A lithium battery cell automatic assembly line

Abstract

The present invention discloses an automatic assembly line for lithium battery cells, and relates to the technical field of lithium battery assembly. The present invention comprises an assembly line main body, a conveyor belt group is arranged inside the assembly line main body, a plurality of placement frames are fixed outside the conveyor belt of the conveyor belt group, two U-shaped frames are fixed on the top of the assembly line main body, a gourd-shaped plate is fixed between the tops of the two U-shaped frames, a through-hole receiving plate is rotatably installed at the bottom of the inner wall of one side of the gourd-shaped plate, the through-hole receiving plate is driven by a motor, and the motor corresponding to the through-hole receiving plate is fixed at the bottom of the gourd-shaped plate. The present invention can effectively avoid the problem of incorrect installation of the cap and the battery cell to be assembled due to the protruding end of the cap not facing upward by cooperating with the through-hole receiving plate, the through-hole discharge plate, the rubber strip, the gourd-shaped plate, the electric control push rod, and the material guide tube to install the cap and the battery cell.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery assembly, in particular to an automatic assembly line for lithium battery cells. Background Art

[0002] The lithium battery cell assembly line generally includes cell shelling, cell bottom spot welding, cell steel shell grooving, cell cap welding and cell sealing. Each assembly link of the battery cell is completed through automated equipment. This production line improves assembly accuracy and efficiency to meet large-scale production needs.

[0003] A Chinese patent with patent announcement number CN109830760B discloses a fully automatic assembly line for lithium battery cells, including an assembly line conveyor belt, cells to be assembled, a support plate, a pushing mechanism, a storage hopper and a cap. A second discharge pipe is installed in the middle of the support plate, and both sides of the lower end surface of the second discharge pipe are hinged with curling edges through reset hinges. A fixed platform is provided on one side of the second discharge pipe, and a groove is opened on the upper surface of the fixed platform. A slider is accommodated inside the groove, and a baffle is fixed on the upper end surface of the slider. The storage hopper is located above the fixed platform, and the cap is located inside the storage hopper. A hose is fixed at the lower end of the storage hopper. When welding the cap of the cell of the patent, it is only necessary to put all the caps into the storage hopper. The caps can be pushed into the second discharge pipe by the second pushing mechanism, and the first pushing mechanism can push the caps out of the second discharge pipe until the caps are combined with the cell to be assembled and welding can be performed.

[0004] However, the current assembly line has the following problems: when installing the caps and the battery cells to be assembled, the assembly line mainly adopts the capping method pushed by a pushing mechanism to install the raised end of the cap facing upwards and the battery cells to be assembled. However, when the pushing mechanism is actually used, there is still a certain probability that the raised end of the cap is not facing upwards during the process of pushing the cap by the pushing mechanism. If the raised end of the cap is not facing upwards, the cap and the battery cells to be assembled will be incorrectly installed, thereby increasing the scrap rate of the caps and the battery cells. Therefore, we propose an automatic assembly line for lithium battery cells. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic assembly line for lithium battery cells, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic assembly line for lithium battery cells, comprising an assembly line main body, a conveyor belt group is arranged inside the assembly line main body, a plurality of placement frames are fixed outside the conveyor belt of the conveyor belt group, two U-shaped frames are fixed on the top of the assembly line main body, a gourd-shaped plate is fixed between the tops of the two U-shaped frames, a through-hole receiving plate is rotatably installed at the bottom of the inner wall of one side of the gourd-shaped plate, the through-hole receiving plate is driven by a motor, and a motor corresponding to the through-hole receiving plate is fixed to the bottom of the gourd-shaped plate, a through-hole matching the through-hole receiving plate is provided at the bottom of one side of the gourd-shaped plate, a through-hole discharge plate is rotatably installed at the bottom of the inner wall of the other side of the gourd-shaped plate, and the through-hole discharge plate is located above the through-hole receiving plate, a storage barrel is clamped on the top of the through-hole discharge plate, a material guide pipe is embedded in the bottom of the U-shaped frame located at the center of the assembly line main body, and the material guide pipe is located below the through-hole of the gourd-shaped plate, located at the center of the assembly line main body A U-shaped frame 2 is fixed to the outer wall of the U-shaped frame 1, an electric control push rod is fixed to the top of the U-shaped frame 2, the telescopic end of the electric control push rod is located above the through hole of the gourd-shaped plate, a plurality of rubber strips are evenly and equidistantly fixed at the bottom edge of the through hole of the through hole receiving plate, a centering device is arranged below the electric control push rod, and the through hole receiving plate is driven to rotate by a motor, and when the through hole of the through hole receiving plate rotates to the through hole position of the through hole discharging plate, the cap in the through hole of the through hole discharging plate will fall into the through hole receiving plate The rubber strip will receive the cap that falls into the through hole of the through hole receiving tray. When the cap in the through hole of the through hole receiving tray rotates to the through hole of the gourd-shaped tray, the electric control push rod is started, and the telescopic end of the electric control push rod moves downward. The telescopic end of the electric control push rod will first push the cap in the through hole of the through hole receiving tray to pass over the rubber strip, and then the cap moves downward along the material guide tube until the telescopic end of the electric control push rod pushes the cap onto the top of the battery cell to be assembled. At this time, the installed battery cell can proceed to the next step of welding.

[0007] The top inclined surfaces of the two L-shaped inclined plates are located on the spherical motion trajectory of the ball rod, and the spacing between the two L-shaped inclined plates is equal to the diameter of the ball rod. When a slight deviation occurs between the through hole of the through hole receiving plate and the through hole of the gourd-shaped plate and the through hole is not completely overlapped, the telescopic end of the electric control push rod will drive the ball rod to move downward each time the telescopic end of the electric control push rod moves downward, and the spherical shape of the ball rod pushes the top inclined part of the L-shaped inclined plate to drive the through hole receiving plate to actively rotate until the ball rod moves between the two L-shaped inclined plates.

[0008] According to the above technical solution, an arc-shaped plate is fixed to the rear side of the telescopic end of the electric control push rod, an L-shaped frame is fixed to the top of one side of the gourd-shaped plate, a hollow column is passed through the top of the L-shaped frame and slidably installed, and a spring is provided between the hollow column and the top of the L-shaped frame, a contact plate is fixed to the lower outer wall of the hollow column, the contact plate is located on the movement trajectory of the arc-shaped plate, a bearing plate is fixed to the bottom of the hollow column, a rubber oblique scraper ring is fixed to the outer wall of the bearing plate, a sliding column is slidably installed inside the hollow column, and a plurality of sliding columns are fixed to the lower outer wall of the sliding column A thin rod, one end of the thin rod away from the sliding column contacts the inner wall of the rubber oblique scraper ring, a friction plate is fixed on the top of the sliding column, and a friction rod is fixed on the top of the L-shaped frame. The outer wall of the friction plate contacts the outer wall of the friction rod. After the cap in the through hole of the through hole receiving plate is pushed out, the through hole of the through hole receiving plate without the cap will rotate to the position below the carrying plate. During each downward movement of the telescopic end of the electric control push rod, the telescopic end of the electric control push rod will drive the arc plate to move downward. When the arc plate moves to the contact plate position, the arc plate will push the contact plate to move downward. The contact plate drives the bearing plate and the rubber oblique scraper ring to move downward through the hollow column. At the same time, the hollow column drives the friction plate downward through the sliding column. Under the friction resistance between the friction plate and the friction rod, the friction plate drives the sliding column to move upward along the inside of the hollow column relative to the hollow column. At this time, when the hollow column continues to move downward, the hollow column drives the friction plate and the friction rod to slide and rub. When the friction plate drives the hollow column upward, the hollow column drives the thin rod to move upward. The thin rod pulls the inner wall of the rubber oblique scraper ring upward, thereby causing the rubber oblique scraper ring to shrink inward. When the rubber scraper ring moves into the through hole of the through hole receiving plate, it will not contact the through hole wall of the through hole receiving plate; when the arc plate no longer pushes the contact plate to move downward, the hollow column will be reset by the corresponding spring, and the hollow column will drive the friction plate to move upward. Under the friction force between the friction plate and the friction rod, the friction plate will drive the sliding column to move downward along the inside of the hollow column relative to the hollow column, and the hollow column will drive the thin rod to move downward. The thin rod no longer pulls the inner wall of the rubber scraper ring upward, and the rubber scraper ring is reset and contacts the through hole wall of the through hole receiving plate.

[0009] The three L-shaped oblique claws are evenly and equidistantly hinged on the outer wall of the material guide tube, and the three U-shaped rods are respectively fixed on the outer walls of the three L-shaped oblique claws, and the fixing ring is slidably installed inside the U-shaped rod. During each downward movement of the telescopic end of the electric control push rod, the telescopic end of the electric control push rod will drive the long plate to move downward, and the long plate drives the Y-shaped rod to move downward through the spring corresponding to the Y-shaped rod, and the Y-shaped rod drives the fixing ring to move downward, the fixing ring slides along the inside of the U-shaped rod, and the fixing ring pushes the L-shaped oblique claws to swing downward, and the three L-shaped oblique claws clamp and position the battery cell below the material guide tube.

[0010] According to the above technical solution, the centering device also includes six pressure plates, six folding bags, three T-shaped one-way air outlet pipes, and six one-way air inlet orifice plates. The six pressure plates are evenly and equidistantly fixed on the inner wall of the fixed ring, and the six one-way air inlet orifice plates are evenly and equidistantly fixed on the lower outer wall of the guide tube. One end of the six folding bags is respectively fixed to the bottom of the six pressure plates, and the other end of the six folding bags is respectively fixed to the top of the six one-way air inlet orifice plates. Two of the six folding bags are a group, and the three T-shaped The one-way air outlet pipes are respectively fixed between two adjacent folding bags, and one end of the T-shaped one-way air outlet pipe away from the folding bag passes through the outer wall of the guide pipe, and the T-shaped one-way air outlet pipe is inclined. A one-way air inlet hole for one-way air intake of the folding bag is fixed at the bottom of the one-way air inlet hole plate. At the same time, when the fixing ring moves downward, the pressure plate will be driven to move downward, and the pressure plate will squeeze the folding bag. The air in the folding bag will be sprayed toward the battery cell through the T-shaped one-way air outlet pipe, so that the air sprayed from the T-shaped one-way air outlet pipe will blow off foreign matter adhered to the top surface of the battery cell.

[0011] According to the above technical solution, three strip openings are opened on the outer wall of the material guide tube, and a guiding device is arranged inside the strip opening of the material guide tube, and the guiding device includes a rotating rod 1, a rotating rod 2, and a rubber belt. The rotating rod 1 is rotatably installed on the inner wall above the strip opening of the material guide tube, and the rotating rod 2 is rotatably installed on the inner wall below the strip opening of the material guide tube. The rubber belt is rotatably connected to the outside of the rotating rod 1 and the rotating rod 2. The side of the rubber belt close to the center of the material guide tube protrudes two centimeters beyond the inner diameter of the material guide tube, and the outer wall of the rubber belt is set as a rough surface. During the process of the telescopic end cap of the electric control push rod moving downward along the material guide tube, the cap entering the material guide tube will contact the outer wall of the rubber belt. Then, the electric control push rod pushes the cap to move downward between the three rubber belts. During this process, the three rubber belts will rotate between the corresponding rotating rods 1 and 2.

[0012] The present invention provides a lithium battery cell automatic assembly line, which has the following beneficial effects:

[0013] (1) The present invention cooperates with the through-hole material receiving tray, the through-hole material discharging tray, the rubber strip, the gourd-shaped tray, the electric control push rod, and the material guide tube to install the cap and the battery cell, which can effectively avoid the problem of incorrect installation of the cap and the battery cell to be assembled due to the raised end of the cap not facing upward; at the same time, the electric control push rod, the ball rod, the L-shaped inclined plate, and the through-hole material receiving tray cooperate to slightly correct the position of the through-hole material receiving tray, thereby avoiding the problem of abnormal installation of the cap due to slight deviation between the through hole of the through-hole material receiving tray and the through hole of the gourd-shaped tray; at the same time, the electric control push rod, the arc plate, the contact plate, the hollow column, the sliding column, the friction plate, the friction The rod cooperates, and when the hollow column moves downward, the rubber scraper ring will not contact the wall of the through-hole of the through-hole receiving tray when it moves into the through-hole of the through-hole receiving tray, and the rubber scraper ring will not push impurities at the wall of the through-hole of the through-hole receiving tray to the through-hole receiving tray and the gourd-shaped tray. When the hollow column moves downward, the rubber scraper ring will contact the wall of the through-hole of the through-hole receiving tray, and the rubber scraper ring will scrape off the impurities at the wall of the through-hole of the through-hole receiving tray, thereby avoiding the existence of impurities at the wall of the through-hole of the through-hole receiving tray, which affects the entry of the cap into the through-hole of the through-hole receiving tray, and the scraped impurities will fall on the surface of the carrying tray for collection.

[0014] (2) The present invention provides a centering device so that the electric control push rod, long plate, Y-shaped rod, fixed ring and U-shaped rod cooperate to drive the three L-shaped inclined claws to clamp and position the battery cell located below the material guide tube, thereby ensuring that the battery cell is at the center of the circle below the material guide tube, thereby avoiding the problem that the position of the battery cell below the material guide tube is deviated, the cap cannot be correctly docked on the battery cell, and the connection between the cap and the battery cell is unstable; at the same time, the fixed ring, pressure plate and folding bag cooperate to drive the air sprayed from the T-shaped one-way air outlet pipe to blow off foreign matter adhered to the top surface of the battery cell, thereby avoiding the problem that the foreign matter causes the cap to be unable to stably contact the top surface of the battery cell, resulting in unstable assembly.

[0015] (3) The present invention sets a guiding device so that the cap entering the guide tube will contact the outer wall of the rubber belt. The rubber belt can prevent direct contact between the guide tube and the inner wall of the cap, avoiding scratches or damage caused by friction. At the same time, the rubber belt can provide a certain degree of flexible support. The rubber belt can position the cap in the guide tube. The rubber belt improves the fault tolerance during the assembly process of the cap and the battery cell, and reduces the problems caused by inaccurate position between the cap and the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the present invention as a whole;

[0017] Figure 2 Schematic diagram of the local structure of the present invention Figure 1 ;

[0018] Figure 3 Schematic diagram of the local structure of the present invention Figure 2 ;

[0019] Figure 4 It is a schematic diagram of a local structural section of the present invention;

[0020] Figure 5 is a schematic diagram of a centering device of the present invention;

[0021] Figure 6 It is a partial structural schematic diagram of the centering device of the present invention;

[0022] Figure 7 is a schematic diagram of a guiding device of the present invention;

[0023] Figure 8 Schematic diagram of the local structure of the present invention Figure 3 ;

[0024] Fig. 9 Schematic diagram of the local structure of the present invention Figure 4 .

[0025] In the figure: 1, assembly line body; 2, conveyor belt group; 3, placement frame; 4, U-shaped frame 1; 5, gourd-shaped plate; 6, U-shaped frame 2; 7, electric push rod; 8, centering device; 81, long plate; 82, Y-shaped rod; 83, fixing ring; 84, U-shaped rod; 85, L-shaped inclined claw; 86, pressing plate; 87, folding bag; 88, T-shaped one-way air outlet pipe; 89, one-way air inlet hole plate; 9, guiding device; 91, rotating Stick one; 92, rotating stick two; 93, rubber belt; 10, through-hole discharge tray; 11, storage barrel; 12, through-hole receiving tray; 13, rubber strip; 14, L-shaped inclined plate; 15, ball rod; 16, material guide tube; 17, arc plate; 18, L-shaped frame; 19, hollow column; 20, contact plate; 21, load-bearing plate; 22, rubber oblique scraper ring; 23, thin rod; 24, sliding column; 25, friction plate; 26, friction rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] See also Figure 1 - Fig. 9One embodiment of the present invention is: an automatic assembly line for lithium battery cells, comprising an assembly line body 1, a conveyor belt group 2 is arranged inside the assembly line body 1, a plurality of placement frames 3 are fixed outside the conveyor belt of the conveyor belt group 2, two U-shaped frames 4 are fixed on the top of the assembly line body 1, a gourd-shaped plate 5 is fixed between the tops of the two U-shaped frames 4, a through-hole receiving plate 12 is rotatably installed at the bottom of the inner wall of one side of the gourd-shaped plate 5, the through-hole receiving plate 12 is driven by a motor, and the motor corresponding to the through-hole receiving plate 12 is fixed at the bottom of the gourd-shaped plate 5, a through-hole matching the through-hole receiving plate 12 is opened at the bottom of one side of the gourd-shaped plate 5, a through-hole discharge plate 10 is rotatably installed at the bottom of the inner wall of the other side of the gourd-shaped plate 5, and the through-hole discharge plate 10 is located at the through-hole receiving plate 10. A material storage barrel 11 is clamped on the top of the through-hole material receiving tray 12, a material guide tube 16 is embedded in the bottom of the U-shaped frame 4 located in the center of the assembly line main body 1, and the material guide tube 16 is located below the through-hole of the gourd-shaped tray 5, a U-shaped frame 26 is fixed on the outer wall of the U-shaped frame 4 located in the center of the assembly line main body 1, an electric control push rod 7 is fixed on the top of the U-shaped frame 26, and the telescopic end of the electric control push rod 7 is located above the through-hole of the gourd-shaped tray 5, a number of rubber strips 13 are evenly and equidistantly fixed at the bottom edge of the through-hole of the through-hole material receiving tray 12, and a centering device 8 is arranged below the electric control push rod 7. By setting the above-mentioned structure to install the cap and the battery cell, the problem of incorrect installation of the cap and the battery cell to be assembled due to the raised end of the cap not facing upward can be effectively avoided.

[0028] A plurality of L-shaped inclined plates 14 are evenly fixed on the circumference of the top eccentric part of the through-hole receiving tray 12. Two of the plurality of L-shaped inclined plates 14 form a group, and the top inclined surfaces of the two L-shaped inclined plates 14 are arranged opposite to each other. A ball rod 15 is fixed to the outer wall of one side of the telescopic end of the electric control push rod 7 close to the through-hole receiving tray 12. The end of the ball rod 15 away from the telescopic end of the electric control push rod 7 is arranged in a spherical shape. The top inclined surfaces of the two L-shaped inclined plates 14 are located on the spherical motion trajectory of the ball rod 15, and the two The spacing between the L-shaped inclined plates 14 is equal to the diameter of the ball rod 15. Through the arrangement of the above structure, the spherical shape of the ball rod 15 pushes the top inclined part of the L-shaped inclined plate 14 to drive the through-hole receiving plate 12 to rotate actively until the ball rod 15 moves between the two L-shaped inclined plates 14, thereby achieving a slight correction of the position of the through-hole receiving plate 12, thereby avoiding a slight deviation between the through hole of the through-hole receiving plate 12 and the through hole of the gourd-shaped plate 5, resulting in abnormal installation of the cap.

[0029] An arc-shaped plate 17 is fixed to the rear side of the telescopic end of the electric control push rod 7, an L-shaped frame 18 is fixed to the top of one side of the gourd-shaped plate 5, a hollow column 19 is penetrated and slidably installed on the top of the L-shaped frame 18, and a spring is provided between the hollow column 19 and the top of the L-shaped frame 18, a contact plate 20 is fixed to the outer wall below the hollow column 19, and the contact plate 20 is located on the movement track of the arc-shaped plate 17, a bearing plate 21 is fixed to the bottom of the hollow column 19, a rubber oblique scraper ring 22 is fixed to the outer wall of the bearing plate 21, a sliding column 24 is slidably installed inside the hollow column 19, a plurality of thin rods 23 are fixed to the outer wall below the sliding column 24, and one end of the thin rod 23 away from the sliding column 24 contacts the inner wall of the rubber oblique scraper ring 22, a friction plate 25 is fixed to the top of the sliding column 24, and a friction plate 26 is fixed to the top of the L-shaped frame 18. The outer wall of the rod 26 and the friction plate 25 are in contact with the outer wall of the friction rod 26. Through the arrangement of the above-mentioned structure, when the hollow column 19 moves downward, the rubber oblique scraper ring 22 will not contact the through-hole wall of the through-hole receiving plate 12 when it moves into the through-hole of the through-hole receiving plate 12, and the rubber oblique scraper ring 22 will not push the impurities at the through-hole wall of the through-hole receiving plate 12 to the through-hole receiving plate 12 and the gourd-shaped plate 5; when the hollow column 19 moves upward, the rubber oblique scraper ring 22 will contact the through-hole wall of the through-hole receiving plate 12, and the hollow column 19 will drive the rubber oblique scraper ring 22 to scrape off the impurities at the through-hole wall of the through-hole receiving plate 12 through the carrying plate 21, and the scraped impurities will fall on the surface of the carrying plate 21 for collection, thereby achieving the purpose of cleaning the impurities at the through-hole wall of the through-hole receiving plate 12.

[0030] The centering device 8 includes a long plate 81, a Y-shaped rod 82, a fixing ring 83, three U-shaped rods 84, and three L-shaped inclined claws 85. The long plate 81 is fixed to the side of the telescopic end of the electric control push rod 7 away from the through-hole receiving plate 12. The Y-shaped rod 82 penetrates and is slidably installed at the bottom of the long plate 81, and a spring is provided between the Y-shaped rod 82 and the bottom of the long plate 81. The fixing ring 83 is fixed to the bottom of the Y-shaped rod 82, and the fixing ring 83 and the guide tube 16 are concentrically arranged. The three L-shaped inclined claws 85 are evenly and equidistantly hinged on the outer wall of the guide tube 16. The three U-shaped rods 84 are respectively fixed on the outer walls of the three L-shaped inclined claws 85, and the fixing ring 83 is slidably installed inside the U-shaped rod 84. Through the arrangement of the above structure, the fixing ring 83 pushes the L-shaped inclined claws 85 to swing downward, and the three L-shaped inclined claws 85 clamp and position the battery cell below the guide tube 16, thereby ensuring that the battery cell is at the center of the circle below the guide tube 16, thereby avoiding the deviation of the position of the battery cell below the guide tube 16, and the cap cannot be correctly docked on the battery cell, resulting in an unstable connection between the cap and the battery cell.

[0031] The centering device 8 also includes six pressing plates 86, six folding capsules 87, three T-shaped one-way air outlet pipes 88, and six fixed plate one-way air inlet orifice plates 89. The six pressing plates 86 are evenly and equidistantly fixed on the inner wall of the fixed ring 83, and the six fixed plate one-way air inlet orifice plates 89 are evenly and equidistantly fixed on the lower outer wall of the guide tube 16. One end of the six folding capsules 87 is respectively fixed to the bottom of the six pressing plates 86, and the other end of the six folding capsules 87 is respectively fixed to the top of the six fixed plate one-way air inlet orifice plates 89. Two of the six folding capsules 87 are fixed to the bottom of the six pressing plates 86. As a group, three T-shaped one-way air outlet pipes 88 are respectively fixed between two adjacent folding bags 87, and the end of the T-shaped one-way air outlet pipe 88 away from the folding bag 87 passes through the outer wall of the guide tube 16, and the T-shaped one-way air outlet pipe 88 is inclined. The bottom of the one-way air inlet plate 89 is fixed with a one-way air inlet hole for one-way air intake of the folding bag 87. Through the arrangement of the above structure, the air in the folding bag 87 is sprayed toward the battery cell through the T-shaped one-way air outlet pipe 88, so that the air sprayed from the T-shaped one-way air outlet pipe 88 can blow off foreign matter adhered to the top surface of the battery cell.

[0032] When in use, the battery cells to be assembled are placed in the placement frame 3, and the conveyor belt group 2 is started. The conveyor belt group 2 will drive the battery cells in the placement frame 3 to move to the bottom of the guide tube 16, and the storage barrel 11 equipped with caps is clamped on the through-hole discharge tray 10. The raised ends of the caps installed in the storage barrel 11 are all set upward, and the caps stored in the storage barrel 11 will fall into the through holes of the through-hole discharge tray 10. The through-hole receiving tray 12 is driven by a motor to rotate. When the through hole of the through-hole receiving tray 12 rotates to the through hole position of the through-hole discharge tray 10, the through-hole The cap in the through hole of the material tray 10 will fall into the through hole of the through hole receiving tray 12, and the rubber strip 13 will receive the cap that falls into the through hole of the through hole receiving tray 12. When the cap in the through hole of the through hole receiving tray 12 rotates to the through hole of the gourd-shaped tray 5, the electric control push rod 7 is started, and the telescopic end of the electric control push rod 7 moves downward. The telescopic end of the electric control push rod 7 will first push the cap in the through hole of the through hole receiving tray 12 to pass over the rubber strip 13, and then the cap moves downward along the guide tube 16 until the telescopic end of the electric control push rod 7 pushes the cap onto the electric device to be assembled. The top of the core, at this time, the installed battery core can proceed to the next step of welding operation. At the same time, the above-mentioned installation method of the cap and the battery core can effectively avoid the problem of incorrect installation of the cap and the battery core to be assembled due to the raised end of the cap not facing upward. After the cap in a storage barrel 11 is assembled, the through-hole discharge tray 10 can be rotated to switch the storage barrel 11 equipped with the cap for use. The rotation of the through-hole discharge tray 10 here can be driven by manual or motor; there appears between the through-hole of the through-hole receiving tray 12 and the through-hole of the gourd-shaped tray 5. When the slight deviation is not completely overlapped, each time the telescopic end of the electric control push rod 7 moves downward, the telescopic end of the electric control push rod 7 will drive the ball rod 15 to move downward, and the spherical shape of the ball rod 15 pushes the top inclined part of the L-shaped inclined plate 14 to drive the through hole receiving tray 12 to rotate actively until the ball rod 15 moves between the two L-shaped inclined plates 14, thereby achieving a slight correction to the position of the through hole receiving tray 12, thereby avoiding slight deviations between the through holes of the through hole receiving tray 12 and the through holes of the gourd-shaped tray 5, resulting in abnormal installation of the cap.

[0033] During the use of the through-hole receiving tray 12, some impurities will inevitably adhere to the hole walls of the through-hole receiving tray 12. After the caps in the through-hole receiving tray 12 are pushed out, the through-hole receiving tray 12 without the caps will rotate to the position below the supporting tray 21. During each downward movement of the telescopic end of the electric control push rod 7, the telescopic end of the electric control push rod 7 will drive the arc plate 17 to move downward. When the arc plate 17 moves to the contact plate 20 position, the arc plate 17 will push the contact plate 20 to move downward. The contact plate 20 drives the supporting plate 21 and the rubber oblique scraper ring 22 to move downward through the hollow column 19. At the same time, the hollow column 1 The friction disc 25 is driven downward by the sliding column 24. Under the friction resistance between the friction disc 25 and the friction rod 26, the friction disc 25 drives the sliding column 24 to move upward along the inside of the hollow column 19 relative to the hollow column 19. At this time, when the hollow column 19 continues to move downward, the hollow column 19 drives the friction disc 25 and the friction rod 26 to slide and rub through the sliding column 24. When the friction disc 25 drives the hollow column 19 upward, the hollow column 19 drives the thin rod 23 to move upward. The thin rod 23 pulls the inner wall of the rubber oblique scraper ring 22 upward, so that the rubber oblique scraper ring 22 contracts inward. At this time, the rubber oblique scraper When the ring 22 moves into the through hole of the through hole receiving plate 12, it will not contact the through hole wall of the through hole receiving plate 12, and the rubber oblique scraper ring 22 will not push the impurities at the through hole wall of the through hole receiving plate 12 to the through hole receiving plate 12 and the gourd-shaped plate 5; when the arc plate 17 no longer pushes the contact plate 20 to move downward, the hollow column 19 will be reset by the corresponding spring, and the hollow column 19 drives the friction plate 25 to move upward through the sliding column 24. Under the friction force between the friction plate 25 and the friction rod 26, relative to the hollow column 19, the friction plate 25 will drive the sliding column 24 to move downward along the inside of the hollow column 19, and the hollow column 19 will drive the fine The rod 23 moves downward, and the thin rod 23 no longer pulls the inner wall of the rubber scraper ring 22 upward. The rubber scraper ring 22 is reset and contacts the wall of the through-hole of the through-hole receiving tray 12. As the hollow column 19 resets and moves upward, the hollow column 19 will drive the rubber scraper ring 22 through the supporting plate 21 to scrape off impurities on the wall of the through-hole of the through-hole receiving tray 12, thereby avoiding the existence of impurities on the wall of the through-hole of the through-hole receiving tray 12 and affecting the entry of the cap into the through-hole of the through-hole receiving tray 12. The scraped impurities will fall on the surface of the supporting plate 21 for collection, thereby achieving the purpose of cleaning the impurities on the wall of the through-hole of the through-hole receiving tray 12.

[0034] During each downward movement of the telescopic end of the electric control push rod 7, the telescopic end of the electric control push rod 7 will drive the long plate 81 to move downward, and the long plate 81 drives the Y-shaped rod 82 to move downward through the spring corresponding to the Y-shaped rod 82, and the Y-shaped rod 82 drives the fixing ring 83 to move downward, and the fixing ring 83 slides along the U-shaped rod 84, and the fixing ring 83 pushes the L-shaped inclined claws 85 to swing downward, and the three L-shaped inclined claws 85 clamp and position the battery cell under the guide tube 16, thereby ensuring that the battery cell is at the center of the circle under the guide tube 16, thereby avoiding the deviation of the position of the battery cell under the guide tube 16, and the cap cannot be correctly connected to the battery cell, resulting in an unstable connection between the cap and the battery cell; at the same time, when the fixing ring 83 moves downward, it will drive the pressing plate 86 Moving downward, the pressure plate 86 squeezes the folding capsule 87, and the air in the folding capsule 87 is sprayed toward the battery cell through the T-shaped one-way air outlet pipe 88, so that the air sprayed from the T-shaped one-way air outlet pipe 88 blows off the foreign matter adhered to the top surface of the battery cell, thereby avoiding the problem of the cap being unable to smoothly contact the top surface of the battery cell due to the foreign matter, causing unstable assembly. When the electric control push rod 7 is reset, the electric control push rod 7 drives the fixing ring 83 to move upward through the Y-shaped rod 82. At this time, the fixing ring 83 drives the L-shaped inclined claw 85 to reset and move upward through the U-shaped rod 84, and the fixing ring 83 stretches the folding capsule 87 through the pressure plate 86, and the folding capsule 87 takes in air through the one-way air inlet hole of the folding capsule 87, thereby achieving the purpose of replenishing the air in the folding capsule 87.

[0035] See also Figure 1 - Fig. 9 On the basis of the above embodiment, in another embodiment of the present invention, three strip-shaped openings are opened on the outer wall of the material guide tube 16, and a guiding device 9 is arranged inside the strip-shaped openings of the material guide tube 16.

[0036] The guiding device 9 includes a rotating rod 91, a rotating rod 92, and a rubber belt 93. The rotating rod 91 is rotatably installed on the inner wall above the strip-shaped opening of the guide tube 16, and the rotating rod 92 is rotatably installed on the inner wall below the strip-shaped opening of the guide tube 16. The rubber belt 93 is rotatably connected to the outside of the rotating rods 91 and 92. The side of the rubber belt 93 close to the center of the guide tube 16 protrudes two centimeters beyond the inner diameter of the guide tube 16, and the outer wall of the rubber belt 93 is a rough surface. Through the arrangement of the above structure, the rubber belt 93 can prevent direct contact between the guide tube 16 and the inner wall of the cap, avoiding scratches or damage caused by friction. At the same time, the rubber belt 93 can provide a certain degree of flexible support. The rubber belt 93 can position the cap in the guide tube 16. The rubber belt 93 improves the fault tolerance during the assembly process of the cap and the battery cell, and reduces the problems caused by inaccurate position between the cap and the battery cell.

[0037] When in use, during the process of the telescopic end cap of the electric control push rod 7 moving downward along the guide tube 16, the cap entering the guide tube 16 will contact the outer wall of the rubber belt 93, and then the electric control push rod 7 pushes the cap to move downward along the three rubber belts 93. During this process, the three rubber belts 93 will rotate between the corresponding rotating rods 1 91 and 2 92. The rubber belt 93 can prevent direct contact between the guide tube 16 and the inner wall of the cap, and avoid scratches or damage caused by friction. At the same time, the rubber belt 93 can provide a certain degree of flexible support. The rubber belt 93 can position the cap in the guide tube 16. The rubber belt 93 improves the fault tolerance during the assembly process of the cap and the battery cell, and reduces the problems caused by inaccurate position between the cap and the battery cell.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic assembly line for lithium battery cells, comprising an assembly line body (1), a conveyor belt group (2) being arranged inside the assembly line body (1), a plurality of placement frames (3) being fixed outside the conveyor belt of the conveyor belt group (2), characterized in that: Two U-shaped frames (4) are fixed on the top of the assembly line body (1), a gourd-shaped plate (5) is fixed between the tops of the two U-shaped frames (4), a through-hole material receiving plate (12) is rotatably mounted on the bottom of the inner wall of one side of the gourd-shaped plate (5), the through-hole material receiving plate (12) is driven by a motor, and the motor corresponding to the through-hole material receiving plate (12) is fixed on the bottom of the gourd-shaped plate (5), a through-hole matching the through-hole material receiving plate (12) is opened on the bottom of one side of the gourd-shaped plate (5), a through-hole material discharge plate (10) is rotatably mounted on the bottom of the inner wall of the other side of the gourd-shaped plate (5), and the through-hole material discharge plate (10) is located above the through-hole material receiving plate (12), and the A material storage barrel (11) is clamped on the top of the through-hole material discharge tray (10), a material guide tube (16) is embedded in the bottom of the U-shaped frame 1 (4) located at the center of the assembly line body (1), and the material guide tube (16) is located below the through-hole of the gourd-shaped tray (5), a U-shaped frame 2 (6) is fixed on the outer wall of the U-shaped frame 1 (4) located at the center of the assembly line body (1), an electric control push rod (7) is fixed on the top of the U-shaped frame 2 (6), and the telescopic end of the electric control push rod (7) is located above the through-hole of the gourd-shaped tray (5), a plurality of rubber strips (13) are evenly and equidistantly fixed at the bottom edge of the through-hole of the through-hole material receiving tray (12), and a centering device (8) is provided below the electric control push rod (7); The centering device (8) comprises a long plate (81), a Y-shaped rod (82), a fixing ring (83), three U-shaped rods (84), and three L-shaped inclined claws (85); the long plate (81) is fixed to a side of the telescopic end of the electric control push rod (7) away from the through-hole receiving plate (12); the Y-shaped rod (82) penetrates and is slidably mounted on the bottom of the long plate (81); a spring is provided between the Y-shaped rod (82) and the bottom of the long plate (81); the fixing ring (83) is fixed to the bottom of the Y-shaped rod (82); the fixing ring (83) and the material guide tube (16) are arranged concentrically; the three L-shaped inclined claws (85) are evenly and equidistantly hinged to the outer wall of the material guide tube (16); the three U-shaped rods (84) are respectively fixed to the outer walls of the three L-shaped inclined claws (85); and the fixing ring (83) is slidably mounted inside the U-shaped rod (84); The centering device (8) further comprises six pressing plates (86), six folding bags (87), three T-shaped one-way air outlet pipes (88), and six one-way air inlet orifice plates (89). The six pressing plates (86) are evenly and equidistantly fixed on the inner wall of the fixing ring (83), the six one-way air inlet orifice plates (89) are evenly and equidistantly fixed on the lower outer wall of the guide tube (16), one end of the six folding bags (87) is respectively fixed on the bottom of the six pressing plates (86), the other end of the six folding bags (87) is respectively fixed on the top of the six one-way air inlet orifice plates (89), two folding bags (87) in the six folding bags (87) form a group, and the three T-shaped one-way air outlet pipes (88) are respectively fixed between two adjacent folding bags (87).

2. The automatic assembly line for lithium battery cells according to claim 1, characterized in that: A plurality of L-shaped inclined plates (14) are evenly fixed on the circumference of the top eccentric part of the through-hole receiving tray (12), two of the plurality of L-shaped inclined plates (14) form a group, and the top inclined surfaces of the two L-shaped inclined plates (14) are arranged opposite to each other. A ball rod (15) is fixed on the outer wall of one side of the telescopic end of the electric control push rod (7) close to the through-hole receiving tray (12), and the end of the ball rod (15) away from the telescopic end of the electric control push rod (7) is arranged in a spherical shape. The top inclined surfaces of the two L-shaped inclined plates (14) are located on the spherical motion trajectory of the ball rod (15), and the spacing between the two L-shaped inclined plates (14) is equal to the diameter of the ball rod (15).

3. The automatic assembly line for lithium battery cells according to claim 2, characterized in that: An arc-shaped plate (17) is fixed to the rear side of the telescopic end of the electric control push rod (7); an L-shaped frame (18) is fixed to the top of one side of the gourd-shaped plate (5); a hollow column (19) is penetrated through the top of the L-shaped frame (18) and slidably installed; a spring is provided between the hollow column (19) and the top of the L-shaped frame (18); a contact plate (20) is fixed to the outer wall below the hollow column (19); the contact plate (20) is located on the movement track of the arc-shaped plate (17); a bearing plate (21) is fixed to the bottom of the hollow column (19); the bearing plate (21) is provided on the bottom of the hollow column (19); A rubber oblique scraper ring (22) is fixed on the outer wall of the carrier plate (21), a sliding column (24) is slidably mounted inside the hollow column (19), a plurality of thin rods (23) are fixed on the outer wall below the sliding column (24), one end of the thin rod (23) away from the sliding column (24) contacts the inner wall of the rubber oblique scraper ring (22), a friction plate (25) is fixed on the top of the sliding column (24), a friction rod (26) is fixed on the top of the L-shaped frame (18), and the outer wall of the friction plate (25) contacts the outer wall of the friction rod (26).

4. The automatic assembly line for lithium battery cells according to claim 1, characterized in that: One end of the T-shaped one-way air outlet pipe (88) away from the folding bag (87) penetrates the outer wall of the guide pipe (16), and the T-shaped one-way air outlet pipe (88) is arranged obliquely. A one-way air inlet hole for one-way air intake of the folding bag (87) is fixed at the bottom of the one-way air inlet hole plate (89).

5. The automatic assembly line for lithium battery cells according to claim 4, characterized in that: The outer wall of the material guide tube (16) is provided with three strip-shaped openings, and a guiding device (9) is arranged inside the strip-shaped opening of the material guide tube (16). The guiding device (9) comprises a rotating rod 1 (91), a rotating rod 2 (92), and a rubber belt (93). The rotating rod 1 (91) is rotatably mounted on the inner wall above the strip-shaped opening of the material guide tube (16), and the rotating rod 2 (92) is rotatably mounted on the inner wall below the strip-shaped opening of the material guide tube (16). The rubber belt (93) is rotatably connected to the outside of the rotating rod 1 (91) and the rotating rod 2 (92).

6. The automatic assembly line for lithium battery cells according to claim 5, characterized in that: The side of the rubber belt (93) close to the center of the material guide tube (16) protrudes two centimeters beyond the inner diameter of the material guide tube (16), and the outer wall of the rubber belt (93) is a rough surface.

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