Cap assembly mechanism and battery processing apparatus

Abstract

The application discloses a cap assembling mechanism and a battery processing device. The cap assembling mechanism comprises a support, a deviation rectifying and guiding assembly arranged on the support, the deviation rectifying and guiding assembly comprising a first driving structure and two clamping jaws, each of the two clamping jaws is provided with a limiting groove, the two clamping jaws are used for being clamped on an outer surface of a battery cell and making the two limiting grooves form a guiding channel for accommodating a cap, the guiding channel is used for guiding movement of the cap during pressing of the cap, the first driving structure can drive the two clamping jaws to separate along a horizontal direction to avoid the battery cell, and the first driving structure can also drive the two clamping jaws to be clamped on the outer surface of the battery cell along the horizontal direction, and a pressing assembly arranged on the support, the pressing assembly is used for pressing the cap into a steel shell of the battery cell after the two clamping jaws are clamped on the outer surface of the battery cell. The cap assembling mechanism can rectify the cap before pressing of the cap, and can guide movement of the cap during pressing of the cap.

Description

Technical Field

[0001] This application relates to the field of battery processing technology, and in particular to a cap assembly mechanism and battery processing equipment. Background Technology

[0002] With the rapid development of the lithium battery industry, the use of lithium batteries in daily life is becoming increasingly widespread. To meet market demand, lithium battery processing equipment is constantly being improved and innovated. In the production of cylindrical lithium batteries, the tabs and caps of the battery cell need to be welded together. After welding, the tabs are bent, and then the caps are pressed into the steel shell of the battery cell. However, after bending the tabs, misalignment between the caps and the steel shell of the battery cell can occur. This can prevent traditional cap assembly mechanisms from fully pressing the caps into the steel shell, resulting in defective products and affecting the yield rate. Furthermore, before pressing down the caps, because the caps are welded to and supported by the tabs, the movement path of the caps cannot be well controlled during the pressing process, occasionally causing traditional cap assembly mechanisms to fail to fully press the caps into the steel shell of the battery cell. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a cap assembly mechanism that can correct the misalignment of the cap before it is pressed down, and guide the movement of the cap during the pressing process. This helps to reduce the situation where the cap cannot be fully pressed into the steel shell of the battery cell, thereby improving the product yield.

[0004] This application also proposes a battery processing device having the aforementioned cap assembly mechanism.

[0005] The cap assembly mechanism according to the first aspect of this application includes:

[0006] support;

[0007] A correction guide assembly is disposed on the bracket. The correction guide assembly includes a first drive structure and two grippers. Each of the two grippers is provided with a limiting groove. The two grippers are used to grip the outside of the battery cell and enclose the two limiting grooves to form a guide channel for accommodating the cap. The guide channel is used to guide the movement of the cap during the pressing down of the cap. The first drive structure can drive the two grippers to separate in the horizontal direction to avoid the battery cell. The first drive structure can also drive the two grippers to grip the outside of the battery cell in the horizontal direction.

[0008] A pressing assembly, mounted on the bracket, is used to press the cap into the steel shell of the battery cell after the two grippers have engaged with the outside of the cell.

[0009] The cap assembly mechanism according to the embodiments of this application has at least the following beneficial effects: In use, the first driving structure first drives the two grippers to separate horizontally to avoid the battery cell in transit, so that the battery cell can be transported between the two grippers. After the battery cell is transported between the two grippers, the first driving structure drives the two grippers to clamp around the battery cell horizontally. Finally, the pressing component presses the cap into the steel shell of the battery cell. Since the cap is accommodated in the guide channel after the two grippers clamp around the battery cell, the two grippers can act on the cap that is misaligned relative to the steel shell of the battery cell during the clamping process to correct the cap's deviation. Simultaneously, the guide channel can guide the movement of the cap during the pressing process. Compared to traditional cap assembly mechanisms, the cap assembly mechanism of the embodiments of this application can correct the cap's deviation before pressing it down and guide the cap's movement during the pressing process, thereby reducing the possibility of the cap not being completely pressed into the steel shell of the battery cell, and thus improving the product yield.

[0010] According to some embodiments of this application, the limiting groove is stepped, so that the limiting groove has a first part and a second part of different sizes. The first part of the two limiting grooves is used to enclose and form the guide channel, and the second part of the two limiting grooves is used to enclose and form a receiving cavity communicating with the guide channel. The inner diameter of the receiving cavity is adapted to the outer diameter of the steel shell of the battery cell, and the inner diameter of the guide channel is smaller than the inner diameter of the receiving cavity and is adapted to the outer diameter of the cap.

[0011] According to some embodiments of this application, the first driving structure includes a first sliding structure and two first connecting rods. The first sliding structure is slidably disposed on the bracket and is used to input power and slide up and down relative to the bracket. The two grippers are slidably disposed on the bracket and are located on both sides of the first sliding structure in the horizontal direction. One end of each of the two first connecting rods is hinged to the first sliding structure, and the other end of each of the two first connecting rods acts on the two grippers in a corresponding manner. The two first connecting rods can drive the two grippers to separate or engage under the drive of the first sliding structure.

[0012] According to some embodiments of this application, the pressing assembly includes a second sliding structure, a driving member, and a pressing part. The second sliding structure is slidably disposed on the bracket. The driving member is disposed on the bracket and is used to drive the second sliding structure to slide up and down relative to the bracket. The pressing part is disposed on the second sliding structure and is used to press the cap into the steel shell of the battery cell after the two grippers are engaged with the outside of the battery cell.

[0013] According to some embodiments of this application, the second sliding structure is a split structure, the second sliding structure includes a first sliding part and a second sliding part located below the first sliding part, the output end of the driving member is connected to the first sliding part, the pressing part is disposed on the second sliding part, a compression spring is disposed between the first sliding part and the second sliding part, one of the first sliding part and the second sliding part is fixedly provided with a connecting rod that movably passes through the other, and the free end of the connecting rod is provided with a limiting part for driving the second sliding part to slide synchronously upward relative to the bracket along with the first sliding part.

[0014] According to some embodiments of this application, the connecting rod is provided with two anti-collision pads that are spaced apart along the axial direction of the connecting rod, and the one of the first sliding part and the second sliding part that is closer to the limiting part is located between the two anti-collision pads.

[0015] According to some embodiments of this application, the cap assembly mechanism further includes an adjustment knob, one end of which has a threaded connection portion. One of the first sliding portion and the second sliding portion is provided with a threaded through hole corresponding to the adjustment knob. The threaded connection portion is threadedly connected to the threaded through hole. A first blind hole is provided on the adjustment knob corresponding to the compression spring. The other of the first sliding portion and the second sliding portion is provided with a second blind hole corresponding to the compression spring. One end of the compression spring is inserted into the first blind hole, and the other end of the compression spring is inserted into the second blind hole.

[0016] According to some embodiments of this application, the cap assembly mechanism further includes a detection component for detecting when the cap is not pressed down into place.

[0017] According to some embodiments of this application, the detection component includes a photoelectric switch and a baffle. The photoelectric switch has a transmitter and a receiver spaced apart. The photoelectric switch is disposed on the side of one of the first sliding portion and the second sliding portion, and the baffle is disposed on the side of the other of the first sliding portion and the second sliding portion corresponding to the photoelectric switch. The pressing portion is configured to drive the second sliding portion toward the first sliding portion due to abnormal force when the cap cannot be pressed down into place, so as to drive the baffle to be inserted between the transmitter and the receiver and block the light path between the transmitter and the receiver.

[0018] A battery processing apparatus according to a second aspect embodiment of this application includes:

[0019] A frame, wherein a cap assembly station is provided on the frame, and the cap assembly station is provided with a cap assembly mechanism according to the first aspect embodiment of the present application described above.

[0020] A conveying mechanism is provided on the frame and is used to convey the battery cells to the cap assembly station.

[0021] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of a cap assembly mechanism according to an embodiment of this application;

[0024] Figure 2 yes Figure 1 A partial schematic diagram of the structure shown;

[0025] Figure 3 yes Figure 2 A schematic diagram of the structure shown from another perspective;

[0026] Figure 4 yes Figure 2 A schematic diagram of the structure shown from another perspective;

[0027] Figure 5 This is a schematic diagram of the structure of the pressing component and the detection component according to an embodiment of this application;

[0028] Figure 6 yes Figure 5 Enlarged view of a portion of point A in the middle;

[0029] Figure 7This is a schematic diagram of the gripper structure according to an embodiment of this application.

[0030] Figure label:

[0031] Cell a;

[0032] Bracket 100;

[0033] Claw 210, limiting groove 211, first part 211a, second part 211b, transmission part 212, first sliding structure 220, first connecting rod 230, first swing arm 240, mating part 241, second connecting rod 250, second swing arm 260, third connecting rod 270, cam 280, return spring 290;

[0034] Drive component 310, pressing part 320, first sliding part 330, second sliding part 340, compression spring 350, connecting rod 360, limiting part 361, anti-collision pad 370, adjusting knob 380, threaded connection part 381;

[0035] Photoelectric switch 410, baffle 420. Detailed Implementation

[0036] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0037] In the description of this application, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this application and simplifying the description, and does 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.

[0038] In the description of this application, if words such as several, greater than, less than, exceeding, above, below, or within appear, "several" means one or more, "more than" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the number itself, and "above," "below," "within," etc. are understood to include the number itself.

[0039] In the description of this application, the use of terms such as "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0040] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0041] Reference Figures 1 to 7 The cap assembly mechanism according to an embodiment of this application includes a bracket 100, a correction guide assembly, and a pressing assembly.

[0042] Specifically, the correction and guidance assembly is mounted on the bracket 100. The correction and guidance assembly includes a first driving structure and two grippers 210. Each gripper 210 is provided with a limiting groove 211. The two grippers 210 are used to grip the outside of the battery cell a and enclose the two limiting grooves 211 to form a guide channel for accommodating the cap. The guide channel is used to guide the movement of the cap during the pressing process. The first driving structure can drive the two grippers 210 to separate in the horizontal direction to avoid the battery cell a in the transport process, so that the battery cell a can be transported between the two grippers 210. The first driving structure can also drive the two grippers 210 to grip the outside of the battery cell a in the horizontal direction, so that the two limiting grooves 211 enclose the guide channel. The pressing assembly is mounted on the bracket 100. The pressing assembly is used to press the cap into the steel shell of the battery cell a after the two grippers 210 grip the outside of the battery cell a.

[0043] It should be noted that the limiting groove 211 extends vertically through both end faces of the gripper 210.

[0044] In use, the first drive structure first drives the two grippers 210 to separate horizontally to avoid the conveying battery cell a, allowing the battery cell a to be conveyed between the two grippers 210. After the battery cell a is conveyed between the two grippers 210, the first drive structure drives the two grippers 210 to clamp around the battery cell a horizontally. Finally, the pressing component presses the cap into the steel shell of the battery cell a. Since the cap is accommodated in the guide channel after the two grippers 210 clamp around the battery cell a, the two grippers 210 can act on the cap, which is misaligned relative to the steel shell of the battery cell a, during the clamping process to correct the cap's deviation. At the same time, the guide channel can guide the movement of the cap during the pressing process. Compared to traditional cap assembly mechanisms, the cap assembly mechanism of this application embodiment can correct the cap before pressing it down, and guide the movement of the cap during the pressing process. This helps to reduce the situation where the cap cannot be completely pressed into the steel shell of the battery cell a, thereby improving the product yield.

[0045] Reference Figure 7In some embodiments, the limiting groove 211 is stepped, so that the limiting groove 211 has a first part 211a and a second part 211b of different sizes. The first part 211a of the two limiting grooves 211 is used to enclose and form a guide channel, and the second part 211b of the two limiting grooves 211 is used to enclose and form a receiving cavity communicating with the guide channel. The inner diameter of the receiving cavity is adapted to the outer diameter of the steel shell of the battery cell a. The inner diameter of the guide channel is smaller than the inner diameter of the receiving cavity and is adapted to the outer diameter of the cap. Since the outer diameter of the steel shell of the battery cell a is larger than the outer diameter of the cap, if the inner diameter of the guide channel is the same as the inner diameter of the receiving cavity, there will be a large difference between the inner diameter of the guide channel and the outer diameter of the cap. This results in a large space for the cap to move horizontally within the guide channel, thereby affecting the cap's correction and guiding effect. Compared to the case where the inner diameter of the guide channel is the same as the inner diameter of the receiving cavity, setting the limiting groove 211 in a stepped shape makes the inner diameter of the guide channel smaller than the inner diameter of the receiving cavity. This reduces the space for the cap to move horizontally within the guide channel, making the inner diameter of the guide channel closer to the outer diameter of the cap, thereby improving the cap's correction and guiding effect.

[0046] Reference Figures 1 to 4 In some embodiments, the first driving structure includes a first sliding structure 220 and two first connecting rods 230. The first sliding structure 220 is slidably disposed on the bracket 100 and is used to input power and slide up and down relative to the bracket 100. Two grippers 210 are slidably disposed on the bracket 100 and are located on both sides of the first sliding structure 220 in the horizontal direction. One end of each of the two first connecting rods 230 is hinged to the first sliding structure 220, and the other end of each first connecting rod acts on the two grippers 210 respectively. The two first connecting rods 230 can drive the two grippers 210 to separate or engage under the drive of the first sliding structure 220. In use, only one driving force needs to be applied to the first sliding structure 220 to drive the two grippers 210 to separate or engage, thereby helping to reduce the driving cost.

[0047] Reference Figures 1 to 4 In some embodiments, the first drive structure further includes a first swing arm 240 and a second link 250. The first swing arm 240 is used to input power and swing up and down. The lower end of the second link 250 is hinged to the first swing arm 240, and the upper end of the second link 250 acts on the first sliding structure 220. The second link 250 can drive the first sliding structure 220 to slide up and down relative to the bracket 100 under the drive of the first swing arm 240. By setting the first swing arm 240 and the second link 250, the power source used for inputting power does not need to be integrated on the bracket 100, which is beneficial to optimizing the layout of various components on the bracket 100.

[0048] Specifically, the gripper 210 is provided with a transmission part 212, and the end of the first connecting rod 230 away from the first sliding structure 220 is hinged to the corresponding transmission part 212.

[0049] Specifically, the first sliding structure 220 and the bracket 100, as well as the transmission part 212 and the bracket 100, are connected by guide rails and sliders.

[0050] Reference Figures 1 to 4 In some embodiments, the first drive structure further includes a second swing arm 260 and a third link 270. The middle part of the second swing arm 260 is hinged to the bracket 100 so that both ends of the second swing arm 260 can swing up and down. The upper end of the second link 250 is hinged to one end of the second swing arm 260, and the other end of the second swing arm 260 is hinged to the lower end of the third link 270. The upper end of the third link 270 is hinged to the first sliding structure 220. When the first swing arm 240 swings upward, it can drive the second link 250 to drive the second swing arm 260 to swing, thereby driving the third link 270 to drive the first sliding structure 220 to slide downward, and then driving the two first links 230 to drive the two grippers 210 to engage. When the first swing arm 240 swings downward, it drives the second link 250 to swing the second swing arm 260, which in turn drives the third link 270 to slide the first sliding structure 220 upward, thereby driving the two first links 230 to separate the two grippers 210. By setting the second swing arm 260 and the third link 270, the second link 250 can be horizontally offset from the first sliding structure 220, thus allowing the second link 250 to avoid the conveyed battery cell a, thereby simplifying the conveying path of battery cell a.

[0051] Reference Figures 1 to 4In some embodiments, the first drive structure further includes a cam 280 and a return spring 290. The end of the first swing arm 240 away from the second link 250 is rotatably mounted on the frame of the battery processing equipment. The first swing arm 240 has a mating part 241 that engages with the cam 280 for transmission. The upper end of the return spring 290 is connected to the frame of the battery processing equipment, and the lower end of the return spring 290 is connected to the end of the first swing arm 240 near the second link 250. The return spring 290 drives the first swing arm 240 to swing upwards, thereby driving the second link 250 to swing the second swing arm 260, which in turn drives the third link 270 to slide the first sliding structure 220 downwards, and further drives the two first links 230 to engage the two grippers 210. The cam 280, driven by the motor, drives the first swing arm 240 to swing downwards, which in turn drives the second link 250 to swing the second swing arm 260, thereby driving the third link 270 to slide the first sliding structure 220 upwards, and further driving the two first links 230 to separate the two grippers 210. At this time, the motor only needs to drive the cam 280 to rotate in the same direction through the shaft, that is, the motor does not need to reverse, making it easy to control.

[0052] Specifically, the mating part 241 is a cam bearing.

[0053] It should be noted that in some other embodiments, the second swing arm 260 and the third link 270 described above may not be provided. Specifically, the upper end of the second link 250 is directly hinged to the first sliding structure 220. The return spring 290 is used to drive the first swing arm 240 to swing upward, so as to drive the second link 250 to drive the first sliding structure 220 to slide upward, thereby driving the two first links 230 to drive the two grippers 210 to separate. The cam 280 is used to drive the first swing arm 240 to swing downward under the drive of the motor, so as to drive the second link 250 to drive the first sliding structure 220 to slide downward, thereby driving the two first links 230 to drive the two grippers 210 to engage. In this case, the specific structure and transmission relationship of the first drive structure can be simplified.

[0054] It should be noted that in some other embodiments, the upper end of the return spring 290 may be connected to the end of the first swing arm 240 near the second connecting rod 250, and the lower end of the return spring 290 may be connected to the frame of the battery processing equipment. In this case, the return spring 290 is used to drive the first swing arm 240 to swing downward, and the cam 280 is used to drive the first swing arm 240 to swing upward under the drive of the motor.

[0055] It should be noted that in some other embodiments, the first swing arm 240 can be directly driven by the motor through the transmission shaft to swing up and down. In this case, there is no need to set the cam 280 and the return spring 290 mentioned above. In this case, the motor needs to rotate forward and reverse continuously.

[0056] It should be noted that, in some other embodiments, the first sliding structure 220 can be directly driven to slide up and down relative to the bracket 100 by means of a cylinder, hydraulic cylinder, linear motor, or other actuator capable of driving the target component to move reciprocally in a straight line. In this case, it is unnecessary to set the aforementioned first swing arm 240, second connecting rod 250, second swing arm 260, third connecting rod 270, cam 280, and return spring 290, which simplifies the specific structure and transmission relationship of the first driving structure.

[0057] It should be noted that in some other embodiments, the two grippers 210 can be driven to separate or engage one-to-one by two cylinders. Of course, the cylinders driving the grippers 210 can also be replaced by hydraulic cylinders, linear motors, or other actuators capable of driving the target component to move reciprocally in a straight line, and are not limited here.

[0058] Reference Figure 3 , Figure 5 and Figure 6 In some embodiments, the pressing component includes a second sliding structure, a driving member 310, and a pressing part 320. The second sliding structure is slidably disposed on the bracket 100. The driving member 310 is disposed on the bracket 100 and is used to drive the second sliding structure to slide up and down relative to the bracket 100. The pressing part 320 is disposed on the second sliding structure and is used to press the cap into the steel shell of the battery cell a after the two grippers 210 are gripped outside the battery cell a. Its structure is simple and easy to implement.

[0059] Specifically, the driving component 310 is a cylinder. Of course, the driving component 310 can also be a hydraulic cylinder, a linear motor, or other driver that can drive the target component to move back and forth in a straight line. No limitation is made here.

[0060] Specifically, the second sliding structure is connected to the bracket 100 via a guide rail and a slider.

[0061] Reference Figure 3 , Figure 5 and Figure 6In some embodiments, the second sliding structure is a split structure, including a first sliding part 330 and a second sliding part 340 located below the first sliding part 330. The output end of the driving member 310 is connected to the first sliding part 330, and the pressing part 320 is disposed on the second sliding part 340. A compression spring 350 is disposed between the first sliding part 330 and the second sliding part 340. A connecting rod 360 is fixedly disposed on one of the first sliding part 330 and the second sliding part 340 and is movably inserted through the other. The free end of the connecting rod 360 is provided with a limiting part 361 for driving the second sliding part 340 to slide upward synchronously with the first sliding part 330 relative to the bracket 100. When the driving member 310 drives the first sliding part 330 to slide downward relative to the bracket 100, the compression spring 350 drives the second sliding part 340 to slide downward relative to the bracket 100, thereby causing the pressing part 320 to press down on the cap. Since the connecting rod 360 can bring the first sliding part 330 and the second sliding part 340 closer together, the compression spring 350 can provide a buffering force when pressing down on the cap, which helps to prevent the battery cell a from being damaged. When the driving member 310 drives the first sliding part 330 to slide upward relative to the bracket 100, the limiting part 361 drives the second sliding part 340 to slide upward synchronously with the first sliding part 330 relative to the bracket 100, thereby causing the pressing part 320 to separate from the cap.

[0062] Reference Figure 5 and Figure 6 In some embodiments, the connecting rod 360 is provided with two anti-collision pads 370 that are spaced apart along the axial direction of the connecting rod 360. The one of the first sliding part 330 and the second sliding part 340 that is closer to the limiting part 361 is located between the two anti-collision pads 370. The anti-collision pads 370 can play an anti-collision role, thereby helping to improve the service life of related components.

[0063] Specifically, the anti-collision pad 370 can be made of materials with cushioning capabilities, such as silicone or rubber.

[0064] Reference Figure 5 and Figure 6In some embodiments, one end of the connecting rod 360 is fixedly connected to the side of the second sliding part 340 facing the first sliding part 330. The first sliding part 330 is provided with a clearance through hole corresponding to the connecting rod 360. The connecting rod 360 passes through the clearance through hole. The free end of the connecting rod 360 is the end of the connecting rod 360 away from the second sliding part 340. The limiting part 361 is provided at the end of the connecting rod 360 away from the second sliding part 340 and is located on the side of the first sliding part 330 facing away from the second sliding part 340. At this time, the first sliding part 330 is located between the two anti-collision pads 370. The anti-collision pad 370 located between the limiting part 361 and the first sliding part 330 can prevent the limiting part 361 from hitting the first sliding part 330 under the elastic force of the compression spring 350. At the same time, the anti-collision pad 370 located between the first sliding part 330 and the second sliding part 340 can prevent the second sliding part 340 from hitting the first sliding part 330 when the pressing part 320 is abnormally stressed.

[0065] It should be noted that in some other embodiments, one end of the connecting rod 360 is fixedly connected to the side of the first sliding part 330 facing the second sliding part 340. In this case, a clearance through hole is provided on the second sliding part 340, the free end of the connecting rod 360 is the end of the connecting rod 360 away from the first sliding part 330, and the limiting part 361 is provided at the end of the connecting rod 360 away from the first sliding part 330 and located on the side of the second sliding part 340 facing away from the first sliding part 330. In this case, the second sliding part 340 is located between the two anti-collision pads 370. The anti-collision pads 370 located between the limiting part 361 and the second sliding part 340 can prevent the second sliding part 340 from hitting the limiting part 361 under the elastic force of the compression spring 350. At the same time, the anti-collision pads 370 located between the first sliding part 330 and the second sliding part 340 can prevent the second sliding part 340 from hitting the first sliding part 330 when the pressing part 320 is abnormally stressed.

[0066] Reference Figure 3 , Figure 5 and Figure 6 In some embodiments, the cap assembly mechanism further includes an adjustment knob 380. One end of the adjustment knob 380 has a threaded connection portion 381. One of the first sliding portion 330 and the second sliding portion 340 is provided with a threaded through hole corresponding to the adjustment knob 380. The threaded connection portion 381 is threadedly connected to the threaded through hole. The adjustment knob 380 is provided with a first blind hole corresponding to the compression spring 350. The other of the first sliding portion 330 and the second sliding portion 340 is provided with a second blind hole corresponding to the compression spring 350. One end of the compression spring 350 is inserted into the first blind hole, and the other end of the compression spring 350 is inserted into the second blind hole. In use, the initial compression amount of the compression spring 350 can be adjusted by rotating the adjustment knob 380, thereby meeting different processing requirements.

[0067] In some embodiments, a threaded through hole is provided on the first sliding part 330, and a second blind hole is provided on the second sliding part 340.

[0068] It should be noted that in some other embodiments, the threaded through hole can also be provided on the second sliding part 340, and correspondingly, the second blind hole is provided on the first sliding part 330.

[0069] In some embodiments, the cap assembly mechanism also includes a detection component for detecting when the cap is not pressed down properly, thereby promptly alerting staff to shut down the equipment for maintenance.

[0070] Reference Figure 3 , Figure 5 and Figure 6 In some embodiments, the detection component includes a photoelectric switch 410 and a baffle 420. The photoelectric switch 410 has a transmitter and a receiver spaced apart. The photoelectric switch 410 is provided on the side of one of the first sliding portion 330 and the second sliding portion 340. The baffle 420 is provided on the side of the other of the first sliding portion 330 and the second sliding portion 340 corresponding to the photoelectric switch 410. The pressing portion 320 is configured to drive the second sliding portion 340 toward the first sliding portion 330 due to abnormal force when the cap cannot be pressed down into place, so as to drive the baffle 420 to be inserted between the transmitter and the receiver and block the light path between the transmitter and the receiver. During the process of pressing down the cap, the drive unit 310 drives the first sliding part 330 to slide down a preset distance relative to the bracket 100 (under normal circumstances, the cap can be pressed down smoothly into place). A suitable compression spring 350 is selected so that when the cap is pressed down normally, the compression amount of the compression spring 350 is insufficient to allow the baffle 420 to be inserted between the transmitter and the receiver. If the cap cannot be pressed down into place due to poor posture or other reasons, the pressing part 320 is abnormally stressed, which will drive the second sliding part 340 to overcome the elastic force of the compression spring 350 and move towards the first sliding part 330, thereby allowing the baffle 420 to be inserted between the transmitter and the receiver and blocking the optical path between the transmitter and the receiver. Finally, an electrical signal is generated and fed back to the control panel to remind the staff or directly triggers the alarm to remind the staff.

[0071] Specifically, the photoelectric switch 410 adopts a slot-type photoelectric switch, that is, the transmitter and receiver are integrated into one unit. Of course, the photoelectric switch 410 can also adopt a through-beam type photoelectric switch, that is, the transmitter and receiver are structurally separated. In addition, the photoelectric switch 410 can also adopt other structural types, which are not limited here.

[0072] The battery processing apparatus according to an embodiment of this application includes a frame and a conveying mechanism.

[0073] Specifically, a cap assembly station is provided on the frame, and the cap assembly station is equipped with the aforementioned cap assembly mechanism. A conveying mechanism is provided on the frame and is used to convey battery cell a to the cap assembly station.

[0074] It should be noted that since the battery processing equipment of the embodiments of this application includes the cap assembly mechanism described above, the battery processing equipment of the embodiments of this application includes all the technical effects of the cap assembly mechanism described above.

[0075] In the description of this specification, the use of terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0076] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A cap assembly mechanism, characterized in that, include: support; A correction guide assembly is disposed on the bracket. The correction guide assembly includes a first drive structure and two grippers. Each of the two grippers is provided with a limiting groove. The two grippers are used to grip the outside of the battery cell and enclose the two limiting grooves to form a guide channel for accommodating the cap. The guide channel is used to guide the movement of the cap during the pressing down of the cap. The first drive structure can drive the two grippers to separate in the horizontal direction to avoid the battery cell. The first drive structure can also drive the two grippers to grip the outside of the battery cell in the horizontal direction. A pressing assembly, mounted on the bracket, is used to press the cap into the steel shell of the battery cell after the two grippers have engaged with the outside of the cell.

2. The cap assembly mechanism as described in claim 1, characterized in that, The limiting groove is stepped, so that the limiting groove has a first part and a second part of different sizes. The first part of the two limiting grooves is used to enclose and form the guide channel, and the second part of the two limiting grooves is used to enclose and form a receiving cavity connected to the guide channel. The inner diameter of the receiving cavity is adapted to the outer diameter of the steel shell of the battery cell. The inner diameter of the guide channel is smaller than the inner diameter of the receiving cavity and is adapted to the outer diameter of the cap.

3. The cap assembly mechanism as described in claim 1 or 2, characterized in that, The first driving structure includes a first sliding structure and two first connecting rods. The first sliding structure is slidably disposed on the bracket. The first sliding structure is used to input power and slide up and down relative to the bracket. The two grippers are slidably disposed on the bracket. The two grippers are located on both sides of the first sliding structure in the horizontal direction. One end of each of the two first connecting rods is hinged to the first sliding structure. The other end of each of the two first connecting rods acts on the two grippers in a corresponding manner. The two first connecting rods can drive the two grippers to separate or engage under the drive of the first sliding structure.

4. The cap assembly mechanism as described in claim 1 or 2, characterized in that, The pressing assembly includes a second sliding structure, a driving member, and a pressing part. The second sliding structure is slidably disposed on the bracket. The driving member is disposed on the bracket and is used to drive the second sliding structure to slide up and down relative to the bracket. The pressing part is disposed on the second sliding structure and is used to press the cap into the steel shell of the battery cell after the two grippers are engaged with the outside of the battery cell.

5. The cap assembly mechanism as described in claim 4, characterized in that, The second sliding structure is a split structure, which includes a first sliding part and a second sliding part located below the first sliding part. The output end of the driving member is connected to the first sliding part, and the pressing part is disposed on the second sliding part. A compression spring is disposed between the first sliding part and the second sliding part. A connecting rod that is movably inserted through the other is fixedly disposed on one of the first sliding part and the second sliding part. The free end of the connecting rod is provided with a limiting part for driving the second sliding part to slide upward synchronously with the first sliding part relative to the bracket.

6. The cap assembly mechanism as described in claim 5, characterized in that, The connecting rod is provided with two anti-collision pads that are spaced apart along the axial direction of the connecting rod, and the one of the first sliding part and the second sliding part that is closer to the limiting part is located between the two anti-collision pads.

7. The cap assembly mechanism as described in claim 5, characterized in that, The cap assembly mechanism further includes an adjustment knob, one end of which has a threaded connection portion. One of the first sliding portion and the second sliding portion is provided with a threaded through hole corresponding to the adjustment knob. The threaded connection portion is threadedly connected to the threaded through hole. The adjustment knob is provided with a first blind hole corresponding to the compression spring. The other of the first sliding portion and the second sliding portion is provided with a second blind hole corresponding to the compression spring. One end of the compression spring is inserted into the first blind hole, and the other end of the compression spring is inserted into the second blind hole.

8. The cap assembly mechanism as described in claim 5, characterized in that, The cap assembly mechanism also includes a detection component, which is used to detect if the cap is not pressed down into place.

9. The cap assembly mechanism as described in claim 8, characterized in that, The detection component includes a photoelectric switch and a baffle. The photoelectric switch has a transmitter and a receiver spaced apart. The photoelectric switch is disposed on the side of one of the first sliding portion and the second sliding portion, and the baffle is disposed on the side of the other of the first sliding portion and the second sliding portion corresponding to the photoelectric switch. The pressing portion is configured to drive the second sliding portion toward the first sliding portion due to abnormal force when the cap cannot be pressed down into place, so as to drive the baffle to be inserted between the transmitter and the receiver and block the light path between the transmitter and the receiver.

10. A battery processing equipment, characterized in that, include: A frame, wherein a cap assembly station is provided on the frame, and the cap assembly station is provided with a cap assembly mechanism as described in any one of claims 1 to 9; A conveying mechanism is provided on the frame and is used to convey the battery cells to the cap assembly station.

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