A high-speed and high-efficiency sealing nail welding device and an application method thereof

Abstract

The application provides a high-speed and high-efficiency sealing nail welding device and an application method thereof, which comprises: a feeding and reflow line; a feeding assembly comprising a feeding mechanism; a cleaning assembly comprising a cleaning reference table and a laser cleaning mechanism; a nail feeding assembly comprising a nail separating mechanism, a nail feeding detection mechanism and a nail feeding mechanism; a welding assembly comprising a pre-welding mechanism and a plurality of welding mechanisms; the plurality of welding mechanisms are located at the rear side of the pre-welding mechanism to weld the battery after pre-welding; a rejection assembly comprising an NG nail rejection mechanism; a detection assembly comprising a detection mechanism for detecting the battery; a discharging assembly comprising a discharging mechanism; the application has high automation degree, high processing precision and high work efficiency, can remove welding slag from the welding position of the battery, reduces the overkill rate of post-welding detection, effectively prevents welding omission and improves the welding quality; the nail feeding assembly can efficiently feed the nails to the battery and detect the nail quality, greatly improves the one-time welding optimization rate.

Description

Technical Field

[0001] This invention relates to the field of battery processing technology, and in particular to a high-speed and high-efficiency sealing nail welding equipment and its application method. Background Technology

[0002] Currently, most sealing nail welding equipment on the market is a single machine with an efficiency of 12ppm, 15ppm, 17ppm, or 24ppm. For 50ppm, it is mostly achieved by combining two machines. This method has drawbacks such as large footprint, limited maintenance space, high cost, and a large number of maintenance personnel. Traditional sealing nail welding equipment requires multiple machines with different functions to meet various process requirements, and its work efficiency is difficult to guarantee.

[0003] Therefore, existing sealing nail welding equipment has the following drawbacks:

[0004] 1. Low level of automation and low processing efficiency.

[0005] 2. Low machining accuracy and poor welding quality.

[0006] 3. It occupies a large area.

[0007] 4. High kill rate. Summary of the Invention

[0008] To address the shortcomings of existing technologies, the present invention aims to provide a high-speed and high-efficiency sealing nail welding device and its application method. The device features a compact circulation loop structure, high automation, high processing accuracy, and high working efficiency. It can remove welding slag from the battery welding joint, reducing the over-kill rate in post-weld inspection, and effectively preventing missed welds, thus improving welding quality. The nail mounting component can efficiently nail the battery and inspect the nail mounting quality, greatly improving the first-pass welding yield.

[0009] The embodiments of the present invention are achieved through the following technical solutions:

[0010] A high-speed and high-efficiency sealing nail welding device, comprising:

[0011] A feeding return line is provided, on which a carrier for placing batteries is provided, and the carrier can move in a cyclical manner along the feeding return line;

[0012] The feeding assembly includes a feeding mechanism for clamping and feeding batteries; the feeding mechanism includes a feeding Z-axis moving element and a feeding gripper; the moving end of the feeding Z-axis moving element drives the feeding gripper to move along the Z-axis direction;

[0013] The cleaning assembly includes a cleaning reference stage and a laser cleaning mechanism; the laser cleaning mechanism cleans the battery based on the positioning of the cleaning reference stage.

[0014] The mounting assembly includes a nail dispensing mechanism for dispensing sealing nails, a nail mounting detection mechanism, and a nail mounting mechanism for mounting the battery.

[0015] The welding assembly includes a pre-welding mechanism and several welding mechanisms; the several welding mechanisms are located behind the pre-welding mechanism for welding the pre-welded battery.

[0016] Rejection components, including NG nail rejection mechanism;

[0017] Testing components, a testing mechanism used to test batteries;

[0018] The unloading assembly includes an unloading mechanism for clamping and unloading batteries; the unloading mechanism includes an unloading Z-axis moving element and an unloading gripper; the moving end of the unloading Z-axis moving element drives the unloading gripper to move along the Z-axis direction;

[0019] The feeding assembly, the cleaning assembly, the nailing assembly, the welding assembly, the rejection assembly, the detection assembly, and the unloading assembly are arranged sequentially along the feeding return line.

[0020] According to a preferred embodiment, the welding assembly includes four welding mechanisms, namely a first welding mechanism, a second welding mechanism, a third welding mechanism, and a fourth welding mechanism;

[0021] The carrier is provided with at least eight receiving slots to hold at least eight batteries;

[0022] Each of the welding mechanisms includes at least two welding laser output units.

[0023] According to a preferred embodiment, the device further includes a material rack, wherein the feeding mechanism and the unloading mechanism are located on the front and rear sides of the material rack, respectively; and the front and rear ends of the material rack are respectively provided with feeding X-axis guide rails and unloading X-axis guide rails.

[0024] The Z-axis moving element for feeding is slidably engaged with the X-axis guide rail for feeding via the X-axis slider for feeding.

[0025] The feeding Z-axis moving element slides with the feeding X-axis guide rail via a feeding X-axis slider.

[0026] According to a preferred embodiment, the laser cleaning mechanism includes a cleaning lifting unit, a cleaning transverse moving unit, and a cleaning laser output unit. The cleaning laser output unit is disposed at the lifting end of the cleaning lifting unit, and the cleaning lifting unit is disposed at the moving end of the cleaning transverse moving unit.

[0027] The cleaning reference platform includes a reference lifting unit and a reference panel. The lifting end of the reference lifting unit is connected to the reference panel, and the reference panel has several reference channels.

[0028] According to a preferred embodiment, the nail-separating mechanism includes a vibratory feeder;

[0029] The nail detection mechanism includes a nail-taking unit and a nail-taking moving unit;

[0030] The nail-attaching mechanism includes a nail-attaching unit, a nail-attaching X-axis moving unit, a nail-attaching Y-axis moving unit, and a nail-attaching Z-axis moving unit.

[0031] According to a preferred embodiment, the NG nail removal mechanism includes a nail suction groove and a plurality of nail suction pipes, one end of each of the plurality of nail suction pipes being connected to the nail suction groove, and the other end of each of the plurality of nail suction pipes being provided with a nail suction port.

[0032] According to a preferred embodiment, the testing mechanism includes a first testing unit and a second testing unit;

[0033] The first detection unit is a 3D detection unit;

[0034] The second detection unit is a 2D detection unit.

[0035] According to a preferred embodiment, the feeding return line consists of two parallel X-axis conveyor lines and two parallel Y-axis conveyor lines, with each end of the X-axis conveyor line perpendicular to and connected to one end of each of the two Y-axis conveyor lines.

[0036] According to a preferred embodiment, the pre-welding mechanism includes a pre-welding reference unit, a pre-welding detection transverse movement unit, a pre-welding detection unit, a pre-welding laser output unit, a pre-welding X-axis movement unit, a pre-welding Y-axis movement unit, and a pre-welding Z-axis movement unit.

[0037] The welding mechanism includes a welding inspection unit, a welding laser output unit, a welding X-axis movement unit, a welding Y-axis movement unit, and a welding Z-axis movement unit.

[0038] A high-speed and high-efficiency sealing nail welding equipment and its application method include the following steps:

[0039] Step S1: The feeding mechanism picks up several batteries and transfers them onto the carrier of the feeding return line.

[0040] Step S2: Several batteries are transferred to the cleaning component station, and the battery injection hole is positioned on the cleaning reference table. The laser cleaning mechanism outputs laser to clean the impurities around the battery injection hole.

[0041] Step S3: After the cleaning component station completes its operation, the batteries are transferred to the nailing component station via the feeding return line. After the nailing detection mechanism positions the batteries, the sealing nail is precisely placed into the corresponding battery's injection hole via the nailing mechanism.

[0042] Step S4: After the battery mounting component station completes its operation, it is moved to the welding component station via the feeding return line. The pre-welding mechanism accurately positions the sealing nail of the battery injection hole through the pre-welding detection mechanism. After positioning, the pre-welding process is performed by the pre-welding laser output unit.

[0043] Step S5: After several batteries have completed their pre-welding operation at the pre-welding station, several batteries from the same carrier are sequentially transported to the stations of the first welding mechanism, the second welding mechanism, the third welding mechanism, and the fourth welding mechanism via the feeding return line. The first welding mechanism, the second welding mechanism, the third welding mechanism, and the fourth welding mechanism sequentially weld the unwelded batteries on the carrier. After the carrier has undergone laser welding treatment by the fourth welding mechanism, all the batteries on the carrier are welded, completing the welding process of all the batteries on one carrier at the welding assembly station.

[0044] Step S6: After welding, several batteries are transported to the NG nail removal mechanism station via the feeding return line. The NG nail removal mechanism will detect and collect several batteries with NG sealing nails at the welding assembly station.

[0045] Step S7: After the battery is completed at the NG nail rejection mechanism station, several batteries are sequentially conveyed to the 3D detection unit and 2D detection unit through the feeding return line. If they pass, the battery is picked up by the unloading mechanism and placed in the qualified product area. If they fail, the unloading mechanism places the unqualified battery into the unqualified product area.

[0046] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0047] This invention enables multiple welding mechanisms on the feeding return line to simultaneously process different batteries, achieving high automation, processing accuracy, and work efficiency. A cleaning component removes welding slag from the battery welding joints, reducing the over-scanning rate during post-weld inspection and effectively preventing incomplete welding, thus improving welding quality. A nailing component efficiently nails the batteries and inspects the nailing quality, while a rejection component further filters out substandard sealing nails. Furthermore, an inspection component inspects the welded batteries, significantly improving the first-pass yield. Attached Figure Description

[0048] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 A top view of a high-speed and high-efficiency sealing nail welding device provided in an embodiment of the present invention;

[0050] Figure 2 This is a schematic diagram of the structure of the feeding assembly and the unloading assembly provided in an embodiment of the present invention;

[0051] Figure 3 This is a schematic diagram of the structure of the cleaning assembly provided in an embodiment of the present invention;

[0052] Figure 4 This is a schematic diagram of the structure of the upper nail assembly provided in an embodiment of the present invention;

[0053] Figure 5 This is a schematic diagram of the pre-welding mechanism provided in an embodiment of the present invention;

[0054] Figure 6 This is a schematic diagram of the welding mechanism provided in an embodiment of the present invention;

[0055] Figure 7 This is a schematic diagram of the structure of the rejection component provided in an embodiment of the present invention;

[0056] Figure 8 This is a schematic diagram of the structure of the feeding return line provided in an embodiment of the present invention;

[0057] Figure 9 This is a partial structural schematic diagram of the feeding return line provided in an embodiment of the present invention.

[0058] Icons: 1. Feeding belt; 2. Material rack; 21. Unloading Z-axis moving element; 211. Unloading gripper; 22. Feeding Z-axis moving element; 221. Feeding gripper; 3. Cleaning assembly; 31. Reference lifting unit; 32. Reference panel; 33. Cleaning lifting unit; 34. Cleaning lateral movement unit; 35. Cleaning laser output unit; 4. Nail mounting assembly; 41. Vibratory feeder; 42. Nail mounting photo unit; 43. Nail mounting photo moving unit; 44. Nail suction unit; 45. Nail suction X-axis moving unit; 46. Nail suction Y-axis moving unit; 47. Nail suction Z-axis moving unit; 5. Pre-welding mechanism; 6. First welding mechanism; 7. Second welding mechanism; 8. Third welding mechanism; 9. Fourth welding mechanism; 10. NG nail rejection mechanism; 101. Nail suction groove; 102. 11. Pipeline; 12. First Inspection Unit; 13. Second Inspection Unit; 14. Loading Area; 15. Unloading Belt; 16. Defective Product Area; 17. Carrier; 18. Battery; 19. Unloading X-axis Guide Rail; 20. Loading X-axis Guide Rail; 21. Reference Channel; 22. X-axis Conveyor Line; 23. Y-axis Conveyor Line; 24. Pre-welding Reference Hole; 25. Pre-welding Inspection Transverse Movement Unit; 26. Pre-welding Inspection Unit; 27. Pre-welding Laser Output Unit; 28. Pre-welding X-axis Movement Unit; 39. Pre-welding Y-axis Movement Unit; 301. Pre-welding Z-axis Movement Unit; 302. Pre-welding Reference Unit; 303. Welding Inspection Unit; 304. Welding Laser Output Unit; 305. Welding X-axis Movement Unit; 306. Welding Y-axis Movement Unit; 307. Welding Z-axis Movement Unit. Detailed Implementation

[0059] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0060] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0062] Example

[0063] Please refer to Figures 1 to 9A high-speed and high-efficiency sealing nail welding device includes: a feeding return line, on which a carrier 16 for placing a battery 17 is provided, and the carrier 16 can circulate and move along the feeding return line; a loading assembly, including a loading mechanism for clamping and loading the battery 17; the loading mechanism includes a loading Z-axis moving element 22 and a loading gripper 221; the moving end of the loading Z-axis moving element 22 drives the loading gripper 221 to move along the Z-axis direction; a cleaning assembly 3, including a cleaning reference table and a laser cleaning mechanism; the laser cleaning mechanism cleans the battery 17 according to the positioning of the cleaning reference table; and a nailing assembly 4, including a nailing mechanism for outputting sealing nails, a nailing detection mechanism, and a mechanism for detecting the battery 17. 7. A nailing mechanism for nailing; a welding assembly, including a pre-welding mechanism 5 and several welding mechanisms; the several welding mechanisms are located behind the pre-welding mechanism 5 for welding the pre-welded battery 17; a rejection assembly, including an NG nail rejection mechanism 10; an inspection assembly, an inspection mechanism for inspecting the battery 17; a feeding assembly, including a feeding mechanism for clamping the battery 17 for feeding; the feeding mechanism includes a feeding Z-axis moving element 21 and a feeding gripper 211; the moving end of the feeding Z-axis moving element 21 drives the feeding gripper 211 to move along the Z-axis direction; the feeding assembly, cleaning assembly 3, nailing assembly 4, welding assembly, rejection assembly, inspection assembly, and feeding assembly are arranged sequentially along the feeding return line.

[0064] Preferably, the welding assembly includes four welding mechanisms, namely a first welding mechanism 6, a second welding mechanism 7, a third welding mechanism 8, and a fourth welding mechanism 9;

[0065] The carrier 16 is provided with at least eight receiving slots to hold at least eight batteries 17;

[0066] Each welding mechanism includes at least two welding laser output units 304.

[0067] Preferably, it also includes a material rack 2, with the feeding mechanism and the unloading mechanism located on the front and rear sides of the material rack 2 respectively; the front and rear ends of the material rack 2 are respectively provided with feeding X-axis guide rail 19 and unloading X-axis guide rail 18;

[0068] The Z-axis moving element 21 for unloading slides with the X-axis guide rail 18 via the X-axis slider for unloading.

[0069] The feeding Z-axis moving element 22 slides with the feeding X-axis guide rail 19 via the feeding X-axis slider.

[0070] Preferably, the laser cleaning mechanism includes a cleaning lifting unit 33, a cleaning transverse unit 34, and a cleaning laser output unit 35. The cleaning laser output unit 35 is disposed at the lifting end of the cleaning lifting unit 33, and the cleaning lifting unit 33 is disposed at the moving end of the cleaning transverse unit 34.

[0071] The cleaning reference platform includes a reference lifting unit 31 and a reference panel 32. The lifting end of the reference lifting unit 31 is connected to the reference panel 32, and the reference panel 32 has several reference channels 20.

[0072] Preferably, the nail-separating mechanism includes a vibratory plate 41;

[0073] The nail detection mechanism includes a nail-taking unit 42 and a nail-taking moving unit 43;

[0074] The nail feeding mechanism includes a nail suction unit 44, a nail suction X-axis moving unit 45, a nail suction Y-axis moving unit 46, and a nail suction Z-axis moving unit 47.

[0075] Preferably, the NG nail removal mechanism 10 includes a nail suction groove 101 and a plurality of nail suction pipes 102. One end of each of the plurality of nail suction pipes is connected to the nail suction groove 101, and the other end of each of the plurality of nail suction pipes is provided with a nail suction port.

[0076] Preferably, the testing mechanism includes a first testing unit 11 and a second testing unit 12;

[0077] The first detection unit 11 is a 3D detection unit;

[0078] The second detection unit 12 is a 2D detection unit.

[0079] Preferably, the feeding return line consists of two parallel X-axis conveyor lines 23 and two parallel Y-axis conveyor lines 24, with each end of the X-axis conveyor line 23 perpendicular to and connected to the nearest end of each of the two Y-axis conveyor lines 24.

[0080] Preferably, the pre-welding mechanism 5 includes a pre-welding reference unit 302, a pre-welding detection transverse movement unit 26, a pre-welding detection unit 27, a pre-welding laser output unit 28, a pre-welding X-axis movement unit 29, a pre-welding Y-axis movement unit 30, and a pre-welding Z-axis movement unit 301;

[0081] The welding mechanism includes a welding inspection unit 303, a welding laser output unit 304, a welding X-axis movement unit 305, a welding Y-axis movement unit 306, and a welding Z-axis movement unit 307.

[0082] A high-speed and high-efficiency sealing nail welding equipment and its application method include the following steps:

[0083] Step S1: A number of batteries 17 are picked up by the feeding mechanism and transferred to the carrier 16 of the feeding return line;

[0084] In step S2, several batteries 17 are transferred to the cleaning assembly 3 station. Based on the cleaning reference table, the liquid injection hole of the battery 17 is positioned, and the laser cleaning mechanism outputs laser to clean the impurities around the liquid injection hole of the battery 17.

[0085] Step S3: After the cleaning component 3 station completes its operation, several batteries 17 are transferred to the nailing component 4 station via the feeding return line. After the nailing detection mechanism positions the several batteries 17, the nailing mechanism accurately places the sealing nail into the corresponding liquid injection hole of the battery 17.

[0086] In step S4, after the nailing assembly 4 of several batteries 17 is completed, it is moved to the welding assembly station through the feeding return line. The pre-welding mechanism accurately positions the sealing nail of the liquid injection hole of the battery 17 through the pre-welding detection mechanism. After positioning, the pre-welding process is carried out through the pre-welding laser output unit 28.

[0087] In step S5, after several batteries 17 have completed their operation at the pre-welding station, several batteries 17 on the same carrier 16 are sequentially transported to the stations of the first welding mechanism 6, the second welding mechanism 7, the third welding mechanism 8, and the fourth welding mechanism 9 via the feeding return line. The first welding mechanism 6, the second welding mechanism 7, the third welding mechanism 8, and the fourth welding mechanism 9 sequentially weld the unwelded batteries 17 on the carrier 16. After the carrier 16 has undergone laser welding treatment by the fourth welding mechanism 9, all batteries 17 on the carrier 16 are welded, completing the welding process of all batteries 17 on one carrier 16 at the welding component station.

[0088] Step S6: After welding, several batteries 17 are transported to the NG nail removal mechanism 10 station via the feeding return line. The NG nail removal mechanism 10 will detect and collect several batteries 17 with NG sealing nails at the welding assembly station.

[0089] In step S7, after the battery 17 is completed at the NG nail rejection mechanism 10 station, several batteries 17 are sequentially conveyed to the 3D detection unit and 2D detection unit through the feeding return line. If they pass, the battery 17 is picked up by the unloading mechanism and placed in the qualified product area. If they fail, the unloading mechanism puts the unqualified battery 17 into the unqualified product area 15.

[0090] Working principle of the invention:

[0091] In this embodiment, the carrier 16, which can accommodate the battery 17, moves clockwise along the feeding return line. It is first conveyed to the feeding assembly via the feeding belt 1. The feeding assembly, cleaning assembly 3, nailing assembly 4, welding assembly, rejection assembly, and inspection assembly are arranged sequentially clockwise along the feeding return line. Therefore, the battery 17 on the carrier 16 is processed sequentially through the stations where the cleaning assembly 3, nailing assembly 4, welding assembly, rejection assembly, inspection assembly, and unloading assembly are located before being moved to the unloading belt 14 for output. In addition, a waiting area 13 and a defective product area 15 are provided. This embodiment may also include a qualified product area or directly send out qualified products, as not shown in the accompanying drawings. Furthermore, a transfer mechanism and a matching mechanism can be provided to facilitate the sorting of feeding or unloading.

[0092] The loading and unloading mechanisms are respectively located on the front and rear end faces of the material rack 2 to save space. The loading gripper 221 and unloading gripper 211 can use the same gripper structure. Clamping pads can be provided on the inner side of the gripper structure to prevent the battery 17 from slipping. The part of the gripper structure that contacts the battery 17 is made of non-metallic insulating material, and the opening and closing of the gripper is controlled by a solenoid valve assembly. In addition, the gripper structure can be equipped with a battery 17 positioning sensor to detect whether the battery 17 has been gripped. Both the loading and unloading mechanisms can move along the X-axis direction, i.e. Figure 1 The feeding mechanism can move horizontally left and right, and the unloading mechanism can move along the feeding X-axis guide rail 19.

[0093] In this embodiment, the feeding mechanism picks up the battery 17 and places it onto the carrier 16, which has eight receiving slots. The carrier 16, containing the eight batteries 17, first passes through the cleaning component station. The cleaning lifting unit 33 can drive the cleaning laser output unit 35 to move up and down. The cleaning laser output unit 35 includes a laser head, a galvanometer assembly, and other structures to ensure accurate laser output for cleaning. The cleaning lateral movement unit 34 can drive the cleaning lifting unit 33 and the cleaning laser output unit 35 to move laterally together to adjust the position for laser cleaning of the battery 17. The cleaning laser output unit 35 is located above the reference panel 32. The laser beam emitted by the cleaning laser output unit 35 passes through the reference channel 20 of the reference panel 32 to perform laser cleaning on the area of ​​the battery 17 that needs to be cleaned. The reference lifting unit 31 can drive the reference panel 32 to move up and down.

[0094] After cleaning, the battery 17 is processed at the nailing assembly 4. A vibratory feeder 41 outputs sealing nails. The nail-suction X-axis moving unit 45, Y-axis moving unit 46, and Z-axis moving unit 47 can respectively drive the nail-suction unit 44 to adjust its position along the horizontal, vertical, and longitudinal directions. The nailing imaging moving unit 43 can drive the nailing imaging unit 42 to move. The nailing imaging unit 42 can accurately position the sealing nails, detect their quality, and assess the nailing effect. The nailing imaging unit 42 can select a CCD imaging component. The nail-suction unit 44 can suck up the sealing nails and then nail them into the nail holes of the battery 17, completing the nailing process. The nail-suction unit 44 is not limited to sucking up nails; it also includes nailing, using gas to eject the sucked-up sealing nails.

[0095] After being nailed, the battery 17 undergoes spot welding via the pre-welding mechanism 5, such as... Figure 5 As shown, the pre-welding unit is equipped with a pre-welding reference unit 302, which assists the pre-welding laser output unit 28 in positioning and welding the battery 17. The pre-welding X-axis moving unit 29, pre-welding Y-axis moving unit 30, and pre-welding Z-axis moving unit 301 provide positional adjustments for the pre-welding laser output unit 28 in the X, Y, and Z axes. In this embodiment, the Z-axis direction is vertical, while the X and Y axes are horizontal (lateral and longitudinal). The pre-welding reference unit 302 is equipped with a pre-welding reference hole 25, through which the laser beam output from the welding laser output unit can pass to weld the battery 17. A waste recovery structure can be provided on one side of the pre-welding reference hole 25 in the pre-welding reference unit 302 to recover generated pollutants. Both the pre-welding laser output unit 28 and the laser welding output unit include structures such as a laser head and a galvanometer assembly. The pre-welding reference unit 302 is located above the carrier 16 and below the pre-welding laser output unit 28. In this embodiment, the pre-welding reference unit 302 is provided with multiple pre-welding reference holes 25, which reduces the process of positioning multiple batteries 17 separately, and multiple batteries 17 can be pre-welded at one time.

[0096] The NG nail rejection mechanism 10 uses a nail suction trough 101 to recycle unqualified sealing nails through multiple nail suction pipes 102. The NG nails referred to are unqualified sealing nails. One end of the nail suction pipe is provided with a nail suction port to absorb NG nails. The mechanism detects and recycles unqualified sealing nails on the welded battery 17.

[0097] In this embodiment, the welding X-axis moving unit 305, welding Y-axis moving unit 306, and welding Z-axis moving unit 307 can provide position adjustment for the welding laser output unit 304 in the X-axis, Y-axis, and Z-axis directions. Each welding mechanism in this embodiment ensures two welding laser output units 304, two welding Z-axis moving units 307, and two welding Y-axis moving units 306. Each welding Z-axis moving unit 307 is located on the moving end of the Y-axis moving unit, and the two welding Y-axis moving units 306 are located on the two moving ends of the welding X-axis moving unit 305, that is, they share the guide rail of the welding X-axis moving unit 305, saving overall space and allowing simultaneous welding of two batteries 17.

[0098] Finally, the testing agency performs 2D and 3D inspections on battery 17, enabling comprehensive and accurate acquisition of two-dimensional and three-dimensional information about the weld. This allows for precise detection of weld height, width, length, shape, volume, and other characteristics. Defective batteries 17 are then placed into the defective product area 15 via a feeding mechanism, while qualified batteries 17 are fed into the feeding conveyor belt 14 for output.

[0099] In this embodiment, the carrier 16 can move on the X-axis conveyor line 23 and the Y-axis conveyor line 24. In this embodiment, the X-axis conveyor line 23 and the Y-axis conveyor line 24 can be selected as a linear module. Multiple carriers 16 are detachably connected to each other via connecting groove A and connecting cam. In another embodiment, the X-axis conveyor line 23 can be a linear guide rail and a drive mechanism. The carrier can slide on the linear guide rail. The drive mechanism includes a drive lateral movement mechanism C, a telescopic mechanism D, and a drive cam E. Drive mechanisms are provided on the outer side of the X-axis conveyor line 23 to cause the carriers on the X-axis conveyor line to move along the conveying direction. When the drive mechanism drives one of the carriers 16 to move along the feed return line direction, it drives all the connected carriers 16 to move. To improve drive efficiency, two drive mechanisms are provided on the outer side of the X-axis conveyor line 23. The locking position at the bottom of the carrier 16 can meet the driving mechanism's turning condition for the carrier 16. After the drive lateral movement mechanism C drives the telescopic mechanism D and the drive cam E to the position corresponding to the locking position, the telescopic mechanism D drives the drive cam E to extend into and lock in the locking direction. At this time, the drive lateral movement mechanism C drives the telescopic mechanism D and the drive cam E to move along the feed return line direction, thereby turning the carrier 16 to move, that is, in the front and back direction of the feed return line. In this embodiment, the forward direction of the feeding return line is the direction from the feeding mechanism to the welding mechanism, i.e., the direction from the pre-welding mechanism to the welding mechanism. The drive cam E is designed to prevent collisions during the connection and locking process and to guide the cam into the locking position, ensuring the stability and accuracy of the drive. Similarly, the carriers 16 are connected to the connecting cam B via connecting groove A. The connecting cam B can slide horizontally out or into the connecting groove A in the direction perpendicular to the movement direction of the feeding return line, enabling easy disassembly and linkage of the carriers 16, greatly improving maintenance efficiency and reducing investment costs. The Y-axis conveyor line 24 is a linear module, which can separate the connected carriers 16 and match them to the carriers 16 of another X-axis conveyor line 23, thus forming a circular return, i.e., completing the mutual transfer between the two X-axis conveyor lines 23, such as... Figure 9 As shown.

[0100] The carrier 16 is provided with at least eight receiving slots to hold at least eight batteries 17. In this embodiment, there are eight receiving slots, which are respectively position 1, position 2, position 3, position 4, position 5, position 6, position 7 and position 8. The first welding mechanism 6 can weld the battery 17 in position 1 and position 2. The second welding mechanism 7 can weld the battery 17 in position 3 and position 4. The third welding mechanism 8 can weld the battery 17 in position 5 and position 6. The fourth welding mechanism 9 can weld the battery 17 in position 7 and position 8.

[0101] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A high speed and high efficiency seal pin welding apparatus, characterized by, It comprises: A feeding backflow line, a carrier for placing batteries is arranged on the feeding backflow line, and the carrier can move back and forth along the feeding backflow line; A feeding assembly, which comprises a feeding mechanism for feeding the batteries; the feeding mechanism comprises a feeding Z-axis moving element and a feeding clamp jaw; the moving end of the feeding Z-axis moving element drives the feeding clamp jaw to move along the Z-axis direction; A cleaning assembly, which comprises a cleaning reference table and a laser cleaning mechanism; the laser cleaning mechanism cleans the batteries according to the positioning of the cleaning reference table; A nail feeding assembly, which comprises a nail separating mechanism for outputting the sealing nails, a nail feeding detection mechanism and a nail feeding mechanism for feeding the nails to the batteries; A welding assembly, which comprises a pre-welding mechanism and a plurality of welding mechanisms; the plurality of welding mechanisms are located at the rear side of the pre-welding mechanism to weld the batteries after pre-welding; A rejection assembly, which comprises an NG nail rejection mechanism; A detection assembly, which comprises a detection mechanism for detecting the batteries; A discharging assembly, which comprises a discharging mechanism for discharging the batteries; the discharging mechanism comprises a discharging Z-axis moving element and a discharging clamp jaw; the moving end of the discharging Z-axis moving element drives the discharging clamp jaw to move along the Z-axis direction; The feeding assembly, the cleaning assembly, the nail feeding assembly, the welding assembly, the rejection assembly, the detection assembly and the discharging assembly are sequentially arranged along the feeding backflow line; The welding assembly comprises four welding mechanisms, namely a first welding mechanism, a second welding mechanism, a third welding mechanism and a fourth welding mechanism; The carrier is provided with at least eight accommodation grooves for clamping at least eight batteries; Each welding mechanism comprises at least two welding laser output units; The detection mechanism comprises a first detection unit and a second detection unit; The first detection unit is a 3D detection unit; The second detection unit is a 2D detection unit; The pre-welding mechanism comprises a pre-welding reference unit, a pre-welding detection horizontal moving unit, a pre-welding detection unit, a pre-welding laser output unit, a pre-welding X-axis moving unit, a pre-welding Y-axis moving unit and a pre-welding Z-axis moving unit; The welding mechanism comprises a welding detection unit, a welding laser output unit, a welding X-axis moving unit, a welding Y-axis moving unit and a welding Z-axis moving unit.

2. The high-speed and high-efficiency sealing nail welding equipment according to claim 1, further comprising a material rack, wherein the feeding mechanism and the discharging mechanism are respectively located at the front and rear sides of the material rack; the front and rear ends of the material rack are respectively provided with a feeding X-axis guide rail and a discharging X-axis guide rail; The discharging Z-axis moving element is in sliding cooperation with the discharging X-axis guide rail through a discharging X-axis sliding block; The feeding Z-axis moving element is in sliding cooperation with the feeding X-axis guide rail through a feeding X-axis sliding block.

3. The high-speed and high-efficiency sealing nail welding equipment according to claim 1, wherein the laser cleaning mechanism comprises a cleaning lifting unit, a cleaning horizontal moving unit and a cleaning laser output unit; the cleaning laser output unit is arranged at the lifting end of the cleaning lifting unit; and the cleaning lifting unit is arranged at the moving end of the cleaning horizontal moving unit. ​ ​ The cleaning reference table comprises a reference lifting unit and a reference panel, the lifting end of the reference lifting unit is connected with the reference panel, and the reference panel is provided with a plurality of reference channels.

4. The high-speed and high-efficiency sealing nail welding device according to claim 1, wherein the nail separating mechanism comprises a vibrating disc. The nail feeding detection mechanism comprises a nail feeding photographing unit and a nail feeding photographing moving unit. The nail feeding mechanism comprises a nail sucking unit, a nail sucking X-axis moving unit, a nail sucking Y-axis moving unit and a nail sucking Z-axis moving unit.

5. The high-speed and high-efficiency sealing nail welding device according to claim 1, wherein the NG nail removing mechanism comprises a nail sucking groove body and a plurality of nail sucking pipes, one end of each of the nail sucking pipes is connected with the nail sucking groove body, and the other end of each of the nail sucking pipes is provided with a nail sucking port.

6. The high-speed and high-efficiency sealing nail welding device according to claim 1, wherein the feeding and returning line is composed of two X-axis conveying lines and two Y-axis conveying lines arranged in parallel, and the two ends of each X-axis conveying line are connected with the two Y-axis conveying lines arranged in parallel. The method comprises the following steps: Step S1: a plurality of batteries are moved to the carriers on the feeding and returning line by the feeding mechanism; Step S2: the plurality of batteries are moved to the cleaning assembly station, positioned to the battery liquid injection holes based on the cleaning reference table, and the impurities around the battery liquid injection holes are cleaned by the laser cleaning mechanism; 7. The method of using a high speed, high efficiency seal stitch welding apparatus according to any one of claims 1-6, wherein, Step S3: after the cleaning assembly station is operated, the plurality of batteries are moved to the nail feeding assembly station by the feeding and returning line, the nail feeding detection mechanism is used to position the plurality of batteries, and the sealing nails are accurately placed in the corresponding battery liquid injection holes by the nail feeding mechanism; Step S4: after the nail feeding assembly station is operated, the plurality of batteries are moved to the welding assembly station by the feeding and returning line, the sealing nails in the battery liquid injection holes are accurately positioned by the pre-welding detection unit of the pre-welding mechanism, and the pre-welding treatment is performed by the pre-welding laser output unit after positioning; Step S5: after the pre-welding station is operated, the plurality of batteries on the same carrier are sequentially conveyed to the stations of the first welding mechanism, the second welding mechanism, the third welding mechanism and the fourth welding mechanism by the feeding and returning line, the first welding mechanism, the second welding mechanism, the third welding mechanism and the fourth welding mechanism are sequentially used to weld the batteries not welded on the carrier, and when the carrier passes through the fourth welding mechanism for laser welding treatment, all the batteries on the carrier are welded, and the welding of all the batteries on the carrier in the welding assembly station is completed; Step S6: the plurality of batteries after welding are conveyed to the NG nail removing mechanism station by the feeding and returning line, and the NG sealing nails in the plurality of batteries detected in the welding assembly station are collected by the NG nail removing mechanism. ​ ​ ​ Step S7, after the battery is completed in the NG nail removing mechanism station, a plurality of the battery is sequentially transported to the 3D detection unit and the 2D detection unit through the feeding return flow line for detection, if passing, the battery is taken to the passing product area through the discharging mechanism, if not passing, the battery is put into the not passing product area through the discharging mechanism.

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