Laminated lithium battery tab welding equipment

Abstract

The utility model provides laminated lithium battery tab welding equipment which comprises a rack, a feeding mechanism, a discharging mechanism and a return line, and welding parts are arranged on the side edge of the return line and used for welding a positive pole tab and a negative pole tab of a battery respectively; a position correcting mechanism and a transferring mechanism are arranged between the feeding mechanism and the return line, the position correcting mechanism is used for adjusting the spatial position of a battery, and the transferring mechanism is used for transferring the battery located on the position correcting mechanism to the return line; the welding part comprises a welding unit, a cutting unit and a rubberizing unit which are sequentially arranged in the conveying direction of the return line. The length direction of the battery is defined as a first direction, the width direction of the battery is defined as a second direction, the thickness direction of the battery is defined as a longitudinal direction, and the first direction, the second direction and the longitudinal direction are perpendicular to one another. According to the utility model, the spatial position of the battery can be corrected before the battery is fed to a welding station, so that the assembly precision of the battery at the welding station is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery technical field especially relates to a kind of laminated lithium battery tab welding equipment. BACKGROUND

[0002] Lithium battery needs to be shaped and welded after the tab is completed, in the existing welding equipment, the battery after tabbing is transferred to the welding equipment by tray mechanism, and then transferred to the welding equipment by mechanical gripper for welding, in this process, the battery is transported several times, and the battery tray mechanism is an independent device separated from the welding equipment, so there is a problem of poor assembly precision of the battery after loading on the mechanical gripper to the welding equipment, which affects the tab welding yield. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model aims to provide a kind of laminated lithium battery tab welding equipment, which corrects the spatial position of the battery before loading to the welding station, ensuring the assembly precision of the battery at the welding station.

[0004] The embodiments of the utility model are realized by the following technical solutions:

[0005] A kind of laminated lithium battery tab welding equipment, including rack, feeding mechanism, discharging structure and reflow line, the reflow line side is provided with welding part, respectively for welding the positive tab and negative tab of battery;Positioning mechanism and transfer mechanism are arranged between the feeding mechanism and the reflow line, the positioning mechanism is used to adjust the spatial position of battery, and the transfer mechanism is used to transfer the battery in the positioning mechanism to the reflow line;The welding part includes welding unit, cutting unit and rubberizing unit arranged in sequence along the conveying direction of reflow line;The length direction of battery is defined as first direction, the width direction of battery is second direction, and the thickness direction of battery is longitudinal direction, and the first direction, the second direction and the longitudinal direction are perpendicular to each other.

[0006] According to a preferred embodiment, the positioning mechanism includes a first top plate adjustably arranged on the rack;Dynamic beam and fixed beam are arranged on the first top plate, the dynamic beam is adjustably arranged on one side of the first top plate in the second direction, the fixed beam is fixedly arranged on the other side of the first top plate in the second direction, the dynamic beam can approach or move away from the fixed beam, and the first top plate can move along the first direction relative to the rack;A plurality of dynamic positioning blocks are arranged on the dynamic beam along the first direction;A plurality of static positioning blocks are arranged on the fixed beam along the first direction.

[0007] According to a preferred embodiment, the aligning mechanism further comprises a first base plate, a first bottom plate is adjustably assembled on the first base plate along the first direction, the first bottom plate is between the first top plate and the first base plate, and the first bottom plate is fixedly connected with the first top plate; a first driving mechanism is arranged on the side of the first top plate facing the first bottom plate, a first extension plate is assembled on the first driving mechanism, the first extension plate is arranged to extend along the first direction, and the first driving mechanism drives the first extension plate to move along the first direction; a first driving chute is arranged on the first extension plate, and a first driving roller is slidably or rollably assembled on the moving beam.

[0008] According to a preferred embodiment, a clamp for fixing the battery is arranged on the return line, the clamp comprises a second base plate, a longitudinal positioning block, a first reference block, a first pressing block and a second pressing block are arranged on the upper surface of the second base plate, and the longitudinal positioning block is used for supporting the battery; the first reference block is on one side of the longitudinal positioning block in the second direction, the first pressing block is on the other side of the longitudinal positioning block in the second direction, and the first pressing block can move towards or away from the first reference block along the second direction; the second pressing block is arranged on both sides of the longitudinal positioning block in the first direction, and the second pressing block can move towards or away from the longitudinal positioning block along the first direction.

[0009] According to a preferred embodiment, an integrated beam is slidably arranged on the second base plate, and the first pressing block is arranged on the integrated beam; a reset spring is arranged between the integrated beam and the second base plate, and the reset spring acts on the integrated beam to make the integrated beam always have a movement trend towards the longitudinal positioning block along the second direction.

[0010] According to a preferred embodiment, the second pressing block and the first pressing block can synchronously move towards or away from the longitudinal positioning block.

[0011] According to a preferred embodiment, the transfer mechanism comprises a third base plate, a clamping jaw for grabbing the battery and an unlocking rod for unlocking the clamp are arranged on the third base plate; the clamp further comprises an unlocking wheel, the unlocking wheel is fixedly connected with the first pressing block and / or the second pressing block, an unlocking slope is arranged on the unlocking rod and matched with the unlocking wheel, and when the unlocking rod moves downward along the longitudinal direction, the unlocking wheel slides or rolls relative to the unlocking slope to make the first pressing block and the second pressing block fixedly move away from the longitudinal positioning block.

[0012] According to a preferred embodiment, the welding unit comprises a first support, a second support and a welding machine, wherein the first support is provided with an upper pressing plate adjustable in the longitudinal direction, and the upper pressing plate is provided with an upper pressing head; the second support is provided with a lower pressing head corresponding to the upper pressing head; the battery is below the upper pressing plate, and the tab is between the upper pressing head and the lower pressing head; the welding machine comprises an upper welding head and a lower welding head, and the tab is between the upper welding head and the lower welding head; and the upper welding head and the lower welding head are both provided with a dust suction pipe.

[0013] According to a preferred embodiment, the cutting unit comprises a cutter adjustably arranged on the rack, wherein the cutter comprises a driving plate and a fixed plate arranged in the longitudinal direction, the fixed plate is provided with a plurality of first guide columns arranged in the longitudinal direction, the driving plate is in sliding connection with the first guide columns, the driving plate is provided with an upper cutter head, the fixed plate is provided with a lower cutter head matched with the upper cutter head, the fixed plate is provided with a material leakage hole penetrating through the fixed plate, and the material leakage hole is inside the lower cutter head; and the cutter further comprises a pressing plate provided with a second guide column extending in the longitudinal direction, the second guide column is in sliding embedding in the driving plate, the pressing plate is outside the upper cutter head, a buffer spring is arranged between the pressing plate and the driving plate, and the lower cutter head is on the movement path of the pressing plate in the longitudinal direction.

[0014] According to a preferred embodiment, the gluing unit comprises a glue preparation assembly and a gluing assembly arranged on the rack, wherein the gluing assembly comprises a gluing head, the gluing head comprises a main suction head, a secondary suction head is slidingly assembled on the main suction head, the secondary suction head can slide in the longitudinal direction relative to the main suction head, a damping spring is arranged between the secondary suction head and the main suction head, and the damping spring acts on the secondary suction head so that the secondary suction head has a movement trend towards the battery.

[0015] The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0016] The alignment mechanism of the utility model can correct the spatial position of the battery before the battery is fed to the reflow line through the transfer mechanism, which is beneficial to ensuring the feeding accuracy and further beneficial to ensuring the subsequent machining accuracy. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0018] Figure 1The utility model provides a three -dimensional structure schematic diagram of welding equipment provided for the embodiment of the utility model;

[0019] Figure 2 The utility model provides a top view structure schematic diagram of welding equipment provided for the embodiment of the utility model;

[0020] Figure 3 The utility model provides a three -dimensional structure schematic diagram of positive mechanism provided for the embodiment of the utility model;

[0021] Figure 4 The utility model provides a first top plate and first extension plate assembly structure schematic diagram provided for the embodiment of the utility model;

[0022] Figure 5 The utility model provides a top view structure schematic diagram of return line provided for the embodiment of the utility model;

[0023] Figure 6 The utility model provides a first three -dimensional structure schematic diagram of clamp provided for the embodiment of the utility model;

[0024] Figure 7 The utility model provides a second three -dimensional structure schematic diagram of clamp provided for the embodiment of the utility model;

[0025] Figure 8 The utility model provides a three -dimensional structure schematic diagram of transfer mechanism provided for the embodiment of the utility model;

[0026] Figure 9 The utility model provides a three -dimensional structure schematic diagram of welding unit provided for the embodiment of the utility model;

[0027] Figure 10 For Figure 9 The utility model provides a partial enlarged schematic diagram of structure in A place;

[0028] Figure 11 The utility model provides a structure schematic diagram of the tab after the upper pressing head cooperation lower pressing head shaping;

[0029] Figure 12 The utility model provides a first three -dimensional structure schematic diagram of cutting unit provided for the embodiment of the utility model;

[0030] Figure 13 The utility model provides a second three -dimensional structure schematic diagram of cutting unit provided for the embodiment of the utility model;

[0031] Figure 14 The utility model provides a three -dimensional structure schematic diagram of cutter provided for the embodiment of the utility model;

[0032] Figure 15 The utility model provides a three -dimensional structure schematic diagram of rubber pasting unit provided for the embodiment of the utility model;

[0033] Figure 16 The utility model provides a three -dimensional structure schematic diagram of rubber preparation assembly provided for the embodiment of the utility model;

[0034] Figure 17 For Figure 16 A local enlarged schematic view of the structure at B in the middle;

[0035] Figure 18 A schematic view of the three-dimensional structure of the rubber sticking assembly provided in the embodiment of the present application;

[0036] Figure 19 A schematic view of the structure after the tab rubber sticking in the embodiment of the present application.

[0037] Icon: 00, battery; 001, tab; 1, rack; 2, feeding mechanism; 3, alignment mechanism; 31, first seat plate; 32, first bottom plate; 33, first top plate; 34, first driving member; 35, first extension plate; 351, first driving chute; 36, movable beam; 361, movable positioning block; 362, first driving roller; 37, fixed beam; 371, static positioning block; 4, transfer mechanism; 40, third seat plate; 41, clamping jaw; 42, unlocking rod; 421, unlocking slope; 5, reflow line; 50, clamp; 511, second seat plate; 512, longitudinal positioning block; 513, first reference block; 514, first pressing block; 515, second pressing block; 5151, second driving roller; 5152, adapter plate; 516, integrated beam; 5161, second extension plate; 51611, second driving chute; 517, unlocking wheel; 6, positive electrode welding part; 61, welding unit; 611, fourth seat plate; 612, first lower seat frame; 613, first upper seat frame; 614, welding machine; 6141, upper welding head; 6142, lower welding head; 6143, upper dust suction pipe; 6144, lower dust suction pipe; 615, first support; 616, upper pressing plate; 6161, upper pressing head; 617, second support; 6171, lower pressing head; 61711, first step surface; 61712, second step surface; 62, cutting unit; 621, third support; 622, fifth seat plate; 623, second lower seat frame; 624, second upper seat frame; 625, fixed seat frame; 626, cutter; 6261, upper cutter head; 6262, lower cutter head; 6263, pressing plate; 62631, air hole; 62632, second guide column; 6264, driving plate; 6265, fixed plate; 62651, material leakage hole; 6266, first guide column; 627, material guiding cylinder; 628, material collecting bin; 63, rubber sticking unit; 630, rubber belt; 631, rubber preparation assembly; 6311, rack plate; 6312, material discharging roller; 6313, anvil block; 6314, movable block; 6315, rubber pulling gripper; 6316, cutter; 632, rubber sticking assembly; 6321, mounting rack; 6322, first mounting plate; 6323, second mounting plate; 6324, main suction head; 6325, auxiliary suction head; 63251, limiting block; 7, negative electrode welding part; X, first direction; Y, second direction; Z, longitudinal direction. Detailed Implementation

[0038] 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.

[0039] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 utility model 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 utility model.

[0040] 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 is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0041] Please refer to Figures 1 to 19 A stacked lithium battery tab welding device includes a frame 1, a feeding mechanism 2, a unloading structure, and a return line 5. The return line 5 has a positive electrode welding section 6 and a negative electrode welding section 7 on its side, used for welding the positive and negative electrode tabs of the battery 00, respectively. In this embodiment, the positive electrode welding section 6 and the negative electrode welding section 7 have the same structure; the following description uses the positive electrode welding section 6 as an example.

[0042] The positive electrode welding section 6 includes a welding unit 61, a cutting unit 62, and an adhesive application unit 63 arranged sequentially along the conveying direction of the return line 5. In this embodiment, in order to ensure the assembly accuracy of the battery 00 entering the return line 5, a positioning mechanism 3 and a transfer mechanism 4 are provided between the loading mechanism 2 and the return line 5. The positioning mechanism 3 is used to adjust the spatial position of the battery 00, and the transfer mechanism 4 is used to transfer the battery 00 located in the positioning mechanism 3 to the return line 5.

[0043] Specifically, the positive mechanism 3 comprises a first seat plate 31 arranged on the rack 1, a first bottom plate 32 adjustably assembled on the first seat plate 31 through a linear module, a first top plate 33 fixedly installed on the first bottom plate 32, the first bottom plate 32 being between the first top plate 33 and the first seat plate 31, and a first adjusting space being between the first top plate 33 and the first bottom plate 32. Further, the first top plate 33 is in a rectangular shape, the length direction of which is parallel to the length direction of the battery 00, the first top plate 33 is provided with a movable beam 36 and a fixed beam 37, the movable beam 36 is adjustably arranged on one side of the first top plate 33 in the width direction, and the fixed beam 37 is fixedly arranged on the other side of the first top plate 33 in the width direction. Optionally, the movable beam 36 is slidably connected with the first top plate 33 through a slide rail and slide block assembly. The movable beam 36 can be close to or away from the fixed beam 37.

[0044] As shown in Figure 3 and Figure 4 , the battery 00 is assembled on the upper surface of the first top plate 33, a plurality of movable positioning blocks 361 are arranged on the movable beam 36 in the length direction of the battery 00, a plurality of static positioning blocks 371 are arranged on the fixed beam 37 in the length direction of the battery 00, the static positioning blocks 371 are positioning references in the width direction of the battery 00, the positioning of the battery 00 in the width direction is realized by matching the movable positioning blocks 361 with the static positioning blocks 371, further, the linear module drives the first bottom plate 32 to move in the length direction of the battery 00, a photoelectric sensor is arranged on the rack 1 or the first seat plate 31 on one side of the length direction of the battery 00, for monitoring the end of the length direction of the battery 00, when the first seat plate 31, i.e. the battery 00, moves in the length direction thereof and reaches the monitoring position of the photoelectric sensor, the linear module stops moving, i.e. the positioning of the battery 00 in the length direction is realized. In this way, before the battery 00 is fed to the reflow line 5 through the transfer mechanism 4, the spatial position of the battery 00 can be corrected, which is beneficial to ensure the feeding accuracy and further beneficial to the accuracy of subsequent processing.

[0045] For the convenience of description, the assembly state shown in Figure 1 and Figure 2 is taken as an example, the length direction of the battery 00 is defined as the first direction X, and the width direction of the battery 00 is defined as the second direction Y.

[0046] In this embodiment, as shown in Figure 4As shown, the first top plate 33 is provided with a first driving mechanism on the side facing the first bottom plate 32, specifically a finger cylinder. A first extension plate 35 is assembled on the first driving mechanism, which is arranged to extend in the first direction X, and the first driving mechanism drives the first extension plate 35 to move in the first direction X; the first extension plate 35 is provided with a first driving chute 351, and the movable beam 36 is provided with a first driving roller 362 which is slidingly or rollingly assembled with the first driving chute 351. Preferably, the first extension plate 35 is two, which are located on both sides of the first driving mechanism in the first direction X, and are driven by the first driving mechanism, so as to synchronously drive the two ends of the movable beam 36 in the first direction X, which is beneficial to improve the consistency of the movement of each part of the movable beam 36 in the first direction X, and ensures the positioning accuracy of the positioning mechanism 3 to the battery 00. Specifically, when the first extension plate 35 moves in the first direction X, the first driving chute 351 cooperates with the first driving roller 362 to drive the movable beam 36 to move in the second direction Y.

[0047] In another embodiment, the movable beam 36 can also be directly driven by a cylinder arranged on the first top plate 33 or the fixed beam 37.

[0048] As shown in Figure 2 , Figure 5 , Figure 6 and Figure 7 , the running track of the reflow line 5 is in a rectangular shape, and the positive electrode welding part 6 and the negative electrode welding part 7 are located on both sides in the width direction thereof. The reflow line 5 is provided with a clamp 50 for fixing the battery 00, which includes a second seat plate 511, and the upper surface of the second seat plate 511 is provided with a longitudinal positioning block 512, a first reference block 513, a first pressing block 514 and a second pressing block 515, wherein the longitudinal positioning block 512 is used to support the battery 00; the first reference block 513 is located on one side of the longitudinal positioning block 512 in the second direction Y, and the first pressing block 514 is located on the other side of the longitudinal positioning block 512 in the second direction Y, and the first pressing block 514 can move towards or away from the first reference block 513 in the second direction Y.

[0049] The second pressing block 515 is arranged on both sides of the longitudinal positioning block 512 in the first direction X, and the second pressing block 515 can move towards or away from the longitudinal positioning block 512 in the first direction X.

[0050] Further, the second pressing block 515 and the first pressing block 514 can synchronously move towards or away from the longitudinal positioning block 512.

[0051] Specifically, the first pressing blocks 514 are integrated on the integrated beam 516, and the first pressing blocks 514 are arranged on the integrated beam 516 at intervals along the first direction X. In this embodiment, the integrated beam 516 is slidingly installed on the second base plate 511 through a sliding rail sliding block assembly, and a reset spring (not shown in the figure) is arranged between the integrated beam 516 and the second base plate 511. The reset spring acts on the integrated beam 516 to make it always have a movement trend along the second direction Y towards the longitudinal positioning block 512. In this way, self-locking of the clamp 50 is achieved.

[0052] As shown in Figure 7 , the integrated beam 516 is provided with a second extension plate 5161, the second pressing block 515 is fixedly installed on a adapter plate 5152, the adapter plate 5152 is slidingly installed on the second base plate 511 through a sliding rail sliding block assembly, the second extension plate 5161 is provided with a second driving chute 51611, and the adapter plate 5152 is provided with a second driving roller 5151 slidingly or rollingly installed on the second driving chute 51611. In this way, linkage of the first pressing block 514 and the second pressing block 515 is achieved, so that the first pressing block 514 and the second pressing block 515 always have a movement trend towards the longitudinal positioning block 512 under the power of the reset spring, thereby achieving self-locking of the battery 00 on the clamp 50.

[0053] In this embodiment, as shown in Figure 8 , the transfer mechanism 4 includes a third base plate 40, the third base plate 40 is provided with a clamping jaw 41 for grabbing the battery 00 and an unlocking lever 42 for unlocking the clamp 50,

[0054] The integrated beam 516 is rotatably installed with an unlocking wheel 517, and the unlocking lever 42 is provided with an unlocking slope 421 matched with the unlocking wheel 517. When the transfer mechanism 4 acts on the clamp 50, the unlocking lever 42 is between the unlocking wheel 517 and the longitudinal positioning block 512, and the unlocking slope 421 is attached to the unlocking wheel 517. When the unlocking lever 42 moves downward along the longitudinal direction Z to insert into the area between the unlocking wheel 517 and the longitudinal positioning block 512, the unlocking wheel 517 slides or rolls relative to the unlocking slope 421 to make the integrated beam 516 move away from the longitudinal positioning block 512 along the second direction Y. Correspondingly, the first pressing block 514 also moves away from the longitudinal positioning block 512 along the second direction Y. In this embodiment, the first pressing block 514 and the second pressing block 515 move synchronously, so that the clamp 50 can be unlocked. After the clamping jaw 41 clamps or places the battery 00 on the longitudinal positioning block 512, the third base plate 40 moves upward along the longitudinal direction Z to make the unlocking slope 421 disengage from the unlocking wheel 517. Under the action of the reset spring, the clamp 50 is reset to keep the self-locking state.

[0055] In this embodiment, the transfer mechanism 4 is arranged between the feeding mechanism 2 and the reflow line 5, and between the discharging mechanism and the reflow line 5.

[0056] As shown in Figure 9 and Figure 10 The welding unit 61 includes a fourth base plate 611, a first lower base frame 612, a first upper base frame 613 and a welding machine 614. The fourth base plate 611 is movably arranged on the rack 1 through a slide rail sliding block assembly. Specifically, the fourth base plate 611 can move along the first direction X to approach or move away from the battery 00 on the clamp 50. Further, the first lower base frame 612 is movably arranged on the fourth base plate 611 through a slide rail sliding block assembly, and the first lower base frame 612 can move along the second direction Y relative to the fourth base plate 611. The first lower base frame 612 is slidingly arranged in the first upper base frame 613, and the first upper base frame 613 can move along the longitudinal direction Z relative to the first lower base frame 612. The welding machine 614 is mounted on the first upper base frame 613. The welding unit 61 further includes a first support 615 and a second support 617 fixedly mounted on the rack 1. The first support 615 is adjustably provided with an upper pressing plate 616 along the longitudinal direction Z, and the upper pressing plate 616 is provided with an upper pressing head 6161. The second support 617 is provided with a lower pressing head 6171 corresponding to the upper pressing head 6161. When the clamp 50 moves to the welding unit 61, the battery 00 is below the upper pressing plate 616, and the tab 001 is between the upper pressing head 6161 and the lower pressing head 6171.

[0057] In this embodiment, the lower pressing head 6171 is provided with a first step surface 61711 and a second step surface 61712. The first step surface 61711 is closer to the upper pressing head 6161 than the second step surface 61712. When the clamp 50 is in the welding position, the battery 00 is attached to the second step surface 61712, and the tab 001 is attached to the first step surface 61711.

[0058] In use, the upper pressing plate 616 moves downward along the longitudinal direction Z, and the upper pressing plate 616 is attached to the battery 00, and the upper pressing head 6161 is attached to the tab 001. During this process, the upper pressing head 6161 cooperates with the first step surface 61711 and the second step surface 61712 to shape the tab 001 into a structure as shown in Figure 11 which facilitates welding the tab 001 into a firm whole.

[0059] In this embodiment, the welding machine 614 is an ultrasonic welding machine 614. The upper pressing plate 616 is slidingly connected to the first support 615 through a slide rail sliding block assembly and is driven to move along the longitudinal direction Z by a cylinder arranged on the first support 615.

[0060] The fourth base plate 611, the first lower base frame 612 and the first upper base frame 613 can be driven by a cylinder or a linear driving mechanism such as a linear module, so that the welding machine 614 can move in the first direction X, the second direction Y and the longitudinal direction Z. The first direction X, the second direction Y and the longitudinal direction Z are perpendicular to each other in pairs.

[0061] Further, as shown in Figure 10 The welding machine 614 includes an upper welding head 6141 and a lower welding head 6142, an upper dust suction pipe 6143 is arranged at the upper welding head 6141, and a lower dust suction pipe 6144 is arranged at the lower welding head 6142. Both the upper dust suction pipe 6143 and the lower dust suction pipe 6144 are connected to a negative pressure dust removal mechanism. During the welding process, the dust generated near the welding head can be removed through the upper dust suction pipe 6143 and the lower dust suction pipe 6144.

[0062] In some embodiments, the lower welding head 6142 is embedded in the lower dust suction pipe 6144, and the lower welding head 6142 protrudes out of the lower dust suction pipe 6144 in the longitudinal direction Z.

[0063] As shown in Figures 12 to 14 The cutting unit 62 includes a third support 621 arranged on the rack 1, and further includes a fifth seat plate 622, a second lower seat frame 623, and a second upper seat frame 624. The fifth seat plate 622 is slidingly installed on the third support 621 through a slide rail sliding block assembly, and the fifth seat plate 622 can move relative to the third support 621 along the first direction X. The second lower seat frame 623 is slidingly installed on the fifth seat plate 622 through a slide rail sliding block assembly, and the second lower seat frame 623 can move relative to the fifth seat plate 622 along the second direction Y. The second upper seat frame 624 is sleeved outside the second lower seat frame 623, and the second upper seat frame 624 can slide relative to the second lower seat frame 623 along the longitudinal direction Z. In this embodiment, the second upper seat frame 624 and the second lower seat frame 623 are slidingly connected through a slide rail sliding block assembly. Further, the top of the second upper seat frame 624 is provided with a fixed seat frame 625, and the fixed seat frame 625 is provided with a cutter 626 for cutting the tab 001.

[0064] The fifth seat plate 622, the second lower seat frame 623, and the second upper seat frame 624 can be driven by a gas cylinder or a linear driving mechanism such as a linear module, so that the cutter 626 can move along the first direction X, the second direction Y, and the longitudinal direction Z, to adjust the spatial position of the cutter 626 as needed.

[0065] The cutting unit 62 further includes a material guiding cylinder 627 and a material collecting bin 628. The material guiding cylinder 627 is arranged on the second upper seat frame 624, the inlet end of the material guiding cylinder 627 faces the cutter 626, and the outlet end of the material guiding cylinder 627 is connected to the material collecting bin 628. In use, after the clamp 50 is transported to the cutting unit 62 through the return flow line 5, the excess part of the tab 001 is cut by the cutter 626, and the waste is recycled to the material collecting bin 628 through the material guiding cylinder 627.

[0066] As shown in Figure 14As shown, the cutter 626 comprises a driving plate 6264 and a fixed plate 6265 longitudinally spaced apart along the longitudinal direction Z, the fixed plate 6265 is provided with a plurality of first guide columns 6266 extending along the longitudinal direction Z, the driving plate 6264 is in sliding connection with the first guide columns 6266, the driving plate 6264 is provided with an upper cutter head 6261, the fixed plate 6265 is provided with a lower cutter head 6262 matched with the upper cutter head 6261, the fixed plate 6265 is provided with a material leakage hole 62651 penetrating therethrough, the material leakage hole 62651 is located at the inner side of the lower cutter head 6262, and a material guide cylinder 627 is communicated to the material leakage hole 62651. In this embodiment, the driving plate 6264 is located at the longitudinal Z upper side of the fixed plate 6265, and is driven by an electric cylinder arranged on the fixed seat frame 625 to move along the longitudinal direction Z to approach or move away from the fixed plate 6265, so that the upper cutter head 6261 can approach or move away from the lower cutter head 6262. In use, the tab 001 is located between the upper cutter head 6261 and the lower cutter head 6262, and the upper cutter head 6261 cooperates with the lower cutter head 6262 to complete the cutting of the tab 001, and the waste material enters the material guide cylinder 627 through the material leakage hole 62651 located at the inner side of the lower cutter head 6262 and is then recycled into the material collecting bin 628.

[0067] As shown in Figure 12 and Figure 14 shown, the cutter 626 further comprises a material pressing plate 6263, the material pressing plate 6263 is provided with a second guide column 62632 extending along the longitudinal direction Z, the second guide column 62632 is slidingly embedded in the driving plate 6264, the material pressing plate 6263 is located at the outer side of the upper cutter head 6261, and a buffer spring (not shown in the figure) is arranged between the material pressing plate 6263 and the driving plate 6264, and the lower cutter head 6262 is located on the movement path of the material pressing plate 6263 along the longitudinal direction Z. In use, when the upper cutter head 6261 approaches the lower cutter head 6262 along the longitudinal direction Z, the material pressing plate 6263 abuts against the lower cutter head 6262 to press the tab 001, and the buffer spring can realize the flexible contact between the material pressing plate 6263 and the lower cutter head 6262, so as to realize the pressing of the tab 001 while not affecting the cutting action of the upper cutter head 6261 moving downward relative to the lower cutter head 6262 along the longitudinal direction Z, thereby improving the cutting precision of the tab 001.

[0068] As shown in Figure 14 shown, the material pressing plate 6263 is provided with an air hole 62631, and the outlet end of the air hole 62631 is arranged towards the side of the upper cutter head 6261. The air hole 62631 is connected to an ion wind, which is used to remove impurities on the tab 001 and can prevent the adhesion of waste material after cutting.

[0069] As shown in Figures 15 to 17As shown, the adhesive applying unit 63 comprises an adhesive preparation assembly 631 and an adhesive applying assembly 632 arranged on the rack 1. The adhesive preparation assembly 631 comprises a rack plate 6311 arranged on the rack 1, a discharge roller 6312 arranged on the rack plate 6311, an anvil block 6313, a moving block 6314 and a pulling hand 6315 arranged on the rack plate 6311, the moving block 6314 is arranged corresponding to the anvil block 6313, the adhesive tape 630 passes through the gap between the moving block 6314 and the anvil block 6313 to the pulling hand 6315 from the discharge roller 6312, and a cutter 6316 is adjustably arranged between the moving block 6314 and the pulling hand 6315 in the conveying direction of the adhesive tape 630, the moving block 6314 can move close to or away from the anvil block 6313, and the cutter 6316 is used to cut the adhesive tape 630.

[0070] In this embodiment, the anvil block 6313 is fixedly installed on the rack plate 6311, the moving block 6314 is driven by a cylinder to move close to or away from the anvil block 6313 in the longitudinal direction Z, and the pulling hand 6315 is driven by a finger cylinder to clamp the adhesive tape 630, the finger cylinder driving the pulling hand 6315 is driven by a linear module arranged on the rack plate 6311 to make the pulling hand 6315 drag the adhesive tape 630 a certain length in the first direction X after clamping the adhesive tape 630, so as to cut the adhesive tape 630 of a certain length by the cutter 6316.

[0071] As shown in Figure 19 The upper and lower sides of the tab 001 need to be applied with adhesive, so as shown in Figure 16 Preferably, the adhesive preparation assembly 631 comprises two groups of main structures of the discharge roller 6312, the anvil block 6313, the moving block 6314, the cutter 6316 and the pulling hand 6315, which are arranged in the longitudinal direction Z of the rack plate 6311.

[0072] Correspondingly, as shown in Figure 18 The adhesive applying assembly 632 comprises a mounting rack 6321 arranged on the rack 1, and two groups of adhesive applying heads are arranged on the mounting rack 6321 corresponding to the main structures of the two groups of adhesive preparation assemblies 631.

[0073] The adhesive head comprises a first mounting plate 6322 adjustably mounted on the mounting frame 6321 along the first direction X, a second mounting plate 6323 adjustably mounted on the first mounting plate 6322 along the longitudinal direction Z, a main suction head 6324 adjustably mounted on the second mounting plate 6323 along the second direction Y, a secondary suction head 6325 slidingly mounted on the main suction head 6324, the secondary suction head 6325 being capable of sliding relative to the main suction head 6324 along the longitudinal direction Z, and a damping spring (not shown in the figure) provided between the secondary suction head 6325 and the main suction head 6324 and acting on the secondary suction head 6325 to make it have a movement tendency towards the battery 00. In the embodiment, a linear module is provided on the mounting frame 6321 for driving the first mounting plate 6322, a linear module is provided on the first mounting plate 6322 for driving the second mounting plate 6323, a pneumatic cylinder is arranged on the second mounting plate 6323 for driving the main suction head 6324 to move, the secondary suction head 6325 and the main suction head 6324 are slidingly connected through a slide rail sliding block assembly, and negative pressure holes (not shown in the figure) for sucking the adhesive tape 630 through negative pressure are arranged on the main suction head 6324 and the secondary suction head 6325. A limiting block 63251 is arranged on the main suction head 6324, and the damping spring is arranged between the limiting block 63251 and the secondary suction head 6325. In the embodiment, the secondary suction head 6325 is used for pasting the adhesive tape 630 to the battery 00, and the main suction head 6324 is used for pasting the adhesive tape 630 to the tab 001.

[0074] In use, the clamp 50 is driven to the adhesive application assembly 632 unit through the reflow line 5, the main suction head 6324 and the secondary suction head 6325 move synchronously to the adhesive tape preparation assembly 631, the adhesive tape 630 cut by the cutter 6316 is grabbed, then moved along the first direction X towards the clamp 50, and finally the main suction head 6324 and the secondary suction head 6325 both move along the longitudinal direction Z towards the battery 00. After the secondary suction head 6325 abuts against the battery 00 to realize pasting of the adhesive tape 630, the main suction head 6324 continues to move in the same direction, at this time the secondary suction head 6325 is blocked by the battery 00 and the damping spring is compressed, the part of the adhesive tape 630 pasted on the battery 00 is clamped and fixed by the secondary suction head 6325 and the battery 00, and the adhesive tape 630 gradually separates from the main suction head 6324 and is pasted to the tab 001 during movement of the main suction head 6324 towards the tab 001, which can effectively avoid wrinkles of the adhesive tape 630 at the tab 001.

[0075] After completion of the positive electrode tab welding, the battery 00 moves to the negative electrode welding part 7 with the clamp 50, and the foregoing action is repeated to complete the negative electrode tab welding, and then the battery 00 is unlocked and transferred through the transfer mechanism 4 provided between the reflow line 5 and the unloading mechanism, and the loading mechanism, which are the same as the unloading mechanism, are grabbed by the robot, which is a prior art and will not be described here.

[0076] The technical means disclosed by the utility model scheme are not limited to the technical means disclosed by the above-mentioned embodiments, and also include technical schemes composed of any combination of the above technical features. It should be noted that, for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the protection scope of the utility model.

Claims

1. A laminated lithium battery tab welding apparatus, characterized by, The device comprises a rack, a feeding mechanism, a discharging mechanism and a reflow line, the reflow line is provided with welding parts at the sides for welding the positive and negative tabs of the battery respectively; The feeding mechanism and the reflow line are provided with a positive positioning mechanism and a transfer mechanism, the positive positioning mechanism is used for adjusting the spatial position of the battery, and the transfer mechanism is used for transferring the battery in the positive positioning mechanism to the reflow line; The welding part comprises a welding unit, a cutting unit and a rubberizing unit arranged in sequence along the conveying direction of the reflow line; The length direction of the battery is defined as the first direction, the width direction of the battery is defined as the second direction, and the thickness direction of the battery is defined as the longitudinal direction, and the first direction, the second direction and the longitudinal direction are perpendicular to each other.

2. The laminated lithium battery tab welding apparatus of claim 1, wherein, The positive positioning mechanism comprises a first top plate adjustably arranged on the rack; The first top plate is provided with a movable beam and a fixed beam, the movable beam is adjustably arranged on one side of the first top plate in the second direction, the fixed beam is fixedly arranged on the other side of the first top plate in the second direction, the movable beam can approach or move away from the fixed beam, and the first top plate can move along the first direction relative to the rack; A plurality of movable positioning blocks are arranged on the movable beam along the first direction; A plurality of static positioning blocks are arranged on the fixed beam along the first direction.

3. The laminated lithium battery tab welding apparatus of claim 2, wherein, The positive positioning mechanism further comprises a first seat plate, the first seat plate is adjustably assembled with a first bottom plate along the first direction, the first bottom plate is between the first top plate and the first seat plate, and the first bottom plate is fixedly connected with the first top plate; The side of the first top plate facing the first bottom plate is provided with a first driving mechanism, the first driving mechanism is assembled with a first extension plate, the first extension plate extends along the first direction, and the first driving mechanism drives the first extension plate to move along the first direction; The first extension plate is provided with a first driving chute, and the movable beam is provided with a first driving roller slidingly or rollingly assembled with the first driving chute.

4. The laminated lithium battery tab welding apparatus of claim 1, wherein, The reflow line is provided with a clamp for fixing the battery, the clamp comprises a second seat plate, the upper surface of the second seat plate is provided with a longitudinal positioning block, a first reference block, a first pressing block and a second pressing block, the longitudinal positioning block is used for supporting the battery; the first reference block is on one side of the longitudinal positioning block in the second direction, the first pressing block is on the other side of the longitudinal positioning block in the second direction, and the first pressing block can approach or move away from the first reference block along the second direction; Second pressing blocks are arranged on both sides of the longitudinal positioning block in the first direction, and the second pressing blocks can approach or move away from the longitudinal positioning block along the first direction.

5. The laminated lithium battery tab welding apparatus of claim 4, wherein, An integrated beam is slidingly arranged on the second seat plate, and the first pressing block is arranged on the integrated beam; A reset spring is arranged between the integrated beam and the second seat plate, and the reset spring acts on the integrated beam to make it always have a movement trend towards the longitudinal positioning block along the second direction.

6. The laminated lithium battery tab welding apparatus of claim 4, wherein, The second pressing block and the first pressing block can approach or move away from the longitudinal positioning block synchronously.

7. The laminated lithium battery tab welding apparatus of claim 6, wherein, The transfer mechanism comprises a third seat plate, the third seat plate is provided with a clamping jaw for grabbing the battery and an unlocking rod for unlocking the clamp; The clamp further comprises an unlocking wheel fixedly connected with the first pressing block and / or the second pressing block, and an unlocking slope matched with the unlocking wheel is arranged on the unlocking rod, when the unlocking rod moves downward along the longitudinal direction, the unlocking wheel slides or rolls relative to the unlocking slope to make the first pressing block and the second pressing block fixedly away from the longitudinal positioning block.

8. The laminated lithium battery tab welding apparatus of claim 1, wherein, The welding unit comprises a first support, a second support and a welding machine, wherein, The first support is adjustably provided with an upper pressing plate along the longitudinal direction, and the upper pressing plate is provided with an upper pressing head, the second support is provided with a lower pressing head corresponding to the upper pressing head, the battery is below the upper pressing plate, and the tab is between the upper pressing head and the lower pressing head; The welding machine comprises an upper welding head and a lower welding head, and the tab is between the upper welding head and the lower welding head, and the upper welding head and the lower welding head are both provided with dust suction pipes.

9. The laminated lithium battery tab welding apparatus of claim 1, wherein, The cutting unit comprises a cutter adjustably arranged on the rack, the cutter comprises a driving plate and a fixed plate arranged longitudinally and spaced apart, a plurality of first guide columns are arranged on the fixed plate along the longitudinal direction, the driving plate is slidably connected with the first guide columns, an upper cutter head is arranged on the driving plate, a lower cutter head matched with the upper cutter head is arranged on the fixed plate, and a material leakage hole is arranged on the fixed plate and penetrates through the fixed plate, and the material leakage hole is inside the lower cutter head. The cutter further comprises a pressing plate, a second guide column extending along the longitudinal direction is arranged on the pressing plate, the second guide column is slidably embedded in the driving plate, the pressing plate is outside the upper cutter head, a buffer spring is arranged between the pressing plate and the driving plate, and the lower cutter head is on the movement path of the pressing plate in the longitudinal direction.

10. The laminated lithium battery tab welding apparatus of claim 1, wherein, The rubber pasting unit comprises a glue preparation assembly and a rubber pasting assembly arranged on the rack, wherein, The rubber pasting assembly comprises a rubber pasting head, the rubber pasting head comprises a main suction head, a secondary suction head is slidably assembled on the main suction head, the secondary suction head can slide relative to the main suction head along the longitudinal direction, a damping spring is arranged between the secondary suction head and the main suction head, and the damping spring acts on the secondary suction head to make it have a movement trend towards the battery.

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