Battery piece series welding machine

Abstract

The invention belongs to the technical field of battery piece series welding, and particularly relates to a battery piece series welding machine which comprises a machine shell, a conveying belt is fixedly installed on the inner wall of the machine shell, battery pieces are laid on the surface of the top of the conveying belt, and a feeding opening is formed in the inner wall of one side of the machine shell; the battery piece pushing arm and the battery piece blocking arm are driven by the motor to move inwards relatively, the battery piece pushing arm pushes one side of the battery piece to move towards the battery piece blocking arm, the battery piece moves upwards on the battery piece blocking arm, and when the battery piece moves to a certain position, the other side of the battery piece is in contact with the rotating shaft, so that the battery piece can move upwards. When the rotating shaft rotates, the battery piece can be driven to be attached to the piece pushing arm in an inclined mode, when the piece pushing arm moves to a certain position, the battery piece can be completely inclined to the inclined face of the inner side of the piece pushing arm, then the motor drives the piece blocking arm and the piece pushing arm to move backwards towards the two sides to return, and the battery piece can slide onto the conveying belt from the inclined face of the piece pushing arm. Therefore, the turn-over of the battery piece is realized, and the effect of correcting the front and back surfaces of the battery piece is achieved.

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] The cell stringing machine is a key equipment in the production process of photovoltaic modules. It is used to connect individual solar cells into long strings by welding so that they can be further assembled into solar modules. The design and function of this machine directly affect the efficiency and output of photovoltaic modules.

[0003] The main grid lines of traditional multi-shed solar cells are usually between 2-6 sheds. Correspondingly, 26 fixed-length welding strips are laid side by side on each side of each cell and correspond to the main grid lines. However, with the upgrading of technology and policy guidance, the requirements for the light conversion efficiency of cells are getting higher and higher. In this context, the development of dense grid cells has become a future development direction. Dense grid cells use fine grids. Correspondingly, the welding strips used to weld dense grid cells are thinner than traditional welding strips. The main grid numbers of dense grid cells are currently known to be 12 sheds, 18 grids, 24 grids, etc., and may even reach and exceed 36 sheds. In theory, fine grids are more conducive to the collection of cell currents, with smaller lateral resistance. The smaller the spacing between fine grid lines, the smaller the lateral resistance, but the required precision of welding equipment is also higher. Therefore, the development of dense grid cells is also accompanied by the upgrade and change of 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, thereby causing the battery cells to be damaged and unusable, resulting in 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 problems 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, battery cells are laid on the top surface of the conveyor belt, a feeding port is opened on one inner wall of the casing, and flipping units are arranged on both sides of the outside of the conveyor belt, the flipping unit comprises a blocking arm and a pushing arm, the flipping unit is used to drive the blocking arm and the pushing arm to flip the battery cells, a sheet transporting device is fixedly installed on the top of the inner wall of the casing, a sheet moving arm is connected to the outside of the sheet transporting device, and the sheet moving arm is used to drive the battery cells to move, a transfer box is fixedly installed on the inner wall of the casing, a rotating unit is arranged inside the transfer box, the rotating unit comprises a support seat, the rotating unit is used to drive the support seat to transfer the battery cells, the transfer box is arranged at one end of the conveyor belt, a string welding device is fixedly installed on the outer wall of the casing, one end of the sheet transporting device is placed inside the string welding device, and a detection component is arranged on the top of the conveyor belt, and the detection component is used to detect whether the battery cells are placed perfectly; 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 move 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 shifting arm on the sheet transporting device, the sheet transporting device drives the battery cells from the conveyor belt to the transfer box through the shifting arm. When the battery cells enter the transfer box, if the detection component detects that the electrode position of the battery cells is placed incorrectly, the transfer unit drives the support to transfer the battery cells, which plays a role in correcting the electrode position of the battery cells. Then the shifting arm drives the battery cells to move out of the transfer box, and finally moves them into the string welding device to perform string welding operations between the battery cells.

[0008] 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, 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, and when the scan is completed, the scanned information is fed back to the verification device through the transmission line, and then the verification device verifies and detects the feedback information, and finally determines the front and back sides and the electrode position of the battery cell, thereby controlling the operation of the flipping unit and the rotating unit on the battery cell.

[0009] Preferably, the flipping 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 respectively fixedly connected to the bottoms of the blocking arm and the pushing arm, and the tops of the blocking arms are rotatably connected to a rotating shaft, and 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 sides 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 relatively 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, and through the thrust transmission of the pushing arm, one side of the battery cell will drive the rotating shaft to rotate. Through the continuous pushing of the battery cell by the pushing arm, the rotating shaft will drive the battery cell to lean toward the pushing arm when it rotates. When the pushing arm moves to a certain position, the battery cell will be completely tilted onto the inner inclined surface of the pushing arm due to the limited rotation of the rotating shaft, and 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.

[0010] 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, the inner walls of the two torque boxes are slidably connected with a calibration push plate, 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, the inner walls of the two torque boxes are symmetrically rotatably connected with gears, one side of the two calibration push plates is symmetrically fixedly installed with a rack rod 2, one side of the blocking arm and the pushing arm is symmetrically fixedly installed with a rack rod 1, the teeth on the four gears are respectively meshed with the teeth on the four rack rods 2 and the rack rod 1, 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 rotation of the gear 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 matrix 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 matrix 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 position of the battery cell from changing 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.

[0011] Preferably, limit arms are symmetrically arranged on the top of the conveyor belt, shift rods are fixedly installed at the bottom of the two limit arms, two moment 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 moment rods, and the outer walls of one end of the two shift rods are slidably connected to the inner walls of the two moment boxes, respectively. Before placing the batteries, the blocking arm and the pushing arm are driven by a motor to move relative to each other, and the two positioning push plates are driven to move relative to each other on the surface of the conveyor belt while moving. The two positioning push plates are driven to move the shift rods through the moment rods while moving, and the movement of the shift rods drives the two limit arms 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 can be adjusted to suit battery cells of different sizes.

[0012] 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 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 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 placing ring plate in the indexing box through the cell moving arm, and the battery cell will be between the two supports. Subsequently, 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.

[0013] Preferably, the inner wall of the transfer box is symmetrically fixed with telescopes, and the bottom of the two supports are fixedly installed with shifting plates. 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 in contact with 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.

[0014] Preferably, the outer walls of the two support seats are fixedly installed with a square box, and the inner walls of the two support seats are slidably connected with force blocks, the outer walls of the two force blocks slide with the inner walls of the two square boxes respectively, and the inner walls of the two square boxes are symmetrically fixed with shaft rods, and the four shaft rods are slidably connected with the inner walls of the two force blocks in pairs, and two return springs are symmetrically arranged between the two force blocks and the inner walls of the two square boxes. The return springs are arranged on the outside of the shaft rods. When the support seat 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 blocks on the inner wall of the support seat to slide inwardly. When the force block moves inwardly driven by the battery cell, the force block squeezes the return spring to slide on the shaft rod, and the force block will enter the square box. When the force block completely slides into the inner wall of the support seat, the telescope stops working at this time, to avoid the support seat from clamping the battery cell due to excessive force of the telescope when fixing the battery cell, thereby playing a role of slowing down and fixing.

[0015] 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 completely slide 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 telescope to stop operating, thereby controlling the telescope to stop.

[0016] 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 sheet to move into the string welding device, the sheet moving arm drives the battery sheet 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 sheet. When the string welding device completes the string welding of the battery sheet, the battery sheet that has been completed can be taken out of the string welding device by pulling the door panel, which facilitates the removal of the battery sheet.

[0017] The beneficial effects of the present invention are as follows: 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 a 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, and when the rotating shaft rotates, it will drive the battery cell to lean against 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 fall onto the conveyor belt, thereby realizing the turning over of the battery cell and correcting the front and back sides of the battery cell.

[0018] 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. The two positioning push plates push the two sides of the battery cell to move when moving. 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 position of the battery cell from changing due to turning over.

[0019] 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 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 through 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 can be adjusted to suit battery cells of different sizes.

[0020] 4. The battery cell string welding machine described in the present invention places the battery cell on a cell placing ring plate, and the telescope drives the two supports to move inward relative to each other, thereby causing the supports to move at the bottom of the battery cell. When the two sides of the battery cell are in contact with the inner walls of the two supports, the telescope stops moving, and then the verification device controls the rotating cylinder to drive the indexing box to rotate through the detected electrode position of the battery cell, thereby driving the battery cell in the indexing box to index, thereby correcting the electrode position of the battery cell.

[0021] 5. The battery cell string welding machine described in the present invention has a structure that when the support seat moves at the bottom of the battery cell, the side end of the battery cell will squeeze the force block on the inner wall of the support seat to slide inward. When the force block is driven by the battery cell to move inward, the force block squeezes the reset spring to slide on the shaft rod, and the force block will enter the torque box. When the force block completely slides into the inner wall of the support seat, the force block will squeeze the control button in the torque box, thereby controlling the telescope to stop working, thereby avoiding the support seat fixing the battery cell due to excessive force of the telescope, which may cause damage to the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is the main figure of the present invention; Figure 2 It is an overall diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the barrier arm in the present invention; Figure 4 It is a structural schematic diagram of the positioning block in the present invention; Figure 5 It is a structural schematic diagram of the gantry in the present invention; Figure 6 It is a structural schematic diagram of the rotating shaft in the present invention; Figure 7 It is a schematic diagram of the structure of the gear in the present invention; Figure 8 It is a schematic diagram of the structure of the middle plate ring plate of the present invention; Fig. 9 It is a structural schematic diagram of the support seat in the present invention; Fig.10 It is a structural schematic diagram of the central axis of the present invention.

[0024] In the figure: 1. casing; 2. welding device; 3. door panel; 4. conveyor belt; 5. workbench; 6. film transport device; 7. transfer box; 8. film blocking arm; 9. film pushing arm; 10. gantry; 11. verification device; 12. camera; 13. limit arm; 14. shift rod; 15. torque box; 16. shift 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. film placing ring plate; 27. telescope; 28. shift seat plate; 29. ​​torque box; 30. force block; 31. machine control button; 32. reset spring; 33. shaft rod; 34. rotating cylinder. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] like Figures 1 to 10 As shown, a battery cell string welding machine described in 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 arranged 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 cell. 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 sheet moving arm is used to drive the battery sheet 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. The transfer unit is used to drive the support 17 to transfer the battery sheet. 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 moving device 6 is placed inside the string welding device 2. A detection component is arranged on the top of the conveyor belt 4. The detection component is used to detect whether the battery sheet is placed properly; 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 the battery cell string welding error; 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 function of correcting 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 sheet transport device 6 drives the battery cell from the conveyor belt 4 to the transfer box 7 through the sheet moving arm. When the battery cell enters the transfer box 7, if the detection component detects that the electrode position of the battery cell is placed incorrectly, the transfer unit drives the support 17 to transfer the battery cell, which plays a role in correcting the electrode position of the battery cell. Then the sheet moving arm drives the battery cell out of the transfer box 7, and finally moves it into the string welding device 2 to perform string welding operations between the battery cells. It should be noted here that the sheet transport device 6 and the sheet moving arm are both existing technologies, which are only used for description in this scheme and are not explained in detail. The conveyor belt 4 is an intermittent conveyor belt.

[0027] like Figures 4 to 5 As shown, 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 by a transmission line; 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 the electrode position of the battery cell, thereby controlling the operation of the flipping unit and the rotating unit on the battery cell. It should be explained here that the transport device 6 consists of two parts: a detection device and a control device.

[0028] 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, and a shift plate 16 is symmetrically fixedly mounted on the output end of the motor 19, and 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, and the top of the blocking arm 8 is rotatably connected to a rotating shaft 20, and the blocking arm 8 and the pushing arm 9 are respectively located on both sides of the conveyor belt 4; 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, it drives the push arm 9 and the blocking arm 8 to move inward relative to each other through the two shift plates 16. 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 push arm 9 pushes to a certain position, the other side of the battery cell will contact the rotating shaft 20. Through the thrust of the push arm 9 The battery sheet is driven by the rotating shaft 20, and the battery sheet is continuously pushed by the pushing arm 9. When the rotating shaft 20 rotates, the battery sheet is driven to lean against the pushing arm 9. When the pushing arm 9 moves to a certain position, the battery sheet is 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 the two sides. During the movement, the battery sheet will slide from the inclined surface of the pushing arm 9 to the conveyor belt 4, thereby realizing the turning over of the battery sheet.

[0029] like Figures 5 to 7 As 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, and 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 respectively slidably connected to the inner walls of the blocking arm 8 and the pushing arm 9, and 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 fixedly installed with a rack rod 25, and one side of the blocking arm 8 and the pushing arm 9 is symmetrically fixedly installed with a rack rod 1 23, and the teeth on the four gears 24 are respectively meshed 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; When the push-piece arm 9 and the blocking arm 8 move inwardly relative to each other, the push-piece 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-piece arm 9 to the inside of the torque box 15. When the blocking arm 8 and the push-piece arm 9 move back to the sides, similarly, the blocking arm 8 and the push-piece arm 9 drive the calibration push plate 21 from the torque box 15 through the gear 24. Move out and reset. The two positioning 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 have completed the reset, the two positioning 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 cell transport device 6 and the moving arm, and preventing the battery cell from moving. It should be noted that the inner sides of the blocking arm 8, the pushing arm 9 and the two positioning push plates 21 are all provided with rubber pads.

[0030] like Figures 5 to 7 As shown, the top of the conveyor belt 4 is symmetrically provided with a limit arm 13, the bottoms of the two limit arm 13 are fixedly installed with a shift rod 14, and two moment rods 22 are symmetrically provided between the four rack rods 25, one end of the two shift rods 14 is respectively 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 respectively slidably connected to the inner wall of the two moment boxes 15; 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 positioning push plates 21 to move relative to each other on the surface of the conveyor belt 4. While the two positioning 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, the two limiting arms 13 are driven to move relative to each other at the feeding end of the conveyor belt 4 for adjustment, 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 positioning 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 positioning push plates 21 and the limiting arms 13 are on the same horizontal line.

[0031] like Figures 8 to 10 As shown, the rotating unit further includes a rotating cylinder 34, and there are two support seats 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 at the middle position of the inner wall of the indexing box 7, and the support seats 17 are symmetrically arranged on both sides of the sheet placement ring plate 26. When the electrode position of the battery cell needs to be adjusted, the cell transport device 6 places the battery cell on the cell placing 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.

[0032] like Figures 8 to 9 As shown, the inner wall of the indexing box 7 is symmetrically fixedly installed with a retractor 27, 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; When the battery cell is placed between the two supports 17, the telescope 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 telescope 27 stops moving, thereby completing the fixation of the battery cell and preventing the battery cell from moving due to rotation during transfer.

[0033] like Figures 9 and 10 As shown, the outer walls of the two support seats 17 are fixedly installed with a square 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 square boxes 29 respectively, the inner walls of the two square boxes 29 are symmetrically fixed with shaft rods 33, the four shaft rods 33 are slidably connected with the inner walls of the two force blocks 30 respectively, and two return springs 32 are symmetrically arranged between the two force blocks 30 and the inner walls of the two square boxes 29, and the return springs 32 are arranged outside the shaft rods 33; 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 by the battery cell to move inward, 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 telescope 27 stops working to avoid the support 17 from clamping the battery cell due to excessive force of the telescope 27 when fixing the battery cell, thereby playing a role of slowing down and fixing. It should be noted here that a rubber pad is arranged on the inner side of the force block 30.

[0034] 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 blocks 30 respectively; 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.

[0035] like Figures 1 to 4 As shown, a workbench 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 workbench 5, and a door panel 3 is rotatably connected to the outer wall of the string welding device 2; When the sheet moving arm drives the battery cell to move into the string welding device 2, the sheet moving arm drives the battery cell 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 sheet moving arm when laying the battery cell. When the string welding device 2 completes the string welding of the battery cell, the door panel 3 can be pulled out of the string welding device 2 to facilitate the removal of the battery cell.

[0036] Working principle: the battery cells are placed from the feed port on one side of the casing 1 onto the conveyor belt 4, 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 shifting arm on the sheet transporting device 6, the sheet transporting device 6 drives the battery cells from the conveyor belt 4 to the indexing box 7 through the shifting 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 transfer 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 shifting 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 between the battery cells. 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 scanning is completed, the scanned information is fed back to the verification device 11 through the transmission line. Then the verification device 11 verifies and detects the fed-back 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 rotating unit on the battery cell; 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, it drives the push arm 9 and the blocking arm 8 to move inward relative to each other through the two shift plates 16. 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 push arm 9 pushes to a certain position, the other side of the battery cell will contact the rotating shaft 20. Through the thrust of the push arm 9 The battery sheet is driven by the rotating shaft 20, and the battery sheet is continuously pushed by the pushing arm 9. When the rotating shaft 20 rotates, the battery sheet is driven to lean against the pushing arm 9. When the pushing arm 9 moves to a certain position, the battery sheet is 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 the two sides. During the movement, the battery sheet slides from the inclined surface of the pushing arm 9 to the conveyor belt 4, thereby realizing the flipping of the battery sheet and playing the role of flipping the battery sheet. 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, 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 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, at this time, 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. 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. The two calibration push plates 21 drive the shifting rod 14 to move through the moment rod 22, and at the same time the shifting rod 14 moves, drives the two limiting arms 13 to move relative to each other at the feeding end of the conveyor belt 4, so that 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; When the battery cell needs to adjust the electrode position, 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 is placed between the two support seats 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, thereby correcting the electrode position of the battery cell; 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 the two sides of the battery cell are attached to 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 moving due to rotation during the transfer. 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 inwards. When the force block 30 is driven by the battery cell to move inwards, 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, so as to avoid the support 17 from causing the battery cell to be clamped when the support 17 fixes the battery cell due to the excessive force of the retractor 27, thereby playing the role of slowing down the fixation. 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; When the sheet moving arm drives the battery cell to move into the string welding device 2, the sheet moving arm drives the battery cell 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 sheet moving arm when laying the battery cell. When the string welding device 2 completes the string welding of the battery cell, the door panel 3 can be pulled out of the string welding device 2 to facilitate the removal of the battery cell.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A battery cell string welding machine, characterized in that: The invention comprises a casing (1), a conveyor belt (4) is fixedly mounted on the inner wall of the casing (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 casing (1), a flip unit is arranged on both sides of the outside of the conveyor belt (4), the flip unit comprises 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 cell, a sheet transport device (6) is fixedly mounted on the top of the inner wall of the casing (1), 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 mounted on the inner wall of the housing (1), a transfer unit is arranged inside the transfer box (7), the transfer unit comprises a support seat (17), the transfer unit is used to drive the support seat (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 mounted 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), the detection component is used to detect whether the battery cells are properly placed.

2. A battery cell string welding machine according to claim 1, characterized in that: The detection component comprises 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), the camera (12) is fixedly mounted 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 1, characterized in that: The flap unit further comprises a motor (19), the motor (19) being fixedly mounted on the top of the housing (1), a shift plate (16) being symmetrically fixedly mounted on the output end of the motor (19), the tops of the two shift plates (16) being respectively fixedly connected to the bottoms of the flap blocking arm (8) and the flap pushing arm (9), the top of the flap blocking arm (8) being rotatably connected to a rotating shaft (20), and the flap blocking arm (8) and the flap pushing arm (9) being respectively located on both sides of the conveyor belt (4).

4. The battery cell string welding machine according to claim 3, characterized in that: 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), and 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 respectively slidably connected to the inner walls of the blocking arm (8) and the pushing arm (9), and 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 fixedly installed with a rack rod 2 (25), and one side of the blocking arm (8) and the pushing arm (9) is symmetrically fixedly installed with a rack rod 1 (23), and the teeth on the four gears (24) are respectively meshed 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) in pairs.

5. The battery cell string welding machine according to claim 4, characterized in that: The top of the conveyor belt (4) is symmetrically provided with limit arm rods (13), the bottoms of the two limit arm rods (13) are fixedly provided with shift rods (14), two moment rods (22) are symmetrically provided between the four rack rods (25), one end of the two shift rods (14) is respectively fixedly connected to the bottoms of the two moment rods (22), and the outer walls of one end of the two shift rods (14) are respectively slidably connected to the inner walls of the two moment boxes (15).

6. The battery cell string welding machine according to claim 1, characterized in that: The rotating unit further comprises 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).

7. The battery cell string welding machine according to claim 6, characterized in that: The inner wall of the indexing box (7) is symmetrically fixedly mounted with telescopes (27), the bottoms of the two support seats (17) are fixedly mounted with shifting plates (28), and the output ends of the two telescopes (27) are respectively fixedly connected to one side of the two shifting plates (28).

8. The battery cell string welding machine according to claim 7, characterized in that: The outer walls of the two support seats (17) are fixedly mounted with a square 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 square boxes (29) respectively, the inner walls of the two square boxes (29) are symmetrically fixedly mounted with shaft rods (33), the four shaft rods (33) are slidably connected with the inner walls of the two force blocks (30) in pairs, two return springs (32) are symmetrically arranged between the two force blocks (30) and the inner walls of the two square boxes (29), and the return springs (32) are arranged outside the shaft rods (33).

9. The battery cell string welding machine according to claim 8, characterized in that: The inner walls of the two rectangular boxes (29) are both fixedly mounted with machine control buttons (31), and the two machine control buttons (31) correspond to the positions of the two force-bearing blocks (30) respectively.

10. The battery cell string welding machine according to claim 1, characterized in that: An operating table (5) is arranged on the inner wall of the welding device (2), a positioning block (18) is fixedly mounted on the top of the operating table (5), and a door panel (3) is rotatably connected to the outer wall of the welding device (2).

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