Lithium metal sheet clamping device

Abstract

The utility model provides a metal lithium sheet clamping device which comprises a first tweezer handle, a second tweezer handle, a first clamping head, a second clamping head, an elastic sheet and a limiting assembly, and one end of the first tweezer handle is connected with one end of the second tweezer handle; the first chuck is arranged at the other end of the first tweezers handle and is rotationally connected with the first tweezers handle; the second chuck is arranged at the other end of the second forceps handle and is rotationally connected with the second forceps handle; the elastic sheet is arranged on the first tweezers handle and the first chuck and is positioned on one side far away from the second tweezers handle; the limiting assembly can limit the second clamping head to rotate outwards, and the limiting assembly is arranged on the second tweezers handle and is far away from the first tweezers handle. According to the clamping device, the first clamping head and the second clamping head which can rotate are arranged, so that the first clamping head and the second clamping head can form included angles with the two tweezers handles, a metal lithium sheet can be conveniently clamped from a container, and the metal lithium sheet is prevented from being scratched or bent in the clamping process.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to a clamping device for metallic lithium sheets. Background Art

[0002] During the assembly process of lithium button batteries, metallic lithium sheets are often used. Metallic lithium sheets are soft and easy to bend silver-white thin sheets, and it is extremely easy for lithium sheets to adhere to each other; metallic lithium sheets have a thin coin-shaped structure and cannot stand upright, and are generally in a lying state.

[0003] At present, lithium sheets are generally scattered and concentrated in a container, and are picked up and used with tweezers. This will easily cause scratches on the surface of metallic lithium sheets or cause the metallic lithium sheets to bend during the picking process, and the damage or bending of metallic lithium sheets will directly lead to poor button battery data.

[0004] In view of this, the inventor has specifically designed a clamping device for metallic lithium sheets, and this case is thus produced. Summary of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a clamping device for metallic lithium sheets. By providing a rotatable first chuck and a second chuck, the first chuck and the second chuck can form an angle with the two tweezer handles, which is convenient for picking up metallic lithium sheets from a container, and overcomes the damage to metallic lithium sheets during the current picking process.

[0006] According to the clamping device for metallic lithium sheets provided by the utility model, it includes:

[0007] A first tweezer handle and a second tweezer handle, one ends of the first tweezer handle and the second tweezer handle are connected to each other;

[0008] A first chuck, the first chuck is arranged at the other end of the first tweezer handle and is rotatably connected to the first tweezer handle;

[0009] A second chuck, the second chuck is arranged at the other end of the second tweezer handle and is rotatably connected to the second tweezer handle;

[0010] A shrapnel, the shrapnel is arranged on the first tweezer handle and the first chuck and is located on the side far from the second tweezer handle;

[0011] A limiting component, the limiting component is arranged on the second tweezer handle and is far from the first tweezer handle;

[0012] The limiting component includes a limiting block that slides on the second tweezer handle. When the limiting block straddles the second tweezer handle and the second chuck, it restricts the second chuck from rotating outwards. When the limiting block is removed or slides onto the second tweezer handle, under the action of an external force, the second chuck rotates outwards.

[0013] The clamping device of the present utility model is provided with a rotatable first chuck and a second chuck, so that the first chuck and the second chuck can form an angle with the two tweezer handles, which is convenient for clamping lithium metal flakes from a container, preventing scratching the lithium metal flakes during the clamping process or preventing the lithium metal flakes from bending during the clamping process.

[0014] In some embodiments of the present utility model, the first chuck and the second chuck are set according to the shape of the product to be clamped. For example, when it is necessary to clamp a circular lithium flake, the clamping parts of the first chuck and the second chuck are circular.

[0015] In some embodiments of the present utility model, the upper part of the elastic piece is arranged on the first tweezer handle and is located on the side away from the second tweezer handle, and the lower part of the elastic piece is arranged on the first chuck.

[0016] In some embodiments of the present utility model, the first tweezer handle is arranged on the first chuck through a first rotating shaft. The elastic piece includes a shaft sleeve part sleeved on the first rotating shaft, a first connecting part and a second connecting part connected to the shaft sleeve part, wherein the first connecting part is arranged on the first tweezer handle, and the second connecting part is arranged on the first chuck.

[0017] In some embodiments of the present utility model, the second tweezer handle is arranged on the second chuck through a second rotating shaft.

[0018] In some embodiments of the present utility model, the limiting component further includes a limiting mechanism for limiting the sliding of the limiting block.

[0019] In some embodiments of the present utility model, a sliding rail for cooperating with the limiting block to slide is arranged on the side of the second tweezer handle away from the first tweezer handle.

[0020] In some embodiments of the present utility model, an installation groove for installing the limiting mechanism is arranged on the sliding rail. The limiting mechanism includes a spring with one end arranged at the bottom of the installation groove and a limiting seat arranged at the other end of the spring. A clamping groove for the limiting seat to be embedded is arranged at the bottom of the limiting block.

[0021] In some embodiments of the present utility model, a resistance layer is further arranged on the end face of the limiting seat away from the spring.

[0022] In some embodiments of the present utility model, the limiting component further includes a key arranged on the limiting block and slidably connected to the limiting block. The key corresponds to the clamping groove and is used for ejecting the limiting seat located in the clamping groove.

[0023] In some embodiments of the present utility model, the key is located in the clamping groove below and extends to the end face of the limiting block above. A limiting cap is further arranged on the top of the key.

[0024] In some embodiments of the present utility model, a connection hole communicating with the card slot and having an inner diameter smaller than that of the card slot is provided on the limit block. The button is slidably connected to the connection hole, and the top thereof extends out of the connection hole and is connected to a limit cap. The limit cap is locked to the top of the button by a screw. Press the limit cap against the button so that the resistance layer or the limit seat at the bottom of the button is just pushed out of the card slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of the present utility model. The illustrative embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model.

[0026] Wherein:

[0027] Figure 1 is a schematic structural view of the clamping device of the present utility model;

[0028] Figure 2 is the present utility model Figure 1 partial enlarged view (state one of the clamping device);

[0029] Figure 3 is a partial cross-sectional view of the clamping device of the present utility model Figure 1 ;

[0030] Figure 4 is a partial structural schematic view of the clamping device of the present utility model Figure 1 (state two of the clamping device);

[0031] Figure 5 is a partial structural schematic view of the clamping device of the present utility model Figure 2 (state two of the clamping device);

[0032] Figure 6 is a partial cross-sectional view of the clamping device of the present utility model Figure 2 ;

[0033] Figure 7 is a partial cross-sectional view of another embodiment of the clamping device of the present utility model.

[0034] Reference Numeral Description:

[0035] 10. First forceps handle; 20. Second forceps handle; 21. Slide rail; 211. Installation groove; 30. First chuck; 40. Second chuck; 50. Elastic piece; 51. Sleeve portion; 52. First connecting portion; 53. Second connecting portion; 60. Limit assembly; 61. Limit block; 611. Card slot; 62. Limit mechanism; 621. Spring; 622. Limit seat; 6221. Resistance layer; 63. Button; 631. Limit cap; 70. First rotating shaft; 80. Second rotating shaft. Detailed implementation mode

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0037] Please refer to Figures 1 to 7 , which is a metal lithium sheet clamping device as the best embodiment of the present utility model, including a first tweezer handle 10, a second tweezer handle 20, a first chuck 30, a second chuck 40, a spring piece 50, and a limiting component 60. One end of the first tweezer handle 10 and the second tweezer handle 20 are connected to each other; the first chuck 30 is arranged at the other end of the first tweezer handle 10 and is rotatably connected to the first tweezer handle 10; the second chuck 40 is arranged at the other end of the second tweezer handle 20 and is rotatably connected to the second tweezer handle 20; the spring piece 50 is arranged on the first tweezer handle 10 and the first chuck 30 and is located on the side away from the second tweezer handle 20; the limiting component 60 can limit the second chuck 40 from rotating outwards, and it is arranged on the second tweezer handle 20 and away from the first tweezer handle 10; therefore, the spring piece 50 and the limiting component 60 are respectively located on both sides of the first tweezer handle 10 and the second tweezer handle 20; the limiting component 60 includes a limiting block 61 that slides on the second tweezer handle 20. When the limiting block 61 straddles the second tweezer handle 20 and the second chuck 40, it limits the second chuck 40 from rotating outwards. When the limiting block 61 is removed or slides onto the second tweezer handle 20, under the action of an external force, the second chuck 40 rotates outwards. The clamping device of the present utility model is provided with rotatable first and second chucks 30 and 40, so that the first and second chucks 30 and 40 can form an angle with the two tweezer handles, which is convenient for clamping the metal lithium sheet from the container, preventing the metal lithium sheet from being scratched during the clamping process or preventing the metal lithium sheet from bending during the clamping process. And when the second chuck 40 is limited from rotating outwards by using the limiting block 61, the clamping device can be used as a conventional tweezer.

[0038] The first chuck 30 and the second chuck 40 are set according to the shape of the product to be clamped. For example, when a circular lithium sheet needs to be clamped, the clamping parts of the first chuck 30 and the second chuck 40 are circular, and the clamping areas of the first chuck 30 and the second chuck 40 are larger than the area of the metal lithium sheet, so that when the first chuck 30 and the second chuck 40 clamp the metal lithium sheet, they completely cover the metal lithium sheet, so as to better protect the metal lithium sheet. The end faces of the first chuck 30 and the second chuck 40 that are far away from each other are provided with inclined surfaces to better shovel up the metal lithium sheet, and the end faces of the first chuck 30 and the second chuck 40 that are close to each other are also provided with inclined surfaces to facilitate the product to enter between the first chuck 30 and the second chuck 40.

[0039] The upper part of the elastic piece 50 is arranged on the first forceps handle 10 and on the side away from the second forceps handle 20, and the lower part is arranged on the first chuck 30. Under the action of the elastic piece 50, the first chuck 30 is flush with the first forceps handle 10. The first chuck 30 rotates under the action of an external force. At this time, an angle greater than 0 is formed between the first chuck 30 and the first forceps handle 10. When the external force is removed, it resets under the action of the elastic piece 50.

[0040] The first forceps handle 10 is arranged on the first chuck 30 through the first rotating shaft 70. Specifically, a first through hole for the first rotating shaft 70 to pass through is arranged on the first forceps handle 10, and a second through hole or groove for connecting with the first rotating shaft 70 is arranged on the first chuck 30. The rotational connection of the first chuck 30 can be realized through the first rotating shaft 70. The elastic piece 50 in this embodiment can directly adopt a torsion spring or the structure shown in the figure, but the principle is the same as that of the torsion spring. Specifically, the elastic piece 50 includes a shaft sleeve portion 51 sleeved on the first rotating shaft 70, a first connecting portion 52 and a second connecting portion 53 connected to the shaft sleeve portion 51. The first connecting portion 52 is arranged on the first forceps handle 10, and the second connecting portion 53 is arranged on the first chuck 30. Using the elastic piece 50 makes the first chuck 30 and the first forceps handle 10 remain Figure 2 flush as shown in the figure. At this time, the clamping device can be used as an ordinary pair of forceps to directly pick up the lithium metal sheet.

[0041] The second forceps handle 20 is arranged on the second chuck 40 through the second rotating shaft 80, and the structure and installation method are similar to those of the first rotating shaft 70.

[0042] The limiting component 60 further includes a limiting mechanism 62 for limiting the sliding of the limiting block 61; a sliding rail 21 for cooperating with the limiting block 61 to slide is arranged on the side of the second forceps handle 20 away from the first forceps handle 10. The sliding rail 21 can be fixedly arranged on the second forceps handle 20. The sliding rail 21 has a T-shaped structure, and a sliding groove for cooperating with the sliding rail 21 is arranged on the limiting block 61.

[0043] An installation groove 211 for installing the limiting mechanism 62 is arranged on the sliding rail 21. The limiting mechanism 62 includes a spring 621 with one end arranged at the bottom of the installation groove 211 and a limiting seat 622 arranged at the other end of the spring 621. A clamping groove 611 for the limiting seat 622 to be embedded is arranged at the bottom of the limiting block 61. When the central axes of the clamping groove 611 and the installation groove 211 coincide, part of the limiting seat 622 will be embedded into the clamping groove 611 under the action of the spring 621. At this time, the limiting block 61 straddles the second forceps handle 20 and the second chuck 40, and the outward rotation of the second chuck 40 can be restricted. When it is not necessary to restrict the rotation of the second chuck 40, the limiting seat 622 is pressed into the clamping groove 611, and the limiting block 61 can be slid, so that the limiting block 61 is completely located on the sliding rail 21 of the second forceps handle 20. At the same time, due to the action of the spring 621, the upper end surface of the limiting seat 622 only abuts against the limiting block 61, which can prevent the limiting block 61 from sliding by itself.

[0044] For details, please refer to Figure 7 , a resistance layer 6221 is further provided on the end face of the limit seat 622 away from the spring 621. Through the resistance layer 6221, the movement of the limit block 61 can be better prevented, and the limit block 61 can be manually slid.

[0045] For details, please refer to Figure 3 , the limit assembly 60 further includes a button 63 provided on the limit block 61 and slidably connected to the limit block 61. The button 63 is provided corresponding to the card slot 611 for ejecting the limit seat 622 located in the card slot 611, and after ejection, the limit seat 622 is completely located in the installation slot 211. At this time, the limit block 61 can slide, and manual operation can be used during sliding. The button 63 is located below in the card slot 611 and extends above to the end face of the limit block 61. In order to better eject the limit seat 622 just right, a limit cap 631 is further provided on the top of the button 63. A connection hole communicating with the card slot 611 and having an inner diameter smaller than that of the card slot 611 is provided on the limit block 61. The button 63 is slidably connected to the connection hole, and the top extends out of the connection hole and is connected to the limit cap 631. The limit cap 631 is locked to the top of the button 63 by a screw. Press the limit cap 631 on the button 63 so that the bottom of the button 63 just ejects the resistance layer 6221 or the limit seat 622 out of the card slot 611.

[0046] The working principle of the clamping device of the present utility model is as follows:

[0047] When it is necessary to clamp a lithium metal sheet on a horizontal tabletop or a lithium metal sheet in a container at a relatively high position, slide the limit block 61 and make the upper part of the limit seat 622 embed in the card slot 611, which can limit the rotation of the second chuck 40. During clamping, no external force needs to be applied, and the first chuck 30 can be used to shovel up and clamp.

[0048] When it is necessary to clamp a lithium metal sheet in a container at a low position, especially when there is not much lithium metal sheet left, or when it is necessary to install the clamped lithium metal sheet into a relatively narrow position, press the button 63, the resistance layer 6221 or the limit seat 622 is ejected out of the card slot 611, manually slide the limit block 61, and after sliding in place, the end face of the resistance layer 6221 or the end face of the limit seat 622 abuts against the limit block 61 to prevent the limit block 61 from sliding by itself. At this time, the second chuck 40 can rotate outwards, apply pressure to the first chuck 30, and drive the second chuck 40 to rotate. Due to the action of the inclined surface, the first chuck 30 can shovel up the lithium metal sheet, or apply pressure to the first chuck 30 to facilitate better placing the lithium metal sheet in a relatively narrow space.

[0049] In summary, the clamping device of the present utility model is provided with a rotatable first chuck and a second chuck, so that the first chuck and the second chuck can form an angle with the two tweezer handles, which is convenient for clamping lithium metal flakes from a container, preventing the lithium metal flakes from being scratched during the clamping process or preventing the lithium metal flakes from bending during the clamping process. Moreover, when the second chuck is restricted from rotating outwards by the limiting block, the clamping device can be used as a conventional tweezer.

[0050] The present utility model has been described exemplarily above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above-mentioned manner. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A metal lithium sheet clamping device, characterized in that: include: A first tweezers handle and a second tweezers handle, wherein one end of the first tweezers handle and one end of the second tweezers handle are connected to each other; A first chuck, which is disposed at the other end of the first tweezers handle and is rotatably connected to the first tweezers handle; A second chuck, the second chuck is disposed at the other end of the second tweezers handle and is rotatably connected to the second tweezers handle; A spring sheet, which is disposed on the first tweezers handle and the first clamp and is located away from the second tweezers handle; A limiting component, wherein the limiting component is arranged on the second tweezers handle and is away from the first tweezers handle; The limiting assembly includes a limiting block that slides with the second tweezers handle. When the limiting block spans the second tweezers handle and the second chuck, it limits the second chuck from rotating outward. When the limiting block is removed or slid onto the second tweezers handle, the second chuck rotates outward under the action of external force.

2. The metal lithium sheet clamping device according to claim 1, characterized in that: The first tweezers handle is arranged on the first clamping head via a first rotating shaft.

3. The metal lithium sheet clamping device according to claim 2, characterized in that: The spring piece includes a sleeve portion sleeved on the first rotating shaft, a first connecting portion and a second connecting portion connected to the sleeve portion, wherein the first connecting portion is arranged on the first tweezers handle, and the second connecting portion is arranged on the first clamp.

4. The metal lithium sheet clamping device according to claim 1, characterized in that: The second tweezers handle is arranged on the second clamping head via a second rotating shaft.

5. The metal lithium sheet clamping device according to claim 1, characterized in that: The limiting assembly also includes a limiting mechanism for limiting the sliding of the limiting block.

6. The metal lithium sheet clamping device according to claim 5, characterized in that: A slide rail for sliding in cooperation with the limiting block is disposed on a side of the second tweezers handle away from the first tweezers handle.

7. The metal lithium sheet clamping device according to claim 6, characterized in that: The slide rail is provided with an installation groove for installing a limiting mechanism, and the limiting mechanism comprises a spring with one end arranged at the bottom of the installation groove and a limiting seat arranged at the other end of the spring, and a slot for embedding the limiting seat is arranged at the bottom of the limiting block.

8. The metal lithium sheet clamping device according to claim 7, characterized in that: A resistance layer is also arranged on one end surface of the limiting seat away from the spring.

9. The metal lithium sheet clamping device according to claim 7, characterized in that: The limiting assembly also includes a button which is arranged on the limiting block and is slidably connected to the limiting block. The button is arranged corresponding to the card slot and is used to eject the limiting seat in the card slot.

10. The metal lithium sheet clamping device according to claim 9, characterized in that: The button is located in the card slot at the bottom and extends to the end surface of the limit block at the top. A limit cap is also arranged on the top of the button.

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