A one-to-one automatic liquid injection system for suction cup liquid injection and its use method

Abstract

The present invention discloses a one-to-one automatic liquid injection system for suction cup injection and a method of using the same, which is applied in the field of mechanical manufacturing and comprises a lifting control component, a liquid injection needle expansion component, a suction cup component, a liquid storage tank and a liquid injection pump component, a top plate and a bottom plate; the present invention drives the liquid injection needle expansion component to move up and down by setting a lifting control component, and the suction cup component drives sixteen suction cup bodies to move closer to and away from each other, and the sixteen suction cup bodies can adsorb eight battery air bags and open the battery air bags, and when the lifting control component drives the liquid injection needle expansion component to descend, the expansion rod of the liquid injection needle expansion component is inserted into the center of the battery air bag after it is opened, and with the cooperation of the lower tank body and the four-connected liquid injection pump to transport electrolyte to the liquid injection needle expansion component, the automatic adjustment of the automatic suction cup body can be met, and the liquid injection needle expansion component can perform liquid injection on a one-to-one basis on the battery air bags, with a high degree of automation.

Description

Technical Field

[0001] The present invention relates to the field of mechanical manufacturing, and in particular to a one-to-one automatic liquid injection system for a suction cup and a use method thereof. Background Art

[0002] In the current injection mechanism, the suction cup is controlled by a cylinder, the suction cup opening distance needs to be manually adjusted, and the injection pump is not one-to-one. In order to solve the above problems, we propose a suction cup one-to-one automatic injection system and its use method. Summary of the Invention

[0003] The purpose of the present invention is to provide a one-to-one automatic liquid injection system for suction cups and a method of use thereof, which has the advantages that the suction cups are controlled by motor gear racks, the opening distance can be automatically controlled, and one liquid injection pump corresponds to one battery.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: a one-to-one automatic liquid injection system for suction cup liquid injection, comprising a lifting control assembly, a liquid injection needle expanding assembly, a suction cup assembly, a liquid storage tank and a liquid injection pump assembly, a top plate and a bottom plate, the lifting control assembly comprising a lifting motor, a motor seat is installed at the bottom of the lifting motor, and a bearing fixing plate is installed at the bottom of the motor seat; the output end of the lifting motor passes through the interior of the motor seat and is installed with a ball screw through a coupling, the bottom end of the ball screw is rotatably sleeved with a screw seat, and the surface of the ball screw thread seat is fixedly sleeved with a liquid injection head fixing plate; four expanding cylinders are symmetrically installed at the bottom of the liquid injection head fixing plate; an inductor is symmetrically installed at the bottom of the lifting control assembly, and a speed regulating valve is installed on the surface of the inductor; the lifting motor is used to drive the ball screw to rotate, and the rotation of the ball screw drives the threaded seat on its surface to drive the liquid injection head fixing plate to rise or fall, and the rising and falling of the liquid injection head fixing plate can drive the expanding cylinder and the liquid injection needle expanding assembly at its bottom to rise and fall;

[0005] The injection needle expansion assembly includes eight needle seats, the top of which is equipped with a connector, the bottom of which is equipped with an expansion rod connected to the connector, and the top of the needle seat is installed with the bottom end of the expansion cylinder; the needle seat and the expansion cylinder are installed so that the needle seat can move up and down with the expansion cylinder, and the connector is connected to the expansion rod. Through the hose between the connector and the drainage joint, the electrolyte can be directly discharged from the connector and then discharged into the expansion rod. After that, the electrolyte is discharged into the battery air bag through the expansion rod for injection.

[0006] The suction cup assembly includes a suction cup motor, a gear fixedly sleeved on the surface of the output end of the suction cup motor, two racks meshed on the surface of the gear, and guide rail seats are installed at the bottom of the two racks, and two movable beams 1 and two movable beams 2 are installed at the bottom of the two guide rail seats, and eight suction cup bodies are installed at the bottom of the two movable beams 1; the suction cup motor drives the gear to rotate, and the gear drives the two racks to move respectively, and the sliding of the two racks will drive the two movable beams 2 and the two movable beams 1 to approach each other, so that the eight suction cup bodies installed at the bottom of the two movable beams 2 and the two movable beams 1 can correspond to each other and contact the battery air bag, thereby adsorbing the battery air bag; the arrangement of the two movable beams 2 and the two movable beams 1 is set as movable beam 2, movable beam 1, movable beam 2, and movable beam 1. After being driven by the gear, the four suction cup bodies at the bottom of the movable beam 2 and the movable beam 1 can form corresponding contact with both sides of the battery air bag, and the remaining movable beam 2 and movable beam 1 will also drive the four suction cup bodies at their respective bottoms to form a corresponding contact, thereby adsorbing the eight battery air bags;

[0007] The liquid storage tank and injection pump assembly includes an upper tank body, the bottom of the upper tank body is connected to a connecting pipe, the bottom end of the connecting pipe is connected to the lower tank body, the top of the upper tank body is respectively installed with a vacuum breaking joint and a joint, the top of the upper tank body is also installed with a liquid inlet joint 1, the surface of the liquid inlet joint 1 is connected to an air nozzle, and two drain valves are installed at the bottom of the lower tank body, and the two drain valves are respectively installed with a four-connected liquid injection pump through two hoses; the connecting pipe is used to store electrolyte and transport the electrolyte to the liquid inlet joint 2 through the two drain valves and two hoses, so that the liquid inlet joint 2 can transport the electrolyte to the injection needle expansion assembly to complete the injection work.

[0008] By adopting the above technical solution, through the arrangement of the lifting motor, the ball screw, the threaded seat on the surface of the ball screw, the bearing fixing plate, the injection head fixing plate, the flaring cylinder, the injection needle flaring assembly, the suction cup motor, the gear, the rack, the guide rail seat, the movable beam one and the movable beam two, the batteries can be sucked open smoothly and the liquid can be injected one by one without incorrect injection.

[0009] The present invention is further configured as follows: the suction cup body includes a suction cup base, the top of the suction cup base is bolted to a movable beam, and a suction cup and a suction nozzle are respectively installed on the surface of the suction cup base.

[0010] By adopting the above technical solution, the suction cup body is provided to absorb the battery air bag, thereby playing the role of stretching and unfolding the battery air bag.

[0011] The present invention is further configured as follows: the four-connected liquid injection pump includes a pump body, a liquid inlet connector 2 installed with a hose is installed on the top of the pump body, a liquid discharge connector is installed on one side of the liquid inlet connector 2, and the liquid discharge connector is installed with a connecting head through a hose.

[0012] The above technical solution is adopted, through the setting of a four-connected liquid injection pump, to transfer the electrolyte inside the lower tank body to the liquid injection needle expansion assembly, assisting the liquid injection needle expansion assembly to complete the liquid injection work.

[0013] The present invention is further configured as follows: two sliding sleeves are embedded in the interior of the injection head fixing plate, the interior of the sliding sleeves is slidably connected with guide pillars, and the top ends of the guide pillars are bolted to the bottom of the bearing fixing plate.

[0014] The above technical solution is adopted to guide the up and down movement of the injection head fixing plate through the arrangement of the sliding sleeve and the guide column, thereby ensuring the stability of the injection head fixing plate when moving up and down.

[0015] The present invention is further configured as follows: the bottom of the screw seat is installed on the top of the suction cup motor.

[0016] By adopting the above technical solution, through the installation of the screw seat and the suction cup motor, the structure of the screw seat and its top can be located at the center point like the suction cup motor. When injecting liquid, it can ensure that the expansion rod can correspond to the center point of the battery air bag.

[0017] The present invention is further configured as follows: a fixing seat is installed on the front of the bearing fixing plate, a slot-shaped photoelectric sensor is installed on the front of the fixing seat, and a sensor sheet is installed on the front of the injection head fixing plate.

[0018] The above technical solution is adopted to sense whether there is obstruction or missing through the arrangement of the fixing seat, the slot-shaped photoelectric sensor and the sensor sheet.

[0019] The present invention is further configured such that: liquid level connectors are installed on the surfaces of the lifting control assembly and the injection needle expansion assembly, and liquid level sensors are installed on the surfaces of the liquid level connectors.

[0020] The above technical solution is adopted to sense the remaining capacity of the electrolyte through the provision of a liquid level connector and a liquid level sensor.

[0021] The present invention is further configured as follows: a base is installed on the surface of the connecting pipe, the bottom of the upper tank body is installed on the top of the lower tank body through a support frame, and the bottom of the lower tank body is bolted with an air-controlled solenoid valve through the support frame.

[0022] By adopting the above technical solution, the base is provided to control the circulation and sealing of the connecting pipe, and the air-controlled solenoid valve supports the bottom of the lower tank body.

[0023] The present invention is further configured as follows: the interior of the top plate is mounted on the surface of the motor seat, the interior of the bottom plate is mounted on the surface of the suction cup motor, and two cylinders mounted on the interior of the bottom plate are also mounted on the interior of the top plate.

[0024] The above technical solution is adopted, through the arrangement of the top plate and the bottom plate, to fix the entire structure therebetween, and the movable beam 1, the guide rail seat, the movable beam 2, the rack and the suction cup body are all movable structures.

[0025] The above technical purpose of the present invention is also achieved through the following technical solutions: A method for using a one-to-one automatic liquid injection system for sucker injection, comprising the following steps:

[0026] Step 1: The suction cup motor starts to work, rotating the gear and rack, so that the two suction cup bodies at the bottom of the two movable beams move closer together and absorb the battery air bag;

[0027] Step 2: The suction cup motor reverses and moves a certain distance, and the battery air bags are opened using the two suction cup bodies. If all eight batteries are not opened, repeat steps 2 and 3 until all are opened, or the optimal number is reached:

[0028] Step 3: The lifting motor rotates the ball screw, which drives the injection needle expansion assembly down to a certain position. The expansion rod is inserted into the opened battery air bag. The expansion cylinder extends to drive the expansion rod down to expand the battery. The expansion cylinder does not extend if the top of the battery is not sucked open.

[0029] Step 4: After the expansion, the lifting motor reverses, the expansion rod is lifted to a certain height, and the liquid injection begins. During the injection, the two drain valves are opened, and the electrolyte in the lower tank enters the two liquid inlet joints 2 through the two drain valves and two hoses. The electrolyte is respectively input into the two pump bodies through the two liquid inlet joints 2, and the electrolyte is discharged into the interior of the eight connectors through the four drain joints of the two pump bodies through the hoses. During the injection, each expansion rod corresponds to an injection needle, and each injection needle corresponds to a battery. The battery and the expansion rod are one-to-one;

[0030] Step 5: After the injection is completed, the lifting motor returns to the origin;

[0031] Step 6: The four-link liquid injection pump breaks the vacuum. Under the action of the suction cup motor, the four-link liquid injection pump returns to the origin, completes the liquid injection, and waits for the next liquid injection to start.

[0032] In summary, the present invention has the following beneficial effects:

[0033] The present invention drives the injection needle expanding assembly to move up and down by setting a lifting control component, and the suction cup component drives sixteen suction cup bodies to move closer to and away from each other. The sixteen suction cup bodies can adsorb eight battery air bags and pull the battery air bags open. The lifting control component drives the injection needle expanding assembly to descend, so that the expanding rod of the injection needle expanding assembly is inserted into the center of the battery air bag after it is pulled open. With the cooperation of the lower tank body and the four-connected injection pump to transport electrolyte to the injection needle expanding assembly, the automatic adjustment of the automatic suction cup body can be met, and the injection needle expanding assembly can inject liquid into the battery air bags one by one, with a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the coordinated use of the lifting control assembly, the injection needle expansion assembly, and the suction cup assembly of the present invention;

[0035] Figure 2 is a schematic diagram of a suction cup assembly of the present invention;

[0036] Figure 3 Schematic diagram of the expansion assembly of the injection needle of the present invention;

[0037] Figure 4 is a schematic diagram of a suction cup assembly of the present invention;

[0038] Figure 5 It is a schematic diagram of the liquid storage tank and injection pump assembly of the present invention;

[0039] Figure 6 It is a schematic diagram of a four-connected liquid injection pump of the present invention.

[0040] Reference numerals:

[0041] 1. Lifting control assembly; 101. Lifting motor; 102. Motor base; 103. Bearing fixing plate; 104. Fixing base; 105. Slotted photoelectric sensor; 106. Ball screw; 107. Screw base; 108. Injection head fixing plate; 109. Sensor plate; 1010. Expanding cylinder; 1011. Sensor;

[0042] 2. Injection needle expansion assembly; 201. Needle seat; 202. Connector; 203. Expanding rod;

[0043] 3. Suction cup assembly; 301. Suction cup motor; 302. Gear; 303. Rack; 304. Guide rail seat; 305. Movable beam 1; 306. Movable beam 2;

[0044] 4. Liquid storage tank and injection pump assembly; 401. Upper tank body; 402. Connecting pipe; 403. Lower tank body; 404. Vacuum breaker connector; 405. Connector; 406. Liquid inlet connector 1; 407. Air nozzle; 408. Drain valve;

[0045] 5. Top plate; 6. Bottom plate;

[0046] 7. Suction cup body; 71. Suction cup base; 72. Suction cup; 73. Suction nozzle;

[0047] 8. Four-connected liquid injection pump; 81. Pump body; 82. Liquid inlet connector 2; 83. Liquid discharge connector;

[0048] 9. Sliding sleeve; 10. Guide column; 11. Liquid level connector; 12. Liquid level sensor; 13. Base; 14. Air-controlled solenoid valve. DETAILED DESCRIPTION

[0049] The present invention will be further described in detail below with reference to the accompanying drawings.

[0050] Example 1:

[0051] refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 A one-to-one automatic liquid injection system for suction cup liquid injection includes a lifting control component 1, a liquid injection needle expansion component 2, a suction cup component 3, a liquid storage tank and liquid injection pump component 4, a top plate 5 and a bottom plate 6. The lifting control component 1 includes a lifting motor 101, a motor base 102 is installed at the bottom of the lifting motor 101, and a bearing fixing plate 103 is installed at the bottom of the motor base 102; the output end of the lifting motor 101 passes through the interior of the motor base 102 and is installed with a ball screw 106 through a coupling, and the bottom end of the ball screw 106 is rotatably sleeved with a screw base 107, and the ball screw 106 The surface of the threaded seat is fixedly sleeved with a liquid injection head fixing plate 108; four flaring cylinders 1010 are symmetrically mounted on the bottom of the liquid injection head fixing plate 108; sensors 1011 are symmetrically mounted on the bottom of the lifting control assembly 1, and a speed regulating valve is mounted on the surface of the sensor 1011; the lifting motor 101 is used to drive the ball screw 106 to rotate, and the ball screw 106 rotates to drive the threaded seat on its surface to drive the liquid injection head fixing plate 108 to rise or fall. The rise and fall of the liquid injection head fixing plate 108 can drive the flaring cylinders 1010 and the liquid injection needle flaring assembly 2 at the bottom to rise and fall;

[0052] The injection needle flaring assembly 2 includes eight needle seats 201. A connector 202 is installed on the top of the needle seat 201. A flaring rod 203 connected to the connector 202 is installed on the bottom of the needle seat 201. The top of the needle seat 201 is installed with the bottom end of the flaring cylinder 1010. The needle seat 201 and the flaring cylinder 1010 are installed so that the needle seat 201 can move up and down with the flaring cylinder 1010. The connector 202 and the flaring rod 203 are connected. The electrolyte can be directly discharged from the connector 202 and then discharged into the flaring rod 203 through the hose between the connector 202 and the drain connector 83. Thereafter, the electrolyte is discharged into the battery air bag through the flaring rod 203 for injection.

[0053] The suction cup assembly 3 includes a suction cup motor 301, a gear 302 is fixedly sleeved on the surface of the output end of the suction cup motor 301, two racks 303 are meshed on the surface of the gear 302, and a guide rail seat 304 is installed at the bottom of the two racks 303. Two movable beams 1 305 and two movable beams 2 306 are respectively installed at the bottom of the two guide rail seats 304, and eight suction cup bodies 7 are installed at the bottom of the two movable beams 1 305; the suction cup motor 301 drives the gear 302 to rotate, and the gear 302 drives the two racks 303 to move respectively. The sliding of the two racks 303 will drive the two movable beams 2 306 and the two movable beams 1 305 to move closer, so that the two movable The eight suction cup bodies 7 installed at the bottom of the second beam 306 and the two movable first beams 305 can correspond to each other and contact the battery air bags, thereby adsorbing the battery air bags; the two movable second beams 306 and the two movable first beams 305 are arranged in the order of movable beam 2 306, movable beam 1 305, movable beam 2 306, and movable beam 1 305. After being driven by the gear 302, the four suction cup bodies 7 at the bottom of the movable second beam 306 and movable beam 1 305 can form corresponding contact with both sides of the battery air bags. The remaining movable second beams 306 and movable first beams 305 will also drive the four suction cup bodies 7 at their respective bottoms to form corresponding contact, thereby adsorbing the eight battery air bags.

[0054] The liquid storage tank and injection pump assembly 4 includes an upper tank body 401, the bottom of the upper tank body 401 is connected to a connecting pipe 402, the bottom end of the connecting pipe 402 is connected to the lower tank body 403, and the top of the upper tank body 401 is respectively installed with a vacuum breaking joint 404 and a joint 405, and the top of the upper tank body 401 is also installed with a liquid inlet joint 406, the surface of the liquid inlet joint 406 is connected to an air nozzle 407, and two drain valves 408 are installed at the bottom of the lower tank body 403, and the two drain valves 408 are respectively installed with a four-connected injection pump 8 through two hoses; the connecting pipe 402 is used to store electrolyte and transport the electrolyte to the liquid inlet joint 2 82 through the two drain valves 408 through the two hoses, so that the liquid inlet joint 2 82 can transport the electrolyte to the injection needle expansion assembly 2 to complete the injection work;

[0055] By setting up a lifting control component 1 to drive the injection needle expansion component 2 to rise and fall, the suction cup component 3 drives the sixteen suction cup bodies 7 to move closer to and away from each other. The sixteen suction cup bodies 7 can be used to adsorb eight battery air bags and pull open the battery air bags. The lifting control component 1 drives the injection needle expansion component 2 to descend, so that the expansion rod 203 of the injection needle expansion component 2 is inserted into the center of the battery air bag after it is pulled open. With the cooperation of the lower tank body 403 and the four-connected injection pump 8 to transport electrolyte to the injection needle expansion component 2, the automatic adjustment of the automatic suction cup body 7 can be met, and the injection needle expansion component 2 can inject liquid into the battery air bags one by one, with a high degree of automation.

[0056] Furthermore, the suction cup body 7 includes a suction cup base 71, the top of the suction cup base 71 is bolted to the movable beam 305, and the surface of the suction cup base 71 is respectively installed with a suction cup 72 and a suction nozzle 73. Through the setting of the suction cup body 7, it is used to adsorb the battery air bag and play the role of stretching and unfolding the battery air bag.

[0057] Furthermore, the four-connected liquid injection pump 8 includes a pump body 81, and a liquid inlet connector 82 installed with a hose is installed on the top of the pump body 81, and a liquid discharge connector 83 is installed on one side of the liquid inlet connector 82. The liquid discharge connector 83 is installed with the connector 202 through a hose. Through the setting of the four-connected liquid injection pump 8, it is used to transfer the electrolyte inside the lower tank body 403 to the liquid injection needle expansion assembly 2, and assist the liquid injection needle expansion assembly 2 to complete the liquid injection work.

[0058] Furthermore, two sliding sleeves 9 are embedded in the interior of the injection head fixing plate 108, and the interior of the sliding sleeve 9 is slidably connected to a guide column 10, and the top of the guide column 10 is bolted to the bottom of the bearing fixing plate 103. Through the arrangement of the sliding sleeve 9 and the guide column 10, the up and down movement of the injection head fixing plate 108 is guided to ensure the stability of the injection head fixing plate 108 when moving up and down.

[0059] Furthermore, the sliding sleeve 9 and the guide column 10 are provided to guide the up and down movement of the injection head fixing plate 108, thereby ensuring the stability of the injection head fixing plate 108 when moving up and down. The screw seat 107 and the suction cup motor 301 are installed, and the screw seat 107 and the structure on its top can be located at the center point like the suction cup motor 301. When injecting liquid, it can ensure that the flaring rod 203 can correspond to the center point of the battery air bag.

[0060] Furthermore, a fixing seat 104 is installed on the front of the bearing fixing plate 103, a slot-shaped photoelectric sensor 105 is installed on the front of the fixing seat 104, and a sensing piece 109 is installed on the front of the injection head fixing plate 108. The setting of the fixing seat 104, the slot-shaped photoelectric sensor 105 and the sensing piece 109 is used to sense whether there is any obstruction or missing.

[0061] Furthermore, the surfaces of the lifting control component 1 and the injection needle expansion component 2 are both installed with a liquid level joint 11, and the surface of the liquid level joint 11 is installed with a liquid level sensor 12. The surfaces of the lifting control component 1 and the injection needle expansion component 2 are both installed with a liquid level joint 11, and the surface of the liquid level joint 11 is installed with a liquid level sensor 12.

[0062] Furthermore, a base 13 is installed on the surface of the connecting pipe 402, and the bottom of the upper tank body 401 is installed on the top of the lower tank body 403 through a support frame. The bottom of the lower tank body 403 is bolted with an air-controlled solenoid valve 14 through the support frame. The base 13 is set to control the circulation and sealing of the connecting pipe 402, and the air-controlled solenoid valve 14 supports the bottom of the lower tank body 403.

[0063] A method for using a one-to-one automatic liquid injection system for a suction cup liquid injection comprises the following steps:

[0064] Step 1: The suction cup motor 301 starts to work, rotating the gear 302 to link the rack 303, so that the two suction cup bodies 7 at the bottom of the two movable beams 305 move closer together to absorb the battery air bag;

[0065] Step 2: The suction cup motor 301 reverses a certain displacement and uses the two suction cup bodies 7 to pull open the battery air bags. If all eight batteries are not pulled open, repeat the second and third steps until all are pulled open, or the optimal number is reached:

[0066] Step 3: The lifting motor 101 rotates the ball screw 106, which drives the injection needle flaring assembly 2 down to a certain position. The flaring rod 203 is inserted into the opened battery air bag. The flaring cylinder 1010 extends and drives the flaring rod 203 down to flare the battery. The flaring cylinder 1010 does not extend if the top of the battery is not sucked open.

[0067] Step 4: After the expansion, the lifting motor 101 reverses, the expansion rod 203 is lifted to a certain height, and liquid injection begins. During the injection, the two drain valves 408 are opened, and the electrolyte in the lower tank 403 enters the two liquid inlet joints 82 through the two drain valves 408 and two hoses. The electrolyte is respectively input into the two pump bodies 81 by the two liquid inlet joints 82. The electrolyte is discharged into the interior of the eight connectors 202 through the four drain joints 83 of the two pump bodies 81 through the hoses. During the injection, each expansion rod 203 corresponds to an injection needle, and each injection needle corresponds to a battery. The battery and the expansion rod 203 are one-to-one;

[0068] Step 5: After the injection is completed, the lifting motor 101 returns to the origin;

[0069] In step 6, the four-link liquid injection pump 8 breaks the vacuum. Under the action of the suction cup motor 301, the four-link liquid injection pump 8 returns to the origin, completes the liquid injection, and waits for the next liquid injection to start.

[0070] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A one-to-one automatic liquid injection system for suction cup liquid injection, comprising a lifting control component (1), a liquid injection needle expansion component (2), a suction cup component (3), a liquid storage tank and liquid injection pump component (4), a top plate (5) and a bottom plate (6), characterized in that: The lifting control assembly (1) comprises a lifting motor (101), a motor seat (102) is installed at the bottom of the lifting motor (101), and a bearing fixing plate (103) is installed at the bottom of the motor seat (102); the output end of the lifting motor (101) passes through the interior of the motor seat (102) and is installed with a ball screw (106) through a coupling, the bottom end of the ball screw (106) is rotatably sleeved with a screw seat (107), and the surface of the threaded seat of the ball screw (106) is fixedly sleeved with a liquid injection head fixing plate (108); four flared cylinders (1010) are symmetrically installed at the bottom of the liquid injection head fixing plate (108); sensors (1011) are symmetrically installed at the bottom of the lifting control assembly (1), and a speed regulating valve is installed on the surface of the sensor (1011); The injection needle expansion assembly (2) comprises eight needle seats (201), the top of each needle seat (201) is provided with a connector (202), the bottom of each needle seat (201) is provided with an expansion rod (203) connected to the connector (202), and the top of each needle seat (201) is provided with the bottom of an expansion cylinder (1010); The suction cup assembly (3) includes a suction cup motor (301), a gear (302) is fixedly sleeved on the surface of the output end of the suction cup motor (301), two racks (303) are meshed on the surface of the gear (302), a guide rail seat (304) is installed at the bottom of each of the two racks (303), two movable beams (305) and two movable beams (306) are installed at the bottom of each of the two guide rail seats (304), and four suction cup bodies (7) are installed at the bottom of each of the two movable beams (305). The liquid storage tank and injection pump assembly (4) comprises an upper tank body (401), the bottom of the upper tank body (401) is connected to a connecting pipe (402), the bottom end of the connecting pipe (402) is connected to a lower tank body (403), the top of the upper tank body (401) is respectively installed with a vacuum breaking joint (404) and a joint (405), the top of the upper tank body (401) is also installed with a liquid inlet joint (406), the surface of the liquid inlet joint (406) is connected to an air nozzle (407), the bottom of the lower tank body (403) is installed with two discharge valves (408), the two discharge valves (408) are respectively installed with a four-connected liquid injection pump (8) through two hoses, the four-connected liquid injection pump (8) comprises a pump body (81), the pump body A second liquid inlet connector (82) installed with a hose is installed on the top of (81), a liquid discharge connector (83) is installed on one side of the second liquid inlet connector (82), and the liquid discharge connector (83) is installed with a connector (202) through a hose. A fixing seat (104) is installed on the front of the bearing fixing plate (103), and a slot-shaped photoelectric sensor (105) is installed on the front of the fixing seat (104). A sensor sheet (109) is installed on the front of the injection head fixing plate (108). A base (13) is installed on the surface of the connecting pipe (402). The bottom of the upper tank body (401) is installed with the top of the lower tank body (403) through a support frame, and the bottom of the lower tank body (403) is bolted with an air-controlled solenoid valve (14) through a support frame.

2. A one-to-one automatic liquid filling system for suction cups according to claim 1, characterized in that: The suction cup body (7) comprises a suction cup base (71), the top of the suction cup base (71) is bolted to a movable beam (305), and a suction cup (72) and a suction nozzle (73) are respectively installed on the surface of the suction cup base (71).

3. A one-to-one automatic liquid filling system for suction cups according to claim 1, characterized in that: Two sliding sleeves (9) are embedded in the interior of the injection head fixing plate (108), and the interior of the sliding sleeve (9) is slidably connected to a guide column (10), and the top end of the guide column (10) is bolted to the bottom end of the bearing fixing plate (103).

4. The one-to-one automatic liquid filling system for suction cups according to claim 1, characterized in that: The bottom of the screw seat (107) is mounted on the top of the suction cup motor (301).

5. The one-to-one automatic liquid filling system for suction cups according to claim 1, characterized in that: The surfaces of the lifting control component (1) and the injection needle expansion component (2) are both installed with a liquid level connector (11), and the surface of the liquid level connector (11) is installed with a liquid level sensor (12).

6. The one-to-one automatic liquid filling system for suction cups according to claim 1, characterized in that: The interior of the top plate (5) is mounted on the surface of the motor base (102), the interior of the bottom plate (6) is mounted on the surface of the suction cup motor (301), and two cylinders mounted on the interior of the bottom plate (6) are further mounted on the interior of the top plate (5).

7. A method for using a one-to-one automatic liquid injection system for suction cup liquid injection according to any one of claims 1 to 6, comprising the following steps: Step 1: The suction cup motor (301) works, and the rotating gear (302) drives the rack (303), so that the two suction cup bodies (7) at the bottom of the two movable beams (305) move closer together and suck the battery air bag; Step 2: The suction cup motor (301) is reversed to a certain displacement, and the battery air bags are opened by using the two suction cup bodies (7). If all eight batteries are not opened, repeat the second and third steps until all are opened, or the best number is reached. Step 3: The lifting motor (101) rotates the ball screw (106), and the injection needle expansion assembly (2) is linked to descend to a certain position. The expansion rod (203) is inserted into the opened battery air bag, and the expansion cylinder (1010) is extended to drive the expansion rod (203) to descend to expand the battery. If the expansion cylinder (1010) on the top of the battery is not sucked open, it will not be extended. Step 4, after the expansion, the lifting motor (101) is reversed, the expansion rod (203) is lifted to a certain height, and the liquid injection is started. During the injection, the two drain valves (408) are opened, and the electrolyte in the lower tank body (403) enters the two liquid inlet joints (82) through the two drain valves (408) and the two hoses. The electrolyte is respectively input into the two pump bodies (81) by the two liquid inlet joints (82). The electrolyte is discharged into the interior of the eight connectors (202) through the hoses through the four drain joints (83) of the two pump bodies (81). During the injection, each expansion rod (203) corresponds to an injection needle, and each injection needle corresponds to a battery. The battery and the expansion rod (203) are one-to-one; Step 5: After the liquid injection is completed, the lifting motor (101) returns to the origin; Step 6: The four-link liquid injection pump (8) breaks the vacuum. Under the action of the suction cup motor (301), the four-link liquid injection pump (8) returns to the origin, completes the liquid injection, and waits for the next liquid injection to start.

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