A battery cell string welding machine

Abstract

The present invention belongs to the technical field of battery cell string welding, specifically a battery cell string welding machine, comprising a casing, an inner wall of the casing is fixedly installed with a conveyor belt, the top surface of the conveyor belt is laid with battery cells, and an inner wall on one side of the casing is provided with a feed port; a sheet pushing arm and a sheet blocking arm are driven by a motor to move relatively inward, and the sheet pushing arm pushes one side of the battery cell to move toward the sheet blocking arm, and the battery cell will move upward on the sheet blocking arm, and when the battery cell moves to a certain position, the other side of the battery cell will contact the rotating shaft, and when the rotating shaft rotates, it will drive the battery cell to tilt toward the sheet pushing arm, and when the sheet pushing arm moves to a certain position, the battery cell will completely tilt onto the inner inclined surface of the sheet pushing arm, and then the motor drives the sheet blocking arm and the sheet pushing arm to move back to both sides, and the battery cell will slide from the inclined surface of the sheet pushing arm onto the conveyor belt, thereby realizing the turning over of the battery cell and correcting the front and back sides of the battery cell.

Description

Technical Field

[0001] The invention belongs to the technical field of battery cell string welding, in particular to a battery cell string welding machine. Background Art

[0002] Cell stringing machines are key equipment in the photovoltaic module production process, used to connect individual solar cells into long strings through welding for further assembly into solar modules. The design and function of this machine directly impact the efficiency and yield of photovoltaic modules.

[0003] Traditional multi-bay solar cell systems typically have between 2 and 6 main busbars. Correspondingly, each cell is lined up side by side using 26 fixed-length solder ribbons, aligned one-to-one with the busbars. However, with technological advancements and policy guidance, the demand for cell light conversion efficiency is increasing. Against this backdrop, the development of dense-grid cells has become a future trend. Dense-grid cells utilize fine grids, and the corresponding solder ribbons used to solder dense-grid cells are thinner than traditional ribbons. Currently, known busbar counts for dense-grid cells on the market range from 12 watts, to 18, 24, and even potentially exceeding 36 watts. In theory, a fine grid facilitates cell current collection and reduces lateral resistance. The smaller the spacing between fine grid lines, the lower the lateral resistance. However, this also requires higher-precision soldering equipment. Therefore, the development of dense-grid cells has also been accompanied by upgrades and modifications to cell stringing equipment.

[0004] In the current existing technology, since the front and back sides and electrode positions of the battery cells are different, if the front and back sides and electrode positions of the battery cells are placed incorrectly during string welding, it will cause string welding errors during string welding, resulting in damage to the battery cells and making them unusable, causing waste.

[0005] To this end, the present invention provides a battery cell string welding machine. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: a battery cell string welding machine described in the present invention comprises a casing, a conveyor belt is fixedly installed on the inner wall of the casing, the top surface of the conveyor belt is laid with battery cells, a feeding port is opened on one inner wall of the casing, and a flipping unit is arranged on both sides of the outer side of the conveyor belt, the flipping unit comprises a sheet blocking arm and a sheet pushing arm, the flipping unit is used to drive the sheet blocking arm and the sheet pushing arm to flip the battery cells, and the sheet turning unit comprises a sheet blocking arm and a sheet pushing arm. The sheet turning unit is used to drive the sheet blocking arm and the sheet pushing arm to flip the battery cells.

[0008] The battery cells are placed onto the conveyor belt from the feed port on one side of the casing, and then the conveyor belt drives the battery cells to move. During the movement, the detection component detects the battery cells to determine whether the battery cells are placed properly. When the detection component detects that the battery cells are placed upside down, when the battery cells are driven by the conveyor belt to the flipping unit, the conveyor belt stops moving. At this time, the flipping unit drives the blocking arm and the pushing arm to flip the battery cells, thereby completing the correction of the front and back sides of the battery cells. Then the conveyor belt continues to drive the battery cells to move. When the battery cells move to the moving arm on the transport device, the transport device drives the battery cells from the conveyor belt to the indexing box through the moving arm. When the battery cells enter the indexing box, if the detection component detects that the electrode position of the battery cell is placed incorrectly, the rotating unit drives the support to index the battery cell, which plays a role in correcting the electrode position of the battery cell. Then the moving arm drives the battery cell to move out of the indexing box, and finally moves it into the string welding device to perform string welding operations between the battery cells.

[0009] Preferably, the detection component includes a camera, a gantry is fixedly installed on the top of one end of the conveyor belt, a verification device is fixedly installed on the top of the gantry, the camera is fixedly installed on the inner wall of the gantry, and the verification device and the camera are connected by a transmission line. When the battery cell moves in the conveyor belt, the camera on the gantry scans the surface of the battery cell. When the scan is completed, the scanned information is fed back to the verification device through the transmission line. The verification device then verifies and detects the feedback information, and finally determines the front and back sides and electrode positions of the battery cell, thereby controlling the operation of the flipping unit and the rotating unit on the battery cell.

[0010] Preferably, the flip unit also includes a motor, which is fixedly mounted on the top of the casing, and a shift plate is symmetrically fixedly mounted on the output end of the motor, the tops of the two shift plates are fixedly connected to the bottoms of the blocking arm and the pushing arm respectively, the tops of the blocking arms are rotatably connected to a rotating shaft, the blocking arm and the pushing arm are respectively located on both sides of the conveyor belt, when the detection component detects that the front and back of the battery cell are reversed, the verification device controls the motor to operate, and when the motor operates, the pushing arm and the blocking arm are driven to move relative to each other inward through the two shift plates. During the movement, the pushing arm pushes one side of the battery cell toward the blocking arm, and when the other side of the battery cell contacts the blocking arm, the battery cell will be pushed by the pushing arm. The blocking arm moves upward, and when it is pushed to a certain position by the pushing arm, the other side of the battery cell will contact the rotating shaft. Through the thrust transmission of the pushing arm, one side of the battery cell will drive the rotating shaft to rotate. Through the continuous push of the pushing arm on the battery cell, the rotating shaft will drive the battery cell to tilt toward the pushing arm. When the pushing arm moves to a certain position, the battery cell will be limited by the rotating shaft and completely tilted onto the inner inclined surface of the pushing arm. Then the motor drives the blocking arm and the pushing arm to move back to their positions on both sides. During the movement, the battery cell will slide from the inclined surface of the pushing arm and fall onto the conveyor belt, thereby turning over the battery cell.

[0011] Preferably, a torque box is symmetrically fixedly installed on the inner wall of the casing, and the two torque boxes are respectively placed on one side of the blocking arm and the pushing arm, and the inner walls of the two torque boxes are slidably connected with a calibration push plate, and the outer walls of the two calibration push plates are slidably connected to the inner walls of the blocking arm and the pushing arm respectively, and the inner walls of the two torque boxes are symmetrically rotatably connected with gears, and one side of the two calibration push plates is symmetrically fixed with a rack rod 2, and one side of the blocking arm and the pushing arm is symmetrically fixed with a rack rod 1, the teeth on the four gears are respectively engaged with the teeth on the four rack rods 2 and the rack rod 1, and the four rack rods 2 and the rack rod 1 are respectively slidably connected to the inner walls of the two torque boxes in pairs, and when the pushing arm and the blocking arm move inward relative to each other, the pushing arm The arm and the blocking arm drive the gear to rotate through rack rod 1, and the gear rotation drives rack rod 2 to move, and the two calibration push plates will move from the inner wall of the blocking arm and the pushing arm to the inside of the torque box. When the blocking arm and the pushing arm move back to their positions on both sides, similarly, the blocking arm and the pushing arm drive the calibration push plates out of the torque box and reset through gear transmission. When the two calibration push plates move, they push the two sides of the battery cell to move. When the blocking arm and the pushing arm are reset, the two calibration push plates correct the position of the battery cell from both sides to prevent the battery cell from changing its position due to turning over, affecting the movement of the battery cell by the transport device and the moving arm, and preventing the battery cell from moving.

[0012] Preferably, limit arms are symmetrically arranged on the top of the conveyor belt, and shift rods are fixedly installed at the bottom of the two limit arms. Two torque rods are symmetrically arranged between the four rack rods. One end of the two shift rods is fixedly connected to the bottom of the two torque rods respectively, and the outer walls of one end of the two shift rods are slidably connected to the inner walls of the two torque boxes respectively. Before placing the batteries, the blocking arm and the pushing arm are driven by the motor to move relative to each other, and at the same time, the two positioning push plates are driven to move relative to each other on the surface of the conveyor belt. When the two positioning push plates move, the shift rods are driven to move by the torque rods, and when the shift rods move, the two limit arms are driven to move relative to each other at the feed end of the conveyor belt, so that the device can be applied to battery cells of different sizes, and plays a role in adjusting and adapting to battery cells of different sizes.

[0013] Preferably, the rotating unit also includes a rotating cylinder and two supports. The output end of the rotating cylinder is fixedly connected to the bottom of the indexing box. A plate placing ring plate is fixedly installed in the middle position of the inner wall of the indexing box. The supports are symmetrically arranged on both sides of the plate placing ring plate. When the electrode position of the battery cell needs to be adjusted, the cell transport device places the battery cell on the plate placing ring plate in the indexing box through the cell moving arm, and the battery cell will be between the two supports. Then the verification device controls the rotating cylinder to drive the indexing box to rotate by detecting the electrode position of the battery cell, thereby driving the battery cell in the indexing box to index, which plays a role in correcting the electrode position of the battery cell.

[0014] Preferably, the inner wall of the transfer box is symmetrically fixed with telescopes, and the bottom of the two supports is fixedly installed with a shifting plate. The output ends of the two telescopes are respectively fixedly connected to one side of the two shifting plates. When the battery cell is placed between the two supports, the telescope drives the two supports to move inward relative to each other, thereby moving the support at the bottom of the battery cell. When the two sides of the battery cell are attached to the inner walls of the two supports, the telescope stops moving, thereby completing the fixation of the battery cell and preventing the battery cell from moving due to rotation during transfer.

[0015] When the two levers are in the unlocked position, the levers are locked and the two levers are unlocked, and when the levers are unlocked, the levers are unlocked to unlock the other levers, and the two levers are unlocked when the levers are unlocked.

[0016] Preferably, the inner walls of the two matrix boxes are fixedly installed with control buttons, and the two control buttons correspond to the positions of the two force blocks respectively. When the force blocks slide completely into the inner wall of the support seat, the force blocks will squeeze the control buttons in the matrix box, so that the control buttons control the telescopic device to stop operating, thereby controlling the telescopic device to stop.

[0017] Preferably, a workbench is provided on the inner wall of the string welding device, a positioning block is fixedly installed on the top of the workbench, and a door panel is rotatably connected to the outer wall of the string welding device. When the sheet moving arm drives the battery cell to move into the string welding device, the sheet moving arm drives the battery cell to be laid on the workbench. The setting of the positioning block on the top of the workbench can provide a good starting point for the sheet moving arm when laying the battery cell. When the string welding device completes string welding of the battery cell, the battery cell that has been completed by string welding can be taken out of the string welding device by pulling the door panel, which makes it easier to take out the battery cell.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The battery cell string welding machine described in the present invention drives the pushing arm and the blocking arm to move inward relative to each other through the motor. The pushing arm pushes one side of the battery cell to move toward the blocking arm, and the battery cell will move upward on the blocking arm. When the battery cell moves to a certain position, the other side of the battery cell will contact the rotating shaft. When the rotating shaft rotates, it will drive the battery cell to tilt toward the pushing arm. When the pushing arm moves to a certain position, the battery cell will completely tilt onto the inner inclined surface of the pushing arm, and then the motor drives the blocking arm and the pushing arm to move back to both sides, and the battery cell will slide from the inclined surface of the pushing arm and be placed on the conveyor belt, thereby realizing the flipping of the battery cell and correcting the front and back of the battery cell.

[0020] 2. The battery cell string welding machine described in the present invention drives the positioning push plate out of the torque box and reset through the blocking arm and the pushing arm through gear transmission. When the two positioning push plates move, they push the two sides of the battery cell to move. When the blocking arm and the pushing arm are reset, the two positioning push plates correct the position of the battery cell from both sides to prevent the battery cell from changing its position due to turning over.

[0021] 3. The battery cell string welding machine described in the present invention drives the blocking arm and the pushing arm to move relative to each other through a motor, and at the same time drives the two positioning push plates to move relative to each other on the surface of the conveyor belt. When the two positioning push plates move, the shift rod is driven to move by the torque rod, and when the shift rod moves, the two limiting arms are driven to move relative to each other at the feed end of the conveyor belt, so that the device can be applied to battery cells of different sizes, and plays a role in adjusting and adapting to battery cells of different sizes.

[0022] 4. The battery cell string welding machine described in the present invention places the battery cells on a cell placing ring plate, and the telescopic device drives the two supports to move inward relative to each other, so that the supports move at the bottom of the battery cells. When the two sides of the battery cell are in contact with the inner walls of the two supports, the telescopic device stops moving, and then the verification device controls the rotating cylinder to drive the indexing box to rotate by detecting the electrode position of the battery cell, thereby driving the battery cell in the indexing box to index, which plays a role in correcting the electrode position of the battery cell.

[0023] 5. The battery cell string welding machine described in the present invention has a structure in which when the support moves at the bottom of the battery cell, the side end of the battery cell will squeeze the force-bearing block on the inner wall of the support to slide inward. When the force-bearing block is driven inward by the battery cell, the force-bearing block squeezes the reset spring to slide on the shaft, and the force-bearing block will enter the torque box. When the force-bearing block completely slides into the inner wall of the support, the force-bearing block will squeeze the control button in the torque box, thereby controlling the telescopic device to stop operating, avoiding the battery cell being clamped and damaged by the support when fixing the battery cell due to excessive force of the telescopic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 It is the main figure of the present invention;

[0026] Figure 2 It is an overall diagram of the present invention;

[0027] Figure 3 It is a schematic structural diagram of the barrier arm in the present invention;

[0028] Figure 4 It is a structural diagram of the positioning block in the present invention;

[0029] Figure 5 It is a structural schematic diagram of the gantry in the present invention;

[0030] Figure 6 It is a structural schematic diagram of the rotating shaft of the present invention;

[0031] Figure 7 It is a structural diagram of the gear in the present invention;

[0032] Figure 8 This is a schematic structural diagram of the central ring plate of the present invention;

[0033] Figure 9 It is a structural diagram of the support seat in the present invention;

[0034] Figure 10 It is a structural schematic diagram of the central axis of the present invention.

[0035] In the figure: 1. Casing; 2. Serial welding device; 3. Door panel; 4. Conveyor belt; 5. Workbench; 6. Sheet transport device; 7. Indexing box; 8. Sheet blocking arm; 9. Sheet pushing arm; 10. Gantry; 11. Verification device; 12. Camera; 13. Limiting arm; 14. Shifting rod; 15. Torque box; 16. Shifting plate; 17. Support seat; 18. Positioning block; 19. Motor; 20. Rotating shaft; 21. Calibration push plate; 22. Torque rod; 23. Rack rod 1; 24. Gear; 25. Rack rod 2; 26. Sheet ring plate; 27. Telescopic device; 28. Shifting seat plate; 29. ​​Torque box; 30. Force block; 31. Control button; 32. Reset spring; 33. Shaft; 34. Rotating cylinder. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0037] like Figures 1 to 10As shown, a battery cell string welding machine according to an embodiment of the present invention includes a casing 1, a conveyor belt 4 is fixedly installed on the inner wall of the casing 1, and battery cells are laid on the top surface of the conveyor belt 4. A feed port is opened on the inner wall of one side of the casing 1, and flip units are provided on both sides of the outside of the conveyor belt 4. The flip unit includes a blocking arm 8 and a pushing arm 9. The flip unit is used to drive the blocking arm 8 and the pushing arm 9 to flip the battery cells. A sheet transport device 6 is fixedly installed on the top of the inner wall of the casing 1, and the outside of the sheet transport device 6 is connected with The cell moving arm is used to move the cell. An indexing box 7 is fixedly mounted on the inner wall of the housing 1. A rotating unit is provided inside the indexing box 7. The rotating unit includes a support 17. The rotating unit is used to drive the support 17 to index the cell. The indexing box 7 is provided at one end of the conveyor belt 4. A string welding device 2 is fixedly mounted on the outer wall of the housing 1. One end of the cell transport device 6 is placed inside the string welding device 2. A detection component is provided on the top of the conveyor belt 4. The detection component is used to detect whether the cell is placed properly.

[0038] Since the front and back sides of the battery cell and the electrode positions are different, if the front and back sides of the battery cell and the electrode positions are placed incorrectly during string welding, it will cause battery string welding errors;

[0039] The battery cells are placed onto the conveyor belt 4 from the feed port on one side of the housing 1, and then the conveyor belt 4 drives the battery cells to move. During the movement, the detection component detects the battery cells to determine whether the battery cells are placed properly. When the detection component detects that the battery cells are placed upside down, when the battery cells are driven by the conveyor belt 4 to move to the flip unit, the conveyor belt 4 stops moving. At this time, the flip unit drives the blocking arm 8 and the pushing arm 9 to flip the battery cells, thereby completing the correction of the front and back sides of the battery cells. Then the conveyor belt 4 continues to drive the battery cells to move. When the battery cells move to the moving arm on the transport device 6 At the same time, the cell transport device 6 drives the cell from the conveyor belt 4 to the indexing box 7 through the cell moving arm. When the cell enters the indexing box 7, if the detection component detects that the electrode position of the cell is incorrectly placed, the rotating unit drives the support 17 to index the cell, thereby correcting the electrode position of the cell. Then the cell moving arm drives the cell out of the indexing box 7, and finally moves it into the string welding device 2 to perform string welding operations between the cell cells. It should be noted here that the cell transport device 6 and the cell moving arm are both existing technologies, which are only described in this scheme and not explained in detail. The conveyor belt 4 is an intermittent conveyor belt.

[0040] like Figures 4 and 5 As shown, the detection component includes a camera 12, a gantry 10 is fixedly mounted on the top of one end of the conveyor belt 4, a verification device 11 is fixedly mounted on the top of the gantry 10, and the camera 12 is fixedly mounted on the inner wall of the gantry 10. The verification device 11 and the camera 12 are connected by a transmission line;

[0041] When the battery cell moves in the conveyor belt 4, the camera 12 on the gantry 10 scans the surface of the battery cell. When the scan is completed, the scanned information is fed back to the verification device 11 through the transmission line. The verification device 11 then verifies and detects the feedback information, and finally determines the front and back sides and electrode positions of the battery cell, thereby controlling the operation of the flipping unit and the rotating unit on the battery cell. It should be noted here that the transport device 6 consists of two parts: a detection device and a control device.

[0042] like Figures 5 and 6 As shown, the flap unit further includes a motor 19, which is fixedly mounted on the top of the housing 1. Shift plates 16 are symmetrically fixedly mounted on the output end of the motor 19. The tops of the two shift plates 16 are respectively fixedly connected to the bottoms of the blocking arm 8 and the pushing arm 9. The top of the blocking arm 8 is rotatably connected to a rotating shaft 20. The blocking arm 8 and the pushing arm 9 are respectively located on both sides of the conveyor belt 4.

[0043] When the detection component detects that the front and back of the battery cell are reversed, the verification device 11 controls the motor 19 to operate. When the motor 19 operates, the two shift plates 16 drive the push arm 9 and the blocking arm 8 to move inward relative to each other. During the movement, the push arm 9 pushes one side of the battery cell toward the blocking arm 8. When the other side of the battery cell contacts the blocking arm 8, the battery cell will move upward on the blocking arm 8 through the push of the push arm 9. When the battery cell is pushed to a certain position by the push arm 9, the other side of the battery cell will contact the rotating shaft 20, and the thrust of the push arm 9 will cause the battery cell to move upward on the blocking arm 8. When the battery is driven by the rotating shaft 20, one side of the battery cell will drive the rotating shaft 20 to rotate. Through the continuous push of the battery cell by the pushing arm 9, the rotating shaft 20 will drive the battery cell to tilt onto the pushing arm 9. When the pushing arm 9 moves to a certain position, the battery cell will be limited by the rotating shaft 20 and completely tilted onto the inner inclined surface of the pushing arm 9. Then the motor 19 drives the blocking arm 8 and the pushing arm 9 to move back to their positions on both sides. During the movement, the battery cell will slide from the inclined surface of the pushing arm 9 to the conveyor belt 4, thereby realizing the flipping of the battery cell and playing the role of turning over the battery cell.

[0044] like Figures 5 to 7As shown, a torque box 15 is symmetrically fixedly installed on the inner wall of the casing 1, and the two torque boxes 15 are respectively placed on one side of the blocking arm 8 and the pushing arm 9. The inner walls of the two torque boxes 15 are slidably connected with a calibration push plate 21, and the outer walls of the two calibration push plates 21 are slidably connected to the inner walls of the blocking arm 8 and the pushing arm 9 respectively. The inner walls of the two torque boxes 15 are symmetrically rotatably connected with a gear 24, and one side of the two calibration push plates 21 is symmetrically fixed with a rack rod 25, and one side of the blocking arm 8 and the pushing arm 9 is symmetrically fixed with a rack rod 1 23, the teeth on the four gears 24 are respectively engaged with the teeth on the four rack rods 25 and the rack rod 1 23, and the four rack rods 25 and the rack rod 1 23 are respectively slidably connected to the inner walls of the two torque boxes 15 in pairs;

[0045] When the push arm 9 and the blocking arm 8 move inward relative to each other, the push arm 9 and the blocking arm 8 drive the gear 24 to rotate through the rack rod 1 23, and the gear 24 drives the rack rod 25 to move while rotating, and the two calibration push plates 21 will move from the inner wall of the blocking arm 8 and the push arm 9 to the inside of the torque box 15. When the blocking arm 8 and the push arm 9 move back to their positions on both sides, similarly, the blocking arm 8 and the push arm 9 drive the calibration push plate 21 from the torque box 15 through the gear 24. Move out and reset. The two calibration push plates 21 push the two sides of the battery cell to move when they move. When the blocking arm 8 and the pushing arm 9 are reset, the two calibration push plates 21 correct the position of the battery cell from both sides to prevent the battery cell from changing its position due to turning over, affecting the movement of the battery cell by the transport device 6 and the moving arm, and preventing the battery cell from moving. It should be noted here that the inner sides of the blocking arm 8, the pushing arm 9 and the two calibration push plates 21 are all provided with rubber pads.

[0046] like Figures 5 to 7 As shown, the top of the conveyor belt 4 is symmetrically provided with a limit arm 13, and the bottom of each of the two limit arms 13 is fixedly mounted with a shift rod 14. Two moment rods 22 are symmetrically provided between the four rack rods 25. One end of the two shift rods 14 is fixedly connected to the bottom of the two moment rods 22, and the outer wall of one end of the two shift rods 14 is slidably connected to the inner wall of the two moment boxes 15.

[0047] Before placing the battery, the motor 19 drives the blocking arm 8 and the pushing arm 9 to move relative to each other, and at the same time drives the two calibration push plates 21 to move relative to each other on the surface of the conveyor belt 4. While the two calibration push plates 21 are moving, the shift rod 14 is driven to move through the torque rod 22. While the shift rod 14 is moving, it drives the two limiting arms 13 to move relative to each other at the feed end of the conveyor belt 4, so that the device can be applied to battery cells of different sizes, and plays a role in adjusting and adapting to battery cells of different sizes. It should be noted here that the two calibration push plates 21 and the two limiting arms 13 move the same distance at the top of the conveyor belt 4, and the inner sides of the calibration push plates 21 and the limiting arms 13 are on the same horizontal line.

[0048] like Figures 8 to 10 As shown, the rotating unit further includes a rotating cylinder 34, and there are two supports 17. The output end of the rotating cylinder 34 is fixedly connected to the bottom of the indexing box 7. A sheet placement ring plate 26 is fixedly installed in the middle position of the inner wall of the indexing box 7. The supports 17 are symmetrically arranged on both sides of the sheet placement ring plate 26.

[0049] When the electrode position of the battery cell needs to be adjusted, the cell transport device 6 places the battery cell on the cell placement ring plate 26 in the indexing box 7 through the cell moving arm, and the battery cell will be between the two supports 17. Then the verification device 11 controls the rotating cylinder 34 to drive the indexing box 7 to rotate by detecting the electrode position of the battery cell, thereby driving the battery cell in the indexing box 7 to index, which plays a role in correcting the electrode position of the battery cell. It should be noted here that the indexing angle of the rotating cylinder 34 needs to be determined according to the electrode position of the battery cell detected by the verification device 11.

[0050] like Figures 8 and 9 As shown, the inner wall of the indexing box 7 is symmetrically fixed with a retractor 27, and the bottom of the two support seats 17 are fixedly installed with a shifting plate 28, and the output ends of the two retractors 27 are fixedly connected to one side of the two shifting plates 28 respectively;

[0051] When the battery cell is placed between the two supports 17, the telescopic device 27 drives the two supports 17 to move inward relative to each other, so that the supports 17 move at the bottom of the battery cell. When the two sides of the battery cell are attached to the inner walls of the two supports 17, the telescopic device 27 stops moving, thereby completing the fixation of the battery cell and preventing the battery cell from moving due to rotation during rotation.

[0052] like Figures 9 and 10As shown, the outer walls of the two support seats 17 are fixedly mounted with a torque box 29, the inner walls of the two support seats 17 are slidably connected with a force block 30, the outer walls of the two force blocks 30 slide with the inner walls of the two torque boxes 29 respectively, the inner walls of the two torque boxes 29 are symmetrically fixed with shafts 33, the four shafts 33 are slidably connected with the inner walls of the two force blocks 30 in pairs, and two return springs 32 are symmetrically arranged between the two force blocks 30 and the inner walls of the two torque boxes 29, and the return springs 32 are arranged outside the shafts 33;

[0053] When the support 17 moves at the bottom of the battery cell, when it moves to a certain position, the side end of the battery cell will squeeze the force block 30 on the inner wall of the support 17 to slide inward. When the force block 30 is driven inward by the battery cell, the force block 30 squeezes the return spring 32 to slide on the shaft 33, and the force block 30 will enter the torque box 29. When the force block 30 completely slides into the inner wall of the support 17, the retractor 27 stops working to avoid the support 17 from causing the battery cell to be clamped when the support 17 fixes the battery cell due to excessive force of the retractor 27, which plays a role of slowing down and fixing. It should be noted here that a rubber pad is provided on the inner side of the force block 30.

[0054] like Figures 9 and 10 As shown, the inner walls of the two rectangular boxes 29 are fixedly mounted with control buttons 31, and the two control buttons 31 correspond to the positions of the two force-bearing blocks 30 respectively;

[0055] When the force block 30 completely slides into the inner wall of the support seat 17, the force block 30 will squeeze the control button 31 in the torque box 29, so that the control button 31 controls the telescopic device 27 to stop working, thereby controlling the telescopic device 27 to stop.

[0056] like Figures 1 to 4 As shown, the inner wall of the string welding device 2 is provided with a workbench 5, the top of the workbench 5 is fixedly installed with a positioning block 18, and the outer wall of the string welding device 2 is rotatably connected to the door panel 3;

[0057] When the moving arm drives the battery cells to move into the string welding device 2, the moving arm drives the battery cells to be laid on the workbench 5. The setting of the top positioning block 18 of the workbench 5 can provide a good starting point for the moving arm when laying the battery cells. When the string welding device 2 completes the string welding of the battery cells, the battery cells that have been string welded can be taken out of the string welding device 2 by pulling the door panel 3, which makes it easier to take out the battery cells.

[0058] Working principle: The battery cells are placed onto the conveyor belt 4 from the feed port on one side of the casing 1, and then the conveyor belt 4 drives the battery cells to move. During the movement, the detection component detects the battery cells to determine whether the battery cells are placed properly. When the detection component detects that the battery cells are placed upside down, when the battery cells are driven by the conveyor belt 4 to move to the flip unit, the conveyor belt 4 stops moving. At this time, the flip unit drives the blocking arm 8 and the pushing arm 9 to flip the battery cells, thereby completing the correction of the front and back sides of the battery cells. Then the conveyor belt 4 continues to drive the battery cells to move. When the battery cells move to the moving arm on the transport device 6, the transport device 6 drives the battery cells from the conveyor belt 4 to the indexing box 7 through the moving arm. When the battery cells enter the indexing box 7, if the detection component detects that the electrode position of the battery cells is placed incorrectly, the rotating unit drives the support 17 to index the battery cells, which plays a role in correcting the electrode position of the battery cells. Then the moving arm drives the battery cells to move out of the indexing box 7, and finally moves into the string welding device 2 to perform string welding operations between the battery cells.

[0059] When the battery cell moves on the conveyor belt 4, the camera 12 on the gantry 10 scans the surface of the battery cell. When the scan is completed, the scanned information is fed back to the verification device 11 through the transmission line. The verification device 11 then verifies and detects the feedback information, and finally determines the front and back sides of the battery cell and the electrode position, thereby controlling the operation of the flip unit and the rotation unit on the battery cell;

[0060] When the detection component detects that the front and back of the battery cell are reversed, the verification device 11 controls the motor 19 to operate. When the motor 19 operates, the two shift plates 16 drive the push arm 9 and the blocking arm 8 to move inward relative to each other. During the movement, the push arm 9 pushes one side of the battery cell toward the blocking arm 8. When the other side of the battery cell contacts the blocking arm 8, the battery cell will move upward on the blocking arm 8 through the push of the push arm 9. When the battery cell is pushed to a certain position by the push arm 9, the other side of the battery cell will contact the rotating shaft 20, and the thrust of the push arm 9 will cause the battery cell to move upward on the blocking arm 8. When the battery is driven by the rotating shaft 20, one side of the battery cell will drive the rotating shaft 20 to rotate. Through the continuous pushing of the battery cell by the pushing arm 9, the rotating shaft 20 will drive the battery cell to tilt onto the pushing arm 9. When the pushing arm 9 moves to a certain position, the battery cell will be limited by the rotating shaft 20 and completely tilted onto the inner inclined surface of the pushing arm 9. Then the motor 19 drives the blocking arm 8 and the pushing arm 9 to move back to their positions on both sides. During the movement, the battery cell will slide from the inclined surface of the pushing arm 9 to the conveyor belt 4, thereby realizing the flipping of the battery cell and playing the role of turning over the battery cell.

[0061] When the sheet-pushing arm 9 and the sheet-blocking arm 8 move inwardly relative to each other, the sheet-pushing arm 9 and the sheet-blocking arm 8 drive the gear 24 to rotate through the rack rod 1 23. The gear 24 drives the rack rod 25 to move while rotating, and the two calibration push plates 21 will move from the inner wall of the sheet-blocking arm 8 and the sheet-pushing arm 9 to the inside of the torque box 15. When the sheet-blocking arm 8 and the sheet-pushing arm 9 move back to their positions on both sides, similarly, the sheet-blocking arm 8 and the sheet-pushing arm 9 drive the calibration push plates 21 to move out of the torque box 15 and reset through the gear 24. When the two calibration push plates 21 move, they push the two sides of the battery cell to move. When the blocking arm 8 and the sheet-pushing arm 9 are reset, the two calibration push plates 21 correct the position of the battery cell from both sides to prevent the battery cell from changing its position due to turning over, affecting the movement of the battery cell by the sheet-moving device 6 and the sheet-moving arm, and preventing the battery cell from running out of position.

[0062] Before placing the battery, the motor 19 drives the blocking arm 8 and the pushing arm 9 to move relative to each other, and at the same time drives the two calibration push plates 21 to move relative to each other on the surface of the conveyor belt 4. At the same time, the two calibration push plates 21 drive the shift rod 14 to move through the moment rod 22. At the same time, the shift rod 14 moves and drives the two limiting arms 13 to move relative to each other at the feeding end of the conveyor belt 4. Therefore, the device can be applied to battery cells of different sizes and plays the role of adjusting and adapting to battery cells of different sizes.

[0063] When the battery cell electrode position needs to be adjusted, the cell transport device 6 places the battery cell on the cell placement ring plate 26 in the indexing box 7 through the cell moving arm. The battery cell will then be between the two supports 17. The verification device 11 then controls the rotary cylinder 34 to rotate the indexing box 7 based on the detected battery cell electrode position, thereby driving the battery cell in the indexing box 7 to index and correct the battery cell electrode position.

[0064] When the battery cell is placed between the two supports 17, the retractor 27 drives the two supports 17 to move inward relative to each other, so that the supports 17 move at the bottom of the battery cell. When both sides of the battery cell are in contact with the inner walls of the two supports 17, the retractor 27 stops moving, thereby completing the fixation of the battery cell and preventing the battery cell from shifting due to rotation during rotation.

[0065] When the support 17 moves at the bottom of the battery cell, when it moves to a certain position, the side end of the battery cell will squeeze the force block 30 on the inner wall of the support 17 to slide inward. When the force block 30 is driven inward by the battery cell, the force block 30 squeezes the return spring 32 to slide on the shaft 33, and the force block 30 enters the torque box 29. When the force block 30 completely slides into the inner wall of the support 17, the retractor 27 stops working, avoiding the support 17 from clamping the battery cell due to excessive force of the retractor 27 when fixing the battery cell, thereby playing the role of slowing down the fixation.

[0066] When the force block 30 completely slides into the inner wall of the support seat 17, the force block 30 will squeeze the control button 31 in the torque box 29, so that the control button 31 controls the retractor 27 to stop working, thereby controlling the retractor 27 to stop.

[0067] When the moving arm drives the battery cells to move into the string welding device 2, the moving arm drives the battery cells to be laid on the workbench 5. The setting of the top positioning block 18 of the workbench 5 can provide a good starting point for the moving arm when laying the battery cells. When the string welding device 2 completes the string welding of the battery cells, the battery cells that have been string welded can be taken out of the string welding device 2 by pulling the door panel 3, which makes it easier to take out the battery cells.

[0068] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery cell string welding machine, characterized by: The invention comprises a housing (1), a conveyor belt (4) is fixedly installed on the inner wall of the housing (1), a battery cell is laid on the top surface of the conveyor belt (4), a feed port is opened on the inner wall of one side of the housing (1), and flipping units are arranged on both sides of the outside of the conveyor belt (4), the flipping units include a blocking arm (8) and a pushing arm (9), and the flipping units are used to drive the blocking arm (8) and the pushing arm (9) to flip the battery cell, a sheet transport device (6) is fixedly installed on the top of the inner wall of the housing (1), and a sheet moving arm is connected to the outside of the sheet transport device (6), and the sheet moving arm is used to In order to drive the battery cells to move, a transfer box (7) is fixedly installed on the inner wall of the housing (1), a transfer unit is arranged inside the transfer box (7), the transfer unit includes a support (17), and the transfer unit is used to drive the support (17) to transfer the battery cells. The transfer box (7) is arranged at one end of the conveyor belt (4), a string welding device (2) is fixedly installed on the outer wall of the housing (1), one end of the sheet transport device (6) is placed inside the string welding device (2), and a detection component is arranged on the top of the conveyor belt (4), and the detection component is used to detect whether the battery cells are placed properly; The flap unit further comprises a motor (19), which is fixedly mounted on the top of the housing (1), and a shift plate (16) is symmetrically fixedly mounted on the output end of the motor (19), the tops of the two shift plates (16) are respectively fixedly connected to the bottoms of the flap arm (8) and the flap push arm (9), the top of the flap arm (8) is rotatably connected to a rotating shaft (20), and the flap arm (8) and the flap push arm (9) are respectively located on both sides of the conveyor belt (4); The inner wall of the housing (1) is symmetrically fixed with a torque box (15), and the two torque boxes (15) are respectively placed on one side of the blocking arm (8) and the pushing arm (9). The inner walls of the two torque boxes (15) are slidably connected with a calibration push plate (21), and the outer walls of the two calibration push plates (21) are slidably connected with the inner walls of the blocking arm (8) and the pushing arm (9). The inner walls of the two torque boxes (15) are symmetrically rotatably connected with a gear (24), and one side of the two calibration push plates (21) is symmetrically fixed with a rack rod 2 (25), and one side of the blocking arm (8) and the pushing arm (9) is symmetrically fixed with a rack rod 1 (23), and the teeth on the four gears (24) are respectively engaged with the teeth on the four rack rods 2 (25) and the rack rod 1 (23), and the four rack rods 2 (25) and the rack rod 1 (23) are respectively slidably connected to the inner walls of the two torque boxes (15).

2. The battery cell string welding machine according to claim 1, characterized in that: The detection component includes a camera (12), a gantry (10) is fixedly installed on the top of one end of the conveyor belt (4), a verification device (11) is fixedly installed on the top of the gantry (10), the camera (12) is fixedly installed on the inner wall of the gantry (10), and the verification device (11) and the camera (12) are connected via a transmission line.

3. The battery cell string welding machine according to claim 2, characterized in that: A limit arm (13) is symmetrically arranged on the top of the conveyor belt (4), and a shift rod (14) is fixedly installed at the bottom of each of the two limit arm rods (13). Two moment rods (22) are symmetrically arranged between the four rack rods (25), and one end of the two shift rods (14) is fixedly connected to the bottom of the two moment rods (22), and the outer wall of one end of the two shift rods (14) is slidably connected to the inner wall of the two moment boxes (15).

4. The battery cell string welding machine according to claim 3, characterized in that: The rotating unit further includes a rotating cylinder (34), and the number of the supporting seats (17) is two. The output end of the rotating cylinder (34) is fixedly connected to the bottom of the indexing box (7). A sheet placing ring plate (26) is fixedly installed at the middle position of the inner wall of the indexing box (7), and the supporting seats (17) are symmetrically arranged on both sides of the sheet placing ring plate (26).

5. The battery cell string welding machine according to claim 4, characterized in that: The inner wall of the indexing box (7) is symmetrically fixed with a telescoping device (27), the bottoms of the two support seats (17) are fixedly installed with a shifting seat plate (28), and the output ends of the two telescoping devices (27) are respectively fixedly connected to one side of the two shifting seat plates (28).

6. The battery cell string welding machine according to claim 5, characterized in that: The outer walls of the two support seats (17) are fixedly mounted with a moment box (29), the inner walls of the two support seats (17) are slidably connected with a force block (30), the outer walls of the two force blocks (30) slide with the inner walls of the two moment boxes (29), the inner walls of the two moment boxes (29) are symmetrically fixed with shafts (33), the four shafts (33) are slidably connected with the inner walls of the two force blocks (30), two return springs (32) are symmetrically arranged between the two force blocks (30) and the inner walls of the two moment boxes (29), and the return springs (32) are arranged outside the shafts (33).

7. The cell string welding machine according to claim 6, characterized in that: The inner walls of the two rectangular boxes (29) are fixedly mounted with control buttons (31), and the two control buttons (31) correspond to the positions of the two force-bearing blocks (30) respectively.

8. The battery cell string welding machine according to claim 7, characterized in that: An operating table (5) is provided on the inner wall of the string welding device (2), a positioning block (18) is fixedly installed on the top of the operating table (5), and a door panel (3) is rotatably connected to the outer wall of the string welding device (2).

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