Sealing spike insertion device

Abstract

The application belongs to the technical field of battery manufacturing, and discloses a sealing nail inserting device, which comprises a first positioning mechanism, a pressing piece and a second positioning mechanism. The first positioning mechanism is provided with an inner cavity, a feeding port, a discharging port and a through hole. At least part of the pressing piece is located in the inner cavity, and the pressing piece is slidingly connected to the first positioning mechanism. The pressing piece and the first positioning mechanism are matched with each other to form a containing cavity. The through hole, the feeding port and the discharging port are all communicated with the containing cavity. The through hole is located at one end of the first positioning mechanism away from the pressing piece. The second positioning mechanism is connected with the pressing piece, and is used for extending into or withdrawing from the through hole to correct the position of the sealing nail. The sealing nail inserting device provided by the application has high nail inserting efficiency and nail inserting precision.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to a sealing pin insertion device. Background Technology

[0002] The formation process of a lithium-ion battery refers to the first charging process after the electrolyte is injected into the battery. This process forms a protective film on the surface of the negative electrode, stabilizes the internal chemical system, and filters out defective products. The formation process determines the battery's cycle life, safety, self-discharge rate, and initial efficiency. After formation, a protective film forms inside the battery. This process consumes lithium ions in the battery. Formation pins are then inserted into the injection port using a pin-inserting machine to achieve a seal, preventing electrolyte leakage and the entry of external impurities into the battery.

[0003] In related technologies, the insertion machine includes a mechanical gripper. This gripper can be manually driven or driven by components such as cylinders to move closer to or away from the battery. The mechanical gripper holds the formed plastic staple at the gripping station, then moves to the injection port, aligns it with the injection port, and inserts the formed plastic staple into it. However, in these technologies, aligning the formed plastic staple with the injection port is difficult, resulting in low positioning accuracy and consequently low insertion efficiency. Utility Model Content

[0004] This application provides a sealing pin insertion device to solve the technical problems of low positioning accuracy and low pin insertion efficiency.

[0005] Based on the above concept, the technical solution adopted in this application is:

[0006] The sealing pin insertion device includes:

[0007] The first positioning mechanism is provided with an inner cavity, a feed inlet, a discharge outlet and a through hole;

[0008] The pressing member is at least partially located in the inner cavity and is slidably connected to the first positioning mechanism. The pressing member and the first positioning mechanism cooperate to form a receiving cavity. The through hole, the feed port and the discharge port are all connected to the receiving cavity. The through hole is located at the end of the first positioning mechanism away from the pressing member.

[0009] The second positioning mechanism is connected to the pressing member and is used to extend into or out of the through hole to correct the position of the sealing nail.

[0010] In one or more embodiments of this application, the second positioning mechanism is movably connected to the pressing member. The second positioning mechanism includes a retracted state and an extended state. In the retracted state, the second positioning mechanism extends into the through hole and forms a clamping space. In the extended state, the second positioning mechanism is located outside the through hole.

[0011] The pressing element, under the action of external force, drives the second positioning mechanism to switch between the folded state and the unfolded state; or, the second positioning mechanism, under the action of external force, switches between the folded state and the unfolded state.

[0012] In one or more embodiments of this application, the second positioning mechanism includes two link assemblies, which are arranged opposite to each other in a first direction, and the through hole penetrates the first positioning mechanism along the first direction; the link assembly is provided with a positioning groove, and in the retracted state, the two positioning grooves cooperate with each other to form the clamping space to correct the position of the sealing nail;

[0013] In the retracted state, the two link assemblies converge toward the first positioning mechanism.

[0014] In one or more embodiments of this application, the linkage assembly includes a first linkage, a second linkage, and a sensing element. The length direction of the first linkage is the same as the axial direction of the pressing element. One end of the second linkage is hinged to the first linkage, and the other end of the second linkage is hinged to the pressing element.

[0015] The sensing element is connected to the bottom end of the first connecting rod, and the positioning groove is provided in the sensing element; or, the bottom end of the first connecting rod is connected to a clamping part, the positioning groove is provided in the clamping part, and the sensing element is provided on the inner wall of the positioning groove.

[0016] The sensor is configured to abut against the sealing pin and generate an abutment signal.

[0017] In one or more embodiments of this application, the pressing member is disposed between the two first connecting rods, and the first connecting rods are provided with a limiting portion on the side facing the pressing member;

[0018] And / or,

[0019] In the retracted state, the opposite ends of the two sensors abut against each other.

[0020] In one or more embodiments of this application, the sealing pin insertion device further includes a pressure sensor, and the pressure sensor is provided on the wall of at least one of the positioning grooves.

[0021] In one or more embodiments of this application, the pressing member has a first position and a second position relative to the first positioning mechanism. In the first position, the bottom end of the pressing member is located above the feed inlet, and the second positioning mechanism is in the retracted state. In the second position, the bottom end of the pressing member extends out of the discharge outlet or is flush with the discharge outlet, and the second positioning mechanism is in the extended state. Alternatively, in the second position, the bottom end of the pressing member is located above the feed inlet, and along the axial direction of the first positioning mechanism, the second position is located below the first position.

[0022] In one or more embodiments of this application, the first positioning mechanism includes a positioning cylinder and a positioning block connected to the bottom end of the positioning cylinder. The pressing member is slidably disposed on the positioning cylinder, the feed port is disposed on the positioning cylinder, the discharge port is disposed on the positioning block, and the through hole is disposed on the positioning block, and the axial direction of the through hole intersects with the axial direction of the positioning cylinder.

[0023] In one or more embodiments of this application, the inner cavity includes a first sub-cavity disposed in the positioning cylinder and a second sub-cavity disposed in the positioning block, wherein the inner diameter of the first sub-cavity and the second sub-cavity are the same; or, the inner diameter of the second sub-cavity is smaller than the inner diameter of the first sub-cavity.

[0024] In one or more embodiments of this application, the feed inlet is disposed on the side wall of the first positioning mechanism, and the sealing nail insertion device further includes a discharge cylinder, which is connected to the first positioning mechanism and communicates with the feed inlet. The discharge cylinder is disposed above the feed inlet and is inclined relative to the first positioning mechanism.

[0025] The beneficial effects of this application are:

[0026] The sealing pin insertion device incorporates a first positioning mechanism for coarse positioning of the sealing pin. A pressing member is slidably connected to the first positioning mechanism, and the pressing member and the first positioning mechanism cooperate to form a receiving cavity for accommodating the sealing pin. The sealing pin within the receiving cavity can move to the outlet, which is directly opposite the battery's electrolyte filling port. A second positioning mechanism extends through a through hole and corrects the position of the sealing pin, ensuring that the axis of the sealing pin is perpendicular to the electrolyte filling port. Under external force, the pressing member descends and presses the sealing pin into the electrolyte filling port to seal it. The positioning accuracy of the sealing pin relative to the electrolyte filling port is improved through the positioning of the first and second positioning mechanisms. The pressing member applies force to the sealing pin, resulting in more uniform force distribution on the sealing pin, thereby increasing the success rate and efficiency of insertion. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0028] Figure 1 This is a first structural schematic diagram of the sealing pin insertion device provided in the embodiments of this application;

[0029] Figure 2 This is a front view of the sealing pin insertion device provided in the embodiments of this application;

[0030] Figure 3 This is a first cross-sectional view of the sealing pin insertion device provided in the embodiments of this application;

[0031] Figure 4 This is an exploded view of the sealing pin insertion device provided in the embodiments of this application;

[0032] Figure 5 This is a second sectional view of the sealing pin insertion device provided in the embodiments of this application;

[0033] Figure 6 This is a third sectional view of the sealing pin insertion device provided in the embodiments of this application;

[0034] Figure 7 This is a schematic diagram of the second positioning structure provided in the embodiments of this application when it is in a retracted state;

[0035] Figure 8 This is a second structural schematic diagram of the sealing pin insertion device provided in the embodiments of this application;

[0036] Figure 9 This is a schematic diagram of the third structure of the sealing pin insertion device provided in the embodiments of this application;

[0037] Figure 10 This is a fourth structural schematic diagram of the sealing pin insertion device provided in the embodiments of this application;

[0038] Figure 11 This is a schematic diagram of the structure of the multiple sets of sealing nail insertion devices provided in the embodiments of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. First positioning mechanism; 111. Positioning cylinder; 112. Positioning block; 12. Inner cavity; 121. First sub-cavity; 122. Second sub-cavity; 13. Feed inlet; 14. Discharge outlet; 15. Through hole; 151. Feature hole segment; 16. Accommodating cavity; 2. Pressing component; 3. Second positioning mechanism; 31. Linkage assembly; 311. Positioning groove; 312. First link; 3121. Limiting part; 313. Second link; 314. Sensing component; 315. Clamping space; 4. Discharge cylinder; 5. Driving component; X, First direction; 100. Sealing nail; 200. Battery. Detailed Implementation

[0041] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not all of them.

[0042] It should be understood that the phrase "an embodiment" or "one embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in one embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0046] In the description of this embodiment, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0047] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or it can be located in between the component.

[0048] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0049] This embodiment provides a sealing pin insertion device for inserting sealing pins into the liquid outlet of a battery. It has high positioning accuracy, thereby improving the efficiency and success rate of sealing pin insertion.

[0050] For example, such as Figures 1 to 10 As shown, the sealing pin insertion device includes a first positioning mechanism 1, a pressing member 2, and a second positioning mechanism 3. The first positioning mechanism 1 is used for the initial positioning of the sealing pin 100, which can be understood as coarse positioning of the sealing pin 100. The second positioning mechanism 3 is used for the second positioning of the sealing pin 100, which can also be understood as position correction of the sealing pin 100, ensuring that the sealing pin 100 is aligned with the injection port. The pressing member 2 is used to press the sealing pin 100 into the injection port.

[0051] In at least one embodiment, such as Figure 3As shown, the first positioning mechanism 1 has an inner cavity 12, an inlet 13, an outlet 14, and a through hole 15. The inner cavity 12 accommodates the sealing nail 100. The inlet 13 allows the sealing nail 100 to enter the first positioning mechanism 1 and be initially positioned. The outlet 14 allows the sealing nail 100 to be pressed out of the first positioning mechanism 1. The through hole 15 cooperates with the second positioning mechanism 3 to correct the position of the sealing nail 100. In some embodiments, the through hole 15 is located at the end of the first positioning mechanism 1 furthest from the pressing member 2.

[0052] like Figure 3 and Figure 4 As shown, at least a portion of the pressing member 2 is located in the inner cavity 12 and the pressing member 2 is slidably connected to the first positioning mechanism 1. Figure 5 As shown, the pressing member 2 and the first positioning mechanism 1 cooperate to form a receiving cavity 16, wherein the through hole 15, the feed port 13 and the discharge port 14 are all connected to the receiving cavity 16. With this configuration, the sealing nail 100 entering through the feed port 13 can enter the receiving cavity 16, be guided by the receiving cavity 16, fall to the bottom of the receiving cavity 16 under the action of gravity, and be removed from the discharge port 14 under the action of the second positioning mechanism 3.

[0053] It should be noted that since the pressing member 2 is slidably connected to the first positioning mechanism 1, the size of the receiving cavity 16 formed by the pressing member 2 and the first positioning structure is variable. Specifically, in order to match the structure of the sealing nail 100, the receiving cavity 16 has a long cylindrical structure, and the diameter of the receiving cavity 16 is slightly larger than the maximum radial dimension of the sealing nail 100, so that the sealing nail 100 can fall down along the length of the receiving cavity 16 under the action of gravity. During the process of the pressing member 2 pressing the sealing nail 100, the length of the receiving cavity 16 gradually decreases.

[0054] In this embodiment, the second positioning mechanism 3 is connected to the pressing member 2, enabling the second positioning mechanism 3 to move in conjunction with the pressing member 2. Furthermore, the second positioning mechanism 3 is used to extend into or out of the through hole 15 to correct the position of the sealing nail 100, thereby achieving secondary positioning of the sealing nail 100. It should be noted that the end of the second positioning mechanism 3 that exits the through hole 15 and is away from the pressing member 2 means that the second positioning mechanism 3 is located outside the through hole 15, but not inserted into it. The second positioning mechanism 3 extends into the through hole 15 and can pass through the through hole 15 to extend into the receiving cavity 16, thereby correcting the position of the sealing nail 100. The correction method includes, but is not limited to, clamping the sealing nail 100 so that the sealing nail 100 is aligned with the injection port, and also assisting in determining the orientation of the sealing nail 100.

[0055] The sealing nail insertion device provided in this embodiment can achieve coarse positioning of the sealing nail 100 by setting a first positioning mechanism 1. The pressing member 2 is slidably connected to the first positioning mechanism 1, and the pressing member 2 and the first positioning mechanism 1 cooperate to form a receiving cavity 16 for accommodating the sealing nail 100. The sealing nail 100 in the receiving cavity 16 can move to the discharge port 14, which is directly opposite the liquid injection port of the battery 200. The second positioning mechanism 3 extends through the through hole 15 and corrects the position of the sealing nail 100 so that the axial direction of the sealing nail 100 is perpendicular to the liquid injection port. The pressing member 2 descends under the action of external force and presses the sealing nail into the liquid injection port to seal the liquid injection port. Through the positioning of the first positioning mechanism 1 and the second positioning mechanism 3, the positioning accuracy of the sealing nail 100 relative to the liquid injection port can be improved. The pressing member 2 applies force to the sealing nail 100 so that the sealing nail 100 is subjected to more uniform force, thereby improving the success rate of nail insertion and also improving the nail insertion efficiency.

[0056] In at least one possible implementation, the second positioning mechanism 3 is movably connected to the pressing member 2, and the second positioning mechanism 3 includes a retracted state and an extended state. Figure 2 and Figure 5 This is a schematic diagram of the second positioning mechanism 3 in the deployed state. Figure 6 , Figure 7 and Figure 9 This is a schematic diagram of the second positioning mechanism 3 in the retracted state. When in the retracted state, the second positioning mechanism 3 extends into the through hole 15 and forms a clamping space 315 (e.g., ...). Figure 8 or Figure 10 As shown), the clamping space 315 is used to clamp the sealing nail 100, thereby realizing the position correction and secondary positioning of the sealing nail 100. When the second positioning mechanism 3 is in the unfolded state, the second positioning mechanism 3 is located outside the through hole 15, that is, the second positioning mechanism 3 is out of the through hole 15 and no longer clamps the sealing nail 100, so that the pressing member 2 can smoothly press the sealing nail 100 into the injection port.

[0057] In one embodiment, the pressing member 2, under the action of external force, drives the second positioning mechanism 3 to switch between a retracted state and an extended state. The pressing member 2 slides relative to the first positioning mechanism 1 under the action of external force, thereby driving the second positioning mechanism 3 to actuate. When it is necessary to insert the sealing nail 100 into the receiving cavity 16, the pressing member 2... Figure 5 The device moves upwards in the indicated orientation. This activates the second positioning mechanism 3, causing it to gradually move from an extended state to a retracted state. Simultaneously, the sealing nail 100 is placed into the receiving cavity 16, allowing the second positioning mechanism 3 to extend into the through hole 15 and form a clamping space 315 to hold the sealing nail 100. The second positioning mechanism 3 is then in the retracted state. When the sealing nail 100 needs to be pressed, the pressing member 2... Figure 6The device moves downward in the indicated direction, and at the same time, it drives the second positioning mechanism 3 to move from the retracted state to the unfolded state, so that the second positioning mechanism 3 releases the sealing nail 100. This ensures that when the pressing member 2 presses the sealing nail 100, the sealing nail 100 is not subjected to any other external force, and its position and posture are correct, which facilitates efficient nail insertion.

[0058] In other embodiments, the second positioning mechanism 3 can also directly switch between the retracted state and the unfolded state under the action of external force, and when the second positioning mechanism 3 is activated, it can drive the pressing member 2 to slide relative to the first positioning mechanism 1. This embodiment does not limit this.

[0059] The second positioning mechanism 3 can have various specific structures. This embodiment provides an example of a second positioning mechanism 3.

[0060] In at least one embodiment, such as Figure 4 As shown, the second positioning mechanism 3 includes two link assemblies 31. The two link assemblies 31 are arranged opposite each other in the first direction X. A through hole 15 penetrates the first positioning mechanism 1 along the first direction X; that is, the through hole 15 is divided into two sections by the receiving cavity 16. Specifically, the through hole 15 includes two characteristic hole sections 151 located on both sides of the receiving cavity 16, and the two characteristic hole sections 151 are arranged opposite each other in the first direction X. The two link assemblies 31 correspond one-to-one with the two characteristic hole sections 151, and each link assembly 31 can extend into or retract from its corresponding characteristic hole section 151. It should be noted that the first direction X is one of the horizontal directions.

[0061] In some embodiments, such as Figure 4 As shown, each link assembly 31 is provided with a positioning groove 311, and the part of the link assembly 31 with the positioning groove 311 can extend into the through hole 15. Furthermore, when the second positioning mechanism 3 is in the retracted state, the two positioning grooves 311 cooperate with each other to form a clamping space 315 for clamping the sealing nail 100, so as to correct the position of the sealing nail 100.

[0062] In at least one embodiment, such as Figure 8 As shown, the clamping space 315 may not be a circumferentially enclosed space; in this case, the two positioning grooves 311 do not completely surround the sealing pin 100 circumferentially. In some other embodiments, such as Figure 10As shown, the clamping space 315 is a circumferentially enclosed space. At this time, the two positioning grooves 311 completely surround the sealing nail 100 circumferentially. It can be seen that by setting two connecting rod assemblies 31, the size of the formed clamping space 315 is more flexible, thereby allowing the sealing nail insertion device to be used for sealing nails 100 of different sizes. Of course, it is understood that the maximum diameter of the sealing nail 100 should be smaller than the inner diameter of the receiving cavity 16, and the minimum diameter of the sealing nail 100 should be larger than the diameter of the clamping space 315 formed when the two connecting rod assemblies 31 abut in the receiving cavity 16, so as to ensure that the sealing nail 100 can move smoothly in the receiving cavity 16 and be smoothly clamped in the clamping space 315.

[0063] In some alternative implementations, the second positioning mechanism 3, in the retracted state, such as Figure 6 As shown, the two linkage assemblies 31 converge toward the first positioning mechanism 1, while the position of the first positioning mechanism 1 in the horizontal direction remains unchanged. This ensures that after the first positioning mechanism 1 is aligned with the injection port, the movement of the second positioning mechanism 3 does not affect the position of the first positioning mechanism 1, thus ensuring that the sealing nail 100 coming out of the discharge port 14 is aligned with the injection port.

[0064] In one or more of these embodiments, this embodiment provides a linkage assembly 31, such as Figure 4 As shown, the linkage assembly 31 includes a first link 312, a second link 313, and a sensing element 314. The length direction of the first link 312 is the same as the axial direction of the pressing member 2. One end of the second link 313 is hinged to the first link 312, and the other end is hinged to the pressing member 2. In this embodiment, the pressing member 2 slides relative to the first positioning mechanism 1 in the vertical direction. When the pressing member 2 moves in the vertical direction, it can drive the first link 312 to move in the first direction X via the second link 313, so that the two first links 312 move closer or further apart in the first direction X. When the two first links 312 move closer together, they both converge towards the first positioning mechanism 1.

[0065] It should be noted that the hinge in this embodiment is a rotational connection. In some embodiments, the hinge between the second link 313 and the first link 312, as well as the hinge between the second link 313 and the pressing member 2, can be achieved by a pivot shaft, or by other components. This embodiment does not limit this.

[0066] In this embodiment, the sensor 314 is configured to abut against the sealing nail 100 and generate an abutment signal. This allows the sensor 314 to detect whether the sealing nail 100 is clamped in the clamping space 315, and also to detect whether the position and orientation of the sealing nail 100 are correct. If the position or orientation of the sealing nail 100 is incorrect, the sealing nail 100 may fail to contact the sensor 314. In this case, the sensor 314 cannot generate a sensing signal, and the position of the sealing nail 100 needs to be adjusted or a new sealing nail 100 needs to be placed to ensure the success rate and efficiency of the nail insertion.

[0067] It should be noted that the sensing element 314 in this embodiment can be a contact sensor, such as the KEYENCE GT series or Panasonic HG-S series. This embodiment does not limit this, as long as it has the corresponding function.

[0068] In some embodiments, please continue to see Figure 4 The sensing element 314 is connected to the bottom end of the first connecting rod 312, and the sensing element 314 extends into or out of the through hole 15. A positioning groove 311 is provided in the sensing element 314, for example, the positioning groove 311 is provided on the end face of one end of the sensing element 314. The sensing elements 314 of the two connecting rod assemblies cooperate with each other to form a clamping space 315 to clamp the sealing nail 100.

[0069] In other embodiments, the bottom end of the first connecting rod 312 may also be connected to a clamping part, which can extend into or retract from the through hole 15. A positioning groove 311 is disposed on the end face of one end of the clamping part, and a sensing element 314 is disposed on the inner wall of the positioning groove 311. The clamping parts of the two connecting rod assemblies cooperate with each other to form a clamping space 315 for clamping the sealing nail 100, and the clamping space 315 is also provided with a sensing element 314 to facilitate sensing the sealing nail 100. In some optional embodiments, the inner wall of one of the positioning grooves 311 may be provided with a sensing element 314, or the inner walls of both positioning grooves 311 may be provided with a sensing element 314. This embodiment does not limit this.

[0070] Both of the above structures can clamp the sealing nail 100 and sense the position and orientation of the sealing nail 100. The specific choice can be made according to actual needs.

[0071] In at least one possible implementation, when the sensing element 314 is connected to the bottom end of the first connecting rod 312, in the retracted state, such as Figure 10 As shown, the opposite ends of the two sensing elements 314 abut against each other, thereby forming a circumferentially closed clamping space 315.

[0072] In one or more embodiments of this application, the sealing pin insertion device may further include a pressure sensor. At least one positioning groove 311 has a pressure sensor on its groove wall. When the sealing pin 100 is clamped in the clamping space 315, the pressure sensor will sense the pressure applied by the sealing pin 100 and generate a pressure signal. If the sealing pin 100 is not clamped, the pressure sensor will not generate a pressure signal. Therefore, based on the pressure signal, it can be determined whether the sealing pin 100 is clamped and fixed, and thus determine whether the position and orientation of the sealing pin 100 are correct.

[0073] The pressure sensor and the aforementioned sensing element 314 can coexist, or only one of them can exist; this embodiment does not limit this. When both the pressure sensor and the sensing element 314 exist and are both disposed on the wall of the positioning groove 311, the pressure sensor and the sensing element 314 are spaced apart.

[0074] In some embodiments, such as Figure 9 As shown, the first positioning mechanism 1 is located between two first connecting rods 312. Each first connecting rod 312 has a limiting part 3121 on the side facing the pressing member 2. The limiting part 3121 is used to limit the minimum distance between the first connecting rod 312 and the pressing member 2 to avoid the problem of the sensing member 314 being damaged due to excessive movement, thereby improving the reliability of the sealing pin insertion device. For example, as Figure 9 As shown, the limiting part 3121 is specifically a protrusion that can abut against the pressing part, thereby achieving the limiting between the first link 312 and the pressing part.

[0075] In one or more embodiments of this application, the pressing member 2 has a first position and a second position relative to the first positioning mechanism 1. Figure 6 and Figure 7 This is a schematic diagram of the pressing member 2 in the first position. In the first position, the bottom end of the pressing member 2 is above the feed inlet 13, so that the pressing member 2 does not obstruct the sealing nail 100 from entering the receiving cavity 16 from the feed inlet 13. Furthermore, the second positioning mechanism 3 is in a retracted state at this time, and the sealing nail 100, after entering the receiving cavity 16, can be clamped in the clamping space 315 by the two connecting rod assemblies. In the second position, the bottom end of the pressing member 2 extends out of or is flush with the discharge port 14, thereby pressing the sealing nail 100 into the injection port to achieve nail insertion. Furthermore, the second positioning mechanism 3 is in an extended state at this time, thus not affecting the nail pressing process of the pressing member 2.

[0076] It should be noted that the first position is not a fixed position; any position where the bottom end of the pressing member 2 is located above the inlet 13 can be called the first position. Furthermore, the second position is not a fixed position either; it will vary depending on the length of the sealing pin 100. It only needs to be able to press the sealing pin 100 into the injection port; this embodiment does not impose any limitations on this.

[0077] In other possible implementations, in the second position, the bottom end of the pressing member 2 can also be located above the discharge port 14 and along the axial direction of the first positioning mechanism 1, with the second position located below the first position. That is, the pressing member 2 can press the sealing nail 100 into the injection port without extending out of the discharge port 14, and the length of the sealing nail 100 extending into the injection port can be satisfied. In other words, the length of the sealing nail 100 can be relatively long, so that it can be pressed into place even without the pressing member 2 extending out of the discharge port 14.

[0078] In at least one embodiment, such as Figure 3 As shown, the feed inlet 13 is located on the side wall of the first positioning mechanism 1. The top of the first positioning mechanism 1 is used to mount the pressing member 2, and the bottom is used to mount the discharge outlet 14. Therefore, the feed inlet 13 is located on the side wall of the first positioning mechanism 1. Furthermore, as... Figure 2 As shown, the sealing nail insertion device also includes a feeding cylinder 4, which is connected to the first positioning mechanism 1 and communicates with the feed inlet 13. The sealing nail 100 is placed into the receiving cavity 16 through the feeding cylinder 4 and the feed inlet 13. The axial direction of the sealing nail 100 in the feeding cylinder 4 can be parallel or coincident with the axial direction of the feeding cylinder 4, which reduces the difficulty of placing the sealing nail 100, facilitates operation, and eliminates the need to spend time deliberately adjusting the posture of the sealing nail 100, further improving the nail insertion efficiency.

[0079] In some embodiments, the discharge cylinder 4 is disposed above the feed inlet 13 and is inclined relative to the first positioning mechanism 1. With this arrangement, the sealing nail 100 in the discharge cylinder 4 moves towards the feed inlet 13 under the action of gravity and falls into the receiving cavity 16. The discharge cylinder 4 can also guide the movement of the sealing nail 100, ensuring the direction of movement of the sealing nail 100 and preventing the sealing nail 100 from getting stuck or turning during the movement, so as to ensure that the posture of the sealing nail 100 reaching the discharge outlet 14 is correct as much as possible.

[0080] In some alternative embodiments, such as Figure 4 and Figure 5As shown, the first positioning mechanism 1 includes a positioning cylinder 111 and a positioning block 112 connected to the bottom end of the positioning cylinder 111. The pressing member 2 is slidably disposed on the positioning cylinder 111, the inlet 13 is disposed on the positioning cylinder 111, the outlet 14 is disposed on the positioning block 112, and the through hole 15 is disposed on the positioning block 112, with the axial direction of the through hole 15 intersecting the axial direction of the positioning cylinder 111. By setting the positioning block 112, the length of the through hole 15 can be relatively long, allowing the sensing member 314 or the clamping part to be better guided when sliding in the through hole 15, thereby ensuring that the two connecting rod assemblies move along the first direction X, reducing the problem of not being able to form the clamping space 315 due to tilting. Furthermore, the design of the positioning block 112 provides a larger contact area between the first positioning mechanism 1 and the battery 200, thereby improving the stability of the entire sealing nail insertion device, facilitating the alignment of the outlet 14 and the injection port, improving alignment accuracy, and further improving the accuracy and success rate of nail insertion. The positioning cylinder 111 is designed to facilitate the initial positioning and guidance of the sealing nail 100, allowing the sealing nail 100 to move smoothly to the discharge port 14. In this embodiment, the discharge port 14 is located on the side wall of the positioning cylinder 111, and the feeding cylinder 4 is connected to the positioning cylinder 111. Optionally, the feeding cylinder 4 and the positioning cylinder 111 can be an integral structure.

[0081] In some embodiments, such as Figure 6 As shown, the inner cavity 12 includes a first sub-cavity 121 located in the positioning cylinder 111 and a second sub-cavity 122 located in the positioning block 112. The inner diameters of the first sub-cavity 121 and the second sub-cavity 122 are the same. This avoids the problem of the sealing pin 100 getting stuck due to the difference in inner diameter, and improves the smoothness of the movement of the sealing pin 100. It should be noted that the through hole 15 communicates with the second sub-cavity 122, the discharge port 14 communicates with the second sub-cavity 122, and the inlet port 13 communicates with the first sub-cavity 121.

[0082] In other embodiments, the inner diameter of the second sub-cavity 122 is smaller than the inner diameter of the first sub-cavity 121. This configuration allows the sealing pin 100 to be further positioned when the first sub-cavity 121, with its relatively larger inner diameter, enters the second sub-cavity 122, with its relatively smaller inner diameter, thereby making the positioning of the sealing pin 100 more accurate.

[0083] Optionally, the sealing pin insertion device may further include a drive component 5, which is connected to the pressing component 2 and is used to drive the pressing component 2 to move in the vertical direction to achieve automatic pin insertion. The drive component 5 includes, but is not limited to, a cylinder, a linear motor, etc.

[0084] In this embodiment, the sealing nail insertion device can be provided in multiple sets, thereby enabling the insertion of multiple batteries 200 and improving work efficiency.

[0085] When the sealing nail insertion device provided in this embodiment is in use, the sealing nail 100 flows in from the discharge cylinder 4, passes through the inlet 13 and enters the first sub-cavity 121, which can also be understood as entering the receiving cavity 16. The driving member 5 drives the pressing member 2 to press down the sealing nail 100 so as to insert the sealing nail 100 into the liquid injection port of the battery 200.

[0086] More specifically, the operation process is as follows: the sealing nail 100 flows into the discharge cylinder 4 and reaches the positioning block 112. The sensing element 314 senses the sealing nail 100 and sends back an abutment signal to indicate that the sealing nail 100 is in place. Then, the cylinder drives the pressing element 2 to press down. The pressing element 2 is hinged to the second connecting rod 313, and the second connecting rod 313 is hinged to the first connecting rod 312, thereby causing the first connecting rod 312 to move away from the positioning cylinder 111. The sensing element 314 exits the through hole 15 on the positioning block 112, and the second positioning mechanism 3 is in the unfolded state. The pressing element 2 moves further under the drive of the cylinder to press the sealing nail 100 down to press it into the injection port.

[0087] In some embodiments, when the sealing pin insertion device is not in operation, and there is no sealing pin 100, the opposite ends of the two sensing elements 314 contact each other, forming a circular clamping space 315, or a circular hole. This circular hole can just hold the sealing pin 100, achieving the purpose of secondary positioning. When in operation, the sealing pin 100 is pressed down, and the two sensing elements 314 will move outward without affecting the pin pressing.

[0088] Optionally, the sensor 314 can also detect whether the sealing nail 100 is in the wrong orientation, such as being placed backwards. For example, if the sealing nail 100 is placed backwards, the larger end of the sealing nail 100 is facing upwards. At this time, the sealing nail 100 cannot be inserted into the circular clamping space 315 (or circular hole). The sensor 314 cannot detect the sealing nail 100 and can then issue an alarm to inform that the sealing nail 100 is placed backwards.

[0089] The sealing nail insertion device provided in this embodiment can effectively improve production efficiency and capacity, and further improve positioning accuracy and nail insertion success rate, while reducing failure rate. In addition, the pressing component 2 can be driven by components such as cylinders and motors, thereby saving labor costs and eliminating the need for additional adjustment of the position of the sealing nail 100.

[0090] Obviously, the above embodiments of this application are merely examples for clear illustration and are not intended to limit the implementation of this application. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A sealing pin insertion device, characterized in that, include: The first positioning mechanism (1) is provided with an inner cavity (12), a feed inlet (13), a discharge outlet (14) and a through hole (15). The pressing member (2) is at least partially located in the inner cavity (12) and is slidably connected to the first positioning mechanism (1). The pressing member (2) and the first positioning mechanism (1) cooperate to form a receiving cavity (16). The through hole (15), the feed port (13) and the discharge port (14) are all connected to the receiving cavity (16). The through hole (15) is located at the end of the first positioning mechanism (1) away from the pressing member (2). The second positioning mechanism (3) is connected to the pressing member (2) and is used to extend into or out of the through hole (15) to correct the position of the sealing nail (100).

2. The sealing pin insertion device according to claim 1, characterized in that, The second positioning mechanism (3) is movably connected to the pressing member (2). The second positioning mechanism (3) includes a retracted state and an unfolded state. In the retracted state, the second positioning mechanism (3) extends into the through hole (15) and forms a clamping space (315). In the unfolded state, the second positioning mechanism (3) is located outside the through hole (15). The pressing member (2) drives the second positioning mechanism (3) to switch between the folded state and the unfolded state under the action of external force; or, the second positioning mechanism (3) switches between the folded state and the unfolded state under the action of external force.

3. The sealing pin insertion device according to claim 2, characterized in that, The second positioning mechanism (3) includes two link assemblies (31), which are arranged opposite each other in a first direction (X). The through hole (15) passes through the first positioning mechanism (1) along the first direction (X). The link assembly (31) is provided with a positioning groove (311). In the retracted state, the two positioning grooves (311) cooperate with each other to form the clamping space (315) to correct the position of the sealing nail (100). In the retracted state, the two link assemblies (31) converge toward the first positioning mechanism (1).

4. The sealing pin insertion device according to claim 3, characterized in that, The linkage assembly (31) includes a first link (312), a second link (313), and a sensor (314). The length direction of the first link (312) is the same as the axial direction of the pressing member (2). One end of the second link (313) is hinged to the first link (312), and the other end of the second link (313) is hinged to the pressing member (2). The sensing element (314) is connected to the bottom end of the first connecting rod (312), and the positioning groove (311) is provided on the sensing element (314); or, the bottom end of the first connecting rod (312) is connected to a clamping part, the positioning groove (311) is provided on the clamping part, and the sensing element (314) is provided on the inner wall of the positioning groove (311). The sensing element (314) is configured to abut against the sealing pin (100) and generate an abutment signal.

5. The sealing pin insertion device according to claim 4, characterized in that, The pressing member (2) is disposed between the two first connecting rods (312), and the first connecting rod (312) has a limiting part (3121) on the side facing the pressing member (2). And / or, In the retracted state, the opposite ends of the two sensors (314) abut against each other.

6. The sealing pin insertion device according to claim 3, characterized in that, The sealing pin insertion device also includes a pressure sensor, and the pressure sensor is provided on the wall of at least one of the positioning grooves (311).

7. The sealing pin insertion device according to any one of claims 2-6, characterized in that, The pressing member (2) has a first position and a second position relative to the first positioning mechanism (1). In the first position, the bottom end of the pressing member (2) is above the feed inlet (13), and the second positioning mechanism (3) is in the retracted state. In the second position, the bottom end of the pressing member (2) extends out of the discharge outlet (14) or is flush with the discharge outlet (14), and the second positioning mechanism (3) is in the unfolded state. Alternatively, in the second position, the bottom end of the pressing member (2) is above the discharge outlet (14), and along the axial direction of the first positioning mechanism (1), the second position is below the first position.

8. The sealing pin insertion device according to any one of claims 1-6, characterized in that, The first positioning mechanism (1) includes a positioning cylinder (111) and a positioning block (112) connected to the bottom end of the positioning cylinder (111). The pressing member (2) is slidably disposed on the positioning cylinder (111). The feed port (13) is disposed on the positioning cylinder (111). The discharge port (14) is disposed on the positioning block (112). The through hole (15) is disposed on the positioning block (112), and the axial direction of the through hole (15) intersects with the axial direction of the positioning cylinder (111).

9. The sealing pin insertion device according to claim 8, characterized in that, The inner cavity (12) includes a first sub-cavity (121) disposed in the positioning cylinder (111) and a second sub-cavity (122) disposed in the positioning block (112). The inner diameters of the first sub-cavity (121) and the second sub-cavity (122) are the same; or, the inner diameter of the second sub-cavity (122) is smaller than the inner diameter of the first sub-cavity (121).

10. The sealing pin insertion device according to any one of claims 1-6, characterized in that, The feed inlet (13) is located on the side wall of the first positioning mechanism (1). The sealing nail insertion device also includes a discharge cylinder (4). The discharge cylinder (4) is connected to the first positioning mechanism (1) and communicates with the feed inlet (13). The discharge cylinder (4) is located above the feed inlet (13) and is inclined relative to the first positioning mechanism (1).

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