An automatic screw locking mechanism for lithium battery packs

Abstract

This utility model discloses an automatic screw locking mechanism for lithium battery packs, including a mounting frame, a mounting base, a drive motor, a feeding assembly, and a moving mechanism. The mounting base is located on the front of the mounting frame, and the drive motor is located on the front of the mounting base. The output end of the drive motor is connected to a tightening screw for fastening the screw. The feeding assembly is located on the front of the mounting base and is used to feed and position the screw fastened by the tightening screw. The moving mechanism is located between the mounting frame and the mounting base and is used to drive the drive motor and the feeding assembly to move. This utility model utilizes the cooperative use of the mounting base, drive motor, tightening screw, and feeding assembly. The feeding assembly includes a mounting sleeve, a mounting block, a feed tube, clamping parts, and a limiting assembly. When the screw enters between the two clamping parts through the feed tube, and the clamping parts move to the position where the lithium battery pack screw is fastened, the drive motor can drive the tightening screw to fasten the screw.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production, and in particular to an automatic screw locking mechanism for lithium battery packs. Background Technology

[0002] A lithium battery pack is a battery system composed of multiple lithium battery cells. It is widely used in electric vehicles, portable electronic devices, energy storage systems and other fields. A lithium battery pack provides the required voltage and capacity by connecting multiple battery cells in series or parallel.

[0003] During the production and processing of lithium battery packs, screws are typically used to fasten the connections to ensure the overall stability of the lithium battery pack. However, when tightening the screws at the connection points of lithium battery packs, manual hand-held electric tightening tools are usually used. This tightening method not only reduces the efficiency of lithium battery pack production but also reduces the automation of lithium battery pack production. Therefore, it is necessary to automatically lock the screws of lithium battery packs. Utility Model Content

[0004] The purpose of this invention is to provide an automatic screw locking mechanism for lithium battery packs to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic screw locking mechanism for a lithium battery pack, comprising:

[0006] Mounting rack;

[0007] Mounting base, the mounting base being disposed on the front side of the mounting bracket;

[0008] A drive motor is disposed on the front side of the mounting base, and the output end of the drive motor is connected to a screw fastening rod for fastening screws.

[0009] A feeding assembly is disposed on the front side of the mounting base and is used to feed and position the screws fastened by the lead screw.

[0010] A moving mechanism is disposed between the mounting frame and the mounting base, and the moving mechanism is used to drive the drive motor and the feeding assembly to move.

[0011] Preferably, the feeding assembly includes:

[0012] The mounting sleeve is fixedly installed on the bottom of the front side of the mounting base, and the outer wall of the tightening rod is slidably sleeved with the mounting sleeve.

[0013] Mounting block, which is fixedly connected to the bottom of mounting sleeve;

[0014] A feed pipe is installed at an angle on the front of the mounting block, and the feed pipe is used to feed screws.

[0015] Preferably, the feeding assembly further includes:

[0016] A clamping component is symmetrically arranged at the bottom of the mounting sleeve, and a storage chamber corresponding to the screw is opened on one side of the clamping component;

[0017] The feed chute is located on the front side of the clamping member and corresponds to the feed pipe.

[0018] A limiting component is disposed on the top of one side of the clamping member.

[0019] Preferably, the feeding assembly further includes:

[0020] A connecting bolt, the outer wall of which is threadedly connected to the mounting block;

[0021] A through hole is provided on the front side of the clamping member, and the outer wall of the connecting bolt is rotatably sleeved with the inner cavity of the through hole.

[0022] Preferably, the limiting component includes:

[0023] The connecting block has a mounting groove corresponding to the clamping member at the bottom of the side of the mounting sleeve, and the connecting block is located inside the mounting groove;

[0024] An elastic element is fixedly connected to the bottom of the connecting block, and the elastic element is pressed against the top of one side of the clamping element.

[0025] Preferably, the limiting component further includes:

[0026] The card block is fixedly connected to the top of the connecting block, and the top of the inner wall of the mounting groove is provided with a card slot that matches the card block;

[0027] The first magnet is fixedly connected to the top of the card block;

[0028] The second magnet is fixedly connected inside the slot, and the opposite magnetic poles of the second magnet are opposite to those of the first magnet.

[0029] Preferably, the moving mechanism includes:

[0030] A first drive unit is mounted on the top of the mounting bracket and is used to drive the mounting base to move left and right.

[0031] A second drive unit is installed between the mounting base and the first drive unit, and the second drive unit is used to drive the mounting base to move back and forth.

[0032] The third drive unit is installed between the mounting base and the second drive unit, and the third drive unit is used to drive the mounting base to move up and down.

[0033] The fourth drive unit is installed between the mounting base and the drive motor, and is used to drive the drive motor to move up and down.

[0034] The technical effects and advantages of this utility model are as follows:

[0035] This utility model utilizes the combined use of a mounting base, a drive motor, a tightening screw, and a feeding assembly. The feeding assembly includes a mounting sleeve, a mounting block, a feed pipe, clamping parts, and a limiting assembly. When the screw enters between the two clamping parts through the feed pipe, and the clamping parts move to the position of the lithium battery pack fastening screw, the drive motor can drive the tightening screw to tighten the screw, thus achieving automatic screw tightening. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0037] Figure 2 This is a schematic diagram of the overall structure of the mounting sleeve of this utility model;

[0038] Figure 3 This is a schematic diagram of the internal structure of the mounting sleeve portion of this utility model from the front.

[0039] Figure 4 This is a schematic diagram of the overall structure of the clamping component of this utility model;

[0040] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0041] In the diagram: 1. Mounting bracket; 2. Mounting base; 3. Drive motor; 4. Tightening screw; 5. Feeding assembly; 51. Mounting sleeve; 52. Mounting block; 53. Feed pipe; 54. Clamping component; 55. Limiting assembly; 551. Elastic component; 552. Connecting block; 553. Locking block; 554. First magnet; 555. Second magnet; 56. Connecting bolt; 57. Through hole; 58. Feed groove; 6. First drive unit; 7. Second drive unit; 8. Third drive unit; 9. Fourth drive unit. Detailed Implementation

[0042] 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.

[0043] This utility model provides, for example Figure 1-5 The image shows an automatic screw locking mechanism for a lithium battery pack.

[0044] Example 1

[0045] The device includes a mounting frame 1, a mounting base 2, a drive motor 3, a feeding assembly 5, and a moving mechanism. The mounting base 2 is located on the front of the mounting frame 1, and the drive motor 3 is located on the front of the mounting base 2. The output end of the drive motor 3 is connected to a screw tightening rod 4 for fastening screws. The feeding assembly 5 is located on the front of the mounting base 2 and is used to feed and position the screws fastened by the screw tightening rod 4. The moving mechanism is located between the mounting frame 1 and the mounting base 2 and is used to drive the drive motor 3 and the feeding assembly 5 to move. Under the action of the moving mechanism, the feeding assembly 5 can be moved to the position of the lithium battery pack fastening screw. Then, the drive motor 3 drives the screw tightening rod 4 to fasten the screw on the feeding assembly 5 to the connection of the lithium battery pack, thereby realizing automatic screw tightening.

[0046] Furthermore, the feeding assembly 5 includes an mounting sleeve 51, a mounting block 52, and a feed pipe 53. The mounting sleeve 51 is fixedly installed on the bottom of the front side of the mounting base 2. The outer wall of the tension rod 4 is slidably sleeved with the mounting sleeve 51. The mounting block 52 is fixedly connected to the bottom of the mounting sleeve 51. The feed pipe 53 is installed obliquely on the front side of the mounting block 52. The feed pipe 53 is used to convey screws. The feed pipe 53 is connected to an external vibrating feeding plate to realize automatic feeding. The vibrating feeding plate is an existing mature equipment and will not be described in detail here.

[0047] Furthermore, the feeding assembly 5 also includes a clamping member 54, a feeding groove 58, a limiting component 55, a connecting bolt 56, and a through hole 57. The clamping member 54 is symmetrically arranged at the bottom of the mounting sleeve 51. A storage chamber corresponding to the screw is opened on one side of the clamping member 54. The feeding groove 58 is opened on the front of the clamping member 54 and corresponds to the feeding pipe 53. Figure 4As shown, when the tightening screw 4 rises inside the mounting sleeve 51, the tightening screw 4 no longer obstructs the feed groove 58. The screw inside the feed tube 53 can enter the storage chamber on the opposite side of the two clamping parts 54 through the feed groove 58. The bottom of the inner wall of the storage chamber is smaller than the diameter of the top of the screw and larger than the diameter of the bottom of the outer wall of the screw, so that the screw can be clamped in the storage chamber. The limiting component 55 is set on the top of one side of the clamping part 54. The outer wall of the connecting bolt 56 is threadedly connected to the mounting block 52. The through hole 57 is opened on the front of the clamping part 54. The outer wall of the connecting bolt 56 is rotatably sleeved with the inner cavity of the through hole 57. So when the tightening screw 4 tightens the screw, the screw can squeeze the clamping part 54, causing the bottoms of the two clamping parts 54 to move away from each other, thereby separating the screw from the clamping part 54.

[0048] In particular, the limiting component 55 includes a connecting block 552 and an elastic element 551. The bottom of the side of the mounting sleeve 51 is provided with a mounting groove corresponding to the clamping member 54. The connecting block 552 is located inside the mounting groove. The elastic element 551 is fixedly connected to the bottom of the connecting block 552. The elastic element 551 is pressed and fitted against the top of one side of the clamping member 54. The elastic element 551 can elastically press and limit the top of one side of the clamping member 54, so that after the screw is separated from the clamping member 54, the two clamping members 54 can rotate and reset.

[0049] Furthermore, the limiting component 55 also includes a locking block 553, a first magnet 554, and a second magnet 555. The locking block 553 is fixedly connected to the top of the connecting block 552. The top of the inner wall of the mounting groove is provided with a slot that matches the locking block 553. The first magnet 554 is fixedly connected to the top of the locking block 553, and the second magnet 555 is fixedly connected to the inside of the slot. The opposite magnetic poles of the second magnet 555 and the first magnet 554 are opposite. The second magnet 555 and the first magnet 554 can improve the stability of the connecting block 552 being locked in the mounting groove by the locking block 553. In addition, the elastic member 551 is in contact with the clamping member 54, which can also limit the connection block 552.

[0050] Example 2

[0051] Based on Embodiment 1, the moving mechanism includes a first drive unit 6, a second drive unit 7, a third drive unit 8, and a fourth drive unit 9. The first drive unit 6 is mounted on the top of the mounting bracket 1 and is used to drive the mounting base 2 to move left and right. The second drive unit 7 is mounted between the mounting base 2 and the first drive unit 6 and is used to drive the mounting base 2 to move back and forth. The third drive unit 8 is used to drive the mounting base 2 to move up and down. The fourth drive unit 9 is mounted between the mounting base 2 and the drive motor 3 and is used to drive the drive motor 3 to move up and down. The first drive unit 6, second drive unit 7... Both the third drive unit 8 and the fourth drive unit 9 consist of a cylinder, a slide rail, and a connecting seat, and are connected to the controller. The controller controls the operation of the first drive unit 6, the second drive unit 7, the third drive unit 8, and the fourth drive unit 9, so that the feeding assembly 5 cooperates with the drive motor 3 and the tightening screw 4 to tighten the screw. When the feeding assembly 5, the drive motor 3, and the tightening screw 4 are working, a feedback sensor is also provided to monitor the torque and position during the locking process to ensure the accuracy of locking. The feedback sensor, the first drive unit 6, the second drive unit 7, the third drive unit 8, the fourth drive unit 9, and the controller are all existing mature products and will not be described in detail here.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lithium battery pack screw automatic locking mechanism, characterized in that, include: Mounting bracket (1); Mounting base (2), which is disposed on the front side of mounting bracket (1); A drive motor (3) is disposed on the front side of the mounting base (2), and the output end of the drive motor (3) is connected to a screw fastening rod (4) for fastening screws. Feeding assembly (5), the feeding assembly (5) is disposed on the front of the mounting base (2), the feeding assembly (5) is used to feed and position the screws fastened by the screw fastener (4); The moving mechanism is disposed between the mounting frame (1) and the mounting base (2), and is used to drive the drive motor (3) and the feeding assembly (5) to move.

2. The automatic screw locking mechanism for a lithium battery pack according to claim 1, wherein, The feeding assembly (5) includes: The mounting sleeve (51) is fixedly installed on the bottom of the front side of the mounting base (2), and the outer wall of the tension rod (4) is slidably sleeved with the mounting sleeve (51). Mounting block (52), which is fixedly connected to the bottom of mounting sleeve (51); Feed pipe (53) is obliquely installed on the front of mounting block (52) and is used to feed screws.

3. The automatic screw locking mechanism for a lithium battery pack according to claim 2, wherein The feeding assembly (5) also includes: Clamping member (54), the clamping member (54) is symmetrically arranged at the bottom of the mounting sleeve (51), and a storage chamber corresponding to the screw is opened on one side of the clamping member (54); Feed groove (58) is provided on the front side of clamping member (54) and the feed groove (58) corresponds to feed pipe (53); A limiting component (55) is disposed on the top of one side of the clamping member (54).

4. The automatic screw locking mechanism for a lithium battery pack according to claim 3, wherein The feeding assembly (5) also includes: A connecting bolt (56) is provided, the outer wall of which is threadedly connected to the mounting block (52); A through hole (57) is provided on the front side of the clamping member (54), and the outer wall of the connecting bolt (56) is rotatably sleeved with the inner cavity of the through hole (57).

5. The automatic screw locking mechanism for a lithium battery pack according to claim 4, characterized in that, The limiting component (55) includes: The connecting block (552) has a mounting groove corresponding to the clamping member (54) at the bottom of the side of the mounting sleeve (51), and the connecting block (552) is located inside the mounting groove; An elastic element (551) is fixedly connected to the bottom of the connecting block (552), and the elastic element (551) is pressed against the top of one side of the clamping member (54).

6. The automatic screw locking mechanism for a lithium battery pack according to claim 5, characterized in that, The limiting component (55) also includes: The card block (553) is fixedly connected to the top of the connecting block (552), and the top of the inner wall of the mounting groove is provided with a card slot that matches the card block (553); The first magnet (554) is fixedly connected to the top of the card block (553); The second magnet (555) is fixedly connected to the inside of the slot, and the opposite magnetic poles of the second magnet (555) and the first magnet (554) are opposite to each other.

7. The automatic screw locking mechanism for a lithium battery pack according to claim 1, characterized in that, The moving mechanism includes: The first drive unit (6) is mounted on the top of the mounting bracket (1) and is used to drive the mounting base (2) to move left and right. The second drive unit (7) is installed between the mounting base (2) and the first drive unit (6), and the second drive unit (7) is used to drive the mounting base (2) to move back and forth; The third drive unit (8) is installed between the mounting base (2) and the second drive unit (7), and the third drive unit (8) is used to drive the mounting base (2) to move up and down; The fourth drive unit (9) is installed between the mounting base (2) and the drive motor (3), and the fourth drive unit (9) is used to drive the drive motor (3) to move up and down.

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