A lithium battery spot welding production line

Abstract

The present application relates to a kind of lithium battery spot welding production line, including rack, conveying belt, spot welder and detector, be equipped with feeding mechanism on rack, transfer mechanism is equipped with under feeding mechanism, transfer mechanism and spot welder are equipped with arrangement mechanism between, feeding mechanism includes battery stock bin a, battery stock bin b and blanking pipe, battery stock bin a and battery stock bin b are all equipped with blanking assembly and screening component, blanking assembly is transmitted to transfer mechanism by battery stock bin a and battery stock bin b inside battery downwards and through screening component alternately output, transfer mechanism includes slewing component, clamping assembly and bearing assembly, clamping assembly is driven by slewing component and battery is transferred to bearing assembly, arrangement mechanism includes nickel sheet stock bin, opening and closing component and pressing assembly, opening and closing component controls nickel sheet in nickel sheet stock bin fall into bearing assembly while driving pressing assembly to bear assembly is folded;The present application solves the problems of prior art, such as high labor cost, poor processing continuity, low production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium battery spot welding equipment, and particularly relates to a lithium battery spot welding production line. BACKGROUND

[0002] In the production process of lithium batteries, according to production requirements, a plurality of lithium batteries need to be arranged and then the positive and negative electrodes are spot welded and then detected. The prior art usually arranges the battery combination manually and then spot welds manually. However, this method is not only low in efficiency, but also cannot guarantee the processing quality and is high in labor cost. In order to improve the efficiency and reduce the labor intensity, production enterprises gradually use automatic spot welding machines for spot welding. However, manual arrangement and combination of the batteries are still needed in advance, and the batteries need to be arranged alternately according to the positive and negative electrodes and nickel sheets need to be installed. Manual combination is slow and prone to errors, so the overall production efficiency is still limited.

[0003] Moreover, after the spot welding is completed, the lithium batteries that have been spot welded need to be manually removed and replaced with lithium batteries to be processed by workers. The lithium batteries that have been spot welded also need to be manually transferred to a detection station for detection. Each station operates independently, and the production continuity is poor and the production efficiency is not high. SUMMARY

[0004] The present application aims at the deficiencies of the prior art and provides a lithium battery spot welding production line. The lithium battery spot welding production line comprises a rack, a conveying belt arranged below the rack, a spot welding machine and a detector arranged in sequence on a conveying path of the conveying belt, a feeding mechanism arranged on the top of the rack, a transfer mechanism arranged below the feeding mechanism, a sorting mechanism arranged between the transfer mechanism and the spot welding machine, a battery magazine a and a battery magazine b and a blanking pipe arranged in the feeding mechanism, blanking assemblies and screening assemblies arranged on the battery magazine a and the battery magazine b, a plurality of clamping assemblies driven by a rotating assembly arranged in the transfer mechanism, a plurality of bearing assemblies driven by the conveying belt, a nickel sheet magazine, an opening and closing assembly and a pressing assembly arranged in the sorting mechanism. The present application solves the problems of the prior art, such as high labor cost and low efficiency caused by manual arrangement and combination of the batteries, poor processing continuity and low production efficiency in the production process.

[0005] The technical solutions of the present application are as follows:

[0006] A lithium battery spot welding production line includes a frame and a conveyor belt disposed below the frame. A spot welding machine and a testing instrument are sequentially arranged along the conveyor belt's transport path. A feeding mechanism is disposed at the top of the frame, and a transfer mechanism is disposed below the feeding mechanism. A sorting mechanism is disposed between the transfer mechanism and the spot welding machine. The feeding mechanism includes a battery bin a and a battery bin b, and a discharge pipe fixedly disposed at the bottom of the battery bins a and b. Both battery bins a and b are provided with a discharge assembly and a screening assembly. The discharge assembly is used to discharge the batteries... Batteries in hopper a and battery hopper b are transferred downwards and alternately output to the transfer mechanism via a screening component. The transfer mechanism includes a rotary component, several clamping components driven by the rotary component, and several carrying components driven by a conveyor belt. The clamping components transfer the batteries to the carrying components below under the drive of the rotary component. The sorting mechanism includes a nickel sheet hopper and an opening and closing component and a pressing component located below the nickel sheet hopper. The opening and closing component controls the nickel sheets in the nickel sheet hopper to fall into the carrying components while driving the pressing component to close the carrying components.

[0007] As a preferred embodiment, the discharge pipe has discharge channels a and b that are respectively connected to battery material boxes a and b. The top of the discharge pipe has a through groove, the front of the through groove has a window, a rotating plate a is rotatably installed in the through groove, and a guide plate is fixedly installed on one side of the through groove.

[0008] As a preferred embodiment, the feeding assembly includes a servo motor a fixedly mounted on battery bin a and battery bin b, and a rotating roller driven by the servo motor a.

[0009] As a preferred embodiment, the screening assembly includes a vision sensor and a servo motor b fixedly mounted on the discharge pipe, and a cylinder a fixedly mounted on one side of the through trough. A support plate is fixedly connected to the front end of the cylinder a, and a rotating plate b is fixedly connected to the front end of the servo motor b. The rotating plate b is rotatably mounted inside the discharge pipe.

[0010] As a preferred embodiment, the rotary assembly includes a chain guide rail fixedly mounted below the feed tube, a servo motor c fixedly mounted on the chain guide rail, and a rotary chain driven by the servo motor c. A cylinder b is also provided on the front side of the chain guide rail, and a counter is provided on one side of the cylinder b.

[0011] As a kind of preferred, the clamping assembly includes the mounting seat fixedly arranged on the rotary chain and the support rod slidingly arranged in the mounting seat, the rack a is fixedly arranged on the support rod, the arc-shaped tray is fixedly connected to the top end of the support rod, the extrusion block is slidingly arranged in the mounting seat, the extrusion block is connected with the mounting seat by spring a, the gear a is rotatably arranged on the mounting seat, the buckle is fixedly connected to the gear a, and the gear a is engaged with the rack a.

[0012] As a kind of preferred, the bearing assembly includes the clamp body and the side plate slidingly arranged on both sides of the clamp body, the clamp body bottom is provided with a insertion hole, the clamp body top is fixedly connected with the protruding strip on both sides, the side plate bottom is provided with a bolt corresponding to the insertion hole, the side plate top is provided with a sliding slot corresponding to the protruding strip, a plurality of holes are equidistantly arranged on the side plate, and the insulating sheet is fixedly connected in the clamp body.

[0013] As a kind of preferred, the nickel sheet magazine is slidingly arranged with a push plate, the push plate is connected with the nickel sheet magazine by spring b, and the nickel sheet magazine bottom surface is provided with a blanking port.

[0014] As a kind of preferred, the opening and closing assembly includes the electric valve fixedly arranged below the nickel sheet magazine and the baffle driven by the electric valve, and the baffle bottom is fixedly connected with the rack b.

[0015] As another kind of preferred, the pressing assembly includes the connecting arm fixedly arranged below the electric valve and the sliding sleeve, the gear b is rotatably arranged on the front end of the connecting arm, the sliding sleeve is slidingly arranged with the sliding rod, the extrusion plate is fixedly connected to the front end of the sliding rod, the rack c is fixedly connected to the front end of the extrusion plate, and the rack b and the rack c are engaged with the gear b.

[0016] The beneficial effects of the present application are:

[0017] 1. The present application is provided with a screening assembly, the battery is sequentially output in the battery magazine a and the battery magazine b through the screening assembly and the blanking assembly, the battery that does not meet the output standard is pushed out by the cylinder a, the battery that meets the standard is sequentially transferred to the clamp body through the transfer mechanism according to the positive and negative electrode order, the automatic and orderly output of the battery is realized, the speed is fast and the error is not easy to occur, the problem that the existing technology still needs manual arrangement and combination of the battery and the slow feeding speed are solved, and the problem that the positive and negative electrodes are arranged incorrectly under the long time work of manual work is avoided.

[0018] 2. This invention includes a clamping assembly. The clamping assembly, in conjunction with a rotating assembly, enables the output batteries to be arranged in an orderly manner according to their positive and negative terminals. The output batteries are received by an arc-shaped tray within the clamping assembly. The weight of the batteries causes the support rod to descend, simultaneously rotating gear a, which clamps and secures the batteries using a latch. A cylinder b pushes the end of the support rod, resetting the latch and releasing the clamp, allowing the batteries to fall into the clamp body. This allows the batteries to be automatically and accurately arranged in an orderly manner according to their positive and negative terminals. The arrangement and combination speed is fast, eliminating the need for manual assembly, reducing the labor intensity of workers, and increasing the degree of automation. This solves the problem of existing technologies that still require manual battery arrangement and combination, which is not only inefficient but also inefficient and costly.

[0019] 3. The present invention is equipped with a pressing component. The pressing component and the opening and closing component work together to press the clamp body from both sides while installing the nickel sheet into the clamp body, so that the clamp body and the side plate automatically close to fix the battery, which facilitates subsequent spot welding and inspection. It eliminates the tedious steps of manually installing the nickel sheet into the battery clamp and then adjusting the battery clamp to close it. The processing is continuous and efficient.

[0020] In summary, this invention has advantages such as high production efficiency, fast and accurate battery arrangement and combination, good processing continuity, low manual labor intensity, and good linkage effect between components, making it suitable for the field of lithium battery spot welding equipment technology. Attached Figure Description

[0021] The invention will be further described below with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the lithium battery spot welding production line.

[0023] Figure 2 for Figure 1 Enlarged view of point A;

[0024] Figure 3 This is a schematic diagram showing the location and structure of the feeding assembly and the screening assembly.

[0025] Figure 4 for Figure 3 Enlarged view of point B;

[0026] Figure 5 A schematic diagram showing the state in which the rotating component drives the clamping component to transfer the battery to the carrying component;

[0027] Figure 6 for Figure 5 Enlarged view of point C;

[0028] Figure 7 for Figure 5 Enlarged diagram of point D;

[0029] Figure 8 State diagram for driving the pressing assembly of the opening and closing assembly to move reversely;

[0030] Figure 9 Explosive structure diagram of the bearing assembly. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely explained below with reference to the drawings.

[0032] Embodiment one

[0033] As Figures 1 to 9As shown, a lithium battery spot welding production line includes a rack 1 and a conveying belt 2 arranged below the rack 1, a spot welding machine 3 and a detector 4 are sequentially arranged on the conveying path of the conveying belt 2, the top of the rack 1 is provided with a feeding mechanism 5, the feeding mechanism 5 is provided below with a transfer mechanism 6, the transfer mechanism 6 is provided between the spot welding machine 3 with an arrangement mechanism 7, the feeding mechanism 5 includes a battery bin a 51 and a battery bin b 52 and a blanking pipe 53 fixedly arranged at the bottom of the battery bin a 51 and the battery bin b 52, the battery bin a 51 and the battery bin b 52 are both provided with blanking assembly 54 and screening assembly 55, blanking assembly 54 is used for downward transmission of battery 8 in battery bin a 51 and battery bin b 52 and alternating output to transfer mechanism 6 through screening assembly 55, transfer mechanism 6 includes rotary assembly 61, a plurality of clamping assemblies 62 driven by rotary assembly 61 and a plurality of bearing assemblies 63 driven by conveying belt 2, clamping assembly 62 drives battery 8 to transfer to the bearing assembly 63 below under the action of rotary assembly 61, arrangement mechanism 7 includes a nickel sheet bin 71 and an opening and closing assembly 72 and a pressing assembly 73 arranged below the nickel sheet bin 71, the opening and closing assembly 72 is used for controlling the nickel sheet 9 in the nickel sheet bin 71 to fall into the bearing assembly 63 while driving the pressing assembly 73 to fold the bearing assembly 63. First, the battery 8 with positive electrode forward is loaded in the battery bin a 51, the battery 8 with negative electrode forward is loaded in the battery bin b 52, the clamp body 630 is placed on the conveying belt 2, then the power supply of each station is turned on, the rotating roller 542 is driven to rotate by the servo motor a 541, the battery 8 in the battery bin a 51 and the battery bin b 52 falls on the supporting plate 554, the visual sensor 551 is electrically connected with the servo motor a 541, the servo motor b 552 and the air cylinder a 553, the visual sensor 551 on one side of the battery bin a 51 first detects the battery 8, if it is not positive forward, it sends a signal to the air cylinder a 553 on one side of the battery bin a 51 to push the battery 8 out of the through slot 533 for recycling through the guide plate 536, if the detection is qualified, it sends a signal to the servo motor b 552 and the air cylinder a 553, at the same time, the servo motor a 541 is paused, the servo motor b 552 drives the rotating plate b 555 to rotate counterclockwise to remove the shielding of the blanking passage a 531, the air cylinder a 553 retracts the supporting plate 554 backward to make the battery 8 fall into the arc-shaped tray 623 below through the blanking passage a 531, then the supporting rod 621 is lowered by the weight of the battery 8 itself, at the same time, the gear a 626 is counterclockwise rotated by the cooperation of the rack a 622 and the gear a 626 to clamp the battery 8 through the hasp 627, at the same time, the clamping assembly 62 bearing the battery 8 is clockwise rotated by the rotary chain 612, and the next clamping assembly 62 is rotated below the blanking pipe 53, in this way, the visual sensor 551 on one side of the battery bin b 52 detects the battery 8 output from the battery bin b 52 in the same way and makes the negative electrode forward qualified battery 8 fall into the clamping assembly 62,When the clamping assembly 62 is rotated to the position of the cylinder b 613 by the rotary chain 612, the cylinder b 613 pushes the tail end of the supporting rod 621 to make the supporting rod 621 disengage from the limiting and upward resetting of the extrusion block 624, and at the same time drives the gear a 626 to rotate clockwise to release the clamping of the battery 8 by the buckle 627, so that the battery 8 falls into the clamp body 630 on the conveying belt 2 below. The inside of the clamp body 630 is divided into a specified number of compartments by the insulating sheet 637, and the number of batteries 8 in the clamp body 630 is counted by the counter 614 on one side of the cylinder b 613. The counter 614 is electrically connected with the conveying belt 2, and when the number of batteries 8 in the first compartment of the clamp body 630 reaches the set number, the counter 614 sends a signal to the conveying belt 2 to make the conveying belt 2 drive the clamp body 630 to move forward, so that the next compartment in the clamp body 630 is below the cylinder b 613 for receiving the subsequent battery 8. When the number of batteries 8 in each compartment of the clamp body 630 meets the standard, the conveying belt 2 drives the clamp body 630 to be transmitted below the nickel sheet tank 71. The movable valve 720 drives the baffle 721 to move backward to remove the shielding of the dropping port 712, so that the nickel sheet 9 falls into the clamp body 630. At the same time, the movable valve 720 drives the baffle 721 to move backward, and the rack b 722, the gear b 732 and the rack c 735 cooperate to make the slide rod 733 and the baffle 721 move in opposite directions. The side plate 631 is folded with the clamp body 630 by the extrusion plate 734 at the front end of the slide rod 733. Then the conveying belt 2 drives the clamp body 630 to move to the spot welding machine 3, and the spot welding machine 3 spot welds the battery 8. When the spot welding is completed, the conveying belt 2 drives the clamp body 630 to move to the detector 4, and the detector 4 detects the spot welding result of the battery 8. Finally, the staff takes down the detected battery 8, and the processing process is circulated in sequence. The problems of low efficiency, high labor cost, slow feeding speed, fatigue after long time work, positive and negative electrode arrangement error and poor processing continuity in the prior art are solved. The spot welding machine 3 is a full-automatic double-sided spot welding machine, which can spot weld the positive and negative surfaces of the battery pack from both sides at the same time, and the detection efficiency is greatly improved. The full-automatic double-sided spot welding machine and the double-lens horizontal CCD detector are mature technologies, and will not be described in detail here.

[0034] As Figure 1 , Figure 3 and Figure 4As shown, the blanking pipe 53 is provided with blanking passages a 531 and blanking passages b 532 respectively connected with the battery magazine a 51 and the battery magazine b 52, and the top of the blanking pipe 53 is provided with a through slot 533, the front of the through slot 533 is provided with a window 534, the through slot 533 is rotatably provided with a rotating plate a 535, and one side of the through slot 533 is fixedly provided with a guide plate 536. The battery 8 in the battery magazine a 51 and the battery magazine b 52 is dropped onto the supporting plate 554 by rotating the rotating roller 542 driven by the servo motor a 541, the visual sensor 551 on one side of the battery magazine a 51 first detects the battery 8, if the positive electrode is not forward, a signal is sent to the cylinder a 553 on one side of the battery magazine a 51 to push the battery 8 out of the through slot 533 through the guide plate 536 for recycling, if the detection is qualified, a signal is sent to the servo motor b 552 and the cylinder a 553, the servo motor b 552 drives the rotating plate b 555 to rotate counterclockwise to remove the shielding of the blanking passage a 531, the cylinder a 553 retracts the supporting plate 554 backward to make the battery 8 fall into the arc-shaped tray 623 below through the blanking passage a 531, the visual sensor 551 on one side of the battery magazine b 52 detects the battery 8 output from the battery magazine b 52 in the same way and makes the qualified battery 8 with the negative electrode facing forward fall into the clamping assembly 62, the material at the window 534 adopts glass, so that the visual sensor 551 can detect the battery 8 through the window 534, so that the output battery 8 is accurate, and the rotating plate a 535 is hinged in the through slot 533, which blocks one side of the battery 8, and when the cylinder a 553 pushes, it can be turned over to make the battery 8 be pushed out.

[0035] As shown in Figure 1 and Figure 3 The blanking assembly 54 includes a servo motor a 541 fixedly arranged on the battery magazine a 51 and the battery magazine b 52, and a rotating roller 542 driven by the servo motor a 541. The battery 8 in the battery magazine a 51 and the battery magazine b 52 is dropped onto the supporting plate 554 by rotating the rotating roller 542 driven by the servo motor a 541, and the battery 8 in the battery magazine a 51 and the battery magazine b 52 is realized orderly output by the rotating roller 542, avoiding the battery 8 from crowding to block the blanking pipe 53.

[0036] As shown in Figure 1 , Figure 3 and Figure 4As shown, the screening assembly 55 includes a visual sensor 551 and a servo motor b 552 fixedly arranged on the blanking pipe 53, and a pneumatic cylinder a 553 fixedly arranged on one side of the through slot 533, and the front end of the pneumatic cylinder a 553 is fixedly connected with a supporting plate 554, and the front end of the servo motor b 552 is fixedly connected with a rotating plate b 555, and the rotating plate b 555 is rotatably arranged in the blanking pipe 53. The battery boxes a 51 and b 52 are rotated by the servo motor a 541 to drive the rotating roller 542, so that the batteries 8 in the battery boxes a 51 and b 52 fall onto the supporting plate 554. The visual sensor 551 is electrically connected with the servo motor a 541, the servo motor b 552 and the pneumatic cylinder a 553. The visual sensor 551 on one side of the battery box a 51 first detects the batteries 8. If the positive electrode is not forward, a signal is sent to the pneumatic cylinder a 553 on one side of the battery box a 51 to push the batteries 8 out of the through slot 533 through the guide plate 536 for recycling. If the detection is qualified, a signal is sent to the servo motor b 552 and the pneumatic cylinder a 553, and the servo motor a 541 is paused at the same time. The servo motor b 552 drives the rotating plate b 555 to rotate counterclockwise to remove the shielding of the blanking passage a 531. The pneumatic cylinder a 553 retracts the supporting plate 554 backward to make the batteries 8 fall into the arc-shaped tray 623 below through the blanking passage a 531. Then, the visual sensor 551 on one side of the battery box b 52 detects the batteries 8 output from the battery box b 52 in the same way. After the detection is qualified, the servo motor a 541 is paused. The servo motor b 552 drives the rotating plate b 555 to rotate clockwise to remove the shielding of the blanking passage b 532. The batteries 8 with the positive electrode forward fall into the clamping assembly 62. The process is repeated in sequence to realize the orderly output of the batteries in an automatic manner. The speed is fast and the error is small. The problem of slow feeding speed caused by manual arrangement and combination of the batteries in the prior art is solved. The problem of error caused by fatigue of the workers after long time work is avoided.

[0037] As shown in Figure 1 , Figure 5 and Figure 7 , the rotating assembly 61 includes a chain guide rail 610 fixedly arranged below the blanking pipe 53, a servo motor c 611 fixedly arranged on the chain guide rail 610, and a rotating chain 612 driven by the servo motor c 611. The front surface of the chain guide rail 610 is also provided with a pneumatic cylinder b 613, and the pneumatic cylinder b 613 is provided with a counter 614 on one side. The rotating chain 612 is driven by the servo motor c 611 to rotate clockwise. The rotating chain 612 drives the clamping assembly 62 arranged thereon to rotate synchronously. When the clamping assembly 62 carrying the batteries 8 rotates to below the pneumatic cylinder b 613, the batteries 8 fall into the clamp body 630 below through the pneumatic cylinder b 613. The pneumatic cylinder b 613 always maintains a stable extension and retraction at a certain frequency, so that the feeding of the batteries 8 is orderly and fast.

[0038] As shown in Figure 6And Figure 7 As shown, the clamping assembly 62 includes a mounting seat 620 fixedly arranged on the rotary chain 612 and a support rod 621 slidably arranged in the mounting seat 620, the support rod 621 is fixedly provided with a rack a 622, the top end of the support rod 621 is fixedly connected with an arc-shaped tray 623, the inside of the mounting seat 620 is slidably provided with an extrusion block 624, the extrusion block 624 is connected with the mounting seat 620 through a spring a 625, the mounting seat 620 is rotatably provided with a gear a 626, the gear a 626 is fixedly connected with a buckle 627, and the gear a 626 is engaged with the rack a 622. The support rod 621 is lowered by the weight of the battery 8 itself, and the gear a 626 is counterclockwise rotated by cooperating with the rack a 622, and the battery 8 is clamped by the buckle 627, the support rod 621 passes through the extrusion block 624, the extrusion block 624 is reset by the spring a 625 to clamp and limit the tail end of the support rod 621, at the same time, the rotary chain 612 drives the clamping assembly 62 carrying the battery 8 to rotate clockwise, and the next clamping assembly 62 is rotated to below the blanking pipe 53, when the rotary chain 612 drives the clamping assembly 62 to rotate to the cylinder b 613, the tail end of the support rod 621 is pushed by the cylinder b 613 to make the support rod 621 disengage from the extrusion block 624, limit and rise reset, at the same time drive the gear a 626 to rotate clockwise to release the clamping of the battery 8 by the buckle 627, so that the battery 8 falls into the clamp body 630 on the conveyor belt 2 below, so that the battery can be automatically and orderly arranged according to the positive and negative electrodes, the arrangement and combination speed is fast, manual combination is not needed, the labor intensity of workers is reduced, the automation degree is higher, and the problems that the battery needs to be manually arranged and combined in the prior art, which is not only low in efficiency and high in labor cost, are solved.

[0039] As Figure 9As shown, the bearing assembly 63 includes a clamp body 630 and a side plate 631 slidingly arranged on both sides of the clamp body 630, the bottom of the clamp body 630 is provided with a insertion hole 632, the top of the clamp body 630 is fixedly connected with a convex strip 633, the bottom of the side plate 631 is provided with a bolt 634 corresponding to the insertion hole 632, the top of the side plate 631 is provided with a sliding groove 635 corresponding to the convex strip 633, a plurality of holes 636 are equidistantly arranged on the side plate 631, and an insulating sheet 637 is fixedly connected in the clamp body 630. In the initial state, the side plate 631 is not in close contact with the clamp body 630, and a gap is left between the clamp body 630 and the side plate 631, so that the battery 8 and the nickel sheet 9 can fall in, and after the nickel sheet 9 is installed in the clamp body 630, the side plate 631 is extruded and pushed by the extrusion plate 734, so that the side plate 631 moves along the convex strip 633 to the clamp body 630 through the sliding groove 635, and finally the side plate 631 is in close contact with the clamp body 630 to fold, the bolt 634 is completely inserted into the insertion hole 632, the firm connection is realized, the battery 8 is fixedly clamped, the holes 636 are arranged, the battery 8 in the clamp body 630 is conveniently spot-welded by the subsequent spot-welding machine 3, and the insulating sheet 637 prevents interference between the batteries 8.

[0040] As shown in Figure 8 , the bottom surface of the nickel sheet tank 71 is provided with a blanking port 712. The nickel sheet 9 in the nickel sheet tank 71 falls into the clamp body 630 through the blanking port 712, and the blanking port 712 is arranged at a position matched with both sides of the clamp body 630, so that the nickel sheet 9 can accurately fall into the clamp body 630.

[0041] As shown in Figure 8 , the opening and closing assembly 72 includes an electric valve 720 fixedly arranged below the nickel sheet tank 71 and a baffle 721 driven by the electric valve 720, and the bottom of the baffle 721 is fixedly connected with a rack b 722. The clamp body 630 is conveyed to below the nickel sheet tank 71 by the conveying belt 2, the baffle 721 is moved backward to remove the shielding of the blanking port 712 after the electric valve 720 drives the baffle 721, so that the nickel sheet 9 falls into the clamp body 630, the baffle 721 is moved backward at the same time by the electric valve 720, the gear b 732 is driven to rotate by the rack b 722, the rack c 735 is driven to move by the gear b 732, the slide rod 733 and the baffle 721 are moved in opposite directions, the side plate 631 and the clamp body 630 are folded by the extrusion plate 734 at the front end of the slide rod 733, the nickel sheet 9 is installed into the clamp body 630, the clamp body 630 is pressed from both sides at the same time, the clamp body 630 and the side plate 631 are automatically folded, the battery 8 is fixed, the subsequent spot-welding and detection are facilitated, manual installation of the nickel sheet 9 into the battery clamp 630 is not required, the battery clamp is adjusted to fold, the cumbersome steps are avoided, and the processing process is continuous and efficient.

[0042] As shown in Figure 8As shown, the pressing assembly 73 includes a connecting arm 730 fixedly arranged below the electric valve 720, and a sliding sleeve 731, the front end of the connecting arm 730 is rotationally arranged with a gear b 732, the sliding sleeve 731 is slidably arranged with a sliding rod 733, the front end of the sliding rod 733 is fixedly connected with a pressing plate 734, the front end of the pressing plate 734 is fixedly connected with a rack c 735, the rack b 722 and the rack c 735 are all engaged with the gear b 732. The conveying belt 2 drives the clamp body 630 to be transmitted below the nickel sheet tank 71, the electric valve 720 drives the baffle 721 to move backward to remove the shielding of the dropping port 712 so that the nickel sheet 9 falls into the clamp body 630, the electric valve 720 drives the baffle 721 to move backward at the same time, the rack b 722 drives the gear b 732 to rotate, at the same time, the gear b 732 drives the rack c 735 to move so that the sliding rod 733 and the baffle 721 move in opposite directions, the pressing plate 734 at the front end of the sliding rod 733 folds the side plate 631 and the clamp body 630, realizes the installation of the nickel sheet 9 into the clamp body 630 at the same time, and presses the clamp body 630 from both sides to make the clamp body 630 and the side plate 631 automatically fold to fix the battery 8, which is convenient for subsequent spot welding and detection, and does not need manual installation of the nickel sheet 9 into the battery clamp and then adjustment of the battery clamp to make it fold, so that the cumbersome steps are eliminated, and the processing process is continuous and efficient.

[0043] Embodiment two

[0044] As Figure 2 shown, wherein the same or corresponding parts as in embodiment one adopt the corresponding reference signs of embodiment one, for the sake of simplicity, only the difference points with embodiment one are described below; the difference between this embodiment two and embodiment one is that the nickel sheet tank 71 is slidably arranged with a push plate 710, and the push plate 710 is connected with the nickel sheet tank 71 through a spring b 711. By arranging the push plate 710, when the nickel sheet 9 in the nickel sheet tank 71 falls down, the push plate 710 pushes the remaining nickel sheet 9 to the dropping port 712 direction under the action of the spring b 711, so that the next group of nickel sheet 9 is at the position of the dropping port 712, when the electric valve 720 drives the baffle 721 to remove the shielding of the dropping port 712, the nickel sheet 9 at the dropping port 712 can quickly and accurately fall into the clamp body 630.

[0045] In the description of the present application, it should be understood that the terms "front and back", "left and right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or parts referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the invention.

[0046] Of course in the technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0047] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements that can be easily thought of by those skilled in the art under the technical hints of the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A lithium battery spot welding production line, comprising a frame (1) and a conveyor belt (2) disposed below the frame (1), wherein a spot welding machine (3) and a detector (4) are sequentially arranged on the conveyor belt (2) along its transmission path, characterized in that, A feeding mechanism (5) is provided on the top of the frame (1), and a transfer mechanism (6) is provided below the feeding mechanism (5). A sorting mechanism (7) is provided between the transfer mechanism (6) and the spot welding machine (3). The feeding mechanism (5) includes a battery box a (51) and a battery box b (52) and a dropping pipe (53) fixedly installed at the bottom of the battery box a (51) and the battery box b (52). A dropping component (54) and a screening component (55) are provided on both the battery box a (51) and the battery box b (52). The dropping component (54) is used to transfer the batteries (8) in the battery box a (51) and the battery box b (52) downwards and output them alternately through the screening component (55). The transfer mechanism (6) includes a rotary assembly (61), a plurality of clamping assemblies (62) driven by the rotary assembly (61), and a plurality of carrying assemblies (63) driven by the conveyor belt (2). The clamping assemblies (62) transfer the battery (8) to the carrying assemblies (63) below under the drive of the rotary assembly (61). The sorting mechanism (7) includes a nickel sheet bin (71) and an opening and closing assembly (72) and a pressing assembly (73) arranged below the nickel sheet bin (71). The opening and closing assembly (72) is used to control the nickel sheet (9) in the nickel sheet bin (71) to fall into the carrying assemblies (63) while driving the pressing assembly (73) to close the carrying assemblies (63). The bearing assembly (63) includes a clamp body (630) and side plates (631) slidably disposed on both sides of the clamp body (630). The clamp body (630) has an insertion hole (632) at the bottom and protrusions (633) fixedly connected to the top two sides of the clamp body (630). The side plates (631) have pins (634) at the bottom corresponding to the insertion hole (632) and sliding grooves (635) at the top corresponding to the protrusions (633). The side plates (631) have a plurality of openings (636) equidistantly arranged on the side plates (631). An insulating sheet (637) is fixedly connected inside the clamp body (630). The nickel sheet hopper (71) is slidably provided with a push plate (710), which is connected to the nickel sheet hopper (71) by a spring b (711). The bottom surface of the nickel sheet hopper (71) is provided with a discharge port (712). The opening and closing assembly (72) includes an electric valve (720) fixedly installed below the nickel sheet box (71) and a baffle (721) driven by the electric valve (720). A rack b (722) is fixedly connected to the bottom of the baffle (721). The pressing assembly (73) includes a connecting arm (730) and a sliding sleeve (731) fixedly disposed below the electric valve (720). A gear b (732) is rotatably disposed at the front end of the connecting arm (730). A sliding rod (733) is slidably disposed inside the sliding sleeve (731). A pressing plate (734) is fixedly connected to the front end of the sliding rod (733). A rack c (735) is fixedly connected to the front end of the pressing plate (734). Both the rack b (722) and the rack c (735) mesh with the gear b (732).

2. The lithium battery spot welding production line according to claim 1, characterized in that, The discharge pipe (53) has discharge channels a (531) and discharge channels b (532) that are respectively connected to battery box a (51) and battery box b (52). The top of the discharge pipe (53) has a through groove (533), the front of the through groove (533) has a window (534), a rotating plate a (535) is rotatably installed in the through groove (533), and a guide plate (536) is fixedly installed on one side of the through groove (533).

3. The lithium battery spot welding production line according to claim 1, characterized in that, The feeding assembly (54) includes a servo motor a (541) fixedly mounted on battery bin a (51) and battery bin b (52) and a rotating roller (542) driven by the servo motor a (541).

4. A lithium battery spot welding production line according to claim 2, characterized in that, The screening assembly (55) includes a vision sensor (551) and a servo motor b (552) fixedly mounted on the discharge pipe (53) and a cylinder a (553) fixedly mounted on one side of the through groove (533). The cylinder a (553) has a support plate (554) fixedly connected to its front end, and the servo motor b (552) has a rotating plate b (555) fixedly connected to its front end. The rotating plate b (555) is rotatably mounted inside the discharge pipe (53).

5. A lithium battery spot welding production line according to claim 2, characterized in that, The rotary assembly (61) includes a chain guide rail (610) fixedly installed below the feed pipe (53), a servo motor c (611) fixedly installed on the chain guide rail (610), and a rotary chain (612) driven by the servo motor c (611). A cylinder b (613) is also provided on the front of the chain guide rail (610), and a counter (614) is provided on one side of the cylinder b (613).

6. A lithium battery spot welding production line according to claim 5, characterized in that, The clamping assembly (62) includes a mounting base (620) fixedly mounted on a rotating chain (612) and a support rod (621) slidably mounted inside the mounting base (620). A rack a (622) is fixedly mounted on the support rod (621), and an arc-shaped tray (623) is fixedly connected to the top of the support rod (621). A pressing block (624) is slidably mounted inside the mounting base (620), and the pressing block (624) is connected to the mounting base (620) via a spring a (625). A gear a (626) is rotatably mounted on the mounting base (620), and a buckle (627) is fixedly connected to the gear a (626). The gear a (626) meshes with the rack a (622).

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