Efficient welding circulation line

Abstract

The invention provides an efficient welding circulation line which comprises a feeding return line, a conveying return line, a conveying return line and a welding return line, the feeding return line is provided with a carrier used for containing a battery, and the carrier can circularly flow back and move along the feeding return line; each carrier is provided with a plurality of accommodating grooves for clamping batteries; the pre-welding mechanism is used for carrying out spot welding on the battery; the plurality of welding mechanisms are positioned on the rear side of the pre-welding mechanism and are used for welding and processing the pre-welded batteries; each welding mechanism comprises at least two welding laser output units so that at least two products can be welded and machined at the same time. The welding device is compact in layout, simultaneous positioning and pre-welding can be achieved, the multiple welding mechanisms conduct machining synchronously, the automation degree is high, and the working efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of battery processing, and in particular to a high-efficiency welding circulation line. Background Art

[0002] Most of the current sealing nail welding equipment on the market has a single machine efficiency of 12ppm, 15ppm, 17ppm or 24ppm. When 50ppm is required, most of them are achieved by splicing two machines. This method occupies a large area, has a small maintenance space, a high cost, requires a lot of maintenance personnel, and it is difficult to ensure work efficiency. Therefore, the existing sealing nail welding equipment has the following defects:

[0003] 1. Low degree of automation and low processing efficiency.

[0004] 2. It occupies a large space. Summary of the invention

[0005] In view of the deficiencies of the prior art, the purpose of the present invention is to provide an efficient welding cycle line, whose welding device has a compact layout, can be positioned and pre-welded together, and multiple welding mechanisms can be processed synchronously, with a high degree of automation and high work efficiency.

[0006] The embodiments of the present invention are implemented by the following technical solutions:

[0007] An efficient welding cycle line, including:

[0008] A feeding return line, on which a carrier for placing batteries is arranged, and the carrier can move along the feeding return line in a cyclical reflux;

[0009] Each of the carriers is provided with a plurality of accommodating slots for clamping batteries;

[0010] A pre-welding mechanism for spot welding the battery;

[0011] A plurality of welding mechanisms, wherein the plurality of welding mechanisms are located at the rear side of the pre-welding mechanism to perform welding processing on the pre-welded battery;

[0012] Each of the welding mechanisms includes at least two welding laser output units to perform welding processes on at least two products simultaneously.

[0013] According to a preferred embodiment, the pre-welding mechanism includes a pre-welding reference unit, a pre-welding detection lateral movement 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;

[0014] 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.

[0015] According to a preferred embodiment, the number of the welding mechanisms is four, namely a first welding mechanism, a second welding mechanism, a third welding mechanism and a fourth welding mechanism;

[0016] Each of the carriers is provided with eight receiving slots for holding eight batteries;

[0017] The first welding mechanism, the second welding mechanism, the third welding mechanism and the fourth welding mechanism can process the batteries on the carrier in sequence.

[0018] According to a preferred embodiment, the feeding return line is composed of two X-axis conveying lines arranged in parallel to each other and two Y-axis conveying lines arranged in parallel to each other, and the two ends of each X-axis conveying line are respectively perpendicular to and connected to one end close to the two Y-axis conveying lines.

[0019] According to a preferred embodiment, a driving mechanism is provided on the outer side of the X-axis conveyor line to cause the carrier on the X-axis conveyor line to move along the X-axis direction;

[0020] The driving mechanism is provided with a driving lateral movement mechanism, a telescopic mechanism and a driving cam;

[0021] The bottom of the carrier is provided with a latch adapted to the driving cam;

[0022] Each of the carriers is provided with a connecting groove and a connecting cam at both ends, and two adjacent carriers are connected via the connecting groove and the connecting cam;

[0023] The Y-axis conveyor line is a linear module used to switch the carrier between the two X-axis conveyor lines.

[0024] According to a preferred embodiment, it also includes a material rack, a material unloading mechanism and a material loading mechanism; the material loading mechanism includes a material loading Z-axis moving element and a material loading clamp; the material unloading mechanism includes a material unloading Z-axis moving element and a material unloading clamp; the material loading mechanism and the material unloading 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 material loading X-axis guide rail and a material unloading X-axis guide rail;

[0025] The blanking Z-axis moving element is slidably matched with the blanking X-axis guide rail via the blanking X-axis slider;

[0026] The feeding Z-axis moving element is slidably matched with the feeding X-axis guide rail through a feeding X-axis sliding block.

[0027] According to a preferred embodiment, it also includes a nailing assembly located at the front side of the pre-welding assembly, the nailing assembly includes a nailing mechanism for outputting sealing nails, a nailing detection mechanism, and a nailing mechanism for nailing the battery;

[0028] The nail separation mechanism includes a vibration plate;

[0029] The nailing detection mechanism includes a nailing photographing unit and a nailing photographing moving unit;

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

[0031] According to a preferred embodiment, a cleaning component is further included at the front side of the nail assembly, the cleaning component includes a cleaning reference platform and a laser cleaning mechanism; the laser cleaning mechanism includes a cleaning lifting unit, a cleaning lateral movement 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 lateral movement unit;

[0032] The cleaning reference platform comprises a reference lifting unit and a reference panel. The lifting end of the reference lifting unit is connected to the reference panel. The reference panel is provided with a plurality of reference channels.

[0033] According to a preferred embodiment, it further comprises a rejecting assembly located at the rear side of the welding assembly, the rejecting assembly comprising an NG nail rejecting mechanism for rejecting NG nails;

[0034] The NG nail removal mechanism comprises a nail suction trough body and a plurality of nail suction pipes, one end of each of the nail suction pipes is connected to the nail suction trough body, and the other end of each of the nail suction pipes is provided with a nail suction port.

[0035] According to a preferred embodiment, it further includes a detection mechanism located at the rear side of the rejection component, and the detection mechanism includes a first detection unit and a second detection unit;

[0036] The first detection unit is a 3D detection unit;

[0037] The second detection unit is a 2D detection unit.

[0038] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0039] The welding device of the present invention has a compact layout, and the carrier can accommodate multiple batteries for movement and transportation along the feeding return line. Multiple carriers can be moved at the same time, and the pre-welding mechanism can position and pre-weld multiple batteries on the carrier together. Multiple batteries are also processed synchronously by multiple welding mechanisms. Batteries on the same carrier or different carriers can be processed synchronously, saving welding interval time, with a high degree of automation and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 A schematic diagram of a top view of an efficient welding cycle line provided by an embodiment of the present invention;

[0042] Figure 2 A schematic diagram of the structure of a loading assembly and a unloading assembly provided in an embodiment of the present invention;

[0043] Figure 3 A schematic diagram of the structure of a cleaning component provided by an embodiment of the present invention;

[0044] Figure 4 A schematic diagram of the structure of a nailing assembly provided in an embodiment of the present invention;

[0045] Figure 5 A schematic structural diagram of a pre-welding mechanism provided in an embodiment of the present invention;

[0046] Figure 6 A schematic structural diagram of a welding mechanism provided by an embodiment of the present invention;

[0047] Figure 7 A schematic diagram of the structure of a rejection component provided by an embodiment of the present invention;

[0048] Figure 8 A schematic diagram of the structure of a feeding return line provided by an embodiment of the present invention;

[0049] Fig. 9 This is a schematic diagram of the front structural view of the driving mechanism provided in an embodiment of the present invention.

[0050] Icons: 1. Loading belt; 2. Material rack; 21. Unloading Z-axis moving element; 211. Unloading clamp; 22. Loading Z-axis moving element; 221. Loading clamp; 3. Cleaning component; 31. Reference lifting unit; 32. Reference panel; 33. Cleaning lifting unit; 34. Cleaning lateral movement unit; 35. Cleaning laser output unit; 4. Nail assembly; 41. Vibrating plate; 42. Nail taking unit; 43. Nail taking 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 removal mechanism; 101. Nail suction tank; 102. Nail suction pipeline; 11. First detection unit; 12. Second detection unit Element; 13. Area for loading; 14. Unloading belt; 15. Unqualified product area; 16. Carrier; 17. Battery; 18. Unloading X-axis guide rail; 19. Loading X-axis guide rail; 20. Reference channel; 23. X-axis conveyor line; 24. Y-axis conveyor line; 25. Pre-welding reference hole; 26. Pre-welding detection transverse movement unit; 27. Pre-welding detection unit; 28. Pre-welding laser output unit; 29. ​​Pre-welding X-axis moving unit; 30. Pre-welding Y-axis moving unit; 301. Pre-welding Z-axis moving unit; 302. Pre-welding reference unit; 303. Welding detection unit; 304. Welding laser output unit; 305. Welding X-axis moving unit; 306. Welding Y-axis moving unit; 307. Welding Z-axis moving unit; 36. Connecting groove; 37. Connecting cam; 38. Driving lateral movement mechanism; 39. Telescopic mechanism; 40. Driving cam. DETAILED DESCRIPTION

[0051] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0052] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0054] Example

[0055] Please refer to Figures 1 to 9 , an efficient welding circulation line, comprising: a feeding reflow line, on which a carrier 16 for placing a battery 17 is arranged, and the carrier 16 can move along the feeding reflow line in a circulation reflow; each carrier 16 is provided with a plurality of accommodating grooves for clamping the battery 17; a pre-welding mechanism 5, for spot welding the battery 17; a plurality of welding mechanisms, and the plurality of welding mechanisms are located at the rear side of the pre-welding mechanism 5, so as to weld the pre-welded battery 17; each welding mechanism comprises at least two welding laser output units 304, so as to weld at least two products at the same time.

[0056] 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 moving unit 29, a pre-welding Y-axis moving unit 30, and a pre-welding Z-axis moving unit 301;

[0057] The welding mechanism includes a welding detection unit 303 , a welding laser output unit 304 , a welding X-axis moving unit 305 , a welding Y-axis moving unit 306 , and a welding Z-axis moving unit 307 .

[0058] Preferably, the number of welding mechanisms is four, namely a first welding mechanism 6, a second welding mechanism 7, a third welding mechanism 8 and a fourth welding mechanism 9;

[0059] Each carrier 16 is provided with eight receiving slots to hold eight batteries 17;

[0060] The first welding mechanism 6 , the second welding mechanism 7 , the third welding mechanism 8 and the fourth welding mechanism 9 can process the battery 17 on the carrier 16 in sequence.

[0061] Preferably, the feeding return line is composed of two X-axis conveying lines 23 arranged in parallel to each other and two Y-axis conveying lines 24 arranged in parallel to each other, and the two ends of each X-axis conveying line 23 are respectively perpendicular to and connected to the ends close to the two Y-axis conveying lines 24.

[0062] Preferably, a driving mechanism is provided on the outer side of the X-axis conveyor line 23 to enable the carrier 16 on the X-axis conveyor line 23 to move along the X-axis direction;

[0063] The driving mechanism is provided with a driving transverse movement mechanism 38, a telescopic mechanism 39 and a driving cam 40;

[0064] The bottom of the carrier 16 is provided with a latch adapted to the driving cam 40;

[0065] Each carrier 16 is provided with a connecting groove 36 and a connecting cam 37 at both ends, and two adjacent carriers 16 are connected via the connecting groove 36 and the connecting cam 37;

[0066] The Y-axis conveyor line 24 is a linear module for switching the carrier 16 between the two X-axis conveyor lines 23 .

[0067] Preferably, it also includes a material rack 2, a material unloading mechanism and a material loading mechanism; the material loading mechanism includes a material loading Z-axis moving element 22 and a material loading clamp 221; the material unloading mechanism includes a material unloading Z-axis moving element 21 and a material unloading clamp 211; the material loading mechanism and the material unloading mechanism are respectively located at the front and rear sides of the material rack 2; the front and rear ends of the material rack 2 are respectively provided with a material loading X-axis guide rail 19 and a material unloading X-axis guide rail 18;

[0068] The blanking Z-axis moving element 21 slides with the blanking X-axis guide rail 18 through the blanking X-axis slider;

[0069] The loading Z-axis moving element 22 is slidably matched with the loading X-axis guide rail 19 through the loading X-axis slider.

[0070] Preferably, it also includes a nailing assembly 4 located at the front side of the pre-welding assembly, and the nailing assembly 4 includes a nailing mechanism for outputting sealing nails, a nailing detection mechanism, and a nailing mechanism for nailing the battery 17;

[0071] The nail separation mechanism includes a vibration plate 41;

[0072] The nailing detection mechanism includes a nailing photographing unit 42 and a nailing photographing moving unit 43;

[0073] The nailing 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 .

[0074] Preferably, a cleaning assembly 3 is further included, which is located at the front side of the nail assembly 4. The cleaning assembly 3 includes a cleaning reference platform and a laser cleaning mechanism. The laser cleaning mechanism includes a cleaning lifting unit 33, a cleaning lateral movement unit 34 and a cleaning laser output unit 35. The cleaning laser output unit 35 is arranged at the lifting end of the cleaning lifting unit 33, and the cleaning lifting unit 33 is arranged at the moving end of the cleaning lateral movement unit 34.

[0075] The cleaning reference platform comprises 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 . The reference panel 32 is provided with a plurality of reference channels 20 .

[0076] Preferably, it further comprises a rejecting assembly located at the rear side of the welding assembly, the rejecting assembly comprising an NG nail rejecting mechanism 10 for rejecting NG nails;

[0077] The NG nail removing mechanism 10 comprises a nail suction trough 101 and a plurality of nail suction pipes 102 . One end of each of the nail suction pipes is connected to the nail suction trough 101 , and the other end of each of the nail suction pipes is provided with a nail suction port.

[0078] Preferably, it also includes a detection mechanism located at the rear side of the rejection component, and the detection mechanism includes a first detection unit 11 and a second detection unit 12;

[0079] The first detection unit 11 is a 3D detection unit;

[0080] The second detection unit 12 is a 2D detection unit.

[0081] An efficient welding cycle line application method comprises the following steps:

[0082] Step S1, a plurality of batteries 17 are picked up and transferred to a carrier 16 of a feeding return line by a loading mechanism;

[0083] Step S2, a plurality of batteries 17 are transferred to the cleaning assembly 3 station, and the battery 17 injection hole is located on the basis of the cleaning reference table, and the laser cleaning mechanism outputs laser to clean the impurities around the battery 17 injection hole;

[0084] Step S3, after the cleaning component 3 is completed, the plurality of batteries 17 are transferred to the nailing component 4 through the feeding return line, and the nailing detection mechanism positions the plurality of batteries 17 and then accurately places the sealing nails into the injection holes of the corresponding batteries 17 through the nailing mechanism;

[0085] Step S4, after the nailing assembly 4 station of several batteries 17 is completed, they are transferred to the welding assembly station through the feeding return line, and the pre-welding mechanism accurately positions the sealing nail of the battery 17 injection hole through the pre-welding detection mechanism, and after positioning, the pre-welding laser output unit 28 performs pre-welding processing;

[0086] Step S5, after the pre-welding station of the plurality of batteries 17 is completed, the plurality of batteries 17 of 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 through the feeding return line, and 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, and after the carrier 16 is laser welded by the fourth welding mechanism 9, all the batteries 17 on the carrier 16 are welded, and the welding process of all the batteries 17 on one carrier 16 at the welding assembly station is completed;

[0087] Step S6, after welding, several batteries 17 are transported to the station of the NG nail removal mechanism 10 through the feeding return line, and the NG nail removal mechanism 10 detects several batteries 17 with NG sealing nails at the welding assembly station and collects them;

[0088] Step S7, after the battery 17 is completed at the NG nail removal mechanism 10 station, several batteries 17 are sequentially transported to the 3D inspection unit and the 2D inspection unit through the feeding return line. If qualified, the battery 17 is taken to the qualified product area through the unloading mechanism. If unqualified, the unqualified battery 17 is taken to the unqualified product area 15 through the unloading mechanism.

[0089] In this embodiment, the carrier 16 that can accommodate the battery 17 moves clockwise along the feeding return line, and is first transported to the side of the feeding assembly through the feeding belt 1. The feeding assembly, cleaning assembly 3, nailing assembly 4, welding assembly, rejection assembly, and detection assembly are arranged in sequence clockwise along the feeding return line. Therefore, the battery 17 on the carrier 16 is processed in sequence by the cleaning assembly 3, nailing assembly 4, welding assembly, rejection assembly, detection assembly, and the workstation where the unloading assembly is located, and then moved to the unloading belt 14 for output. In addition, there are also a waiting loading area 13 and a failed product area 15. In this embodiment, a qualified product area can also be set or qualified products can be directly sent out, which is not shown in the drawings. Further, a transfer mechanism and a matching mechanism can be set to help with the classification of loading or unloading.

[0090] The loading mechanism and unloading mechanism are respectively arranged on the front and rear end surfaces of the material rack 2 to save space. The loading jaw 221 and the unloading jaw 211 can select the same jaw structure. A clamping pad can be arranged on the inner side of the jaw structure to prevent the battery 17 from slipping. The part of the jaw structure that contacts the battery 17 is made of non-metallic insulating material, and the opening and closing of the jaw is controlled by the solenoid valve assembly. In addition, the jaw structure can be provided with a battery 17 in place sensor to detect whether the battery 17 is grasped. Both the loading mechanism and the unloading mechanism can move along the X-axis direction, that is, Figure 1 The loading mechanism can move along the loading X-axis guide rail 19, and the unloading mechanism can move along the unloading X-axis guide rail 18.

[0091] In this embodiment, the loading mechanism grabs the battery 17 onto the carrier 16 provided with eight receiving slots. The carrier 16 containing 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 cleaning. The cleaning transverse 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 position 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.

[0092] The cleaned battery 17 is processed by the nailing assembly 4. The vibration plate 41 is used to output the sealing nail. The nail suction X-axis moving unit 45, the nail suction Y-axis moving unit 46, and the nail suction Z-axis moving unit 47 can respectively drive the nail suction unit 44 to adjust the position along the horizontal, longitudinal and vertical directions. The nailing photographing moving unit 43 can drive the nailing photographing unit 42 to move. The nailing photographing unit 42 can accurately locate the sealing nail, detect the quality of the sealing nail and the nailing effect. The nailing photographing unit 42 can select the CCD photographing component. The nail suction unit 44 can suck the sealing nail and nail the nail hole of the battery 17 to complete the nailing process. The nail suction unit 44 is not limited to sucking nails, but also includes nailing, and the sucked sealing nails are ejected by gas.

[0093] The battery 17 after nailing is spot welded by the pre-welding mechanism 5. Figure 5 As shown, the pre-welding unit is provided with a pre-welding reference unit 302, which can assist the pre-welding laser output unit 28 in positioning and welding the battery 17, and the pre-welding X-axis moving unit 29, the pre-welding Y-axis moving unit 30, and the pre-welding Z-axis moving unit 301 can provide the pre-welding laser output unit 28 with position adjustment in the X-axis direction, the Y-axis direction, and the Z-axis direction. In this embodiment, the Z-axis direction is the vertical direction, and the X-axis direction and the Y-axis direction are horizontal and longitudinal. The pre-welding reference unit 302 is provided with a pre-welding reference hole 25, and the laser beam output by the welding laser output unit can pass through the pre-welding reference hole 25 to weld the battery 17, wherein a waste recovery structure can be provided on one side of the pre-welding reference hole 25 in the pre-welding reference unit 302, and the generated polluted gas can be recovered. The pre-welding laser output unit 28 and the laser welding output unit both include structures such as a laser head and a galvanometer assembly. The pre-welding reference unit 302 is located above the carrier 16, and the pre-welding reference unit 302 is located below the pre-welding laser output unit 28. In this embodiment, the pre-welding reference unit 302 is provided with a plurality of pre-welding reference holes 25, which reduces the process of separately positioning a plurality of batteries 17, and allows positioning and pre-welding of a plurality of batteries 17 at one time.

[0094] The nail suction groove 101 of the NG nail removal mechanism 10 recycles unqualified sealing nails through multiple nail suction pipes 102. The NG nails referred to are unqualified sealing nails. A nail suction port is provided at one end of the nail suction pipe to absorb NG nails, and detect unqualified sealing nails and recycle the sealing nails on the welded battery 17.

[0095] In this embodiment, the welding X-axis moving unit 305, the welding Y-axis moving unit 306, and the welding Z-axis moving unit 307 can provide position adjustment for the welding laser output unit 304 in the X-axis direction, the Y-axis direction, and the Z-axis direction. 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 arranged on the moving end of the Y-axis moving unit, and the two welding Y-axis moving units 306 are arranged on the two moving ends of the welding X-axis moving unit 305, that is, the guide rail of the welding X-axis moving unit 305 is shared, which saves overall space and can weld two batteries 17 at the same time.

[0096] Finally, the testing mechanism can perform 2D and 3D testing on the battery 17 to perform all-round testing on the battery 17, and can fully and accurately obtain the two-dimensional and three-dimensional information of the weld, and can accurately test the height, width, length, shape, volume and other characteristics of the weld. The unqualified battery 17 is placed in the unqualified product area 15 through the unloading mechanism, and the qualified battery 17 can be placed in the unloading belt 14 for output.

[0097] The carrier 16 is provided with at least eight accommodating slots to clamp at least eight batteries 17. In the present embodiment, there are eight accommodating slots, which are respectively position No. 1, position No. 2, position No. 3, position No. 4, position No. 5, position No. 6, position No. 7 and position No. 8. The first welding mechanism 6 can weld the battery 17 at position No. 1 and the battery 17 at position No. 2, the second welding mechanism 7 can weld the battery 17 at position No. 3 and the battery 17 at position No. 4, the third welding mechanism 8 can weld the battery 17 at position No. 5 and the battery 17 at position No. 6, and the fourth welding mechanism 9 can weld the battery 17 at position No. 7 and the battery 17 at position No. 8.

[0098] In this embodiment, multiple carriers 16 can be connected to the connecting cam 37 through the connecting groove 36. Therefore, when the driving mechanism drives one of the carriers 16 to move along the feeding return line, all the connected carriers 16 are driven to move. In order to improve the driving efficiency, two driving mechanisms are arranged on the outer side of the X-axis conveyor line 23. The clamping position arranged at the bottom of the carrier 16 can meet the conditions for the driving mechanism to move the carrier 16. After the lateral moving mechanism 38 is driven to drive the telescopic mechanism 39 and the driving cam 40 to move to the position corresponding to the clamping position, the telescopic mechanism 39 drives the driving cam 40 to extend and clamp in the clamping direction. At this time, the lateral moving mechanism 38 is driven to drive the telescopic mechanism 39 and the driving cam 40 to move along the feeding return line, thereby moving the carrier 16, that is, the front and rear direction of the feeding return line. In this embodiment, the front direction of the feeding return line is the direction of the feeding mechanism toward the welding mechanism, that is, the direction of the pre-welding mechanism 5 toward the welding mechanism. The driving cam 40 can avoid collisions during the connection clamping process and has the function of guiding the sliding into the clamping position, thereby ensuring the stability and accuracy of the drive. Similarly, the carriers 16 are connected to the connecting cam 37 through the connecting groove 36, and the connecting cam 37 can slide out or slide into the connecting groove 36 horizontally in the vertical direction of the moving direction of the feeding return line, so as to realize the convenient disassembly and linkage of the connected carriers 16, greatly improving the maintenance efficiency and reducing the investment cost. 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, so as to form a circular reflux, that is, to complete the mutual transfer of the two X-axis conveyor lines 23. In addition, in this embodiment, a linear module can also be used alone, that is, both the X-axis conveyor line 23 and the Y-axis conveyor line 24 adopt a linear module. Specifically, the X-axis conveyor line 23 can select a linear guide and a drive mechanism, and the carriers 16 can slide on the linear guide.

[0099] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. An efficient welding cycle line, characterized in that: include: A feeding return line, on which a carrier for placing batteries is arranged, and the carrier can move along the feeding return line in a cyclical reflux; Each of the carriers is provided with a plurality of accommodating slots for clamping batteries; A pre-welding mechanism for spot welding the battery; A plurality of welding mechanisms, wherein the plurality of welding mechanisms are located at the rear side of the pre-welding mechanism to perform welding processing on the pre-welded battery; Each of the welding mechanisms includes at least two welding laser output units to perform welding processes on at least two products simultaneously.

2. The efficient welding cycle line according to claim 1 is characterized in that: The pre-welding mechanism includes a pre-welding reference unit, a pre-welding detection lateral movement 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.

3. The efficient welding cycle line according to claim 2 is characterized in that: The number of the welding mechanisms is four, namely a first welding mechanism, a second welding mechanism, a third welding mechanism and a fourth welding mechanism; Each of the carriers is provided with eight receiving slots for holding eight batteries; The first welding mechanism, the second welding mechanism, the third welding mechanism and the fourth welding mechanism can process the batteries on the carrier in sequence.

4. The efficient welding cycle line according to claim 1 is characterized in that: The feeding return line is composed of two X-axis conveying lines arranged in parallel to each other and two Y-axis conveying lines arranged in parallel to each other. The two ends of each X-axis conveying line are respectively perpendicular to and connected to one end close to the two Y-axis conveying lines.

5. The efficient welding cycle line according to claim 4, characterized in that: A driving mechanism is provided on the outer side of the X-axis conveyor line to enable the carrier on the X-axis conveyor line to move along the X-axis direction; The driving mechanism is provided with a driving lateral movement mechanism, a telescopic mechanism and a driving cam; The bottom of the carrier is provided with a latch adapted to the driving cam; Each of the carriers is provided with a connecting groove and a connecting cam at both ends, and two adjacent carriers are connected via the connecting groove and the connecting cam; The Y-axis conveyor line is a linear module used to switch the carrier between the two X-axis conveyor lines.

6. The efficient welding cycle line according to claim 1, characterized in that: It also includes a material rack, a material unloading mechanism and a material loading mechanism; the material loading mechanism includes a material loading Z-axis moving element and a material loading clamp; the material unloading mechanism includes a material unloading Z-axis moving element and a material unloading clamp; the material loading mechanism and the material unloading 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 material loading X-axis guide rail and a material unloading X-axis guide rail; The blanking Z-axis moving element is slidably matched with the blanking X-axis guide rail via the blanking X-axis slider; The feeding Z-axis moving element is slidably matched with the feeding X-axis guide rail through a feeding X-axis sliding block.

7. The efficient welding cycle line according to claim 1, characterized in that: It also includes a nailing assembly located at the front side of the pre-welding assembly, the nailing assembly includes a nailing mechanism for outputting sealing nails, a nailing detection mechanism, and a nailing mechanism for nailing the battery; The nail separation mechanism includes a vibration plate; The nailing detection mechanism includes a nailing photographing unit and a nailing photographing moving unit; The nailing mechanism includes a nail suction unit, a nail suction X-axis moving unit, a nail suction Y-axis moving unit, and a nail suction Z-axis moving unit.

8. The efficient welding cycle line according to claim 7, characterized in that: It also includes a cleaning component located at the front side of the nail assembly, the cleaning component includes a cleaning reference platform and a laser cleaning mechanism; the laser cleaning mechanism includes a cleaning lifting unit, a cleaning lateral movement 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 lateral movement unit; The cleaning reference platform comprises a reference lifting unit and a reference panel. The lifting end of the reference lifting unit is connected to the reference panel. The reference panel is provided with a plurality of reference channels.

9. The efficient welding cycle line according to claim 1, characterized in that: It also includes a rejecting assembly located at the rear side of the welding assembly, and the rejecting assembly includes an NG nail rejecting mechanism for rejecting NG nails; The NG nail removal mechanism comprises a nail suction trough body and a plurality of nail suction pipes, one end of each of the nail suction pipes is connected to the nail suction trough body, and the other end of each of the nail suction pipes is provided with a nail suction port.

10. The efficient welding cycle line according to claim 9, characterized in that: It also includes a detection mechanism located at the rear side of the rejection component, and the detection mechanism includes 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.

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