Clamp for assembling lithium battery

Abstract

The utility model relates to the technical field of lithium battery assembly, in particular to a clamp for lithium battery assembly. Comprising a bottom plate, two vertical frames are symmetrically and fixedly connected to the upper surface of the bottom plate, and circular grooves are formed in the vertical frames. According to the utility model, after the position of the lithium battery is rotationally adjusted, the I-shaped block is driven by the displacement mechanism to move along the axis direction of the movable groove, and then the circular plate is driven by the rotating mechanism to rotate, so that the I-shaped block rotates along with the circular plate, and the I-shaped block can be moved to any position in a plane space where the circular plate is located; the moving I-shaped block can drive the servo electric cylinder and the pressure heads to move synchronously, so that the two pressure heads can be adjusted in corresponding positions according to the areas, where the electrical components are not mounted, of the side surfaces of the lithium batteries, and the two pressure heads clamp and fix the lithium batteries of different models on the premise that the assembled electrical components are not extruded; therefore, electrical components on the lithium battery are prevented from being damaged due to extrusion, and the yield of the assembled lithium battery is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery assembly technology, and more specifically, to a fixture for assembling lithium batteries. Background Technology

[0002] Lithium-ion batteries are batteries with lithium as their main component, such as lithium cobalt oxide, lithium iron phosphate, and ternary materials. They utilize the migration of lithium ions between the positive and negative electrodes to store and release electrical energy, offering significant advantages such as high energy density, lightweight design, fast charging, and long lifespan. With continuous technological advancements, the application fields of lithium-ion batteries are becoming increasingly widespread. They not only dominate consumer electronics products such as mobile phones and laptops but also play a crucial role in electric vehicles and energy storage systems. In current lithium-ion battery manufacturing technologies, the necessary protection boards, circuit boards, and other electrical components need to be assembled onto the battery casing. During assembly, fixtures are used to secure the battery casing, facilitating the assembly of the electrical components.

[0003] The utility model with authorization announcement number CN222155383U provides a clamp for assembling lithium batteries. During use, the clamp can clamp and fix the lithium battery while facilitating the adjustment of the lithium battery orientation using relevant components as needed. This avoids workers manually adjusting the orientation of the lithium battery, saves workers' effort, delays the onset of worker fatigue, and ensures the quality and efficiency of lithium battery assembly.

[0004] However, in the aforementioned patent, when the worker rotates and adjusts the position of the lithium battery in preparation for assembling other electrical components on the other side of the lithium battery, since different electrical components have already been assembled on the other side of the lithium battery, when the two clamps come close to each other to clamp and fix the lithium battery, the clamps will apply pressure to the electrical components assembled on the lithium battery. These electrical components are easily damaged by the pressure, thereby reducing the yield of the assembled lithium battery. Utility Model Content

[0005] The purpose of this invention is to provide a fixture for assembling lithium batteries to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, one of the objectives of this utility model is to provide a lithium battery assembly fixture, including a base plate. Two uprights are symmetrically fixedly connected to the upper surface of the base plate. A circular groove is formed on the uprights, and a circular plate is rotatably arranged inside the circular groove. A rotating mechanism is provided on one side of the two uprights, which is used to drive the two circular plates to rotate synchronously. A movable groove is formed at the center of the circular plate, and an I-shaped block is slidably arranged inside the movable groove. A servo electric cylinder is fixedly installed on the side of the two I-shaped blocks that is far apart from each other. One end of the piston rod of the servo electric cylinder passes through the I-shaped block and is fixedly connected to a pressure head. The pressure head is located between the two circular plates. A displacement mechanism is provided on the side of the circular plate that is far away from the pressure head, and the displacement mechanism is used to drive the corresponding I-shaped block to move along the inner wall of the movable groove.

[0007] As a further improvement to this technical solution, the displacement mechanism includes two side plates symmetrically and fixedly connected to one side of the circular plate, a lead screw rotatably connected between the two side plates, a second motor for driving the lead screw to rotate is installed on one of the side plates, the I-shaped block is threadedly connected to the lead screw, a guide rod is fixedly connected between the two side plates, and the I-shaped block is slidably sleeved on the guide rod.

[0008] As a further improvement to this technical solution, the upright frame is provided with an intermediate groove that communicates with the circular groove, and a driven gear is coaxially fixedly connected to the circumferential side wall of the circular plate, the driven gear being disposed inside the intermediate groove.

[0009] As a further improvement to this technical solution, the rotating mechanism includes a first motor fixedly mounted on the upper surface of the base plate. A transmission rod is coaxially fixedly connected to the output shaft of the first motor. A support plate is rotatably connected to one end of the transmission rod. The support plate is fixedly mounted on the upper surface of the base plate. Two driving gears are coaxially fixedly connected to the transmission rod, and the two driving gears mesh with two driven gears respectively.

[0010] As a further improvement to this technical solution, the top of the base plate is provided with an installation groove, which is located between two uprights. A placement plate is provided at the top of the installation groove, and a stepper motor for driving the placement plate to rotate is provided at the bottom of the placement plate. The stepper motor is fixedly installed on the bottom surface inside the installation groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This lithium battery assembly fixture, after adjusting the position of the lithium battery by rotation, drives the I-shaped block to move along the axis of the movable slot through a displacement mechanism, and then drives the circular plate to rotate through a rotation mechanism, so that the I-shaped block rotates together with the circular plate. This allows the I-shaped block to move to any position in the plane space where the circular plate is located. The moving I-shaped block will drive the servo cylinder and the pressure head to move synchronously, so that the two pressure heads can be adjusted to the corresponding positions according to the areas on the side of the lithium battery where no electrical components are installed. This allows the two pressure heads to clamp and fix different types of lithium batteries without squeezing the assembled electrical components, avoiding damage to the electrical components on the lithium battery due to squeezing, and improving the yield rate of the assembled lithium battery. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the present invention after the frame and circular plate are combined;

[0016] Figure 4 This is a schematic diagram of the support frame of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the circular plate and the I-shaped block combined according to this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the I-shaped block of this utility model;

[0019] Figure 7 This is a schematic diagram of the circular plate of this utility model.

[0020] The meanings of the labels in the diagram are as follows:

[0021] 1. Base plate; 11. Mounting slot;

[0022] 2. Upright frame; 21. Intermediate channel; 22. Circular channel;

[0023] 3. Circular plate; 31. Movable groove; 32. Driven gear;

[0024] 4. I-shaped blocks;

[0025] 5. Servo electric cylinder; 51. Pressure head;

[0026] 6. Rotating mechanism; 61. First motor; 62. Transmission rod; 63. Support plate; 64. Drive gear;

[0027] 7. Displacement mechanism; 71. Side plate; 72. Guide rod; 73. Lead screw; 74. Second motor;

[0028] 8. Place the tray. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figures 1-7 As shown, one of the objectives of this embodiment is to provide a fixture for assembling lithium batteries, including a base plate 1. Two uprights 2 are symmetrically fixedly connected to the upper surface of the base plate 1. A circular groove 22 is formed on the uprights 2. A circular plate 3 is rotatably arranged inside the circular groove 22. A movable groove 31 is formed at the center of the circular plate 3. An I-shaped block 4 is slidably arranged inside the movable groove 31. Servo cylinders 5 are fixedly installed on the opposite sides of the two I-shaped blocks 4. Both servo cylinders 5 are electrically connected to an external control device. One end of the piston rod of the servo cylinder 5 passes through the I-shaped block 4 and is fixedly connected to a pressure head 51. The pressure head 51 is located between the two circular plates 3. A groove is formed on the top of the base plate 1. An installation slot 11 is provided, which is located between two uprights 2. A placement tray 8 is provided at the top of the installation slot 11. The upper surface of the placement tray 8 is used to place a cube-shaped lithium battery. After the worker places the lithium battery to be assembled in the center of the upper surface of the placement tray 8, the lithium battery is located between two pressure heads 51. The worker synchronously starts two servo cylinders 5 through the control equipment, so that the piston rods of the two servo cylinders 5 drive the two pressure heads 51 to approach the lithium battery until the two pressure heads 51 contact the opposite sides of the lithium battery, thereby clamping and fixing the lithium battery to the upper surface of the placement tray 8, which makes it convenient for the worker to assemble electrical components on the side of the lithium battery.

[0032] Different functional electrical components need to be assembled on different sides of the lithium battery. To facilitate the installation of electrical components on different sides of the large-volume lithium battery, a stepper motor is provided at the bottom of the placement tray 8 to drive the placement tray 8 to rotate. The stepper motor is fixedly installed on the bottom surface inside the mounting slot 11. The stepper motor is also electrically connected to an external control device. When the two pressure heads 51 are not clamping the lithium battery, the worker starts the stepper motor through the control device, so that the output shaft of the stepper motor rotates slowly. The output shaft of the stepper motor drives the placement tray 8 and the lithium battery on the placement tray 8 to rotate. When the side of the lithium battery on which the specified electrical component needs to be installed rotates to the position facing the worker's face, the worker turns off the stepper motor, so that the placement tray 8 and the lithium battery on the placement tray 8 stop rotating. At this time, the two pressure heads 51 are brought closer to each other, and the two pressure heads 51 that are brought closer to each other contact the other two sides of the lithium battery. At this time, the position of the lithium battery is fixed again. The worker then installs the electrical component in the predetermined position on that side of the lithium battery, so that the worker can install electrical components on other side walls of the lithium battery.

[0033] When workers rotate and adjust the position of the lithium battery in preparation for assembling other electrical components on the other side of the lithium battery, if there are already assembled electrical components on the other side of the lithium battery, and the two pressure heads 51 clamp the lithium battery, the pressure heads 51 may press on the electrical components and damage them. To solve this problem, a rotating mechanism 6 is provided on one side of the two uprights 2. The rotating mechanism 6 is used to drive the two circular plates 3 to rotate synchronously. When the circular plates 3 rotate, the circular plates 3 drive the I-shaped block 4, the servo cylinder 5, and the pressure heads 51 to rotate synchronously. At the same time, on the side of the circular plate 3 away from the pressure heads 51... A displacement mechanism 7 is provided, which is used to drive the corresponding I-shaped block 4 to move along the inner wall of the movable groove 31. The moving I-shaped block 4 will drive the servo electric cylinder 5 and the pressure head 51 to move synchronously. The worker adjusts the position of the pressure head 51 in this way, so that the pressure head 51 moves to the area on the side of the lithium battery where no electrical components are installed. Then, the piston rod of the servo electric cylinder 5 extends to drive the pressure head 51 closer to the lithium battery. This way, when the two pressure heads 51 clamp and fix the lithium battery, the pressure head 51 avoids contact between the electrical components and the empty area on the lithium battery, and avoids the pressure head 51 squeezing the electrical components, thus improving the yield rate of the assembled lithium battery.

[0034] The structure of the rotating mechanism 6 is described in detail below, with reference to... Figure 1The rotating mechanism 6 includes a first motor 61 fixedly mounted on the upper surface of the base plate 1. A transmission rod 62 is coaxially fixedly connected to the output shaft of the first motor 61. One end of the transmission rod 62 is rotatably connected to a support plate 63, which is fixedly mounted on the upper surface of the base plate 1. Two drive gears 64 are coaxially fixedly connected to the transmission rod 62. An intermediate groove 21 communicating with the circular groove 22 is provided on the upright frame 2. A driven gear 32 is coaxially fixedly connected to the circumferential side wall of the circular plate 3 and is located in the intermediate groove. Inside 21, two driving gears 64 mesh with two driven gears 32 respectively. The first motor 61 is electrically connected to an external control device. After the worker starts the first motor 61 through the control device, the output shaft of the first motor 61 drives the transmission rod 62 to rotate slowly. The transmission rod 62 drives the two driving gears 64 to rotate synchronously. Through the meshing transmission of the driving gears 64 and the driven gears 32, the driven gears 32 drive the circular plate 3 to rotate. The circular plate 3 will drive the I-shaped block 4, the servo electric cylinder 5, and the pressure head 51 to rotate synchronously.

[0035] The structure of displacement mechanism 7 is detailed below, referring to... Figure 5 The displacement mechanism 7 includes two side plates 71 symmetrically fixedly connected to one side of the circular plate 3. A lead screw 73 is rotatably connected between the two side plates 71. A second motor 74 for driving the lead screw 73 to rotate is installed on one of the side plates 71. An I-shaped block 4 is threadedly connected to the lead screw 73. A guide rod 72 is fixedly connected between the two side plates 71. The I-shaped block 4 is slidably sleeved on the guide rod 72. The axes of the lead screw 73, the guide rod 72, and the movable groove 31 are parallel to each other, so that the I-shaped block 4 can only move along the axis of the guide rod 72. The two second motors 74 in the two displacement mechanisms 7 are electrically connected to the same control device, which can control the second motors. The rotation direction and speed of the output shaft 74 are controlled by the worker through the control equipment. After the worker starts the two second motors 74 synchronously, the output shaft of the second motor 74 drives the lead screw 73 to rotate slowly. Through the threaded connection between the lead screw 73 and the I-shaped block 4, the I-shaped block 4 moves along the axis of the guide rod 72. The I-shaped block 4 will drive the servo cylinder 5 and the pressure head 51 to move synchronously. The rotation speed and rotation direction of the output shafts of the two second motors 74 are the same, so that the two pressure heads 51 are always on the same axis. This ensures that when the two pressure heads 51 clamp and fix the lithium battery, the forces on both sides of the lithium battery are balanced, and the position of the lithium battery will not change, which is convenient for workers to assemble electrical components.

[0036] The displacement mechanism 7 drives the I-shaped block 4 to move along the axis of the movable groove 31, adjusting the distance between the I-shaped block 4 and the edge of the circular plate 3. Then, the rotation mechanism 6 drives the circular plate 3 to rotate, so that the I-shaped block 4 rotates together with the circular plate 3. At this time, the pressure head 51 moves along the x and y axes in a planar coordinate system, so that the I-shaped block 4 can move to any position in the planar space where the circular plate 3 is located. The moving I-shaped block 4 will drive the servo electric cylinder 5 and the pressure head 51 to move synchronously, so that the two pressure heads 51 can adjust the corresponding position according to the area on the side of the lithium battery where no electrical components are installed, so that the two pressure heads 51 can clamp and fix different types of lithium batteries without damaging the electrical components.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fixture for assembling lithium batteries, comprising a base plate (1), characterized in that: Two uprights (2) are symmetrically fixedly connected to the upper surface of the base plate (1). A circular groove (22) is provided on the upright (2). A circular plate (3) is rotatably arranged inside the circular groove (22). A rotating mechanism (6) is provided on one side of the two uprights (2). The rotating mechanism (6) is used to drive the two circular plates (3) to rotate synchronously. A movable groove (31) is provided at the center of the circular plate (3). An I-shaped block (4) is slidably arranged inside the movable groove (31). A servo electric cylinder (5) is fixedly installed on the side of the two I-shaped blocks (4) that is far away from each other. One end of the piston rod of the servo electric cylinder (5) passes through the I-shaped block (4) and is fixedly connected to a pressure head (51). The pressure head (51) is located between the two circular plates (3). A displacement mechanism (7) is provided on the side of the circular plate (3) that is far away from the pressure head (51). The displacement mechanism (7) is used to drive the corresponding I-shaped block (4) to move along the inner wall of the movable groove (31).

2. The lithium battery assembly fixture according to claim 1, characterized in that: The displacement mechanism (7) includes two side plates (71) symmetrically fixedly connected to one side of the circular plate (3). A lead screw (73) is rotatably connected between the two side plates (71). A second motor (74) for driving the lead screw (73) to rotate is installed on one of the side plates (71). The I-shaped block (4) is threadedly connected to the lead screw (73). A guide rod (72) is fixedly connected between the two side plates (71). The I-shaped block (4) is slidably sleeved on the guide rod (72).

3. The lithium battery assembly fixture according to claim 1, characterized in that: The support frame (2) has an intermediate groove (21) that communicates with the circular groove (22). A driven gear (32) is coaxially fixedly connected to the circumferential side wall of the circular plate (3). The driven gear (32) is located inside the intermediate groove (21).

4. The lithium battery assembly fixture according to claim 3, characterized in that: The rotating mechanism (6) includes a first motor (61) fixedly installed on the upper surface of the base plate (1). A transmission rod (62) is coaxially fixedly connected to the output shaft of the first motor (61). A support plate (63) is rotatably connected to one end of the transmission rod (62). The support plate (63) is fixedly installed on the upper surface of the base plate (1). Two drive gears (64) are coaxially fixedly connected to the transmission rod (62). The two drive gears (64) mesh with two driven gears (32) respectively.

5. The lithium battery assembly fixture according to claim 1, characterized in that: The base plate (1) has an installation groove (11) on its top. The installation groove (11) is located between two uprights (2). The top of the installation groove (11) is provided with a placement plate (8). The bottom of the placement plate (8) is provided with a stepper motor for driving the placement plate (8) to rotate. The stepper motor is fixedly installed on the bottom surface inside the installation groove (11).

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