates. When the finger cylinder 13 clamps the lithium battery 100 and the lithium battery 100 shakes during the turnover process, the protection sheets 71 are used to limit the amplitude of the shaking of the lithium battery 100 to prevent adjacent lithium batteries 100 from colliding.

[0031] In some embodiments, the drive assembly may include a motor 81, a driving gear fixedly connected to the output shaft of the motor 81, and a driven gear for meshing with the driving gear. Among them, the motor 81 is assembled on the fixing frame 11, the driven gear is assembled on the rotating frame 12, a bearing is assembled on the inner ring of the driven gear, and the inner ring of the bearing is connected to the fixing frame 11.

[0032] It should be understood that the possible terms "first" or "second" etc. in the claims, the description and the drawings disclosed by the present invention are used to distinguish different objects, rather than to describe a specific order. The terms "comprising" and "including" used in the description and claims of the present invention disclose indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations.

[0033] It should also be understood that the terms used in the description of the present disclosure of the utility model herein are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure of the utility model. As used in the description of the present disclosure of the utility model and the claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms. It should also be further understood that the term " / and" used in the description of the present disclosure of the utility model and the claims refers to any combination and all possible combinations of one or more of the associated listed items and includes these combinations.

[0034] Although the embodiments of the present utility model are as described above, the above content is only an example adopted for the convenience of understanding the present utility model and is not intended to limit the scope and application scenarios of the present utility model. Any person skilled in the art within the technical field of the present utility model may make any modifications and changes in the form of implementation and details without departing from the spirit and scope disclosed by the present utility model. However, the scope of patent protection of the present utility model shall still be subject to the scope defined by the appended claims.

Claims

1. A lithium battery gripper, characterized in that, Comprising: A fixing bracket (11) for connecting the module, a rotating bracket (12) rotatably arranged relative to the fixing bracket (11), and a driving assembly for driving the rotation of the rotating bracket (12). A plurality of jaw groups are arranged below the rotating bracket (12). Each jaw group includes a pair of finger cylinders (13) for clamping the lithium battery (100). The pair of finger cylinders (13) of each jaw group are respectively fixed on two symmetrically arranged mounting plates (14). The clamping surfaces of the pair of finger cylinders (13) of each jaw group coincide with each other. The two mounting plates (14) are respectively arranged inside the rotating bracket (12).

2. The lithium battery jaw according to claim 1, wherein, Each mounting plate (14) is fixedly connected with a slider (21). The slider (21) can move up and down along a chute (22) arranged on the rotating bracket (12). It further includes a return spring (23) for making the mounting plate (14) have a downward movement tendency relative to the rotating bracket (12), and a first pair of photoelectric sensors (24) and a baffle (25). The first pair of photoelectric sensors (24) are arranged on the rotating bracket (12), and the baffle (25) is arranged on the mounting plate (14). When the mounting plate (14) moves downward relative to the rotating bracket (12) to the lowest position, the baffle (25) is located between the transmitter and the receiver of the first pair of photoelectric sensors (24). When the mounting plate (14) moves upward relative to the rotating bracket (12), the baffle (25) moves upward and no longer blocks the transmitter and the receiver of the first pair of photoelectric sensors (24).

3. The lithium battery jaw according to claim 1, characterized in that, Each finger cylinder (13) is provided with a second pair of photoelectric sensors (31) for sensing whether it clamps the lithium battery (100).

4. The lithium battery jaw according to claim 3, characterized in that, The transmitter of the second pair of photoelectric sensors (31) is arranged on one finger of a finger cylinder (13), and the receiver is arranged on the other finger of this finger cylinder (13). When the finger cylinder (13) clamps the lithium battery (100), the lithium battery (100) blocks between the transmitter and the receiver of the second pair of photoelectric sensors (31).

5. The lithium battery jaw according to claim 4, characterized in that, An avoidance groove is arranged on the back of the finger of any one of the finger cylinders (13).

6. The lithium battery jaw according to claim 5, wherein, The transmitter and the receiver of the second pair of photoelectric sensors (31) are respectively arranged at the avoidance grooves on the backs of the two fingers of a finger cylinder (13).

7. A lithium battery jaw according to claim 1, characterized in that, A pair of protection sheets (71) parallel to the fingers are arranged at each finger cylinder (13). The outer boundary of any pair of protection sheets (71) does not exceed the outer boundary of an adjacent finger cylinder (13), and the inner distance of any pair of protection sheets (71) is not less than the clamping distance between the two fingers of an adjacent finger cylinder (13).

8. A lithium battery jaw according to claim 1, characterized in that, The driving assembly includes a motor (81), a driving gear fixedly connected to the output shaft of the motor (81), and a driven gear for meshing with the driving gear. Among them, the motor (81) is assembled on the fixing bracket (11), the driven gear is assembled on the rotating bracket (12), the inner ring of the driven gear is assembled with a bearing, and the inner ring of the bearing is connected to the fixing bracket (11).

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