Forming mold for lithium battery shell production

By introducing a buffer component into the molding die used in the production of lithium battery casings, the impact force and vibration are consumed by the rebound damping part, which solves the problem of sheet material misalignment in traditional molds and achieves higher product precision.

CN223518451UActive Publication Date: 2025-11-07SHENZHEN BMC TECH CO LTD
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Patent Information

Application Number
CN202423040090.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-11-07
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

In the traditional lithium battery casing production process, the forming mold causes the sheet material to shift due to impact and vibration during the extrusion process, affecting the dimensional accuracy of the product.

Method used

A molding die for lithium battery casing production was designed, comprising a molding component and a buffer component. The buffer component consumes impact force and vibration through a rebound damping part, and adjusts the rebound deformation by an adjusting part. It includes components such as a plug rod, a fixing nut, a friction ring, a compression spring, and an adjusting bolt, which flexibly support the battery casing material.

Benefits of technology

This effectively reduces the offset of the sheet metal during the extrusion process and improves the dimensional accuracy of lithium battery casing products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a forming die for producing a lithium battery shell, which comprises a lower seat and an upper seat arranged at the top of the lower seat, and further comprises a forming assembly, the forming assembly comprises a connecting seat arranged at the top of the lower seat, a forming seat is arranged at the top of the connecting seat, an extrusion seat is arranged at the bottom of the upper seat, and a movable plate is arranged on the side, opposite to the extrusion seat, of the forming seat; the buffering assembly comprises inserting rods symmetrically arranged at the bottom of the movable plate, the bottom ends of the inserting rods are connected to the top of the forming base in a penetrating mode, springback damping parts are arranged at the penetrating positions of the inserting rods and the forming base, and adjusting parts are connected to the sides of the forming base in a penetrating mode; according to the utility model, the resilient damping part is extruded by the movable plate, the resilient damping part consumes impact force and vibration on the shell plate, and the resilient deformation of the resilient damping part is adjusted by the adjusting part; according to the design, the problem of plate deviation caused by impact force and vibration in the plate extrusion process can be solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery shell production equipment field, especially in lithium battery shell production with forming die. BACKGROUND

[0002] In the lithium battery shell production process, forming die is one of the key equipment, is used for extruding lithium battery shell plate material into the shape required, and the traditional forming die usually adopts the mode of directly extruding the plate material with the extrusion seat, however, when directly adopting the forming seat and the extrusion seat to extrude the shell plate material, due to the existence of impact force and vibration, the plate material is prone to deviation or deformation in the extrusion process, thereby affecting the size accuracy of the lithium battery shell product, therefore, in order to solve the problem that the plate material is prone to positional deviation due to impact force and vibration in the extrusion process, the utility model provides a kind of forming die for lithium battery shell production. UTILITY MODEL CONTENTS

[0003] The utility model is to provide a kind of forming die for lithium battery shell production, to solve the problem raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of forming die for lithium battery shell production, including lower seat and the upper seat being arranged in the top of lower seat, further including:

[0005] Forming assembly, the forming assembly is used for the extrusion forming of battery shell plate, the forming assembly includes the connecting seat being arranged in the top of lower seat and being located in the bottom of upper seat, the top of the connecting seat is provided with forming seat, the bottom of the upper seat is provided with extrusion seat, the opposite side of the forming seat and extrusion seat is provided with movable plate;

[0006] Buffering assembly, the buffering assembly is used for the flexible support of battery shell plate plate material, the buffering assembly includes the plug rod being symmetrically arranged in the bottom of movable plate, the bottom end of the plug rod is connected to the top of forming seat, the plug rod and the insertion place of forming seat are provided with rebound damping part, the side of the forming seat is connected with the adjusting part for adjusting the rebound deformation of rebound damping part.

[0007] Preferably, the rebound damping part includes fixed nut, friction ring and compression spring, the fixed nut is arranged on the top of friction ring, the compression spring is arranged on the bottom of friction ring, the bottom of the plug rod is connected with extrusion sleeve for bearing the extrusion of adjusting part.

[0008] Preferably, the bottom of the movable plate is provided with hidden slot, and the hidden slot is used for the insertion of fixed nut.

[0009] Preferably, the adjusting part comprises an adjusting bolt threaded connected to the side of the forming seat, the threaded connection part of the adjusting bolt and the forming seat is provided with an extrusion groove, and the end of the adjusting bolt is provided with a circular truncated cone extrusion block for extruding the extrusion sleeve.

[0010] Preferably, the circular truncated cone extrusion block and the extrusion sleeve are arranged in the interior of the extrusion groove.

[0011] Preferably, the top of the lower seat and the side of the connecting seat are symmetrically provided with positioning columns, the bottom of the upper seat is symmetrically provided with positioning sleeves for the threaded connection of the positioning columns, and the outer side of the positioning column is sleeved with a plurality of reinforcing sleeves.

[0012] Preferably, the top of the upper seat is provided with a connecting rod, and the connecting rod is used for connecting the downward pressing cylinder.

[0013] The technical effects and advantages of the utility model are as follows:

[0014] The utility model discloses a buffering assembly supporting movable plate arranged at the top of the forming seat, the rebound damping part in the buffering assembly consumes the impact force and vibration received by the shell plate material, the adjusting part can adjust the rebound deformation of the rebound damping part, compared with directly extruding the plate material by the forming seat and the extrusion seat, the design can solve the problem of plate material deviation caused by impact force and vibration in the plate material extrusion process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the utility model.

[0016] Figure 2 It is the structure schematic view of the upper seat of the utility model.

[0017] Figure 3 It is the partial section view of the overall structure of the utility model.

[0018] Figure 4 It is the front section view of the buffering assembly of the utility model.

[0019] Figure 5 It is the side section view of the buffering assembly of the utility model.

[0020] In the drawing: 1, lower seat;2, upper seat;201, connecting rod;202, positioning sleeve;3, connecting seat;4, forming seat;5, extrusion seat;6, movable plate;601, hidden groove;7, buffering assembly;701, plug rod;702, fixed nut;703, friction ring;704, compression spring;705, extrusion sleeve;706, adjusting bolt;707, circular truncated cone extrusion block;8, positioning column;801, reinforcing sleeve. DETAILED DESCRIPTION

[0021] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative labor are within the protection scope of the present utility model.

[0022] The utility model provides a kind of forming die for lithium battery shell production as Figures 1-5 As shown in a kind of forming die for lithium battery shell production, including lower seat 1 and the upper seat 2 of being set in the top of lower seat 1, still including forming assembly and buffer component 7;

[0023] It needs to be explained that the top of lower seat 1 and the side of connecting seat 3 symmetrically arranged positioning column 8, the bottom of upper seat 2 is symmetrically arranged for the positioning of positioning column 8 and is inserted into positioning sleeve 202, the outside of positioning column 8 is equipped with a plurality of reinforcing sleeves 801, the top of upper seat 2 is provided with connecting rod 201;

[0024] Specifically, positioning column 8 and lower seat 1 are fixed by welding, positioning sleeve 202 and upper seat 2 are fixed by screwing, the insertion of connecting rod 201 and upper seat 2 is fixed by welding, and connecting rod 201 is used to connect the down pressure cylinder;

[0025] Specifically, forming assembly is used for the extrusion forming of battery shell plate, and forming assembly includes connecting seat 3 arranged on the top of lower seat 1 and located at the bottom of upper seat 2, the top of connecting seat 3 is provided with forming seat 4, the bottom of upper seat 2 is provided with extrusion seat 5, and the opposite side of forming seat 4 and extrusion seat 5 is provided with movable plate 6;

[0026] It needs to be explained that connecting seat 3 and lower seat 1 are fixed by screwing, forming seat 4 and connecting seat 3 are fixed by welding, extrusion seat 5 and upper seat 2 are fixed by screwing, and the cross-sectional dimension of movable plate 6 is the same as the top cross-sectional dimension of forming seat 4;

[0027] Specifically, buffer component 7 is used for flexible support battery shell plate, and buffer component 7 includes plug rod 701 symmetrically arranged at the bottom of movable plate 6, the bottom end of plug rod 701 is connected to the top of forming seat 4, the insertion of plug rod 701 and forming seat 4 is provided with rebound damping part, and the side of forming seat 4 is connected with adjusting part for adjusting the rebound deformation of rebound damping part;

[0028] It should be noted that the plug rod 701 is welded and fixed with the movable plate 6, the top of the forming seat 4 is provided with a movable groove for the rebound damping part to move, the rebound damping part includes a fixed nut 702, a friction ring 703 and a compression spring 704 sleeved outside the plug rod 701, the fixed nut 702 is arranged at the top of the friction ring 703, the compression spring 704 is arranged at the bottom of the friction ring 703, and the bottom of the plug rod 701 is connected with an extrusion sleeve 705 for bearing the extrusion of the adjusting part;

[0029] Specifically, the friction ring 703 is welded and fixed outside the plug rod 701, the friction ring 703 is in close contact with the inner wall of the movable groove, the top inner wall of the movable groove is provided with a thread corresponding to the fixed nut 702, the fixed nut 702 is threadedly fixed with the inner wall of the movable groove, and the position of the friction ring 703 is limited, and the bottom of the movable plate 6 is provided with a hidden groove 601 for the plug-in of the fixed nut 702;

[0030] Specifically, the adjusting part includes an adjusting bolt 706 threadedly connected to the side of the forming seat 4, and a circular table extrusion block 707 arranged at the end of the adjusting bolt 706 and used for extruding the extrusion sleeve 705;

[0031] It should be noted that the plug rod 701 is welded and fixed with the movable plate 6, the top of the forming seat 4 is provided with a movable groove for the rebound damping part to move, the rebound damping part includes a fixed nut 702, a friction ring 703 and a compression spring 704 sleeved outside the plug rod 701, the fixed nut 702 is arranged at the top of the friction ring 703, the compression spring 704 is arranged at the bottom of the friction ring 703, and the bottom of the plug rod 701 is connected with an extrusion sleeve 705 for bearing the extrusion of the adjusting part;

[0032] Specifically, the side of the forming seat 4 is provided with a threaded hole for the plug-in of the adjusting bolt 706, and the threaded hole is in communication with the extrusion groove;

[0033] In actual use, the movable plate 6 supported by the buffer assembly 7 is arranged at the top of the forming seat 4, the rebound damping part in the buffer assembly 7 consumes the impact force and vibration received by the shell plate, and the adjusting part can adjust the rebound deformation amount of the rebound damping part. Compared with directly extruding the plate by the forming seat 4 and the extrusion seat 5, the design can solve the problem of plate deviation caused by impact force and vibration during plate extrusion.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A forming mold for producing a lithium battery case, comprising a lower seat (1) and an upper seat (2) arranged on the top of the lower seat (1), characterized in that, Also include: The forming assembly is used for the extrusion forming of the battery shell plate, and the forming assembly comprises a connecting seat (3) arranged on the top of a lower seat (1) and located on the bottom of an upper seat (2), the top of the connecting seat (3) is provided with a forming seat (4), the bottom of the upper seat (2) is provided with an extrusion seat (5), and the opposite sides of the forming seat (4) and the extrusion seat (5) are provided with movable plates (6); A buffering assembly (7) is used for flexibly supporting the battery shell plate, the buffering assembly (7) comprises plug rods (701) symmetrically arranged on the bottom of the movable plate (6), the bottom end of the plug rod (701) is connected to the top of the forming seat (4) in a penetrating mode, the penetrating position of the plug rod (701) and the forming seat (4) is provided with a rebound damping part, and the side of the forming seat (4) is connected with an adjusting part for adjusting the rebound deformation amount of the rebound damping part in a penetrating mode.

2. The forming mold for producing a lithium battery case according to claim 1, wherein The rebound damping part comprises a fixed nut (702), a friction ring (703) and a compression spring (704) which are arranged on the outside of the plug rod (701), the fixed nut (702) is arranged on the top of the friction ring (703), the compression spring (704) is arranged on the bottom of the friction ring (703), and the bottom of the plug rod (701) is connected with an extrusion sleeve (705) for bearing the extrusion of the adjusting part in a penetrating mode.

3. The forming mold for producing a lithium battery case according to claim 2, wherein The bottom of the movable plate (6) is provided with a hidden groove (601) for penetrating the fixed nut (702).

4. The forming mold for producing a lithium battery case according to claim 2, wherein The adjusting part comprises an adjusting bolt (706) which is connected to the side of the forming seat (4) in a threaded penetrating mode, the penetrating position of the adjusting bolt (706) and the forming seat (4) is provided with an extrusion groove, and the end of the adjusting bolt (706) is provided with a circular truncated cone extrusion block (707) for extruding the extrusion sleeve (705).

5. The forming mold for producing a lithium battery case according to claim 4, wherein The circular truncated cone extrusion block (707) and the extrusion sleeve (705) are arranged in the interior of the extrusion groove.

6. The forming mold for producing a lithium battery case according to claim 1, wherein The top of the lower seat (1) and the side of the connecting seat (3) are symmetrically provided with positioning columns (8), the bottom of the upper seat (2) is symmetrically provided with positioning sleeves (202) for penetrating the positioning columns (8), and the outside of the positioning column (8) is provided with a plurality of reinforcing sleeves (801).

7. The forming mold for producing a lithium battery case according to claim 6, wherein The top of the upper seat (2) is provided with a connecting rod (201), and the connecting rod (201) is used for connecting a downward pressing cylinder.