A power lithium battery cap loading equipment

Abstract

The application relates to the technical field of battery assembly, and discloses a power lithium battery cap loading equipment. In order to solve the problem that the adsorption nozzle is prone to position deviation during the carrying of the cap, the bottom of the suction cup is used to adsorb the battery cap, meanwhile, the four sides of the clamping seat are provided with aligning push rods which are close to the central shaft, the outer side of the battery cap is limited by the aligning push rods, the central line of the circle surrounded by the four aligning push rods, the central line of the battery cap and the central line of the clamping seat are on the same straight line, the central axes of the clamping seat and the battery cap are aligned, and the clamping seat can drive the battery cap to accurately move to the end of the lithium battery and realize assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery assembly, and particularly relates to a power lithium battery cap feeding equipment. BACKGROUND

[0002] With the vigorous development and increasing maturity of the new energy automobile industry, its market size continues to expand, and the technology iterates day by day. Consumers' requirements for the endurance mileage, safety performance and overall quality of new energy vehicles are also increasingly stringent. Under this background, as one of the core components of new energy vehicles, the importance of power lithium batteries is increasingly prominent, and the market demand for power lithium batteries is like a flood that is more and more. The power lithium battery not only directly relates to the endurance capability of the new energy vehicle, but also deeply affects the power output, charging efficiency and service life of the vehicle, and other key performance indicators, so its research and development, production and application have become a crucial link in the new energy vehicle industry chain.

[0003] In the production and manufacturing process of power lithium batteries, every tiny component is crucial, which together ensures the overall performance and quality of the battery. According to the search, the publication number CN217134508U discloses a low-loss type cap assembly moving device for battery cap assembly. This innovative design provides strong support for improving the production efficiency and yield of lithium batteries. The device skillfully moves the vacuum suction accessory through the moving mechanism, so that the vacuum suction accessory can flexibly switch between the material taking station and the feeding station, thereby efficiently completing the task of moving the cover plate. In the process of moving the cover plate, the device adopts the vacuum suction method to smoothly and accurately drive the cover plate into the containing frame fixed on the protective sheet. This design not only avoids the deformation problem of the cover plate caused by the traditional clamp, but also greatly improves the safety and stability during the handling process.

[0004] However, from the perspective of actual application, the shape of the cap is usually circular, which requires that the coaxial state between the cap and the suction nozzle must be strictly guaranteed when the cap is sucked by the suction nozzle, so that the cap can be accurately aligned and placed on the battery. However, in the actual production process, due to the constraints of external environmental factors (such as vibration) and manufacturing precision (such as equipment precision, part machining error, etc.), the suction nozzle often cannot ensure that the cap and the suction nozzle can be accurately coaxially placed when the cap is sucked. The existence of this problem directly leads to the deviation between the cap and the battery after the cap is placed on the battery, which affects the assembly precision and overall quality of the lithium battery, and ultimately reduces the yield of the lithium battery. SUMMARY

[0005] The application provides a power lithium battery cap loading equipment, which integrates adsorption fixing function and four-corner clamping centering function, and can effectively solve the problem that the adsorption nozzle is prone to position deviation during cap carrying.

[0006] To achieve the above object, the application adopts the following technical scheme: a power lithium battery cap loading equipment, comprising: a clamping seat, a suction pipe for suction of the inner cavity of the clamping seat being installed on the side of the clamping seat; a suction disc being installed on the bottom of the clamping seat and being in communication with the inner cavity of the clamping seat; a central shaft being installed inside and having a synchronous gear; a synchronous gear rack arm being movably installed on the side of the clamping seat and being in meshing transmission with the synchronous gear; a connecting seat being installed at the end of the synchronous gear rack arm and being located on the outside of the clamping seat, and a centering push rod being installed on the connecting seat; a piston being fixedly installed on the outside of the synchronous gear rack arm and being in sealing fit with the clamping seat; when the suction pipe sucks the inner cavity of the clamping seat, the pressure in the inner cavity of the clamping seat is reduced, and the piston pulls the centering push rod to move synchronously towards the middle through the connecting seat until the centering push rod is adsorbed and fixed to the bottom of the suction disc, so that the coaxial arrangement of the battery cap and the clamping seat is realized.

[0007] Further, the number of the centering push rods is multiple, the multiple centering push rods are arranged in a ring shape at equal angles, and the center of the ring shape is located on the central axis of the clamping seat.

[0008] Further, a torsional spring is fixedly connected between the outside of the central shaft and the inside of the clamping seat.

[0009] Further, a spot welding assembly is fixedly installed on the bottom of the clamping seat, an electrode head at the bottom of the spot welding assembly is located above the suction disc, and a detection spring is connected between the suction disc and the spot welding assembly.

[0010] Further, a stop switch located above the suction disc is fixedly installed at the bottom of the spot welding assembly, and the stop switch realizes the stop of the whole machine after being pressed.

[0011] Further, a synchronous disc for directional movement of a guide rod is arranged at the top of the clamping seat, the centering push rod is movably installed on the top of the guide frame and the synchronous disc, and a return spring is connected between the top of the synchronous disc and the top of the guide rod.

[0012] Further, a limit gear is fixedly installed at the top of the central shaft, a connecting top rod is fixedly installed on the inside of the synchronous disc, and the rotation of the central shaft is locked after the connecting top rod abuts against the limit gear.

[0013] Further, a detection gear rack arranged in the direction of the center line of the clamping seat is fixedly installed at the bottom of the outside of the centering push rod, and the teeth of the detection gear rack are isosceles triangles.

[0014] Further, the suction cup is installed at the bottom of the clamping seat by a directional frame, and the bottom of the clamping seat is communicated with the bottom of the directional frame by a communication pipe, so that the inner cavity of the suction cup is communicated with the communication pipe when the suction cup is lowered to the bottom limit.

[0015] Further, the top of the directional frame is provided with a gas vent hole communicated with the outside and a one-way air outlet valve installed on one side of the gas vent hole, and the bottom of the central shaft is fixedly provided with a reset disc capable of sealing the gas vent hole, and the surface of the reset disc is provided with a communication hole.

[0016] The present application has the following beneficial effects:

[0017] The power lithium battery cap loading equipment provided by the present application first stably adsorbs the battery cap through the bottom of the suction cup. At the same time, the alignment push rods are installed on the four sides of the clamping seat. The alignment push rods can move towards the central shaft of the clamping seat, and in the process of moving towards, the side of the alignment push rod will contact the outside of the battery cap, so as to accurately limit the battery cap.

[0018] With the continuous advancement of the alignment push rods, the circular center line surrounded by the four alignment push rods, the center line of the battery cap and the center line of the clamping seat will be adjusted to be on the same straight line. Through the alignment of the central axis, the equipment can ensure that the clamping seat can always keep accurate synchronization with the battery cap in the subsequent movement process, so as to avoid any possible deviation or shaking.

[0019] Finally, on the basis of the alignment of the central axis of the clamping seat and the battery cap, the equipment can stably and accurately drive the battery cap to move to the end of the lithium battery and realize accurate assembly with the lithium battery. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which constitute a part of this specification, illustrate embodiments of the present disclosure and serve to explain the principles of the present disclosure.

[0021] Referring to the drawings, the present application can be more clearly understood in conjunction with the following detailed description, in which:

[0022] Figure 1 It is a schematic diagram of the overall external three-dimensional structure of the present application;

[0023] Figure 2 It is a schematic diagram of the overall internal planar cross-sectional structure of the present application;

[0024] Figure 3 It is Figure 2 It is a schematic diagram of the enlarged structure of the part at E in the middle;

[0025] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the clamping seat of the present application;

[0026] Figure 5The installation position and the schematic diagram of the three-dimensional structure of the connecting seat of the present application;

[0027] Figure 6 The installation position and the schematic diagram of the three-dimensional structure of the suction cup of the present application;

[0028] Figure 7 The schematic diagram of the three-dimensional structure of the alignment push rod of the present application.

[0029] In the figure: 1, clamping seat; 2, suction cup; 200, air vent; 201, detection spring; 3, synchronous disc; 300, reset spring; 301, connecting top rod; 4, center shaft; 401, limit gear; 402, synchronous gear; 403, torsional spring; 5, synchronous gear row arm; 501, piston; 6, connecting seat; 7, alignment push rod; 701, detection gear row; 8, battery cap; 9, lithium battery; 10, spot welding assembly; 11, stop switch; 12, air extraction pipe; 13, communication pipe; 14, one-way air outlet valve; 15, reset turntable; 150, communication hole. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Embodiment one, please refer to Figure 1 and Figure 4 As can be seen, the clamping seat 1 is provided with a cuboid mounting rack outside, which can be fixed on the corresponding driving component, such as a mechanical hand, by using the mounting rack. As shown in Figure 2 , the clamping seat 1 is fixedly installed with an air extraction pipe 12 connected with the inner cavity at the side, which is generally connected with an external air suction assembly, such as a vacuum pump. The inner cavity of the clamping seat 1 is sucked by using the vacuum pump, so that the inside of the clamping seat 1 is in a relatively low pressure state, which is convenient for subsequent adsorption and handling work of the battery cap 8.

[0032] The clamping seat 1 is installed with a suction cup 2 at the bottom, from Figure 2 and Figure 6 As can be seen, the inner cavity of the suction cup 2 is connected with the inner cavity of the clamping seat 1, and in the process of handling the battery cap 8, the suction cup 2 is pasted to the top of the battery cap 8 to adsorb and handle the battery cap 8. On this basis, from Figure 2 、 Figure 4 and Figure 5It can be seen that the center shaft 4 is movably installed inside the clamping seat 1, and the synchronous gear 402 is fixedly installed outside the center shaft 4 in the inner cavity of the clamping seat 1. Correspondingly, the synchronous gear row arm 5 is movably installed outside the clamping seat 1 and is in meshing transmission with the synchronous gear 402. The connecting seat 6 is fixedly installed at the end of the synchronous gear row arm 5 and outside the clamping seat 1, and the alignment push rod 7 is installed on the connecting seat 6. Figure 1 and Figure 6 It can be seen that the number of alignment push rods 7 is four, and the actual arrangement number can be adjusted as needed. The multiple alignment push rods 7 are arranged outside the clamping seat 1, and the multiple alignment push rods 7 are arranged in a ring shape with the center of the ring being on the center axis of the clamping seat 1. Figure 5 As can be seen from the figure, the piston 501 is fixedly installed outside the synchronous gear row arm 5 and is sealed with the clamping seat 1. When the pressure in the inner cavity of the clamping seat 1 is reduced, the piston 501 can drag the synchronous gear row arm 5 to approach the center part of the clamping seat 1. Under normal circumstances, the torsional spring 403 is fixedly connected between the outer side of the center shaft 4 and the inner side of the clamping seat 1. Under the elastic force of the torsional spring 403, the synchronous gear row arm 5 extends outward. At this time, the ring formed by the four alignment push rods 7 has the maximum diameter.

[0033] When it is necessary to transport the battery cap 8, the vacuum pump uses the suction pipe 12 to suck the inside of the clamping seat 1, so that the pressure in the inner cavity of the clamping seat 1 is reduced. On the one hand, the battery cap 8 can be adsorbed by the suction cup 2; on the other hand, the piston 501 drags the synchronous gear row arm 5 to approach the middle part of the clamping seat 1 due to the reduction of the pressure in the inner cavity of the clamping seat 1. Since the four synchronous gear row arms 5 are all in meshing transmission with the synchronous gear 402, the four synchronous gear row arms 5 outside the clamping seat 1 will be synchronously approached. From Figure 1 and Figure 2 It can be seen that the battery cap 8 is circular in shape, and the bottom of the battery cap 8 is designed with an outer edge capable of wrapping the top of the lithium battery 9, so that after the battery cap 8 is connected with the lithium battery 9, the battery cap 8 can effectively protect the end of the lithium battery 9.

[0034] Since the four alignment push rods 7 are synchronously approached to the middle part, the four alignment push rods 7 will finally reach the outside of the battery cap 8. Combined with the fact that the battery cap 8 is circular in shape, the center of the ring formed by the multiple alignment push rods 7, the center of the battery cap 8 and the center of the clamping seat 1 are finally on the same straight line. The advantage of this design is that the position coordinates of the center axis of the clamping seat 1 can be easily obtained. When the center line of the battery cap 8 coincides with the center line of the clamping seat 1, the battery cap 8 can be more easily attached to the lithium battery 9, thereby facilitating the subsequent connection of the battery cap 8 and the lithium battery 9.

[0035] On this basis, in order to further realize the effective connection between the battery cap 8 and the lithium battery 9, the application adopts the spot welding mode, but is not limited to other modes that can realize the connection between the two. From Figure 2 and Figure 6 It can be seen that the spot welding assembly 10 is fixedly installed at the bottom of the clamping seat 1, the electrode head at the bottom of the spot welding assembly 10 is located above the suction cup 2, and the detection spring 201 is connected between the suction cup 2 and the spot welding assembly 10. Under normal circumstances, the detection spring 201 pushes the suction cup 2 to move downward, forcing the suction cup 2 to relatively move away from the bottom of the clamping seat 1, and at the same time, the bottom surface of the suction cup 2 also relatively moves away from the electrode head on the spot welding assembly 10. When the connected battery cap 8 and lithium battery 9 need to be welded, the suction cup 2 is pushed downward by the clamping seat 1, and the battery cap 8 is further pressed on the end of the lithium battery 9. During this process, as the suction cup 2 and the clamping seat 1 relatively approach, the detection spring 201 is further pressed, and the connection strength between the battery cap 8 and the lithium battery 9 is further increased. When the electrode head on the spot welding assembly 10 reaches the top of the battery cap 8, in order to prevent the clamping seat 1 from moving downward too much, the stop switch 11 is combined Figure 2 and Figure 6 It can be seen that the stop switch 11 is fixedly installed at the bottom of the spot welding assembly 10 and located above the suction cup 2. When the electrode head on the spot welding assembly 10 extends from the suction cup 2, the suction cup 2 will abut against the stop switch 11, the stop switch 11 generates an electrical signal and feeds back to the control system, thereby avoiding the electrode head from being damaged due to excessive pressure caused by the clamping seat 1 moving downward too much.

[0036] Finally, after the battery cap 8 and the lithium battery 9 are welded by the electrode head, the clamping seat 1 is moved away from the lithium battery 9 by the mechanical hand, thereby completing the capping work of the lithium battery 9.

[0037] Example two is further improved on the basis of example one. Please refer to Figure 2 、 Figure 4 and Figure 5 It can be seen that the clamping seat 1 has the synchronous disc 3 which moves up and down in a direction by the guide rod, and the top of the alignment push rod 7 is movably installed with the synchronous disc 3 by the guide frame. When the alignment push rod 7 moves along the radial direction of the clamping seat 1 following the synchronous gear rack arm 5, the top of the alignment push rod 7 also moves along the synchronous disc 3. The top of the synchronous disc 3 and the top of the guide rod are connected with the reset spring 300. Under normal circumstances, the reset spring 300 is pushed by the elastic force, forcing the synchronous disc 3 to move downward to the bottom limit, and finally making the bottom of the synchronous disc 3 abut against the top of the clamping seat 1.

[0038] From Figure 2 and Figure 4It can be seen that the top of the center shaft 4 is fixedly installed with a limit gear 401, and the inner side of the synchronous disc 3 is fixedly installed with a connecting top rod 301. When the synchronous disc 3 moves axially upward along the center shaft 4, the connecting top rod 301 can move to the tooth groove of the outer side of the limit gear 401. Since the synchronous disc 3 is limited by the two guide rods and cannot rotate, when the connecting top rod 301 reaches the inside of the limit gear 401, the limit gear 401 and the center shaft 4 are also limited from rotating.

[0039] In actual application, the alignment push rod 7 can only reciprocate up and down along the connecting seat 6. Figure 2 、 Figure 4 and Figure 7 It can be seen that the outer bottom of the alignment push rod 7 is fixedly installed with a detection tooth row 701 arranged towards the center line of the clamping seat 1. The tooth shape of the detection tooth row 701 is an isosceles triangle.

[0040] Under normal circumstances, the battery cap 8 is placed on the conveying belt for transportation. When the battery cap 8 needs to be clamped, in order to prevent the extension of the alignment push rod 7 from causing the suction cup 2 to be not easy to adsorb the battery cap 8, in combination with Figure 2 、 Figure 3 and Figure 5 It can be seen that the suction cup 2 is installed at the bottom of the clamping seat 1 by means of a directional frame. More specifically, the directional frame is fixed at the top of the clamping seat 1, and the suction cup 2 can move at the bottom of the directional frame. As can be seen from Figure 2 , the top of the communication pipe 13 communicates with the inner cavity of the clamping seat 1, and the outside passes through the bottom of the directional frame. Only when the suction cup 2 is completely lowered to the bottom, the inner cavity of the suction cup 2 will communicate with the communication pipe 13, as shown in Figure 2 . Similarly, when the suction cup 2 is raised, the side of the suction cup 2 will block the communication pipe 13. As can be seen from Figure 3 , the top of the directional frame is provided with a gas vent hole 200 communicating with the outside and a one-way air outlet valve 14 installed on one side of the gas vent hole 200. The one-way air outlet valve 14 can realize one-way discharge of the airflow in the inner cavity of the directional frame. Correspondingly, the bottom of the center shaft 4 is fixedly installed with a reset disc 15 capable of blocking the gas vent hole 200, and the surface of the reset disc 15 is provided with a communication hole 150. Under normal circumstances, the center shaft 4 is restored to normal by the elastic force of the torsional spring 403. At this time, the alignment push rod 7 extends outward, the communication hole 150 and the gas vent hole 200 are communicated, and the outside and the inner cavity of the directional frame are forced to communicate with each other.

[0041] When the battery cap 8 on the conveying belt is grabbed, the suction pipe 12 does not suck the inner cavity of the clamping seat 1 at this time. When the clamping seat 1 moves to the above of the battery cap 8 with the suction cup 2, the clamping seat 1 is controlled to move vertically downward by the mechanical hand. In this process, the alignment push rod 7 first contacts the conveying belt and pushes the synchronous disc 3 upward to compress the return spring 300 as the synchronous disc 3 continuously moves downward. The connecting top rod 301 moves to the outside of the limiting gear 401, thereby limiting the movement of the central shaft 4. When the suction cup 2 is attached to the battery cap 8 and further moves downward, the upper pressure detection spring 201 of the suction cup 2 finally reaches the stop switch 11, which stops the downward movement of the clamping seat 1. Then, the inner cavity of the clamping seat 1 is sucked by the suction pipe 12. Since the central shaft 4 is limited from rotating at this time, the alignment push rod 7 does not approach the center of the clamping seat 1 during the upward movement of the clamping seat 1.

[0042] When the clamping seat 1 continuously moves upward, the inner cavity of the suction cup 2 is communicated with the communication pipe 13 after the suction cup 2 moves to the bottom. The battery cap 8 is sucked by the suction cup 2. When the clamping seat 1 further moves upward, the height of the battery cap 8 is relatively located above the detection tooth row 701. Then, when the connecting top rod 301 is separated from the limiting gear 401, the rotation of the synchronous gear 402 is released. After the piston 501 drags the synchronous tooth row arm 5 to approach the middle part of the clamping seat 1, the battery cap 8 is centered and aligned by the alignment push rod 7, so as to ensure that the center line of the battery cap 8 coincides with the center line of the clamping seat 1.

[0043] After the battery cap 8 is moved to the above of the lithium battery 9 by the clamping seat 1, the clamping seat 1 moves downward with the suction cup 2 and the alignment push rod 7. In this process, the detection tooth row 701 at the bottom of the alignment push rod 7 moves downward and positions the lithium battery 9. If the battery cap 8 and the lithium battery 9 are not aligned, the alignment push rod 7 will be stopped at the end of the lithium battery 9. As the clamping seat 1 moves downward, the alignment push rod 7 pushes the synchronous disc 3 upward to compress the return spring 300. The connecting top rod 301 is again clamped in the limiting gear 401. Furthermore, as the clamping seat 1 further moves downward, the bottom of the battery cap 8 is stopped on the detection tooth row 701. Since the connecting top rod 301 locks the limiting gear 401 at this time, the alignment push rod 7 cannot extend outward. As the clamping seat 1 continuously moves downward, the detection tooth row 701 limits the downward movement of the suction cup 2. After the clamping seat 1 moves downward, the suction cup 2 approaches the stop switch 11, and the downward movement of the clamping seat 1 is stopped, so as to avoid that the clamping seat 1 excessively moves downward when the battery cap 8 and the lithium battery 9 are not aligned.

[0044] When the battery cap 8 and the lithium battery 9 are completely aligned, the alignment push rod 7 is separated from the lithium battery 9, and the connecting top rod 301 is separated from the limiting gear 401. The piston 501 drags the synchronous tooth row arm 5 to move to the middle of the clamping seat 1, and the battery cap 8 is centered and aligned by the alignment push rod 7. The center line of the battery cap 8 coincides with the center line of the clamping seat 1. Figure 2 Figure 2 Figure 3 Figure 2 Figure 4 Figure 5 Figure 2 Figure 4 Figure 2 Figure 4 Figure 7 Figure 2 Figure 3 Figure 5 Figure 2 Figure 2 Figure 3 Figure 2 Figure 2 Figure 3 Figure 2 FigureAs shown, with the further downward movement of the clamping seat 1, the suction cup 2 will reach the stop switch 11, and then the battery cap 8 and the lithium battery 9 will be welded by the electrode head on the spot welding assembly 10. During this process, when the suction cup 2 contacts the stop switch 11, the suction cup 2 moves upward relative to the orientation frame, causing the airflow in the inner cavity of the orientation frame to be quickly discharged from the one-way air outlet valve 14. At the same time, the centering push rod 7 moves towards the middle of the clamping seat 1, and the center shaft 4 synchronously drives the reset turntable 15 to rotate, causing the air vent hole 200 to be blocked. Therefore, the inner cavity of the orientation frame is in a relatively sealed state, and the suction cup 2 cannot move downward. After the battery cap 8 and the lithium battery 9 are welded, the suction cup 2 and the battery cap 8 are separated during the vertical upward movement of the clamping seat 1, and the bottom of the communication pipe 13 is blocked by the outside of the suction cup 2. The negative pressure in the clamping seat 1 acts on the piston 501, and the centering push rod 7 still moves towards the middle of the clamping seat 1. With the continuous upward movement of the clamping seat 1, the detection tooth row 701 will pass through the battery cap 8 and abut against the battery cap 8. If the battery cap 8 and the lithium battery 9 are firmly welded, the detection tooth row 701 will be relatively far away from the battery cap 8 due to the influence of the tooth-shaped inclined surface, and finally will be separated from the battery cap 8. Conversely, if the battery cap 8 and the lithium battery 9 are not firmly welded, the detection tooth row 701 will lift the battery cap 8 from the lithium battery 9.

[0045] Finally, when the detection tooth row 701 is separated from the lithium battery 9, the suction pipe 12 no longer sucks the inner cavity of the clamping seat 1, and the inner cavity of the clamping seat 1 is equal to the external pressure. The center shaft 4 is restored to the original state under the action of the torsional spring 403, and the entire device returns to the normal state described above.

Claims

1. A power lithium battery cap loading equipment, characterized in that, The utility model relates to a centering device for battery cap, including: Clamping seat (1) is installed with suction pipe (12) for the suction of the inner chamber of clamping seat (1) on the side, and suction disc (2) is installed on the bottom and is communicated with the inner chamber of clamping seat (1), and center shaft (4) is installed inside, and center shaft (4) is provided with synchronous gear (402) on it, Synchronous gear rack arm (5) is movably installed on the side of clamping seat (1) and is engaged with synchronous gear (402) to drive, and the end of synchronous gear rack arm (5) is provided with connecting seat (6) on the outside of clamping seat (1), and the locating push rod (7) is installed on connecting seat (6), and the outside of synchronous gear rack arm (5) is fixedly provided with piston (501), and piston (501) is sealed with clamping seat (1), When suction pipe (12) sucks the inner chamber of clamping seat (1), the pressure of the inner chamber of clamping seat (1) is reduced, and piston (501) will pull locating push rod (7) to move towards the middle through connecting seat (6) simultaneously, until locating push rod (7) is attached to the bottom of suction disc (2) and adheres to fixed battery cap (8), so that the coaxial arrangement of battery cap (8) and clamping seat (1) is realized, The outside of center shaft (4) is fixedly connected with torsion spring (403) between the inside of clamping seat (1), The bottom of clamping seat (1) is fixedly provided with spot welding assembly (10), the electrode head of spot welding assembly (10) is located above suction disc (2), and detection spring (201) is connected between suction disc (2) and spot welding assembly (10), The bottom of spot welding assembly (10) is fixedly provided with stop switch (11) located above suction disc (2), and stop switch (11) will stop the downward movement of clamping seat (1) after being pressed, The top of clamping seat (1) is provided with synchronous disc (3) moving in the direction of guide rod, and the top of locating push rod (7) is movably installed with synchronous disc (3) through guide frame, The top of center shaft (4) is fixedly provided with limit gear (401), The bottom of locating push rod (7) is fixedly provided with detection gear rack (701) arranged towards the center line of clamping seat (1).

2. The power lithium battery cap loading equipment according to claim 1, characterized in that, The number of locating push rod (7) is multiple, and the multiple locating push rod (7) is arranged in a ring shape with equal angles, and the center of the ring shape is on the center axis of clamping seat (1).

3. The power lithium battery cap loading equipment according to claim 1, characterized in that, Reset spring (300) is connected between the top of synchronous disc (3) and the top of guide rod.

4. The power lithium battery cap feeding device according to claim 3, characterized in that, The inside of synchronous disc (3) is fixedly provided with connecting top rod (301), and the rotation of center shaft (4) is locked after connecting top rod (301) is attached to limit gear (401).

5. The power lithium battery cap loading device according to claim 4, wherein, The tooth shape of detection gear rack (701) is isosceles triangle.

6. The power lithium battery cap loading device according to claim 4, wherein, Suction disc (2) is installed on the bottom of clamping seat (1) through directional frame, the bottom of clamping seat (1) is communicated with the bottom of directional frame through communication pipe (13), and the inner chamber of suction disc (2) is communicated with communication pipe (13) when suction disc (2) moves downward to the bottom limit.

7. The power lithium battery cap loading device according to claim 6, wherein, The top of directional frame is provided with air vent (200) communicated with the outside and one-way air outlet valve (14) installed on one side of air vent (200), and reset disc (15) capable of plugging air vent (200) is fixedly installed on the bottom of center shaft (4), and the surface of reset disc (15) is provided with communication hole (150).

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