Clamping device

Abstract

The utility model provides a clamping device and relates to the technical field of winding equipment. A clamping jaw mechanism is mounted on a rotating mechanism; wherein the clamping jaw mechanism comprises an upper clamping jaw, a lower clamping jaw, a driving piece and a transmission assembly, the driving piece controls opening and closing between the upper clamping jaw and the lower clamping jaw through gear transmission in the transmission assembly, and due to the fact that the transmission ratio of gear meshing transmission is stable, and meanwhile the transmission precision is higher, compared with pneumatic transmission, the clamping jaw mechanism has the advantages of being simple in structure and convenient to use. The opening and closing between the upper clamping jaw and the lower clamping jaw are controlled to be smoother, so that the technical problems that in the prior art, due to the fact that a clamping device controlled by an air cylinder is adopted, the control smoothness of the clamping force is poor, and the clamping force is too large, so that the hidden danger of battery cell damage is caused are solved, accurate regulation and control of the clamping force of the upper clamping jaw and the lower clamping jaw are achieved, and the working efficiency is improved. And the damage rate of the battery cell is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of core winding equipment, in particular to a clamping device. Background Art

[0002] Core winding is a manufacturing process of winding an anode, a separator and a cathode layer in a certain way to form a core. The purpose is to ensure that each lithium ion has a corresponding carbon ion to combine with. Therefore, the quality of the core winding process directly affects the quality and service life of lithium batteries. Compared with flat batteries, wound batteries are made by high-voltage winding of plates only about 1 mm thick, and have the advantages of wide high and low temperature performance, super high-rate discharge ability and strong structure, and excellent seismic resistance.

[0003] In the prior art, the process of battery winding usually adopts assembly line operation to improve production efficiency, that is, the wound core is taken off and transferred to the next process for processing. In traditional transfer mechanisms, two cylinders are mostly used to drive the jaws to move, and the opening and closing of the jaws are also controlled by the cylinders to apply force and relieve force. However, the smoothness of the pneumatic control of the clamping force of the jaws is poor, and there is a hidden danger of damaging the core due to excessive clamping force, reducing the manufacturing qualification rate of products. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a clamping device to alleviate the technical problem that in the prior art, due to the clamping device controlled by a cylinder, the smoothness of the control of the clamping force is poor, and there is a hidden danger of damaging the core due to excessive clamping force.

[0005] In a first aspect, the utility model provides a clamping device, including a rotating mechanism and a jaw mechanism, and the jaw mechanism is installed on the rotating mechanism; and the jaw mechanism transfers the workpiece from the material taking position to the material feeding position along with the rotation of the rotating mechanism.

[0006] The jaw mechanism includes an upper jaw, a lower jaw, a driving member and a transmission component, and the driving member controls the opening and closing between the upper jaw and the lower jaw through gear transmission in the transmission component.

[0007] Combined with the first aspect, the utility model provides a first possible implementation manner of the first aspect, wherein the transmission component includes a gear, a first rack and a second rack, and the gear is meshed and connected between the first rack and the second rack;

[0008] One end of the upper jaw is connected to the first rack, and when the gear rotates, the gear drives the upper jaw to move through the first rack;

[0009] One end of the lower clamping jaw is connected to the second rack, and when the gear rotates, the gear drives the lower clamping jaw to move in the opposite direction of the moving direction of the upper clamping jaw through the second rack.

[0010] In combination with the first possible implementation of the first aspect, the utility model provides a second possible implementation of the first aspect, wherein the first rack and the second rack are arranged opposite to each other, and both the first rack and the second rack are provided with mounting holes.

[0011] In combination with the second possible implementation of the first aspect, the utility model provides a third possible implementation of the first aspect, wherein the driving member is a motor, the gear is provided with a connecting hole, and the output end of the motor is connected to the connecting hole.

[0012] In combination with the third possible implementation of the first aspect, the utility model provides a fourth possible implementation of the first aspect, wherein:

[0013] The rotating mechanism comprises a rotating part and a rotating base plate, and the clamping mechanism is mounted on the rotating base plate;

[0014] The rotating part is used to drive the rotating base plate to rotate.

[0015] In combination with the fifth possible implementation of the first aspect, the utility model provides a fifth possible implementation of the first aspect, wherein it further includes a moving mechanism, wherein the moving mechanism includes a translational drive member, a drive plate and a slide rail, wherein the drive plate is slidably mounted on the rotating base plate via the slide rail, the drive end of the translational drive member is connected to the drive plate, and the drive plate is connected to the clamping mechanism. In combination with the fifth possible implementation of the first aspect, the utility model provides a sixth possible implementation of the first aspect, wherein the moving mechanism and the clamping mechanism are arranged on both sides of the rotating base plate, the clamping mechanism includes a first mounting seat, the rotating base plate is provided with a first avoidance opening, the first mounting seat and the drive plate are arranged on both sides of the first avoidance opening, and are connected by a connecting plate.

[0016] In combination with the sixth possible implementation of the first aspect, the utility model provides a seventh possible implementation of the first aspect, wherein the rotation mechanism also includes a first connecting rod, one end of which is rotatably connected to the end of the rotating base plate away from the rotating part, and the other end of the first connecting rod is fixedly arranged.

[0017] Combined with the sixth possible implementation manner of the first aspect, the present utility model provides an eighth possible implementation manner of the first aspect, wherein a sensor is provided at the material taking position, the sensor is electrically connected to the driving member, and the sensor is used to determine whether the workpiece is qualified.

[0018] Combined with the sixth possible implementation manner of the first aspect, the present utility model provides a ninth possible implementation manner of the first aspect, wherein a waste box is further included, the waste box is arranged at the bottom of the rotating bottom plate, and when the sensor determines that the workpiece is unqualified, the clamping jaw mechanism transfers the material to be taken from the material taking position to the waste box.

[0019] The embodiments of the present utility model bring the following beneficial effects: The clamping jaw mechanism is installed on the rotating mechanism; and the clamping jaw mechanism rotates with the rotating mechanism to transfer the workpiece from the material taking position to the material feeding position. Among them, the clamping jaw mechanism includes an upper clamping jaw, a lower clamping jaw, a driving member and a transmission component. The driving member controls the opening and closing between the upper clamping jaw and the lower clamping jaw through the gear transmission in the transmission component. Since the transmission ratio of gear meshing transmission is stable and the transmission accuracy is higher, compared with pneumatic transmission, the control of the opening and closing between the upper clamping jaw and the lower clamping jaw is smoother, alleviating the technical problem in the prior art that due to the clamping device controlled by a cylinder, the smoothness of the clamping force control is poor, and there is a hidden danger of damaging the battery cell due to excessive clamping force, realizing the precise regulation of the clamping force between the upper clamping jaw and the lower clamping jaw and reducing the battery cell damage rate. Description of the Drawings

[0020] In order to more clearly illustrate the specific implementation manners of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific implementation manners or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the overall structure of the clamping device provided by the embodiment of the present utility model;

[0022] Figure 2 It is an exploded structure diagram of the clamping device provided by the embodiment of the present utility model;

[0023] Figure 3 It is a connection diagram of the rotating bottom plate and the clamping jaw structure in the clamping device provided by the embodiment of the present utility model;

[0024] Figure 4 It is an internal structure diagram of the transmission component in the clamping device provided by the embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the overall structure of the jaw mechanism in the clamping device provided by the embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the moving mechanism in the clamping device provided by the embodiment of the present utility model.

[0027] Icons: 100 - Rotating mechanism; 110 - Rotating part; 120 - Rotating bottom plate; 121 - First avoidance opening; 122 - Connecting plate; 130 - First connecting rod; 140 - Second connecting rod; 200 - Jaw mechanism; 210 - Upper jaw; 220 - Lower jaw; 230 - Transmission component; 231 - Gear; 232 - First rack; 233 - Second rack; 240 - Driving part; 250 - First mounting seat; 300 - Moving mechanism; 310 - Translation driving part; 320 - Driving plate; 330 - Slide rail; 400 - Scrap box. Specific embodiments

[0028] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] Such as Figure 1 - Figure 6As shown in the figure, a clamping device provided by the present utility model includes a rotating mechanism 100 and a jaw mechanism 200. The jaw mechanism 200 is installed on the rotating mechanism 100; and the jaw mechanism 200 transfers the workpiece from the material taking position to the material feeding position as the rotating mechanism 100 rotates. The material taking position refers to the initial position where the battery cell waits for the clamping device to transfer the battery cell, and the material feeding position refers to the end position where the battery cell is transferred by the clamping device.

[0032] The jaw mechanism 200 includes an upper jaw 210, a lower jaw 220, a driving member 240, and a transmission assembly 230. The driving member 240 drives and controls the opening and closing between the upper jaw 210 and the lower jaw 220 through the gear 231 in the transmission assembly 230.

[0033] By installing the jaw mechanism 200 on the rotating mechanism 100; and the jaw mechanism 200 transfers the workpiece from the material taking position to the material feeding position as the rotating mechanism 100 rotates. Among them, the jaw mechanism 200 includes an upper jaw 210, a lower jaw 220, a driving member 240, and a transmission assembly 230. The driving member 240 drives and controls the opening and closing between the upper jaw 210 and the lower jaw 220 through the gear 231 in the transmission assembly 230. Since the transmission ratio of the meshing transmission of the gear 231 is stable and the transmission precision is higher, therefore, compared with pneumatic transmission, the opening and closing between the upper jaw 210 and the lower jaw 220 is smoother. It alleviates the technical problem in the prior art that in the clamping device controlled by a cylinder, the smoothness of the clamping force control is poor, and there is a hidden danger of damaging the battery cell due to excessive clamping force, realizes the precise regulation of the clamping force between the upper jaw 210 and the lower jaw 220, and reduces the battery cell damage rate.

[0034] Further, the transmission assembly 230 includes a gear 231, a first rack 232, and a second rack 233. The gear 231 is meshed and connected between the first rack 232 and the second rack 233;

[0035] One end of the upper jaw 210 is connected to the first rack 232, and when the gear 231 rotates, the gear 231 drives the upper jaw 210 to move through the first rack 232;

[0036] One end of the lower jaw 220 is connected to the second rack 233, and when the gear 231 rotates, the gear 231 drives the lower jaw 220 to move in the direction opposite to the moving direction of the upper jaw 210 through the second rack 233.

[0037] Since the transmission ratio of the meshing transmission of the gear 231 is stable and the transmission precision is higher, therefore, compared with pneumatic transmission, the opening and closing between the upper jaw 210 and the lower jaw 220 is smoother. Therefore, the probability of the battery cell being clamped and damaged is greatly reduced, and the yield rate of product production is improved.

[0038] Furthermore, the first rack 232 and the second rack 233 are oppositely arranged, and both the first rack 232 and the second rack 233 are provided with mounting holes.

[0039] The first rack 232 and the second rack 233 are oppositely arranged, which facilitates the meshing transmission of the gear 231 between the first rack 232 and the second rack 233. At the same time, both the first rack 232 and the second rack 233 are provided with mounting holes, and the first rack 232 and the second rack 233 can be detachably connected to the upper jaw 210 and the lower jaw 220 respectively through threaded connections, reducing the installation difficulty.

[0040] Furthermore, the driving member 240 is a motor, and the gear 231 is provided with a connection hole, and the output end of the motor is connected to the connection hole.

[0041] In this embodiment, the driving member 240 adopts a servo motor, and the speed control is more stable. By connecting the output end of the motor to the connection hole, the control of the rotation direction of the gear 231 is realized.

[0042] Furthermore, the rotating mechanism 100 includes a rotating part 110 and a rotating bottom plate 120, and the jaw mechanism 200 is installed on the rotating bottom plate 120;

[0043] The rotating part 110 is used to drive the rotating bottom plate 120 to rotate.

[0044] Furthermore, the rotating mechanism 100 further includes a first connecting rod 130. One end of the first connecting rod 130 is rotatably connected to the end of the rotating bottom plate 120 facing away from the rotating part 110, and the other end of the first connecting rod 130 is fixedly arranged.

[0045] More preferably, the driving member 240 is installed on a large equipment board (not shown in the figure), and the driving end penetrates through the large equipment board and is rotatably connected to the rotating bottom plate 120. The driving member 240 and the rotating bottom plate 120 are arranged on both sides of the large equipment board; one end of the first connecting rod 130 is rotatably connected to the end of the rotating bottom plate 120 facing away from the rotating part 110, and the other end is connected to a second connecting rod 140. The first connecting rod 130 is parallel to the large equipment board, the second connecting rod 140 is perpendicular to the large equipment board, one end of the second connecting rod 140 is connected to the first connecting rod 130, and the other end is connected to the large equipment board.

[0046] Further, it further includes a moving mechanism. The moving mechanism 300 includes a translation driving member 310, a driving plate 320, and a slide rail 330. The driving plate 320 is slidably mounted on the rotating bottom plate 120 through the slide rail 330. The driving end of the translation driving member 310 is connected to the driving plate 320, and the driving plate 320 is connected to the jaw mechanism 200. At this time, there is a certain distance between the material taking position and the initial position of the jaw mechanism 200. The material taking waiting position refers to the initial position of the jaw mechanism 200. The jaw mechanism 200 can only clamp the battery cell when it is driven by the moving mechanism 300 from the material taking waiting position to the material taking position.

[0047] The translation driving member 310 is preferably a motor screw combination. The screw drive has the advantages of converting rotary motion into linear motion, converting torque into thrust, and can achieve large thrust; it is stable during positioning and has low energy consumption. The driving plate 320 and the rotating bottom plate 120 can be slidably connected through the slide rail 330 to realize the telescopic movement of the jaw mechanism 200 relative to the material taking position or the material taking waiting position, realize the stable control of the position of the jaw mechanism 200, and has a simple structure, is easy to install, and reduces the labor intensity of the installer.

[0048] More preferably, the moving mechanism 300 and the jaw mechanism 200 are arranged on both sides of the rotating bottom plate 120. The jaw mechanism 200 includes a first mounting seat 250. The rotating bottom plate 120 is provided with a first avoidance opening 121. The first mounting seat 250 and the driving plate 320 are arranged on both sides of the first avoidance opening 121 and are connected by a connecting plate 122. Such a setting can optimize the layout of the jaw mechanism 200 and the moving mechanism 300.

[0049] The rotating part 110 can drive the rotating bottom plate 120 to rotate by using a motor and a rotating shaft. Since the moving mechanism 300 is installed on the rotating bottom plate 120 and the moving mechanism 300 is used to drive the telescopic movement of the jaw mechanism 200, while the rotating part 110 drives the rotating bottom plate 120 to rotate, the moving mechanism 300 can synchronously adjust the position of the jaw mechanism 200, improving the production efficiency.

[0050] Further, a sensor is provided at the material taking position. The sensor is electrically connected to the driving member 240, and the sensor is used to judge whether the workpiece is qualified.

[0051] In this embodiment, both the first connecting rod 130 and the second connecting rod 140 adopt a hollow column structure, which is not only light in weight but also firmly installed, and can provide sufficient fulcrums for the rotating mechanism 100, making the rotating mechanism 100 more stable when driving the jaw mechanism 200 to rotate.

[0052] Further, the second connecting rod 140 is oppositely arranged at the bottom of the rotating bottom plate 120.

[0053] The second connecting rod 140 is oppositely arranged at the bottom of the rotating base plate 120, providing space for the swinging of the clamping jaw mechanism 200 driven by the rotating mechanism 100. At the same time, the opposite arrangement can also provide positioning during installation, facilitating on-site installation.

[0054] Further, a sensor is provided at the material taking position. The sensor is electrically connected to the driving member 240, and the sensor is used to judge whether the workpiece is qualified.

[0055] Further, a waste box 400 is further included. The waste box 400 is arranged at the bottom of the rotating base plate 120. When the sensor judges that the workpiece is unqualified, the clamping jaw mechanism 200 transfers the material to be taken from the material taking position to the waste box 400.

[0056] During the winding of the battery cell, when the sensor arranged near the winding needle at the material taking position detects an unqualified part, it will transfer an electrical signal to the clamping jaw mechanism 200. After the clamping jaw mechanism 200 removes the unqualified battery cell, during the rotating feeding process, the unqualified battery cell will be put into the waste box 400. In this way, the unqualified parts will not affect the subsequent work, improving the work efficiency and reducing the labor intensity of production personnel.

[0057] When the battery cell winding is completed and reaches the material taking position, the clamping jaw mechanism 200 is moved by the moving mechanism 300 from the material taking waiting position to the material taking position. Under the control of the driving member 240, the gear 231 rotates clockwise to drive the first rack 232 connected to the upper clamping jaw 210 to move downward, while the second rack 233 connected to the lower clamping jaw 220 moves upward, and the upper clamping jaw 210 and the lower clamping jaw 220 move towards each other to clamp the battery cell. Subsequently, the clamping jaw mechanism 200 is driven by the moving mechanism 300 to retract to the material taking waiting position. At the same time, as the rotating mechanism 100 rotates counterclockwise by 180°, the clamping jaw mechanism 200 moves to the feeding position. Under the control of the driving member 240, the gear 231 rotates counterclockwise to drive the first rack 232 connected to the upper clamping jaw 210 to move upward, while the second rack 233 connected to the lower clamping jaw 220 moves downward, and the upper and lower clamping jaws move in the opposite direction to release the battery cell, waiting for the feeding clamping jaw to clamp the battery cell. After the battery cell is taken away, the rotating mechanism 100 drives the clamping jaw mechanism 200 to rotate clockwise by 180° to the material taking waiting position.

[0058] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A clamping device, arranged between a material taking position and a material feeding position, characterized in that: It comprises a rotating mechanism (100) and a clamping mechanism (200), wherein the clamping mechanism (200) is mounted on the rotating mechanism (100); and the clamping mechanism (200) transfers the workpiece from the material taking position to the material feeding position as the rotating mechanism (100) rotates; The clamping jaw mechanism (200) comprises an upper clamping jaw (210), a lower clamping jaw (220), a driving member (240) and a transmission assembly (230); the driving member (240) controls the opening and closing of the upper clamping jaw (210) and the lower clamping jaw (220) through a gear (231) in the transmission assembly (230).

2. The clamping device according to claim 1, characterized in that: The transmission assembly (230) comprises a gear (231), a first rack (232) and a second rack (233), wherein the gear (231) is meshedly connected between the first rack (232) and the second rack (233); One end of the upper clamping jaw (210) is connected to the first rack (232), and when the gear (231) rotates, the gear (231) drives the upper clamping jaw (210) to move through the first rack (232); one end of the lower clamping jaw (220) is connected to the second rack (233), and the gear (231) drives the lower clamping jaw (220) to move in the opposite direction of the moving direction of the upper clamping jaw (210) through the second rack (233).

3. The clamping device according to claim 2, characterized in that: The first rack (232) and the second rack (233) are arranged opposite to each other, and both the first rack (232) and the second rack (233) are provided with mounting holes.

4. The clamping device according to claim 2, characterized in that: The driving member (240) is a motor, the gear (231) is provided with a connecting hole, and the output end of the motor is connected to the connecting hole.

5. The clamping device according to claim 1, characterized in that: The rotating mechanism (100) comprises a rotating portion (110) and a rotating base plate (120), and the clamping mechanism (200) is installed on the rotating base plate (120); The rotating portion (110) is used to drive the rotating base plate (120) to rotate.

6. The clamping device according to claim 5, characterized in that: The invention also comprises a moving mechanism (300), wherein the moving mechanism (300) comprises a translation driving member (310), a driving plate (320) and a slide rail (330), wherein the driving plate (320) is slidably mounted on the rotating base plate (120) via the slide rail (330), a driving end of the translation driving member (310) is connected to the driving plate (320), and the driving plate (320) is connected to the clamping mechanism (200).

7. The clamping device according to claim 6, characterized in that: The moving mechanism (300) and the clamping mechanism (200) are arranged on both sides of the rotating base plate (120); the clamping mechanism (200) comprises a first mounting seat (250); the rotating base plate (120) is provided with a first avoidance opening (121); the first mounting seat (250) and the driving plate (320) are arranged on both sides of the first avoidance opening (121) and are connected via a connecting plate (122).

8. The clamping device according to claim 5, characterized in that: The rotating mechanism (100) further comprises a first connecting rod (130), one end of which is rotatably connected to the end of the rotating base plate (120) away from the rotating portion (110), and the other end of the first connecting rod (130) is fixedly arranged.

9. The clamping device according to claim 6, characterized in that: The material taking position is provided with a sensor, the sensor is electrically connected to the driving member (240), and the sensor is used to judge whether the workpiece is qualified.

10. The clamping device according to claim 9, characterized in that: It also includes a waste box (400) which is arranged at the bottom of the rotating base plate (120). When the sensor determines that the workpiece is unqualified, the clamping mechanism (200) transfers the workpiece from the material extraction position to the waste box (400).

Images