A new liquid injection machine

Abstract

This utility model relates to the field of battery electrolyte filling machine technology, and in particular to a novel electrolyte filling machine, comprising a chassis, within which are respectively provided a battery loading and weighing mechanism, a fixture conveying track, multiple electrolyte injection mechanisms located on both sides of the fixture conveying track, multiple vacuum machines with different processes, and a battery unloading and weighing mechanism. The fixture conveying track is used to transport battery trays, and its first and last ends intersect with the battery loading and weighing mechanism and the battery unloading and weighing mechanism, respectively. Fixture positioning and stopping mechanisms are evenly spaced along the conveying direction of the fixture conveying track, each including a first lifting frame with a first chain and a motor drive assembly. Each electrolyte injection mechanism and each vacuum machine is provided with a corresponding fixed fixture for receiving and transporting battery trays. This utility model, through this configuration, can transport battery trays to the corresponding processing station according to processing needs, offering good flexibility and significantly improving battery production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery liquid filling machine technology, and in particular to a novel liquid filling machine. Background Technology

[0002] The cylindrical battery-specific liquid injection machine is suitable for quantitative liquid injection of secondary lithium-ion cylindrical batteries. The equipment has high working efficiency, is easy to install and debug, and has good liquid injection accuracy and consistency. It is one of the important pieces of equipment in the cylindrical battery production process.

[0003] However, some battery-specific liquid injection machines are set up as an assembly line, with an entire production line, which requires processing step by step according to the set processing technology. This assembly line type of battery-specific liquid injection machine cannot change or adjust the processing technology, resulting in poor flexibility. In order to overcome the shortcomings of the existing technology, this utility model proposes a new type of liquid injection machine, which aims to provide a battery liquid injection device with simple structure, convenient operation and high flexibility. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a novel liquid injection machine, comprising: a casing, and a liquid injection device disposed within the casing. A battery loading and weighing mechanism includes a battery conveying track, a conveying platform at the end of the battery conveying track for gradually conveying batteries, a loading electronic scale at the end of the conveying platform, a vision detection component and a battery rotation component that adjusts the battery position after receiving signals from the vision detection component on the upper side of the conveying platform, the conveying platform gradually conveys the battery to the vision detection component, the battery rotation component and the loading electronic scale, a first fixture lifting platform and a loading robot arm that places the batteries on the loading electronic scale into the battery tray of the first fixture lifting platform are provided on the side of the loading electronic scale; The fixture conveying track is used to convey battery trays. The first end of the fixture conveying track intersects with the first fixture lifting platform. Fixture positioning and stopping mechanisms are set at equal intervals along the conveying direction of the fixture conveying track. Multiple electrolyte injection mechanisms are arranged on the side along the conveying direction of the fixture conveying track and correspond to the fixture positioning and stopping mechanism. Each mechanism includes a storage tank for storing electrolyte and a multi-axis mobile robot located above it. The multi-axis mobile robot has multiple liquid dispensing nozzles arranged side by side, and each liquid dispensing nozzle is connected to the liquid pump of the storage tank through a pipeline. Multiple vacuum pumps with different processes are arranged on the side along the conveying direction of the fixture conveying track and correspond to the fixture positioning and stopping mechanism; The battery unloading and weighing mechanism includes a second fixture lifting platform that intersects with the end of the fixture conveying track. Two unloading electronic scales and an unloading robot for conveying the liquid-filled and vacuum-evacuated batteries to the unloading electronic scales are provided on the side of the second fixture lifting platform. An unloading conveying component is provided on the side of the unloading robot. The fixture positioning and stopping mechanism includes a first lifting frame, which is equipped with a first chain and a motor drive assembly for conveying the battery tray out of the first lifting frame. Each electrolyte injection mechanism and each vacuum pump is equipped with a fixture for receiving and delivering battery trays.

[0005] A further solution includes a jig return conveyor track, the two ends of which intersect with the first jig lifting platform and the second jig lifting platform, respectively. The track includes a hollow frame, with a rotating shaft with sprockets at both ends of the hollow frame, and a chain with rollers at both ends of the two rotating shafts. The hollow frame is equipped with a motor that drives the rotating shafts to rotate.

[0006] A further embodiment: The conveying platform includes a frame, a material moving platform is provided on the top of the frame, a linear guide rail is provided inside the frame, a moving seat is slidably mounted on the linear guide rail, the frame is provided with a first push cylinder to drive the moving seat to reciprocate along the moving seat, a first lifting cylinder is provided at both ends of the moving seat, a lifting plate is provided at the output end of the two first lifting cylinders, and three finger cylinders are arranged sequentially along the length of the lifting plate, the two finger ends of the three finger cylinders extend towards the upper side of the moving seat, the finger ends of the two finger cylinders are provided with extension clamps, and the extension clamps of the two finger cylinders face opposite directions, and the finger end of the middle finger cylinder is provided with a V-shaped groove clamp.

[0007] A further solution: The battery loading and weighing mechanism also includes a height adjustment component for adjusting the vision inspection component and the battery rotation component, as well as a baffle component located at the end of the battery conveying track. The baffle component includes a fixed frame and a retractable cylinder on the fixed frame. The output end of the retractable cylinder is provided with a baffle, and the end of the baffle is tapered. The fixed frame is provided with a first guide groove that slides with the baffle. The fixed frame is also provided with a guide block, and the guide block is provided with a second guide groove that matches the first guide groove. When the guide block and the fixed frame are closed, the first guide groove and the second guide groove form a guide tunnel for the baffle to slide.

[0008] A further solution: The fixture positioning and blocking mechanism also includes a fixed base plate and blocking components symmetrically arranged on the fixed base plate to block the battery tray. The blocking components are equipped with a bracket, and a U-shaped connecting platform is provided on the top of the bracket. A stop block is pivotally connected to the U-shaped connecting platform through a connecting shaft. The stop block is triangular in shape and is connected to a roller group through a rotating shaft. A second push cylinder with an output end connected to the stop block is provided in the bracket.

[0009] A further solution: A draining hopper is provided on the side of the fixed fixture below the multi-axis mobile robot, and the initial position of the multi-axis mobile robot is set in the draining hopper.

[0010] A further solution: The material conveying assembly includes a good product conveyor line and a defective product conveyor line. A guiding component intersects between the inlet ends of the good product conveyor line and the defective product conveyor line. The guiding component is equipped with a guiding track that communicates with the inlet ends of the good product conveyor line and the defective product conveyor line. A linear motion module is provided at the lower end of the guiding track. The linear motion module is equipped with a pusher block that slides along the guiding track. The pusher block has grooves on both sides that conform to the battery. An insert plate that penetrates into the guiding track is provided on one side of the guiding track, as well as a third push cylinder that drives the insert plate to move back and forth. The insert plate has an insert groove.

[0011] A further solution: Both the first jig lifting platform and the second jig lifting platform include a vertical moving module and a jig platform that is driven to rise and fall by the vertical moving module. The jig platform is equipped with a second chain and a motor drive assembly for pushing the battery tray. The jig platform is also equipped with two symmetrically arranged positioning components. The positioning components include a second lifting cylinder. The output end of the second lifting cylinder is equipped with a horizontal top plate. The horizontal top plate is symmetrically equipped with positioning pins for inserting the battery tray, and a pad is provided on the horizontal top plate located to the side of the positioning pins.

[0012] A further solution: The fixing fixture includes a support frame and a second lifting frame located within the support frame. The second lifting frame contains a third chain for sending the battery tray out of the second lifting frame and a motor drive assembly.

[0013] A further solution: The bottom of the first and second lifting frames is equipped with vertical guide rods around the perimeter, each vertical guide rod is equipped with a compression spring, and each vertical guide rod is equipped with a fixed linear bearing. The bottom of the first and second lifting frames is equipped with a third lifting cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting multiple vacuum pumps with different processes and multiple electrolyte injection mechanisms on the side of the fixture conveying track, and by setting a fixed fixture for each electrolyte injection mechanism and each vacuum pump to deliver and receive battery trays, and by setting a fixture positioning and stopping mechanism along the conveying direction of the fixture conveying track, during operation, the first fixture lifting platform conveys the battery tray containing the batteries to the fixture positioning and stopping mechanism corresponding to the electrolyte injection mechanism, and the fixture positioning and stopping mechanism pushes the battery tray to the fixed fixture. A multi-axis robotic arm delivers liquid nozzles to each row of batteries in the battery tray for liquid injection. After injection, a fixed fixture pushes the battery tray onto a fixture conveyor track, which then transports it to a fixture positioning and stopping mechanism located beside the corresponding vacuum pump. This mechanism pushes the battery tray onto the fixed fixture within the vacuum pump for vacuuming. This setup allows the battery tray to be transported to the appropriate processing station according to processing needs, offering high flexibility and significantly improving battery production efficiency. Furthermore, by incorporating a fixed fixture for sending and receiving battery trays, and a fixture positioning and stopping mechanism positioned along the conveyor track, the battery trays are automatically transferred between the liquid injection and vacuuming processes. This reduces manual handling steps, lowers the workload of operators, and minimizes human error, thus improving the stability and reliability of the production line. Furthermore, the multiple electrolyte injection mechanisms and multiple vacuum pumps of this invention enable the battery to complete multiple processing steps on the same machine, avoiding potential damage to the battery during transfer between different devices and further improving the production quality of the battery. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model after the chassis has been removed; Figure 3 This is a schematic diagram of the battery feeding and weighing mechanism in this utility model; Figure 4 This is a schematic diagram of the conveying platform in this utility model; Figure 5 This is a schematic diagram of the material-blocking assembly in this utility model; Figure 6 This is a schematic diagram of the fixture positioning and stopping mechanism in this utility model; Figure 7 This is a schematic diagram of the electrolyte injection mechanism in this utility model; Figure 8 This is a schematic diagram of the battery feeding and weighing mechanism in this utility model; Figure 9This is a schematic diagram of the material feeding and conveying assembly in this utility model; Figure 10 This is a schematic diagram of the structure of the second fixture lifting platform in this utility model; Figure 11 This is a schematic diagram of the fixture return conveyor track in this utility model. Detailed Implementation

[0016] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0017] Please see Figure 1 and Figure 2 This embodiment provides a novel electrolyte injection machine, which includes a housing 10. Inside the housing 10, there are a battery loading and weighing mechanism 20, a fixture conveying track 30, multiple electrolyte injection mechanisms 40 located on both sides of the fixture conveying track 30, multiple vacuum pumps 50 with different processes, and a battery unloading and weighing mechanism 60. The fixture conveying track 30 is used to transport battery trays 80. The first and last ends of the fixture conveying track 30 intersect with the battery loading and weighing mechanism 20 and the battery unloading and weighing mechanism 60, respectively. Fixture positioning and stopping mechanisms 70 are evenly spaced along the conveying direction on the fixture conveying track 30. A PLC control device is installed on the housing 10 to control the operation of all electrical components of the equipment.

[0018] Please see Figure 3In this embodiment, the battery loading and weighing mechanism 20 is used to transport batteries and adjust their orientation so that the capacitor plates on the batteries face in a uniform direction. It also weighs the batteries for subsequent electrolyte injection as needed. The battery loading and weighing mechanism 20 includes a battery transport track 21, with a transport platform 22 at the end of the track for gradually transporting batteries. A loading electronic scale 25 is located at the end of the transport platform 22. A vision detection component 23 and a battery rotation component 24, which adjusts the battery position after receiving signals from the vision detection component 23, are located on the upper side of the transport platform 22. A first fixture lifting platform 26 and a loading robot 27, which places the batteries from the loading electronic scale 25 into the battery tray 80 lifting platform fixture, are located on the side of the loading electronic scale 25. When the battery transport track 21 transports the batteries to the discharge end, the transport platform... The conveying platform 22 transports the battery to the vision inspection component 23, which takes a picture and sends the signal back to the PLC control device. The PLC control device then sends a corresponding command to the battery rotation component 24. The conveying platform 22 transports the battery to the battery rotation component 24, which rotates at a certain angle according to the command to position the battery capacitor plates in the set position. After rotation, the conveying platform 22 transports the battery to the loading scale 25, which weighs the battery and sends the information back to the PLC control device. After weighing, the loading robot 27 places the battery in the battery tray 80 of the first fixture lifting platform 26. Once the battery tray 80 is full, the first fixture lifting platform 26 transports the battery tray 80 to the fixture conveying track 30, completing the automatic loading.

[0019] Please see Figure 4The conveying platform 22 includes a frame 220, with a material moving platform 221 for placing batteries on top of the frame 220. A linear guide rail is provided inside the frame 220, and a movable seat 222 slides along the linear guide rail. The frame 220 has a first push cylinder 223 that drives the movable seat 222 to reciprocate along the movable seat 222. First lifting cylinders 224 are provided at both ends of the movable seat 222. A lifting plate 225 is provided at the output end of the two first lifting cylinders 224. Three finger cylinders 226 are sequentially arranged along the length of the lifting plate 225. Two fingertips of the finger cylinders 226 extend upwards toward the movable seat 222. The fingertips of the two finger cylinders 226 on both sides are equipped with extension clamping blocks 227, and the extension clamping blocks 227 of the two finger cylinders 226 face opposite directions. The fingertips of the middle finger cylinder 226 are equipped with V-groove clamping blocks 228. During operation, the first lifting cylinder 224 drives the lifting plate 225 to rise, causing the extension clamping blocks 227 and V-groove clamping blocks 228 to rise to a certain height and not interfere with the material moving platform 221. At this time, the first pushing cylinder 223 pulls the movable seat 222 backwards, causing the front extension clamping block 227 to extend into the electric... Within the battery transport track 21, the first battery is held in place by a finger cylinder 226 driving an extension clamp 227. A first push cylinder 223 pushes a movable seat 222 forward, moving the first battery below the vision inspection component 23, then releases it, allowing the vision inspection component 23 to photograph the first battery. When the first push cylinder 223 pulls the movable seat 222 backward to grab the second battery, a V-groove clamp 228 holds the first battery located below the vision inspection component 23. As the first push cylinder 223 pushes the movable seat 222 forward, the V-groove clamp 227... When the second battery is placed below the vision inspection component 23, the first battery held by the V-groove clamp 228 moves to the battery rotating component 24. The first battery is rotated by the battery rotating component 24. When the first push cylinder 223 pulls the moving seat 222 backward to grab the third battery, the rear extension clamp 227 clamps the first battery located below the vision inspection component 23. When the first push cylinder 223 pushes the moving seat 222 forward, the rear extension clamp 227 transports the first battery to the loading electronic scale 25, thereby gradually and orderly transporting the batteries.

[0020] To prevent batteries from falling from the end of the battery conveying track 21 onto the material moving platform 221, and to facilitate the rotation of batteries at different heights by the battery rotating assembly 24, the battery loading and weighing mechanism 20 also includes a height adjustment assembly 29 for adjusting the vision inspection assembly 23 and the battery rotating assembly 24, and a stop assembly 28 located at the end of the battery conveying track 21. (See also...) Figure 5The material blocking assembly 28 includes a fixed frame 280 and a retractable cylinder 281 mounted on the fixed frame 280. The output end of the retractable cylinder 281 is provided with a baffle 282, the end of which is tapered. The fixed frame 280 is provided with a first guide groove that slides in cooperation with the baffle 282. The fixed frame 280 is also provided with a guide block 283, which is provided with a second guide groove that matches the first guide groove. When the guide block 283 and the fixed frame 280 are closed, the first guide groove and the second guide groove form a guide tunnel for the baffle 282 to slide. When the retractable cylinder 281 is working, it drives the baffle 282 to slide back and forth in the guide tunnel. When the battery is transported to the end, the baffle 282 extends to block the battery from moving forward and prevent the battery from falling from the end of the battery transport track 21 onto the material moving platform 221.

[0021] In an optional embodiment, the height adjustment assembly 29 includes three vertical guide rods, a mounting plate is slidably mounted on the three vertical guide rods, and a top plate is provided at the top of the three vertical guide rods. The top plate is rotatably provided with a lead screw threadedly connected to the mounting plate, and a handwheel is provided at the top of the lead screw. The vision inspection assembly 23 and the battery rotation assembly 24 are respectively mounted on the mounting plate. The vision inspection assembly 23 consists of a CCD camera and a light source. The battery rotation assembly 24 consists of a rotary motor 92 and a pneumatic gripper.

[0022] Please see Figure 6 The fixture positioning and blocking mechanism 70 is located below the fixture conveying track 30 and is used to block the battery tray 80 and convey the battery tray 80 to the corresponding processing station. In this embodiment, the fixture positioning and blocking mechanism 70 includes a fixed base plate 71 and a first lifting frame 72 mounted on the fixed base plate 71. The lifting frame is equipped with a first chain and a motor drive assembly 73 for conveying the battery tray 80 out of the first lifting frame 72. Blocking members 74 for blocking the battery tray 80 are provided on the front and rear sides of the first lifting frame 72. The blocking member 74 is equipped with a bracket 740, and the top of the bracket 740 is provided with a U-shaped connecting platform 741. The U-shaped connecting platform 741 has a passage inside. A stop block 742 is pivotally connected to the connecting shaft. The stop block 742 is triangular and is connected to a roller assembly 743 via a rotating shaft. A second push cylinder 744 with its output end connected to the stop block 742 is provided inside the bracket 740. First, the second push cylinder 744 on the rear side drives the stop block 742 to block the battery tray 80 conveyed by the fixture conveying track 30. When the battery tray 80 is in place, the second push cylinder 744 on the front side drives the stop block 742 to block the battery tray 80. At this time, the first lifting frame 72 is lifted, causing the battery tray 80 to leave the fixture conveying track 30. Then, the battery tray 80 is sent to the corresponding workstation through the first chain and motor drive assembly 73.

[0023] The electrolyte injection mechanism 40 is mainly used to inject electrolyte into the battery. Three electrolyte injection mechanisms 40 are provided, arranged sequentially along the conveying direction of the fixture conveying track 30. (See also...) Figure 7 In this embodiment, the electrolyte injection mechanism 40 includes a storage tank 41 for storing electrolyte and a multi-axis mobile robot 42 positioned above it. The multi-axis mobile robot 42 has multiple liquid outlet nozzles 43 arranged side-by-side. Each liquid outlet nozzle 43 is connected to a pump in the storage tank 41 via a pipeline. A fixing fixture 44 is positioned below each multi-axis mobile robot 42, and a drain hopper 45 is located to the side of the fixing fixture 44. The multi-axis mobile robot 42 is initially positioned at the drain hopper 45. A raw material storage device 46, connected to the storage tank 41 via a pipeline, is located outside the chassis 10. When the multi-axis mobile robot 42 receives a command, it moves from its initial position to above the fixing fixture 44 and injects the electrolyte evenly into the battery through the liquid outlet nozzles 43. After injection, the multi-axis mobile robot 42 returns to above the drain hopper 45, ready for the next injection operation. The drain hopper 45 effectively collects excess electrolyte, preventing it from dripping onto the equipment or the ground, ensuring a clean and safe working environment. Meanwhile, the sequential arrangement of the three electrolyte injection mechanisms 40 improves production efficiency.

[0024] In this embodiment, five vacuum pumps 50 are arranged sequentially along the conveying direction of the fixture conveying track 30. Each vacuum pump 50 has a different processing time or processing technology, and a fixed fixture 44 is provided under each vacuum pump 50. Each vacuum pump 50 performs vacuuming treatment on the battery according to a preset processing time or processing technology to ensure that there are no air bubbles inside the battery, thereby improving the battery's performance and stability. Vacuum pumps 50 with different processing times or processing technologies can be selected for processing according to different needs, which provides good flexibility.

[0025] In an optional embodiment, the fixing fixture 44 includes a support frame 440 and a second lifting frame 441 disposed within the support frame 440. The second lifting frame 441 is provided with a third chain and a motor drive assembly 442 for sending the battery tray 80 out of the second lifting frame 441. The battery tray 80 is raised by the second lifting frame 441 so that the third chain and the motor drive assembly 442 can transport the battery tray 80 to the fixture transport track 30.

[0026] In this embodiment, vertical guide rods are provided around the bottom of both the first lifting frame 72 and the second lifting frame 441. Each vertical guide rod is equipped with a compression spring and a fixed linear bearing. A third lifting cylinder is provided at the bottom of both the first lifting frame 72 and the second lifting frame 441. The fixed linear bearing on the first lifting frame 72 is fixed to the fixed base plate 71, and the fixed linear bearing on the second lifting frame 441 is fixed to the support frame 440. Through the design of the vertical guide rods and compression springs, the first lifting frame 72 and the second lifting frame 441 can remain stable during lifting, avoiding swaying and improving the stability and accuracy of the equipment. Simultaneously, the fixed linear bearings make the vertical movement of the lifting frame smoother, reducing friction and resistance and improving the operating efficiency of the equipment.

[0027] The battery unloading and weighing mechanism 60 is mainly used to convey batteries from the battery tray 80 out of the equipment, weigh the batteries containing electrolyte, and sort good and defective products; please refer to Figure 8 In this embodiment, the battery unloading and weighing mechanism 60 includes a second fixture lifting platform 61 that intersects with the end of the fixture conveying track 30. Two unloading electronic scales 62 and an unloading robot 63 for conveying the batteries that have been injected with liquid and evacuated to the unloading electronic scales 62 are arranged on the side of the second fixture lifting platform 61. An unloading conveying component 64 is arranged on the side of the unloading robot 63. The second fixture lifting platform 61 receives the battery tray 80 conveyed by the fixture conveying track 30, and then the unloading robot 63 sends the battery to the two unloading electronic scales 62 for weighing. After weighing, the unloading robot 63 sends the battery to the unloading conveying component 64, and the unloading conveying component 64 sorts and conveys good and defective products.

[0028] In an alternative embodiment, please refer to Figure 9The feeding and conveying assembly 64 includes a good product conveyor line 640 and a defective product conveyor line 641. A guiding component intersects between the feeding ends of the good product conveyor line 640 and the defective product conveyor line 641. The guiding component is provided with a guiding track 642 that communicates with the feeding ends of the good product conveyor line 640 and the defective product conveyor line 641. A linear motion module 643 is provided at the lower end of the guiding track 642. The linear motion module 643 is provided with a pusher block 644 that slides along the guiding track 642. The pusher block 644 has grooves on both sides that conform to the battery. An insert plate 645 that penetrates into the guiding track 642 is provided on one side of the guiding track 642, and a third push cylinder 646 that drives the insert plate 645 to move back and forth. The insert plate 645 has an insert slot. When the unloading robot 63 delivers the battery into the guide rail 642, the third push cylinder 646 drives the insert plate 645 to position the battery. When the battery is a good product, the linear motion module 643 first drives the push block 644 to one end near the defective product conveyor line 641. The unloading robot 63 then delivers the battery into the guide rail 642. After the battery is positioned, the third push cylinder 646 drives the insert plate 645 to move backward, causing the linear motion module 643 to drive the push block 644 to push the battery towards the good product conveyor line 640. When the battery is a defective product, the reverse is true. This setup effectively sorts good and defective products, ensuring battery quality.

[0029] Please see Figure 10 In an optional embodiment, both the first jig lifting platform 26 and the second jig lifting platform 61 include a vertical moving module 610 and a jig platform 611 driven by the vertical moving module 610 to lift. The jig platform 611 is provided with a second chain and a motor drive assembly 612 for pushing the battery tray 80. The jig platform 611 is also provided with two symmetrically arranged positioning members. The positioning members include a second lifting cylinder 613. The output end of the second lifting cylinder 613 is provided with a horizontal top plate 614. The horizontal top plate 614 is symmetrically provided with positioning pins 615 for inserting the battery tray 80. The horizontal top plate 614 located on the side of the positioning pins 615 is provided with a pad. The positioning members position the battery tray 80 on the jig platform 611 to prevent the battery tray 80 from shifting or shaking during the transportation process and to ensure that the battery tray 80 can be stably placed on the jig platform 611.

[0030] To facilitate the return of the battery tray 80, a fixture return conveyor track 90 is provided below the fixture conveyor track 30. The first and second ends of the fixture return conveyor track 90 intersect with the first fixture lifting platform 26 and the second fixture lifting platform 61, respectively. (See below) Figure 11The fixture return conveyor track 90 includes a hollow frame 91. The hollow frame 91 has a rotating shaft with sprockets at both ends. The two rotating shafts have chains with rollers 93 at both ends. The hollow frame 91 is equipped with a motor 92 that drives the rotating shaft to rotate. The fixture platform 611 is driven to move down by the vertical moving module 610 on the first fixture lifting platform 26 and the second fixture lifting platform 61, so that the fixture return conveyor track 90 can easily receive and send the battery tray 80 to the corresponding first fixture lifting platform 26 and second fixture lifting platform 61.

[0031] In summary, by setting multiple vacuum pumps 50 with different processes and multiple electrolyte injection mechanisms 40 on the side of the fixture conveying track 30, and by setting a fixed fixture 44 for each electrolyte injection mechanism 40 and each vacuum pump 50 to deliver and receive battery trays 80, and by setting a fixture positioning and blocking mechanism 70 along the conveying direction of the fixture conveying track 30, during operation, the first fixture lifting platform 26 conveys the battery tray 80 containing batteries to the fixture positioning and blocking mechanism 70 corresponding to the electrolyte injection mechanism 40. The fixture positioning and blocking mechanism 70 then pushes the battery tray 80 to the fixed fixture 44, and through multi-axis movement... The robotic arm 42 delivers liquid nozzles 43 to inject liquid into each row of batteries in the battery tray 80. After the liquid injection is completed, the fixed fixture 44 pushes the battery tray 80 to the fixture conveying track 30. The fixture conveying track 30 then transports the battery tray 80 to the fixture positioning and stopping mechanism 70 on the side of the vacuum machine 50 for corresponding processing. The fixture positioning and stopping mechanism 70 pushes the battery tray 80 into the fixed fixture 44 in the corresponding vacuum machine 50 for vacuuming. This setup allows the battery tray 80 to be transported to the corresponding processing station according to processing requirements, providing good flexibility and significantly improving battery production efficiency.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A new liquid injection machine comprising: The chassis, characterized in that, is disposed within the chassis, A battery loading and weighing mechanism includes a battery conveying track, a conveying platform at the end of the battery conveying track for gradually conveying batteries, a loading electronic scale at the end of the conveying platform, a vision detection component and a battery rotation component that adjusts the battery position after receiving signals from the vision detection component on the upper side of the conveying platform, the conveying platform gradually conveys the battery to the vision detection component, the battery rotation component and the loading electronic scale, a first fixture lifting platform and a loading robot arm that places the batteries on the loading electronic scale into the battery tray of the first fixture lifting platform are provided on the side of the loading electronic scale; The fixture conveying track is used to convey battery trays. The first end of the fixture conveying track intersects with the first fixture lifting platform. Fixture positioning and stopping mechanisms are set at equal intervals along the conveying direction of the fixture conveying track. Multiple electrolyte injection mechanisms are arranged on the side along the conveying direction of the fixture conveying track and correspond to the fixture positioning and stopping mechanism. Each mechanism includes a storage tank for storing electrolyte and a multi-axis mobile robot located above it. The multi-axis mobile robot has multiple liquid dispensing nozzles arranged side by side, and each liquid dispensing nozzle is connected to the liquid pump of the storage tank through a pipeline. Multiple vacuum pumps with different processes are arranged on the side along the conveying direction of the fixture conveying track and correspond to the fixture positioning and stopping mechanism; The battery unloading and weighing mechanism includes a second fixture lifting platform that intersects with the end of the fixture conveying track. Two unloading electronic scales and an unloading robot for conveying the liquid-filled and vacuum-evacuated batteries to the unloading electronic scales are provided on the side of the second fixture lifting platform. An unloading conveying component is provided on the side of the unloading robot. The fixture positioning and stopping mechanism includes a first lifting frame, which is equipped with a first chain and a motor drive assembly for conveying the battery tray out of the first lifting frame. Each electrolyte injection mechanism and each vacuum pump is equipped with a fixture for receiving and delivering battery trays.

2. The new liquid filling machine according to claim 1, characterized in that, It also includes a jig return conveyor track, the two ends of which intersect with the first jig lifting platform and the second jig lifting platform, respectively. It includes a hollow frame, with a rotating shaft with sprockets at both ends of the hollow frame, and a chain with rollers at both ends of the two rotating shafts. The hollow frame is equipped with a motor that drives the rotating shafts to rotate.

3. The new liquid filling machine according to claim 1, characterized in that, The conveying platform includes a frame, a material moving platform on the top of the frame, a linear guide rail inside the frame, a moving seat sliding on the linear guide rail, a first push cylinder driving the moving seat to reciprocate along the moving seat, first lifting cylinders at both ends of the moving seat, a lifting plate at the output end of the two first lifting cylinders, three finger cylinders arranged sequentially along the length of the lifting plate, the two finger tips of the three finger cylinders extending towards the upper side of the moving seat, the finger tips of the two finger cylinders on both sides having extension clamps, and the extension clamps of the two finger cylinders on both sides facing opposite directions, and the finger tip of the middle finger cylinder having a V-shaped groove clamp.

4. The new liquid filling machine according to claim 1, characterized in that, The battery loading and weighing mechanism also includes a height adjustment component for adjusting the vision inspection component and the battery rotation component, as well as a baffle component located at the end of the battery conveying track. The baffle component includes a fixed frame and a retractable cylinder on the fixed frame. The output end of the retractable cylinder is provided with a baffle, and the end of the baffle is tapered. The fixed frame is provided with a first guide groove that slides with the baffle. The fixed frame is also provided with a guide block, and the guide block is provided with a second guide groove that matches the first guide groove. When the guide block and the fixed frame are closed, the first guide groove and the second guide groove form a guide tunnel for the baffle to slide.

5. The new liquid filling machine as claimed in claim 1, wherein The fixture positioning and blocking mechanism also includes a fixed base plate and blocking components symmetrically arranged on the fixed base plate to block the battery tray. The blocking components are equipped with a bracket, and a U-shaped connecting platform is provided on the top of the bracket. A stop block is pivotally connected to the U-shaped connecting platform through a connecting shaft. The stop block is triangular in shape and is connected to a roller group through a rotating shaft. A second push cylinder with an output end connected to the stop block is provided in the bracket.

6. The new liquid filling machine as claimed in claim 1, wherein A draining hopper is provided on the side of the fixed fixture below the multi-axis mobile robot, and the initial position of the multi-axis mobile robot is set in the draining hopper.

7. The new liquid filling machine as claimed in claim 1, wherein The material conveying assembly includes a good product conveyor line and a defective product conveyor line. A guiding component intersects between the inlet ends of the good product conveyor line and the defective product conveyor line. The guiding component is equipped with a guiding rail that communicates with the inlet ends of the good product conveyor line and the defective product conveyor line. A linear motion module is provided at the lower end of the guiding rail. The linear motion module is equipped with a pusher block that slides along the guiding rail. The pusher block has grooves on both sides that conform to the battery. An insert plate that penetrates into the guiding rail is provided on one side of the guiding rail, as well as a third push cylinder that drives the insert plate to move back and forth. The insert plate has an insert groove.

8. The new liquid filling machine according to claim 1, characterized in that, Both the first and second jig lifting platforms include a vertical moving module and a jig platform that is driven to rise and fall by the vertical moving module. The jig platform is equipped with a second chain and a motor drive assembly for pushing the battery tray. The jig platform is also equipped with two symmetrically arranged positioning components. The positioning components include a second lifting cylinder. The output end of the second lifting cylinder is equipped with a horizontal top plate. The horizontal top plate is symmetrically equipped with positioning pins for inserting the battery tray, and a pad is provided on the horizontal top plate located to the side of the positioning pins.

9. The new liquid filling machine as claimed in claim 1, wherein The fixture includes a support frame and a second lifting frame located within the support frame. The second lifting frame contains a third chain for sending the battery tray out of the second lifting frame and a motor drive assembly.

10. The novel liquid filling machine as claimed in claim 9, wherein The first and second lifting frames are equipped with vertical guide rods around their bottom perimeters. Each vertical guide rod is equipped with a compression spring and a fixed linear bearing. The bottom of both the first and second lifting frames is equipped with a third lifting cylinder.

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