CN109802087B - Electrode lug welding forming machine - Google Patents

Abstract

The invention discloses a tab welding forming machine which comprises a conveying device, a feeding device, a first welding device, a second welding device, a first rubberizing device, a second rubberizing device, a bending device and a blanking device, wherein the feeding device is used for feeding a tab to a tab; the feeding device, the first welding device, the second welding device, the first rubberizing device, the second rubberizing device, the bending device and the blanking device are sequentially arranged at the positions of the jigs corresponding to the conveying devices; wherein, the feeding device provides the jig from the electric core to the conveying device; the conveying device conveys the battery core to a plurality of processing stations corresponding to the first welding device, the second welding device, the first rubberizing device, the second rubberizing device, the bending device and the blanking device. The tab welding forming machine reduces a large amount of manpower required in the existing production mode, is good in automation degree, occupies smaller space than a plurality of devices, improves production efficiency, reduces production cost of enterprises, and has the advantages of high precision and uniform quality of processed products.

Description

Electrode lug welding forming machine

Technical Field

The invention relates to the technical field of lithium battery production and processing, in particular to a tab welding forming machine.

Background

The power battery is a power supply for providing a power source for the tool, the battery is required to carry out tab welding on the battery cell in the production process, a series of processing such as rubberizing and bending are required to be carried out after tab welding is completed, but at present, a series of processing is required to be completed by two or more pieces of equipment, the completed semi-finished product is required to be manually carried to production equipment of the next process, a large amount of manual cooperation is required in the production mode, the production efficiency is low, the production space occupied by a plurality of pieces of equipment is larger, and the production cost of enterprises is increased.

Disclosure of Invention

Aiming at the defects in the prior art, the invention discloses a tab welding forming machine, which comprises: the device comprises a conveying device, a feeding device, a first welding device, a second welding device, a first rubberizing device, a second rubberizing device, a bending device and a discharging device; the feeding device, the first welding device, the second welding device, the first rubberizing device, the second rubberizing device, the bending device and the blanking device are sequentially arranged at the positions of the jigs corresponding to the conveying devices; wherein, the feeding device provides the jig from the electric core to the conveying device; the conveying device conveys the battery core to a plurality of processing stations corresponding to the first welding device, the second welding device, the first rubberizing device, the second rubberizing device, the bending device and the blanking device.

According to an embodiment of the present invention, the conveying device includes a rotating member and a jig; the jig is arranged on the rotating piece.

According to an embodiment of the invention, the feeding device comprises a feeding conveying piece, a transfer mechanism and a feeding manipulator; the feeding conveying piece is arranged at the position corresponding to the jig; the transfer mechanism is arranged at the side close to the discharge end of the feeding conveying piece; the feeding manipulator is arranged between the transfer mechanism and the conveying device.

According to an embodiment of the invention, the tab welding forming machine further includes a buffer device, and the buffer device is disposed at a position corresponding to the jig and is located on a path along which the battery cell moves.

According to an embodiment of the present invention, the tab welding forming machine further includes a multi-layer tab cutting device; the multi-layer tab cutting device is arranged at the position corresponding to the jig and is positioned on the moving path of the battery cell.

According to an embodiment of the present invention, the first welding device includes a welding support plate, a tab supply mechanism, a cutting mechanism, and a welding mechanism; the welding support plate is arranged on the moving path of the battery cell; the discharge end of the tab supply mechanism faces the conveying device; the cutting mechanism is arranged on the welding support plate and faces the discharge end of the tab supply mechanism; the welding mechanism is arranged on the welding support plate, and the welding end face of the welding mechanism faces the conveying device.

According to an embodiment of the present invention, the first welding device further includes a welding positioning mechanism; the welding positioning mechanism is arranged on the welding support plate and on the moving path of the lug.

According to an embodiment of the present invention, the first rubberizing device includes a gummed paper mounting plate, a gummed paper unreeling mechanism, a gummed paper clamping mechanism, a gummed paper compressing mechanism, a gummed paper cutting mechanism and a gummed paper absorbing mechanism; the gummed paper mounting plate corresponds to the conveying device; the gummed paper unreeling mechanism, the gummed paper clamping mechanism, the gummed paper compressing mechanism, the gummed paper cutting mechanism and the gummed paper absorbing mechanism are sequentially arranged on gummed paper in an installing way and face to the conveying device.

According to an embodiment of the present invention, the bending device includes a bending support frame, an upper die mechanism and a lower die mechanism; the bending support frame is arranged on a path of movement of the battery cell; the upper die mechanism and the lower die mechanism are oppositely arranged on the bending support frame.

According to an embodiment of the present invention, the tab welding forming machine further includes a testing device; the testing device is arranged at a position corresponding to the jig and is positioned on a path of movement of the battery cell.

The beneficial effects of the invention are as follows: the tab welding forming machine reduces a large amount of manpower required in the existing production mode, is good in automation degree, occupies smaller space than a plurality of devices, improves production efficiency, reduces production cost of enterprises, and has the advantages of high precision and uniform quality of processed products.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a top view of a tab welding forming machine in accordance with an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a transfer mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a first welding device according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a welding positioning mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic view of another structure of a welding positioning mechanism according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a positioning pusher in an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a first rubberizing device according to an embodiment of the invention;

FIG. 8 is a schematic diagram of another embodiment of a first rubberizing device;

FIG. 9 is a schematic diagram of a bending apparatus according to an embodiment of the present invention;

FIG. 10 is a schematic view of another embodiment of a bending apparatus;

FIG. 11 is a schematic diagram of a testing device according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of a buffer device according to an embodiment of the present invention;

Fig. 13 is a schematic diagram of another structure of a buffer device according to an embodiment of the invention.

Detailed Description

Various embodiments of the invention are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the invention. That is, in some embodiments of the invention, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the invention solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

For a further understanding of the nature, features, and efficacy of the present invention, the following examples are set forth in order to provide a further understanding of the invention, and are intended to be described in connection with the accompanying drawings:

Fig. 1 is a top view of a tab welding forming machine according to an embodiment of the application. As shown in the figure, the tab welding forming machine of the application comprises a conveying device 1, a feeding device 2, a first welding device 3, a second welding device 4, a first rubberizing device 5, a second rubberizing device 6, a bending device 7 and a discharging device 8. The feeding device 2, the first welding device 3, the second welding device 4, the first rubberizing device 5, the second rubberizing device 6, the bending device 7 and the blanking device 8 are sequentially arranged at the position corresponding to the jig 1002 of the conveying device 1.

Preferably, the tab welding forming machine further comprises a multi-layer tab cutting device 9. The multi-layer tab cutting device 9 is arranged at a position corresponding to the jig 1002, and the multi-layer tab cutting device 9 is positioned between the feeding device 2 and the first welding device 3, namely on the moving path of the battery cell.

Preferably, the tab welding forming machine further comprises a testing device 11. The testing device 11 is disposed at a position corresponding to the jig 1002, and the testing device 11 is disposed between the bending device 7 and the blanking device 8, i.e. on a path along which the battery cell moves.

Preferably, the tab welding forming machine further comprises a buffer device 12, and the buffer device 12 is arranged between the conveying device 1 and the feeding device 2.

When the tab welding forming machine works, firstly, the feeding device 2 provides an electric core to the conveying device 1; secondly, the transmitting device 1 sequentially transmits the battery cells to a plurality of processing stations corresponding to the multi-layer tab cutting device 9, the first welding device 3, the second welding device 4, the first rubberizing device 5, the second rubberizing device 6, the bending device 7 and the testing device 11 to process tab and battery cell positive electrode welding, tab and battery cell negative electrode welding, positive electrode rubberizing paper, negative electrode rubberizing paper, tab bending and battery cell testing; finally, the blanking device 8 performs blanking collection on the processed product. When the last machine of the feeding device 2 fails, the tab welding forming machine gives an alarm to prompt a user, and at the moment, the buffer device 12 replaces the feeding device 2 to provide an electric core for the conveying device 1, the tab welding forming machine can continue to normally operate, and after the user removes the failure, the tab welding forming machine can normally operate again; when any one of the other devices except the feeding device 2 fails, the tab welding forming machine gives an alarm to prompt a user, at this time, the battery cell provided by the feeding device 2 is carried to the caching device 12 for caching through the material moving manipulator, and after the user removes the failure, the tab welding forming machine runs normally again.

In particular, the conveying device 1 includes a rotating member 1001 and a jig 1002. The jigs 1002 are disposed on the rotating member 1001, and each jig 1002 is transferred to one of the plurality of processing stations corresponding to the feeding device 2, the first welding device 3, the second welding device 4, the first rubberizing device 5, the second rubberizing device 6, the bending device 7 and the blanking device 8 through the rotating member 1001. In this embodiment, the rotating member 1001 is driven by a driving motor to rotate, so as to sequentially transfer the jig 1002 to the processing stations of each device, however, other rotating members 1001 may be used, which is only an embodiment of the present invention, and the invention is not limited thereto. Preferably, each jig 1002 has a receiving slot matching the shape of the cell, and each jig 1002 further has a clamping assembly including a clamping cylinder and a pressing plate, the clamping cylinder driving the pressing plate to fix the cell in a predetermined position when the cell is placed in the receiving slot.

Referring to fig. 2, a schematic diagram of the transfer mechanism 22 according to an embodiment of the invention is shown. As shown in the figure, the feeding device 2 includes a feeding conveyor 21, a transfer mechanism 22, and a feeding manipulator 23. The feeding conveyor 21 is disposed at a position corresponding to the jig 1002. The transfer mechanism 22 is disposed at a side near the discharge end of the feeding conveyor 21, and the transfer mechanism 22 is disposed between the feeding conveyor 21 and the conveying device 1. The feeding manipulator 23 is disposed between the transfer mechanism 22 and the conveying device 1. Further, the transfer mechanism 22 includes a transfer member 221 and a transfer table 222. The transfer piece 221 is disposed at a side close to the discharge end of the feeding conveying piece 21, and the transfer piece 221 is located between the feeding conveying piece 21 and the conveying device 1. The transfer table 222 is disposed between the transfer member 221 and the loading robot 23. Still further, the transfer member 221 includes a transfer frame 2211, a first transfer motor 2212, a first screw rod 2213, a sliding plate 2214, a second transfer motor 2215, a second screw rod 2216, and a suction cup 2217. The transfer support 2211 is disposed at a side near the discharge end of the feeding conveyor 21, and the transfer support 2211 is located between the feeding conveyor 21 and the transfer table 222. The first relay motor 2212 is disposed on the relay bracket 2211. The first lead screw 2213 is arranged on the transfer support 2211 through two bearing blocks, and one end of the first lead screw 2213 is connected with the output end of the first transfer motor 2212. The sliding plate 2214 is slidably disposed on the transfer support 2211 through a guide rail slider, and the sliding plate 2214 is further connected to a screw nut disposed on the first screw 2213. The second relay motor 2215 is disposed on the slide plate 2214. The second lead screw 2216 is disposed on the sliding plate 2214 through two bearing seats, and one end of the second lead screw 2216 is connected to the output end of the second transit motor 2215. The suction cup 2217 is connected with a screw nut arranged on the second screw 2216 through a connecting plate, and the suction side of the suction cup 2217 faces the feeding conveying member 21.

In this embodiment, the feeding conveyor 21 is a motor-driven conveying wheel to realize feeding and conveying of the battery cells, and the feeding manipulator 23 is a three-axis manipulator to realize conveying of the battery cells, however, other feeding conveyors 21 may be used, and other feeding manipulators 23 may be used, which is only an embodiment of the present invention and should not be limited thereto.

Preferably, the relay mechanism 22 further includes a relay dust brush 223. The intermediate rotary dust brush 223 is disposed between the intermediate rotary member 221 and the intermediate rotary stage 222.

In specific application, firstly, the motor drives the conveyer belt to rotate, so that the battery cell arranged on the conveyer belt is conveyed to a station of the transfer mechanism 22; secondly, the first transfer motor 2212 drives the first lead screw 2213 to rotate, so that the suction cup 2217 on the sliding plate 2214 is driven to move towards the direction of the battery cell and suck the battery cell, and then the first transfer motor 2212 drives the suction cup 2217 sucking the battery cell to restore to the initial position; thirdly, the second transfer motor 2215 drives the second lead screw 2216 to rotate, so that the suction disc 2217 sucking the battery core is driven to move towards the transfer table 222, in the moving process, one surface of the battery core, which is not sucked, passes through the transfer dust removing brush 223, the battery core is removed dust by the transfer dust removing brush 223 and then moves onto the transfer table 222, finally, the battery core on the transfer table 222 is sucked by the feeding manipulator 23 and is conveyed into a containing groove of the jig 1002, preferably, an image sensor is arranged below a path of the battery core sucking movement towards the jig 1002 by the feeding manipulator 23, the image sensor performs image acquisition on the position of the battery core, and feeds back to a control system of the tab welding forming machine for judgment, and if the battery core is positioned at a preset position, the battery core is conveyed into the containing groove by the feeding manipulator 23; if the battery cell is not in the predetermined position range, the feeding manipulator 23 directly moves the battery cell into the turnover box 15 arranged below the feeding manipulator 23, and specifically, the graphic sensor is a CCD camera.

In specific applications, the structure and operation principle of the first welding device 3 and the second welding device 4 are identical, and in the following, the structure and operation principle of the first welding device 3 and the second welding device 4 are specifically described by taking the first welding device 3 as an example.

Referring to fig. 3 again, a schematic structural diagram of the first welding device 3 according to an embodiment of the present invention is shown. As shown in the figure, the first welding device 3 includes a welding support plate 31, a tab feeding mechanism 32, a cutting mechanism 33, and a welding mechanism 34. The welding support plate 31 is arranged at a position corresponding to the jig 1002, and the welding support plate 31 is positioned between the feeding device 2 and the second welding device 4. The tab supply mechanism 32 is disposed at a position corresponding to the jig 1002, and a discharge end of the tab supply mechanism 32 faces the conveying device 1. The cutting mechanism 33 is disposed on the welding support plate 31, and the cutting mechanism 33 faces the discharge end of the tab feeding mechanism 32. The welding mechanism 34 is provided to the welding support plate 31, and a welding end of the welding mechanism 34 faces the conveyor 1. Further, the tab feeding mechanism 32 includes a rolled tab tray 321, a plurality of conveying rollers 322, and a driving roller 323. The coiled tab tray 321 is rotatably disposed on the welding support plate 31. A plurality of driving rollers are provided to the welding support plate 31, and the plurality of driving rollers are parallel to the rolled tab tray 321. The driving roller 323 is provided to the welding support plate 31, and the driving roller 323 is parallel to the plurality of driving rollers. In a specific application, one end of the rolled tab is sequentially wound on the plurality of conveying rollers 322 and the driving roller 323 and passes through the cutting mechanism 33, and further, the cutting mechanism 33 comprises a cutting frame 331, a fixed cutting knife 332, a cutting cylinder 333 and a movable cutting knife 334. The cutting frame 331 is disposed on the welding support plate 31, and the cutting frame 331 is located between the tab feeding mechanism 32 and the welding mechanism 34. The fixed cutter 332 is provided to the cutter frame 331. The cutting cylinder 333 is disposed on the cutting frame 331, and an output end of the cutting cylinder 333 faces the fixed cutting knife 332. The movable cutting knife 334 is disposed at the output end of the cutting cylinder 333, and the movable cutting knife 334 is movably connected with the fixed cutting knife 332. Still further, the welding mechanism 34 includes a weld seat 341 and a weld head 342. The welding seat 341 is disposed on the welding support plate 31, and the welding seat 341 is located at a position corresponding to the jig 1002. The welding head 342 is provided to the welding support plate 31, and the welding head 342 faces the holder 341.

Preferably, the first welding device 3 further comprises a welding positioning mechanism 35. The welding positioning mechanism 35 is provided to the welding support plate 31, and the welding positioning mechanism 35 is located between the cutting mechanism 33 and the welding mechanism 34. Referring to fig. 4, fig. 5 and fig. 6 together, fig. 4 is a schematic structural diagram of the welding positioning mechanism 35 according to an embodiment of the present invention, fig. 5 is another schematic structural diagram of the welding positioning mechanism 35 according to an embodiment of the present invention, and fig. 6 is a cross-sectional view of the positioning pushing block 3531 according to an embodiment of the present invention. As shown, the weld positioning mechanism 35 includes a positioning support 351, a moving positioning assembly 352, and a positioning pusher assembly 353. The positioning support seat 351 is disposed on the welding support plate 31, and the positioning support seat 351 is disposed between the cutting mechanism 33 and the welding mechanism 34. The moving positioning assembly 352 is disposed on the positioning support 351. The positioning push block assembly 353 is disposed to the mobile positioning assembly 352. Further, the moving positioning assembly 352 includes a moving positioning cylinder 3521, a moving positioning plate 3522, a pressing block cylinder 3523, and a pressing block 3524. The moving positioning cylinder 3521 is disposed on the positioning support seat 351, and an output end of the moving positioning cylinder 3521 faces the positioning pushing block assembly 353. The movable positioning plate 3522 is L-shaped, and a lateral edge of the movable positioning plate 3522 is disposed at an output end of the movable positioning cylinder 3521. The briquetting cylinder 3523 is arranged on the positioning support seat 351, the output end of the briquetting cylinder 3523 penetrates through the vertical edge of the movable positioning plate 3522 to be connected with the briquetting 3524, and the briquetting 3524 is movably connected with the vertical edge of the movable positioning plate 3522. Further, the positioning pusher assembly 353 includes a positioning pusher 3531, a positioning pusher cylinder 3532, and a positioning pusher fixing plate 3533. The positioning push block 3531 is L-shaped, and the transverse edge of the positioning push block 3531 penetrates through the vertical edge of the movable positioning plate 3522, and the transverse edge of the positioning push block 3531 is slidably arranged on the transverse edge of the movable positioning plate 3522 through a sliding rail. The positioning push block cylinder 3532 is disposed on the moving positioning plate 3522, the positioning push block cylinder 3532 is disposed on one side of the lateral edge of the positioning push block 3531, and the output end faces the vertical edge of the positioning push block 3531. The positioning push block fixing plate 3533 is disposed at a lateral side of the positioning push block 3531, the positioning push block fixing plate 3533 is connected to an output end of the positioning push block cylinder 3532 through a sliding block 3534, and preferably an elastic member, such as a spring, is disposed between the positioning push block fixing plate 3533 and the sliding block. In specific application, the top of the vertical edge of the movable positioning plate 3522 is provided with a first sucker 35221, the top of the vertical edge of the positioning push block 3531 is provided with a second sucker 35311, and the upper parts of the first sucker 35221 and the second sucker 35311 are provided with regular positioning holes 35312, preferably, the regular positioning holes 35312 are in an inverted isosceles trapezoid shape. The positioning pushing block 3531 is provided with an air channel 35313, a piston rod 35314 is arranged in the air channel 35313, the piston rod 35314 is connected with a gauge block 35315, the gauge block 35315 is located on one side of the second sucking disc 35311, preferably, one end of the piston rod 35314 is provided with an elastic element, such as a spring, so that the piston rod 35314 can conveniently push the gauge block 35315 to reset after positioning the tab. Preferably, the positioning push block 3531 further has a stop 35316, and the stop 35316 covers the gauge block 35315 to prevent it from being ejected or falling.

When the first welding device 3 works, firstly, one end of a coiled tab is wound on a plurality of conveying rollers 322 and driving rollers 323 in sequence and passes through a space between a fixed cutting knife 332 and a movable cutting knife 334 to be clamped by a first material clamp; secondly, the cutting cylinder 333 drives the movable cutting knife 334 to move towards the direction of the fixed cutting knife 332, the movable cutting knife 334 and the fixed cutting knife cooperate to cut the coiled tab into a preset length, and then the material clamp conveys the cut tab to a corresponding regular positioning hole 35312; again, the movable positioning cylinder 3521 drives the movable positioning plate 3522 to drive the positioning pushing block assembly 353 to move upwards, at this time, the first suction cup 35221 and the second suction cup 35311 simultaneously generate suction force to suck the tab, and after the first suction cup 35221 and the second suction cup 35311 suck the tab, the first material clamp 36 is restored to the initial state, and the next cut tab is clamped; then, the positioning pushing block cylinder 3532 drives the positioning pushing block 3531 to move, so that the distance between the vertical edge of the moving positioning plate 3522 and the vertical edge of the positioning pushing block 3531 is shortened, meanwhile, the pressing block cylinder 3523 drives the pressing block 3524 to press the lug downwards, the air flue 35313 ventilates and pushes the piston rod 35314 to drive the gauge block 35315 to position and adjust the lug in the regular positioning hole 35312; finally, after positioning, the second material clamp 37 moves the tab to the welding seat 341, and the welding head 342 welds the tab at a predetermined position of the battery cell transferred by the jig 1002. Preferably, dust removing pieces are arranged at the cutting mechanism 33 and the welding mechanism 34, the dust removing pieces are air pipes, and the air pipes generate suction to suck dust.

In specific applications, the structure of the multi-layer tab cutting device 9 is consistent with the structure and operation principle of the cutting mechanism 33, and will not be described herein. The multi-layer tab cutting device 9 can cut the multi-layer tab at one time.

In specific application, the structure and operation principle of the first rubberizing device 5 and the second rubberizing device 6 are identical, and in the following, the structure and operation principle of the first rubberizing device 5 and the second rubberizing device 6 are specifically described by taking the first rubberizing device 5 as an example.

Referring to fig. 7 and fig. 8 together, fig. 7 is a schematic structural diagram of the first rubberizing device 5 according to an embodiment of the invention, and fig. 8 is another schematic structural diagram of the first rubberizing device 5 according to an embodiment of the invention. As shown in the figure, the first rubberizing device 5 includes a gumming mounting plate 51, a gumming unreeling mechanism 52, a gumming clamping mechanism 53, a gumming pressing mechanism 54, a gumming cutting mechanism 55 and a gumming absorbing mechanism 56. The gummed paper mounting plate 51 is arranged at a position corresponding to the jig 1002, and the gummed paper mounting plate 51 is positioned between the second welding device 4 and the second rubberizing device 6. The gummed paper unwinding mechanism 52, the gummed paper clamping mechanism 53, the gummed paper pressing mechanism 54, the gummed paper cutting mechanism 55 and the gummed paper absorbing mechanism 56 are sequentially arranged on the gummed paper mounting plate 51 and face the jig 1002. Further, the gummed paper holding mechanism 53 includes a holding driving motor 531, two holding cylinders 532, and two clamping plates 533. The clamping driving motor 531 is arranged on the gummed paper mounting plate 51, and the output end of the clamping driving motor 531 is connected with a ball screw. Two clamping cylinders 532 are provided to the ball screw by a mounting plate. Two clamping plates 533 are provided at the output ends of the two clamping cylinders 532, respectively. Further, the gummed paper pressing mechanism 54 includes a pressing cylinder 541 and a pressing block 542. The pressing cylinder 541 is provided to the gummed paper setting plate 51. The pressing block 542 is provided at the output end of the pressing cylinder 541. Further, the gummed paper cutting mechanism 55 includes two fixing cylinders 551, two fixing blocks 552, a gummed paper cutting cylinder 553, and a gummed paper cutting knife 554. The two fixing cylinders 551 are oppositely arranged on the gummed paper mounting plate 51. The two fixing blocks 552 are respectively disposed at the output ends of the two fixing cylinders 551. The gummed paper cutting cylinder 553 is provided to the gummed paper setting plate 51. The gummed paper cutting knife 554 is disposed at the output end of the gummed paper cutting cylinder 553. Further, the gummed paper sucking mechanism 56 includes a gummed paper sucking driving motor 561, a sucking cylinder 562, and a sucking head 563. The gummed paper sucking driving motor 561 is provided on the gummed paper mounting plate 51, and an output end of the gummed paper sucking driving motor 561 is connected with a ball screw. The suction cylinder 562 is provided to the gummed paper mounting plate 51 through a mounting plate. The suction head 563 is provided at the output end of the suction cylinder 562.

In specific application, the welded tab is driven by the jig 1002 to a station of the first rubberizing device 5, firstly, the gummed paper unreeling mechanism 52 unreels gummed paper, the two clamping cylinders 532 drive the two clamping plates 533 to clamp one end of the rolled gummed paper, then, the clamping driving motor 531 drives the two clamping cylinders 532 and the two clamping plates 533 to move, the gummed paper is pulled to a preset position, and the gummed paper passes through the guide plate arranged on the gummed paper mounting plate 51 in the moving process of the gummed paper; secondly, the compressing cylinder 541 drives the compressing block 542 to compress on the guide plate to compress the gummed paper, and then the two fixing blocks 552 clamp and fix the gummed paper under the drive of the two fixing cylinders 551; thirdly, the suction head 563 sucks the adhesive paper under the driving of the suction cylinder 562, and then the adhesive paper cutting cylinder 553 drives the adhesive paper cutting blade 554 to cut the adhesive paper; finally, the driving motor of the gummed paper absorbing mechanism 56 drives the absorbing head 563 absorbing gummed paper to move to the tab, thereby realizing gummed paper pasting.

Referring to fig. 9 and 10, fig. 9 is a schematic structural diagram of the bending device 7 according to an embodiment of the present invention, and fig. 10 is another schematic structural diagram of the bending device 7 according to an embodiment of the present invention. As shown, the bending device 7 includes a bending support 71, an upper die mechanism 72, and a lower die mechanism 73. The bending support frame 71 is disposed at a position corresponding to the jig 1002, and the bending support frame 71 is located between the second rubberizing device 6 and the blanking device 8. The upper die mechanism 72 and the lower die mechanism 73 are provided on the bending support 71 from top to bottom.

Further, the upper die mechanism 72 includes an upper die motor 721, an upper die mounting plate 722, a fixed seat 723, and an upper press block 724. The upper die motor 721 is provided to the bending support frame 71. The upper die mounting plate 722 is slidably disposed on the bending support frame 71 through a slide rail, and the upper die mounting plate 722 is connected to an output end of the upper die motor 721 through a ball screw. The fixing base 723 is provided to the upper die mounting plate 722, and the fixing base 723 is connected to the upper pressing block 724 through a shaft sleeve. Preferably, there is an elastic member, such as a spring, between the fixing seat 723 and the sleeve. Preferably, the upper die mechanism 72 further includes an upper die sensor 725, the upper die sensor 725 is disposed on the bending support 71, and the upper die sensor 725 is used for sensing a position of the upper pressing block 724 so as to improve bending accuracy.

Further, the lower die mechanism 73 includes a lower die motor 731, a lower die mounting plate 732, two fixed blocks 733, a lower pressing block 734, two movable blocks 735, and a bending cylinder 736. The lower die motor 731 is provided on the bending support frame 71. The lower die mounting plate 732 is slidably disposed on the bending support frame 71 via a slide rail, and the lower die mounting plate 732 is connected to an output end of the lower die motor 731 via a ball screw. Two fixing blocks 733 are provided on the lower die mounting plate 732. The lower pressing block 734 is rotatably disposed on the two fixing blocks 733 through a rotation shaft. Two movable blocks 735 are respectively sleeved at two ends of the rotating shaft, and one movable block in the two movable blocks 735 is connected with the bending support frame 71 through a spring. The bending cylinder 736 is disposed on the lower die mounting plate 732, and an output end of the bending cylinder 736 is movably connected with another movable block of the two movable blocks 735, which is not connected with a spring. Preferably, the lower die mechanism 73 further includes a lower die sensor 737, the lower die sensor 737 is disposed on the bending support 71, and the lower die sensor 737 is used for sensing a position of the lower pressing block 734 so as to improve bending accuracy.

In specific application, a notch of 90 degrees is formed in one surface of the lower pressing block 734, which is in contact with the battery cell, a certain inclination angle is formed in the upper surface of the lower pressing block 734, a pressing knife is arranged on the jig 1002, firstly, when the electrode lug reaches a preset position, the pressing knife presses the electrode lug, the lower die motor 731 drives the lower die mounting plate 732 to move towards the electrode lug direction, so that the lower pressing block 734 is driven to abut against the electrode lug, and then, the upper die motor 721 drives the upper die mounting plate 722 to drive the fixing seat 723 to drive the upper pressing block 724 to move towards the electrode lug direction for a certain distance, so that when the lower pressing block 734 moves upwards to bend the electrode lug, the electrode lug cannot be tilted upwards all the time under the blocking of the upper pressing block 724, and subsequent bending is facilitated; secondly, the lower die motor 731 continuously drives the lower die mounting plate 732 to move towards the direction of the tab, and meanwhile, the bending cylinder 736 pushes the other one of the two movable blocks 735, which is not connected with the spring, through the pushing block, so that the lower pressing block 734 rotates forwards by a certain angle with the rotating shaft as the axial direction, the tab is bent out of the first bend, and the spring is in a stretching state; again, the upper press block 724 moves toward the tab, and as the lower press block 734 rotates by a certain angle and the upper surface of the lower press block is inclined, the upper surface of the lower press block 734 is inclined by the same angle as the upper surface of the lower press block 734, so that the tab is folded out of the second bend, and an angle of 90 degrees is formed between the two bends; finally, after the bending is completed, the upper die mechanism 72 and the lower die mechanism 73 both recover to an initial state, the springs also recover to an unstretched state, and the spring force drives the lower pressing block 734 to recover to an initial state, and the next bending is waited.

In specific application, the discharging device 8 includes a discharging manipulator 81 and a discharging conveying member 82, and the structure and operation principle of the discharging manipulator 81 and the discharging conveying member 82 are the same as the structure and operation principle of the feeding manipulator 23 and the feeding conveying member 21, which are not described in detail herein.

Referring to fig. 11 again, a schematic structural diagram of a testing device 11 according to an embodiment of the invention is shown. As shown, the testing device 11 comprises at least one testing mechanism 111, a test dust removing mechanism 112 and a discharging mechanism 113. At least one testing mechanism 111 is disposed between the discharging robot 81 and the discharging conveying member 82. The test dust removing mechanism 112 is located between the at least one test mechanism 111 and the discharging manipulator 81. The discharging mechanism 113 is disposed at a side near the feeding end of the at least one testing mechanism 111, and the discharging end of the discharging mechanism 113 faces the discharging conveying member 82. Further, the single test mechanism 111 includes a test rack 1111, a transfer table 1112, and a test piece 1113. The test rack 1111 is disposed between the discharging robot 81 and the discharging conveyor 82. The transfer table 1112 is slidably disposed on the test rack 1111 by a slide rail. The test piece 1113 is set above the transfer table 1112 through a gantry. In this embodiment, the number of the test mechanisms 111 is two, and the two test mechanisms 111 are arranged in parallel, however, the number of the test mechanisms 111 can be increased or decreased according to the requirement, which is just an embodiment of the present invention, and the present invention is not limited thereto. Further, the test dust removing mechanism 112 includes a dust removing fan 1121, the dust removing fan 1121 faces the discharging mechanism 113, and further, the discharging mechanism 113 includes a discharging bracket 1131 and a discharging clamping jaw 1132. The discharging support 1131 is disposed at a side near the feeding end of the at least one testing mechanism 111. The discharge clamping jaw 1132 is slidably arranged on the discharge bracket 1131 through a sliding rail, and the discharge clamping jaw 1132 can move up and down through a discharge cylinder arranged on the discharge bracket 1131.

When the battery cell is specifically applied, the jig 1002 drives the battery cell to move to a station of the testing device 11, the discharging manipulator 81 moves the battery cell to the transfer table 1112, in the moving process, the image sensor arranged below the discharging path of the discharging manipulator 81 collects images of the battery cell gummed paper sucked by the discharging manipulator 81 and feeds the images back to the control system of the tab welding forming machine for judgment, and if the battery cell gummed paper is missing, the discharging manipulator 81 directly moves the defective battery cell to the turnover box 15 arranged on the testing frame 1111; if the battery cell is qualified, the blanking manipulator 81 moves the good battery cell to the transfer table 1112, the transfer table 1112 slides to the lower part of the test piece 1113 under the drive of the motor, the test piece 1113 performs short circuit test on the battery cell, after the test is finished, the transfer table 1112 drives the battery cell to move to the initial position, the discharging clamping jaw 1132 moves to the moving table to clamp the battery cell, if the battery cell is qualified in test, the discharging clamping jaw 1132 drives the battery cell to move to the upper part of the dust removing fan 1121 to remove dust, then the battery cell is moved to the blanking conveying piece 82, and the blanking conveying piece 82 performs blanking on the qualified battery cell; if the cell test is not qualified, the discharging clamping jaw 1132 clamps the cell and then directly moves the cell into the turnover box 15 arranged beside the discharging bracket 1131. Preferably, the test rack 1111 is provided with a mobile station dust removing brush 11121, and each time the discharge clamping jaw 1132 moves a cell, the mobile station dust removing brush 11121 is clamped once to perform dust removing treatment on the transfer table 1112. Preferably, the test piece 1113 also has a dust removing piece, which is a gas tube that creates suction to draw dust away.

Referring to fig. 12 and 13, fig. 12 is a schematic diagram of a structure of the buffer device 12 according to an embodiment of the present invention, and fig. 13 is another schematic diagram of a structure of the buffer device 12 according to an embodiment of the present invention. As shown, the caching device 12 includes a caching frame 121, a plurality of caching tray mechanisms 122, and a caching gripping mechanism 123. The buffer rack 121 is disposed between the conveying device 1 and the feeding device 2. The plurality of buffer tray mechanisms 122 are sequentially disposed on the buffer frame 121 from top to bottom. The buffer clamping mechanism 123 is disposed on the buffer rack 121, and the buffer clamping mechanism 123 clamps the battery cells on the feeding conveyor 21 to the buffer tray mechanisms 122 for buffering. Further, the single cache tray mechanism 122 includes a moving cylinder 1221, a tray 1222, and a lift motor 1223. A moving cylinder 1221 is provided to the buffer frame 121, and preferably, the moving cylinder 1221 is a rodless cylinder. The tray 1222 is provided on a piston of the rodless cylinder, the elevating motor 1223 is provided on the buffer frame 121, and the elevating motor 1223 is connected to the tray 1222 through a ball screw. Further, the cache clamping mechanism 123 includes a lateral movement assembly 1231, a longitudinal movement assembly 1232, and a vertical movement assembly 1233. The traverse assembly 1231 is disposed on the cache rack 121. The longitudinal movement assembly 1232 is disposed at the lateral movement assembly 1231. The vertical movement assembly 1233 is disposed on the lateral movement assembly 1231. When the electric core clamping and carrying device is specifically applied, the transverse motor of the transverse moving assembly 1231 drives the longitudinal moving assembly 1232 through the roller screw to realize transverse movement, the longitudinal motor of the longitudinal moving assembly 1232 drives the vertical moving assembly 1233 through the roller screw to realize longitudinal movement, and the vertical cylinder of the vertical moving assembly 1233 drives the sucking disc 1234 arranged at the output end of the vertical cylinder to realize vertical movement, so that the electric core is clamped and carried to the tray 1222 for caching, and of course, the caching and clamping mechanism 123 can also use a triaxial manipulator with a hand part as the sucking disc 1234.

When the feeding device 2 fails and needs to buffer the battery cells, the moving cylinder 1221 drives the tray 1222 to move to a station of the buffer clamping mechanism 123, the buffer clamping mechanism 123 clamps the battery cells to be placed into a plurality of battery cell slots of the tray 1222 for buffer storage, after one tray 1222 is fully stored, the lifting motor 1223 lowers the tray 1222 to the lower side for storage, and replaces a new tray 1222; when the battery cells cached by the caching device 12 are needed, the actions are reversed.

When the device is specifically applied, the conveying device 1, the feeding device 2, the first welding device 3, the second welding device 4, the first rubberizing device 5, the second rubberizing device 6, the bending device 7, the blanking device 8, the multi-layer tab cutting device 9, the testing device 11 and the buffer device 12 are all electrically connected with a control system of the tab welding forming machine, and the control system of the tab welding forming machine controls the conveying device 1, the feeding device 2, the first welding device 3, the second welding device 4, the first rubberizing device 5, the second rubberizing device 6, the bending device 7, the blanking device 8, the multi-layer tab cutting device 9, the testing device 11 and the buffer device 12 to operate so as to achieve the effect of automatic control of the tab welding forming machine. Of course, the control system of the tab welding forming machine can be any one of an industrial personal computer, a PLC or a singlechip, and will not be described herein.

In summary, in one or more embodiments of the present invention, the tab welding forming machine of the present invention reduces a lot of manpower required in the existing production mode, has a good degree of automation, occupies a smaller space than a plurality of devices, improves the production efficiency, reduces the production cost of enterprises, and has high precision and uniform quality of the processed product.

The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present invention, should be included in the scope of the claims of the present invention.

Claims (6)

1. A tab welding forming machine is characterized by comprising: the device comprises a conveying device (1), a feeding device (2), a first welding device (3), a second welding device (4), a first rubberizing device (5), a second rubberizing device (6), a bending device (7) and a discharging device (8); the feeding device (2), the first welding device (3), the second welding device (4), the first rubberizing device (5), the second rubberizing device (6), the bending device (7) and the blanking device (8) are sequentially arranged at positions corresponding to the jig (1002) of the conveying device (1);

wherein, the feeding device (2) provides an electric core to a jig (1002) of the conveying device (1); the conveying device (1) conveys the battery core to a plurality of processing stations corresponding to the first welding device (3), the second welding device (4), the first rubberizing device (5), the second rubberizing device (6), the bending device (7) and the blanking device (8);

The first welding device (3) comprises a welding supporting plate (31), a lug supply mechanism (32), a cutting mechanism (33), a welding mechanism (34) and a welding positioning mechanism (35); the welding support plate (31) is arranged on a path of movement of the battery cell; the discharge end of the tab supply mechanism (32) faces the conveying device (1); the cutting mechanism (33) is arranged on the welding supporting plate (31) and faces the discharge end of the tab supply mechanism (32); the welding mechanism (34) is arranged on the welding supporting plate (31), and the welding end face of the welding mechanism faces the conveying device (1); the welding positioning mechanism (35) is arranged on a path of the movement of the lug; the welding positioning mechanism (35) comprises a positioning support seat (351), a movable positioning assembly (352) and a positioning pushing block assembly (353), wherein the positioning support seat (351) is arranged on the welding support plate (31), the positioning support seat (351) is positioned between the cutting mechanism (33) and the welding mechanism (34), the movable positioning assembly (352) is arranged on the positioning support seat (351), and the positioning pushing block assembly (353) is arranged on the movable positioning assembly (352); the movable positioning assembly (352) comprises a movable positioning cylinder (3521), a movable positioning plate (3522), a pressing block cylinder (3523) and a pressing block (3524), the positioning pushing block assembly (353) comprises a positioning pushing block (3531), the movable positioning plate (3522) is provided with a first sucker (35221), the positioning pushing block (3531) is provided with a second sucker (35311), and regular positioning holes (35312) are formed in the upper parts of the first sucker (35221) and the second sucker (35311); the positioning pushing block (3531) is provided with a gauge block (35315); carrying the cut tab to a corresponding regular positioning hole (35312); thirdly, the movable positioning air cylinder (3521) drives the movable positioning plate (3522) to drive the positioning pushing block assembly 353 to move upwards, at the moment, the first sucker (35221) and the second sucker (35311) simultaneously generate suction to suck the lug, and the first sucker (35221) and the second sucker (35311) suck the lug; then, a positioning pushing block cylinder (3532) drives a positioning pushing block (3531) to move, a pressing block cylinder (3523) drives a pressing block (3524) to press the lug downwards, and a gauge block (35315) carries out positioning adjustment on the lug in a regular positioning hole (35312);

The first rubberizing device (5) comprises a gummed paper mounting plate (51), a gummed paper unreeling mechanism (52), a gummed paper clamping mechanism (53), a gummed paper compressing mechanism (54), a gummed paper cutting mechanism (55) and a gummed paper absorbing mechanism (56); the gummed paper mounting plate (51) corresponds to the conveying device (1); the gummed paper unreeling mechanism (52), the gummed paper clamping mechanism (53), the gummed paper compressing mechanism (54), the gummed paper cutting mechanism (55) and the gummed paper absorbing mechanism (56) are sequentially arranged on the gummed paper mounting plate (51) and face the conveying device (1);

The bending device (7) comprises a bending support frame (71), an upper die mechanism (72) and a lower die mechanism (73); the bending support frame (71) is arranged on a path of movement of the battery cell; the upper die mechanism (72) and the lower die mechanism (73) are oppositely arranged on the bending support frame (71).

2. The tab welding forming machine according to claim 1, wherein the conveying device (1) comprises a rotating member (1001) and a jig (1002); the jig (1002) is disposed on the rotating member (1001).

3. The tab welding forming machine according to claim 1, wherein the feeding device (2) comprises a feeding conveying member (21), a transfer mechanism (22) and a feeding manipulator (23); the feeding conveying piece (21) is arranged at a position corresponding to the jig (1002); the transfer mechanism (22) is arranged at the side close to the discharge end of the feeding conveying piece (21); the feeding manipulator (23) is arranged between the transfer mechanism (22) and the conveying device (1).

4. A tab welding forming machine according to claim 1 or 3, further comprising a buffer device (12), wherein the buffer device (12) is arranged between the conveying device (1) and the feeding device (2).

5. The tab welding forming machine according to claim 1, further comprising a multi-layered tab cutting device (9); the multi-layer tab cutting device (9) is arranged at a position corresponding to the jig (1002) and is positioned on a path of movement of the battery cell.

6. The tab welding forming machine according to claim 1, further comprising a testing device (11); the testing device (11) is arranged at a position corresponding to the jig (1002) and is positioned on a path of movement of the battery cell.