CN109802087B - A kind of pole ear welding forming machine - Google Patents

Abstract

The present invention discloses a tab welding forming machine, which includes a conveying device, a feeding device, a first welding device, a second welding device, a first gluing device, a second gluing device, a bending device and a feeding device; the feeding device, the first welding device, the second welding device, the first gluing device, the second gluing device, the bending device and the feeding device are sequentially arranged at the position of the jig corresponding to the conveying device; wherein the feeding device provides the battery cell to the jig of the conveying device; the conveying device conveys the battery cell to a plurality of processing stations corresponding to the first welding device, the second welding device, the first gluing device, the second gluing device, the bending device and the feeding device. The tab welding forming machine of the present invention reduces a large amount of manpower required in the existing production mode, has a good degree of automation, and occupies less space than multiple devices, improves production efficiency while reducing the production cost of the enterprise, and the processed products have high precision and uniform quality.

Description

A kind of pole ear welding forming machine

Technical Field

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

Background technique

Power batteries are the power source that provides power for tools. During the production process of power batteries, the battery cells need to be welded with tabs. After the tab welding is completed, a series of processing such as gluing and bending is required. However, currently, a series of processing usually requires two or more devices to complete. The completed semi-finished products need to be manually transported to the production equipment of the next process. This production method requires a lot of manual cooperation, has low production efficiency, and multiple devices occupy a larger production space, which increases the production cost of the enterprise.

Summary of the invention

In view of the shortcomings of the prior art, the present invention discloses a tab welding forming machine, which comprises: a conveying device, a loading device, a first welding device, a second welding device, a first gluing device, a second gluing device, a bending device and a unloading device; the loading device, the first welding device, the second welding device, the first gluing device, the second gluing device, the bending device and the unloading device are sequentially arranged at the positions of the jigs corresponding to the conveying device; wherein the loading device provides the battery cells to the jigs of the conveying device; the conveying device conveys the battery cells to a plurality of processing stations corresponding to the first welding device, the second welding device, the first gluing device, the second gluing device, the bending device and the unloading device.

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

According to one embodiment of the present invention, the above-mentioned loading device includes a loading conveyor, a transfer mechanism and a loading robot; the loading conveyor is arranged at the position corresponding to the fixture; the transfer mechanism is arranged on the discharge end side close to the loading conveyor; the loading robot is arranged between the transfer mechanism and the conveying device.

According to one embodiment of the present invention, the tab welding and forming machine further includes a buffer device, which is arranged at a position corresponding to the jig and is located on a path for the battery cell to move.

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

According to one embodiment of the present invention, the above-mentioned 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 path of movement 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 its welding end faces the conveying device.

According to an embodiment of the present invention, the first welding device further comprises a welding positioning mechanism; the welding positioning mechanism is arranged on the welding support plate, and the welding positioning mechanism is arranged on the path where the tab moves.

According to one embodiment of the present invention, the above-mentioned first gluing device includes a tape installation plate, a tape unwinding mechanism, a tape clamping mechanism, a tape pressing mechanism, a tape cutting mechanism and a tape suction mechanism; the tape installation plate corresponds to the conveying device; the tape unwinding mechanism, the tape clamping mechanism, the tape pressing mechanism, the tape cutting mechanism and the tape suction mechanism are sequentially arranged on the tape installation and face the conveying device.

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

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

The beneficial effects of the present invention are as follows: the tab welding forming machine of the present invention reduces a large amount of manpower required in the existing production mode, has a good degree of automation, and occupies less space than multiple devices, thereby improving production efficiency while reducing the production cost of the enterprise, and the processed products have high precision and uniform quality.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

FIG1 is a top view of a tab welding forming machine according to an embodiment of the present invention;

FIG2 is a schematic structural diagram of a transfer mechanism in an embodiment of the present invention;

FIG3 is a schematic structural diagram of a first welding device according to an embodiment of the present invention;

FIG4 is a schematic structural diagram of a welding positioning mechanism according to an embodiment of the present invention;

FIG5 is another schematic structural diagram of the welding positioning mechanism according to an embodiment of the present invention;

FIG6 is a cross-sectional view of a positioning push block according to an embodiment of the present invention;

FIG7 is a schematic structural diagram of a first gluing device according to an embodiment of the present invention;

FIG8 is another schematic structural diagram of the first glue sticking device according to an embodiment of the present invention;

FIG9 is a schematic structural diagram of a bending device according to an embodiment of the present invention;

FIG10 is another schematic diagram of the structure of the bending device in an embodiment of the present invention;

FIG11 is a schematic diagram of the structure of a testing device according to an embodiment of the present invention;

FIG12 is a schematic diagram of the structure of a cache device according to an embodiment of the present invention;

FIG. 13 is another schematic diagram of the structure of the cache device in an embodiment of the present invention.

Detailed ways

The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

Please refer to Figure 1, which is a top view of the tab welding and forming machine in an embodiment of the present invention. As shown in the figure, the tab welding and forming machine of the present application includes a conveying device 1, a feeding device 2, a first welding device 3, a second welding device 4, a first gluing device 5, a second gluing device 6, a bending device 7 and a feeding device 8. The feeding device 2, the first welding device 3, the second welding device 4, the first gluing device 5, the second gluing device 6, the bending device 7 and the feeding device 8 are sequentially arranged at the position of the jig 1002 corresponding to the conveying device 1.

Preferably, the tab welding 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 fixture 1002, and the multi-layer tab cutting device 9 is located between the feeding device 2 and the first welding device 3, that is, on the path of the battery cell movement.

Preferably, the tab welding machine further comprises a testing device 11. The testing device 11 is arranged at a position corresponding to the jig 1002, and the testing device 11 is located between the bending device 7 and the unloading device 8, that is, on the path where the battery cell moves.

Preferably, the tab welding and 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 is working, first, the loading device 2 provides the battery cells to the conveying device 1; secondly, the conveying device 1 sequentially conveys the battery cells to the corresponding multi-layer tab cutting device 9, the first welding device 3, the second welding device 4, the first gluing device 5, the second gluing device 6, the bending device 7 and the testing device 11 for multiple processing stations to perform the tab and the positive electrode welding of the battery cell, the tab and the negative electrode welding of the battery cell, the positive electrode gluing tape, the negative electrode gluing tape, the tab bending and the battery cell testing; finally, the unloading device 8 unloads and collects the processed products. Among them, when the previous machine that feeds the feeding device 2 fails, the tab welding and forming machine issues an alarm to remind the user. At this time, the buffer device 12 replaces the feeding device 2 to provide battery cells to the conveying device 1, and the tab welding and forming machine can continue to operate normally. After the user eliminates the fault, the tab welding and forming machine resumes normal operation; when any device other than the feeding device 2 fails, the tab welding and forming machine issues an alarm to remind the user. At this time, the battery cells provided by the feeding device 2 are transported to the buffer device 12 for caching by the material transfer robot. After the user eliminates the fault, the tab welding and forming machine resumes normal operation.

In specific application, the conveying device 1 includes a rotating member 1001 and a jig 1002. The jig 1002 is arranged on the rotating member 1001, and each jig 1002 is conveyed to one of the multiple processing stations corresponding to the loading device 2, the first welding device 3, the second welding device 4, the first gluing device 5, the second gluing device 6, the bending device 7 and the unloading device 8 through the rotating member 1001. In this embodiment, the rotating member 1001 uses a driving motor to drive the turntable to rotate, so as to realize the sequential transmission of the jig 1002 to the processing stations of each device. Of course, the rotating member 1001 can also use other methods. The above is only one embodiment of the present invention and should not be limited to this. Preferably, each jig 1002 has a receiving groove matching the shape of the battery cell, and each jig 1002 also has a clamping assembly, and the clamping assembly includes a clamping cylinder and a pressing plate. When the battery cell is placed in the receiving groove, the clamping cylinder drives the pressing plate to fix the battery cell in a predetermined position.

Referring to FIG. 2 , it is a schematic diagram of the structure of the transfer mechanism 22 in an embodiment of the present invention. As shown in the figure, the feeding device 2 includes a feeding conveyor 21, a transfer mechanism 22 and a feeding robot 23. The feeding conveyor 21 is arranged at a position corresponding to the jig 1002. The transfer mechanism 22 is arranged on a side close to the discharge end of the feeding conveyor 21, and the transfer mechanism 22 is located between the feeding conveyor 21 and the conveying device 1. The feeding robot 23 is arranged 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 member 221 is arranged on a side close to the discharge end of the feeding conveyor 21, and the transfer member 221 is located between the feeding conveyor 21 and the conveying device 1. The transfer table 222 is arranged between the transfer member 221 and the feeding robot 23. Furthermore, the transfer member 221 includes a transfer bracket 2211, a first transfer motor 2212, a first lead screw 2213, a sliding plate 2214, a second transfer motor 2215, a second lead screw 2216 and a suction cup 2217. The transfer bracket 2211 is arranged on a side close to the discharge end of the loading conveyor 21, and the transfer bracket 2211 is located between the loading conveyor 21 and the transfer table 222. The first transfer motor 2212 is arranged on the transfer bracket 2211. The first lead screw 2213 is arranged on the transfer bracket 2211 through two bearing seats, and one end of the first lead screw 2213 is connected to the output end of the first transfer motor 2212. The sliding plate 2214 is slidably arranged on the transfer bracket 2211 through a guide rail slider, and the sliding plate 2214 is also connected to the lead screw nut sleeved on the first lead screw 2213. The second transfer motor 2215 is arranged on the sliding 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 transfer motor 2215. The suction cup 2217 is connected to the lead screw nut sleeved on the second lead screw 2216 through a connecting plate, and the suction side of the suction cup 2217 faces the upward material conveying member 21.

In this embodiment, the loading conveyor 21 uses a motor-driven conveying wheel to realize the loading and conveying of the battery cells, and the loading robot 23 uses a three-axis robot to realize the transportation of the battery cells. Of course, the loading conveyor 21 can also be selected from other options, and the loading robot 23 can also be selected from other robots. The above is only one embodiment of the present invention and should not be limited to this.

Preferably, the transfer mechanism 22 further includes a transfer dust removal brush 223. The transfer dust removal brush 223 is disposed between the transfer member 221 and the transfer platform 222.

In specific application, first, the motor drives the conveyor belt to rotate, thereby transferring the battery cells placed on the conveyor belt to the work station of the transfer mechanism 22; secondly, the first transfer motor 2212 drives the first lead screw 2213 to rotate, thereby driving the suction cup 2217 on the sliding plate 2214 to move toward the battery cells and absorb the battery cells, and then, the first transfer motor 2212 drives the suction cup 2217 that has absorbed the battery cells to restore the initial position; thirdly, the second transfer motor 2215 drives the second lead screw 2216 to rotate, thereby driving the suction cup 2217 that has absorbed the battery cells to move toward the transfer table 222. During the movement, the side of the battery cells that has not been absorbed passes through the transfer dust removal brush 223, and the transfer dust removal brush 223 applies dust to the battery cells. After dust removal and cleaning, it is moved to the transfer table 222. Finally, the loading robot 23 sucks the battery cell on the transfer table 222 and transports it to a receiving groove of a fixture 1002. Preferably, an image sensor is provided below the path where the loading robot 23 sucks the battery cell and moves it to the fixture 1002. The image sensor captures the image of the position of the battery cell and feeds it back to the control system of the tab welding forming machine for judgment. If the battery cell is located at the predetermined position, the loading robot 23 transports the battery cell to the receiving groove; if the battery cell is not within the predetermined position range, the loading robot 23 moves the battery cell directly to the turnover box 15 provided below the loading robot 23. Specifically, the image sensor is a CCD camera.

In specific application, the structures and operating principles of the first welding device 3 and the second welding device 4 are consistent. Hereinafter, the present invention takes the first welding device 3 as an example to specifically illustrate the structures and operating principles of the first welding device 3 and the second welding device 4.

Referring to FIG. 3 , it is a schematic diagram of the structure of the first welding device 3 in an embodiment of the present invention. As shown in the figure, the first welding device 3 includes a welding support plate 31, a tab supply 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 located between the feeding device 2 and the second welding device 4. The tab supply mechanism 32 is arranged at a position corresponding to the jig 1002, and the discharge end of the tab supply mechanism 32 faces the conveying device 1. The cutting mechanism 33 is arranged on the welding support plate 31, and the cutting mechanism 33 faces the discharge end of the tab supply mechanism 32. The welding mechanism 34 is arranged on the welding support plate 31, and the welding end of the welding mechanism 34 faces the conveying device 1. Further, the tab supply mechanism 32 includes a rolled tab material tray 321, a plurality of conveying rollers 322 and a driving roller 323. The rolled tab material tray 321 is rotatably arranged on the welding support plate 31. A plurality of transmission rollers are arranged on the welding support plate 31, and the plurality of transmission rollers are parallel to the rolled pole lug material tray 321. A driving roller 323 is arranged on the welding support plate 31, and the driving roller 323 is parallel to the plurality of transmission rollers. In specific application, one end of the rolled pole lug is sequentially wound around a plurality of conveying rollers 322 and a driving roller 323 and passes through a cutting mechanism 33. Furthermore, the cutting mechanism 33 includes a cutting frame 331, a fixed cutting knife 332, a cutting cylinder 333 and a movable cutting knife 334. The cutting frame 331 is arranged on the welding support plate 31, and the cutting frame 331 is located between the pole lug supply mechanism 32 and the welding mechanism 34. The fixed cutting knife 332 is arranged on the cutting frame 331. The cutting cylinder 333 is arranged on the cutting frame 331, and the output end of the cutting cylinder 333 faces the fixed cutting knife 332. The movable cutting knife 334 is arranged at the output end of the cutting cylinder 333, and the movable cutting knife 334 is movably connected to the fixed cutting knife 332. Furthermore, the welding mechanism 34 includes a welding seat 341 and a welding head 342. The welding seat 341 is arranged 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 arranged on the welding support plate 31, and the welding head 342 faces the welding seat 341.

Preferably, the first welding device 3 further comprises a welding positioning mechanism 35. The welding positioning mechanism 35 is arranged on 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, FIG. 4 is a schematic diagram of the structure of the welding positioning mechanism 35 in an embodiment of the present invention, FIG. 5 is another schematic diagram of the structure of the welding positioning mechanism 35 in an embodiment of the present invention, and FIG. 6 is a cross-sectional view of the positioning push block 3531 in an embodiment of the present invention. As shown in the figure, the welding positioning mechanism 35 comprises a positioning support seat 351, a movable positioning assembly 352 and a positioning push block assembly 353. The positioning support seat 351 is arranged on the welding support plate 31, and the positioning support seat 351 is located between the cutting mechanism 33 and the welding mechanism 34. The movable positioning assembly 352 is arranged on the positioning support seat 351. The positioning push block assembly 353 is arranged on the movable positioning assembly 352. Further, 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 mobile positioning cylinder 3521 is arranged on the positioning support seat 351, and the output end of the mobile positioning cylinder 3521 faces the positioning push block assembly 353. The mobile positioning plate 3522 is L-shaped, and the horizontal side of the mobile positioning plate 3522 is arranged on the output end of the mobile positioning cylinder 3521. The pressing block cylinder 3523 is arranged on the positioning support seat 351, and the output end of the pressing block cylinder 3523 penetrates the vertical side of the mobile positioning plate 3522 and connects to the pressing block 3524, and the pressing block 3524 is movably connected to the vertical side of the mobile positioning plate 3522. Further, the positioning push block assembly 353 includes a positioning push block 3531, a positioning push block cylinder 3532 and a positioning push block fixing plate 3533. The positioning push block 3531 is L-shaped, and the horizontal side of the positioning push block 3531 penetrates the vertical side of the mobile positioning plate 3522, and the horizontal side of the positioning push block 3531 is slidably arranged on the horizontal side of the mobile positioning plate 3522 through a slide rail. The positioning push block cylinder 3532 is arranged on the movable positioning plate 3522, and the positioning push block cylinder 3532 is located on one side of the horizontal side of the positioning push block 3531, and its output end faces the vertical side of the positioning push block 3531. The positioning push block fixing plate 3533 is arranged on the horizontal side of the positioning push block 3531, and the positioning push block fixing plate 3533 is connected to the output end of the positioning push block cylinder 3532 through the slider push block 3534. Preferably, an elastic member such as a spring is arranged between the positioning push block fixing plate 3533 and the slider push block. In specific application, the top of the vertical side of the movable positioning plate 3522 has a first suction cup 35221, and the top of the vertical side of the positioning push block 3531 has a second suction cup 35311. The first suction cup 35221 and the second suction cup 35311 are both provided with regular positioning holes 35312 above, and preferably, the regular positioning holes 35312 are inverted isosceles trapezoids. The positioning push block 3531 has an air passage 35313, a piston rod 35314 is provided in the air passage 35313, the piston rod 35314 is connected to a regular block 35315, and the regular block 35315 is located on one side of the second suction cup 35311. Preferably, an elastic member, such as a spring, is provided at one end of the piston rod 35314 to facilitate the piston rod 35314 to push the regular block 35315 to reset after positioning the tab. Preferably, the positioning push block 3531 also has a stopper 35316, which covers the regular block 35315 to prevent it from popping out or falling off.

When the first welding device 3 is working, first, one end of the rolled pole ear is wound around a plurality of conveying rollers 322 and a driving roller 323 in sequence and passed through between the fixed cutting knife 332 and the movable cutting knife 334 to be clamped by the first material clamp; secondly, the cutting cylinder 333 drives the movable cutting knife 334 to move toward the fixed cutting knife 332, and the two cooperate to cut the rolled pole ear into a predetermined length, and then the material clamp transports the cut pole ear to the corresponding regular positioning hole 35312; thirdly, the movable positioning cylinder 3521 drives the movable positioning plate 3522 to drive the positioning push block assembly 353 to move upward, and at this time, the first suction cup 35221 and the second suction cup 35311 simultaneously generate suction to suck the pole ear, and the first suction cup 35221 and the second suction cup 35311 simultaneously generate suction to suck the pole ear. After the suction cup 35311 sucks the pole ear, the first material clamp 36 returns to its initial state and clamps the next cut pole ear; then, the positioning push block cylinder 3532 drives the positioning push block 3531 to move, shortening the distance between the vertical side of the movable positioning plate 3522 and the vertical side of the positioning push block 3531, and at the same time, the pressing block cylinder 3523 drives the pressing block 3524 to press down the pole ear, and the airway 35313 pushes the piston rod 35314 to drive the regular block 35315 to position and adjust the pole ear in the regular positioning hole 35312; finally, after positioning, the second material clamp 37 moves the pole ear to the welding seat 341, and the welding head 342 welds the pole ear to the predetermined position of the battery cell transmitted by the fixture 1002. Preferably, a dust removal part is provided at both the cutting mechanism 33 and the welding mechanism 34, and the dust removal part is an air pipe, and the air pipe generates suction to suck away the dust.

In specific applications, the structure and operating principle of the multi-layer tab cutting device 9 are consistent with those of the cutting mechanism 33, and will not be described in detail. The multi-layer tab cutting device 9 can cut the multi-layer tabs at one time.

In specific application, the structures and operating principles of the first gluing device 5 and the second gluing device 6 are consistent. Hereinafter, the present invention takes the first gluing device 5 as an example to specifically illustrate the structures and operating principles of the first gluing device 5 and the second gluing device 6.

Referring to FIG. 7 and FIG. 8 , FIG. 7 is a schematic diagram of the structure of the first gluing device 5 in an embodiment of the present invention, and FIG. 8 is another schematic diagram of the structure of the first gluing device 5 in an embodiment of the present invention. As shown in the figure, the first gluing device 5 includes a tape installation plate 51, a tape unwinding mechanism 52, a tape clamping mechanism 53, a tape pressing mechanism 54, a tape cutting mechanism 55, and a tape suction mechanism 56. The tape installation plate 51 is arranged at a position corresponding to the jig 1002, and the tape installation plate 51 is located between the second welding device 4 and the second gluing device 6. The tape unwinding mechanism 52, the tape clamping mechanism 53, the tape pressing mechanism 54, the tape cutting mechanism 55, and the tape suction mechanism 56 are arranged on the tape installation plate 51 in sequence and face the jig 1002. Further, the tape clamping mechanism 53 includes a clamping drive motor 531, two clamping cylinders 532, and two clamping plates 533. The clamping drive motor 531 is arranged on the adhesive tape mounting plate 51, and the output end of the clamping drive motor 531 is connected to a ball screw. Two clamping cylinders 532 are arranged on the ball screw through the mounting plate. Two clamping plates 533 are respectively arranged at the output ends of the two clamping cylinders 532. Further, the adhesive tape pressing mechanism 54 includes a pressing cylinder 541 and a pressing block 542. The pressing cylinder 541 is arranged on the adhesive tape mounting plate 51. The pressing block 542 is arranged at the output end of the pressing cylinder 541. Further, the adhesive tape cutting mechanism 55 includes two fixed cylinders 551, two fixed blocks 552, an adhesive tape cutting cylinder 553 and an adhesive tape cutting knife 554. The two fixed cylinders 551 are relatively arranged on the adhesive tape mounting plate 51. The two fixed blocks 552 are respectively arranged at the output ends of the two fixed cylinders 551. The adhesive tape cutting cylinder 553 is arranged on the adhesive tape mounting plate 51. The adhesive tape cutting knife 554 is arranged at the output end of the adhesive tape cutting cylinder 553. Furthermore, the adhesive tape suction mechanism 56 includes an adhesive tape suction driving motor 561, a suction cylinder 562 and a suction head 563. The adhesive tape suction driving motor 561 is arranged on the adhesive tape mounting plate 51, and a ball screw is connected to the output end of the adhesive tape suction driving motor 561. The suction cylinder 562 is arranged on the adhesive tape mounting plate 51 through a mounting plate. The suction head 563 is arranged at the output end of the suction cylinder 562.

In specific application, the welded tab is driven by the fixture 1002 to the workstation of the first glue sticking device 5. First, the adhesive tape unwinding mechanism 52 unwinds the adhesive tape, and the two clamping cylinders 532 drive the two clamping plates 533 to clamp one end of the rolled adhesive tape. Then, the clamping drive motor 531 drives the two clamping cylinders 532 and the two clamping plates 533 to move, and pull the adhesive tape to a predetermined position. During the movement of the adhesive tape, it passes through the guide plate set on the adhesive tape mounting plate 51; secondly, the pressing cylinder 541 drives the pressing block 542 to press on the guide plate to press the adhesive tape, and then, the two fixed blocks 552 clamp and fix the adhesive tape under the drive of the two fixed cylinders 551; again, the suction head 563 sucks the adhesive tape under the drive of the suction cylinder 562, and then, the adhesive tape cutting cylinder 553 drives the adhesive tape cutting knife 554 to cut the adhesive tape; finally, the driving motor of the adhesive tape suction mechanism 56 drives the suction head 563 that sucks the adhesive tape to move to the pole ear to realize the adhesive tape sticking.

Referring to FIG. 9 and FIG. 10 , FIG. 9 is a schematic diagram of the structure of the bending device 7 in an embodiment of the present invention, and FIG. 10 is another schematic diagram of the structure of the bending device 7 in an embodiment of the present invention. As shown in the figure, the bending device 7 includes a bending support frame 71, an upper mold mechanism 72 and a lower mold mechanism 73. The bending support frame 71 is arranged at a position corresponding to the jig 1002, and the bending support frame 71 is located between the second gluing device 6 and the unloading device 8. The upper mold mechanism 72 and the lower mold mechanism 73 are arranged on the bending support frame 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 pressing block 724. The upper die motor 721 is arranged on the bending support frame 71. The upper die mounting plate 722 is slidably arranged on the bending support frame 71 through a slide rail, and the upper die mounting plate 722 is connected to the output end of the upper die motor 721 through a ball screw. The fixed seat 723 is arranged on the upper die mounting plate 722, and the fixed seat 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 fixed seat 723 and the shaft sleeve. Preferably, the upper die mechanism 72 also includes an upper die sensor 725, which is arranged on the bending support frame 71, and the upper die sensor 725 is used to sense the position of the upper pressing block 724 to improve the bending accuracy.

Furthermore, 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 arranged on the bending support frame 71. The lower die mounting plate 732 is slidably arranged on the bending support frame 71 through a slide rail, and the lower die mounting plate 732 is connected to the output end of the lower die motor 731 through a ball screw. The two fixed blocks 733 are arranged on the lower die mounting plate 732. The lower pressing block 734 is rotatably arranged on the two fixed blocks 733 through a rotating shaft. The two movable blocks 735 are respectively sleeved on both ends of the rotating shaft, and one of the two movable blocks 735 is connected to the bending support frame 71 through a spring. The bending cylinder 736 is arranged on the lower die mounting plate 732, and the output end of the bending cylinder 736 is movably connected to the other movable block of the two movable blocks 735 that is not connected to the spring through a push block. Preferably, the lower die mechanism 73 further includes a lower die sensor 737 , which is disposed on the bending support frame 71 . The lower die sensor 737 is used to sense the position of the lower pressing block 734 to improve the bending accuracy.

In specific application, the side of the lower pressing block 734 in contact with the battery cell has a 90-degree notch, the upper surface of the lower pressing block 734 has a certain inclination angle, and the jig 1002 has a pressing knife. First, when the pole ear reaches the predetermined position, the pressing knife presses the pole ear, and the lower mold motor 731 drives the lower mold mounting plate 732 to move toward the pole ear, thereby driving the lower pressing block 734 to abut the pole ear, and then, the upper mold motor 721 drives the upper mold mounting plate 722 to drive the fixing seat 723 to drive the upper pressing block 724 to move a certain distance toward the pole ear, so that when the lower pressing block 734 moves up to bend the pole ear, the pole ear will not bend upward all the time under the obstruction of the upper pressing block 724, which is convenient for subsequent bending; secondly, the lower mold motor 731 continues to drive the lower mold mounting plate 732 to move toward the pole ear. The upper pressing block 724 moves toward the pole ear. Since the lower pressing block 734 rotates a certain angle and its upper surface is tilted, the tilt angle of the upper surface of the lower pressing block 734 is the same as its rotation angle, so that the pole ear is folded into a second bend, and the two bends are at an angle of 90 degrees. Finally, after the bending is completed, the upper mold mechanism 72 and the lower mold mechanism 73 are restored to their initial states, and the spring is restored to its unstretched state. The spring elastic force drives the lower pressing block 734 to restore its initial state, waiting for the next bending.

In specific application, the unloading device 8 includes an unloading robot 81 and an unloading conveyor 82. The structure and operation principle of the unloading robot 81 and the unloading conveyor 82 are the same as the structure and operation principle of the loading robot 23 and the loading conveyor 21, and will not be repeated here.

Referring to FIG. 11 , it is a schematic diagram of the structure of the test device 11 in an embodiment of the present invention. As shown in the figure, the test device 11 includes at least one test mechanism 111, a test dust removal mechanism 112 and a discharging mechanism 113. At least one test mechanism 111 is arranged between the unloading manipulator 81 and the unloading conveyor 82. The test dust removal mechanism 112 is located between the at least one test mechanism 111 and the unloading manipulator 81. The discharging mechanism 113 is arranged on a side close to the feeding end of at least one test mechanism 111, and the discharging end of the discharging mechanism 113 faces the unloading conveyor 82. Further, a single test mechanism 111 includes a test frame 1111, a transfer platform 1112 and a test piece 1113. The test frame 1111 is arranged between the unloading manipulator 81 and the unloading conveyor 82. The transfer platform 1112 is slidably arranged on the test frame 1111 through a slide rail. The test piece 1113 is arranged above the transfer platform 1112 through a gantry bracket. In this embodiment, the number of the test mechanisms 111 is two, and the two test mechanisms 111 are arranged in parallel. Of course, the number of the test mechanisms 111 can be increased or decreased according to demand. The above is only one embodiment of the present invention and should not be limited to this. Furthermore, the test dust removal mechanism 112 includes a dust removal fan 1121, and the dust removal fan 1121 faces the discharging mechanism 113. Furthermore, the discharging mechanism 113 includes a discharging bracket 1131 and a discharging clamp 1132. The discharging bracket 1131 is arranged on one side close to the feeding end of at least one test mechanism 111. The discharging clamp 1132 is slidably arranged on the discharging bracket 1131 through a slide rail, and the discharging clamp 1132 is driven by a discharging cylinder arranged on the discharging bracket 1131 to move up and down.

In specific application, the fixture 1002 drives the battery cell to move to the workstation of the test device 11, and the unloading robot 81 moves the battery cell to the transfer platform 1112. During the movement, the image sensor arranged below the material transfer path of the unloading robot 81 collects the image of the battery cell adhesive tape sucked by the unloading robot 81, and feeds it back to the control system of the tab welding forming machine for judgment. If the battery cell adhesive tape is missing, the unloading robot 81 directly moves the defective battery cell to the turnover box 15 set on the test rack 1111; if the battery cell is qualified, the unloading robot 81 moves the good battery cell to the transfer platform 1112, and the transfer platform 11 12 is driven by the motor to slide to the bottom of the test piece 1113, and the test piece 1113 performs a short circuit test on the battery cell. After the test is completed, the transfer platform 1112 drives the battery cell to move to the initial position, and the discharge clamp 1132 moves to the mobile platform to clamp the battery cell. If the battery cell test is qualified, the discharge clamp 1132 drives the battery cell to move above the dust removal fan 1121 for dust removal, and then moves it to the unloading conveyor 82, and the unloading conveyor 82 unloads the qualified battery cell; if the battery cell test is unqualified, the discharge clamp 1132 clamps the battery cell and directly moves it to the turnover box 15 provided next to the discharge bracket 1131. Preferably, a mobile platform dust removal brush 11121 is provided on the test stand 1111, and each time the discharge clamp 1132 moves the battery cell, it clamps the mobile platform dust removal brush 11121 to remove dust from the transfer platform 1112. Preferably, the test piece 1113 also has a dust removal piece, which is an air pipe, and the air pipe generates suction to suck away the dust.

Referring to FIG. 12 and FIG. 13 , FIG. 12 is a schematic diagram of the structure of the cache device 12 in an embodiment of the present invention, and FIG. 13 is another schematic diagram of the structure of the cache device 12 in an embodiment of the present invention. As shown in the figure, the cache device 12 includes a cache rack 121, a plurality of cache tray mechanisms 122, and a cache clamping mechanism 123. The cache rack 121 is arranged between the conveying device 1 and the feeding device 2. A plurality of cache tray mechanisms 122 are arranged on the cache rack 121 in sequence from top to bottom. The cache clamping mechanism 123 is arranged on the cache rack 121, and the cache clamping mechanism 123 clamps the battery cells on the feeding conveyor 21 to the plurality of cache tray mechanisms 122 for caching. Furthermore, a single cache tray mechanism 122 includes a moving cylinder 1221, a tray 1222, and a lifting motor 1223. The moving cylinder 1221 is arranged on the cache rack 121, and preferably, the moving cylinder 1221 is a rodless cylinder. The tray 1222 is arranged on the piston of the rodless cylinder, the lifting motor 1223 is arranged on the cache rack 121, and the lifting motor 1223 is connected to the tray 1222 through a ball screw. Furthermore, the cache clamping mechanism 123 includes a lateral moving component 1231, a longitudinal moving component 1232 and a vertical moving component 1233. The lateral moving component 1231 is arranged on the cache rack 121. The longitudinal moving component 1232 is arranged on the lateral moving component 1231. The vertical moving component 1233 is arranged on the lateral moving component 1231. In specific applications, the transverse motor of the transverse moving component 1231 drives the longitudinal moving component 1232 to achieve transverse movement through a roller screw, and the longitudinal motor of the longitudinal moving component 1232 drives the vertical moving component 1233 to achieve longitudinal movement through a roller screw. The vertical cylinder of the vertical moving component 1233 drives the suction plate 1234 arranged at the output end of the vertical cylinder to achieve vertical movement, thereby realizing the clamping and transportation of the battery cells to the tray 1222 for caching. Of course, the cache clamping mechanism 123 can also use a three-axis manipulator with the hand as the suction plate 1234.

When the loading device 2 fails and battery cells need to be cached, the moving cylinder 1221 drives the tray 1222 to move to the working position of the cache clamping mechanism 123. The cache clamping mechanism 123 clamps the battery cells and places them into multiple battery cell slots of the tray 1222 for cache. When a tray 1222 is full, the lifting motor 1223 lowers the tray 1222 for storage and replaces it with a new tray 1222. When the battery cells cached by the cache device 12 are needed, the above action can be reversed.

In specific application, the above-mentioned conveying device 1, feeding device 2, first welding device 3, second welding device 4, first glue sticking device 5, second glue sticking device 6, bending device 7, unloading device 8, multi-layer tab cutting device 9, testing device 11 and buffer device 12 are all electrically connected to the control system of the tab welding forming machine, and the control system of the tab welding forming machine controls the conveying device 1, feeding device 2, first welding device 3, second welding device 4, first glue sticking device 5, second glue sticking device 6, bending device 7, unloading device 8, multi-layer tab cutting device 9, testing device 11 and buffer device 12 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 computer, a PLC or a single-chip microcomputer, which will not be repeated here.

To sum up, in one or more embodiments of the present invention, the tab welding forming machine of the present invention reduces a large amount of manpower required in the existing production model, has a good degree of automation, and occupies less space than multiple devices, thereby improving production efficiency while reducing enterprise production costs. Moreover, the processed products have high precision and uniform quality.

The above is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle 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, characterized in that it comprises: a conveying device (1), a feeding device (2), a first welding device (3), a second welding device (4), a first gluing device (5), a second gluing device (6), a bending device (7) and a feeding device (8); the feeding device (2), the first welding device (3), the second welding device (4), the first gluing device (5), the second gluing device (6), the bending device (7) and the feeding device (8) are sequentially arranged at positions corresponding to the jig (1002) of the conveying device (1); The loading device (2) provides the battery cells to the jig (1002) of the conveying device (1); the conveying device (1) conveys the battery cells to a plurality of processing stations corresponding to the first welding device (3), the second welding device (4), the first gluing device (5), the second gluing device (6), the bending device (7) and the unloading device (8); The first welding device (3) comprises a welding support plate (31), a tab 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 along which the battery core moves; the discharge end of the tab supply mechanism (32) faces the conveying device (1); the cutting mechanism (33) is arranged on the welding support plate (31) and faces the discharge end of the tab supply mechanism (32); the welding mechanism (34) is arranged on the welding support plate (31) and its welding end faces the conveying device (1). The welding positioning mechanism (35) is arranged on a path where the tab moves; the welding positioning mechanism (35) comprises a positioning support seat (351), a movable positioning assembly (352) and a positioning push block assembly (353); the positioning support seat (351) is arranged on the welding support plate (31); the positioning support seat (351) is located between the cutting mechanism (33) and the welding mechanism (34); the movable positioning assembly (352) is arranged on the positioning support seat (351); the positioning push block assembly (353) is arranged on the movable positioning assembly (352); the movable positioning assembly (352) comprises a movable positioning gas The present invention relates to a cylinder (3521), a movable positioning plate (3522), a pressing block cylinder (3523) and a pressing block (3524), wherein the positioning push block assembly (353) includes a positioning push block (3531), the movable positioning plate (3522) has a first suction cup (35221), the positioning push block (3531) has a second suction cup (35311), and the first suction cup (35221) and the second suction cup (35311) are both provided with regular positioning holes (35312) on their upper sides; the positioning push block (3531) has a regular block (35315); the cut pole ear is transported to the corresponding regular positioning hole (35312) ; Again, the mobile positioning cylinder (3521) drives the mobile positioning plate (3522) to drive the positioning push block assembly 353 to move upward. At this time, the first suction cup (35221) and the second suction cup (35311) simultaneously generate suction to suck the pole ear. After the first suction cup (35221) and the second suction cup (35311) suck the pole ear; then, the positioning push block cylinder (3532) drives the positioning push block (3531) to move, and the pressing block cylinder (3523) drives the pressing block (3524) to press down the pole ear, and the regular block (35315) positions and adjusts the pole ear in the regular positioning hole (35312); The first adhesive laminating device (5) comprises an adhesive tape mounting plate (51), an adhesive tape unwinding mechanism (52), an adhesive tape clamping mechanism (53), an adhesive tape pressing mechanism (54), an adhesive tape cutting mechanism (55) and an adhesive tape sucking mechanism (56); the adhesive tape mounting plate (51) corresponds to the conveying device (1); the adhesive tape unwinding mechanism (52), the adhesive tape clamping mechanism (53), the adhesive tape pressing mechanism (54), the adhesive tape cutting mechanism (55) and the adhesive tape sucking mechanism (56) are sequentially arranged on the adhesive tape 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 for the battery core to move; the upper die mechanism (72) and the lower die mechanism (73) are arranged relative to the bending support frame (71). 2. The tab welding forming machine according to claim 1 is characterized in that the conveying device (1) comprises a rotating part (1001) and a jig (1002); the jig (1002) is arranged on the rotating part (1001). 3. The tab welding forming machine according to claim 1 is characterized in that the feeding device (2) includes a feeding conveyor (21), a transfer mechanism (22) and a feeding robot (23); the feeding conveyor (21) is arranged at a position corresponding to the jig (1002); the transfer mechanism (22) is arranged near the discharge end side of the feeding conveyor (21); the feeding robot (23) is arranged between the transfer mechanism (22) and the conveying device (1). 4. The tab welding and forming machine according to claim 1 or 3, characterized in that it also includes a buffer device (12), and the buffer device (12) is arranged between the conveying device (1) and the feeding device (2). 5. The tab welding and forming machine according to claim 1 is characterized in that it also includes 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 is located on the path of movement of the battery cell. 6. The tab welding forming machine according to claim 1 is characterized in that it also includes a testing device (11); the testing device (11) is arranged at a position corresponding to the jig (1002) and is located on the path of movement of the battery cell.