Cover buckling mechanism and welding equipment

Abstract

The utility model relates to a cover buckling mechanism and welding equipment. The cover buckling mechanism comprises a first clamping assembly and a second clamping assembly, wherein the first clamping assembly is provided with a first clamping block; the second clamping assembly is provided with a second clamping block opposite to the first clamping block, and the first clamping assembly and the second clamping assembly are constructed to be capable of driving the first clamping block and the second clamping block to jointly clamp or loosen the shell; the pressure head assembly is used for pressing the shell cover into the opening of the shell; the first clamping block and / or the second clamping block are / is provided with an air blowing opening, and the air blowing opening is used for blowing protective gas into the opening of the shell. Thus, protective gas is blown to the opening of the shell through the air blowing opening in the first clamping block, so that the shell is filled with the protective gas, air in the shell is discharged out of the shell, it is ensured that the shell is filled with the protective gas after covering is completed, and the situation that air existing in the battery causes adverse effects on electrolyte is avoided; the battery quality is improved and the battery life is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing equipment, and particularly to a cover pressing mechanism and a welding device. Background Art

[0002] A battery mainly includes a battery cell assembly, a steel shell, and a cover. During the assembly process, first, the battery cell assembly is placed into the steel shell through the opening of the steel shell (i.e., shell insertion), then the cover is placed on the opening of the steel shell, and then the cover is welded and fixed to the steel shell by laser welding. After the assembly is completed, electrolyte is injected into the steel shell. Since air will enter the inside of the steel shell when the cover is placed on the opening of the steel shell, the air inside the battery will have an adverse effect on the electrolyte during subsequent use, and further have an adverse effect on the quality and life of the battery. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a cover pressing mechanism and a welding device that can improve the quality of the battery and extend the life of the battery for the above problems.

[0004] A cover pressing mechanism for pressing a cover of a battery into an opening of a housing, the cover pressing mechanism includes:

[0005] A first clamping assembly having a first clamping block;

[0006] A second clamping assembly having a second clamping block disposed opposite to the first clamping block, the first clamping assembly and the second clamping assembly being configured to be able to respectively drive the first clamping block and the second clamping block to jointly clamp or release the housing; and

[0007] A pressing head assembly for pressing the cover into the opening of the housing clamped by the first clamping block and the second clamping block;

[0008] Wherein, the first clamping block and / or the second clamping block are provided with air blowing ports for blowing protective gas into the opening of the housing.

[0009] In some embodiments, both sides of the first clamping block and the second clamping block facing each other have an arc-shaped clamping surface and an arc-shaped limiting surface;

[0010] When the first clamping block and the second clamping block move closer to each other to the position of clamping the housing, the housing is clamped between the arc-shaped clamping surface of the first clamping block and the arc-shaped clamping surface of the second clamping block, and the cover is limited between the arc-shaped limiting surface of the first clamping block and the arc-shaped limiting surface of the second clamping block.

[0011] In some of these embodiments, the air blowing port is opened on the arc-shaped limiting surface of the first clamping block and / or the arc-shaped limiting surface of the second clamping block.

[0012] In some of these embodiments, the mutually facing sides of the first clamping block and the second clamping block further have arc-shaped avoiding surfaces;

[0013] When the arc-shaped clamping surfaces of the first clamping block and the second clamping block jointly clamp the housing, the arc-shaped avoiding surfaces on the first clamping block and the arc-shaped avoiding surfaces on the second clamping block are both opposite to the rolling groove area on the housing and have a gap therebetween.

[0014] In some of these embodiments, on the first clamping block or the second clamping block, the arc-shaped clamping surface is located between the arc-shaped avoiding surface and the arc-shaped limiting surface.

[0015] In some of these embodiments, the first clamping assembly includes a first fixed seat, a first moving seat and a first driving member. The first moving seat is movably connected to the first fixed seat. The first driving member is installed on the first fixed seat and is drivingly connected to the first moving seat. The first clamping block is arranged on one side of the first moving seat facing the second clamping block;

[0016] The first driving member is used to drive the first moving seat to move relative to the first fixed seat, so that the first moving seat drives the first clamping block to approach or move away from the second clamping block.

[0017] In some of these embodiments, the position of the first clamping block relative to the first moving seat is adjustable in the vertical direction.

[0018] In some of these embodiments, the second clamping assembly includes a second fixed seat, a second moving seat and a second driving member. The second moving seat is movably connected to the second fixed seat. The second driving member is installed on the second fixed seat and is drivingly connected to the second moving seat. The second clamping block is arranged on one side of the second moving seat facing the first clamping block;

[0019] The second driving member is used to drive the second moving seat to move relative to the second fixed seat, so that the second moving seat drives the second clamping block to approach or move away from the first clamping block.

[0020] In some of these embodiments, the position of the second clamping block relative to the second moving seat is adjustable in the vertical direction.

[0021] In some of these embodiments, the cap-pressing mechanism further includes a jacking assembly, which is configured to jack up the battery passing by to between the first clamping block and the second clamping block.

[0022] A welding device includes a conveying mechanism, a welding mechanism, and the cap-pressing mechanism described in any of the foregoing embodiments;

[0023] The conveying mechanism is configured to convey the battery to pass by the cap-pressing mechanism and the welding mechanism in sequence, and the welding mechanism is configured to weld the housing and the housing cover of the battery.

[0024] In the actual use process of the above cap-pressing mechanism and welding device, first, the first clamping assembly controls the first clamping block to move closer to the second clamping block, and at the same time, the second clamping assembly controls the second clamping block to move closer to the first clamping block until the first clamping block and the second clamping block jointly clamp the housing of the battery. Then, the air blowing port on the first clamping block blows a protective gas to the opening of the housing, thereby discharging the air at the opening of the housing to outside the housing. At the same time, the pressing head assembly presses the housing cover at the opening of the housing cover until the housing cover is pressed into the opening of the housing, that is, the cap-pressing is completed. In this way, during the cap-pressing process, the air blowing port on the first clamping block blows a protective gas to the opening of the housing, so that the protective gas fills the inside of the housing and discharges the air in the housing to outside the housing, ensuring that the inside of the housing is filled with the protective gas after the cap-pressing is completed, that is, avoiding the adverse effect on the electrolyte due to the presence of air inside the battery, which is beneficial to improving the battery quality and extending the battery life. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the cap-pressing mechanism in an embodiment of the present application;

[0026] Figure 2 is Figure 1 the front view of the cap-pressing mechanism shown;

[0027] Figure 3 is Figure 2 the front view of the cap-pressing mechanism shown (some components such as the jacking assembly and the frame are omitted);

[0028] Figure 4 is Figure 3 the sectional view of the cap-pressing mechanism shown (in the state of releasing the battery);

[0029] Figure 5 is Figure 2 the schematic structural diagram of the first clamping block of the cap-pressing mechanism shown;

[0030] Figure 6 is Figure 3Cross-sectional view of the first clamping block and the second clamping block of the cover-clamping mechanism shown (in the state of clamping the battery). Detailed implementation manners

[0031] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present application, unless otherwise clearly defined and limited, the terms "mount", "connect", "couple", "fix", etc. should be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0035] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0037] Please refer to Figures 1 to 4 , this application provides a welding device, including a conveying mechanism, a capping mechanism and a welding mechanism. The conveying mechanism is used to convey battery A through the capping mechanism and the welding mechanism in sequence. Battery A includes a housing A1 and a cover A2. One end of the housing A1 has an opening (not marked in the figure), and the cover A2 is disposed at the opening of the housing A1. When the conveying mechanism conveys battery A to the capping mechanism, the capping mechanism presses the cover A2 into the opening of the housing A1, that is, the capping is completed. When the conveying mechanism conveys battery A to the welding mechanism, the welding mechanism welds the housing A1 and the cover A2 of battery A, so as to realize sealing the opening of the housing A1 with the cover A2.

[0038] In an embodiment of this application, the capping mechanism includes a first clamping assembly 10, a second clamping assembly 20 and a pressing head assembly 30. The first clamping assembly 10 has a first clamping block 11, and the second clamping assembly 20 has a second clamping block 21. The first clamping block 11 and the second clamping block 21 are arranged opposite to each other along the first direction X. The first clamping assembly 10 and the second clamping assembly 20 are configured to be able to drive the first clamping block 11 and the second clamping block 21 respectively to jointly clamp or release the housing A1 of battery A. The pressing head assembly 30 is used to press the cover A2 into the opening of the housing A1 clamped by the first clamping block 11 and the second clamping block 21. Among them, the first clamping block 11 is provided with a blowing port 111 (see Figure 4 ), and the blowing port 111 is used to blow a protective gas into the opening of the housing A1.

[0039] In the actual use process of the above-mentioned cover buckling mechanism, first, the first clamping component 10 controls the first clamping block 11 to move closer to the second clamping block 21, and at the same time, the second clamping component 20 controls the second clamping block 21 to move closer to the first clamping block 11 until the first clamping block 11 and the second clamping block 21 jointly clamp the housing A1 of the battery A. Then, the air blowing port 111 on the first clamping block 11 blows a protective gas towards the opening of the housing A1, thereby discharging the air at the opening of the housing A1 to the outside of the housing A1. At the same time, the pressing head component 30 presses the cover A2 at the opening of the cover A2 until the cover A2 is pressed into the opening of the housing A1, that is, the cover buckling is completed. In this way, during the process of buckling the cover, the air blowing port 111 on the first clamping block 11 blows a protective gas towards the opening of the housing A1, so that the protective gas fills the inside of the housing A1 and discharges the air inside the housing A1 to the outside of the housing A1, ensuring that the inside of the housing A1 is filled with the protective gas after the cover buckling is completed, that is, avoiding the adverse effect of the existence of air inside the battery A on the electrolyte, which is beneficial to improving the quality of the battery A and extending the service life of the battery A.

[0040] It should be noted that the protective gas blown out by the air blowing port 111 can be argon, nitrogen, etc., as long as it does not cause adverse effects on the components and electrolyte inside the battery A, and it is not limited here.

[0041] It should also be noted that the air blowing port 111 is not limited to being opened on the first clamping block 11. That is to say, in some embodiments, the air blowing port 111 is opened on the first clamping block 11 and not on the second clamping block 21. In other embodiments, the air blowing port 111 is not opened on the first clamping block 11 and is opened on the second clamping block 21. In still another embodiment, the air blowing port 111 is opened on the first clamping block 11 and the air blowing port 111 is also opened on the second clamping block 21. It can be understood that as long as any one of the first clamping block 11 and the second clamping block 21 is provided with the air blowing port 111 or both are provided with the air blowing port 111, and as long as it can realize blowing the protective gas into the opening of the housing A1, it is not limited here. For the convenience of description, in this article, the example where the air blowing port 111 is opened on the first clamping block 11 and not on the second clamping block 21 is used for illustration.

[0042] Please refer to Figure 4 and Figure 5 As shown, further, the first clamping block 11 further has an air flow channel 112 and an air inlet 113, the air flow channel 112 is communicated with the air inlet 113 and the air blowing port 111, and the air inlet 113 is communicated with an external gas source through a pipeline. In this way, the protective gas provided by the external gas source enters the air flow channel 112 from the air inlet 113, and the protective gas entering the air flow channel 112 is blown out through the air blowing port 111 into the opening of the housing A1, thereby realizing the discharge of the air inside the housing A1.

[0043] In the embodiments of the present application, on one side of the first clamping block 11 and the second clamping block 21 facing each other, there are an arc-shaped clamping surface c1 and an arc-shaped limiting surface c2. When the first clamping block 11 and the second clamping block 21 move closer to each other along the first direction X to the position of clamping the housing A1, the housing A1 is clamped between the arc-shaped clamping surface c1 of the first clamping block 11 and the arc-shaped clamping surface c1 of the second clamping block 21. The housing cover A2 located at the opening of the housing A1 is limited between the arc-shaped limiting surface c2 of the first clamping block 11 and the arc-shaped limiting surface c2 of the second clamping block 21. In this way, the arc-shaped clamping surface c1 on the first clamping block 11 and the arc-shaped clamping surface c1 on the second clamping block 21 are used to jointly clamp the housing A1, that is, the arc-shaped clamping surface c1 of the first clamping block 11 and the arc-shaped clamping surface c1 of the second clamping block 21 match the outer surface of the housing A1, thereby increasing the contact area with the housing A1 and making the clamping of the housing A1 more stable. While clamping the housing A1 of the battery A by using the arc-shaped clamping surface c1, the housing cover A2 at the opening of the housing A1 is limited between the arc-shaped limiting surface c2 of the first clamping block 11 and the arc-shaped limiting surface c2 of the second clamping block 21, preventing the position of the housing cover A2 from shifting and causing it to be unable to be pressed into the opening of the housing A1 by the pressing head assembly 30.

[0044] Specifically, in the embodiment shown in the drawings, the outer surface of the housing A1 of the battery A is a cylindrical surface, and the arc-shaped clamping surfaces c1 of the first clamping block 11 and the second clamping block 21 are both semi-circular arcs.

[0045] Furthermore, the air blowing port 111 is opened on the above-mentioned arc-shaped limiting surface c2. Since the arc-shaped limiting surface c2 is used to limit the housing cover A2 at the opening of the housing A1, that is, the arc-shaped limiting surface c2 is located at the opening of the housing A1. Opening the air blowing port 111 on the arc-shaped limiting surface c2 makes the air blowing port 111 face the opening of the housing A1, ensuring that the air blowing port 111 can accurately blow the protective gas into the opening of the housing A1.

[0046] It should be noted that a rolling groove is formed at one end of the housing A1 with an opening, that is, the area on the outer side of the housing A1 where the rolling groove is located is the rolling groove area a. Since the radial dimension of the rolling groove area a is uneven due to deformation during the formation of the rolling groove, it is prone to the phenomenon that the first clamping block 11 and the second clamping block 21 do not firmly clamp the housing A1. In order to ensure a more stable clamping of the housing A1, in some embodiments, the mutually facing sides of the first clamping block 11 and the second clamping block 21 further have arc-shaped avoidance surfaces c3. When the arc-shaped clamping surfaces c1 of the first clamping block 11 and the arc-shaped clamping surfaces c1 of the second clamping block 21 jointly clamp the housing A1, the arc-shaped avoidance surfaces c3 on the first clamping block 11 and the arc-shaped avoidance surfaces c3 on the second clamping block 21 are both opposite to the rolling groove area a on the housing A1 and there is a gap. In this way, the arc-shaped avoidance surfaces c3 on the first clamping block 11 and the second clamping block 21 are used to avoid the rolling groove area a on the housing A1, thereby eliminating the adverse effect of the rolling groove area a on the housing A1 on the clamping of the housing A1. [[ID=II]]

[0047] Furthermore, on the first clamping block 11, the arc-shaped clamping surface c1 is located between the arc-shaped avoidance surface c3 and the arc-shaped limiting surface c2. On the second clamping block 21, the arc-shaped clamping surface c1 is also located between the arc-shaped avoidance surface c3 and the arc-shaped limiting surface c2. In this way, the arc-shaped clamping surfaces c1 on the first clamping block 11 and the arc-shaped clamping surfaces c1 on the second clamping block 21 are used to jointly clamp the clamping area b of the housing A1 between the opening and the rolling groove area a. On the one hand, the arc-shaped limiting surface c2 is located at the opening of the housing A1 to facilitate the limiting of the housing cover A2 at the opening of the housing A1 and ensure that the protective gas blown out from the air blowing port 111 on the arc-shaped limiting surface c2 can enter the opening of the housing A1; on the other hand, the arc-shaped avoidance surface c3 is located at the rolling groove area a of the housing A1, that is, the rolling groove area a of the housing A1 is avoided.

[0048] Furthermore, when the arc-shaped clamping surfaces c1 of the first clamping block I1 and the arc-shaped clamping surfaces c1 of the second clamping block 21 jointly clamp the housing A1 of the battery A, the radial dimension of the cavity formed by enclosing the arc-shaped limiting surfaces c2 on the first clamping block 11 and the arc-shaped limiting surfaces c2 on the second clamping block 21 is the first radial dimension, the radial dimension of the cavity formed by enclosing the arc-shaped clamping surfaces c1 on the first clamping block 11 and the arc-shaped clamping surfaces c1 on the second clamping block 21 is the second radial dimension, and the radial dimension of the cavity formed by enclosing the arc-shaped avoidance surfaces c3 on the first clamping block 11 and the arc-shaped avoidance surfaces c3 on the second clamping block 21 is the third radial dimension. Among them, the first radial dimension is less than the second radial dimension, and the second radial dimension is less than the third radial dimension, so that the two arc-shaped limiting surfaces c2 limit the housing cover A2, the two arc-shaped clamping surfaces c1 clamp the clamping area b on the housing A1, and the two arc-shaped avoidance surfaces c3 avoid the rolling groove area a on the housing A1.

[0049] Please continue to refer to Figures 1 to 4 As shown, in the embodiment of the present application, the cover buckling mechanism further includes a jacking assembly 40, which is used to jack up the passing battery A to between the first clamping block 11 and the second clamping block 21, so as to facilitate the first clamping block 11 and the second clamping block 21 to jointly clamp the housing A1 of the battery A. In this way, when the conveying mechanism conveys the battery A to be covered to the cover buckling mechanism, the jacking assembly 40 jacks up the passing battery A until the end of the housing A1 of the battery A with an opening enters between the first clamping block 11 and the second clamping block 21.

[0050] In the actual operation process, first, the conveying mechanism conveys the battery A to be covered to the cover buckling mechanism; then, the jacking assembly 40 jacks up the battery A until the end of the housing A1 of the battery A with an opening reaches between the first clamping block 11 and the second clamping block 21; then, the first clamping block 11 and the second clamping block 21 approach each other until the arc-shaped clamping surfaces c1 on the first clamping block 11 and the arc-shaped clamping surfaces c1 on the second clamping block 21 jointly clamp the housing A1 of the battery A. At this time, the cover A2 of the battery A is located at the end of the housing A1 with an opening and is limited between the arc-shaped limiting surfaces c2 on the first clamping block 11 and the arc-shaped limiting surfaces c2 on the second clamping block 21. Then, the pressing head assembly 30 moves downward until the cover A2 of the battery A is pressed into the opening of the housing A1, that is, the cover buckling is completed; then, the pressing head assembly 30 moves upward to the initial position, and the first clamping block 11 and the second clamping block 21 move away from each other to release the battery A; then, the jacking assembly 40 descends until the battery A with the cover buckling completed returns to the conveying mechanism again; then, the conveying mechanism conveys the battery A with the cover buckling completed to the downstream to the welding mechanism; then, the welding mechanism is used to weld the battery A that has completed the cover buckling, so that the housing A1 and the cover A2 of the battery A are welded and fixed into a whole.

[0051] Specifically in the embodiment, the jacking assembly 40 includes a lifting driving member 42, a lifting seat 41 and a jacking rod 43. The lifting seat 41 is connected to the driving end of the lifting driving member 42, so that the lifting driving member 42 can drive the lifting seat 41 to rise or fall. The jacking rod 43 is fixedly connected to the top of the lifting seat 41, so that when the lifting seat 41 rises, it can drive the jacking rod 43 to jack up the battery A to be covered. Optionally, the lifting driving member 42 can adopt a cylinder.

[0052] Further, the cover buckling mechanism further includes a frame 50, on which a first slide rail 412 extending longitudinally in the vertical direction is provided, and a first slider 411 is provided on the lifting seat 41. The first slider 411 is mounted on the first slide rail 412 and is slidable along the first slide rail 412. In this way, the movement of the first slider 411 along the first slide rail 412 guides the lifting of the lifting seat 41 relative to the frame 50, ensuring more accurate and smooth lifting of the battery A.

[0053] In an embodiment of the present application, the pressing head assembly 30 includes a downward pressing driving member 33, a downward pressing seat 32, and a pressing head 31. The downward pressing seat 32 is movably connected to the frame 50 in the vertical direction. The downward pressing driving member 33 is mounted on the frame 50 and is drivingly connected to the downward pressing seat 32, so that the downward pressing driving member 33 can drive the downward pressing seat 32 to rise or fall. The pressing head 31 is mounted at the bottom of the downward pressing seat 32, so that when the downward pressing seat 32 descends, it can drive the pressing head 31 to press against the cover A2 of the battery A until the cover A2 is pressed into the opening of the housing A1. Optionally, the downward pressing driving member 33 can be a cylinder.

[0054] Optionally, a second slide rail 322 extending longitudinally in the vertical direction is provided on the frame 50, and a second slider 321 is provided on the downward pressing seat 32. The second slider 321 is mounted on the second slide rail 322, thereby guiding the upward or downward movement of the downward pressing seat 32 by the sliding of the second slider 321 along the second slide rail 322, so that the downward pressing seat 32 can drive the pressing head 31 to accurately press the cover A2 into the opening of the housing A1.

[0055] Further, the pressing head assembly 30 further includes an elastic member, and the pressing head 31 is movably connected to the downward pressing seat 32 in the vertical direction relative to the downward pressing seat 32. The elastic member abuts between the pressing head 31 and the downward pressing seat 32 and is used to provide a pre-tightening force that makes the pressing head 31 have a downward movement tendency relative to the downward pressing seat 32. In this way, during the process of the downward pressing seat 32 driving the pressing head 31 to move downward and pressing against the cover A2, the elastic member plays a role in buffering the impact force between the pressing head 31 and the cover A2, avoiding hard impact on the cover A2 by the pressing head 31, and being beneficial to improving the cover buckling quality. Optionally, the elastic member can be a spring.

[0056] Specifically in the embodiment, the lifting assembly 40 is arranged below the first clamping assembly 10 and the second clamping assembly 20, and the pressing head assembly 30 is arranged above the first clamping assembly 10 and the second clamping assembly 20. The conveying mechanism is used to convey the battery A to be capped to above the ejector rod 43 of the lifting assembly 40, so that the ejector rod 43 can lift the battery A until the end of the housing A1 of the battery A with an opening enters between the first clamping block 11 and the second clamping block 21. After the arc-shaped clamping surface c1 on the first clamping block 11 and the arc-shaped clamping surface c1 on the second clamping block 21 clamp the housing A1 of the battery A, the downward pressing driving member 33 of the pressing head assembly 30 drives the downward pressing seat 32 to move downward, thereby driving the pressing head 31 to move downward and enter between the arc-shaped limiting surface c2 of the first clamping block 11 and the arc-shaped limiting surface c2 of the second clamping block 21 until the housing cover A2 is pressed into the opening of the housing A1.

[0057] In the embodiment of the present application, the first clamping assembly 10 further includes a first fixing seat 12, a first moving seat 13 and a first driving member 14. The first moving seat 13 is movably connected to the first fixing seat 12 along the first direction X. The first driving member 14 is installed on the first fixing seat 12 and is drivingly connected to the first moving seat 13. The first clamping block 11 is arranged on the side of the first moving seat 13 facing the second clamping block 21, so that the first clamping block 11 and the second clamping block 21 are opposite to each other along the first direction X. The first driving member 14 is used to drive the first moving seat 13 to move relative to the first fixing seat 12 along the first direction X, so that the first moving seat 13 drives the first clamping block 11 thereon to approach or move away from the second clamping block 21 along the first direction X, and further enables the first clamping block 11 and the second clamping block 21 to jointly clamp or loosen the housing A1 therebetween. Optionally, the first driving member 14 can be a cylinder.

[0058] Optionally, a third slide rail 132 extending longitudinally along the first direction X is provided on the first fixing seat 12, and a third slider 131 is provided on the first moving seat 13. The third slider 131 is installed on the third slide rail 132 and can slide along the longitudinal extension direction of the third slide rail 132, so as to guide the movement of the first moving seat 13 relative to the first fixing seat 12 along the first direction X by using the sliding of the third slider 131 along the third slide rail 132, making the movement of the first clamping block 11 more accurate and smooth.

[0059] Specifically in the embodiment, the position of the first clamping block 11 relative to the first moving seat 13 is adjustable in the vertical direction, so as to ensure that when the lifting assembly 40 lifts the battery A in place, the arc-shaped clamping surface c1 on the first clamping block 11 faces the clamping area b of the housing A1, the arc-shaped limiting surface c2 on the first clamping block 11 faces the housing cover A2, and the arc-shaped limiting surface c2 on the first clamping block 11 faces the rolling groove area a of the housing A1, so as to facilitate the subsequent accurate clamping of the housing A1 by the first clamping block 11 and the second clamping block 21.

[0060] In the embodiment of the present application, the second clamping assembly 20 further includes a second fixed seat 22, a second moving seat 23 and a second driving member 24. The second moving seat 23 is movably connected to the second fixed seat 22 along the first direction X. The second driving member 24 is installed on the second fixed seat 22 and is drivingly connected to the second moving seat 23. The second clamping block 21 is disposed on one side of the second moving seat 23 facing the first clamping block 11, so that the first clamping block 11 and the second clamping block 21 face each other along the first direction X. The second driving member 24 is used to drive the second moving seat 23 to move relative to the second fixed seat 22 along the first direction X, so that the second moving seat 23 drives the second clamping block 21 thereon to approach or move away from the first clamping block 11 along the first direction X, thereby enabling the first clamping block 11 and the second clamping block 21 to jointly clamp or loosen the housing A1 therebetween. Optionally, the second driving member 24 may adopt a cylinder.

[0061] Optionally, the second fixed seat 22 is provided with a fourth slide rail 232 extending longitudinally along the first direction X, and the second moving seat 23 is provided with a fourth slider 231. The fourth slider 231 is installed on the fourth slide rail 232 and is slidable along the longitudinal extension direction of the fourth slide rail 232, so as to guide the movement of the second moving seat 23 relative to the second fixed seat 22 along the first direction X by using the sliding of the fourth slider 231 along the fourth slide rail 232, making the movement of the second moving seat 23 more accurate and smooth.

[0062] Specifically in the embodiment, the position of the second clamping block 21 relative to the second moving seat 23 is adjustable in the vertical direction, so as to ensure that when the lifting assembly 40 lifts the battery A in place, the arc-shaped clamping surface c1 on the second clamping block 21 faces the clamping area b of the housing A1, the arc-shaped limiting surface c2 on the second clamping block 21 faces the housing cover A2, and the arc-shaped limiting surface c2 on the second clamping block 21 faces the rolling groove area a of the housing A1, so as to facilitate the subsequent accurate clamping of the housing A1 by the first clamping block 11 and the second clamping block 21.

[0063] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0064] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A capping mechanism for pressing the shell cover of a battery into the opening of a housing, characterized in that, The cover buckling mechanism includes: A first clamping assembly having a first clamping block; A second clamping assembly having a second clamping block disposed opposite to the first clamping block, and the first clamping assembly and the second clamping assembly are configured to be able to respectively drive the first clamping block and the second clamping block to jointly clamp or release the housing; and A pressing head assembly for pressing the housing cover into the opening of the housing clamped by the first clamping block and the second clamping block; Wherein, the first clamping block and / or the second clamping block are provided with air blowing ports for blowing protective gas into the opening of the housing.

2. The capping mechanism according to claim 1, wherein One side of the first clamping block and the second clamping block facing each other both has an arc-shaped clamping surface and an arc-shaped limiting surface; When the first clamping block and the second clamping block move closer to each other to the position of clamping the housing, the housing is clamped between the arc-shaped clamping surface of the first clamping block and the arc-shaped clamping surface of the second clamping block, and the housing cover is limited between the arc-shaped limiting surface of the first clamping block and the arc-shaped limiting surface of the second clamping block.

3. The capping mechanism according to claim 2, characterized in that, The air blowing ports are opened on the arc-shaped limiting surface of the first clamping block and / or the arc-shaped limiting surface of the second clamping block.

4. The capping mechanism according to claim 2, wherein The side surfaces of the first clamping block and the second clamping block facing each other also have arc-shaped avoiding surfaces; When the arc-shaped clamping surface of the first clamping block and the arc-shaped clamping surface of the second clamping block jointly clamp the housing, the arc-shaped avoiding surfaces on the first clamping block and the arc-shaped avoiding surfaces on the second clamping block are both opposite to the rolling groove area on the housing and have a gap.

5. The snap-on cover mechanism according to claim 4, wherein, On the first clamping block or the second clamping block, the arc-shaped clamping surface is located between the arc-shaped avoiding surface and the arc-shaped limiting surface.

6. The capping mechanism according to any one of claims 1 to 4, characterized in that The first clamping assembly includes a first fixed seat, a first moving seat and a first driving member. The first moving seat is movably connected to the first fixed seat. The first driving member is installed on the first fixed seat and is drivingly connected to the first moving seat. The first clamping block is disposed on one side of the first moving seat facing the second clamping block; The first driving member is used to drive the first moving seat to move relative to the first fixed seat, so that the first moving seat drives the first clamping block to approach or move away from the second clamping block.

7. The capping mechanism according to claim 6, wherein, The position of the first clamping block relative to the first moving seat is adjustable in the vertical direction.

8. The cover buckling mechanism according to any one of claims 1 to 4, characterized in that, The second clamping assembly includes a second fixed seat, a second moving seat and a second driving member. The second moving seat is movably connected to the second fixed seat. The second driving member is installed on the second fixed seat and is drivingly connected to the second moving seat. The second clamping block is disposed on one side of the second moving seat facing the first clamping block; The second driving member is used to drive the second moving seat to move relative to the second fixed seat, so that the second moving seat drives the second clamping block to approach or move away from the first clamping block.

9. The capping mechanism according to claim 8, characterized in that, The position of the second clamping block relative to the second moving seat is adjustable in the vertical direction.

10. The capping mechanism according to any one of claims 1 to 4, characterized in that, The capping mechanism further includes a lifting assembly, which is used to lift the passing battery to between the first clamping block and the second clamping block.

11. A welding device, characterized in that, It includes a conveying mechanism, a welding mechanism, and the capping mechanism according to any one of claims 1 to 10; The conveying mechanism is used to convey the battery to pass through the capping mechanism and the welding mechanism in sequence, and the welding mechanism is used to weld the housing and the cover of the battery.

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