A lithium battery module automatic assembly production line

Abstract

The present invention provides an automatic assembly production line for lithium battery modules, which belongs to the field of electrode welding technology. The automatic assembly production line for lithium battery modules includes a main frame, a feed conveyor frame and a discharge conveyor frame are respectively placed at both ends of the main frame, a lithium battery module is placed on the top surface of the feed conveyor frame, a top frame is installed on the top surface of the main frame, and a C-shaped frame is arranged on the top surface of the top frame. In the process of the lithium battery module pushing the baffle to move, the present invention drives the clamping block to be inserted and pulled back and forth inside the installation box one, intermittently blocks the air inlet pipe, and the inert gas or mixed protective gas in the external gas cylinder can enter the interior of the installation box one, and finally released to the bottom of the horizontal movable frame through the gas outlet frame, so that the bottom of the horizontal movable frame is filled with inert gas, thereby effectively protecting the electrode during the subsequent electrode welding process.

Description

Technical Field

[0001] The present invention relates to the technical field of electrode welding, and in particular to an automatic assembly production line for lithium battery modules. Background Art

[0002] A lithium battery module is an integrated battery system composed of multiple lithium battery cells. It is usually used to increase the capacity, output voltage or overall performance of the battery. It is widely used in various electronic devices, electric vehicles, energy storage systems and other fields. In the assembly process of lithium battery modules, electrode welding is a key step. The quality of welding directly affects the performance, safety and reliability of the battery.

[0003] When welding lithium battery electrodes, welding machines are generally used for welding operations. However, there are still some problems with the existing welding machines during actual use. For example, when the existing welding machines are used to weld lithium battery module electrodes, the welding head will generate a lot of heat during the welding process. During this period, the temperature of the gasket used to connect the electrodes is low, which will produce a huge temperature difference, and then generate thermal stress, which will cause bubbles in the weld and even cracks, affecting the strength of the weld. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides a lithium battery module automatic assembly production line that overcomes the above technical problems or at least partially solves the above problems.

[0005] The present invention is achieved in that:

[0006] The present invention provides an automatic assembly production line for lithium battery modules, comprising a main frame, a transverse movable frame is arranged on the top surface of the main frame, a longitudinal movable frame is movably mounted on one side surface of the transverse movable frame, a plurality of welding heads are fixedly mounted on one side surface of the longitudinal movable frame, a feeding conveying frame and a discharging conveying frame are respectively placed on both ends of the main frame, a lithium battery module is placed on the top surface of the feeding conveying frame, a top frame is mounted on the top surface of the main frame, and a C-shaped frame is arranged on the top surface of the top frame;

[0007] A driving assembly is arranged inside the top frame, and the driving assembly includes a guide rail frame. There are two guide rail frames, and the two guide rail frames are symmetrically mounted on the inner walls of both sides of the top frame. The outer surfaces of the two guide rail frames are movably sleeved with movable sleeve frames, and the two ends of the C-shaped frame are respectively fixedly mounted on one side surface of the two movable sleeve frames;

[0008] A first welding protection assembly is disposed on the top surface of the longitudinal moving frame. The first welding protection assembly includes a plurality of installation boxes 1, each of which has a snap-in block movably inserted therein. The first welding protection assembly is used for releasing a protective mixed gas during welding.

[0009] The top surface of the top frame is provided with a second welding protection assembly, and the second welding protection assembly includes a second installation box. There are multiple installation boxes two, and the multiple installation boxes two are all fixedly installed on the top surface of the top frame. The top surfaces of the multiple installation boxes two are all fixedly installed with airbags.

[0010] In a preferred solution, a top plate is fixedly installed on the top surface of the movable sleeve frame, a positioning column is fixedly installed on the top surface of the top plate, a socket column is movably socketed on the outer surface of the positioning column, a baffle is fixedly installed on the outer surface of the socket column, a positioning groove is provided on the outer surface of the socket column, a mounting plate 1 is fixedly installed on the top surface of the top plate, an electric telescopic rod is fixedly installed on one side surface of the mounting plate 1, a positioning block is fixedly installed on the output end of the electric telescopic rod, and the positioning block is inserted into the inside of the positioning groove.

[0011] In a preferred solution, a mounting plate 2 is fixedly installed on the bottom surface of the movable sleeve frame, a return spring 1 is fixedly connected between one side surface of the mounting plate 2 and the inner side surface of the top frame, an extension rod is fixedly connected to the outer surface of the top frame on one side of the mounting plate 1, a touch switch is fixedly installed on one end of the extension rod, and the touch switch is electrically connected to the electric telescopic rod.

[0012] In a preferred solution, a circular plate is fixedly mounted on the top surface of the positioning column, and a second reset spring is fixedly connected between the bottom surface of the circular plate and the top surface of the sleeve column, and the second reset spring is used to reset the baffle.

[0013] In a preferred solution, a rectangular plate is fixedly installed on one side surface of the clamping block, a mounting shaft is fixedly connected to the inner side of the rectangular plate, an air inlet pipe is fixedly connected to the top surface of the mounting box 1, a diversion pipe is fixedly connected to the top of the air inlet pipe, an external pipe is fixedly connected to the top surface of the diversion pipe, a connecting pipe 1 is fixedly connected to the one side surface of the mounting box 1, an air outlet rack is fixedly connected to the bottom surface of the connecting pipe 1, and the air outlet rack is arranged at the bottom end of the longitudinal movable rack.

[0014] In a preferred solution, a vertical frame is provided on one side surface of the top frame located at the transverse movable frame, a crankshaft is rotatably installed inside the vertical frame, and a connecting plate is movably connected between the crankshaft and the installation shaft.

[0015] In a preferred solution, a through groove is formed through the top surface of the second installation box, a connecting block is movably connected inside the through groove, an airbag is also installed inside the second installation box, an extrusion plate is provided on one side of the airbag, the extrusion plate is movably connected inside the second installation box, and one side surface of the extrusion plate is bonded to one side surface of the airbag, one end of the connecting block is fixedly connected to the top surface of the extrusion plate, and the other end of the extrusion plate is fixedly connected to the bottom surface of the C-shaped frame, an extension tube is fixedly connected to one side surface of the second installation box, a one-way valve 1 is fixedly installed on the outer surface of the extension tube, and one end of the extension tube extends to the bottom of the transverse movable frame.

[0016] In a preferred solution, a hollow frame and a rectangular tube are fixedly installed on the bottom surface of the C-shaped frame, the rectangular tube is connected to the airbag, a connecting tube 2 is fixedly connected between the hollow frame and the rectangular tube, and a one-way valve 2 is fixedly installed on the outer surface of the connecting tube 2.

[0017] In a preferred embodiment, a third welding protection assembly is provided on the outer side of the top frame, and the third welding protection assembly includes an extension plate 1, which is fixedly mounted on the side surface of the C-frame away from the transverse moving frame, and a rotating shaft 1 is rotatably mounted inside the extension plate 1, and a rotating roller 1 is fixedly sleeved on the outer surface of the rotating shaft 1, and a cleaning sleeve is sleeved on the outer surface of the rotating roller 1, and an extension plate 2 is fixedly mounted on the other side of the C-frame, and a rotating shaft 2 is rotatably mounted inside the extension plate 2, and a rotating roller 2 is fixedly sleeved on the outer surface of the rotating shaft 2, and a friction sleeve is fixedly mounted on the outer surface of the rotating roller 2.

[0018] In a preferred embodiment, gear 1 and gear 2 are fixedly mounted on one end of the rotating shaft 1 and the rotating shaft 2, respectively, and tooth plate 1 and tooth plate 2 are fixedly mounted on both side surfaces of the C-shaped frame, respectively, and the tooth plate 1 and tooth plate 2 are respectively meshed with gear 1 and gear 2.

[0019] The present invention provides an automatic assembly production line for lithium battery modules, and its beneficial effects include:

[0020] 1. By setting the first welding protection component, when the lithium battery module pushes the baffle to move, it can drive the C-frame to move above the top frame, drive the clamping block to be inserted and pulled back and forth inside the installation box one, and intermittently block the air inlet pipe. The inert gas or mixed protective gas in the external gas cylinder can enter the interior of the installation box one. The gas entering the interior of the installation box one can be pressed into the interior of the connecting pipe one through the movement of the clamping block, and finally released to the bottom of the horizontal movable frame through the gas outlet frame, so that the bottom of the horizontal movable frame is filled with inert gas, thereby effectively protecting the electrode during the subsequent electrode welding process.

[0021] 2. By setting up the second welding protection component, when the C-frame moves under the push of the lithium battery module, it can drive the extrusion plate to move inside the installation box 2, and squeeze the airbag during the movement. During the extrusion process, the gas inside the airbag can be squeezed into the inside of the rectangular tube, and finally enter the inside of the hollow frame through the connecting tube 2, and finally sprayed toward the lithium battery module passing below through the air outlet nozzle, so as to clean the electrodes of the lithium battery module, so that the electrodes remain clean during the welding process, thereby improving the welding quality.

[0022] 3. By setting up the third welding protection component, as the C-frame moves, the tooth plate 1 and the tooth plate 2 can be driven to move. During the movement, the gear 1 and the gear 2 can be driven to rotate respectively, and then the rotating shaft 1 and the rotating shaft 2 can be rotated, thereby driving the cleaning sleeve and the friction sleeve to rotate. When the lithium battery module passes under the cleaning sleeve, the impurities adhering to the outer surface of the electrode of the lithium battery module can be cleaned by the rotation of the cleaning sleeve, thereby ensuring that there will be no impurities in the electrodes of the lithium battery module during the subsequent welding process, thereby improving the quality of welding, and as the lithium battery module moves, after being cleaned again by the second welding protection component, it can reach the bottom of the friction sleeve, and the rotation of the friction sleeve can frictionally preheat the electrodes of the lithium battery module passing through, so that there will be no excessive temperature difference in the subsequent welding process, thereby further improving the quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is an overall stereogram provided by an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the structure of a welding head provided in an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the structure of a first welding protection assembly provided in an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the structure of a drive assembly provided in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the second structure of a return spring provided in an embodiment of the present invention;

[0029] Figure 6A schematic diagram of the cross-sectional structure of the installation box provided in the embodiment of the present invention;

[0030] Figure 7 A schematic cross-sectional structure diagram of an installation box provided in an embodiment of the present invention;

[0031] Figure 8 A schematic diagram of the structure of a third welding protection assembly provided in an embodiment of the present invention;

[0032] Fig. 9 This is a schematic bottom view of the third welding protection assembly provided in an embodiment of the present invention.

[0033] In the figure: 1, main frame; 2, horizontal moving frame; 3, longitudinal moving frame; 4, welding head; 5, feeding conveyor frame; 6, lithium battery module; 7, unloading conveyor frame; 8, top frame; 9, driving assembly; 901, guide rail frame; 902, moving sleeve frame; 903, top plate; 904, positioning column; 905, sleeve column; 906, baffle; 907, positioning groove; 908, mounting plate 1; 909, electric telescopic rod; 910, positioning block; 911, extension rod; 912, touch switch; 913, mounting plate 2; 914, reset spring 1; 915, round plate; 916, reset spring 2; 10, first welding protection assembly; 1001, mounting box 1; 1002, clamping block; 1003, rectangular plate; 1004, mounting shaft; 1005, stand; 1006, crankshaft; 1007, connecting plate; 1008, intake pipe; 1009, shunt pipe; 1010, external pipe; 1011, connecting pipe 1; 1012, outlet frame; 1013, pulley; 1014, transmission belt; 11, second welding protection assembly; 1101, installation box 2; 1102, through slot; 1103, air bag; 1104, extrusion plate; 1105, connecting block; 1106, extension pipe; 1107, one-way valve 1; 1108, rectangular pipe; 1109, connecting pipe 2; 1110, one-way valve 2; 1111, hollow frame; 1112, outlet nozzle; 12, third welding Protection components; 1201, extension plate 1; 1202, rotating shaft 1; 1203, roller 1; 1204, cleaning sleeve; 1205, extension plate 2; 1206, rotating shaft 2; 1207, roller 2; 1208, friction sleeve; 1209, gear 1; 1210, gear 2; 1211, tooth plate 1; 1212, tooth plate 2; 1213, anti-slip frame; 1214, horizontal plate; 1215, cleaning frame; 1216, connecting pipe; 13, C-type frame. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Reference Figure 1-Figure 9 The present invention provides a technical solution: an automatic assembly production line for lithium battery modules, comprising a main frame 1, a transverse movable frame 2 is arranged on the top surface of the main frame 1, a longitudinal movable frame 3 is movably installed on one side surface of the transverse movable frame 2, a plurality of welding heads 4 are fixedly installed on one side surface of the longitudinal movable frame 3, a feed conveying frame 5 and a discharge conveying frame 7 are respectively placed at both ends of the main frame 1, a lithium battery module 6 is placed on the top surface of the feed conveying frame 5, a top frame 8 is installed on the top surface of the main frame 1, and a C-shaped frame 13 is arranged on the top surface of the top frame 8;

[0036] A driving assembly 9 is arranged inside the top frame 8, and the driving assembly 9 includes a guide rail frame 901. There are two guide rail frames 901, which are symmetrically mounted on the inner walls of both sides of the top frame 8. The outer surfaces of the two guide rail frames 901 are movably sleeved with a movable sleeve frame 902, and the two ends of the C-shaped frame 13 are respectively fixedly mounted on one side surface of the two movable sleeve frames 902;

[0037] A top plate 903 is fixedly installed on the top surface of the movable sleeve frame 902, a positioning column 904 is fixedly installed on the top surface of the top plate 903, a sleeve column 905 is movably sleeved on the outer surface of the positioning column 904, a baffle 906 is fixedly installed on the outer surface of the sleeve column 905, a positioning groove 907 is provided on the outer surface of the sleeve column 905, a mounting plate 908 is fixedly installed on the top surface of the top plate 903, an electric telescopic rod 909 is fixedly installed on one side surface of the mounting plate 908, and the output end of the electric telescopic rod 909 is fixedly installed A positioning block 910 is installed, and the positioning block 910 is inserted into the inside of the positioning groove 907. A mounting plate 2 913 is fixedly installed on the bottom surface of the movable sleeve 902. A return spring 1 914 is fixedly connected between one side surface of the mounting plate 2 913 and the inner side surface of the top frame 8. An extension rod 911 is fixedly connected to the outer surface of the top frame 8 located on the side of the mounting plate 1 908. A touch switch 912 is fixedly installed on one end of the extension rod 911. The touch switch 912 is electrically connected to the electric telescopic rod 909.

[0038] During operation, when welding the electrodes of the lithium battery module 6, the processed lithium battery module 6 is first placed on the top surface of the feed conveyor rack 5, and is transported to the top surface of the main frame 1 by the feed conveyor rack 5, and then the external gas cylinder is connected to the external pipe 1010 through a pipeline. When the lithium battery module 6 reaches the top surface of the main frame 1, the lithium battery module 6 will be slowly transported to the bottom of the horizontal moving frame 2 through the main frame 1. When the lithium battery module 6 reaches the top surface of the main frame 1, it will contact the baffle 906 as the main frame 1 is transported. During the contact process, the movable sleeve 902 can be pushed to move on the outer surface of the guide frame 901. During the movement, since the C-frame 13 is fixedly installed on the outer surface of the movable sleeve 902, as the lithium battery module 6, pushes the movable sleeve frame 902 to move synchronously. When the mounting plate 908 contacts the touch switch 912, the touch switch 912 can be used to control the electric telescopic rod 909 to shrink, and the positioning block 910 can be pulled out from the inside of the positioning groove 907. When the sleeve column 905 loses its limit and is blocked by the touch switch 912, as the lithium battery module 6 moves, the baffle 906 can be opened, and then the movable sleeve frame 902 returns to its original position driven by the reset spring 914 to connect the next lithium battery module 6. Through the set driving component 9, it is possible to achieve the operation of each component by relying on the movement of the lithium battery module 6 without using other driving parts, thereby greatly improving the overall practicality of the device.

[0039] A circular plate 915 is fixedly mounted on the top surface of the positioning column 904 , and a second reset spring 916 is fixedly connected between the bottom surface of the circular plate 915 and the top surface of the sleeve column 905 . The second reset spring 916 is used to reset the baffle 906 .

[0040] During operation, after the sleeve column 905 loses its limit, the sleeve column 905 rotates on the outer surface of the positioning column 904 under the movement of the lithium battery module 6, and the baffle 906 is in an open state. During the rotation of the sleeve column 905, the reset spring 2 916 can be deformed. When the lithium battery module 6 passes through the baffle 906, the baffle 906 can be driven to reset, and the movable sleeve frame 902 returns to its original position under the action of the reset spring 1 914. In the process of returning, the mounting plate 1 908 loses the squeezing of the touch switch 912, so that the electric telescopic rod 909 drives the positioning block 910 to fit the outer surface of the sleeve column 905, until the sleeve column 905 returns to its original position under the reset action of the reset spring 2 916, and the positioning block 910 can be reinserted into the interior of the positioning groove 907.

[0041] The top surface of the longitudinal moving frame 3 is provided with a first welding protection assembly 10, which includes a plurality of installation boxes 1001, each of which has a snap-in block 1002 movably inserted therein, and the first welding protection assembly 10 is used for releasing the protective mixed gas during welding;

[0042] A rectangular plate 1003 is fixedly installed on one side surface of the clamping block 1002, and a mounting shaft 1004 is fixedly connected to the inner side of the rectangular plate 1003. An air inlet pipe 1008 is fixedly connected to the top surface of the mounting box 1001, and a shunt pipe 1009 is fixedly connected to the top of the air inlet pipe 1008. An external pipe 1010 is fixedly connected to the top surface of the shunt pipe 1009. A connecting pipe 1011 is fixedly connected to one side surface of the mounting box 1001, and an air outlet pipe 1011 is fixedly connected to the bottom surface of the connecting pipe 1011. The air outlet frame 1012 is arranged at the bottom end of the longitudinal moving frame 3, and a vertical frame 1005 is arranged on one side surface of the top frame 8 located at the transverse moving frame 2, and a crankshaft 1006 is rotatably installed inside the vertical frame 1005, and a connecting plate 1007 is movably connected between the crankshaft 1006 and the installation shaft 1004, wherein a pulley 1013 is fixedly installed on one side of the gear 2 1210 and one end of the crankshaft 1006, and a transmission belt 1014 is sleeved between the two pulleys 1013.

[0043] During operation, when the lithium battery module 6 pushes the baffle 906 to move, it can drive the C-frame 13 to move above the top frame 8. When the C-frame 13 moves, it can drive the tooth plate 1212 to move synchronously, thereby driving the gear 1210 to rotate. During the rotation of the gear 1210, the crankshaft 1006 can be driven to rotate under the action of the pulley 1013 and the transmission belt 1014, thereby driving the clamping block 1002 to be inserted and withdrawn back and forth inside the installation box 1001 under the action of the connecting plate 1007. When the clamping block 1002 moves back and forth inside the installation box 1001, the intake pipe 1008 can be intermittently blocked. When tube 1008 loses its seal, the inert gas or mixed protective gas in the external gas cylinder can enter the interior of the installation box 1001 through the external tube 1010, the shunt tube 1009 and the air inlet pipe 1008. After the clamping block 1002 seals the air inlet pipe 1008, the gas will not enter the interior of the installation box 1001, and the gas entering the interior of the installation box 1001 can be pressed into the interior of the connecting tube 1011 through the movement of the clamping block 1002, and finally released to the bottom of the horizontal movable frame 2 through the gas outlet frame 1012, so that the bottom of the horizontal movable frame 2 is filled with inert gas, thereby effectively protecting the electrode during the subsequent electrode welding process.

[0044] In addition, a one-way valve three is installed on the outer surface of the air inlet pipe 1008. When the clamping block 1002 moves toward the outside of the installation box 1001, the gas under the horizontal movable frame 2 can be sucked into the interior of the installation box 1001 and mixed with the gas entering the interior of the installation box 1001. When the air inlet pipe 1008 passes into a mixed gas, the mixed gas can be diluted to avoid the problem of excessive concentration of inert gas affecting welding quality, and a turbulent airflow is generated inside the installation box 1001, thereby effectively mixing the mixed gas. This working mode is suitable for an environment where two or more inert gases are passed into the air inlet pipe 1008, thereby further improving the overall practicality of the device.

[0045] The top surface of the top frame 8 is provided with a second welding protection assembly 11, and the second welding protection assembly 11 includes a second installation box 1101. The number of the second installation boxes 1101 is multiple, and the multiple second installation boxes 1101 are all fixedly installed on the top surface of the top frame 8. The top surfaces of the multiple second installation boxes 1101 are all fixedly installed with airbags 1103;

[0046] A through slot 1102 is formed on the top surface of the second installation box 1101, and a connecting block 1105 is movably connected to the inside of the through slot 1102. An air bag 1103 is also installed inside the second installation box 1101. An extrusion plate 1104 is provided on one side of the air bag 1103. The extrusion plate 1104 is movably connected to the inside of the second installation box 1101, and one side surface of the extrusion plate 1104 is bonded to one side surface of the air bag 1103. One end of the connecting block 1105 is fixedly connected to the top surface of the extrusion plate 1104, and the other end of the extrusion plate 1104 is fixedly connected to the top surface of the C-shaped frame 13. The bottom surface is fixedly connected, an extension tube 1106 is fixedly connected to one side surface of the installation box 1101, a one-way valve 1107 is fixedly installed on the outer surface of the extension tube 1106, one end of the extension tube 1106 extends to the bottom of the transverse movable frame 2, a hollow frame 1111 and a rectangular tube 1108 are fixedly installed on the bottom surface of the C-shaped frame 13, the rectangular tube 1108 is connected to the airbag 1103, a connecting tube 1109 is fixedly connected between the hollow frame 1111 and the rectangular tube 1108, and a one-way valve 1110 is fixedly installed on the outer surface of the connecting tube 1109.

[0047] During operation, when the C-shaped frame 13 moves under the push of the lithium battery module 6, it can drive the extrusion plate 1104 to move inside the second installation box 1101, and squeeze the airbag 1103 during the movement. During the squeezing process, the gas inside the airbag 1103 can be squeezed into the inside of the rectangular tube 1108, and finally enter the inside of the hollow frame 1111 through the second connecting tube 1109, and finally sprayed toward the lithium battery module 6 passing below through the air outlet nozzle 1112, so as to clean the electrodes of the lithium battery module 6, so that the electrodes are kept clean during the welding process, thereby improving the quality of welding;

[0048] Moreover, in the process of the C-type frame 13 following the resetting of the movable sleeve frame 902, the airbag 1103 can be driven to inhale gas through the extension tube 1106. Since the extension tube 1106 extends to the bottom of the horizontal movable frame 2, the residual inert gas under the horizontal movable frame 2 can be inhaled, and the residual inert gas is inhaled into the airbag 1103 for storage. In addition, the gas used for cleaning the electrode contains inert gas, which can allow the inert gas to enter the interior of the lithium battery module 6, thereby further improving the welding quality during the welding process, and making full use of the inert gas to prevent waste.

[0049] A third welding protection assembly 12 is arranged on the outer side of the top frame 8, and the third welding protection assembly 12 includes an extension plate 1201, and the extension plate 1201 is fixedly installed on the side surface of the C-frame 13 away from the horizontal moving frame 2, and a rotating shaft 1202 is rotatably installed inside the extension plate 1201, and a roller 1203 is fixedly sleeved on the outer surface of the rotating shaft 1202, and a cleaning sleeve 1204 is sleeved on the outer surface of the rotating roller 1203. An extension plate 2 1205 is fixedly installed on the other side of the C-frame 13, and a rotating shaft 2 1206 is rotatably installed inside the extension plate 1205, and a rotating roller 2 1207 is fixedly sleeved on the outer surface of the rotating shaft 1206. A friction sleeve 1208 is fixedly installed on the outer surface of the roller 2 1207, and gear 1209 and gear 2 1210 are fixedly installed on one end of the rotating shaft 1202 and the rotating shaft 2 1206 respectively. Tooth plate 1211 and tooth plate 2 1212 are fixedly installed on the two side surfaces of the C-shaped frame 13 respectively. Tooth plate 1211 and tooth plate 2 1212 are respectively meshed with gear 1 1209 and gear 2 1210. Two anti-slip frames 1213 are fixedly installed on the outer surface of the top frame 8. Tooth plate 2 1212 and tooth plate 1 1211 are movably plugged into the inside of the anti-slip frame 1213 to achieve stable installation of tooth plate 2 1212 and tooth plate 1 1211.

[0050] During operation, as the C-frame 13 moves, the tooth plate 1211 and the tooth plate 2 1212 can be driven to move. During the movement, the gear 1 1209 and the gear 2 1210 can be driven to rotate respectively, thereby rotating the rotating shaft 1202 and the rotating shaft 2 1206, thereby driving the cleaning sleeve 1204 and the friction sleeve 1208 to rotate. When the lithium battery module 6 passes under the cleaning sleeve 1204, the impurities adhering to the outer surface of the electrode of the lithium battery module 6 can be cleaned by the rotation of the cleaning sleeve 1204, thereby ensuring that there will be no impurities in the electrode of the lithium battery module 6 during the subsequent welding process, thereby improving the quality of welding, and as the lithium battery module 6 moves, after being cleaned again by the second welding protection component 11, it can reach the bottom of the friction sleeve 1208, and the rotation of the friction sleeve 1208 can frictionally preheat the electrode of the lithium battery module 6 passing through, so that there will be no excessive temperature difference during the subsequent welding process, thereby further improving the quality of welding.

[0051] Moreover, no matter how the movable sleeve frame 902 moves back and forth on the outer surface of the guide rail frame 901, it can drive the C-frame 13 to move, thereby causing the tooth plate 1211 and the gear 1 1209 and the tooth plate 2 1212 and the gear 2 1210 to rotate, thereby maintaining a certain duration, thereby ensuring the subsequent welding quality.

[0052] Among them, a transverse plate 1214 is fixedly installed on the top surface of the extension plate 1201, a cleaning frame 1215 is fixedly installed on the top surface of the transverse plate 1214, and a connecting pipe 1216 is fixedly connected between the hollow frame 1111 and the cleaning frame 1215.

[0053] During operation, when the cleaning sleeve 1204 cleans the electrode, the gas entering the hollow frame 1111 can enter the interior of the cleaning frame 1215 through the connecting pipe 1216, and be blown toward the cleaning sleeve 1204 through the cleaning frame 1215, thereby blowing out impurities adhering to the outside of the cleaning sleeve 1204, thereby cleaning the cleaning sleeve 1204, and further improving the cleaning effect of the cleaning sleeve 1204 on the electrode.

[0054] Specifically, the working process or working principle of the automatic assembly production line of lithium battery modules is as follows: when in use, the processed lithium battery module 6 is first placed on the top surface of the feed conveyor rack 5, and is transported to the top surface of the main frame 1 by the feed conveyor rack 5, and then the external gas cylinder is connected to the external pipe 1010 through a pipeline. When the lithium battery module 6 reaches the top surface of the main frame 1, the lithium battery module 6 will be slowly transported to the bottom of the horizontal moving frame 2 through the main frame 1. When the lithium battery module 6 reaches the top surface of the main frame 1, it will contact the baffle 906 as the main frame 1 is transported. During the contact process, it can push the movable sleeve frame 902 to move on the outer surface of the guide frame 901. During the movement, due to the C-type The frame 13 is fixedly mounted on the outer surface of the movable sleeve frame 902. With the movement of the lithium battery module 6, the movable sleeve frame 902 is pushed to move synchronously. When the mounting plate 908 contacts the touch switch 912, the electric telescopic rod 909 can be controlled to contract through the touch switch 912, and the positioning block 910 can be pulled out from the inside of the positioning groove 907. When the sleeve column 905 loses its limit and is blocked by the touch switch 912, with the movement of the lithium battery module 6, the baffle 906 can be opened, and then the movable sleeve frame 902 returns to its original position driven by the return spring 914 to connect the next lithium battery module 6, and the lithium battery module 6 after welding can be transported out through the unloading conveyor frame 7;

[0055] When the lithium battery module 6 pushes the baffle 906 to move, it can drive the C-frame 13 to move above the top frame 8. When the C-frame 13 moves, it can drive the gear plate 1212 to move synchronously, thereby driving the gear 1210 to rotate. During the rotation of the gear 1210, the crankshaft 1006 can be driven to rotate under the action of the pulley 1013 and the transmission belt 1014, thereby driving the clamping block 1002 to be inserted and withdrawn back and forth inside the installation box 1 1001 under the action of the connecting plate 1007, so that the bottom of the horizontal moving frame 2 is filled with inert gas, thereby effectively protecting the electrode during the subsequent electrode welding process;

[0056] When the C-shaped frame 13 moves under the push of the lithium battery module 6, it can drive the extrusion plate 1104 to move inside the second installation box 1101, and squeeze the airbag 1103 during the movement. During the squeezing process, the gas inside the airbag 1103 can be squeezed into the inside of the rectangular tube 1108, and finally enter the inside of the hollow frame 1111 through the second connecting tube 1109, and finally sprayed toward the lithium battery module 6 passing below through the air outlet nozzle 1112, so as to clean the electrodes of the lithium battery module 6, so that the electrodes are kept clean during the welding process;

[0057] As the C-frame 13 moves, it can drive tooth plate 1211 and tooth plate 2 1212 to move. During the movement, it can drive gear 1 1209 and gear 2 1210 to rotate respectively, thereby rotating shaft 1202 and rotating shaft 2 1206, thereby driving cleaning sleeve 1204 and friction sleeve 1208 to rotate. When the lithium battery module 6 passes under the cleaning sleeve 1204, the impurities adhering to the outer surface of the electrode of the lithium battery module 6 can be cleaned by the rotation of the cleaning sleeve 1204, thereby ensuring that there will be no impurities in the electrode of the lithium battery module 6 during the subsequent welding process, thereby improving the quality of welding, and as the lithium battery module 6 moves, after being cleaned again by the second welding protection component 11, it can reach the bottom of the friction sleeve 1208, and the rotation of the friction sleeve 1208 can frictionally preheat the electrode of the lithium battery module 6 passing through, so that there will be no excessive temperature difference during the subsequent welding process.

Claims

1. A lithium battery module automatic assembly production line, comprising a main frame (1), a top surface of the main frame (1) being provided with a transverse movable frame (2), a side surface of the transverse movable frame (2) being movably mounted with a longitudinal movable frame (3), and a side surface of the longitudinal movable frame (3) being fixedly mounted with a plurality of welding heads (4), characterized in that: A feed conveyor frame (5) and a discharge conveyor frame (7) are respectively placed at both ends of the main frame (1); a lithium battery module (6) is placed on the top surface of the feed conveyor frame (5); a top frame (8) is installed on the top surface of the main frame (1); and a C-shaped frame (13) is arranged on the top surface of the top frame (8); A driving assembly (9) is arranged inside the top frame (8), and the driving assembly (9) comprises a guide rail frame (901). The number of the guide rail frames (901) is two, and the two guide rail frames (901) are symmetrically mounted on the inner walls of both sides of the top frame (8). The outer surfaces of the two guide rail frames (901) are movably sleeved with a movable sleeve frame (902), and the two ends of the C-shaped frame (13) are respectively fixedly mounted on one side surface of the two movable sleeve frames (902); A first welding protection assembly (10) is arranged on the top surface of the longitudinal movable frame (3), the first welding protection assembly (10) comprising a plurality of installation boxes (1001), each of the plurality of installation boxes (1001) being movably plugged with a clamping block (1002), the first welding protection assembly (10) being arranged to release a protective mixed gas during welding; The top surface of the top frame (8) is provided with a second welding protection component (11), and the second welding protection component (11) includes a second installation box (1101). There are multiple second installation boxes (1101), and the multiple second installation boxes (1101) are fixedly installed on the top surface of the top frame (8). The top surfaces of the multiple second installation boxes (1101) are fixedly installed with airbags (1103).

2. The automatic assembly line for lithium battery modules according to claim 1, characterized in that: A top plate (903) is fixedly mounted on the top surface of the movable sleeve frame (902), a positioning column (904) is fixedly mounted on the top surface of the top plate (903), a sleeve column (905) is movably sleeved on the outer surface of the positioning column (904), a baffle (906) is fixedly mounted on the outer surface of the sleeve column (905), a positioning groove (907) is provided on the outer surface of the sleeve column (905), a mounting plate 1 (908) is fixedly mounted on the top surface of the top plate (903), an electric telescopic rod (909) is fixedly mounted on one side surface of the mounting plate 1 (908), a positioning block (910) is fixedly mounted on the output end of the electric telescopic rod (909), and the positioning block (910) is plugged into the inside of the positioning groove (907).

3. The automatic assembly line for lithium battery modules according to claim 2, characterized in that: A second mounting plate (913) is fixedly mounted on the bottom surface of the movable sleeve frame (902); a return spring (914) is fixedly connected between a side surface of the second mounting plate (913) and an inner side surface of the top frame (8); an extension rod (911) is fixedly connected to the outer surface of the top frame (8) located on the side of the first mounting plate (908); a touch switch (912) is fixedly mounted on one end of the extension rod (911); and the touch switch (912) is electrically connected to the electric telescopic rod (909).

4. The automatic assembly line for lithium battery modules according to claim 3, characterized in that: A circular plate (915) is fixedly mounted on the top surface of the positioning column (904), and a second reset spring (916) is fixedly connected between the bottom surface of the circular plate (915) and the top surface of the sleeve column (905). The second reset spring (916) is used to reset the baffle (906).

5. The automatic assembly line for lithium battery modules according to claim 4, characterized in that: A rectangular plate (1003) is fixedly mounted on one side surface of the clamping block (1002), a mounting shaft (1004) is fixedly connected to the inner side of the rectangular plate (1003), an air intake pipe (1008) is fixedly connected to the top surface of the mounting box (1001), a flow divider (1009) is fixedly connected to the top of the air intake pipe (1008), an external pipe (1010) is fixedly connected to the top surface of the flow divider (1009), a connecting pipe (1011) is fixedly connected to one side surface of the mounting box (1001), a gas outlet frame (1012) is fixedly connected to the bottom surface of the connecting pipe (1011), and the gas outlet frame (1012) is arranged at the bottom end of the longitudinal movable frame (3).

6. The automatic assembly line for lithium battery modules according to claim 1, characterized in that: A stand frame (1005) is provided on one side surface of the top frame (8) located at the transverse moving frame (2), a crankshaft (1006) is rotatably mounted inside the stand frame (1005), and a connecting plate (1007) is movably connected between the crankshaft (1006) and the mounting shaft (1004).

7. The automatic assembly line for lithium battery modules according to claim 1, characterized in that: A through slot (1102) is formed on the top surface of the second installation box (1101), and a connecting block (1105) is movably connected to the interior of the through slot (1102). An air bag (1103) is also installed inside the second installation box (1101), and an extrusion plate (1104) is provided on one side of the air bag (1103). The extrusion plate (1104) is movably connected to the interior of the second installation box (1101), and one side surface of the extrusion plate (1104) is in contact with the air bag (1103). ), one end of the connecting block (1105) is fixedly connected to the top surface of the extrusion plate (1104), and the other end of the extrusion plate (1104) is fixedly connected to the bottom surface of the C-shaped frame (13); an extension pipe (1106) is fixedly connected to the surface of one side of the installation box (1101), a one-way valve (1107) is fixedly installed on the outer surface of the extension pipe (1106), and one end of the extension pipe (1106) extends to the bottom of the horizontal movable frame (2).

8. The automatic assembly line for lithium battery modules according to claim 1, characterized in that: A hollow frame (1111) and a rectangular tube (1108) are fixedly mounted on the bottom surface of the C-shaped frame (13); the rectangular tube (1108) is in communication with the airbag (1103); a second connecting tube (1109) is fixedly connected between the hollow frame (1111) and the rectangular tube (1108); and a second one-way valve (1110) is fixedly mounted on the outer surface of the second connecting tube (1109).

9. The automatic assembly line for lithium battery modules according to claim 8, characterized in that: A third welding protection assembly (12) is arranged on the outer side of the top frame (8), and the third welding protection assembly (12) comprises an extension plate 1 (1201), the extension plate 1 (1201) is fixedly mounted on a side surface of the C-shaped frame (13) away from the transverse moving frame (2), a rotating shaft 1 (1202) is rotatably mounted inside the extension plate 1 (1201), a rotating roller 1 (1203) is fixedly sleeved on the outer surface of the rotating shaft 1 (1202), and a cleaning sleeve (1204) is sleeved on the outer surface of the rotating roller 1 (1203), and an extension plate 2 (1205) is fixedly mounted on the other side of the C-shaped frame (13), a rotating shaft 2 (1206) is rotatably mounted inside the extension plate 2 (1205), a rotating shaft 2 (1207) is fixedly sleeved on the outer surface of the rotating shaft 2 (1206), and a friction sleeve (1208) is fixedly mounted on the outer surface of the rotating roller 2 (1207).

10. The automatic assembly line for lithium battery modules according to claim 9, characterized in that: One end of the rotating shaft 1 (1202) and the rotating shaft 2 (1206) are respectively fixedly mounted with a gear 1 (1209) and a gear 2 (1210), and the two side surfaces of the C-shaped frame (13) are respectively fixedly mounted with a tooth plate 1 (1211) and a tooth plate 2 (1212), and the tooth plate 1 (1211) and the tooth plate 2 (1212) are respectively meshed with the gear 1 (1209) and the gear 2 (1210).

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