Clamping device

Abstract

The utility model provides a clamping device which comprises a driving assembly and a clamping assembly, the clamping assembly is connected with the driving assembly, the clamping assembly comprises a plurality of clamping units, a clamping space is formed between the multiple clamping units, and the driving assembly is configured to drive the multiple clamping units to move close to or away from each other so as to clamp an object to be clamped. Wherein each clamping unit comprises an adapting piece, a clamping finger and a first limiting piece, the adapting piece is connected with the driving assembly, the clamping finger of at least one clamping unit is slidably connected to the adapting piece in the moving direction of the clamping unit, and the first limiting piece is connected to at least one of the clamping finger and the adapting piece and can limit the moving freedom degree of the clamping finger deviating from the clamping space. According to the clamping device in the embodiment of the invention, reliable clamping of the single batteries with various sizes and specifications can be realized, and the compatibility is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a clamping device. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] In the battery manufacturing process, it is necessary to move battery cells and related components to achieve battery assembly. However, the current clamping device is difficult to reliably clamp battery cells of various specifications and models, and has low compatibility. Therefore, how to improve the compatibility and reliability of clamping has become an urgent problem to be solved. Utility Model Content

[0004] In view of the above problems, the present application provides a clamping device that can reliably clamp battery cells of various sizes and specifications, thereby improving compatibility.

[0005] In the first aspect, the present application provides a clamping device, including a driving component and a clamping component, wherein the clamping component is connected to the driving component, the clamping component includes a plurality of clamping units, a clamping space is formed between the plurality of clamping units, and the driving component is configured to drive the plurality of clamping units to move closer to or away from each other to clamp an object to be clamped. The clamping unit includes an adapter, a clamping finger, and a first limiter, wherein the adapter is connected to the driving component, the clamping finger of at least one clamping unit is slidably connected to the adapter along the moving direction of the clamping unit, and the first limiter is connected to at least one of the clamping finger and the adapter and can limit the freedom of movement of the clamping finger away from the clamping space.

[0006] In the embodiment of the present application, for battery cells of different sizes, the sliding clamping fingers can be used to achieve a slight change in the distance of the clamping fingers relative to the adapter, and the clamping fingers can be limited to a predetermined position of the adapter by a first limit member, thereby achieving reliable clamping of battery cells of various sizes and specifications, thereby improving compatibility.

[0007] In some embodiments, along the moving direction of the clamping unit, one of the clamping finger and the adapter is provided with a slide groove, and the other is provided with a slider matched with the slide groove, and the slider is embedded in the slide groove and matched with the slide groove. By moving the slider relative to the slide groove, the sliding connection between the clamping finger and the adapter is achieved, thereby improving the reliability and stability of the adjustment process.

[0008] In some embodiments, a convex portion is extended in the slide groove along the moving direction of the clamping unit, and a concave portion is provided on the sliding block corresponding to the convex portion. The convex portion cooperates with the concave portion to further improve the reliability and stability of the sliding process.

[0009] In some embodiments, the adapter includes an adapter portion and a blocking portion, the clamping finger is slidably connected to the adapter portion, and the blocking portion is connected to both ends of the adapter portion along the moving direction of the clamping unit and protrudes toward the clamping finger; along the moving direction of the clamping unit, the blocking portion is provided with a connecting hole, and the clamping finger is provided with a first threaded hole corresponding to the connecting hole, and the clamping unit also includes a screw, which is connected to the first threaded hole and its two ends are rotatably matched with the connecting hole.

[0010] In the embodiment of the present application, the position of the clamping fingers is adjusted by moving the clamping fingers through a spiral transmission and a slide groove mechanism, so that the opening width between the clamping fingers of the clamping device along the first direction can be adjusted within a certain range, so as to be suitable for reliable clamping of battery cells of various specifications and improve the compatibility of the clamping device.

[0011] In some embodiments, the distances between the screw rod and the two side walls of the slide groove are equal, thereby improving the stability of the adjustment process and reducing the risk of finger offset during the adjustment process.

[0012] In some embodiments, the slide groove is provided on one of the adapter and the clamping finger and penetrates through the end thereof along the moving direction of the clamping unit to form an opening, and the blocking portion at at least one end is detachably connected to the adapter and blocks the opening. That is, the clamping finger forms a modular design, and when the clamping finger needs to be replaced or maintained, the clamping finger can be removed from the adapter as a whole, reducing downtime and maintenance costs.

[0013] In some embodiments, a second threaded hole is provided through the clamping finger, and the first limiting member includes a set screw, which is connected to the second threaded hole and abuts against the adapter. By tightening the set screw, the clamping finger and the adapter can be relatively fixed by friction, thereby reducing the risk of loosening or displacement of the clamping finger during operation and improving the stability and reliability of the clamping device.

[0014] In some embodiments, the adapter is provided with scale markings extending along the moving direction of the clamping unit, and the clamping fingers are provided with indicating parts, which point to the scale markings to correspond to the initial positions of the clamping fingers on both sides relative to the adapter, thereby improving the adjustment efficiency and reducing the production cost of the battery.

[0015] In some embodiments, at least one clamping unit also includes a second limit member, which is arranged on the side of the adapter and / or the clamping finger facing the clamping space. The second limit member is protruding relative to the clamping surface of the clamping finger and is used to limit the depth of the object to be clamped into the clamping space, thereby reducing the risk of the clamping position exceeding a predetermined safety or working range during the process of clamping the battery cell and improving the reliability of clamping.

[0016] In some embodiments, the material of the clamping fingers of at least one clamping unit includes stainless steel or carbon steel, and / or the clamping fingers of at least one clamping unit include a clamping finger body and a protective layer, and the protective layer covers at least a portion of the surface of the clamping finger body, which can improve the strength, wear resistance and durability of the clamping fingers, so that the clamping fingers have good mechanical properties and increase the service life of the clamping device.

[0017] In some embodiments, at least one clamping unit further includes an elastic layer, which is connected to the clamping surface of the clamping fingers to reduce the risk of damage or falling off of the battery cell and improve the stability and reliability of the clamping device.

[0018] In some embodiments, an anti-skid groove is provided on one side of the elastic layer facing the clamping space, that is, by performing anti-skid treatment on the elastic layer, the risk of the battery cell falling off can be further reduced, thereby achieving reliable clamping of the battery cell.

[0019] In some embodiments, the clamping device also includes a detection member connected to at least one of the driving component and the clamping component, and the detection member is used to detect whether an object to be clamped is provided in the clamping space, so that when a battery cell is detected, the clamping unit can be driven by the driving component to achieve reliable clamping of the battery cell.

[0020] In some embodiments, the clamping device also includes a speed regulating valve, which is connected to the driving assembly and is used to adjust the moving speed of the clamping unit, which can not only improve the control accuracy and response speed, but also improve the smoothness and accuracy of the movement of the clamping unit.

[0021] According to the clamping device of the embodiment of the present application, it includes a driving assembly and a plurality of clamping units, a clamping space is formed between the plurality of clamping units, and the driving assembly is configured to drive the plurality of clamping units to move closer to or away from each other to clamp the battery cells. Among them, at least one clamping unit includes an adapter, a clamping finger and a first limiter, and the clamping finger is connected to the adapter by sliding along the moving direction of the clamping unit, so that for battery cells of different sizes, the clamping finger can be slid to achieve a slight change in distance relative to the adapter, and the clamping finger can be limited to a predetermined position of the adapter by the first limiter, thereby achieving reliable clamping of battery cells of various sizes and specifications, and improving compatibility.

[0022] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0024] Figure 1 is a schematic structural diagram of a clamping device provided in some embodiments of the present application at an angle;

[0025] Figure 2 is a schematic diagram of the structure of the adapter provided in some embodiments of the present application;

[0026] Figure 3 is a schematic diagram of the structure of the clamping finger provided in some embodiments of the present application;

[0027] Figure 4 is a schematic structural diagram of a clamping device provided in some embodiments of the present application from another angle;

[0028] Figure 5 is a schematic diagram of the structure of a screw provided in some embodiments of the present application;

[0029] Figure 6 is a front view of a clamping device provided in some embodiments of the present application;

[0030] Figure 7 is a cross-sectional view of a clamping device provided in some embodiments of the present application.

[0031] The reference numerals in the specific implementation manner are as follows:

[0032] 10 clamping device, 20 battery cells;

[0033] 1 driving assembly, 11 active end;

[0034] 2 clamping unit, 21 adapter, 211 adapter part, 2111 slider, 2112 recess, 212 blocking part, 2121 connecting hole, 213 scale mark, 22 clamping finger, 221 slide groove, 2211 convex part, 222 first threaded hole, 223 indicating part, 23 first limiting member, 24 screw rod, 25 second limiting member, 26 elastic layer, 261 anti-slip groove, 27 detection member, 27a first detection member, 27b second detection member;

[0035] 3 speed regulating valve;

[0036] X is the first direction, Y is the second direction, and Z is the third direction. DETAILED DESCRIPTION

[0037] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0038] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should have the common meanings understood by technicians in the field to which the embodiments of the present application belong.

[0039] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0040] In addition, the technical terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0041] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0042] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0044] In the battery manufacturing process, it is necessary to transport battery cells and related components to realize battery assembly. The clamping device is one of the key components for handling battery cells. The clamping device drives the clamping fingers to move to clamp the battery cells and other related components. Since the battery manufacturing process may involve the handling of battery cells of various specifications and sizes, it is necessary to adjust the initial position of the clamping fingers to achieve the clamping of batteries of various specifications and sizes.

[0045] However, the related art often adopts the method of setting multiple connecting holes to achieve the initial position adjustment of the clamping fingers. However, the accuracy of the above adjustment method is poor. In the actual adjustment process, when the clamping fingers are moved back one hole position, the initial position distance between the clamping fingers may be too large, affecting the clamping reliability; or when the clamping fingers are moved forward one hole position, the initial position distance between the clamping fingers may be too small, increasing the risk of collision between the clamping fingers and the battery cell. Therefore, the clamping device in the related art has poor compatibility and it is difficult to achieve reliable clamping of the battery cell.

[0046] Based on the above considerations, in order to improve the clamping reliability, the embodiment of the present application provides a new clamping device, which can achieve a slight change in the distance of the clamping fingers by slidingly connecting the clamping fingers to the connecting member, thereby improving the clamping reliability. Figures 1 to 7 The clamping device in the embodiment of the present application is described in detail.

[0047] See also Figure 1 , Figure 1 The schematic diagram of the structure of the clamping device 10 provided in some embodiments of the present application is shown. The embodiment of the present application provides a clamping device 10, including a driving component 1 and a clamping component, the clamping component is connected to the driving component 1, the clamping component includes a plurality of clamping units 2, a clamping space is formed between the plurality of clamping units 2, and the driving component 1 is configured to drive the plurality of clamping units 2 to move closer to or away from each other to clamp the battery cell 20.

[0048] Among them, the clamping unit 2 includes an adapter 21, a clamping finger 22 and a first limit member 23. The adapter 21 is connected to the driving assembly 1. The clamping finger 22 of at least one clamping unit 2 is slidably connected to the adapter 21 along the moving direction of the clamping unit 2. The first limit member 23 is connected to at least one of the clamping finger 22 and the adapter 21 and can limit the freedom of movement of the clamping finger 22 away from the clamping space.

[0049] The clamping device 10 in the embodiment of the present application includes a driving component 1 and a plurality of clamping units 2, at least one clamping unit 2 includes an adapter 21, a clamping finger 22 and a first limiter 23, the clamping finger 22 is slidably connected to the adapter 21 along the moving direction of the clamping unit 2, so that for battery cells 20 of different sizes, the clamping finger 22 can be slid to achieve a slight distance change of the clamping finger 22 relative to the adapter 21, and the clamping finger 22 is limited to a predetermined position of the adapter 21 by the first limiter 23, thereby achieving reliable clamping of battery cells 20 of various sizes and specifications, thereby improving compatibility.

[0050] It should be noted that the clamping device 10 in this embodiment is not limited to clamping the battery cell 20, that is, the object to be clamped includes but is not limited to the battery cell 20 and other related components in the battery. However, for ease of description, the following description takes the battery cell 20 as an example.

[0051] In the embodiment of the present application, the driving component 1 refers to a component used to drive the clamping component to move. The driving component 1 may include at least one of a motor, a hydraulic device, a pneumatic device, etc. The driving component 1 includes a fixed end and a movable end 11, and the movable end 11 can be reciprocated relative to the fixed end.

[0052] The clamping assembly includes a plurality of clamping units 2, at least some of which are connected to the movable end 11 of the driving assembly 1 and can reciprocate under the drive of the movable end 11. The driving assembly 1 may include a plurality of movable ends 11. In some embodiments, the number of movable ends 11 may be equal to the number of clamping units 2. The clamping units 2 are connected to the movable ends 11 correspondingly and can move toward or away from each other under the drive of the movable ends 11 to achieve the clamping of the battery cell 20. In other embodiments, the number of movable ends 11 may also be less than the number of clamping units 2. Some of the plurality of clamping units 2 are connected to the movable end 11, and the other part is connected to the fixed end. The clamping of the battery cell 20 is achieved by moving the clamping unit 2 connected to the movable end 11 relative to the clamping unit 2 connected to the fixed end.

[0053] According to the clamping requirements of the battery cell 20, the number of clamping units 2 can be set to two, and the number of clamping units 2 can also be set to more than two, for example, it can be three or four. The driving component 1 is used to drive the clamping units 2 to move closer to or away from each other, so as to achieve reliable clamping of the battery cell 20 by respectively abutting the multiple clamping units 2 against different surfaces of the battery cell 20.

[0054] As an optional implementation, taking the example that the clamping assembly includes two clamping units 2 arranged opposite to each other along the first direction X, the driving assembly 1 may include a driving cylinder, the driving cylinder includes movable ends 11 arranged opposite to each other along the first direction X, the clamping unit 2 is connected to the movable end 11, and a clamping space is formed between the two clamping units 2 along the first direction X. The clamping units 2 can move close to each other along the first direction X driven by the movable end 11 to achieve the clamping of the battery cell 20. For ease of description, the clamping unit 2 of the present application is described below by taking the example that the clamping assembly includes two clamping units 2 arranged opposite to each other along the first direction X.

[0055] The clamping unit 2 includes an adapter 21, a clamping finger 22 and a first stopper 23. The adapter 21 refers to an adapter part 211 for connecting the clamping finger 22 to the driving assembly 1. The adapter 21 can be connected to the movable end 11 of the driving assembly 1 by a thread. When the clamping assembly includes two clamping units 2 arranged relatively along the first direction X, the moving direction of the clamping unit 2 is the first direction X. Therefore, the adapter 21 can extend a preset distance along the first direction X, so that the clamping finger 22 can be moved relative to the adapter 21 along the first direction X.

[0056] The clamping fingers 22 refer to components used to clamp the battery cell 20. The clamping fingers 22 in at least one clamping unit 2 can be movably arranged relative to the adapter 21 along the first direction X. The clamping fingers 22 in some clamping units 2 can be slidably connected to the adapter 21 along the first direction X, and the clamping fingers 22 in another part of the clamping units 2 are fixed or adjusted through the connecting holes 2121. Alternatively, the clamping fingers 22 of each clamping unit 2 can be slidably connected to the adapter 21 along the first direction X to improve the stability and reliability of clamping.

[0057] The first limit member 23 refers to a limit member used to limit the freedom of movement of the clamping finger 22 away from the clamping space. After the clamping finger 22 is adjusted to a preset position relative to the adapter 21, the first limit member 23 can fix the clamping finger 22 at the preset position through magnetic attraction or friction force, so as to reduce the risk of loosening or displacement of the clamping finger 22 during operation, thereby improving the stability and reliability of the clamping device 10.

[0058] It is understandable that by slidably connecting at least one clamping finger 22 to the adapter 21, fine adjustment of the initial position of the clamping finger 22 in the clamping device 10 can be achieved, aiming to improve the flexibility and adaptability of the clamping device 10 to meet the clamping requirements of battery cells 20 of different shapes and sizes.

[0059] The clamping device 10 in each embodiment of the present application is further described below in conjunction with the accompanying drawings.

[0060] See also Figures 1 to 3 , Figure 2 shows a schematic structural diagram of an adapter 21 provided in some embodiments of the present application, Figure 3 A schematic structural diagram of the clamping finger 22 provided in some embodiments of the present application is shown.

[0061] In some optional embodiments, along the moving direction of the clamping unit 2, one of the clamping finger 22 and the adapter 21 is provided with a slide groove 221, and the other is provided with a slider 2111 that cooperates with the slide groove 221, and the slider 2111 is embedded in the slide groove 221 and cooperates with the slide groove 221.

[0062] Optionally, a slide groove 221 can be provided on the clamping finger 22, and the slide groove 221 can be extended along the first direction X. The adapter 21 is provided with a slider 2111 protruding toward the clamping finger 22. By moving the slider 2111 relative to the slide groove 221, a sliding connection between the clamping finger 22 and the adapter 21 is achieved, thereby improving the reliability and stability of the adjustment process.

[0063] Optionally, the slide groove 221 can be set as a dovetail groove, a T-slot or other groove structures, and the slider 2111 is adapted to the slide groove 221, so as to reduce the risk of the adapter 21 detaching from the groove of the clamping finger 22 by improving the structure of the slide groove 221, thereby further improving the reliability and stability of the adjustment process.

[0064] In some optional embodiments, along the moving direction of the clamping unit 2 , a convex portion 2211 is extended in the slide groove 221 , and a concave portion 2112 is provided on the slider 2111 corresponding to the convex portion 2211 , and the convex portion 2211 matches the concave portion 2112 .

[0065] By providing a convex portion 2211 in the slide groove 221 and providing a concave portion 2112 on the slider 2111 corresponding to the convex portion 2211, the sliding stability can be further improved. Since the convex portion 2211 is extended along the first direction X, the convex portion 2211 can separate the slide groove 221 into multiple sub-slide grooves 221, and the concave portion 2112 can separate the slider 2111 into multiple sub-slide blocks 2111. Through the cooperation of multiple sub-slide blocks 2111 and sub-slide grooves 221, the reliability and stability of the sliding process are further improved.

[0066] Optionally, the number of the protrusions 2211 can be set to one, or can be set to more than two, and the specific number can be adjusted according to the size of the slide groove 221 and the slider 2111.

[0067] See also Figures 1 to 5 , Figure 4 A schematic structural diagram of the clamping device 10 provided in some embodiments of the present application from another angle is shown. Figure 5 A schematic structural diagram of the screw rod 24 provided in some embodiments of the present application is shown.

[0068] In some optional embodiments, the adapter 21 includes an adapter portion 211 and a blocking portion 212, the clamping finger 22 is slidably connected to the adapter portion 211, and the blocking portion 212 is connected to both ends of the adapter portion 211 along the moving direction of the clamping unit 2 and protrudes toward the clamping finger 22. Along the moving direction of the clamping unit 2, the blocking portion 212 is provided with a connecting hole 2121, and the clamping finger 22 is provided with a first threaded hole 222 corresponding to the connecting hole 2121, and the clamping unit 2 further includes a screw 24, which is connected to the first threaded hole 222 and its two ends are rotatably matched with the connecting hole 2121.

[0069] Specifically, the adapter 21 may include an adapter portion 211 and a blocking portion 212, and the screw rod 24 is extended along the moving direction of the clamping unit 2. By connecting the screw rod 24 to the first threaded hole 222 and rotating the two ends of the screw rod 24 with the connecting hole 2121, the blocking portions 212 at the two ends can be used to limit the position of the screw rod 24 along the moving direction of the clamping unit 2. By rotating the screw rod 24, the clamping finger 22 can be driven to move relative to the adapter 21, thereby achieving fine adjustment of the position of the clamping finger 22 relative to the adapter 21, thereby improving the accuracy and reliability of the adjustment.

[0070] It can be understood that the clamping device 10 in the embodiment of the present application drives the clamping fingers 22 to move and adjust the position of the clamping fingers 22 through the spiral transmission and the slide groove 221 mechanism, so as to adjust the opening width between the clamping fingers 22 of the clamping device 10 along the first direction X within a certain range, so as to be suitable for reliable clamping of battery cells 20 of various specifications, thereby improving the compatibility of the clamping device 10.

[0071] Optionally, the screw rod 24 may be provided with a hexagon socket bolt. During the actual adjustment process, the screw rod 24 may be rotated by a standard hexagonal wrench to achieve a position change of the clamping finger 22 relative to the adapter 21 .

[0072] In some optional embodiments, the distances between the screw rod 24 and the two side walls of the slide groove 221 are equal, so as to improve the stability of the adjustment process and reduce the risk of the clamping finger 22 being offset during the adjustment process.

[0073] Optionally, when the slide groove 221 is arranged on the clamping finger 22 and a protrusion 2211 is arranged in the slide groove 221, the protrusion 2211 can be arranged between the groove walls on both sides along the second direction Y, and the second direction Y is perpendicular to the first direction X. The first threaded hole 222 can be arranged on the protrusion 2211, thereby improving the adjustment accuracy and stability while making the structure of the clamping unit 2 more compact and reducing the cost.

[0074] In some optional embodiments, the slide groove 221 is arranged on one of the adapter portion 211 and the clamping finger 22 and passes through its end along the moving direction of the clamping unit 2 to form an opening, and the blocking portion 212 at at least one end is detachably connected to the adapter portion 211 and blocks the opening.

[0075] By making the blocking portion 212 detachably connected to the adapter portion 211 and blocking the opening, the blocking portion 212 can be disassembled according to actual needs, and the clamping finger 22 can be slid out of the opening to achieve the disassembly of the clamping finger 22. That is, the clamping finger 22 forms a modular design, and when the clamping finger 22 needs to be replaced or maintained, the clamping finger 22 can be removed from the adapter 21 as a whole, reducing downtime and maintenance costs.

[0076] It is understandable that the slide groove 221 may only form an opening at one end of the moving direction of the clamping unit 2, and the blocking portion 212 on the corresponding side may be detachably connected to the adapter 211 to block the opening. Alternatively, the slide groove 221 may also form openings at both ends of the moving direction of the clamping unit 2, and the blocking portions 212 on both sides may be detachably connected to the adapter 211, so that the blocking portion 212 on either side may be disassembled according to needs to achieve replacement of the clamping finger 22, thereby improving convenience.

[0077] In some optional embodiments, the clamping finger 22 is penetrated by a second threaded hole, and the first limiting member 23 includes a set screw, which is connected to the second threaded hole and abuts against the adapter 21 .

[0078] That is, for the first limit member 23, it can be set as a set screw, and the clamping finger 22 is provided with a second threaded hole along the third direction Z. The set screw can be connected to the second threaded hole along the third direction Z and abut against the adapter 21. The third direction Z intersects with the first direction X. By tightening the set screw, the relative fixation of the clamping finger 22 and the adapter 21 can be achieved through friction, thereby reducing the risk of loosening or displacement of the clamping finger 22 during operation and improving the stability and reliability of the clamping device 10.

[0079] Optionally, the third direction Z may be set as a vertical direction.

[0080] See also Figures 1 to 7 , Figure 6 1 shows a front view of a clamping device 10 provided in some embodiments of the present application, Figure 7A cross-sectional view of a clamping device 10 provided in some embodiments of the present application is shown.

[0081] In some optional embodiments, a scale mark 213 extending along the moving direction of the clamping unit 2 is provided on the adapter 21, and an indicator portion 223 is provided on the clamping finger 22, which points to the scale mark 213 for quantifying the position of the clamping finger 22 relative to the adapter 21.

[0082] By providing a scale mark 213 on the adapter 21 and an indicator 223 on the clamping finger 22, the change of the moving position of the clamping finger 22 can be indicated. For example, after clamping a battery cell 20 of a certain model, when it is necessary to replace it with a battery cell 20 of another model, the initial position of the clamping fingers 22 on both sides relative to the adapter 21 can be adjusted accordingly according to the width difference of the battery cells 20 of the two battery models along the first direction X, thereby improving the adjustment efficiency and reducing the production cost of the battery.

[0083] Optionally, the scale mark 213 can be engraved on the surface of the adapter 21 and the clamping finger 22 to facilitate reading and improve service life. The accuracy of the scale mark 213 can be set to millimeter level to improve the adjustment accuracy.

[0084] In some optional embodiments, at least one clamping unit 2 further includes a second limit member 25, which is disposed on the side of the adapter 21 and / or the clamping finger 22 facing the clamping space. The second limit member 25 is protruding relative to the clamping surface of the clamping finger 22 and is used to limit the depth of the object to be clamped extending into the clamping space.

[0085] Among them, the clamping surface refers to the surface of the clamping finger 22 used to clamp the battery cell 20. By setting a second limiter 25 on at least one clamping unit 2, the clamping position of the clamping finger 22 can be limited, thereby reducing the risk of the clamping position exceeding the predetermined safety or working range during the process of clamping the battery cell 20, thereby improving the reliability of clamping.

[0086] Optionally, the clamping finger 22 includes a first connection portion and a second connection portion that are intersectingly arranged, the first connection portion extending along the first direction X and used for slidingly cooperating with the adapter 21, and the second connection portion extending along the third direction Z to form a clamping surface to achieve clamping of the battery cell 20. On this basis, the second limiter 25 can be arranged on the clamping finger 22 and located at one end of the clamping surface close to the first connection portion, so as to facilitate the arrangement of the second limiter 25 and simplify the structure of the clamping unit 2.

[0087] In some optional embodiments, the material of the clamping finger 22 of at least one clamping unit 2 includes stainless steel or carbon steel, and / or, the clamping finger 22 of at least one clamping unit 2 includes a clamping finger 22 body and a protective layer, and the protective layer covers at least a portion of the surface of the clamping finger 22 body.

[0088] Since the clamping fingers 22 are frequently used, by making the material of the clamping fingers 22 of at least one clamping unit 2 include stainless steel or carbon steel, and / or covering the surface of the main body of the clamping fingers 22 of at least one clamping unit 2 with a protective layer, the strength, wear resistance and durability of the clamping fingers 22 can be improved, so that the clamping fingers 22 have good mechanical properties and the service life of the clamping device 10 is increased.

[0089] Optionally, the protective layer may be formed by hardening the surface of the main body of the clamp finger 22, or by chrome plating, spraying a ceramic coating, etc., to improve its wear resistance and service life.

[0090] See also Figures 1 to 7 In some optional embodiments, at least one clamping unit 2 further includes an elastic layer 26 , and the elastic layer 26 is connected to the clamping surface of the clamping finger 22 .

[0091] By providing an elastic layer 26 on the clamping surface of the clamping finger 22, the elastic layer 26 has a certain elasticity, which can increase the friction between the clamping finger 22 and the clamped object, thereby improving the stability and reliability of clamping. At the same time, since the clamping finger 22 contacts the battery cell 20 through the elastic layer 26 during the clamping process, the elastic layer 26 is used as a protective layer to reduce the direct contact between the clamping finger 22 and the battery cell 20, extend the service life of the clamping finger 22, and reduce the risk of damage or falling off of the battery cell 20, thereby improving the stability and reliability of the clamping device 10.

[0092] Optionally, the elastic layer 26 may include a rubber pad with a certain thickness and hardness, which may be assembled with the clamping finger 22 by threaded connection, so that the reliability and service life of the clamping device 10 may be extended by replacing the rubber pad. Of course, the elastic layer 26 may also be set to other flexible materials that can meet the clamping requirements of the battery cell 20.

[0093] Optionally, a non-slip groove 261 is provided on one side surface of the elastic layer 26 facing the clamping space, that is, by performing non-slip treatment on the elastic layer 26 , the risk of the battery cell 20 falling off can be further reduced, thereby achieving reliable clamping of the battery cell 20 .

[0094] See also Figures 1 to 7 In some optional embodiments, the clamping device 10 also includes a detection member 27, which is connected to at least one of the driving component 1 and the clamping component. The detection member 27 is used to detect whether a battery cell 20 is provided in the clamping space, so that when the battery cell 20 is detected, the clamping unit 2 can be driven by the driving component 1 to achieve reliable clamping of the battery cell 20.

[0095] Optionally, the number of the detection member 27 can be one or more. The detection member 27 can be arranged only on the drive assembly 1, or only on the adapter 21 and / or the clamping finger 22 of the clamping assembly, or simultaneously on the drive assembly 1 and the clamping assembly to form a foolproof design and improve the accuracy of detection.

[0096] As an optional implementation, the detection member 27 may include a first detection member 27a disposed between two adjacent clamping fingers 22 along the first direction X, and the first detection member 27a may be connected to the adapter 21 via a bracket. The first detection member 27a may be configured as a photoelectric switch, and the first detection member 27a is disposed toward the clamping space along the third direction Z to achieve detection of the battery cell 20.

[0097] As another optional implementation, the detection member 27 may further include a second detection member 27 b disposed on at least one clamping finger 22 . The second detection member 27 b may be configured as a proximity switch. The second detection member 27 b is disposed along the first direction X toward the clamping space to realize detection of the battery cell 20 .

[0098] In some optional embodiments, the clamping device 10 further includes a speed regulating valve 3 , which is connected to the driving assembly 1 , and is used to adjust the moving speed of the clamping unit 2 .

[0099] When the driving component 1 is set as a pneumatic device, the flow rate of the gas can be adjusted by the speed regulating valve 3 to control the opening and closing speed of the clamping unit 2, thereby achieving precise control of the opening and closing action of the clamping unit 2, which can not only improve the control accuracy and response speed, but also improve the smoothness and accuracy of the action of the clamping unit 2.

[0100] See also Figures 1 to 7 , the clamping device 10 in an embodiment of the present application is described below by taking the clamping device 10 in an embodiment as an example.

[0101] The clamping device 10 in the embodiment of the present application includes a driving component 1 and a clamping component. The clamping component is connected to the driving component 1. The clamping component includes clamping units 2 arranged in pairs along a first direction X. A clamping space is formed between the clamping units 2. The driving component 1 is configured to drive the multiple clamping units 2 to move closer to or away from each other along the first direction X to clamp the battery cell 20.

[0102] Among them, the clamping unit 2 includes an adapter 21, a clamping finger 22, a screw 24 and a set screw. The adapter 21 includes an adapter portion 211 and a blocking portion 212. The adapter portion 211 and the clamping finger 22 are slidingly connected along the first direction X through a slide groove 221 mechanism. The blocking portion 212 is arranged at both ends of the adapter portion 211 along the first direction X and protrudes toward the clamping finger 22. The clamping finger 22 is provided with a first threaded hole 222, and the screw 24 is connected to the first threaded hole 222 and its two ends are rotatably matched with the blocking part 212. Therefore, the clamping finger 22 is driven to move and adjust the position of the clamping finger 22 through the spiral transmission and the slide groove 221 mechanism, so that the opening width between the clamping fingers 22 of the clamping device 10 along the first direction X can be adjusted within a certain range. After adjustment, the set screw can be passed through the clamping finger 22 to abut against the adapter 211 to achieve relative fixation of the clamping finger 22 and the adapter 21, so that it can be suitable for reliable clamping of battery cells 20 of various specifications, thereby improving the compatibility of the clamping device 10.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution, and all technical features and optional technical features of the present application can be combined with each other to form a new technical solution. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A clamping device, characterized in that: include: Drive components; A clamping assembly connected to the driving assembly, the clamping assembly comprising a plurality of clamping units, a clamping space being formed between the plurality of clamping units, and the driving assembly being configured to drive the plurality of clamping units to move closer to or away from each other to clamp an object to be clamped; Wherein, the clamping unit includes an adapter, a clamping finger and a first limit member, the adapter is connected to the driving assembly, at least one clamping finger of the clamping unit is slidably connected to the adapter along the moving direction of the clamping unit, and the first limit member is connected to at least one of the clamping finger and the adapter and can limit the freedom of movement of the clamping finger away from the clamping space.

2. The clamping device according to claim 1, characterized in that: Along the moving direction of the clamping unit, one of the clamping finger and the adapter is provided with a slide groove, and the other is provided with a slider matched with the slide groove, and the slider is embedded in the slide groove and matched with the slide groove.

3. The clamping device according to claim 2, characterized in that: Along the moving direction of the clamping unit, a convex portion is extended in the sliding groove, and the sliding block is provided with a concave portion corresponding to the convex portion, and the convex portion matches the concave portion.

4. The clamping device according to claim 2, characterized in that: The adapter comprises an adapter portion and a blocking portion, the clamping finger is slidably connected to the adapter portion, and the blocking portion is connected to two ends of the adapter portion along the moving direction of the clamping unit and protrudes toward the clamping finger; Along the moving direction of the clamping unit, the blocking part is provided with a connecting hole, the clamping finger is provided with a first threaded hole corresponding to the connecting hole, and the clamping unit also includes a screw rod, which is connected to the first threaded hole and has two ends thereof rotatably matched with the connecting hole.

5. The clamping device according to claim 4, characterized in that: The distances between the screw rod and the groove walls on both sides of the sliding groove are equal.

6. The clamping device according to claim 4, characterized in that: The slide groove is arranged on one of the adapter and the clamping finger and penetrates through the end thereof along the moving direction of the clamping unit to form an opening. The blocking portion at at least one end is detachably connected to the adapter and blocks the opening.

7. The clamping device according to any one of claims 1 to 6, characterized in that: The clamping finger is penetrated by a second threaded hole, and the first limiting member includes a set screw, which is connected to the second threaded hole and abuts against the adapter.

8. The clamping device according to any one of claims 1 to 6, characterized in that: The adapter is provided with a scale mark extending along the moving direction of the clamping unit, and the clamping finger is provided with an indicating portion, and the indicating portion points to the scale mark.

9. The clamping device according to any one of claims 1 to 6, characterized in that: At least one of the clamping units also includes a second limit member, which is arranged on the side of the adapter and / or the clamping finger facing the clamping space. The second limit member is protruding relative to the clamping surface of the clamping finger and is used to limit the depth of the object to be clamped extending into the clamping space.

10. The clamping device according to any one of claims 1 to 6, characterized in that: The material of the clamping fingers of at least one of the clamping units includes stainless steel or carbon steel, and / or the clamping fingers of at least one of the clamping units include a clamping finger body and a protective layer, and the protective layer covers at least a portion of the surface of the clamping finger body.

11. The clamping device according to any one of claims 1 to 6, characterized in that: At least one of the clamping units further comprises an elastic layer, wherein the elastic layer is connected to the clamping surface of the clamping finger.

12. The clamping device according to claim 11, characterized in that: A non-slip groove is arranged on a surface of one side of the elastic layer facing the clamping space.

13. The clamping device according to any one of claims 1 to 6, characterized in that: The clamping device further comprises a detection member, which is connected to at least one of the driving assembly and the clamping assembly, and is used to detect whether the object to be clamped is arranged in the clamping space.

14. The clamping device according to any one of claims 1 to 6, characterized in that: The clamping device further comprises a speed regulating valve, which is connected to the driving assembly and is used to adjust the moving speed of the clamping unit.

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