A kind of liquid injection production equipment of cylindrical power battery

Abstract

The application discloses a kind of liquid injection production equipment of cylindrical power battery, including including spring clip feed conveying line, feeding weighing handling manipulator, feeding manipulator, discharging weighing manipulator, discharging manipulator, discharge conveying line, four battery fixture transfer conveying lines, two battery liquid injection mechanism cleaning mechanisms, every two battery fixture transfer conveying lines between being equipped with cup seat assembly, two cup seat assemblies are equipped with cup fixture on, the end of four battery fixture transfer conveying line is equipped with static mechanism, and the end of discharge conveying line is equipped with nailing mechanism;The application has liquid injection function and cup cleaning function, using the liquid injection mode of cup injection, cup can be separated from liquid injection mechanism, it is convenient to clean cup, the application can batch liquid injection to battery, every battery fixture can place 324 electric cores, the number of cup corresponds with the number of electric core, can simultaneously realize 324 battery injection simultaneously.

Description

TECHNICAL FIELD

[0001] The present application relates to power battery production equipment, in particular to a kind of liquid injection production equipment of cylindrical power battery. BACKGROUND

[0002] The production process of power battery needs to be injected, and injection is the process of injecting electrolyte into the battery after encapsulation. Electrolyte provides a carrier for ion transport in the battery.

[0003] At present, the existing cylindrical power battery injection equipment generally realizes liquid preparation by the way of injection cup. After liquid preparation, electrolyte is injected into the battery through the injection cup. If the residual liquid is not cleaned, it will affect the effect of the next injection. Since the existing injection cup is integrated with the injection mechanism, when it is necessary to clean the residual liquid, the injection cup part needs to be controlled to flip by driving to make the injection cup stand in the state of flip, so as to facilitate cleaning. The cleaning method of this injection cup is relatively cumbersome and time-consuming, which affects the injection efficiency.

[0004] Therefore, the present application provides a kind of liquid injection production equipment of cylindrical power battery, which can realize injection by the way of sleeve cup. The sleeve cup can be separated from the injection mechanism. The separated sleeve cup can be cleaned quickly and conveniently, improving the injection efficiency. SUMMARY

[0005] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present application is to provide a kind of liquid injection production equipment of cylindrical power battery.

[0006] The purpose of the present application is achieved by the following technical scheme: a kind of liquid injection production equipment of cylindrical power battery, including spring clip feeding conveying line, feeding weighing and carrying manipulator, feeding manipulator, discharging weighing manipulator, discharging manipulator, discharging conveying line, four battery jig transfer conveying lines, two battery injection mechanism cleaning mechanisms, sleeve cup seat assembly is arranged between every two battery jig transfer conveying lines, sleeve cup jig is arranged on the two sleeve cup seat assemblies, the end of four battery jig transfer conveying lines is equipped with static mechanism, the end of discharging conveying line is equipped with nailing mechanism;One of the battery injection mechanism cleaning mechanisms is responsible for battery injection and sleeve cup cleaning of two battery jig transfer conveying lines. When the battery jig on one of the battery jig transfer conveying lines is full of batteries, the feeding manipulator carries the battery to another battery jig, and so on. Four battery jig transfer conveying lines can alternate feeding and discharging, reduce the waiting time of battery injection and static, and improve the efficiency.

[0007] The battery liquid injection mechanism cleaning mechanism comprises two corresponding first horizontal sliding rails, a sleeve cup liquid preparation mechanism and a sleeve cup cleaning mechanism capable of moving left and right along the two first horizontal sliding rails, and the sleeve cup seat assembly is located between the sleeve cup liquid preparation mechanism and the sleeve cup cleaning mechanism.

[0008] The upper feeding, weighing and carrying manipulator, the upper feeding manipulator, the lower feeding, weighing and carrying manipulator, and the lower feeding manipulator are arranged on two second horizontal sliding rails, each of which is provided with a second rack, the upper feeding, weighing and carrying manipulator takes 9 batteries from the magazine feeding conveying line at a time and places them on a weighing station for upper feeding, weighing and upper feeding code scanning, the upper feeding manipulator takes 9 batteries from the weighing station at a time and places them on a battery jig conveyed by the battery jig intermediate conveying line, after the battery jig is filled with batteries, the battery jig intermediate conveying line controls the battery jig to move to the position directly below the sleeve cup liquid preparation mechanism, the sleeve cup liquid preparation mechanism takes a sleeve cup jig from the sleeve cup seat assembly and covers the sleeve cup jig on the battery jig for vacuumizing and liquid injection, after the batteries on the battery jig are injected with liquid, the battery jig is controlled by the battery jig intermediate conveying line to move to the rest mechanism for resting, after the sleeve cup jig is taken out by the sleeve cup liquid preparation mechanism, the battery jig is controlled by the battery jig intermediate conveying line to move to the position for upper feeding, the lower feeding, weighing and carrying manipulator takes 9 batteries from the battery jig at a time and places them on a lower feeding, weighing station for weighing and code scanning, the lower feeding manipulator takes 9 batteries from the lower feeding, weighing station at a time and places them on the discharging conveying line, the discharging conveying line controls the battery jig to move to the position of the nail driving mechanism for nail driving, after the batteries are driven with nails, the battery jig is carried by the discharging carrying manipulator to the discharging conveying line or the NG conveying line, the sleeve cup cleaning mechanism takes the sleeve cup jig from the sleeve cup seat assembly and carries the sleeve cup jig to a cleaning position for cleaning the sleeve cup jig, after the sleeve cup jig is cleaned, the sleeve cup cleaning mechanism carries the sleeve cup jig back to the sleeve cup seat assembly to wait for the sleeve cup liquid preparation mechanism to take it out for liquid injection. The upper feeding, weighing and carrying manipulator, the upper feeding manipulator, the lower feeding, weighing and carrying manipulator, and the lower feeding manipulator each comprise an upper mounting plate, the two ends of the upper mounting plate are each provided with a horizontal movement control servo motor, the output shaft of the horizontal movement control servo motor is provided with a third gear, the third gear is in meshing transmission with the second rack, the middle part of the upper mounting plate of the upper feeding, weighing and carrying manipulator, the upper feeding manipulator, the lower feeding, weighing and carrying manipulator, and the lower feeding manipulator is provided with a Z-axis lifting servo module, the Z-axis lifting servo module controls a Y-axis servo module to move, the Y-axis servo module controls a battery clamp mounting plate to move, and 9 battery clamps are arranged at intervals on the battery clamp mounting plate. Each battery jig can hold 324 batteries.

[0009] As an improvement to the liquid injection production equipment for the cylindrical power battery of the present invention, the cup preparation mechanism includes a vacuum plate and an upper mounting plate. The upper mounting plate is provided with a vacuum plate lifting control servo module and a liquid injection needle lateral movement control servo module. The liquid injection needle lateral movement control servo module controls the lateral movement of the liquid injection needle mechanism. Side mounting plates are provided on both sides of the vacuum plate. Locking pin mechanisms are provided on the side mounting plates. Horizontal movement control motors are provided at both ends of the upper mounting plate. Gears are provided on the output shafts of the horizontal movement control motors. Racks are provided on both of the two first horizontal movement slide rails. The racks mesh with the gears for transmission.

[0010] The cup holder is provided with locking seats at both ends that cooperate with the locking pin mechanism. The initial position of the cup holder is on the cup holder. When the cup preparation mechanism moves to directly above the cup holder assembly, the vacuum plate lifting control servo module controls the vacuum plate to descend, the locking pin mechanism locks on the locking seat, and the vacuum plate lifting control servo module controls the vacuum plate to rise to remove the cup holder and cover the battery holder with the cup holder.

[0011] After each filling, the cup holder is transported back to the cup holder assembly by the cup preparation mechanism. The cup cleaning mechanism then moves to the cup holder assembly, removes the cup holder, and moves it directly above the residual liquid collection tray. The cleaning mechanism cleans the residual liquid inside the cups by blowing air, and the cleaned residual liquid falls into the collection tray for collection. The cup holder fixture has 324 cups arranged in a square pattern, each cup corresponding to a battery position.

[0012] As an improvement to the liquid injection production equipment for the cylindrical power battery of the present invention, the cup fixture is provided with 324 cups spaced apart, each cup has a cap at the bottom, and each cup has a vacuum pipe inside. The lower end of the vacuum pipe extends from the bottom of the cup and the upper end extends from the top of the cup. The upper end of the vacuum pipe is provided with a spring and a coupling interface.

[0013] When the sleeve cup is placed on the battery of the battery fixture, the lower end of the vacuum tube is inserted into the vacuum hole of the battery. The bottom of the sleeve cup is provided with an outlet hole and the top is provided with an inlet hole. The outlet hole is connected to the inlet hole on the battery.

[0014] The cup fixture has U-shaped brackets at both ends, and a limiting rod is provided inside the U-shaped bracket. The battery fixture has elastic hooks on both sides corresponding to the positions of the U-shaped brackets. When the cup fixture is connected to the battery fixture, the elastic hooks are hooked on the limiting rods of the U-shaped brackets.

[0015] The cup fixture is provided with alignment guide sleeves on the middle of both the front and rear sides. The cup holder mounting plate is provided with first alignment guide rods on both the front and rear sides corresponding to the positions of the alignment guide sleeves. When the cup fixture is placed on the cup holder, the first alignment guide rods are inserted into the alignment guide sleeves.

[0016] The residual liquid receiving tray is mounted on a bracket. The middle of the front and rear sides of the residual liquid receiving tray is respectively provided with a second alignment guide rod. When the cup cleaning fixture is cleaned, the cup cleaning mechanism moves the cup cleaning fixture to the position of the residual liquid receiving tray, and the second alignment guide rod is inserted into the alignment guide sleeve.

[0017] The depth of the residual liquid receiving tray gradually increases from one side to the other, and a drain pipe is provided at the bottom of the end with the greater depth of the residual liquid receiving tray.

[0018] As an improvement to the liquid injection production equipment for the cylindrical power battery of the present invention, the vacuum plate is provided with a plurality of vacuum suction nozzles arranged at intervals, and the plurality of vacuum suction nozzles located in the same row are connected to the same vacuum tube. Each vacuum suction nozzle is provided with a connector and a second spring at its bottom. The connector can be connected to the connector of the vacuum tube. The vacuum plate is provided with a plurality of liquid injection needle perforations arranged at intervals.

[0019] The injection needle mechanism includes a cylinder mounting plate, on which a lifting control cylinder is provided. The lifting control cylinder controls the movement of an injection pump mounting plate. Multiple injection pumps are arranged on the injection pump mounting plate, and each injection pump is connected to an injection needle. Multiple injection needle valve mounting plates are provided on one side of the injection pump mounting plate. Three injection needle valves are arranged at intervals on each injection needle valve mounting plate, and each injection needle valve is connected to three injection pumps. When the injection needle injects liquid, it can pass through the injection needle perforation and align with the liquid inlet on the sleeve cup.

[0020] The locking mechanism includes an upper locking cylinder disposed on one side of the side mounting plate and a locking block disposed on the other side of the side mounting plate. The piston rod of the upper locking cylinder is connected to the middle of the locking block. A locking pin is horizontally provided at the lower end of the locking block. The locking pin passes through the side mounting plate. When the cup fixture is picked up or put down, the upper locking cylinder controls the movement of the locking block.

[0021] The lock base is provided with a pin hole, and when locked, the lock pin passes into the pin hole.

[0022] As an improvement to the liquid injection production equipment for the cylindrical power battery of the present invention, the cup cleaning mechanism includes an air nozzle mounting plate and a second upper mounting plate. The air nozzle mounting plate is provided with a plurality of air nozzles arranged at intervals. The air nozzle mounting plate is provided with a second side plate on both sides. The second side plate is provided with a second locking pin mechanism. The second locking pin mechanism has the same structure as the locking pin mechanism. The middle of the second upper mounting plate is provided with a lifting control servo module. The lifting control servo module controls the lifting of the air nozzle mounting plate. The number of air nozzles is the same as the number of cups.

[0023] The second upper mounting plate is provided with a second transverse control motor at each end. The output shaft of the second transverse control motor is provided with a second gear. The second gear meshes with the rack for transmission. The two second transverse control motors simultaneously control the movement of the cup cleaning mechanism.

[0024] Both the vacuum plate lifting control servo module and the lifting control servo module include a module profile. A transmission screw is provided on the module profile. A first synchronous pulley is provided at one end of the transmission screw. A lifting control motor mounting base is provided at the upper end of the module profile. A lifting control servo motor is provided on the lifting control motor mounting base. A second synchronous pulley is provided on the output shaft of the lifting control servo motor. The second synchronous pulley is connected to the first synchronous pulley through a synchronous belt. A screw nut is screwed onto the transmission screw. The screw nut is connected to the lifting slider. A lifting guide rod is connected to the lifting slider.

[0025] As an improvement to the liquid injection production equipment for the cylindrical power battery of the present invention, the stationary mechanism includes a cylinder support, an upper cylinder and a lower cylinder on the cylinder support, a transfer plate inside the lower cylinder, a transfer conveyor line and a limiting component on the transfer plate, the limiting component being located at the end of the transfer conveyor line, and the upper cylinder and the lower cylinder being fixed by a toothed groove structure when they are engaged.

[0026] The lower end opening edge of the upper cylinder body is provided with multiple engaging protrusions at intervals, and the inner edge of the lower cylinder body is provided with multiple limiting protrusions at intervals, with a tooth groove between every two limiting protrusions.

[0027] The cylinder support is also provided with a lower cylinder rotation control cylinder, which is located on the outside of the lower cylinder and the piston rod end of the lower cylinder rotation control cylinder is connected to the outer side of the lower cylinder.

[0028] The cylinder support is also provided with two lifting control cylinders for controlling the lifting and lowering of the upper cylinder. The piston rod ends of the two lifting control cylinders are connected to the lugs on the outside of the upper cylinder.

[0029] The outer side of the upper cylinder is covered with a guide sleeve, the guide sleeve is connected to a guide rod, and the guide rod is mounted on the cylinder support;

[0030] The cylinder block support is also equipped with a vacuum pipe and a pressurization pipe.

[0031] As an improvement to the liquid injection production equipment for the cylindrical power battery of the present invention, when the upper cylinder and the lower cylinder are engaged, the engaging protrusion is embedded in the position corresponding to the tooth groove. When the engaging protrusion is fully embedded in the tooth groove, the lower cylinder rotation control cylinder controls the lower cylinder to rotate a certain angle so that the engaging protrusion is located directly below the limiting protrusion, thereby restricting the movement of the upper cylinder.

[0032] When the upper cylinder body separates from the lower cylinder body, the lower cylinder body rotation control cylinder controls the lower cylinder body to rotate in the opposite direction by a certain angle, so that the engaging protrusion aligns with the tooth groove, and the lifting control cylinder controls the upper cylinder body to rise and open.

[0033] As an improvement to the liquid injection production equipment for the cylindrical power battery of the present invention, the transfer conveyor line includes two parallel roller mounting plates, both of which have outer side plates on their outer surfaces, and multiple rollers are arranged on both the two roller mounting plates and the two outer side plates. The height of the rollers on the outer side plates is greater than the height of the rollers on the roller mounting plates.

[0034] The limiting component includes a limiting bracket, on which multiple baffles and sensors are spaced apart; when the battery fixture enters to the limit position along the transfer conveyor line, the sensors detect the position of the battery fixture.

[0035] The upper end of the cylinder support is also provided with a locking mechanism. When the upper cylinder rises to its maximum height, the locking mechanism locks the upper cylinder. The locking mechanism includes a locking cylinder and a locking fixing plate. The locking fixing plate is provided with two limiting plates, and the two limiting plates are provided with pin holes. The upper end of the upper cylinder is provided with a locking plate, and the locking plate is provided with a through hole. One of the limiting plates is provided with a position sensor. When the locking plate of the upper cylinder extends between the two limiting plates, the position sensor senses the locking plate, and the locking cylinder controls the piston rod to pass through the pin hole and the through hole.

[0036] The cylinder block support is also provided with a plurality of guide wheel assemblies at intervals, and the plurality of guide wheel assemblies are arranged along the circumference of the lower cylinder block;

[0037] The guide wheel assembly includes a guide wheel bracket, on which a plurality of guide wheels are spaced apart, and the guide wheels are in contact with the outer side surface of the lower cylinder.

[0038] As an improvement to the liquid injection production equipment for the cylindrical power battery of the present invention, the nailing mechanism includes a rotating nailing mechanism and a nail supply mechanism. The nail supply mechanism picks up glue nails and arranges them on the glue nail platform. The rotating nailing mechanism picks up multiple glue nails from the glue nail platform at one time. The rotating nailing mechanism uses a method of pressing down and rotating the glue nails while nailing.

[0039] The rotary nailing mechanism includes a first mounting bracket, on which a horizontal servo module is mounted. The horizontal servo module controls the movement of a lifting servo module, which in turn controls the movement of a lifting plate. The lifting plate is equipped with a front and rear control servo motor. The bottom of the lifting plate is connected to a mounting plate via a slide rail and a slider. Multiple nail-removing tubes are arranged at intervals on the mounting plate. The lower end of each nail-removing tube extends out of the mounting plate, and the upper end of each nail-removing tube is equipped with a synchronous pulley. Two adjacent synchronous pulleys are connected by a synchronous belt.

[0040] The mounting plate is also equipped with two rotary control servo motors. The output shafts of the two rotary control servo motors are equipped with active synchronous pulleys. One of the rotary control servo motors controls the rotation of the four nail-removing tubes, and the other rotary control servo motor controls the rotation of the five nail-removing tubes. The active synchronous pulley is connected to the synchronous pulley on one of the nail-removing tubes through a second synchronous belt.

[0041] As an improvement to the liquid injection production equipment for the cylindrical power battery of the present invention, a battery clamping and positioning mechanism is provided on the corresponding surface of the rotary nailing mechanism. The battery clamping and positioning mechanism is slidably mounted on the second mounting bracket. The second mounting bracket is provided with a position adjustment component, which adjusts the position of the battery clamping and positioning mechanism.

[0042] The battery pressing and positioning mechanism includes a vertical plate, on which a battery pressing cylinder and a linear guide rail are provided. The linear guide rail is connected to a sliding plate via a linear slider. The piston rod of the battery pressing cylinder is connected to the sliding plate. The sliding plate is provided with a second linear guide rail, an upper air spring, and a lower air spring. The second linear guide rail is connected to the pressing plate via a second linear slider.

[0043] The position adjustment assembly includes an adjustment handwheel, on which a first pulley is provided, and on which a second mounting bracket is provided a second pulley. The second pulley is connected to the first pulley via a synchronous belt, and the battery clamping and positioning mechanism is connected to the synchronous belt via a connecting block.

[0044] The nail supply mechanism includes a machine base, on which a hopper, a nail-picking robot, and a nail positioning mesh are provided. The hopper is mounted on a vibrator, and the nails vibrated down from the hopper fall onto the nail positioning mesh. The nail-picking robot picks up three nails at a time from the nail positioning mesh and places them on the nail platform.

[0045] A camera is installed above the machine. The camera takes pictures of the glue nails on the glue nail mesh to determine the position of the glue nails, and sends the position information of the glue nails to the glue nail picking robot. The glue nail picking robot picks up the glue nails according to the position of the glue nails provided by the camera.

[0046] The glue-removing robot includes an X-axis servo module, a Y-axis servo module, and a Z-axis servo module. The X-axis servo module controls the movement of the Y-axis servo module, the Y-axis servo module controls the movement of the Z-axis servo module, and the Z-axis servo module controls the movement of the second lifting plate. The bottom of the second lifting plate is provided with a glue-removing suction tube mounting plate, and three glue-removing suction tubes are arranged at intervals on the glue-removing suction tube mounting plate.

[0047] The beneficial effects of this invention are as follows: This invention employs four stationary workstations and four battery fixture transfer conveyor lines. Each pair of battery fixture transfer conveyor lines is connected, and each battery injection and cleaning mechanism corresponds to two battery fixture transfer conveyor lines for battery injection and cup cleaning. The four battery fixture transfer conveyor lines can alternately load and unload, reducing waiting time for injection and stationary placement. This invention has both injection and cup cleaning functions. It uses a cup-based injection method, and the cups can be separated from the injection mechanism for easy cleaning. This invention can batch inject batteries; each battery fixture can hold 324 cells, and the number of cups corresponds to the number of cells, enabling simultaneous injection of 324 batteries. Injection efficiency is high. The cups can be cleaned after each injection, improving injection quality. Attached Figure Description

[0048] Figure 1 This is a first perspective view of the present invention;

[0049] Figure 2 This is a second perspective view of the present invention;

[0050] Figure 3 This is a top view of the present invention;

[0051] Figure 4 This is a schematic diagram of the structure in which two battery fixture transfer and conveyor lines of the present invention are connected together;

[0052] Figure 5 This is a side view of two battery fixture transfer and conveyor lines of the present invention joined together;

[0053] Figure 6 This is a perspective view of the cleaning mechanism of the battery liquid injection mechanism of the present invention;

[0054] Figure 7 This is another perspective view of the cleaning mechanism of the battery liquid injection mechanism of the present invention;

[0055] Figure 8 This is a perspective view of the cup-shaped liquid preparation mechanism of the present invention;

[0056] Figure 9 This is a perspective view of the cup cleaning mechanism of the present invention;

[0057] Figure 10 This is a schematic diagram of the structure of the cup-shaped fixture of the present invention being fitted onto the battery fixture;

[0058] Figure 11 This is a front view of the cleaning mechanism of the battery liquid injection mechanism of the present invention;

[0059] Figure 12 This is a schematic diagram of the structure of the single sleeve cup of the present invention on a single battery;

[0060] Figure 13 This is a perspective view of the upper and lower cylinders of the static mechanism of the present invention after they are fastened together.

[0061] Figure 14 This is a perspective view of the upper and lower cylinders of the static mechanism of the present invention after separation.

[0062] Figure 15 This is a perspective view of the upper and lower cylinders of the static mechanism of the present invention after separation.

[0063] Figure 16 This is a perspective view of the nailing mechanism of the present invention;

[0064] Figure 17 This is a top view of the nailing mechanism of the present invention;

[0065] Figure 18 This is a perspective view of the rotating nailing mechanism of the nailing mechanism of the present invention;

[0066] Figure 19 This is a side view of the rotary nailing mechanism and the battery clamping and positioning mechanism of the present invention;

[0067] Figure 20 This is a schematic diagram of the rotation control part of the present invention;

[0068] Figure 21 This is a side view of the rotation control section of the present invention;

[0069] Figure 22 This is a perspective view of the nail feeding mechanism of the present invention. Detailed Implementation

[0070] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0071] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0072] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0073] like Figures 1-22 As shown, a liquid injection production equipment for cylindrical power batteries includes a magazine feeding conveyor line 1, a loading, weighing and handling robot 2, a loading robot 3, a unloading, weighing robot 4, an unloading robot 5, a discharge conveyor line 6, four battery fixture transfer conveyor lines 7, two battery liquid injection mechanism cleaning mechanisms 8, a cup holder assembly 9 between each two battery fixture transfer conveyor lines 7, and a cup holder 10 on each of the two cup holder assemblies 9. A stationary mechanism 11 is provided at the end of each of the four battery fixture transfer conveyor lines 7, and a nailing mechanism 12 is provided at the end of the discharge conveyor line 6. One of the battery liquid injection mechanism cleaning mechanisms 8 is responsible for the battery liquid injection and cup cleaning of two of the battery fixture transfer conveyor lines 7. When one of the battery jigs 13 on the battery jig transfer conveyor line 7 is full of batteries, the loading robot 3 moves the batteries to another battery jig 13. In this way, the four battery jig transfer conveyor lines 7 can alternate loading and unloading, reducing the waiting time for battery liquid filling and resting, and improving efficiency.

[0074] The battery filling mechanism cleaning mechanism 8 includes two corresponding first transverse slide rails 81, a cup preparation mechanism 82 and a cup cleaning mechanism 83 that can move left and right along the two first transverse slide rails 81, and a cup seat assembly 9 located between the cup preparation mechanism 82 and the cup cleaning mechanism 83; a residual liquid receiving tray 22 is provided below the cup cleaning mechanism 83.

[0075] The loading, weighing, and handling robots 2, 3, 4, and 5 are all mounted on two second transverse slide rails 14. Each of the two second transverse slide rails 14 is equipped with a second rack 15. The loading, weighing, and handling robot 2 picks up nine batteries at a time from the magazine feeding conveyor line 1 and places them at the weighing station 16 for loading, weighing, and barcode scanning. The loading robot 3 picks up nine batteries at a time from the weighing station 16 and places them on the battery fixture 13 of one of the battery fixture transfer conveyor lines 7. (The last sentence appears to be incomplete and possibly refers to a separate process.) After the battery fixture 13 is filled with batteries, the battery fixture transfer conveyor line 7 controls the battery fixture 13 to move directly below the cup-filling liquid preparation mechanism 82. The cup-filling liquid preparation mechanism 82 takes the cup-filling fixture 10 from the cup-filling seat assembly 9 and places the cup-filling fixture 10 on the battery fixture 13 for vacuum injection. After the batteries on the battery fixture 13 are injected with liquid, the battery fixture transfer conveyor line 7 controls the battery fixture 13 to move to the settling mechanism 11 for settling. After the settling mechanism 11 has been settling for a certain period of time, the battery fixture transfer conveyor line 7 will transfer the batteries... The fixture 13 is pulled out and conveyed to the bottom of the cup preparation mechanism 82. The cup preparation mechanism 82 removes the cup fixture 10 and transports it to the cup holder assembly 9. The battery fixture 13, from which the cup fixture 10 has been removed, is moved to the loading position by the battery fixture transfer conveyor line 7. The unloading and weighing robot 4 picks up 9 batteries at a time from the battery fixture 13 and places them on the unloading and weighing station 17 for weighing and scanning. The unloading robot 5 picks up 9 batteries at a time from the unloading and weighing station 17 and places them on the discharge conveyor line. 6. The discharge conveyor line 6 controls the battery positioning fixture 18 to move to the position of the nailing mechanism 12 to apply glue nails. After the battery is nailed, it is transported by the discharge handling robot 19 to the unloading conveyor line 20 or NG conveyor line 21. The cup cleaning mechanism 83 takes out the cup fixture 10 from the cup holder assembly 9 and transports the cup fixture 10 to the cleaning position to clean the cup fixture 10. After the cup fixture 10 is cleaned, it is transported back to the cup holder assembly 9 by the cup cleaning mechanism 83 to wait for the cup preparation mechanism 82 to take out the liquid for injection. The loading, weighing, and handling robots 2, 3, 4, and 5 all include an upper mounting plate. Each end of the upper mounting plate is equipped with a transverse control servo motor. A third gear is mounted on the output shaft of each servo motor, meshing with a second rack for transmission. A Z-axis lifting servo module is located in the middle of the upper mounting plate of each robot. This Z-axis lifting servo module controls the movement of a Y-axis servo module, which in turn controls the movement of a battery clamp mounting plate. Nine battery clamps are arranged at intervals on the battery clamp mounting plate. Each battery clamp can hold 324 batteries. Nine battery positioning slots are arranged on the battery positioning fixture 19. The unloading robot 5 places and fixes the nine batteries it is handling in these battery positioning slots.

[0076] The cup holder assembly 9 includes a cup holder bracket 91, a cup holder mounting plate 92 is provided on the cup holder bracket 91, and a plurality of cup holders 93 are arranged at intervals on the cup holder mounting plate 92.

[0077] The battery fixture transfer conveyor line 7 includes a transfer conveyor track 71 and a battery fixture traction mechanism 72. Roller lines 73, guide rails 74, support plates 75, and a fourth rack 76 are respectively provided on both sides of the transfer conveyor track 71. Multiple ball bearings 77 are spaced apart on the support plate 75. The battery fixture 13 is supported on the ball bearings 77 and contacts the roller lines 73. The battery fixture traction mechanism 72 includes a traction motor mounting plate 721 and a docking plate 722. Traction motors 723 are respectively provided at both ends of the traction motor mounting plate 721. A fourth gear is provided on the output shaft of the traction motor 723, and the fourth gear meshes with the fourth rack 74 for transmission. A docking plate control cylinder 724 is provided in the middle of the traction motor mounting plate 721. The piston rod end of the docking plate control cylinder 724 is connected to the docking plate 722. The docking plate 722 is vertically connected to the traction motor mounting plate 721 via guide columns. Two sets of traction roller sets 725 are provided at one end of the docking plate 722. The traction motor mounting plate 721 is slidably connected to the guide rail 74 via a slider. Fixed cylinders 78 are installed on both sides of the transfer conveyor rail 71 at the liquid injection station and the material loading station. When the battery fixture traction mechanism 72 pulls the battery fixture 13 to the liquid injection station and the material loading station, the fixed cylinders 78 extend to fix the battery fixture 13. When the battery fixture traction mechanism 72 sends the battery fixture 13 into the stationary mechanism 11, the docking plate control cylinder 724 controls the docking plate 722 to descend, and the traction motor 723 controls the traction motor mounting plate 721 to exit the stationary mechanism 11.

[0078] Preferably, the cup preparation mechanism 82 includes a vacuum plate 8221 and an upper mounting plate 8222. The upper mounting plate 8222 is equipped with a vacuum plate lifting control servo module 8223 and a liquid injection needle lateral movement control servo module 8224. The liquid injection needle lateral movement control servo module 8224 controls the lateral movement of the liquid injection needle mechanism 8225. Side mounting plates 8226 are respectively provided on both sides of the vacuum plate 8221. The side mounting plates 8226 are equipped with a locking pin mechanism 8227. The two ends of the upper mounting plate 8222 are respectively equipped with lateral movement control motors 8228. The output shaft of the lateral movement control motors 8228 is equipped with a gear (not shown in the figure). Both lateral movement slides 81 are equipped with racks 101, and the racks 101 mesh with the gears for transmission. The liquid injection needle lateral movement control servo module 8224 includes a module crossbeam. The module crossbeam is equipped with a lead screw and a servo motor. The servo motor is connected to the lead screw through a coupling. The lead screw is connected to the liquid injection needle mechanism through a lead screw nut. When the injection needle mechanism 8225 injects liquid, the injection needle lateral movement control servo module 8224 controls the injection of liquid row by row.

[0079] The cup holder 10 has locking seats 51 at both ends that cooperate with the locking mechanism 8227. The initial position of the cup holder 10 is on the cup holder 93. When the cup preparation mechanism 82 moves directly above the cup holder assembly 9, the vacuum plate lifting control servo module 8223 controls the vacuum plate 8221 to descend, and the locking mechanism 8227 locks on the locking seat 51. The vacuum plate lifting control servo module 8223 then controls the vacuum plate 8221 to rise, remove the cup holder 10, and place the cup holder 10 on the battery holder 13. The number of batteries 61 on the battery holder 13 is the same as the number of cups 52. The cup holder 10 has 324 cups arranged in a square pattern, with each cup corresponding to a battery.

[0080] Preferably, the cup fixture 10 has 324 cups 52 arranged at intervals. Each cup 52 has a cover 53 at its bottom and a vacuum pipe 54 inside each cup 52. The lower end of the vacuum pipe 54 extends from the bottom of the cup and the upper end extends from the top of the cup 52. The upper end of the vacuum pipe 54 is provided with a spring 55 and a docking interface 56. The vacuum pipe 54 can be connected to the battery 61 to evacuate the battery. When liquid is injected, the vacuum in the battery can accelerate the flow of electrolyte in the cup 52 into the battery and increase the injection speed.

[0081] When the sleeve cup 52 is placed on the battery 61 of the battery fixture 13, the lower end of the vacuum tube 54 is inserted into the vacuum hole of the battery 61. The bottom of the sleeve cup 52 is provided with an outlet hole and the top is provided with an inlet hole. The outlet hole is connected to the inlet hole on the battery.

[0082] Preferably, a plurality of vacuum nozzles 82211 are arranged at intervals on the vacuum plate 8221. The plurality of vacuum nozzles 82211 located in the same row are connected to the same vacuum tube 82212. Each vacuum nozzle 82211 has a connector and a second spring at its bottom. The connector can be connected to the interface 56 of the vacuum tube 54.

[0083] Multiple injection needle perforations 82213 are arranged at intervals on the vacuum plate 8221.

[0084] Preferably, the injection needle mechanism 8225 includes a cylinder mounting plate 82251, on which a lifting control cylinder 82252 is provided. The lifting control cylinder 82252 controls the movement of an injection pump mounting plate 82253. Multiple injection pumps 82254 are arranged on the injection pump mounting plate 82253. Each injection pump 82254 is connected to an injection needle 82255. Multiple injection needle valve mounting plates 82256 are provided on one side of the injection pump mounting plate 82253. Three injection needle valves 82257 are arranged at intervals on each injection needle valve mounting plate 82256. Each injection needle valve 82257 is connected to three injection pumps 82254 through a pipe. When the injection needle 82255 injects liquid, it can pass through the injection needle through hole 82213 and align with the liquid inlet hole on the sleeve cup 52.

[0085] Preferably, the locking mechanism 8227 includes a locking cylinder 82271 disposed on one side of the side mounting plate and a locking block 82272 disposed on the other side of the side mounting plate. The piston rod of the locking cylinder 82271 is connected to the middle of the locking block 82272. The lower end of the locking block 82272 is provided with a locking pin, which passes through the side mounting plate. When the cup fixture 10 is picked up or put down, the locking cylinder 82271 controls the locking block 82272 to move.

[0086] The lock base 51 is provided with a pin hole 57. When locking, the lock pin passes into the pin hole 57.

[0087] Preferably, the cup holder 10 is provided with U-shaped brackets 58 at both ends, and a limiting rod 59 is provided inside the U-shaped bracket 58. The battery fixture 13 is provided with elastic hooks 62 on both sides corresponding to the positions of the U-shaped brackets 58. When the cup holder 10 and the battery fixture 13 are connected, the elastic hooks 62 hook onto the limiting rods 59 of the U-shaped brackets 57.

[0088] Preferably, the cup cleaning mechanism 83 includes an air nozzle mounting plate 8331 and a second upper mounting plate 8332. The air nozzle mounting plate 8331 is provided with a plurality of air nozzles 8333 arranged at intervals. The air nozzle mounting plate 8333 is provided with a second side plate 8334 on both sides. The second side plate 8334 is provided with a second locking pin mechanism 8335. The second locking pin mechanism 8335 has the same structure as the locking pin mechanism 8227. The middle part of the second upper mounting plate 8332 is provided with a lifting control servo module 8336. The lifting control servo module 8336 controls the lifting and lowering of the air nozzle mounting plate 8333. The number of air nozzles 8333 is the same as the number of cups 52.

[0089] Preferably, the two ends of the second upper mounting plate 8332 are respectively provided with a second transverse control motor 8337, and the output shaft of the second transverse control motor 8337 is provided with a second gear (not shown in the figure). The second gear meshes with the rack 101 for transmission, and the two second transverse control motors 8337 simultaneously control the movement of the cup cleaning mechanism 3.

[0090] Preferably, both the vacuum plate lifting control servo module 8323 and the lifting control servo module 8336 include a module profile. A transmission screw is provided on the module profile. A first synchronous pulley is provided at one end of the transmission screw. A lifting control motor mounting seat is provided at the upper end of the module profile. A lifting control servo motor is provided on the lifting control motor mounting seat. A second synchronous pulley is provided on the output shaft of the lifting control servo motor. The second synchronous pulley is connected to the first synchronous pulley through a synchronous belt. A screw nut is screwed onto the transmission screw. The screw nut is connected to the lifting slider. A lifting guide rod is connected to the lifting slider.

[0091] Preferably, the cup holder 10 is provided with alignment guide sleeves 50 at the middle of both the front and rear sides, and the cup holder mounting plate 92 is provided with first alignment guide rods 94 at the positions corresponding to the alignment guide sleeves 50 on both the front and rear sides. When the cup holder 10 is placed on the cup holder 93, the first alignment guide rods 94 are inserted into the alignment guide sleeves 50.

[0092] The residual liquid receiving tray 22 is mounted on a bracket 221. The middle part of the front and rear sides of the residual liquid receiving tray 22 is respectively provided with second alignment guide rods 222. When the cup fixture 10 is cleaned, the cup cleaning mechanism 83 moves the cup fixture 10 to the position of the residual liquid receiving tray 22, and the second alignment guide rods 222 are inserted into the corresponding alignment guide sleeves 50.

[0093] The depth of the residual liquid receiving tray 22 gradually increases from one side to the other, and a drain pipe 223 is provided at the bottom of the end of the residual liquid receiving tray 22 with greater depth.

[0094] Preferably, the stationary mechanism 11 includes a cylinder support 111, on which an upper cylinder 112 and a lower cylinder 113 are mounted. A transfer plate 114 is located inside the lower cylinder 113. The transfer plate 114 has a transfer conveyor line 115 and a limiting component 116. The limiting component 116 is located at the end of the transfer conveyor line 115. When the upper cylinder 112 and lower cylinder 113 are engaged, they are fixed by a toothed structure. The lower cylinder 113 is rotatably connected to the transfer plate 114.

[0095] Preferably, the lower end opening edge of the upper cylinder 112 is provided with a plurality of engaging protrusions 1121 spaced apart, and the inner edge of the lower cylinder 113 is provided with a plurality of limiting protrusions 1131 spaced apart, and a tooth groove 1132 is provided between every two limiting protrusions 1131.

[0096] The cylinder block support 111 is also provided with a lower cylinder block rotation control cylinder 117. The lower cylinder block rotation control cylinder 117 is located on the outside of the lower cylinder block 113, and the piston rod end of the lower cylinder block rotation control cylinder 117 is connected to the outer side of the lower cylinder block 113.

[0097] Preferably, the cylinder support 111 is also provided with two lifting control cylinders 118 for controlling the lifting of the upper cylinder 112, and the piston rod ends of the two lifting control cylinders 118 are connected to the ear seat 1122 on the outside of the upper cylinder 112.

[0098] The outer side cover of the upper cylinder 112 is provided with a guide sleeve 1123, the guide sleeve 1123 is connected to the guide rod 1124, and the guide rod 1124 is mounted on the cylinder bracket 111.

[0099] Preferably, when the upper cylinder 112 and the lower cylinder 113 are engaged, the engaging protrusion 1121 is inserted into the corresponding groove 1132. When the engaging protrusion 1121 is fully inserted into the groove 1132, the lower cylinder rotation control cylinder 117 controls the lower cylinder 113 to rotate at a certain angle, so that the engaging protrusion 1121 is located directly below the limiting protrusion 1131, thus restricting the movement of the upper cylinder 112. The lower cylinder rotation control cylinder 117 controls the lower cylinder 113 to rotate clockwise by an angle of 5 degrees to 10 degrees.

[0100] When the upper cylinder 112 separates from the lower cylinder 113, the lower cylinder rotation control cylinder 117 controls the lower cylinder 113 to rotate in the opposite direction by a certain angle, so that the engaging teeth 1121 align with the tooth grooves 1132, and the lifting control cylinder 118 controls the upper cylinder 112 to rise and open. The lower cylinder rotation control cylinder 117 controls the lower cylinder 113 to rotate counterclockwise by an angle of 5-10 degrees.

[0101] Preferably, the cylinder support 111 is also provided with a vacuuming pipe 119 and a pressurizing pipe 1110. The vacuuming pipe 119 and the pressurizing pipe 1110 alternately evacuate and pressurize the cylinder, which can accelerate the settling of the battery electrolyte.

[0102] Preferably, the transfer conveyor line 115 includes two parallel roller mounting plates 1151, and each of the two roller mounting plates 1151 has an outer side plate 1152. Multiple rollers 1153 are arranged on both the two roller mounting plates 1151 and the two outer side plates 1152. The height of the rollers on the outer side plates 1152 is greater than the height of the rollers on the roller mounting plates 1151.

[0103] Preferably, the limiting component 116 includes a limiting bracket 1161, on which a plurality of baffles 1162 and sensors (not shown) are spaced apart.

[0104] When the battery fixture 13 enters the limit position along the transfer conveyor line 115, the sensor detects the position of the battery fixture.

[0105] Preferably, the upper end of the cylinder block bracket 111 is also provided with a locking mechanism 1112, which locks the upper cylinder block 112 when the upper cylinder block 112 rises to the limit height position.

[0106] Preferably, the locking mechanism 1112 includes a locking cylinder 11121 and a locking fixing plate 11122. The locking fixing plate 11122 is provided with two limiting plates 11123, and the two limiting plates 11123 are provided with pin holes. The upper end of the upper cylinder body 112 is provided with a locking plate 1125, and the locking plate 1125 is provided with a through hole. One of the limiting plates 11123 is provided with a position sensor. When the locking plate 1125 of the upper cylinder body extends between the two limiting plates 11123, the position sensor senses the locking plate 1125, and the locking cylinder 11121 controls the piston rod to pass through the pin hole and the through hole.

[0107] Preferably, a plurality of guide wheel assemblies 1113 are also provided at intervals on the cylinder block support 111, and the plurality of guide wheel assemblies 1113 are arranged along the circumference of the lower cylinder block 113;

[0108] The guide wheel assembly 1113 includes a guide wheel bracket 11131, and a plurality of guide wheels 11132 are spaced apart on the guide wheel bracket 11131. The guide wheels 11132 are in contact with the outer side of the lower cylinder 113.

[0109] Preferably, the nailing mechanism 12 includes a rotary nailing mechanism 121 and a nail feeding mechanism 122. The nail feeding mechanism 122 picks up adhesive nails and arranges them on the adhesive nail platform 123. The rotary nailing mechanism 121 picks up multiple adhesive nails from the adhesive nail platform 123 at a time. The rotary nailing mechanism 121 nails by pressing down and rotating the adhesive nails simultaneously. Nine adhesive nail positioning holes 1231 are arranged at intervals on the adhesive nail platform 123.

[0110] Preferably, the rotary nailing mechanism 121 includes a first mounting bracket 1211, on which a transverse servo module 1212 is mounted. The transverse servo module 1212 controls the movement of a lifting servo module 1213, which in turn controls the movement of a lifting plate 1214. A front-to-back control servo motor 1215 is mounted on the lifting plate 1214. A mounting plate 1216 is connected to the bottom of the lifting plate 1214 via a slide rail and a slider. Multiple nail-removing tubes 1217 are arranged at intervals on the mounting plate 1216. The lower end of each nail-removing tube 1217 extends from the mounting plate 1216, and a synchronous pulley 1218 is mounted on the upper end of each tube. Adjacent synchronous pulleys 1218 are connected via a synchronous belt 1219. The output shaft of the front-to-back control servo motor 1215 is connected to a lead screw, which is connected to the mounting plate via a lead screw nut. Both the transverse servo module 1212 and the lifting servo module 1213 include module profiles. The module profiles are equipped with a transmission screw and a servo motor. The servo motor is connected to the transmission screw through a coupling. The transmission screw is equipped with a screw nut. The screw nut on the transverse servo module 1212 is connected to the lifting servo module 1213. The screw nut on the lifting servo module 1213 is connected to the lifting plate 1214.

[0111] Preferably, the mounting plate 1216 is also provided with two rotary control servo motors 1210. The output shafts of the two rotary control servo motors 1210 are provided with active synchronous pulleys. One rotary control servo motor 1210 controls the rotation of four nail-removing tubes 1217, and the other rotary control servo motor 1210 controls the rotation of five nail-removing tubes 1217. The active synchronous pulley is connected to the synchronous pulley 1218 on one of the nail-removing tubes 1217 through a second synchronous belt.

[0112] Preferably, the corresponding surface of the rotary nailing mechanism 121 is provided with a battery clamping and positioning mechanism 124. The battery clamping and positioning mechanism 124 is slidably mounted on the second mounting bracket 125. The second mounting bracket 125 is provided with a position adjustment component 126, which adjusts the position of the battery clamping and positioning mechanism 124.

[0113] Preferably, the battery clamping and positioning mechanism 124 includes a vertical plate 1241, on which a battery clamping cylinder 1242 and a linear guide rail 1243 are provided. The linear guide rail 1243 is connected to a sliding plate 1244 via a linear slider. The piston rod of the battery clamping cylinder 1242 is connected to the sliding plate 1244. The sliding plate 1244 is provided with a second linear guide rail 1245, an upper gas spring 1246 and a lower gas spring 1247. The second linear guide rail 1245 is connected to a pressure plate 1248 via a second linear slider.

[0114] Preferably, the position adjustment assembly 126 includes an adjustment handwheel 1261, on which a first pulley is provided, and on the second mounting bracket 125 a second pulley is provided. The second pulley and the first pulley are connected by a synchronous belt, and the battery clamping and positioning mechanism 4 is connected to the synchronous belt by a connecting block.

[0115] Preferably, the nail supply mechanism 122 includes a machine base 1221, on which a hopper 1222, a nail-picking robot 1223, and a nail positioning mesh plate 1224 are provided. The hopper 1222 is mounted on a vibrator 1225. The nails vibrated down from the hopper 1222 fall onto the nail positioning mesh plate 1224. The nail-picking robot 1223 picks up three nails from the nail positioning mesh plate 1224 at a time and places them on the nail platform 123. After three picks, a total of nine nails are placed on the nail platform 123.

[0116] Preferably, a camera 127 is provided above the machine 1221. The camera 127 takes pictures of the glue nails on the glue nail mesh 1224 to determine the position of the glue nails, and sends the position information of the glue nails to the glue nail picking robot 23. The glue nail picking robot 1223 picks up the glue nails according to the position of the glue nails provided by the camera 127.

[0117] Preferably, the glue-removing robot 1223 includes an X-axis servo module 12231, a Y-axis servo module 12232, and a Z-axis servo module 12233. The X-axis servo module 12231 controls the movement of the Y-axis servo module 12232, the Y-axis servo module 12232 controls the movement of the Z-axis servo module 12233, and the Z-axis servo module 12233 controls the movement of the second lifting plate 12234. The bottom of the second lifting plate 12234 is provided with a glue-removing suction tube mounting plate, and three glue-removing suction tubes are arranged at intervals on the glue-removing suction tube mounting plate. The X-axis servo module 12231, Y-axis servo module 12232, and Z-axis servo module 12233 all include module profiles. The module profiles are equipped with transmission screws and servo motors. The servo motors are connected to the transmission screws via couplings. The transmission screws are equipped with screw nuts. The screw nuts on the X-axis servo module 12231 are connected to the Y-axis servo module 12232. The screw nuts on the Y-axis servo module 12232 are connected to the Z-axis servo module 12233. The screw nuts on the Z-axis servo module 12233 are connected to the second lifting plate.

[0118] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and structure of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid injection production device for a cylindrical power battery, characterized in that, It includes a magazine feeding conveyor line, a loading, weighing and handling robot, a loading robot, a unloading, weighing robot, an unloading robot, a discharge conveyor line, four battery fixture transfer conveyor lines, two battery liquid injection and cleaning mechanisms, a cup holder assembly between each two battery fixture transfer conveyor lines, a cup holder fixture on each of the two cup holder assemblies, a stationary mechanism at the end of each of the four battery fixture transfer conveyor lines, and a nailing mechanism at the end of the discharge conveyor line. The battery liquid filling mechanism cleaning mechanism includes two corresponding first transverse slide rails, a cup preparation mechanism and a cup cleaning mechanism that can move left and right along the two first transverse slide rails, and the cup seat assembly is located between the cup preparation mechanism and the cup cleaning mechanism. The loading, weighing, and handling robots are all mounted on two second transverse slide rails. The loading, weighing, and handling robots pick up nine batteries at a time from the magazine feed conveyor and place them at the weighing station for loading, weighing, and barcode scanning. The loading robot picks up nine batteries at a time from the weighing station and places them on a battery fixture conveyed by one of the battery fixture transfer conveyors. After a battery fixture is full, the battery fixture transfer conveyor controls the battery fixture to move directly below the cup-filling liquid preparation mechanism. The cup-filling liquid preparation mechanism removes the cup fixture from the cup holder assembly and places it on the battery fixture for vacuum injection. After the batteries on the battery fixture are injected, the battery fixture transfer conveyor controls the battery fixture to move to the settling mechanism for settling. After a certain settling time, the battery fixture transfer conveyor pulls out the battery fixture and transports it to the designated location. Below the cup preparation mechanism, the cup preparation mechanism removes the cup fixture and transports it to the cup holder assembly. The battery fixture with the cup fixture removed is moved to the loading position by the battery fixture transfer conveyor line. The unloading and weighing robot picks up 9 batteries at a time from the battery fixture and places them on the unloading and weighing station for weighing and scanning. The unloading robot picks up 9 batteries at a time from the unloading and weighing station and places them on the discharge conveyor line. The discharge conveyor line controls the battery positioning fixture to move to the nailing mechanism for nailing. After the batteries are nailed, they are transported to the unloading conveyor line or NG conveyor line by the discharge handling robot. The cup cleaning mechanism removes the cup fixture from the cup holder assembly and transports it to the cleaning position for cleaning. After cleaning, the cup fixture is transported back to the cup holder assembly by the cup cleaning mechanism to wait for the cup preparation mechanism to take out the liquid for injection. The cup preparation mechanism includes a vacuum plate and an upper mounting plate. The upper mounting plate is equipped with a vacuum plate lifting control servo module and a liquid injection needle lateral movement control servo module. The liquid injection needle lateral movement control servo module controls the lateral movement of the liquid injection needle mechanism. Side mounting plates are respectively provided on both sides of the vacuum plate. The side mounting plates are equipped with locking pin mechanisms. Horizontal movement control motors are respectively provided at both ends of the upper mounting plate. Gears are provided on the output shafts of the horizontal movement control motors. Racks are provided on both of the two first horizontal movement slide rails. The racks mesh with the gears for transmission. The cup holder is provided with locking seats at both ends that cooperate with the locking pin mechanism. The initial position of the cup holder is on the cup holder. When the cup preparation mechanism moves to directly above the cup holder assembly, the vacuum plate lifting control servo module controls the vacuum plate to descend, the locking pin mechanism locks on the locking seat, and the vacuum plate lifting control servo module controls the vacuum plate to rise to remove the cup holder and cover the battery holder with the cup holder. After each injection, the cup fixture is transported back to the cup holder assembly by the cup preparation mechanism. The cup cleaning mechanism moves to the position of the cup holder assembly, removes the cup fixture, and transports it directly above the residual liquid receiving tray. The cup cleaning mechanism cleans the residual liquid in the cup by blowing air, and the cleaned residual liquid falls onto the residual liquid receiving tray for collection. The cup fixture has multiple cups arranged at intervals. Each cup has a cap at its bottom and a vacuum tube inside. The lower end of the vacuum tube extends from the bottom of the cup and the upper end extends from the top of the cup. The upper end of the vacuum tube is provided with a spring and a coupling interface. When the sleeve cup is placed on the battery of the battery fixture, the lower end of the vacuum tube is inserted into the vacuum hole of the battery. The bottom of the sleeve cup is provided with an outlet hole and the top is provided with an inlet hole. The outlet hole is connected to the inlet hole on the battery. The cup fixture has U-shaped brackets at both ends, and a limiting rod is provided inside the U-shaped bracket. The battery fixture has elastic hooks on both sides corresponding to the positions of the U-shaped brackets. When the cup fixture is connected to the battery fixture, the elastic hooks are hooked on the limiting rods of the U-shaped brackets. The cup holder fixture is provided with alignment guide sleeves on the front and rear sides of the middle, and the cup holder mounting plate is provided with first alignment guide rods on the front and rear sides corresponding to the positions of the alignment guide sleeves. When the cup holder fixture is placed on the cup holder, the first alignment guide rods are inserted into the alignment guide sleeves. The residual liquid receiving tray is mounted on a bracket. The middle of the front and rear sides of the residual liquid receiving tray is respectively provided with a second alignment guide rod. When the cup cleaning fixture is cleaned, the cup cleaning mechanism moves the cup cleaning fixture to the position of the residual liquid receiving tray, and the second alignment guide rod is inserted into the alignment guide sleeve. The depth of the residual liquid receiving tray gradually increases from one side to the other, and a drain pipe is provided at the bottom of the end with the greater depth of the residual liquid receiving tray.

2. The liquid injection production equipment for cylindrical power batteries according to claim 1, characterized in that, The vacuum plate is provided with a plurality of vacuum nozzles arranged at intervals. The plurality of vacuum nozzles located in the same row are connected to the same vacuum tube. Each vacuum nozzle is provided with a connector and a second spring at its bottom. The connector can be connected to the connector of the vacuum tube. The vacuum plate is provided with a plurality of injection needle perforations arranged at intervals. The injection needle mechanism includes a cylinder mounting plate, on which a lifting control cylinder is provided. The lifting control cylinder controls the movement of an injection pump mounting plate. Multiple injection pumps are arranged on the injection pump mounting plate, and each injection pump is connected to an injection needle. Multiple injection needle valve mounting plates are provided on one side of the injection pump mounting plate. Three injection needle valves are arranged at intervals on each injection needle valve mounting plate, and each injection needle valve is connected to three injection pumps. When the injection needle injects liquid, it can pass through the injection needle perforation and align with the liquid inlet on the sleeve cup. The locking mechanism includes an upper locking cylinder disposed on one side of the side mounting plate and a locking block disposed on the other side of the side mounting plate. The piston rod of the upper locking cylinder is connected to the middle of the locking block. A locking pin is horizontally provided at the lower end of the locking block. The locking pin passes through the side mounting plate. When the cup fixture is picked up or put down, the upper locking cylinder controls the movement of the locking block. The lock base is provided with a pin hole, and when locked, the lock pin passes into the pin hole.

3. The liquid injection production equipment for cylindrical power batteries according to claim 1, characterized in that, The cup cleaning mechanism includes an air nozzle mounting plate and a second upper mounting plate. Multiple air nozzles are arranged at intervals on the air nozzle mounting plate. Second side plates are provided on both sides of the air nozzle mounting plate. A second locking pin mechanism is provided on the second side plate. The second locking pin mechanism has the same structure as the first locking pin mechanism. A lifting control servo module is provided in the middle of the second upper mounting plate. The lifting control servo module controls the lifting of the air nozzle mounting plate. The number of air nozzles is the same as the number of cups. The second upper mounting plate is provided with a second transverse control motor at each end. The output shaft of the second transverse control motor is provided with a second gear. The second gear meshes with the rack for transmission. The two second transverse control motors simultaneously control the movement of the cup cleaning mechanism. Both the vacuum plate lifting control servo module and the lifting control servo module include a module profile. A transmission screw is provided on the module profile. A first synchronous pulley is provided at one end of the transmission screw. A lifting control motor mounting base is provided at the upper end of the module profile. A lifting control servo motor is provided on the lifting control motor mounting base. A second synchronous pulley is provided on the output shaft of the lifting control servo motor. The second synchronous pulley is connected to the first synchronous pulley through a synchronous belt. A screw nut is screwed onto the transmission screw. The screw nut is connected to the lifting slider. A lifting guide rod is connected to the lifting slider.

4. The liquid injection production equipment for cylindrical power batteries according to claim 1, characterized in that, The stationary mechanism includes a cylinder support, on which an upper cylinder and a lower cylinder are provided. A transfer plate is provided inside the lower cylinder. A transfer conveyor line and a limiting component are provided on the transfer plate. The limiting component is located at the end of the transfer conveyor line. When the upper cylinder and the lower cylinder are engaged, they are fixed by a toothed structure. The lower end opening edge of the upper cylinder body is provided with multiple engaging protrusions at intervals, and the inner edge of the lower cylinder body is provided with multiple limiting protrusions at intervals, with a tooth groove between every two limiting protrusions. The cylinder support is also provided with a lower cylinder rotation control cylinder, which is located on the outside of the lower cylinder and the piston rod end of the lower cylinder rotation control cylinder is connected to the outer side of the lower cylinder. The cylinder support is also provided with two lifting control cylinders for controlling the lifting and lowering of the upper cylinder. The piston rod ends of the two lifting control cylinders are connected to the lugs on the outside of the upper cylinder. The outer side of the upper cylinder is covered with a guide sleeve, the guide sleeve is connected to a guide rod, and the guide rod is mounted on the cylinder support; The cylinder block support is also equipped with a vacuum pipe and a pressurization pipe.

5. The liquid injection production equipment for cylindrical power batteries according to claim 4, characterized in that, When the upper cylinder body and the lower cylinder body are engaged, the engaging protrusion is inserted into the tooth groove. When the engaging protrusion is fully inserted into the tooth groove, the lower cylinder body rotation control cylinder controls the lower cylinder body to rotate a certain angle so that the engaging protrusion is located directly below the limiting protrusion, thereby restricting the movement of the upper cylinder body. When the upper cylinder body separates from the lower cylinder body, the lower cylinder body rotation control cylinder controls the lower cylinder body to rotate in the opposite direction by a certain angle, so that the engaging protrusion aligns with the tooth groove, and the lifting control cylinder controls the upper cylinder body to rise and open.

6. The liquid injection production equipment for cylindrical power batteries according to claim 5, characterized in that, The transfer conveyor line includes two parallel roller mounting plates. The outer sides of the two roller mounting plates are provided with outer side plates. Multiple rollers are arranged on both the two roller mounting plates and the two outer side plates. The height of the rollers on the outer side plates is greater than the height of the rollers on the roller mounting plates. The limiting component includes a limiting bracket, on which multiple baffles and sensors are spaced apart; when the battery fixture enters to the limit position along the transfer conveyor line, the sensors detect the position of the battery fixture. The upper end of the cylinder support is also provided with a locking mechanism. When the upper cylinder rises to its maximum height, the locking mechanism locks the upper cylinder. The locking mechanism includes a locking cylinder and a locking fixing plate. The locking fixing plate is provided with two limiting plates, and the two limiting plates are provided with pin holes. The upper end of the upper cylinder is provided with a locking plate, and the locking plate is provided with a through hole. One of the limiting plates is provided with a position sensor. When the locking plate of the upper cylinder extends between the two limiting plates, the position sensor senses the locking plate, and the locking cylinder controls the piston rod to pass through the pin hole and the through hole. The cylinder block support is also provided with a plurality of guide wheel assemblies at intervals, and the plurality of guide wheel assemblies are arranged along the circumference of the lower cylinder block; The guide wheel assembly includes a guide wheel bracket, on which a plurality of guide wheels are spaced apart, and the guide wheels are in contact with the outer side surface of the lower cylinder.

7. The liquid injection production equipment for cylindrical power batteries according to claim 1, characterized in that, The nailing mechanism includes a rotary nailing mechanism and a nail feeding mechanism. The nail feeding mechanism picks up glue nails and arranges them on the glue nail platform. The rotary nailing mechanism picks up multiple glue nails from the glue nail platform at one time. The rotary nailing mechanism uses a method of pressing down and rotating the glue nails while nailing. The rotary nailing mechanism includes a first mounting bracket, on which a horizontal servo module is mounted. The horizontal servo module controls the movement of a lifting servo module, which in turn controls the movement of a lifting plate. The lifting plate is equipped with a front and rear control servo motor. The bottom of the lifting plate is connected to a mounting plate via a slide rail and a slider. Multiple nail-removing tubes are arranged at intervals on the mounting plate. The lower end of each nail-removing tube extends out of the mounting plate, and the upper end of each nail-removing tube is equipped with a synchronous pulley. Two adjacent synchronous pulleys are connected by a synchronous belt. The mounting plate is also equipped with two rotary control servo motors. The output shafts of the two rotary control servo motors are equipped with active synchronous pulleys. One of the rotary control servo motors controls the rotation of the four nail-removing tubes, and the other rotary control servo motor controls the rotation of the five nail-removing tubes. The active synchronous pulley is connected to the synchronous pulley on one of the nail-removing tubes through a second synchronous belt.

8. The liquid injection production equipment for cylindrical power batteries according to claim 7, characterized in that, The rotating nailing mechanism is provided with a battery clamping and positioning mechanism on its corresponding surface. The battery clamping and positioning mechanism is slidably mounted on the second mounting bracket. The second mounting bracket is provided with a position adjustment component, which adjusts the position of the battery clamping and positioning mechanism. The battery pressing and positioning mechanism includes a vertical plate, on which a battery pressing cylinder and a linear guide rail are provided. The linear guide rail is connected to a sliding plate via a linear slider. The piston rod of the battery pressing cylinder is connected to the sliding plate. The sliding plate is provided with a second linear guide rail, an upper air spring, and a lower air spring. The second linear guide rail is connected to the pressing plate via a second linear slider. The position adjustment assembly includes an adjustment handwheel, on which a first pulley is provided, and on which a second mounting bracket is provided a second pulley. The second pulley is connected to the first pulley via a synchronous belt, and the battery clamping and positioning mechanism is connected to the synchronous belt via a connecting block. The nail supply mechanism includes a machine base, on which a hopper, a nail-picking robot, and a nail positioning mesh are provided. The hopper is mounted on a vibrator, and the nails vibrated down from the hopper fall onto the nail positioning mesh. The nail-picking robot picks up three nails at a time from the nail positioning mesh and places them on the nail platform. A camera is installed above the machine. The camera takes pictures of the glue nails on the glue nail mesh to determine the position of the glue nails, and sends the position information of the glue nails to the glue nail picking robot. The glue nail picking robot picks up the glue nails according to the position of the glue nails provided by the camera. The glue-removing robot includes an X-axis servo module, a Y-axis servo module, and a Z-axis servo module. The X-axis servo module controls the movement of the Y-axis servo module, the Y-axis servo module controls the movement of the Z-axis servo module, and the Z-axis servo module controls the movement of the second lifting plate. The bottom of the second lifting plate is provided with a glue-removing suction tube mounting plate, and three glue-removing suction tubes are arranged at intervals on the glue-removing suction tube mounting plate.

Images