CN221126022U

CN221126022U - Automatic nail puller for lithium battery

Info

Publication number: CN221126022U
Application number: CN202322701289.7U
Authority: CN
Inventors: 黄金福; 孙军辉
Original assignee: Weiguang Automation Equipment Nanjing Co ltd
Current assignee: Weiguang Automation Equipment Nanjing Co ltd
Priority date: 2023-10-09
Filing date: 2023-10-09
Publication date: 2024-06-11
Anticipated expiration: 2033-10-09

Abstract

The utility model relates to the technical field of lithium battery processing equipment, in particular to an automatic nail extractor for a lithium battery. The automatic nail pulling machine for the lithium battery comprises a frame structure, a feeding assembly, a nail pulling assembly, a translation assembly and a collecting funnel. The frame structure is provided with a feeding platform for installing a feeding assembly and a rubber nail recovery area for installing a collecting funnel. The feeding assembly comprises a conveying roller for conveying the battery module. The nail pulling assembly is located above the conveying roller and comprises a connecting frame, a clamping mechanism and a drawing mechanism, wherein the connecting frame is used for connecting the translation assembly. The chuck of the clamping mechanism is connected with a piston rod of the drawing cylinder. The first clamping jaw air cylinder and the second clamping jaw air cylinder are both installed on the chuck and used for driving the clamping jaw units to clamp the sealant nails. The translation assembly is used for driving the nail pulling assembly to move back and forth between the feeding platform and the glue nail recycling area. The automatic nail puller for the lithium battery improves the efficiency of pulling out the sealant nails and ensures the smooth implementation of the formation process of the lithium battery.

Description

Automatic nail puller for lithium battery

Technical Field

The utility model relates to the technical field of lithium battery processing equipment, in particular to an automatic nail extractor for a lithium battery.

Background

In the process of production and processing of the lithium battery, after the assembled battery module is filled with electrolyte, sealing glue nails are required to be installed at the liquid filling openings of the battery module before the battery module is subjected to a formation process because the electrolyte has the characteristic of easy corrosion and easy volatilization. When the battery module needs to implement the formation process, the sealant nails which are installed in the prior art are removed, so that the formation effect of the lithium battery is ensured.

At present, on the lithium battery production line, the pulling-out of the sealant nails on the battery modules still needs manual intervention. For example, the battery module is fed with assistance of manpower, and the sealant nails are manually pulled out one by one. Each battery module is provided with dozens of unequal sealant nails, and taking a battery module with 32 battery units as an example, the battery units are arranged in a rectangular array in a frame structure, and each battery unit is provided with 2 sealant nails. Therefore, the manual pulling-out of the sealant nails has large working quantity, low pulling-out efficiency and even the condition of missing pulling-out can occur, thereby greatly influencing the smooth implementation of the formation process.

Disclosure of Invention

The utility model aims to provide nail pulling equipment for improving the efficiency of pulling out sealant nails in the process of producing lithium batteries and ensuring the smooth implementation of a formation process.

In order to achieve the above purpose, the present utility model adopts the following scheme:

An automatic nail pulling machine for a lithium battery comprises a frame structure, a feeding assembly, a nail pulling assembly, a translation assembly and a collecting funnel;

The frame structure is provided with a feeding platform for installing a feeding assembly and a rubber nail recovery area for installing a collecting funnel;

The feeding assembly comprises a conveying roller for conveying the battery module, and the conveying roller is arranged on the feeding platform;

The nail pulling assembly is positioned above the conveying roller and comprises a connecting frame, a clamping mechanism and a drawing mechanism, wherein the connecting frame is used for connecting the translation assembly, and the clamping mechanism is arranged on the connecting frame through the drawing mechanism;

The drawing mechanism comprises a drawing cylinder, a cylinder body of the drawing cylinder is arranged on the connecting frame, and a piston rod of the drawing cylinder is connected with the clamping mechanism;

The clamping mechanism comprises a chuck, a clamping jaw unit, a first clamping jaw air cylinder and a second clamping jaw air cylinder, wherein the chuck is connected with a piston rod of the drawing air cylinder, the first clamping jaw air cylinder and the second clamping jaw air cylinder are both arranged on the chuck, and the first clamping jaw air cylinder and the second clamping jaw air cylinder are used for driving the clamping jaw unit to clamp sealant nails;

The translation assembly is arranged at the top of the frame structure and used for driving the nail pulling assembly to move back and forth between the feeding platform and the nail recycling area.

As the preference, clamping jaw unit includes first crossbeam, first splint, second crossbeam and second splint, and first crossbeam and second crossbeam are all installed in the bottom of chuck through the slide, and first crossbeam and second crossbeam are laid in parallel, have the centre gripping passageway that is used for the centre gripping sealant nail between first crossbeam and the second crossbeam, and first splint and second splint all are located the centre gripping passageway, and first splint are installed on first crossbeam, and are linear the arranging along the extending direction of first crossbeam, and second splint are installed on the second crossbeam, and with first splint one-to-one, form the draw-in groove that is used for the centre gripping sealant nail between first splint and the second splint.

Preferably, the first clamping jaw cylinder is used for driving the first cross beam to move, the second clamping jaw cylinder is used for driving the second cross beam to move, and the movement direction of the first cross beam is opposite to that of the second cross beam.

Preferably, the tail end of the conveying roller is provided with a limit baffle, and the limit baffle is arranged on the feeding platform.

Preferably, a guide assembly is arranged between the connecting frame and the chuck, the guide assembly comprises a guide shaft, a bearing seat and a linear bearing, one end of the guide shaft is connected with the chuck through the bearing seat, and the other end of the guide shaft is connected with the connecting frame through the linear bearing.

Preferably, the pair of jaw units are symmetrically arranged along a center line of the chuck.

Preferably, the translation assembly is a linear single-shaft module, and the connecting frame is connected with the sliding part of the linear single-shaft module.

Compared with the prior art, the automatic nail puller for the lithium battery has the following substantial characteristics and improvements: this automatic nail pulling machine of lithium cell utilizes the material loading subassembly to transport the battery module that installs the sealed nail to the below of nail pulling subassembly, first clamping jaw cylinder and second clamping jaw cylinder drive clamping jaw unit in the nail pulling subassembly open, drive whole fixture through drawing the cylinder and descend for sealed nail gets into in the clamping unit, first clamping jaw cylinder and second clamping jaw cylinder drive clamping jaw unit shrink simultaneously and form the centre gripping to sealed nail, and the whole fixture of cylinder drive is drawn in the reuse rises, realizes pulling out the batch of sealed nail on the battery module, has improved the efficiency of pulling out sealed nail, has guaranteed the smooth implementation of lithium cell formation technology.

Drawings

Fig. 1 is a schematic perspective view of an automatic nail puller for a lithium battery according to an embodiment of the present utility model.

Fig. 2 is a schematic perspective view of an automatic nail puller for lithium batteries of fig. 1 from another perspective.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a schematic cross-sectional view of fig. 3 at A-A.

Fig. 5 is a schematic perspective view of a nail pulling assembly in an automatic nail pulling machine for lithium batteries according to an embodiment of the utility model.

Fig. 6 is a schematic perspective view of the staple pulling assembly of fig. 5 from another perspective.

Fig. 7 is a front view of the staple pulling assembly of fig. 5.

Fig. 8 is a schematic cross-sectional view of the structure at B-B in fig. 7.

Fig. 9 is a partially enlarged structural schematic diagram at C in fig. 6.

Reference numerals: 1. a frame structure; 2. a feeding assembly; 3. a nail pulling assembly; 4. a translation assembly; 5. a collection funnel; 6. a feeding platform; 7. a tack recovery area; 8. a battery module; 31. a connecting frame; 32. a clamping mechanism; 33. a drawing mechanism; 34. a guide assembly; 321. a chuck; 322. a jaw unit; 323. a first jaw cylinder; 324. a second jaw cylinder; 341. a guide shaft; 342. a bearing seat; 343. a linear bearing; 3221. a first cross beam; 3222. a first clamping plate; 3223. a second cross beam; 3224. a second clamping plate; 3225. a clamping groove.

Detailed Description

The following detailed description of specific embodiments of the utility model refers to the accompanying drawings.

As shown in fig. 1-9, the embodiment of the utility model provides an automatic nail puller for a lithium battery, which aims to improve the efficiency of pulling out sealant nails and ensure the smooth implementation of a formation process.

According to the automatic nail pulling machine for the lithium battery, provided by the embodiment of the utility model, the battery module provided with the sealant nails is conveyed to the lower part of the nail pulling assembly by utilizing the feeding assembly, and the first clamping jaw air cylinder and the second clamping jaw air cylinder in the nail pulling assembly drive the clamping jaw units to open. This automatic nail pulling machine of lithium cell drives whole fixture through drawing the cylinder and descends for in the sealed glue nail got into the clamping unit, first clamping jaw cylinder and second clamping jaw cylinder drive clamping jaw unit shrink simultaneously and form the centre gripping to sealed glue nail. And the whole clamping mechanism is driven to rise by the drawing cylinder, so that batch removal of the sealant nails on the battery module is realized, the efficiency of removing the sealant nails is improved, and the smooth implementation of the lithium battery formation process is ensured.

As shown in fig. 1 in combination with fig. 2, an automatic nail extractor for lithium batteries comprises a frame structure 1, a feeding assembly 2, a nail extracting assembly 3, a translation assembly 4 and a collecting funnel 5.

As shown in fig. 1, the frame structure 1 is provided with a loading platform 6 for mounting the loading assembly 2 and a glue recovery area 7 for mounting the collection hopper 5.

As shown in fig. 4, the loading assembly 2 includes a conveying roller for conveying the battery module 8. The conveying roller is arranged on the feeding platform 6. In order to further ensure the accuracy of the loading position of the battery module 8, for example, a limit baffle is arranged at the tail end of the conveying roller and is mounted on the loading platform 6.

As shown in fig. 3, the staple pulling assembly 3 is located above the conveying roller. The nail pulling assembly 3 comprises a connecting frame 31 for connecting the translation assembly 4, a clamping mechanism 32 and a pulling mechanism 33. The clamping mechanism 32 is mounted on the connection frame 31 by a drawing mechanism 33.

As shown in fig. 5, the drawing mechanism 33 includes a drawing cylinder. The block of the drawing cylinder is mounted on the connection frame 31. The piston rod of the drawing cylinder is connected to the clamping mechanism 32.

As shown in fig. 5 in combination with fig. 7, the clamping mechanism 32 includes a chuck 321, a jaw unit 322, a first jaw cylinder 323, and a second jaw cylinder 324. The chuck 321 is connected to the piston rod of the drawing cylinder. The first jaw cylinder 323 and the second jaw cylinder 324 are each mounted on the chuck 321. The first jaw cylinder 323 and the second jaw cylinder 324 are used for driving the jaw unit 322 to clamp the sealant nails.

In order to further improve the efficiency of the automatic nail extractor for lithium batteries in extracting the sealant nails, a pair of jaw units 322 are symmetrically arranged along the center line of the chuck 321. For example, taking a battery module 8 with 32 battery cells as an example, the battery cells are arranged in a rectangular array of 16×2 in the frame structure 1, and each battery cell has 2 sealant nails. A pair of jaw units 322 corresponds to two rows of battery cells, respectively.

As shown in fig. 6, the jaw unit 322 includes a first beam 3221, a first clamping plate 3222, a second beam 3223, and a second clamping plate 3224. The first beam 3221 and the second beam 3223 are each mounted to the bottom of the chuck 321 by a slide. The first beam 3221 and the second beam 3223 are arranged in parallel. A clamping channel for clamping the sealant nail is provided between the first beam 3221 and the second beam 3223.

As shown in fig. 6 in combination with fig. 9, first clamp plate 3222 and second clamp plate 3224 are both positioned within the clamp channel. The first clamping plate 3222 is mounted on the first beam 3221 and is linearly arranged along an extending direction of the first beam 3221. The second clamping plates 3224 are mounted on the second beam 3223 and are in one-to-one correspondence with the first clamping plates 3222. A catching groove 3225 for clamping the sealant nail is formed between the first clamping plate 3222 and the second clamping plate 3224.

As shown in fig. 7 in combination with fig. 8, a first jaw cylinder 323 is used to drive the first beam 3221. The second jaw cylinder 324 is used to drive the second beam 3223 in motion. The first beam 3221 and the second beam 3223 move in opposite directions.

As shown in fig. 1 in combination with fig. 4, the translation assembly 4 is mounted on top of the frame structure 1. The translation component 4 is used for driving the nail pulling component 3 to move back and forth between the feeding platform 6 and the nail recycling area 7. For example, the translation assembly 4 is a linear single-axis module, and the connecting frame 31 is connected to a sliding portion of the linear single-axis module.

In order to further improve the repeated positioning accuracy of the drawing mechanism 33, a guide assembly 34 is disposed between the connection frame 31 and the chuck 321, the guide assembly 34 includes a guide shaft 341, a bearing seat 342, and a linear bearing 343, one end of the guide shaft 341 is connected to the chuck 321 through the bearing seat 342, and the other end of the guide shaft 341 is connected to the connection frame 31 through the linear bearing 343.

The embodiment of the utility model provides an automatic nail puller for a lithium battery, which comprises the following steps:

1. And feeding materials at the upstream, conveying the materials into a whole-disc electric core conveying CV, carrying out accurate positioning and direction detection on the tray after the materials are in place, scanning the bar codes on the tray by a code scanner after the completion, and uploading the detected ID to an upper computer system.

2. After completion, the nail pulling device is started, the nail pulling device is moved to the tray to be placed directly above, the electric core is moved down, the electric core is prevented from shaking when the nail is pulled out, the clamping jaw is lowered to clamp the nail, the post-completion cylinder is lifted to separate the nail from the electric core (the part is provided with a device for preventing the nail from rebounding, and the clamping jaw is ejected out when the anti-collision nail is separated from the dropped tray).

3. After the nail pulling device rises in place, the nail pulling device moves towards the nail collecting device, and the nail pulling device passes through the nail breaking detection device in the process, so that each nail can be detected by the nail breaking detection device, and the situation that the nail is pulled out in a missed manner and broken exists on site is prevented.

4. The nail pulling device moves to the upper part of the nail collecting device, the clamping jaw is opened, and the nail falls into the collecting barrel along with the funnel on the collecting device.

5. The CCD performs photographing judgment on the battery core after the glue nail is pulled out, so as to ensure that the glue nail is actually pulled out (if not, the glue nail is pulled out again).

6. The nail pulling device moves to an initial position, a scraping plate on the glue nail collecting device is lifted out, and anti-collision glue nails are adhered to the clamping jaw to influence the nail pulling of the lower support.

7. After the nail pulling is completed, the conveying CV conveys the electric core after the nail pulling is completed to the whole line, and one cycle is completed.

The automatic nail pulling machine for the lithium battery provided by the embodiment of the utility model can be used for parallel production; the nail pulling speed is high and the efficiency is high without personnel involvement; after the nails are pulled out, whether the phenomena of missing and pulling out are caused can be automatically detected, the nails are automatically collected into a collecting device, and the nails are displayed in a full material alarm mode; the reliability of the actual verification mechanism is very high, and the unmanned automatic production line is completely satisfied.

The present utility model is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be provided in addition to the above embodiments. Any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art, which are within the spirit and principles of the present utility model, are intended to be included within the scope of the present utility model.

Claims

1. The automatic nail pulling machine for the lithium battery is characterized by comprising a frame structure (1), a feeding assembly (2), a nail pulling assembly (3), a translation assembly (4) and a collecting funnel (5);

the frame structure (1) is provided with a feeding platform for installing a feeding assembly (2) and a rubber nail recovery area (7) for installing a collecting funnel (5);

The feeding assembly (2) comprises a conveying roller for conveying the battery module (8), and the conveying roller is arranged on the feeding platform;

The nail pulling assembly (3) is positioned above the conveying roller, the nail pulling assembly (3) comprises a connecting frame (31) for connecting the translation assembly (4), a clamping mechanism (32) and a drawing mechanism (33), and the clamping mechanism (32) is arranged on the connecting frame (31) through the drawing mechanism (33);

the drawing mechanism (33) comprises a drawing cylinder, a cylinder body of the drawing cylinder is arranged on the connecting frame (31), and a piston rod of the drawing cylinder is connected with the clamping mechanism (32);

The clamping mechanism (32) comprises a chuck (321), a clamping jaw unit (322), a first clamping jaw air cylinder (323) and a second clamping jaw air cylinder (324), wherein the chuck (321) is connected with a piston rod of the drawing air cylinder, the first clamping jaw air cylinder (323) and the second clamping jaw air cylinder (324) are both arranged on the chuck (321), and the first clamping jaw air cylinder (323) and the second clamping jaw air cylinder (324) are used for driving the clamping jaw unit (322) to clamp sealant nails;

The translation assembly (4) is arranged at the top of the frame structure (1), and the translation assembly (4) is used for driving the nail pulling assembly (3) to reciprocate between the feeding platform and the nail recycling area (7).

2. The automatic nail pulling machine for lithium batteries according to claim 1, wherein the clamping jaw unit (322) comprises a first beam (3221), a first clamping plate (3222), a second beam (3223) and a second clamping plate (3224), the first beam (3221) and the second beam (3223) are all arranged at the bottom of the clamping plate (321) through sliding seats, the first beam (3221) and the second beam (3223) are arranged in parallel, a clamping channel for clamping sealing nails is arranged between the first beam (3221) and the second beam (3223), the first clamping plate (3222) and the second clamping plate (3224) are all located in the clamping channel, the first clamping plate (3222) is arranged on the first beam (3221) and is arranged in a linear mode along the extending direction of the first beam (3221), the second clamping plate (3224) is arranged on the second beam (3223) and corresponds to the first clamping plate (3222) one by one, and the first clamping plate (3222) and the second clamping plate (3224) are used for clamping nails to form a sealing groove (3225) between the first clamping plate and the second clamping plate (3224).

3. The automatic nail puller for lithium batteries according to claim 2, characterized in that the first jaw cylinder (323) is used for driving the first beam (3221) to move, the second jaw cylinder (324) is used for driving the second beam (3223) to move, and the movement direction of the first beam (3221) is opposite to that of the second beam (3223).

4. The automatic nail puller for lithium batteries according to claim 1, wherein the end of the conveying roller is provided with a limit baffle, and the limit baffle is mounted on a loading platform.

5. The automatic nail puller for lithium batteries according to claim 1, characterized in that a guide assembly (34) is arranged between the connecting frame (31) and the chuck (321), the guide assembly (34) comprises a guide shaft (341), a bearing seat (342) and a linear bearing (343), one end of the guide shaft (341) is connected with the chuck (321) through the bearing seat (342), and the other end of the guide shaft (341) is connected with the connecting frame (31) through the linear bearing (343).

6. The automatic nail extractor for lithium batteries according to claim 1, characterized in that a pair of jaw units (322) are symmetrically arranged along the center line of the chuck (321).

7. The automatic nail puller for lithium batteries according to claim 1, characterized in that said translation assembly (4) is a linear single-shaft module, said connecting frame (31) being connected to the sliding portion of the linear single-shaft module.