CN221018063U

CN221018063U - Flatness shaping tool for aluminum shell

Info

Publication number: CN221018063U
Application number: CN202322424713.8U
Authority: CN
Inventors: 龚象光; 胡毅铭
Original assignee: Rept Battero Energy Co Ltd
Current assignee: Rept Battero Energy Co Ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2024-05-28
Anticipated expiration: 2033-09-06

Abstract

The utility model provides a flatness shaping tool for an aluminum shell, which relates to the technical field of aluminum shell shaping and comprises a working platform, a clamping device and an inflating device, wherein the clamping device is arranged on the working platform; the clamping device comprises a clamping frame, a driving device and at least two clamping plates, wherein any clamping plate is arranged in the clamping frame in a sliding manner, an aluminum shell is placed between two adjacent clamping plates, and the driving device drives the clamping plates to slide in the clamping frame; the air charging device comprises an air pipe communicated with the inner space of the aluminum shell, and the air pipe is communicated with an external air source. Through the trachea to the aluminium hull inner space aerifing, reduce the concavity of aluminium hull, the concavity span of aluminium hull is great, can lead to some aluminium hull to bulge, drives two splint and is close to each other and press from both sides tight aluminium hull through drive arrangement and prevent that the aluminium hull from bulge, finally makes the aluminium hull form plane state from the sunken state, can reach the plastic requirement to the aluminium hull, helps improving module production efficiency.

Description

Flatness shaping tool for aluminum shell

Technical Field

The utility model relates to the technical field of aluminum shell shaping, in particular to a flatness shaping tool for an aluminum shell.

Background

The secondary battery has the characteristics of small weight, high energy ratio, long service life, safety and convenience in use and the like. The secondary battery is generally placed in a square aluminum case made of aluminum alloy before use, so as to facilitate the use of the secondary battery. Because square aluminum shell has the cavity, and the aluminum shell has good ductility, make square aluminum shell produce the sunken uniformity of square aluminum shell planarization relatively poor easily during transportation. Currently, the improvement of flatness of aluminum cases is usually adjusted by the existing process from the time of core insertion into the case to the time of steel ball sealing.

The prior Chinese patent application document with publication number of CN206911972U discloses a shaping machine for a thin-wall aluminum shell of a new energy lithium battery, and belongs to the technical field of new energy. The novel plastic plate is characterized in that a seat plate is arranged on the frame, grooves are formed in the seat plate, aluminum shells are placed in the grooves, support columns are respectively arranged on the left side and the right side of the upper surface of the seat plate, linear guide rails are arranged on the support columns, sliding blocks are arranged on the linear guide rails, fixing devices are arranged between the sliding blocks, sleeve plates are arranged on the seat plate, a plurality of plastic cylinders are respectively arranged on the left side and the right side of the sleeve plates and the support columns, a plastic plate is arranged on a cylinder shaft of each plastic cylinder, and a plurality of pressure sensors are arranged on the fixing plates.

The plastic machine among the prior art passes through the fixed plate to be fixed in the recess with the aluminum hull, then drives the shaping board through the plastic cylinder and carries out slight striking to the aluminum hull, makes the surface of aluminum hull can obtain little plastic, to the poor aluminum hull of electric core plane degree uniformity, the concavity is below-1.5 can't reach the plastic requirement, leads to module production efficiency low, exists and waits to improve.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model aims to provide a flatness shaping tool for an aluminum shell.

The flatness shaping tool for the aluminum shell comprises a working platform, a clamping device and an inflating device, wherein the clamping device is arranged on the working platform; the clamping device comprises a clamping frame, a driving device and at least two clamping plates, wherein any clamping plate is arranged in the clamping frame in a sliding manner, an aluminum shell is placed between two adjacent clamping plates, and the driving device drives the clamping plates to slide in the clamping frame; the air charging device comprises an air pipe communicated with the inner space of the aluminum shell, and the air pipe is communicated with an external air source.

Preferably, the clamping frame comprises a slideway, any clamping plate is arranged on the slideway and is in sliding fit with the slideway, and a backboard is fixedly arranged at one end of the slideway; the driving device comprises a linear driving assembly and a movable plate, wherein the movable plate is arranged at one end of the slideway far away from the backboard, and the driving assembly drives the movable plate to slide along the slideway.

Preferably, the linear driving assembly comprises a motor and a screw rod, one end of the screw rod is rotationally connected with the back plate, the other end of the screw rod is in transmission connection with the motor, and the screw rod penetrates through the movable plate and is connected with the movable plate.

Preferably, the screw rod passes through the lower part of the movable plate, a passing gap allowing the lower part of the movable plate and the screw rod to pass through is arranged in the slide rail, and a step surface for placing the clamping plate and the aluminum shell is arranged in the slide rail.

Preferably, the slide comprises two side plates arranged at intervals, and the movable plate is provided with a through hole for allowing the side plates to pass through.

Preferably, the working platform is provided with a sliding rail, the movable plate is provided with a sliding groove, and the sliding groove is embedded on the sliding rail.

Preferably, a return spring is arranged between any two adjacent clamping plates, and the expansion direction of the return spring is parallel to the movement direction of the clamping plates.

Preferably, the clamping device further comprises guide rods, one or more guide rods are respectively arranged on two sides of the clamping plate, and any guide rod penetrates through the clamping plate and is in sliding fit with the clamping plate.

Preferably, the contact surface of the clamping plate and the aluminum shell is a plane, and a pressure sensor is arranged on the contact surface of the clamping plate and the aluminum shell.

Preferably, a flow valve and a pressure regulating valve are sequentially arranged on the air pipe from an external air source to the aluminum shell.

Compared with the prior art, the utility model has the following beneficial effects:

1. According to the utility model, the air pipe is used for inflating the inner space of the aluminum shell, so that the concavity of the aluminum shell is reduced, the concavity span of the aluminum shell is larger, a part of the aluminum shell can bulge, the two clamping plates are driven by the linear driving assembly to mutually approach and clamp the aluminum shell to prevent the aluminum shell from bulge, and finally the aluminum shell is in a plane state from the concavity state, so that the shaping requirement on the aluminum shell can be met, and the module production efficiency is improved.

2. According to the utility model, the sliding rail and the sliding groove are matched, so that the stability of the movement of the movable plate is improved, and the stability of the whole work of the tool is improved.

3. The guide rods are arranged on the two sides of the clamping plate, so that the stability of the movement of the clamping plate is improved.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is an axial schematic view of an overall structure of a shaping tool embodying the present utility model;

FIG. 2 is a schematic view of the overall structure of an inflator according to the present utility model;

FIG. 3 is a schematic view of an internal structure of a clamping frame according to the present utility model;

fig. 4 is a schematic view of a structure between two adjacent splints in which the present utility model is mainly embodied.

Reference numerals:

Working platform 1 step surface 244

Slide rail 11 back plate 25

Movable plate 26 of clamping device 2

Clamping plate 21 through hole 261

Chute 27 of motor 22

Guide rod 28 of screw 23

Clamping frame 24 inflator 3

Slide 241 air tube 31

Side plate 242 flow valve 32

Pressure regulating valve 33 through gap 243

Reset spring 4

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

Example 1

As shown in fig. 1 and 2, the flatness shaping tool for the aluminum shell provided by the utility model comprises a working platform 1, a clamping device 2 and an inflating device 3, wherein the clamping device 2 is arranged on the working platform 1. The clamping device 2 comprises a clamping frame 24, a driving device and at least two clamping plates 21, wherein any clamping plate 21 is slidably arranged in the clamping frame 24, an aluminum shell is placed between two adjacent clamping plates 21, and the driving device drives the clamping plates 21 to slide in the clamping frame 24. The inflator 3 includes an air pipe 31 communicating with the inner space of the aluminum case, and the air pipe 31 communicates with an external air source.

During the plastic, aerify to the aluminum hull inner space earlier through trachea 31, reduce the concavity of aluminum hull, the concavity span of aluminum hull is great, can lead to partly aluminum hull bulge, drives two splint 21 each other and press from both sides tight aluminum hull through drive arrangement and prevents that the aluminum hull from bulge, finally makes the aluminum hull form plane state from the sunken state.

The surface of the clamping plate 21, which is contacted with the aluminum shell, is a plane, and a pressure sensor is arranged on the surface of the clamping plate 21, which is contacted with the aluminum shell. The pressure sensor can realize the control and adjustment of the pressure.

As shown in fig. 1, 3 and 4, specifically, the clamping frame 24 is fixedly placed on the working platform 1, the clamping frame 24 is in a rectangular semi-enclosed structure, the clamping frame 24 includes a slide 241, the length direction of the slide 241 is parallel to the length direction of the clamping frame 24, and any clamping plate 21 is disposed on the slide 241 and slidingly cooperates with the slide 241. The slide way 241 is formed by matching two side plates 242 with the same length direction as the length direction of the clamping frame 24, the two side plates 242 are arranged at intervals, any clamping plate 21 is arranged between the two side plates 242, any clamping plate 21 is in sliding fit with the two side plates 242, and preferably, the contact surface of any clamping plate 21 and the aluminum shell is perpendicular to the length direction of the side plates 242.

One end of the slide 241 is fixedly provided with a back plate 25. The driving device comprises a linear driving component and a movable plate 26, the movable plate 26 is arranged at one end of the slide way 241 far away from the back plate 25, and the driving component drives the movable plate 26 to slide along the slide way 241.

More specifically, the linear driving assembly includes a motor 22 and a screw 23, one end of the screw 23 is rotatably connected to a back plate 25, the other end of the screw 23 is drivingly connected to the motor 22, and the screw 23 is connected to a movable plate 26. Further, the screw rod 23 passes through the lower part of the movable plate 26, a passing gap 243 allowing the lower part of the movable plate 26 and the screw rod 23 to pass through is provided in the slide 241, and a step surface 244 for placing the aluminum case and the clamping plate 21 is provided in the slide 241. Further, the passage gap 243 is formed by two side plates 242 spaced apart, and the step surfaces 244 are provided on the sides of the two side plates 242 adjacent to each other. It should be further noted that the height of the screw 23 is lower than the height of the step surface 244, and the aluminum case can be placed above the screw 23 so that the aluminum case and the clamping plate 21 do not interfere with the screw 23.

In order to improve the stability of the movement of the movable plate 26, the working platform is provided with a sliding rail 11, and the length direction of the sliding rail 11 is parallel to the length direction of the clamping frame 24. The movable plate 26 is provided with a chute 27, the chute 27 is embedded on the slide rail 11, and the slide rail 11 and the chute 27 are respectively provided with a group on two sides of the movable plate 26. Further, it is further required to describe the movable plate 26 that the movable plate 26 does not interfere with the side plate 242 of the slide 241 when moving, specifically, the movable plate 26 of the present application is provided with a through hole 261 for allowing the side plate 242 of the slide 241 to pass through, so as to realize stable movement of the movable plate 26 along the length direction of the slide 241.

The motor 22 is started to drive the screw rod 23 to rotate, so that the movable plate 26 is driven to move towards the direction close to the back plate 25 to clamp the aluminum shell arranged between the two adjacent clamping plates 21. Further, a return spring 4 is provided between any adjacent two of the clamping plates 21, and the expansion and contraction direction of the return spring 4 is parallel to the movement direction of the clamping plates 21. When the movable plate 26 moves in a direction approaching the back plate 25, the return spring 4 is compressed. When the movable plate 26 moves in a direction away from the back plate 25, the return spring 4 returns to push the adjacent two clamping plates 21 away from each other, so that the aluminum shell can be conveniently taken out from between the adjacent two clamping plates 21.

In order to improve the stability of the movement of the clamping plate 21, the clamping device 2 further comprises guide rods 28, the length direction of the guide rods 28 is parallel to the length direction of the clamping frame 24, one or more guide rods 28 are respectively arranged on two sides of the clamping plate 21, and the technical scheme of the application is that one guide rod 28 is preferably arranged on two sides of the clamping plate 21, both guide rods 28 are fixedly arranged on the back plate 25, and any guide rod 28 penetrates through the clamping plate 21 and is in sliding fit with the clamping plate 21.

As shown in fig. 1, 2, 3 and 4, a flow valve 32 and a pressure regulating valve 33 are provided in this order from an external air source to the aluminum case in the air pipe 31. The aluminum shell of the application comprises a square aluminum shell.

In actual production, the concavity of the aluminum shell is between-2 and-0.9 after negative pressure formation, the aluminum shell is inflated between the two processes of secondary liquid injection after formation, and the inflation pressure is between 2 and 40 KPa. The pressure is above 40KPa, the flow is larger, the gap between the pole piece and the diaphragm is easy to increase, the risk of black spots is increased, and the product quality is influenced. The pressure regulating valve 33 and the flow valve 32 are required to be added in the process of regulating the pressure. After the pressure is regulated, the flow valve 32 is regulated to reduce the flow, so that the impact of the inflation on the winding core is reduced to the greatest extent.

If only the aluminum shell is inflated, when the flatness of the aluminum shell with the dent degree of about-2 is qualified, the aluminum shell with the dent degree of-0.9 can bulge. In order to avoid the bulge of the aluminum shell, a flat clamp is used for applying clamping force to the battery cell outside the aluminum shell while the aluminum shell is inflated, and finally the aluminum shell forms a plane state from a concave state.

According to the technical scheme, the motor 22 is adopted to drive the clamping plate 21 to give the aluminum shell clamping force, the stroke of the clamping plate 21 is changed to change the clamping force given to the aluminum shell, the motor 22 is used to drive the lead screw 23 to rotate, the lead screw 23 drives the movable plate 26 to move, and then the clamping plate 21 is driven to move. Compared with the technical scheme of adopting the cylinder, the cylinder has explosion risk when using great carrying force, and when the pressure of inflating to the inside of aluminum hull is 0.1Mpa and above, and the inflation time is 2s and above, the aluminum hull takes place to bulge, and the aluminum hull of bulge can spring the cylinder open to can't exert enough stable clamping force to the aluminum hull.

The motor 22 has stronger carrying capacity, higher safety than the cylinder, and has the accurate advantage in point location, possesses a plurality of aluminum shells and is by plastic ability simultaneously to promote production efficiency.

In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the utility model and the features of the embodiments may be combined with each other arbitrarily without conflict.

Claims

1. The flatness shaping tool for the aluminum shell is characterized by comprising a working platform (1), a clamping device (2) and an inflating device (3), wherein the clamping device (2) is arranged on the working platform (1);

the clamping device (2) comprises a clamping frame (24), a driving device and at least two clamping plates (21), wherein any clamping plate (21) is arranged in the clamping frame (24) in a sliding mode, an aluminum shell is placed between two adjacent clamping plates (21), and the driving device drives the clamping plates (21) to slide in the clamping frame (24);

The air charging device (3) comprises an air pipe (31) communicated with the inner space of the aluminum shell, and the air pipe (31) is communicated with an external air source.

2. The flatness shaping tool for aluminum cases as recited in claim 1, wherein the clamping frame (24) includes a slide (241), any one of the clamping plates (21) is disposed on the slide (241) and slidingly cooperates with the slide (241), and a back plate (25) is fixedly disposed at one end of the slide (241);

The driving device comprises a linear driving assembly and a movable plate (26), wherein the movable plate (26) is arranged at one end of the slideway (241) far away from the backboard (25), and the driving assembly drives the movable plate (26) to slide along the slideway (241).

3. The flatness shaping tool for aluminum cases as claimed in claim 2, wherein the linear driving assembly comprises a motor (22) and a screw (23), one end of the screw (23) is rotatably connected with the back plate (25), the other end of the screw (23) is in transmission connection with the motor (22), and the screw (23) passes through the movable plate (26) and is connected with the movable plate (26).

4. A flatness shaping tool for aluminium shells according to claim 3, characterized in that the screw (23) passes through the lower part of the movable plate (26), a passing gap (243) is provided in the slide (241) for allowing the lower part of the movable plate (26) and the screw (23) to pass through, and a step surface (244) for placing the clamping plate (21) and the aluminium shell is provided in the slide (241).

5. The flatness shaping tool for aluminum cases as recited in claim 2, characterized in that the slide (241) includes two side plates (242) disposed at intervals, and the movable plate (26) is provided with a through hole (261) allowing the side plates (242) to pass through.

6. The flatness shaping tool for aluminum cases according to claim 2, wherein the working platform (1) is provided with a slide rail (11), the movable plate (26) is provided with a slide groove (27), and the slide groove (27) is embedded on the slide rail (11).

7. Flatness shaping tool for aluminium shells according to claim 1, characterized in that a return spring (4) is arranged between any two adjacent clamping plates (21), the extension and retraction direction of the return spring (4) being parallel to the movement direction of the clamping plates (21).

8. The flatness shaping tool for aluminum cases as claimed in claim 1, wherein the clamping device (2) further comprises guide rods (28), one or more guide rods are respectively arranged on two sides of the clamping plate (21) of the guide rods (28), and any guide rod (28) penetrates through the clamping plate (21) and is in sliding fit with the clamping plate.

9. The flatness shaping tool for aluminum cases as claimed in claim 1, wherein the surface of the clamping plate (21) contacting the aluminum case is a plane, and a pressure sensor is provided on the surface of the clamping plate (21) contacting the aluminum case.

10. The flatness shaping tool for aluminum cases according to claim 1, wherein a flow valve (32) and a pressure regulating valve (33) are sequentially arranged on the air pipe (31) from an external air source to the aluminum cases.