Tab shaping mechanism

Abstract

The utility model discloses a pole lug shaping mechanism which comprises a mounting rack, and the mounting rack is provided with a plurality of pole lug cushion blocks for supporting pole lugs; the scraper assemblies are arranged above the electrode lug cushion blocks and are in one-to-one correspondence with the electrode lug cushion blocks, and each scraper assembly comprises a roller scraper which is rotationally arranged; and the scraper driving assembly is used for driving the scraper assembly to move, so that the roller scraper rolls on the surface of the tab to shape the tab. The electrode lug shaping device has the advantages that the electrode lug is shaped in a rolling friction mode, damage to the electrode lug is small, and the scraper assembly is arranged in a floating mode and is higher in flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to an ear shaping mechanism. Background Art

[0002] During battery production, it is necessary to punch and cut the ears of the battery cell and perform various performance tests. Before punching and cutting and testing the battery cell, it is also necessary to shape the ears of the battery cell. Since the materials of the ears of soft-pack lithium batteries are mostly aluminum and nickel, the materials are relatively soft, and the ears protrude from the main body of the battery cell, and are prone to bending, wrinkling and other phenomena during handling or various processes. Therefore, it is necessary to shape the ears to ensure the quality of the battery cell.

[0003] In the existing ear shaping mechanisms of soft-pack lithium batteries, the shaping mechanism is often fixed and cannot be adjusted individually when dealing with different ears; and in the existing technology, the scraper is mostly made of ceramic material, and there may be a risk of uneven scraping or damage to the ears during scraping, which affects the quality of the battery.

[0004] In view of this, the purpose of the utility model is to provide a new technical solution to solve the existing technical problems. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an ear shaping mechanism, which solves the problems that the existing scraper cannot scrape evenly and is easy to damage the ears.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] An ear shaping mechanism, comprising:

[0008] A mounting frame, the mounting frame is provided with a plurality of ear pads for supporting the ears;

[0009] A scraper assembly, the scraper assembly is arranged above the ear pads and corresponds to the ear pads one by one, and the scraper assembly includes a rotating drum scraper;

[0010] A scraper driving assembly, the scraper driving assembly is used to drive the scraper assembly to move, so that the drum scraper rolls on the surface of the ear to shape the ear.

[0011] In the above structure, the drum scraper includes a scraper base and a scraper roller rotatably arranged on the scraper base, and a polyurethane coating is coated on the outer peripheral side of the scraper roller.

[0012] In the above structure, the scraper assembly further includes an elastic member and a mounting base, the elastic member is a compression spring, one end of the compression spring is connected to the scraper base, and the other end is connected to the mounting base.

[0013] In the above structure, a guiding shaft is fixedly connected to the doctor blade base. A linear bearing is arranged on one side of the mounting base facing away from the doctor blade base. The guiding shaft is slidably connected to the mounting base through the linear bearing. The compression spring is sleeved on the guiding shaft. One end of the guiding shaft away from the doctor blade base is fixedly connected with a doctor blade limiting block.

[0014] In the above structure, the doctor blade driving assembly includes a doctor blade driving cylinder and a doctor blade lifting cylinder. A cylinder mounting plate is connected to the mounting frame. The doctor blade driving cylinder is fixedly connected to the cylinder mounting plate, and the piston rod of the doctor blade driving cylinder is connected to the doctor blade assembly. The doctor blade driving cylinder is used to drive the roller doctor blade to roll the tab back and forth. The doctor blade lifting cylinder is fixedly arranged on the mounting frame, and the piston rod of the doctor blade lifting cylinder is fixedly connected to the cylinder mounting plate. The doctor blade lifting cylinder is used to drive the doctor blade assembly to move in the vertical direction.

[0015] In the above structure, it further includes a pressing block assembly for pressing and limiting the battery cell body. The pressing block assembly includes a pressing block main body. A pressing block mounting plate is arranged on the mounting frame in a liftable manner. A plurality of the pressing block main bodies are connected to the pressing block mounting plate, and the pressing block main bodies are arranged corresponding to the tab pads one by one. A pressing block driving member for driving the pressing block main body to move is arranged on the mounting frame.

[0016] In the above structure, the pressing block assembly further includes a buffer spring. A guide rod is fixedly connected to the pressing block main body. The buffer spring is sleeved on the guide rod, with one end abutted against the pressing block mounting plate and the other end abutted against the pressing block main body. A plurality of linear bearings corresponding to the pressing block main bodies one by one are arranged on the pressing block mounting plate. The guide rod is slidably connected to the pressing block mounting plate through the linear bearings.

[0017] In the above structure, the pressing block driving member is a pressing block driving cylinder. The pressing block driving cylinder is fixedly connected to the mounting frame, and the piston rod of the pressing block driving cylinder is fixedly connected to the pressing block mounting plate. A guide rod is fixedly connected to the pressing block mounting plate. The guide rod is slidably connected to the mounting frame, and one end of the guide rod passes through the mounting frame. A limiting block is fixedly connected to the end of the guide rod passing through the mounting frame.

[0018] In the above structure, a pad mounting plate is slidably arranged on the mounting frame. A plurality of the tab pads are evenly and fixedly arranged on the pad mounting plate. A pad driving cylinder is arranged at the bottom of the mounting frame. The piston rod of the pad driving cylinder is connected to the pad mounting plate.

[0019] In the above structure, guide rails extending along the vertical direction of the mounting bracket are fixedly arranged on opposite sides of the mounting bracket, both ends of the spacer mounting plate are slidably arranged on the guide rails, both ends of the cylinder mounting plate are slidably connected to the guide rails, and the cylinder mounting plate is located above the spacer mounting plate.

[0020] The beneficial effects of the present utility model are as follows: a roller scraper is provided, using rolling friction to replace static friction, effectively reducing the possibility of damage to the tab during tab shaping and reducing the possibility of scraping off the tab; and the scraper assembly can be floatingly arranged, which can adapt to various states of the tab and has high flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present utility model will be further described below with reference to the drawings and embodiments.

[0022] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 is a schematic diagram of the structure on the other side of the present utility model;

[0024] Figure 3 is Figure 2 an enlarged schematic diagram of part A in

[0025] Figure 4 is Figure 2 an enlarged schematic diagram of part B in.

[0026] REFERENCE MARKS:

[0027] 1. Mounting bracket; 11. Cylinder mounting plate; 111. Limit rod; 112. Limit block; 113. Scraper lifting slider; 12. Pressure block mounting plate; 121. Guide rod; 13. Spacer mounting plate; 131. Spacer lifting slider; 14. Guide rail;

[0028] 2. Tab spacer; 21. Spacer driving cylinder;

[0029] 3. Pressure block assembly; 31. Pressure block main body; 311. Guide rod; 312. Limit plate; 32. Buffer spring; 33. Limit silica gel;

[0030] 4. Pressure block driving cylinder;

[0031] 5. Scraper assembly; 51. Roller scraper; 511. Scraper roller shaft; 512. Scraper base; 52. Guide shaft; 521. Scraper limit block; 53. Compression spring; 54. Mounting base; 55. Rolling guide rod; 551. Limiting member;

[0032] 6. Scraper driving assembly; 61. Scraper driving cylinder; 611. Scraper mounting plate; 62. Scraper lifting cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following will further explain the present utility model in conjunction with the accompanying Figures 1-4 drawings.

[0034] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in combination with the embodiments and the accompanying drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the present utility model can be interactively combined without conflicting with each other.

[0035] Referring to Figures 1 to 4 , the present utility model provides an ear shaping mechanism, which can be applied to the soft-pack battery industry. It uses the method of rolling friction to scrape the ears flat, and is convenient to adjust. It can be flexibly adjusted when facing different ears, with good scraping effect and beneficial to improving production efficiency. The new ear shaping structure includes a mounting frame 1, an ear cushion block 2, a pressing block assembly 3, a pressing block driving member, a scraper assembly 5 and a scraper driving assembly 6. Among them, the mounting frame 1 is a component for carrying the above-mentioned component structures, ensuring the stability and strength of the installation and connection of the entire device; the ear cushion block 2 is arranged on the mounting frame 1 to support the ears so that the scraper assembly 5 can roll and scrape the ears flat; the pressing block assembly 3 is arranged on the mounting frame 1 and is used to press the battery body when the battery enters the ear shaping station, so as to facilitate the subsequent ear shaping operation; the pressing block driving member is used to drive the pressing block assembly 3 to move up and down in the vertical direction, so that the pressing block assembly 3 is away from or presses the battery body; the scraper assembly 5 is used to scrape the ears flat to achieve the shaping of the ears; the scraper driving assembly 6 is used to drive the scraper assembly 5 to approach the ears and shape the ears.

[0036] Referring to Figure 1 , the mounting frame 1 is used to carry each component. Specifically, the mounting frame 1 is the installation base of the entire mechanism. The structure of the mounting frame 1 includes but is not limited to gantry type, frame type, box type and other structural forms. To ensure the stability and strength of the mechanism installation, the material of the mounting frame 1 can be selected from metal alloy materials with high rigidity and strength. In this embodiment, the mounting frame 1 is a gantry structure. In other embodiments, the structural form of the mounting frame 1 can be adaptively set according to actual needs. The present application does not make a unique limitation on the specific structural form of the mounting frame 1, as long as it can play the above-mentioned role.

[0037] Referring to Figures 1 to 4, the tab spacer 2 is arranged on the mounting frame 1. The number of tab spacers 2 is at least one, and generally multiple tab spacers 2 are arranged to form multiple tab shaping stations, so as to simultaneously shape the tabs of multiple soft-pack batteries, thereby improving production efficiency. Specifically, a spacer mounting plate 13 is connected to the mounting frame 1. The spacer mounting plate 13 is horizontally arranged and is slidably arranged up and down in the mounting frame 1 in the vertical direction. A number of tab spacers 2 are evenly and fixedly arranged on the spacer mounting plate 13. In actual setting, the gap between adjacent tab spacers 2 is matched according to the spacing of the battery transmission pipeline, and the tab spacers 2 are arranged in one-to-one correspondence with the batteries. A spacer driving cylinder 21 is arranged on the mounting frame 1. The spacer driving cylinder 21 is fixedly connected to the bottom of the mounting frame 1, and the piston rod of the spacer driving cylinder 21 is fixedly connected to the spacer mounting plate 13. When the piston rod of the spacer driving cylinder 21 extends, it drives the spacer mounting plate 13 to slide vertically upward in the mounting frame 1, thereby realizing the lifting of the tab spacer 2; when the piston rod of the spacer driving cylinder 21 retracts, it drives the spacer mounting plate 13 to slide vertically downward in the mounting frame 1, realizing the lowering of the tab spacer 2. Before tab shaping, when the soft-pack battery is conveyed to the tab shaping station, the spacer driving cylinder 21 is started to drive the tab spacer 2 to lift, so that the tab spacer 2 holds up the tab of the soft-pack battery and provides support for the tab for subsequent tab shaping operations.

[0038] In an implementation manner, guide rails 14 are fixedly arranged on opposite sides of the mounting frame 1. The guide rails 14 extend along the vertical direction of the mounting frame 1. Block lifting sliders 131 are fixedly arranged at both ends of the spacer mounting plate 13. The block lifting sliders 131 at both ends are respectively slidably connected to the guide rails 14 on both sides, thereby realizing the sliding connection between the spacer mounting plate 13 and the mounting frame 1.

[0039] Referring to Figure 2 and Figure 3 , the pressing block assembly 3 includes a pressing block main body 31. The pressing block assembly 3 is arranged on the mounting frame 1 in a liftable manner. Specifically, a pressing block mounting plate 12 is connected to the mounting frame 1. The pressing block mounting plate 12 is horizontally arranged. A number of pressing block main bodies 31 are connected to the pressing block mounting plate 12, and the pressing block main bodies 31 are arranged in one-to-one correspondence with the tab spacers 2. The pressing block driving member is a pressing block driving cylinder 4. The pressing block driving cylinder 4 is fixedly connected to the mounting frame 1, and the piston rod of the pressing block driving cylinder 4 is fixedly connected to the pressing block mounting plate 12. When the piston rod of the pressing block driving cylinder 4 extends, it drives the pressing block mounting plate 12 to move vertically downward, driving the pressing block main body 31 to move downward close to the battery main body until the pressing block main body 31 presses the battery main body tightly, completing the pressing and limiting of the battery main body; when the piston rod of the pressing block driving cylinder 4 retracts, it drives the pressing block main body 31 to disengage from the battery main body. At this time, the battery main body is released from the restriction and can be transported to the next production line. By arranging the pressing block main body 31 to press and limit the battery main body, the possibility of the battery main body slipping during the tab shaping operation is effectively reduced.

[0040] In addition, a guide rod 121 is fixedly connected to the briquetting mounting plate 12. A linear bearing is correspondingly arranged on the mounting frame 1. The guide rod 121 is slidably connected to the mounting frame 1 through the linear bearing. One end of the guide rod 121 away from the briquetting mounting plate 12 passes through the mounting frame 1, and a limit block 112 is fixedly connected to the end of the guide rod 121 passing through the mounting frame 1. In this embodiment, guide rods 121 are arranged on both sides of the briquetting driving cylinder 4. The guide rods 121 guide the lifting of the briquetting mounting plate 12, and arranging the guide rods 121 also helps to ensure the stability of the lifting of the briquetting mounting plate 12, limit the briquetting mounting plate 12, and reduce the possibility of the briquetting mounting plate 12 swinging during the lifting process. The linear bearing guides the guide rod 121, which is beneficial for its stable lifting.

[0041] Furthermore, the briquetting assembly 3 further includes a buffer spring 32. A guide rod 311 is fixedly connected to the briquetting main body 31. A linear bearing is arranged on the briquetting mounting plate 12. The guide rod 311 is slidably arranged on the briquetting mounting plate 12 through the linear bearing, and one end of the guide rod 311 away from the briquetting main body 31 passes through the briquetting mounting plate 12. The buffer spring 32 is sleeved on the guide rod 311, and one end of the buffer spring 32 abuts against the briquetting mounting plate 12, and the other end abuts against the briquetting main body 31. In this embodiment, two guide rods 311 are arranged on one briquetting main body 31, and a limit plate 312 is fixedly connected to the ends of the two guide rods 311 passing through the briquetting mounting plate 12. The limit plate 312 limits the movement range of the guide rod 311 to reduce the possibility of the guide rod 311 disengaging from the linear bearing. By arranging the buffer spring 32, when each briquetting main body 31 presses against different battery main bodies, the briquetting assembly 3 can adapt to the differences in the thicknesses of different battery main bodies and perform floating adjustment, so that each battery main body can be tightly pressed and limited. Compared with the non-adjustable hard limit, the floating-adjustable briquetting assembly 3 is more flexible and has higher adaptability. The guide rod 311 supports the buffer spring 32, and the linear bearing guides the guide rod 311. The combined use of the buffer spring 32, the guide rod 311 and the linear bearing makes the floating adjustment more stable and reliable.

[0042] Furthermore, a limiting silica gel 33 is fixedly connected to the end of the guide rod 311 away from the pressing block body 31. The limiting silica gel 33 is located between the limiting plate 312 and the linear bearing, effectively avoiding the possibility that the hard limiting plate 312 impacts the linear bearing and damages the linear bearing. The limiting silica gel 33 can be made of conventional silica gel. The pressing block body 31 is made of silica gel material. In this embodiment, silica gel with a Shore hardness of 40-60 is used. Selecting silica gel material to make the pressing block body 31 can effectively reduce the possibility that the pressing block body 31 causes indentation on the battery body or damages the battery body during the downward pressing process. In actual setting, the buffer spring 32 can determine the elastic coefficient with reference to the hardness of the pressing block body 31. As a reference, the buffer spring 32 selected in this embodiment is a spring with an elastic coefficient of 5.98 N / mm.

[0043] Referring to Figure 2 and Figure 4 , the blade assembly 5 is used to scrape and level the tab to achieve the shaping of the tab. The blade assembly 5 includes a roller blade 51, an elastic member, and a mounting base 54. The roller blade 51 is floatingly mounted on the mounting base 54 through the elastic member. Specifically, the roller blade 51 includes a blade roller shaft 511 and a blade base 512. The blade roller shaft 511 is rotatably connected to the blade base 512. The elastic member is a compression spring 53. One end of the compression spring 53 is connected to the blade base 512, and the other end is connected to the mounting base 54.

[0044] Further, a guide shaft 52 is fixedly connected to the blade base 512. A linear bearing is provided on the side of the mounting base 54 facing away from the blade base 512. The guide shaft 52 is slidably connected to the mounting base 54 through the linear bearing. The compression spring 53 is sleeved on the guide shaft 52. A blade limiting block 521 is fixedly connected to the end of the guide shaft 52 away from the blade base 512. The blade limiting block 521 limits the sliding range of the guide shaft 52 to reduce the possibility that the blade assembly 5 disengages from the linear bearing during use.

[0045] In this embodiment, a polyurethane coating is provided on the outer peripheral side of the doctor roller 511. The polyurethane coating can be melted and adhered to the doctor roller 511. When the doctor blade assembly 5 rolls the tab, the polyurethane coating on the outer ring of the doctor roller 511 contacts the battery tab to protect the tab, effectively reducing the possibility of tab breakage caused by rolling the tab with hard materials. By setting the doctor blade in the form of a roller, rolling friction is used to replace the static friction of doctor blade structures such as ceramic doctor blades, effectively reducing the impact of the doctor blade on the tab. And a compression spring 53 is provided, so that the doctor blade assembly 5 can float up and down when rolling and shaping the tab. When encountering situations such as partial folding or convex points of some tabs, the compression spring 53 can provide a floating space for the roller doctor blade 51, enabling the roller doctor blade 51 to better adhere to the tab, making the roller doctor blade 51 function better, and the floating adjustment greatly improves the compatibility of the roller doctor blade 51. The linear bearing provides a guiding function for the guiding shaft 52.

[0046] See Figures 1 to 4 , the doctor blade driving assembly 6 includes a doctor blade driving cylinder 61 and a doctor blade lifting cylinder 62. Among them, the doctor blade lifting assembly is used to drive the doctor blade assembly 5 to approach or move away from the surface of the tab; the doctor blade driving cylinder 61 is used to drive the doctor blade assembly 5 to roll on the surface of the tab when the doctor blade assembly 5 is close to the tab.

[0047] Specifically, a cylinder mounting plate 11 is connected to the mounting frame 1. The doctor blade driving cylinder 61 is fixedly connected to the cylinder mounting plate 11, and the piston rod of the doctor blade driving cylinder 61 is connected to the doctor blade assembly 5. In this embodiment, several groups of doctor blade assemblies 5 are provided. Each group of doctor blade assemblies 5 is arranged in one-to-one correspondence with the tab shaping station, and the doctor blade assembly 5 is located above the tab spacer 2. The piston rod of the doctor blade driving cylinder 61 is fixedly connected with a doctor blade mounting plate 611. The mounting bases 54 on each doctor blade assembly 5 are correspondingly fixedly connected to the doctor blade mounting plate 611. The extension and retraction of the piston rod of the doctor blade driving cylinder 61 drive the doctor blade mounting plate 611 to move, thereby realizing the reciprocating movement of the doctor blade assembly 5 in the horizontal direction.

[0048] Furthermore, a rolling guide rod 55 is fixedly connected to the doctor blade mounting plate 611. Correspondingly, a linear bearing is provided on the cylinder mounting plate 11. The rolling guide rod 55 is slidably connected to the cylinder mounting plate 11 through the linear bearing. By setting the rolling guide rod 121, the smooth movement of the doctor blade mounting plate 611 is ensured, and thus the stability of the doctor blade assembly 5 performing the tab shaping operation is ensured. A limiting member 551 is fixedly connected to the end of the rolling guide rod 55 away from the doctor blade mounting plate 611 to limit the movement of the doctor blade assembly 5 in the horizontal direction, reducing the possibility of the doctor blade assembly 5 detaching from the cylinder mounting plate 11.

[0049] Both ends of the cylinder mounting plate 11 are slidably connected to the mounting frame 1. The blade lifting cylinder 62 is fixedly arranged at the bottom of the mounting frame 1, and the piston rod of the blade lifting cylinder 62 is fixedly connected to the cylinder mounting plate 11. When the piston rod of the blade lifting cylinder 62 extends, it drives the cylinder mounting plate 11 to slide vertically upward and engage with the mounting frame 1, realizing the lifting of the blade assembly 5; when the piston rod of the blade lifting cylinder 62 retracts, it drives the blade assembly 5 to descend.

[0050] In one embodiment, scraping lifting sliders 113 are fixedly arranged at both ends of the cylinder mounting plate 11. The scraping lifting sliders 113 at both ends are respectively slidably connected to the guide rails 14 on both sides, thereby realizing the sliding connection between the cylinder mounting plate 11 and the mounting frame 1. The cylinder mounting plate 11 is located above the spacer mounting plate 13. Arranging the cylinder mounting plate 11 and the spacer mounting plate 13 on the same guide rail 14 is beneficial to simplifying the connection structure and realizing the sliding connection by using the connection method of the slider and the guide rail 14, and is also beneficial to ensuring the stability of the sliding process of the cylinder mounting plate 11 and the spacer mounting plate 13.

[0051] It should be noted that in other embodiments, the sliding connection between the cylinder mounting plate 11 and the spacer mounting plate 13 and the mounting frame 1 can be in other structural forms, such as a lead screw-nut structure, etc., as long as the above process can be realized, and the specific connection structure is not uniquely limited herein.

[0052] Furthermore, a limiting rod 111 is fixedly connected to the cylinder mounting plate 11. When the cylinder mounting plate 11 descends to the limit position, the limiting rod 111 abuts against the bottom of the mounting frame 1. The limiting shaft is provided to limit the descending height of the blade assembly 5, so as to reduce the possibility that the blade assembly 5 is damaged due to hitting the tab backing plate when descending too low.

[0053] The implementation process of this embodiment is as follows:

[0054] When the battery body enters the tab shaping station, the piston rod of the pressing block driving cylinder 4 extends, driving the pressing block body 31 to descend, pressing and restricting the battery body at the tab shaping station. Then the tab driving cylinder 21 drives the tab spacer 2 to lift to support the tab of the battery body. Next, the blade driving cylinder 61 starts, driving the blade assembly 5 to move above the connection between the battery body and the tab. At this time, the blade lifting cylinder 62 starts to retract the piston rod, driving the roller blade 51 to press the tab against the tab spacer 2. Immediately afterwards, the blade driving cylinder 61 retracts, causing the roller blade 51 to roll over the tab surface to achieve the shaping effect. Finally, the blade driving assembly 6 drives the blade assembly 5 back to the initial position, the pressing block driving cylinder 4 drives the pressing block body 31 back to the initial position, the conveyor line transports the battery to the next station, and the tab driving cylinder 21 retracts to drive the tab spacer 2 back to the initial position.

[0055] The above is a specific description of the preferred embodiment of the present utility model. However, the present utility model is not limited to the described embodiment. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A tab shaping mechanism, characterized in that: include: A mounting frame, wherein the mounting frame is provided with a plurality of tab pads for supporting the tabs; A scraper assembly, the scraper assembly is arranged above the tab pad and corresponds to the tab pad one by one, and the scraper assembly includes a rotatably arranged roller scraper; The scraper drive assembly is used to drive the scraper assembly to move, so that the roller scraper rolls on the surface of the pole ear to shape the pole ear.

2. The tab shaping mechanism according to claim 1, characterized in that: The roller scraper comprises a scraper base and a scraper roller rotatably arranged on the scraper base, and the outer peripheral side of the scraper roller is covered with a polyurethane coating.

3. The tab shaping mechanism according to claim 2, characterized in that: The scraper assembly also includes an elastic member and a mounting base. The elastic member is a compression spring. One end of the compression spring is connected to the scraper base, and the other end is connected to the mounting base.

4. The tab shaping mechanism according to claim 3, characterized in that: A guide shaft is fixedly connected to the scraper base, a linear bearing is provided on the side of the mounting base facing away from the scraper base, the guide shaft is slidably connected to the mounting base via the linear bearing, the compression spring is sleeved on the guide shaft, and a scraper limit block is fixedly connected to the end of the guide shaft away from the scraper base.

5. The tab shaping mechanism according to claim 1, characterized in that: The scraper driving assembly includes a scraper driving cylinder and a scraper lifting cylinder. A cylinder mounting plate is connected to the mounting frame. The scraper driving cylinder is fixedly connected to the cylinder mounting plate, and the piston rod of the scraper driving cylinder is connected to the scraper assembly. The scraper driving cylinder is used to drive the roller scraper to roll the pole ear back and forth. The scraper lifting cylinder is fixedly arranged on the mounting frame, and the piston rod of the scraper lifting cylinder is fixedly connected to the cylinder mounting plate. The scraper lifting cylinder is used to drive the scraper assembly to move in the vertical direction.

6. The tab shaping mechanism according to claim 1, characterized in that: It also includes a pressure block assembly for compressing and limiting the battery cell body, the pressure block assembly includes a pressure block body, a pressure block mounting plate is provided on the mounting frame which can be raised and lowered, a number of the pressure block bodies are connected to the pressure block mounting plate, and the pressure block bodies are arranged in a one-to-one correspondence with the tab pads, and a pressure block driving member for driving the pressure block body to move is provided on the mounting frame.

7. The tab shaping mechanism according to claim 6, characterized in that: The pressure block assembly also includes a buffer spring, a guide rod is fixedly connected to the pressure block body, the buffer spring is sleeved on the guide rod, and one end of the buffer spring abuts against the pressure block mounting plate, and the other end abuts against the pressure block body. The pressure block mounting plate is provided with a plurality of linear bearings corresponding to the pressure block body one by one, and the guide rod is slidably connected to the pressure block mounting plate through the linear bearing.

8. The tab shaping mechanism according to claim 6, characterized in that: The pressure block driving component is a pressure block driving cylinder, the pressure block driving cylinder is fixedly connected to the mounting frame, and the piston rod of the pressure block driving cylinder is fixedly connected to the pressure block mounting plate, the pressure block mounting plate is fixedly connected with a guide rod, the guide rod is slidably connected to the mounting frame, and one end of the guide rod passes through the mounting frame, and the end of the guide rod passing through the mounting frame is fixedly connected to a limiting block.

9. The tab shaping mechanism according to claim 5, characterized in that: A pad mounting plate is slidably arranged on the mounting frame, a plurality of the pole lug pads are evenly fixedly arranged on the pad mounting plate, a pad driving cylinder is arranged at the bottom of the mounting frame, and a piston rod of the pad driving cylinder is connected to the pad mounting plate.

10. The tab shaping mechanism according to claim 9, characterized in that: The mounting frame is fixedly provided with guide rails extending in the vertical direction of the mounting frame on opposite sides, the two ends of the cushion block mounting plate are slidably arranged on the guide rails, the two ends of the cylinder mounting plate are slidably connected to the guide rails, and the cylinder mounting plate is located above the cushion block mounting plate.

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