Clamping tool for lithium battery detection

Abstract

The utility model belongs to the field of lithium battery detection, specifically speaking a kind of lithium battery detection is clamped tool, including base, the side fixedly connected with motor of base, motor output end extends to the inside of base and is fixedly connected with two-way screw rod, two-way screw rod is rotatably connected with base;The utility model provides a kind of clamped tool for lithium battery detection, by motor control two side plates mutually close, can be to the lithium battery clamping in middle, make lithium battery fixed on base to facilitate detection, when two side plates mutually close simultaneously, drive two second clamps mutually close, by the cooperation of second clamping plate and connecting shaft, make two first rack mutually far away, further make two second rack mutually close, drive two first clamps mutually close, thus in two second clamps to the lithium battery two sides clamping simultaneously, two first clamps to the other two sides clamping of lithium battery, make the four around of lithium battery be clamped fixed, avoid lithium battery to meet from side collision and move.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery testing, specifically a clamping fixture for lithium battery testing. Background Technology

[0002] Lithium batteries are widely used due to their high efficiency, energy saving and environmental protection properties. The main shapes of lithium batteries are square and cylindrical. After the lithium battery is produced, its voltage and internal resistance need to be tested by a testing device to ensure the quality of the lithium battery product. During the testing, clamping fixtures are needed to hold the lithium battery.

[0003] In existing technologies, lithium battery clamping fixtures typically use clamps on both sides to hold and fix the lithium battery. However, such clamping structures are not stable. During the lithium battery testing process, if the lithium battery is hit from the side, it is very easy for the lithium battery to move on the clamping fixture, which not only poses a risk of falling off, but also affects the testing of the testing device.

[0004] Therefore, this utility model provides a clamping fixture for lithium battery testing. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, the clamping fixtures for lithium batteries typically use clamping plates on both sides to hold and fix the lithium battery. However, such clamping structures are not stable. During the lithium battery testing process, if the lithium battery is hit from the side, it is very easy for the lithium battery to move on the clamping fixture, which not only poses a risk of falling off, but also affects the detection of the testing device. This utility model proposes a clamping fixture for lithium battery testing.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The clamping fixture for lithium battery testing of this utility model includes a base, a motor is fixedly connected to one side of the base, the output end of the motor extends into the interior of the base and is fixedly connected to a bidirectional lead screw, the bidirectional lead screw is rotatably connected to the base, and two sliders are connected to the outer wall of the bidirectional lead screw through a lead screw and nut pair. The two sliders are symmetrically arranged and are slidably connected to the base. A side plate is fixedly connected to the top of each of the two sliders, and the two side plates are slidably connected to the base. A horizontal plate is fixedly connected to both sides of each side plate.

[0007] Preferably, a sliding shaft is slidably connected to the inner wall of the horizontal plate, and a first clamping plate is fixedly connected to one end of the sliding shaft. A linkage component is provided inside the side plate.

[0008] Preferably, the linkage component includes two first racks, which are symmetrically arranged inside the side plate and slidably connected to the side plate. The outer walls of the two first racks are rotatably connected to connecting shafts. One end of the two connecting shafts is rotatably connected to a second clamping plate. An installation groove is provided between the side plate and the cross plate. A first rotating shaft is fixedly connected to the inner wall of the installation groove. A gear is rotatably connected to the outer wall of the first rotating shaft. The first rack is meshed with the gear. A second rack is fixedly connected to one side of the first clamping plate. The second rack is slidably connected to the cross plate and meshes with the gear.

[0009] Preferably, the outer wall of the side plate has two symmetrically formed slots, and the connecting shaft fits into the inner wall of the slots.

[0010] Preferably, the first rack and the second rack are parallel to each other, and the gear is located between the first rack and the second rack.

[0011] Preferably, a plurality of second rotating shafts are fixedly connected at equal intervals inside the first clamping plate, and pulleys are rotatably connected to the outer walls of the plurality of second rotating shafts.

[0012] Preferably, a limiting block is fixedly connected to the other end of the slide shaft, and a spring is sleeved on the outer wall of the slide shaft. One end of the spring is fixedly connected to the cross plate, and the other end of the spring is fixedly connected to the limiting block.

[0013] Preferably, a rubber pad is fixedly connected to the outer wall of the second clamping plate.

[0014] The beneficial effects of this utility model are as follows:

[0015] The present invention discloses a clamping fixture for testing lithium batteries. A motor controls two side plates to move closer together, clamping and fixing the lithium battery in the middle, thus securing it to the base for easy testing. Simultaneously, the two side plates move closer together, causing two second clamping plates to move closer as well. Through the cooperation of the second clamping plates and the connecting shaft, the two first racks move away from each other, and then move closer together, causing the two first clamping plates to move closer together. Thus, while the two second clamping plates clamp the lithium battery on both sides, the two first clamping plates clamp the other two sides, ensuring the lithium battery is clamped and fixed from all sides, preventing movement due to side impacts. The included pulleys allow the first clamping plates to slide on the outside of the lithium battery when clamping the other two sides, further securing the lithium battery from all sides. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the base and side plate of this utility model in use together;

[0018] Figure 2 This is an exploded view of the base and side plate of this utility model in use.

[0019] Figure 3 This is a cross-sectional view of the slider and side plate of this utility model in use;

[0020] Figure 4 This is a perspective view of the second clamping plate and the side plate of this utility model in use.

[0021] Figure 5 This is a utility model Figure 4 Enlarged view of point A in the middle;

[0022] In the diagram: 1. Base; 2. Motor; 3. Two-way lead screw; 4. Slider; 5. Side plate; 6. Horizontal plate; 7. Sliding shaft; 8. Limiting block; 9. Spring; 10. First clamping plate; 11. First rack; 12. Connecting shaft; 13. Second clamping plate; 14. Rubber pad; 15. Hollow groove; 16. Mounting groove; 17. First rotating shaft; 18. Gear; 19. Second rack; 20. Second rotating shaft; 21. Pulley. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 5 As shown, this utility model provides a technical solution: a clamping fixture for lithium battery testing, including a base 1. A motor 2 is fixedly connected to one side of the base 1. The output end of the motor 2 extends into the interior of the base 1 and is fixedly connected to a bidirectional lead screw 3. The bidirectional lead screw 3 is rotatably connected to the base 1. Two sliders 4 are connected to the outer wall of the bidirectional lead screw 3 through a lead screw and nut pair. The two sliders 4 are symmetrically arranged and are slidably connected to the base 1. A side plate 5 is fixedly connected to the top of each of the two sliders 4. Both side plates 5 are slidably connected to the base 1. A horizontal plate 6 is fixedly connected to both sides of the side plate 5.

[0025] With the above technical solution, the lithium battery is placed on the base 1 and located between the two side plates 5. The motor 2 is started, which drives the bidirectional lead screw 3 to rotate, causing the two sliders 4 to move closer to each other, which in turn causes the two side plates 5 to move closer to each other. The two side plates 5 moving closer to each other can clamp and fix the lithium battery in the middle, making the lithium battery fixed on the base 1 for easy inspection. The horizontal plates 6 on both sides of the side plates 5 can protect the other two sides of the lithium battery, preventing the lithium battery from moving due to collisions from the sides.

[0026] Specifically, a sliding shaft 7 is slidably connected to the inner wall of the horizontal plate 6, and a first clamping plate 10 is fixedly connected to one end of the sliding shaft 7. A linkage assembly is provided inside the side plate 5. The linkage assembly includes two first racks 11, which are symmetrically arranged inside the side plate 5 and slidably connected to it. A connecting shaft 12 is rotatably connected to the outer wall of each of the two first racks 11. A second clamping plate 13 is rotatably connected to one end of each connecting shaft 12. An installation groove 16 is provided between the side plate 5 and the horizontal plate 6. A first rotating shaft 17 is fixedly connected to the inner wall of the installation groove 16. A gear 18 is rotatably connected to the outer wall of the first rotating shaft 17. Rack 11 meshes with gear 18. A second rack 19 is fixedly connected to one side of the first clamping plate 10. The second rack 19 is slidably connected to the horizontal plate 6 and meshes with gear 18. A limit block 8 is fixedly connected to the other end of the sliding shaft 7. A spring 9 is sleeved on the outer wall of the sliding shaft 7. One end of the spring 9 is fixedly connected to the horizontal plate 6, and the other end of the spring 9 is fixedly connected to the limit block 8. Two slots 15 are symmetrically opened on the outer wall of the side plate 5. The connecting shaft 12 fits against the inner wall of the slot 15. The first rack 11 and the second rack 19 are parallel to each other, and gear 18 is located between the first rack 11 and the second rack 19.

[0027] Through the above technical solution, when the two side plates 5 approach each other, they drive the two second clamping plates 13 to approach each other. When the two second clamping plates 13 press against both sides of the lithium battery, the two side plates 5 continue to be controlled to approach each other. Thus, under the push of the second clamping plates 13, in conjunction with the connecting shaft 12, the two first racks 11 are pushed away from each other. While the two first racks 11 move, they drive the two gears 18 to rotate, causing the two second racks 19 to approach each other, which in turn drives the two first clamping plates 10 to approach each other. Thus, while the two second clamping plates 13 clamp the two sides of the lithium battery, the two first clamping plates 10 clamp the other two sides of the lithium battery, so that the lithium battery is clamped and fixed on all sides, preventing the lithium battery from moving due to collisions from the sides. While the two first clamping plates 10 approach each other, they pull the two sliding shafts 7 to move and press the two springs 9. After the lithium battery is detected, the motor 2 controls the two sliders 4 to move away from each other. Under the action of the two springs 9, the two first clamping plates 10 are reset. Similarly, the two second clamping plates 13 are reset, making it easier to clamp the next lithium battery.

[0028] Specifically, a rubber pad 14 is fixedly connected to the outer wall of the second clamping plate 13.

[0029] Through the above technical solution, the rubber pad 14 not only increases the friction between the second clamping plate 13 and the lithium battery, thus improving the clamping effect, but also prevents the second clamping plate 13 from causing wear on the surface of the lithium battery.

[0030] Specifically, a number of second rotating shafts 20 are fixedly connected at equal intervals inside the first clamping plate 10, and pulleys 21 are rotatably connected to the outer walls of the number of second rotating shafts 20.

[0031] With the above technical solution, the pulley 21 allows the first clamping plates 10 to slide on the outside of the lithium battery when they clamp the other two sides of the lithium battery, thus further securing the lithium battery around its perimeter.

[0032] In use, the lithium battery is placed on the base 1 between the two side plates 5. The motor 2 is started, driving the bidirectional lead screw 3 to rotate, causing the two sliders 4 to move closer together. This, in turn, moves the two side plates 5 closer together, clamping and fixing the lithium battery in the middle, securing it to the base 1 for easy inspection. The horizontal plates 6 on both sides of the side plates 5 provide protection for the other two sides of the lithium battery. Simultaneously, the two side plates 5 move closer together, causing the two second clamping plates 13 to move closer together. When the two second clamping plates 13 press against the sides of the lithium battery, they clamp the battery. The rubber pads 14 not only increase the friction between the second clamping plates 13 and the lithium battery, improving the clamping effect, but also prevent the second clamping plates 13 from causing wear on the surface of the lithium battery. The two side plates 5 are then moved closer together. Under the push of the second clamping plates 13, and in conjunction with the connecting shaft 12, the two first racks 11 are pushed further apart. As the two first racks 11 move, they drive the two gears 18 to rotate, causing the two second racks 19 to move closer together, which in turn drives the two first clamping plates 10 to move closer together. Thus, while the two second clamping plates 13 clamp the lithium battery on both sides, the two first clamping plates 10 clamp the lithium battery on the other two sides, ensuring that the lithium battery is clamped and fixed on all sides, preventing it from moving due to collisions from the sides. Through the pulleys 21, when the two first clamping plates 10 clamp the other two sides of the lithium battery, it is easy for the first clamping plates 10 to slide on the outside of the lithium battery, which can further tighten the lithium battery on all sides. As the two first clamping plates 10 move closer together, they pull the two sliding shafts 7 to move, compressing the two springs 9. After the lithium battery is detected, the motor 2 controls the two sliders 4 to move away from each other. Under the action of the two springs 9, the two first clamping plates 10 are reset, and the two second clamping plates 13 are reset in the same way, making it easier to clamp the next lithium battery.

[0033] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0035] 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 illustrative of the principles of this 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 clamping fixture for testing lithium batteries, characterized in that, The device includes a base, on one side of which a motor is fixedly connected. The output end of the motor extends into the interior of the base and is fixedly connected to a bidirectional lead screw. The bidirectional lead screw is rotatably connected to the base. The outer wall of the bidirectional lead screw is connected to two sliders via a lead screw and nut pair. The two sliders are symmetrically arranged and slidably connected to the base. The top of each slider is fixedly connected to a side plate, and both side plates are slidably connected to the base. Horizontal plates are fixedly connected to both sides of each side plate.

2. The clamping fixture for lithium battery testing according to claim 1, characterized in that, The inner wall of the horizontal plate is slidably connected to a sliding shaft, one end of which is fixedly connected to a first clamping plate, and a linkage component is provided inside the side plate.

3. The clamping fixture for lithium battery testing according to claim 2, characterized in that, The linkage assembly includes two first racks, which are symmetrically arranged inside the side plate and slidably connected to it. A connecting shaft is rotatably connected to the outer wall of each of the two first racks. One end of each connecting shaft is rotatably connected to a second clamping plate. An installation groove is provided between the side plate and the cross plate. A first rotating shaft is fixedly connected to the inner wall of the installation groove. A gear is rotatably connected to the outer wall of the first rotating shaft. The first rack meshes with the gear. A second rack is fixedly connected to one side of the first clamping plate. The second rack is slidably connected to the cross plate and meshes with the gear.

4. The clamping fixture for lithium battery testing according to claim 3, characterized in that, The outer wall of the side plate has two symmetrical slots, and the connecting shaft fits into the inner wall of the slots.

5. The clamping fixture for lithium battery testing according to claim 3, characterized in that, The first rack and the second rack are parallel to each other, and the gear is located between the first rack and the second rack.

6. The clamping fixture for lithium battery testing according to claim 2, characterized in that, The first clamp plate has several second rotating shafts fixedly connected at equal intervals inside, and the outer walls of the several second rotating shafts are rotatably connected to pulleys.

7. The clamping fixture for lithium battery testing according to claim 2, characterized in that, The other end of the slide shaft is fixedly connected to a limit block, and a spring is sleeved on the outer wall of the slide shaft. One end of the spring is fixedly connected to the horizontal plate, and the other end of the spring is fixedly connected to the limit block.

8. The clamping fixture for lithium battery testing according to claim 3, characterized in that, A rubber pad is fixedly connected to the outer wall of the second clamping plate.

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