A bearing device and nail insertion system

Abstract

The present invention discloses a bearing device and a nail insertion system, the bearing device comprises a bearing body, an end cover and a first sealing ring, the bearing body is formed with a first through hole, the end cover is covered on the bearing body, and the end cover is formed with a second through hole connected with the first through hole, the first sealing ring is embedded in the bearing body or the end cover, the hole surrounded by the first sealing ring is connected with the first through hole and the second through hole, the inner diameter of the first sealing ring is smaller than the outer diameter of the glue nail, the diameters of the first through hole and the second through hole are greater than or equal to the outer diameter of the glue nail, and are smaller than the length of the diagonal in the cross section of the glue nail along its axial direction, so that the glue nail can be stuck in the first sealing ring when it is placed in the first through hole or the second through hole, thereby realizing accurate positioning of the glue nail, and no overturning occurs when moving in the first through hole or the second through hole, which is convenient for the subsequent accurate insertion of the glue nail into the battery shell, which is beneficial to improving the quality of the battery product.

Description

Technical Field

[0001] The present invention relates to the technical field of battery preparation, and in particular to a carrying device and a nail insertion system. Background Art

[0002] With the rapid development of new energy technologies, lithium-ion batteries have been widely used in various electronic devices due to their advantages such as high voltage, high energy, many cycles, and long storage time. Since bubbles are generated in the battery cell after the electrolyte of the lithium-ion battery is injected and formed, it is necessary to first evacuate the inside of the lithium-ion battery to eliminate the bubbles and seal the injection hole with glue nails.

[0003] The inventor of this application has found in long-term research and development that the process of inserting the glue nail can be completed manually, but the manual operation efficiency is low, and the position accuracy of the glue nail insertion is poor, which will affect the quality of the battery. Alternatively, the glue nail can be transported to the glue nail insertion channel through a hose, and then the glue nail is inserted through a push rod, but the glue nail is prone to flipping and misalignment during the transportation process, resulting in the glue nail being unable to be inserted into the battery housing in the correct posture, affecting subsequent processing. Summary of the invention

[0004] The present invention provides a bearing device and a nail insertion system to solve the technical problem in the prior art that the glue nail is difficult to fix, resulting in wrong posture or inaccurate position when inserted into a battery shell.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is to provide a bearing device, comprising:

[0006] A bearing body, wherein the bearing body is formed with a first via hole;

[0007] An end cover, the end cover is disposed on the bearing body, and the end cover is formed with a second through hole communicating with the first through hole;

[0008] A first sealing ring, wherein the first sealing ring is embedded in the bearing body or the end cover, wherein the hole enclosed by the first sealing ring is connected to the first via hole and the second via hole, wherein the inner diameter of the first sealing ring is smaller than the outer diameter of the glue nail, and the diameters of the first via hole and the second via hole are greater than or equal to the outer diameter of the glue nail and are smaller than the length of a diagonal line in a cross section of the glue nail along its axial direction.

[0009] In a specific embodiment, a second sealing ring is provided between the bearing body and the end cover to enhance the sealing between the bearing body and the end cover.

[0010] In a specific embodiment, a third sealing ring is provided at one end of the carrier body away from the end cover, and the third sealing ring is used to abut against the battery housing to enhance the sealing between the carrier body and the battery housing.

[0011] In a specific embodiment, a clearance groove is formed at one end of the supporting body away from the end cover, the third sealing ring is arranged in the clearance groove, the cross-section of the clearance groove along the vertical direction is trapezoidal, and the width of the end of the clearance groove away from the end cover is smaller than the width of the end of the clearance groove close to the end cover.

[0012] In a specific embodiment, a groove is formed on the end surface of the supporting body away from the end cover, a plurality of protrusions are formed in the middle of the groove, the plurality of protrusions are arranged at circumferential intervals along the first through hole, a first air path is formed between two adjacent protrusions, and a first air hole connected to the first air path is formed on the end surface.

[0013] In a specific embodiment, the supporting body is formed with a second gas path channel, one end of the second gas path channel is connected to the first air hole, and the other end is used to communicate with an external exhaust device for extracting gas from the battery shell.

[0014] In a specific embodiment, the carrier body forms a third air path channel, one end of the third air path channel is connected to the first via hole, and the other end is used to connect to an external air blowing device or an external liquid blowing device for cleaning the side wall of the first via hole.

[0015] In order to solve the above technical problems, another technical solution adopted by the present invention is to provide a nail insertion system, comprising:

[0016] A load-bearing device, wherein the load-bearing device is the load-bearing device as described above;

[0017] A push rod device, the push rod device includes a push rod and a driving member, the driving member is used to drive the push rod to extend from the second through hole to abut against the glue nail stuck in the first sealing ring, and further push the glue nail out from the end of the first through hole away from the end cover, and then push it into the injection hole of the battery shell abutting against the end of the supporting body away from the end cover.

[0018] In a specific embodiment, the nail insertion system further includes a buffer clamping mechanism, which is connected between the push rod and the driving member and is used to provide a buffer force and a clamping force between the bearing device and the push rod device during the process of the driving member driving the push rod.

[0019] In a specific embodiment, the buffer pressing mechanism includes:

[0020] A mounting plate connected to the driving member;

[0021] A pressing block, spaced apart from the mounting plate and used for abutting against the bearing body;

[0022] An elastic member, disposed between the mounting plate and the pressing block;

[0023] Wherein, the push rod is connected to the mounting plate and passes through the pressing block.

[0024] The bearing device of the present invention includes a bearing body, an end cover and a first sealing ring, the bearing body is formed with a first through hole, the end cover is covered on the bearing body, and the end cover is formed with a second through hole connected with the first through hole, the first sealing ring is embedded in the bearing body or the end cover, the hole surrounded by the first sealing ring is connected with the first through hole and the second through hole, the inner diameter of the first sealing ring is smaller than the outer diameter of the glue nail, the diameters of the first through hole and the second through hole are greater than or equal to the outer diameter of the glue nail, and are smaller than the length of the diagonal in the cross section of the glue nail along its axial direction, so that the glue nail can be stuck in the first sealing ring when it is placed in the first through hole or the second through hole, thereby realizing the precise positioning of the glue nail, and no flipping will occur when moving in the first through hole or the second through hole, which is convenient for the subsequent accurate insertion of the glue nail into the battery shell, which is beneficial to improving the quality of the battery product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0026] Figure 1 is a schematic cross-sectional structural diagram of an embodiment of a load-bearing device of the present invention;

[0027] Figure 2 It is a schematic cross-sectional structural diagram of a carrying device, a rubber nail, and an adsorption rod in an embodiment of a carrying device of the present invention;

[0028] Figure 3 is a bottom view structural schematic diagram of an embodiment of a carrying device of the present invention;

[0029] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0030] Figure 5 is a schematic diagram of the main structure of an embodiment of a nail insertion system of the present invention;

[0031] Figure 6 is a right side structural schematic diagram of an embodiment of a nail insertion system of the present invention;

[0032] Figure 7 is a schematic flow chart of a nail insertion process in an embodiment of a nail insertion system of the present invention;

[0033] Figure 8 yes Figure 6 Schematic diagram of the cross-sectional structure of the ejector device along the BB direction. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The terms "first" and "second" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices. The term "and / or" is only a kind of association relationship describing associated objects, indicating that three relationships can exist, for example, A and / or B can be represented: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are a kind of "or" relationship.

[0036] See also Figure 1 and Figure 2The embodiment of the carrier device 10 of the present invention includes a carrier body 100, an end cover 200 and a first sealing ring 310. The carrier body 100 is formed with a first through hole 101. The end cover 200 is covered on the carrier body 100, and the end cover 200 is formed with a second through hole 201 connected to the first through hole 101. The first sealing ring 310 is embedded in the carrier body 100 or the end cover 200. The hole surrounded by the first sealing ring 310 is connected to the first through hole 101 and the second through hole 201. The inner diameter of the first sealing ring 310 is smaller than the outer diameter of the rubber nail 20. The first through hole 101 and the second through hole 201 are connected. The diameter of the via hole 201 is greater than or equal to the outer diameter of the glue nail 20, so that the glue nail 20 can be stuck in the first sealing ring 310 when it is placed in the first via hole 101 or the second via hole 201, thereby achieving precise positioning of the glue nail 20, and the diameter of the first via hole 101 and the second via hole 201 is smaller than the length of the diagonal in the cross section of the glue nail 20 along its axial direction, so that the glue nail 20 cannot be placed horizontally or even flipped in the first via hole 101 and the second via hole 201, which facilitates the subsequent accurate insertion of the glue nail 20 into the battery housing (not shown in the figure), which is beneficial to improving the quality of the finished battery.

[0037] In this embodiment, the end cover 200 is formed with a first receiving groove 202 , and the first sealing ring 310 is disposed in the first receiving groove 202 , so that the glue nail 20 can be fixed by the first sealing ring 310 after being sent into the second through hole 201 .

[0038] In this embodiment, the positioning of the glue nail 20 can be achieved by the external adsorption rod 30 carrying the main body 100. Specifically, an adsorption hole (not shown in the figure) is formed in the adsorption rod 30. When the glue nail 20 needs to be positioned, the adsorption rod 30 extends from the bottom of the carrying body 100 into the first through hole 101 and passes through the first through hole 101 and the second through hole 201. The adsorption rod 30 adsorbs the glue nail 20 and drives the glue nail 20 to retract, so that the glue nail 20 enters the second through hole 201 and is stuck in the first sealing ring 310. The adsorption rod 30 continues to retract. Since the adsorption force of the adsorption rod 30 on the glue nail 20 is less than the friction force of the first sealing ring 310 on the glue nail 20, the glue nail 20 will be separated from the adsorption rod 30, and the glue nail 20 is fixed in the first sealing ring 310, completing the positioning process of the glue nail 20.

[0039] In this embodiment, a second sealing ring 320 is arranged between the carrier body 100 and the end cover 200, and a second accommodating groove 102 is formed on the end face of the carrier body 100 close to the end cover 200. The second sealing ring 320 is arranged in the second accommodating groove 102. By setting the second sealing ring 320, the gap between the end cover 200 and the carrier body 100 can be reduced, and the sealing between the carrier body 100 and the end cover 200 can be enhanced, which is convenient for improving the sealing when docking with the battery shell and reducing air leakage.

[0040] In this embodiment, a third sealing ring 330 is provided at one end of the carrier body 100 away from the end cover 200, and a make way groove 103 is formed at one end of the carrier body 100 away from the end cover 200. The third sealing ring 330 is arranged in the make way groove 103. The third sealing ring 330 is used to abut against the battery shell, and can reduce the gap between the carrier body 100 and the battery shell when docking with the battery shell, so as to enhance the sealing between the carrier body 100 and the battery shell and reduce air leakage.

[0041] In this application, the vertical direction is defined as Figure 1 The up and down directions in .

[0042] In this embodiment, the cross-section of the give way groove 103 in the vertical direction is trapezoidal, and the width of the end of the give way groove 103 away from the end cover 200 is smaller than the width of the end of the give way groove 103 close to the end cover 200, and the width of the end of the give way groove 103 away from the end cover 200 is less than or equal to the diameter of the third sealing ring 330, which can prevent the third sealing ring 330 from falling off.

[0043] See also Figure 3 A groove 104 is formed on the end surface of the carrier body 100 away from the end cover 200. The groove 104 can be set in an elliptical shape and can fit with the upper end surface of the battery shell to facilitate positioning of the battery shell and improve the sealing between the carrier body 100 and the battery shell.

[0044] See also Figure 4 In the present embodiment, a plurality of protrusions 110 are formed in the middle of the groove 104, and the plurality of protrusions 110 are arranged in a fan shape and are arranged at intervals along the circumference of the first through hole 101. A first air path 105 is formed between two adjacent protrusions 110, and a first air hole 106 communicating with the first air path 105 is formed on the end surface. A second air path (not shown in the figure) is formed on the carrier body 100, and one end of the second air path is communicated with the first air hole 106, and the other end is used to communicate with an external exhaust device (not shown in the figure) through a first connecting port 107. When the carrier body 100 is docked with the battery shell, the first through hole 101 corresponds to the injection hole of the battery shell, and the protrusion 110 is pressed against the periphery of the injection hole. The external exhaust device is used to extract the gas in the battery shell from the injection hole through the second air path, the first air hole 106 and the first air path 105.

[0045] In this embodiment, the carrier body 100 can be formed with a third air path channel 108, one end of the third air path channel 108 is connected to the first via hole 101, and the other end is used to connect to an external air blowing device or an external liquid blowing device (not shown in the figure) through a second connecting port 109, so as to clean the side wall of the first via hole 101.

[0046] Specifically, impurities such as electrolyte in the first via hole 101 can be blown out by blowing air through an external blowing device, or a cleaning liquid such as DMC (Dimethyl carbonate) can be blown into the first via hole 101 by an external liquid blowing device to clean the side wall of the first via hole 101.

[0047] See also Figures 5 to 7 In the embodiment of the nail driving system of the present invention, the structure of the bearing device 10 is similar to that of the bearing device 10 described above, and will not be described in detail herein.

[0048] In this embodiment, the push rod device 40 includes a push rod 400 and a driving member 510. The driving member 510 is used to drive the push rod 400 to extend from the second through hole 201 to abut against the glue nail 20 clamped in the first sealing ring 310, and further push the glue nail 20 out from the end of the first through hole 101 away from the end cover 200, and then push it into the injection hole of the battery shell abutting against the end of the supporting body 100 away from the end cover 200, thereby completing the insertion process of the glue nail 20.

[0049] In this embodiment, the nail insertion system may further include a driving member 520, which is used to drive the carrier device 10 to move toward or away from the ejector device 40, so as to facilitate the adjustment of the relative positions of the carrier device 10 and the ejector device 40.

[0050] In this embodiment, both the driving member 510 and the driving member 520 can be servo motors, which can make the control more precise.

[0051] In this embodiment, the nail insertion system further includes a buffer clamping mechanism 600, which is connected between the push rod 400 and the driving member 510, and is used to provide a buffer force and a clamping force between the supporting device 10 and the push rod device 40 during the process of the driving member 510 driving the push rod 400, so as to improve the sealing between the supporting device 10 and the push rod device 40.

[0052] In this embodiment, the buffering and clamping mechanism 600 includes a mounting plate 610, a pressure block 620 and an elastic member 630. The mounting plate 610 is connected to the driving member 510. The pressure block 620 and the mounting plate 610 are spaced apart for abutting against the supporting body 100. The elastic member 630 is disposed between the mounting plate 610 and the pressure block 620. The push rod 400 is connected to the mounting plate 610 and passes through the pressure block 620.

[0053] Specifically, before the nail insertion process, the distance between the mounting plate 610 and the pressing block 620 is the largest (eg Figure 7 When inserting the nail, the push rod 400 first contacts the plastic nail 20 and pushes the plastic nail 20 to move in the first through hole 101 (as shown in FIG. Figure 7 Then the pressing block 620 abuts against the end cover 200 of the carrying device 10, and the push rod 400 and the pressing block 620 continue to press down, the elastic member 630 is compressed, the distance between the pressing block 620 and the mounting plate 610 is reduced, and the glue nail 20 continues to move downward (as shown in Figure 7 c), until the glue nail 20 is pushed out of the first through hole 101 and inserted into the injection hole of the battery housing (as shown in FIG. Figure 7 After the nail insertion process is completed, the driving member 510 drives the ejector rod 400 to retract, and the buffer pressing mechanism 600 is reset under the action of the elastic member 630 to facilitate the next nail insertion process.

[0054] In this embodiment, the buffer clamping mechanism 600 may also include a guide rod 640, which passes through the mounting plate 610 and is connected to the pressure block 620. The elastic member 630 may be sleeved on the guide rod 640. By setting the guide rod 640, the movement of the pressure block 620 can be guided, so that the pressure block 620 is more stable during the movement.

[0055] In this embodiment, a fourth sealing ring 621 may be provided on the end surface of the pressing block 620 facing away from the mounting plate 610 , and the fourth sealing ring 621 can abut against the end cover 200 of the carrying device 10 to increase the sealing between the pressing block 620 and the carrying device 10 .

[0056] In this embodiment, a limiting block 650 may be further connected to a side of the guide rod 640 away from the pressing block 620 to limit the guide rod 640 and prevent the guide rod 640 from being separated from the mounting plate 610 .

[0057] In this embodiment, a buffer pad 660 may be further provided between the limiting block 650 and the mounting plate 610 to prevent wear caused by direct contact between the limiting block 650 and the mounting plate 610 .

[0058] In this embodiment, a bearing 670 may be further provided between the guide rod 640 and the mounting plate 610 , which can reduce the friction between the guide rod 640 and the mounting plate 610 and extend the service life of the guide rod 640 and the mounting plate 610 .

[0059] In this embodiment, the buffering and clamping mechanism 600 may further include a first sleeve 681 and a second sleeve 682 which are sleeved outside the elastic member 630, the first sleeve 681 is connected to the mounting plate 610, and the second sleeve 682 is connected to the pressing block 620, and the outer diameter of one of the first sleeve 681 and the second sleeve 682 is less than or equal to the inner diameter of the other, so that when the elastic member 630 is compressed, the first sleeve 681 and the second sleeve 682 can form a mutually nested form. By setting the first sleeve 681 and the second sleeve 682, the guide rod 640 and the elastic member 630 can be protected, and the appearance of the buffering and clamping mechanism 600 can be made more regular.

[0060] The above description is only an implementation mode of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A carrying device, characterized in that: include: A bearing body, wherein the bearing body is formed with a first via hole; An end cover, the end cover is disposed on the bearing body, and the end cover is formed with a second through hole communicating with the first through hole; A first sealing ring, wherein the first sealing ring is embedded in the bearing body or the end cover, the hole surrounded by the first sealing ring is connected with the first through hole and the second through hole, the inner diameter of the first sealing ring is smaller than the outer diameter of the plastic nail, the diameters of the first through hole and the second through hole are greater than or equal to the outer diameter of the plastic nail, and are smaller than the length of a diagonal line in a cross section of the plastic nail along its axial direction; Wherein, a second sealing ring is provided between the bearing body and the end cover to enhance the sealing between the bearing body and the end cover; A third sealing ring is disposed at one end of the bearing body away from the end cover, and the third sealing ring is used to abut against the battery housing to enhance the sealing performance between the bearing body and the battery housing.

2. The carrying device according to claim 1, characterized in that: A clearance groove is formed at one end of the bearing body away from the end cover, and the third sealing ring is arranged in the clearance groove. The cross-section of the clearance groove along the vertical direction is trapezoidal, and the width of the end of the clearance groove away from the end cover is smaller than the width of the end of the clearance groove close to the end cover.

3. The carrying device according to claim 1, characterized in that: A groove is formed on the end surface of the bearing body away from the end cover, a plurality of protrusions are formed in the middle of the groove, the plurality of protrusions are arranged at intervals along the circumference of the first via hole, a first air path is formed between two adjacent protrusions, and a first air hole connected to the first air path is formed on the end surface.

4. The carrying device according to claim 3, characterized in that: The supporting body is formed with a second gas path channel, one end of the second gas path channel is connected to the first air hole, and the other end is used to communicate with an external exhaust device for extracting gas from the battery shell.

5. The carrying device according to claim 1, characterized in that: The bearing body is formed with a third air path channel, one end of the third air path channel is connected to the first via hole, and the other end is used to communicate with an external air blowing device or an external liquid blowing device to clean the side wall of the first via hole.

6. A nail insertion system, characterized in that: include: A carrying device, wherein the carrying device is the carrying device according to any one of claims 1 to 5; A push rod device, the push rod device includes a push rod and a driving member, the driving member is used to drive the push rod to extend from the second through hole to abut against the glue nail stuck in the first sealing ring, and further push the glue nail out from the end of the first through hole away from the end cover, and then push it into the injection hole of the battery shell abutting against the end of the supporting body away from the end cover.

7. The nail insertion system according to claim 6, characterized in that: The nail insertion system further includes a buffer pressing mechanism, which is connected between the push rod and the driving member and is used to provide a buffer force and a pressing force between the bearing device and the push rod device during the process of the driving member driving the push rod.

8. The nail insertion system according to claim 7, characterized in that: The buffer pressing mechanism comprises: A mounting plate connected to the driving member; A pressing block, spaced apart from the mounting plate and used for abutting against the bearing body; An elastic member, disposed between the mounting plate and the pressing block; Wherein, the push rod is connected to the mounting plate and passes through the pressing block.

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