Clamp for assembling lithium ion battery

Abstract

The clamp for assembling the lithium ion battery comprises a bottom plate and four baffles which are arranged on the bottom plate and distributed in an array mode, strip-shaped grooves are formed in the side walls of the baffles in a penetrating mode, first threaded rods are fixedly connected to the end faces of the baffles, butterfly nuts are connected to the side walls of the first threaded rods in a threaded mode, and the butterfly nuts are connected to the end faces of the baffles in a threaded mode. The first threaded rod is inserted into the strip-shaped groove of the adjacent baffle, an elastic mechanism is arranged between the butterfly nut and the baffle, the tightening force of the butterfly nut can be visually displayed through the elastic mechanism and the like, and the situation that the tightening force is difficult to control by an operator during tightening, and the tightening force is too tight or too loose is prevented. In addition, through a second limiting mechanism and the like, after the butterfly nut is screwed down, the butterfly nut is limited, rotation loosening is prevented, the stability of the clamp is ensured, and then the reliability and the stability of the lithium ion battery are ensured.

Description

Technical Field

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

[0002] In the production and manufacturing process of lithium-ion batteries, the assembly process is crucial. Lithium-ion battery assembly jigs are often used in the assembly process to arrange and combine multiple cells, and finally, through welding and other operations, a large lithium-ion battery is formed.

[0003] Current lithium-ion battery assembly fixtures use threaded rods and wing nuts to connect and combine multiple baffles to form a fixture. Connecting plates are then welded to connect the individual cells. Tightening the wing nuts secures the connection between the baffles. However, operators often struggle to control the tightening force, resulting in over-tightening or under-tightening. This can damage the lithium-ion batteries or cause unstable connections, affecting the reliability and stability of the lithium-ion batteries. Furthermore, the wing nuts are prone to loosening during use, affecting the stability of the fixture and consequently impacting the reliability and stability of the lithium-ion batteries.

[0004] Therefore, there is an urgent need for a fixture for assembling lithium-ion batteries to solve the above problems. Utility Model Content

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

[0006] To achieve the above objectives, this utility model provides the following technical solution: a clamp for assembling lithium-ion batteries, comprising a base plate and four arrayed baffles disposed on the base plate. The sidewalls of the baffles are provided with through slots, and the end faces of the baffles are fixedly connected to a first threaded rod. The sidewalls of the first threaded rod are threaded with wing nuts. The first threaded rod is inserted into the slots of adjacent baffles. A spring mechanism is provided between the wing nuts and the baffles, and the spring mechanism is used to provide spring force to the baffles.

[0007] The elastic mechanism includes a first retaining ring and a second retaining ring sleeved on the side wall of the first threaded rod. The first retaining ring and the second retaining ring are connected by a spring. A first limiting mechanism is provided between the second retaining ring and the baffle, and the first limiting mechanism is used to limit the second retaining ring.

[0008] The first limiting mechanism includes a limiting frame fixedly connected to the top of the baffle, an L-shaped stop bar slidably connected inside the limiting frame, a fastening mechanism between the L-shaped stop bar and the baffle, an indicating mechanism between the L-shaped stop bar and the baffle, and a second limiting mechanism between the L-shaped stop bar and the wing nut.

[0009] The fastening mechanism includes a mounting block fixedly connected to the end of the L-shaped stop bar, and a second threaded rod is threadedly connected to the top of the mounting block. A knob is fixedly connected to the top of the second threaded rod, and the second threaded rod is abutted and fastened against the baffle.

[0010] The second limiting mechanism includes an inclined block fixedly sleeved on the side wall of the wing nut, and the side wall of the inclined block is provided with multiple arrayed inclined surfaces. The side wall of the L-shaped stop bar is rotatably connected to a rotating rod, and the side wall of the rotating rod is fixedly sleeved with a stop block. The side wall of the rotating rod is sleeved with a torsion spring, and the two ends of the torsion spring are respectively fixed to the L-shaped stop bar and the stop block. A pressing mechanism is provided between the stop block and the L-shaped stop bar.

[0011] The pressing mechanism includes a fixed rod fixedly connected to the side wall of the L-shaped stop bar, and a pressing plate fixedly connected to the side wall of the stop bar, with the pressing plate abutting against the fixed rod.

[0012] The indicating mechanism includes a fixed block fixedly connected to the top of the baffle, and a plurality of scale blocks arranged in an array are fixedly connected to the top of the fixed block. An indicating block is fixedly connected to the side wall of the L-shaped lever.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model provides a clamp for assembling lithium-ion batteries. Through a spring mechanism, it can intuitively display the tightening force of the wing nut, preventing the operator from having difficulty controlling the tightening force during tightening, resulting in overtightness or looseness, which could damage the lithium-ion battery or cause unstable connection, thus ensuring the reliability and stability of the lithium-ion battery.

[0015] 2. The present invention provides a clamp for assembling lithium-ion batteries, which, through a second limiting mechanism, limits the wing nut after it is tightened to prevent it from loosening and ensure the stability of the clamp, thereby guaranteeing the reliability and stability of the lithium-ion battery. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the elastic mechanism structure of this utility model;

[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0020] In the diagram: 101, base plate; 102, baffle; 103, first threaded rod; 104, strip groove; 105, wing nut; 201, limit frame; 202, L-shaped stop bar; 301, mounting block; 302, second threaded rod; 303, knob; 401, fixing block; 402, scale block; 403, indicator block; 501, inclined block; 502, rotating rod; 503, stop block; 504, inclined surface; 505, torsion spring; 601, fixing rod; 602, pressing plate; 7, first retaining ring; 8, second retaining ring; 9, spring. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 The present invention provides a lithium-ion battery assembly fixture, including a base plate 101 and four arrayed baffles 102 disposed on the base plate 101. The side wall of the baffle 102 is provided with a through groove 104. The end face of the baffle 102 is fixedly connected to a first threaded rod 103, and the side wall of the first threaded rod 103 is threadedly connected to a wing nut 105. The first threaded rod 103 is inserted into the groove 104 of the adjacent baffle 102. A spring mechanism is provided between the wing nut 105 and the baffle 102, and the spring mechanism is used to provide spring force to the baffle 102.

[0023] The elastic mechanism includes a first retaining ring 7 and a second retaining ring 8 sleeved on the side wall of the first threaded rod 103. The first retaining ring 7 and the second retaining ring 8 are connected by a spring 9. A first limiting mechanism is provided between the second retaining ring 8 and the baffle 102, and the first limiting mechanism is used to limit the second retaining ring 8. Through the elastic mechanism, the tightening force of the wing nut 105 can be intuitively displayed, preventing the operator from having difficulty controlling the tightening force during tightening, resulting in over-tightening or over-loosening, which could damage the lithium-ion battery or cause unstable connection, thus ensuring the reliability and stability of the lithium-ion battery. In addition, the second limiting mechanism limits the wing nut 105 after it is tightened, preventing it from rotating loosely, ensuring the stability of the clamp, and thus ensuring the reliability and stability of the lithium-ion battery.

[0024] The first limiting mechanism includes a limiting frame 201 fixedly connected to the top of the baffle 102. An L-shaped stop bar 202 is slidably connected inside the limiting frame 201. A fastening mechanism is provided between the L-shaped stop bar 202 and the baffle 102. An indicating mechanism is provided between the L-shaped stop bar 202 and the baffle 102. A second limiting mechanism is provided between the L-shaped stop bar 202 and the wing nut 105. When the L-shaped stop bar 202 slides inside the limiting frame 201, the distance between the L-shaped stop bar 202 and the second retaining ring 8 changes accordingly. When the L-shaped stop bar 202 contacts and abuts against the second retaining ring 8, the elastic force of the spring 9 changes with the distance between the L-shaped stop bar 202 and the second retaining ring 8, thereby limiting the tightening force of the wing nut 105. This prevents the operator from having difficulty controlling the tightening force during tightening, resulting in over-tightening or over-loosening, which could damage the lithium-ion battery or cause unstable connection, thus ensuring the reliability and stability of the lithium-ion battery.

[0025] The fastening mechanism includes a mounting block 301 fixedly connected to the end of the L-shaped stop bar 202, and a second threaded rod 302 is threadedly connected to the top of the mounting block 301. A knob 303 is fixedly connected to the top of the second threaded rod 302, and the second threaded rod 302 is abutted and fastened to the baffle 102. When the knob 303 drives the second threaded rod 302 to rotate forward and backward within the mounting block 301, it achieves the function of locking and unlocking the L-shaped stop bar 202.

[0026] The second limiting mechanism includes an inclined block 501 fixedly sleeved on the side wall of the wing nut 105, and the side wall of the inclined block 501 is provided with multiple arrayed inclined surfaces 504. A rotating rod 502 is rotatably connected to the side wall of the L-shaped stop bar 202, and a stop block 503 is fixedly sleeved on the side wall of the rotating rod 502. A torsion spring 505 is sleeved on the side wall of the rotating rod 502, and both ends of the torsion spring 505 are fixed to the L-shaped stop bar 202 and the stop block 503 respectively. A pressing mechanism is provided between the stop block 503 and the L-shaped stop bar 202. When the wing nut 105... During rotation, the inclined block 501 rotates. At this time, the stop block 503 slides on the inclined plane 504 and rotates at a small angle around the axis of the rotating rod 502. The torsion spring 505 twists. When the stop block 503 passes the inclined plane 504, the stop block 503 returns to its original position under the action of the torsion spring 505 and contacts the next inclined plane 504. When the wing nut 105 stops rotating, the stop block 503 abuts against the inclined block 501, restricting the wing nut 105 from rotating loosely, ensuring the stability of the clamp, and thus ensuring the reliability and stability of the lithium-ion battery.

[0027] The pressing mechanism includes a fixed rod 601 fixedly connected to the side wall of the L-shaped stop bar 202, and a pressing plate 602 fixedly connected to the side wall of the stop block 503, with the pressing plate 602 abutting against the fixed rod 601. When it is necessary to rotate the wing nut 105 in the opposite direction, the pressing plate 602 is pressed down. At this time, the pressing plate 602 drives the stop block 503 to rotate around the axis of the rotating rod 502, so that the stop block 503 is separated from the inclined surface 504. At this time, the restriction on the wing nut 105 is released, and the wing nut 105 is rotated in the opposite direction until the wing nut 105 is rotated to the appropriate position.

[0028] The indicating mechanism includes a fixed block 401 fixedly connected to the top of the baffle 102, and a plurality of scale blocks 402 distributed in an array are fixedly connected to the top of the fixed block 401. An indicating block 403 is fixedly connected to the side wall of the L-shaped stop bar 202. When the L-shaped stop bar 202 moves, it drives the indicating block 403 to move. By observing the indicating block 403 and the corresponding scale block 402, the preset tightening force of the wing nut 105 can be intuitively displayed, preventing the operator from having difficulty controlling the tightening force and causing the nut to be too tight or too loose.

[0029] Working principle: During operation, firstly, the lithium-ion battery is placed on the base plate 101. Then, each baffle 102 is manually adjusted to frame the lithium-ion battery. Next, the knob 303 is rotated to separate the second threaded rod 302 from the baffle 102 and release its fastening. Then, the L-shaped stop lever 202 is moved. When the L-shaped stop lever 202 moves, it drives the indicator block 403 to move. When the indicator block 403 is aligned with the appropriate scale block 402, the movement of the L-shaped stop lever 202 is stopped and the knob 303 is rotated in the opposite direction to make the second threaded rod 302 contact the baffle 102 and fasten it again.

[0030] When the second threaded rod 302 is tightened again with the baffle 102, the wing nut 105 is rotated. At this time, the wing nut 105 drives the second retaining ring 8 to move closer to the first retaining ring 7. Under the action of the second retaining ring 8, the spring 9 begins to be compressed. When the wing nut 105 rotates, the inclined block 501 contacts the stop block 503. At this time, the stop block 503 slides on the inclined surface 504 and rotates at a small angle around the axis of the rotating rod 502. At this time, the torsion spring 505 twists, and the pressing plate 602 separates from the fixed rod 601. When the stop block 503 passes the inclined surface 504, the stop block 503 returns to its original position under the action of the torsion spring 505 and contacts the next inclined surface 504. At this time, the pressing plate 602 contacts and abuts against the fixed rod 601 again.

[0031] When the second retaining ring 8 contacts the L-shaped retaining lever 202, the rotation of the wing nut 105 stops. At this time, the magnitude of the compression force of the spring 9 is the magnitude of the tightening force between the baffles 102. Under the action of the stop block 503 and the inclined block 501, the wing nut 105 is restricted from rotating in the opposite direction, thus completing the locking of the wing nut 105.

[0032] When it is necessary to rotate the wing nut 105 in the reverse direction, press down on the pressing plate 602. At this time, the pressing plate 602 drives the stop block 503 to rotate around the axis of the rotating rod 502, so that the stop block 503 separates from the inclined surface 504. At this time, the restriction on the wing nut 105 is released, and the wing nut 105 is rotated in the reverse direction until the wing nut 105 is rotated to the appropriate position.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fixture for assembling lithium-ion batteries, comprising a base plate (101) and four arrayed baffles (102) disposed on the base plate (101), wherein the sidewalls of the baffles (102) are provided with through slots (104), the end faces of the baffles (102) are fixedly connected to a first threaded rod (103), and the sidewalls of the first threaded rod (103) are threadedly connected to a wing nut (105), the first threaded rod (103) being inserted into the slots (104) of adjacent baffles (102), characterized in that: A spring mechanism is provided between the wing nut (105) and the baffle (102), and the spring mechanism is used to provide spring force to the baffle (102); The elastic mechanism includes a first retaining ring (7) and a second retaining ring (8) sleeved on the side wall of the first threaded rod (103). The first retaining ring (7) and the second retaining ring (8) are connected by a spring (9). A first limiting mechanism is provided between the second retaining ring (8) and the baffle (102), and the first limiting mechanism is used to limit the second retaining ring (8).

2. The fixture for assembling a lithium-ion battery according to claim 1, characterized in that: The first limiting mechanism includes a limiting frame (201) fixedly connected to the top of the baffle (102), an L-shaped stop bar (202) slidably connected inside the limiting frame (201), a fastening mechanism between the L-shaped stop bar (202) and the baffle (102), an indicating mechanism between the L-shaped stop bar (202) and the baffle (102), and a second limiting mechanism between the L-shaped stop bar (202) and the wing nut (105).

3. The fixture for assembling a lithium-ion battery according to claim 2, characterized in that: The fastening mechanism includes a mounting block (301) fixedly connected to the end of the L-shaped stop bar (202), and a second threaded rod (302) is threadedly connected to the top of the mounting block (301). A knob (303) is fixedly connected to the top of the second threaded rod (302), and the second threaded rod (302) abuts against and is fastened to the baffle (102).

4. A fixture for assembling lithium-ion batteries according to claim 2, characterized in that: The second limiting mechanism includes an inclined block (501) fixedly sleeved on the side wall of the wing nut (105), and the side wall of the inclined block (501) is provided with a plurality of arrayed inclined surfaces (504). The side wall of the L-shaped stop bar (202) is rotatably connected to a rotating rod (502), and the side wall of the rotating rod (502) is fixedly sleeved with a stop block (503). The side wall of the rotating rod (502) is sleeved with a torsion spring (505), and the two ends of the torsion spring (505) are respectively fixed to the L-shaped stop bar (202) and the stop block (503). A pressing mechanism is provided between the stop block (503) and the L-shaped stop bar (202).

5. A fixture for assembling lithium-ion batteries according to claim 4, characterized in that: The pressing mechanism includes a fixed rod (601) fixedly connected to the side wall of the L-shaped stop bar (202), and a pressing plate (602) fixedly connected to the side wall of the stop block (503), and the pressing plate (602) abuts against the fixed rod (601).

6. A fixture for assembling lithium-ion batteries according to claim 2, characterized in that: The indicating mechanism includes a fixed block (401) fixedly connected to the top of the baffle (102), and a plurality of scale blocks (402) arranged in an array are fixedly connected to the top of the fixed block (401), and an indicating block (403) is fixedly connected to the side wall of the L-shaped lever (202).

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