Plug pin device, plug pin equipment and plug pin method

Abstract

The embodiment of the invention provides a plug pin device, plug pin equipment and a plug pin method, and the plug pin device comprises a plug pin assembly which is used for making contact with a to-be-plugged pin; a mounting groove is formed in the transmission part, at least part of the plug pin assembly extends into the mounting groove and is connected with the groove wall of the mounting groove in a sliding and sealing mode, a gas storage cavity used for storing gas is formed between the plug pin assembly and the mounting groove, and the transmission part is configured to move under driving of external force so as to drive the plug pin assembly to push the to-be-plugged pin to move; the sensor is used for detecting the real-time pressure in the gas storage cavity; wherein the plug pin assembly is configured to slide along the groove wall of the mounting groove under the driving of reverse thrust generated when the plug pin moves so as to change the size of the gas storage cavity, so that the plug pin condition is directly detected in the plug pin process, and an additional detection station does not need to be added.

Description

Technical Field

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

[0002] In the existing nailing device, a motor directly drives a nailing rod to squeeze the plastic nail, and presses the plastic nail into the liquid injection hole on the battery cell, so that the plastic nail seals the liquid injection hole.

[0003] During the nailing process, if there is a deviation between the battery position and the position of the glue nail, or the glue nail is over-inserted, or there is a lack of glue nails, it will cause abnormal nailing. After the abnormal nailing occurs, the existing nailing device cannot detect it in time, and additional inspection stations need to be added to inspect the battery cells after nailing, which makes the process more complicated. Summary of the Invention

[0004] The embodiments of the present application provide a nailing device, a nailing apparatus, and a nailing method, so as to achieve the effect of detecting the nailing condition in real time during the nailing process.

[0005] In a first aspect, an embodiment of the present application provides a nail inserting device, comprising:

[0006] A plugging nail assembly, used for contacting the plugging nail and pushing the plugging nail to move;

[0007] A transmission member, wherein a mounting groove is provided on the transmission member, the nail assembly at least partially extends into the mounting groove and is slidably and sealingly connected to the groove wall of the mounting groove, and a gas storage chamber for storing gas is formed between the nail assembly and the mounting groove, and the transmission member is configured to move under the drive of an external force to drive the nail assembly to push the nail to be inserted to move;

[0008] A sensor for detecting the real-time pressure in the air storage chamber;

[0009] The nail assembly is configured to be driven by the reverse thrust generated when the nail to be inserted moves, and to slide along the groove wall of the installation groove to change the size of the air storage cavity.

[0010] In a possible embodiment, the nail assembly includes a piston and a nail rod, one end of the nail rod is connected to the piston, the piston is located in the mounting groove, and is slidingly and sealingly connected to the mounting groove to form the air storage chamber between the piston and the mounting groove.

[0011] In a possible embodiment, a cover plate is provided at the open end of the mounting slot, and the end of the nail rod extends through the cover plate to outside the mounting slot, and the cover plate is configured to allow the nail rod to slide only along the extension direction of the mounting slot.

[0012] In a possible embodiment, a limiting hole is provided on the cover plate, and the limiting hole is a polygonal hole or a curved polygonal hole. The pin rod is inserted into the limiting hole, and the shape of the pin rod is adapted to the shape of the limiting hole.

[0013] In a possible embodiment, a reset member is provided in the installation groove, and the reset member is configured to drive the nail assembly to reset after the nail rod is separated from the nail to be inserted, so as to restore the air storage cavity to an initial size.

[0014] In a possible embodiment, the reset member is an elastic member, which is located on the side of the piston away from the air storage chamber, one end of the elastic member is connected to the piston, and the other end is connected to the groove wall of the installation groove or the cover plate.

[0015] In a possible embodiment, a guide member is further included, which is located on the side of the nail rod away from the air storage chamber. A guide hole is provided on the guide member, and the guide hole is used for inserting the nail to be inserted. The guide hole is coaxially arranged with the nail rod.

[0016] In a possible implementation manner, an adapter is rotatably provided on the transmission member, and the adapter is connected to the air storage chamber and the air supply device through an air pipe.

[0017] In a possible implementation, the sensor is a pressure gauge, and the pressure gauge is connected to the air storage chamber or the air pipe.

[0018] In a second aspect, an embodiment of the present application provides a nailing device, comprising a drive assembly and at least one nailing device as described in any one of the first aspects, wherein the drive assembly is in transmission connection with the transmission member, and the drive assembly is configured to drive the transmission member to move and rotate.

[0019] In a possible embodiment, the nailing device is provided with at least two;

[0020] The driving assembly includes a driving member and a transmission assembly. The driving member is connected to all the transmission members through the transmission assembly to drive all the transmission members to move and rotate synchronously.

[0021] In a third aspect, an embodiment of the present application provides a nailing method, comprising:

[0022] The driving assembly drives the transmission member to move so that the distance between the nail assembly and the nail to be inserted reaches a preset value;

[0023] The driving assembly drives the transmission member to move and rotate at the same time, so that the nail assembly pushes the nail to be inserted into the nail hole, and the real-time pressure in the air storage chamber is continuously obtained through the sensor;

[0024] If the real-time pressure does not meet the preset pressure range, it is marked as abnormal.

[0025] In a possible implementation manner, before the driving assembly drives the transmission member to move so that the distance between the nail assembly and the nail to be inserted reaches a preset value, the method further includes:

[0026] Obtaining the real-time pressure of the air storage chamber through the sensor, and determining whether the real-time pressure meets a preset condition;

[0027] If not, adjusting the amount of gas in the gas storage chamber;

[0028] If the real-time pressure still cannot meet the preset condition after adjusting the gas volume in the gas storage chamber, an alarm is issued;

[0029] If the real-time pressure meets the preset condition, the transmission member is driven to move.

[0030] In one possible implementation, the marking of nail abnormality includes:

[0031] If the real-time pressure is less than the lower limit of the preset pressure range, a nail missing abnormality is marked;

[0032] If the real-time pressure is greater than the upper limit of the preset pressure range, an over-blocking or oblique blockage abnormality is marked.

[0033] In a possible embodiment, the nailing device includes at least two nailing devices, and after marking the nailing abnormality, further includes:

[0034] If the real-time pressure is greater than the upper limit of the preset pressure range, reducing the amount of gas in the gas storage chamber;

[0035] The driving component drives the transmission member to continue to move and rotate until it reaches a preset nail insertion completion position.

[0036] In the nailing device, nailing equipment, and nailing method provided in the embodiments of the present application, the nailing device is provided with a sensor, a nailing assembly, and a transmission member. The nailing assembly at least partially extends into the mounting slot on the transmission member, and an air storage chamber is formed between the nailing assembly and the mounting slot. The air storage chamber is filled with gas. When an external force drives the transmission member to move, it can drive the nailing assembly to push the nail to be inserted to move, completing the nailing operation. During this process, the nailing assembly is subjected to the reaction force generated by the nailing, moving toward the mounting slot, causing the volume of the air storage chamber to change accordingly, resulting in a corresponding change in the air pressure within the air storage chamber. At the same time, the sensor can obtain the real-time pressure within the air storage chamber. If the real-time pressure is too low, it can be determined that the reaction force exerted by the nail to be inserted on the nailing assembly is small, indicating that the nailing is abnormal. If the real-time pressure is too high, it can be determined that the nail to be inserted may be tilted or over-inserted, indicating that the nailing is abnormal. Therefore, the nailing device can determine whether the nail is normal during the nailing process and directly sort good and bad products. This eliminates the need for further inspection after the nailing, effectively improving the convenience of nailing. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0038] Figure 1 A schematic structural diagram of a first embodiment of a nailing device provided in an embodiment of the present application;

[0039] Figure 2 A schematic structural diagram of a second embodiment of the nail plugging device provided in an embodiment of the present application;

[0040] Figure 3 A top view of a transmission member of a nail plugging device provided in an embodiment of the present application;

[0041] Figure 4 A top view of a staple assembly of a staple device provided in an embodiment of the present application;

[0042] Figure 5 A schematic structural diagram of a cover plate of a nail inserting device according to an embodiment of the present application;

[0043] Figure 6 Schematic diagram of the process of the nailing method provided in the embodiment of the present application Figure 1 ;

[0044] Figure 7 Schematic diagram of the process of the nailing method provided in the embodiment of the present application Figure 2 .

[0045] Reference numerals:

[0046] 100-pin assembly; 110-pin rod; 120-piston;

[0047] 200- transmission part; 210- mounting slot; 220- air storage chamber; 230- adapter; 240- air pipe; 250- cover plate; 251- limiting hole;

[0048] 300-sensor;

[0049] 400-reset component;

[0050] 500-guide piece; 510-guide hole.

[0051] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0052] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0053] At present, the battery cell nailing is generally divided into one work station, and the nailing result is detected at the next work station, that is, the process from nailing to sorting good and defective products after nailing needs to be carried out in two steps.

[0054] An existing nailing device includes a sleeve, an elastic member, a first nailing rod and a second nailing rod. The elastic member is arranged in the sleeve. Part of the first nailing rod and part of the second nailing rod are arranged in the sleeve and respectively abut against the two ends of the elastic member. The second nailing rod corresponds to the rubber nail.

[0055] During operation, the first nail rod and the second nail rod rotate and descend synchronously through the sleeve, and the second nail rod is buffered by the elastic part to avoid over-insertion due to abnormal glue nails, while also taking into account the nailing efficiency. The nailing device will drive multiple nail rods to insert nails at the same time, and the insertion depth can be adjusted to a limited extent to increase the yield of glue nail insertion on each battery.

[0056] However, it cannot provide real-time feedback on the status of the nail during the nailing process, thus it cannot avoid: over-stuck or deflected battery position deviation during the nailing process, and cannot provide real-time feedback on the failure of the nail to be inserted or missed nailing, resulting in a large amount of product waste. Specifically, it has at least the following defects:

[0057] 1) If the abnormality of nail insertion is caused by equipment problems, the abnormality will not be discovered until the subsequent nail insertion detection station is tested, resulting in abnormal cells at more than two stations and a large number of defects;

[0058] 2) After the battery nail is abnormal, the abnormality will be discovered during the subsequent nail detection station inspection, that is, additional inspection stations are needed;

[0059] 3) Damage to the battery cell filling hole caused by over-insertion or crooked pins cannot be repaired and the corresponding battery cell can only be scrapped.

[0060] In order to avoid the above problems, the embodiment of the present application provides a nailing device that can be installed in the nailing equipment and used in conjunction with the corresponding nailing method for nailing. During the nailing process, the nailing pressure of the battery cell can be monitored in real time through the sensor, and the nailing pressure is controllable. At the same time, when nailing multiple batteries at the same time, the nailing effect of all battery cells can be made the same, and the nailing status can be judged by the pressure sensor to determine whether there are problems such as missing nails, repeated nails, nail failure, over-stuck, etc., so that good and bad products can be sorted directly during the nailing process without adding additional inspection stations.

[0061] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0062] For ease of understanding, the following description will be made using the example of plugging the liquid injection hole of the battery cell. The plugging device, plugging equipment and plugging method in the embodiments of the present application can also be used with plugging in other similar situations, and are not limited to being used only for plugging the liquid injection hole of the battery cell.

[0063] In some embodiments of this application, see Figure 1 As shown, the nailing device includes a nailing assembly 100 , a transmission member 200 and a sensor 300 .

[0064] The nail assembly 100 is used to contact and push the nail to be inserted so that it can be inserted into the liquid injection hole of the battery cell. The transmission member 200 is provided with a mounting groove 210. The nail assembly 100 at least partially extends into the mounting groove 210 and is slidably and sealedly connected to the groove wall of the mounting groove 210. A gas storage chamber 220 for storing gas is formed between the nail assembly 100 and the bottom of the mounting groove 210. When the transmission member 200 is driven by an external force, it can drive the nail assembly 100 to push the nail to be inserted, thereby inserting the nail.

[0065] Driven by the reverse thrust generated by the movement of the nail to be inserted, the nail assembly 100 slides along the wall of the installation slot 210, thereby changing the size of the air storage chamber 220. This squeezes the gas within the air storage chamber 220, gradually increasing the air pressure. The sensor 300 is used to detect the real-time pressure within the air storage chamber 220. Based on the real-time pressure feedback from the sensor 300, the insertion status of the rubber nail into the injection hole can be determined.

[0066] Specifically, during the nailing process, if the nailing is normal, then as the nailing process changes, the air pressure in the air storage chamber 220 will also change within a certain range. Therefore, as long as the real-time air pressure detected by the sensor 300 exceeds the corresponding range, it can be determined that the current battery cell nailing is abnormal. For example, when a nail is missing, the air pressure in the air storage chamber 220 will not change, and will exceed the lower limit of the air pressure range of the normal nailing process. If there is a heavy nail, a nail is not inserted, or it is over-stuck, the reverse thrust fed back to the nailing assembly 100 will be extremely large, causing the air pressure in the air storage chamber 220 to exceed the upper limit of the air pressure range of the normal nailing process. Therefore, by observing the real-time air pressure obtained by the sensor 300, automatic screening of good and defective products in the nailing process can be achieved, which can effectively save processes.

[0067] In some embodiments of this application, see Figure 2 and Figure 3 As shown, an adapter 230 is rotatably provided on the transmission member 200 , and the adapter 230 is communicated with the gas storage chamber 220 . The adapter 230 is also connected to a gas supply device for supplying gas through an air pipe 240 .

[0068] Before nailing, gas can be injected into the gas storage chamber 220 through the adapter 230 and the gas supply equipment to make the gas in the gas storage chamber 220 meet the preset conditions, so that the nailing status can be judged by real-time pressure during the subsequent nailing process.

[0069] In addition, when inserting a nail, it is generally necessary for the transmission member 200 to move toward the injection hole and rotate at the same time. The adapter 230 is rotatably connected to the transmission member 200, which can avoid the entanglement of the air tube 240 during the nailing process. Of course, at this time, the adapter 230 is preferably rotatably connected to the middle part of the transmission member 200.

[0070] Furthermore, in order to protect the battery cell, when it is found that the real-time air pressure of the air storage chamber 220 exceeds the upper limit of the air pressure range during normal nailing, the pressure can be released so that the nail assembly 100 will not continue to push the nail to be inserted to move, thereby reducing the probability of damage to the battery cell.

[0071] Exemplarily, the pressure relief can be achieved by adding a pressure relief valve connected to the air storage chamber 220. The pressure relief valve automatically relieves the pressure when the air pressure in the air storage chamber 220 exceeds a certain value. The structure of the pressure relief valve is well known to those skilled in the art and will not be described in detail here.

[0072] Exemplarily, the pressure relief can also be achieved directly through an inflation valve that fills the air storage chamber 220 with gas. For example, an inflation valve can be added between the adapter 230 and the air supply device. The inflation valve can be an electric three-way valve. When gas needs to be filled, the electric three-way valve is directly connected to the air supply device, and gas is added to the air storage chamber 220 through the air supply device. When pressure relief is required, the electric three-way valve can connect the air storage chamber 220 with the external environment to directly relieve pressure. It can be understood that the gas filled in the air storage chamber 220 is mainly used to detect the status of the nail, and there is no special performance requirement. Air can be used directly to reduce costs.

[0073] Furthermore, the sensor 300 may be a pressure gauge connected to the air storage chamber 220 or the air pipe 240 , so that the real-time air pressure in the air storage chamber 220 can be obtained and displayed.

[0074] It is understandable that the sensor 300 may also be other devices that can be used to detect the real-time pressure in the air storage chamber 220, and this embodiment does not limit this.

[0075] In addition, the sensor 300 may be connected to a controller of the nailing device. The controller determines whether the nailing is abnormal based on the real-time pressure and marks the battery cells with abnormal nailing.

[0076] In some embodiments of the present application, the nail assembly 100 includes a piston 120 and a nail rod 110 , one end of the nail rod 110 is connected to the piston 120 , and the piston 120 is located in the mounting groove 210 and is slidingly and sealingly connected to the mounting groove 210 .

[0077] Specifically, a hole can be opened in the middle of the piston 120 to fix the pin rod 110, and the edge of the piston 120 is sealed in contact with the groove wall of the mounting groove 210 through a seal, so that the piston 120 can remain sealed when moving along the mounting groove 210, preventing the gas in the air storage chamber 220 from leaking through the contact point between the piston 120 and the mounting groove 210.

[0078] The nail rod 110 is made of a hard material, and one end thereof facing away from the piston 120 is used for contacting the nail to be inserted. When the transmission member 200 is driven to move, the nail rod 110 moves along with the transmission member 200, thereby pushing the nail to be inserted to move.

[0079] Furthermore, in order to limit the moving direction of the nail rod 110 and prevent it from deflecting, see Figure 2As shown, a cover plate 250 can be provided at the open end of the mounting groove 210, wherein the open end of the mounting groove 210 is the end thereof facing away from the air storage chamber 220, and the end of the nail rod 110 facing away from the piston 120 extends through the cover plate 250 to the outside of the mounting groove 210, and the cover plate 250 is used to allow the nail rod 110 to slide only along the extension direction of the mounting groove 210.

[0080] Exemplarily, a limiting hole 251 is provided on the cover plate 250 . The limiting hole 251 is a polygonal hole or a curved polygonal hole. The nail rod 110 is inserted into the limiting hole 251 , and the shape of the nail rod 110 is adapted to the shape of the limiting hole 251 .

[0081] For example, if Figure 4 and Figure 5 As shown, the cross-section of the nail rod 110 is a curved polygon, similar to two opposite slots opened on a circle, forming a guide groove extending along the length direction of the nail rod 110, and the limiting hole 251 forms a card block at the position corresponding to the guide groove, and the card block is inserted in the guide groove. When the nail rod 110 moves, the guide groove slides relative to the card block, limiting the moving direction of the nail rod 110 and preventing the nail rod 110 from rotating.

[0082] Of course, the limiting hole 251 can be a quadrilateral hole, a pentagonal hole, a hexagonal hole or other structures, as long as the nail rod 110 cannot rotate relative to the limiting hole 251 and will not tilt when sliding along the limiting hole 251. This embodiment does not limit it here.

[0083] It is understandable that the nail rod 110 and the cover plate 250 may also be connected in other ways, as long as the cover plate 250 can limit the moving direction of the nail rod 110 and prevent the nail rod 110 from rotating.

[0084] For example, Figure 1 As shown, the mounting groove 210 can be directly closed at one end away from the air storage chamber 220 without being opened. A hole for the plugging rod 110 to pass through is simply provided on the sealing plate at that end, and a corresponding limiting structure is provided to limit the moving direction of the plugging rod 110.

[0085] In some embodiments of the present application, a reset member 400 is provided in the installation groove 210. After the nail rod 110 is separated from the nail to be inserted, the reset member 400 can drive the nail assembly 100 to reset so that the air storage cavity 220 returns to its original size.

[0086] Exemplarily, the reset member 400 can be an elastic member, such as a spring or a spring, which is located on the side of the piston 120 away from the air storage chamber 220, one end of which is connected to the piston 120, and the other end of which is connected to the cover plate 250 or the sealing plate at the end of the mounting groove 210 away from the air storage chamber 220.

[0087] When the nail assembly 100 is in the initial position, that is, when it is not subjected to the reaction force exerted by the nail to be inserted, the elastic member is in a free state and there is no elastic potential energy that needs to be released. When the nail rod 110 is driven by the transmission member 200 to move for inserting the nail, the nail to be inserted will apply a reaction force to the nail rod 110, pushing the nail rod 110 and the piston 120 toward the air storage chamber 220, reducing the size of the air storage chamber 220. At this time, the elastic member is stretched and begins to accumulate potential energy. After the separation of the nail and the nail is completed, the elastic member releases the accumulated elastic potential energy, causing the nail rod 110 and the piston 120 to move toward the outside of the installation groove 210 until they return to the initial position. The elastic member is in a free state, thereby realizing the automatic reset of the piston 120 assembly, waiting for the inserting operation on the next battery cell.

[0088] Exemplarily, the reset member 400 may also be other components, such as a small electric cylinder, which is disposed in the air storage chamber 220 and pushes the piston 120 to move after the nail is inserted, thereby assisting the piston 120 assembly in resetting.

[0089] It is understandable that the above is merely an example and does not limit the structure of the restoring member 400 .

[0090] During the nailing process, the nailing rod 110 can only contact the end of the nail to be inserted and push the nail to move, but cannot effectively limit the moving path of the nail to be inserted during the nailing process. To this end, a guide member 500 can be set under the piston 120 assembly, and a guide hole 510 is set on the guide member 500. The guide hole 510 is coaxially arranged with the nailing rod 110, and the size of the guide hole 510 matches the size of the nail to be inserted.

[0091] As for the fixing of the guide member 500 , it can be selected according to the actual situation.

[0092] For example, the transmission member 200 may be supported by a bracket, and the transmission member 200 and the guide member 500 are both slidably connected to the bracket.

[0093] When inserting the nail, first put the nail to be inserted into the guide hole 510 by mechanical equipment or manually, then move the guide part 500 above the battery cell, and make the glue nail coaxial with the injection hole on the battery cell, and then drive the nail rod 110 by the transmission part 200 to move to be coaxial with the glue nail, and contact with the glue nail, and push the glue nail into the injection hole. During this process, the transmission part 200 will move to contact the side of the guide part 500 away from the battery cell, and push the guide part 500 to move synchronously toward the battery cell until the guide part 500 contacts the surface of the battery cell and the nail rod 110 contacts the surface of the battery cell, and the nailing is completed.

[0094] Alternatively, at the beginning, the guide member 500 directly contacts the upper surface of the battery cell, and the guide member 500 is no longer pushed to move by the transmission member 200. At this time, the length of the nail rod 110, or the initial air pressure of the air storage chamber 220, can be used to extend the nail rod 110 to a length that matches the transmission member 200 and the nailing requirements. At the end of the nailing, the nail rod 110 contacts the surface of the battery cell, and the end of the transmission member 200 contacts the surface of the guide member 500.

[0095] The embodiment of the present application further provides a nailing device, which includes a drive assembly and at least one nailing device according to the above embodiment. The drive assembly is in transmission connection with the transmission member 200, and is used to drive the transmission member 200 to move, or to rotate while moving.

[0096] For example, the driving assembly may include a lifting motor and a rotating motor. The lifting motor is used to control the transmission member 200 to move up and down, and the rotating motor is used to drive the transmission member 200 to rotate.

[0097] It is understandable that the driving assembly may also be other structures, as long as it can drive the transmission member 200 to move up and down, or rotate while moving up and down, or rotate alone, and this embodiment does not limit it here.

[0098] When using the nailing device, you can follow the following steps to insert the nail:

[0099] 1. Before the nailing process, the plastic nail is first inserted into the guide hole 510 on the guide member 500 by equipment or manually. At this time, the preparation work is completed;

[0100] 2. When inserting the nail, first fix the battery cell under the nail rod 110. At this time, the battery filling hole, the glue nail and the lower nail rod 110 are in the same straight line, that is, they are coaxially arranged;

[0101] 3. Use a pressure gauge to detect the real-time pressure in the air storage chamber 220 and adjust the amount of gas in the air storage chamber 220 so that the air pressure in the air storage chamber 220 meets the preset conditions;

[0102] 4. The nail rod 110 is driven by the driving assembly to descend to a suitable position. At this time, the nail rod 110 is close to the plastic nail but does not touch the plastic nail;

[0103] 5. Driven by the driving assembly, the transmission member 200 starts to rotate, causing the nail rod 110 to rotate synchronously. At the same time, the driving assembly drives the transmission member 200 to slowly descend again, and stops when it descends to a position where the glue nail is inserted into the injection hole. When stopping, the transmission member 200 is required to contact the guide member 500, and the guide member 500 is in contact with the surface of the battery cell. At this time, the driving assembly can be used to control the transmission member 200 to continue rotating for 2 to 3 seconds to improve the nailing effect.

[0104] During the nailing process, if the real-time pressure detected by the pressure gauge in the air storage chamber 220 is within the preset pressure range, it means that the nailing is normal. If the real-time pressure fed back by the pressure gauge is less than the lower limit of the preset pressure range, it means that the nail is leaking or the nail is not inserted, and the abnormality needs to be recorded. If the real-time pressure fed back by the pressure gauge is greater than the upper limit of the preset pressure range, it means that the nail is over-plugged or crooked. The air storage chamber 220 can be controlled to release pressure and record the abnormality. After pressure relief, over-plugging or crooked plugging can be prevented from damaging the battery cell.

[0105] 7. After the nailing is completed, the nailing rod 110 starts to rise under the drive of the driving assembly, rises to the initial position and stops, and the nailing is completed.

[0106] In the actual production process, in order to improve processing efficiency, multiple battery cells are generally nailed at the same time. Therefore, the nailing device may include multiple nailing devices. In this case, the driving component may include a transmission component and a driving member.

[0107] Exemplarily, the driving member includes a lifting motor and a rotating motor, and the transmission assembly may include a transmission plate and multiple gears. The transmission plate connects all the transmission members 200 and can drive all the transmission members 200 to move up and down under the drive of the lifting motor. The rotating motor is also fixed on the transmission plate and moves synchronously with the transmission member 200. Each transmission member 200 can be connected to a gear, and then transmitted through multiple gears or racks and other components, so that when the rotating motor is started, all the transmission members 200 can rotate synchronously.

[0108] Thus, one lifting motor and one rotating motor can drive all the transmission members 200 to move or rotate, and perform nailing synchronously, so that the nailing conditions of all battery cells remain consistent.

[0109] In order to realize automatic control, the nailing device can generally be equipped with a controller, so that the controller is connected to the drive component and the sensor 300 for communication, so that the controller can perform intelligent control to improve the convenience of nailing.

[0110] The present application also provides a nailing method, which is applied to the nailing device in the above embodiment. Figure 6 As shown, the nailing method includes:

[0111] S101. The drive assembly drives the transmission member 200 to move so that the distance between the nail assembly 100 and the nail to be inserted reaches a preset value. Of course, before this, it is necessary to adjust the position of the battery cell, or the transmission member 200 and the guide member so that the nail rod 110, the nail to be inserted, and the guide hole 510 are coaxial;

[0112] S102. The transmission member 200 is driven by the drive assembly to move and rotate, so that the nail assembly 100 pushes the nail to be inserted into the nail hole, and continuously obtains the real-time pressure within the gas storage chamber 220 through the sensor 300;

[0113] S103 determines whether the real-time pressure meets the preset pressure range. If so, proceed to step S105. If not, proceed to step S104.

[0114] The preset pressure is a pressure range consisting of possible values ​​of the real-time pressure when the nail is normally inserted.

[0115] S104. Mark the nailing device as abnormal. If the nailing device includes at least two nailing devices, proceed to step S105. If the nailing device includes only one nailing device, proceed to step S106.

[0116] S105. The drive assembly continues to drive the transmission member 200 to move until it reaches the preset pinning position;

[0117] S106. The driving assembly drives the transmission member 200 back to the initial position to complete the nailing.

[0118] Among them, when the nailing device includes multiple nailing devices, in order to protect the battery cell, after marking the nailing abnormality, if the real-time pressure is greater than the upper limit value of the preset pressure range, the amount of gas in the gas storage chamber 220 is reduced, and then the driving transmission member 200 is moved to continue nailing, thereby avoiding damage to the battery cell due to over-stuck, and will not affect the nailing of other normally nailed battery cells, which saves time and materials.

[0119] In some embodiments of this application, see Figure 7 As shown, the nailing method includes:

[0120] S201 obtains the real-time pressure within the gas storage chamber 220 through the sensor 300, and determines whether the real-time pressure meets the preset conditions. If so, the process proceeds to step S205. If not, the process proceeds to step S202.

[0121] Among them, the preset condition can be a pressure range, and a minimum value can be set as the lower limit of the pressure range, and the maximum value at which the equipment can work can be used as the upper limit of the pressure range. For example, the lower limit can be set to about 0.6kPa.

[0122] S202. Open the inflation valve to adjust the amount of gas in the gas storage chamber 220. If the preset conditions are met after adjustment, the process proceeds to step S204.

[0123] S203. Determine whether the adjusted real-time pressure meets the preset conditions. If so, proceed to step S205. If not, proceed to step S204.

[0124] S204. Alarm;

[0125] Specifically, there are two conditions for adjusting the amount of gas in the gas storage chamber 220:

[0126] After adjusting the amount of gas in the gas storage chamber 220 until the real-time pressure meets the preset condition, close the inflation valve and wait for a certain time, such as 5 seconds, and then determine whether the preset condition is still met. If so, it is determined that the real-time pressure meets the preset condition. If the real-time pressure does not meet the preset condition after a certain time, an alarm is issued for insufficient air tightness.

[0127] If the preset conditions are still not met after the inflation valve is opened for more than a certain time, such as 10 seconds, an alarm will be issued for insufficient pressure.

[0128] Different alarm signals can be issued for different situations to notify staff to deal with them accordingly. The size alarm can be connected to the host computer or mobile terminal through the controller, and the controller can send different alarm signals to the host computer or mobile terminal.

[0129] S205. The driving member 200 moves so that the distance between the nail assembly 100 and the nail to be inserted reaches a preset value;

[0130] S206. The transmission member 200 is driven by the drive assembly to move while rotating, so that the plug nail assembly 100 pushes the nail to be plugged into the nail hole, and continuously obtains the real-time pressure within the gas storage chamber 220 through the sensor 300;

[0131] S207. In the process of plugging nails, it is determined whether the real-time pressure meets the preset pressure range. If so, the process proceeds to step S211. If not, the process proceeds to step S208 or step S209.

[0132] S208. If the real-time pressure is less than the lower limit of the preset pressure range, the nail missing abnormality is marked and the process goes to step S211;

[0133] Specifically, marking the cells that are missing plugs or have failed to be plugged in can save the subsequent manual inspection process and reduce the waste of manpower and material resources.

[0134] S209. If the real-time pressure is greater than the upper limit of the preset pressure range, the blockage or oblique blockage is marked as abnormal; and the process goes to step S210;

[0135] S210. Depressurize the gas storage chamber 220 and proceed to step S211;

[0136] S211. The transmission member 200 is driven by the drive assembly to continue to move and rotate until the preset pin is completed.

[0137] S212. After the driving assembly drives the transmission member 200 to rotate continuously for a preset time, the transmission member 200 is driven to return to the initial position, thereby completing the nail insertion.

[0138] Finally, it should be noted that those skilled in the art will readily identify other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The present invention is not limited to the precise structure described above and illustrated in the accompanying drawings, and various modifications and variations may be made without departing from the scope thereof. The scope of the present invention is limited solely by the appended claims.

Claims

1. A nailing device, characterized in that: include: A nail assembly (100), the nail assembly (100) being used to contact a nail to be inserted; A transmission member (200), wherein a mounting groove (210) is provided on the transmission member (200), wherein the plug nail assembly (100) at least partially extends into the mounting groove (210) and is slidably and sealingly connected to the groove wall of the mounting groove (210), and a gas storage chamber (220) for storing gas is formed between the plug nail assembly (100) and the mounting groove (210), and the transmission member (200) is configured to move under the drive of an external force so as to drive the plug nail assembly (100) to push the plug nail to move; A sensor (300) for detecting the real-time pressure in the gas storage chamber (220); The plugging nail assembly (100) is configured to be driven by the reverse thrust generated when the plugging nail moves, and slide along the groove wall of the installation groove (210) to change the size of the air storage cavity (220).

2. The nailing device according to claim 1, characterized in that: The nail assembly (100) includes a piston (120) and a nail rod (110), one end of the nail rod (110) is connected to the piston (120), and the other end is used to contact the nail to be inserted, the piston (120) is located in the installation groove (210), and is connected to the installation groove (210) in a sliding and sealing manner to form the air storage chamber (220) between the piston and the installation groove (210).

3. The nailing device according to claim 2, characterized in that: A cover plate (250) is provided at the open end of the installation groove (210), and the end of the nail rod (110) passes through the cover plate (250) and extends to the outside of the installation groove (210). The cover plate (250) is configured to allow the nail rod (110) to slide only along the extension direction of the installation groove (210).

4. The nailing device according to claim 3, characterized in that: The cover plate (250) is provided with a limiting hole (251), the nail rod (110) is inserted into the limiting hole (251), and the shape of the nail rod (110) is adapted to the shape of the limiting hole (251).

5. The nailing device according to claim 3, characterized in that: A reset member (400) is arranged in the installation groove (210), and the reset member (400) is configured to drive the nail assembly (100) to reset after the nail rod (110) is separated from the nail to be inserted, so as to restore the air storage chamber (220) to its initial size.

6. The nailing device according to claim 5, characterized in that: The reset member (400) is an elastic member, which is located on the side of the piston (120) away from the air storage chamber (220), one end of the elastic member is connected to the piston (120), and the other end is connected to the groove wall of the installation groove (210) or the cover plate (250).

7. The nailing device according to claim 2, characterized in that: The invention also comprises a guide member (500), wherein the guide member (500) is located on the side of the nail rod (110) away from the air storage chamber (220), and a guide hole (510) is provided on the guide member (500), and the guide hole (510) is used for inserting the nail to be inserted, and the guide hole (510) is coaxially arranged with the nail rod (110).

8. The nailing device according to any one of claims 1 to 7, characterized in that: An adapter (230) is rotatably provided on the transmission member (200), and the adapter (230) is connected to the air storage chamber (220) and the air supply device via an air pipe (240).

9. The nailing device according to claim 8, characterized in that: The sensor (300) is a pressure gauge, and the pressure gauge is connected to the air storage chamber (220) or the air pipe (240).

10. A nailing device, characterized in that: It comprises a driving assembly and at least one nailing device according to any one of claims 1 to 9, wherein the driving assembly is in driving connection with the transmission member (200), and the driving assembly is configured to drive the transmission member (200) to move and rotate.

11. The nailing device according to claim 10, characterized in that: The nailing devices are provided with at least two; The driving assembly comprises a driving member and a transmission assembly, and the driving member is connected to all the transmission members (200) via the transmission assembly to drive all the transmission members (200) to move and rotate synchronously.

12. A nailing method, applied to the nailing device according to claim 10 or 11, characterized in that: include: The driving component drives the transmission member (200) to move so that the distance between the nail assembly (100) and the nail to be inserted reaches a preset value; The driving component drives the transmission member (200) to move and rotate at the same time, so that the nail assembly (100) pushes the nail to be inserted to move, and the real-time pressure in the air storage chamber (220) is continuously obtained through the sensor (300); If the real-time pressure does not satisfy the preset pressure range, the nail plugging is marked as abnormal.

13. The nailing method according to claim 12, characterized in that: Before the driving component drives the transmission member (200) to move so that the distance between the nail assembly (100) and the nail to be inserted reaches a preset value, the method further comprises: Acquiring the real-time pressure of the air storage chamber (220) through the sensor (300), and determining whether the real-time pressure meets a preset condition; If the condition is not satisfied, adjusting the amount of gas in the gas storage chamber (220); If the real-time pressure still cannot meet the preset condition after adjusting the amount of gas in the gas storage chamber (220), an alarm is issued; If the real-time pressure meets the preset condition, the transmission member (200) is driven to move.

14. The nailing method according to claim 12, characterized in that: The marking nail abnormalities include: If the real-time pressure is less than the lower limit of the preset pressure range, a nail missing abnormality is marked; If the real-time pressure is greater than the upper limit of the preset pressure range, an over-blockage or oblique blockage abnormality is marked.

15. The nailing method according to claim 14, characterized in that: The nailing device comprises at least two nailing devices, and after marking the nailing abnormality, further comprises: If the real-time pressure is greater than the upper limit of the preset pressure range, reducing the amount of gas in the gas storage chamber (220); The driving component drives the transmission member (200) to continue to move and rotate until it reaches a preset nail insertion completion position.

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