Female die mechanism of pre-nickel-plated battery steel shell punch forming machine

By setting buffer components and an upper push plate on the die set and die base, the problem of nickel plating layer scraping off pre-nickel-plated steel during the stamping process is solved, effectively protecting the battery steel shell and extending the service life of the battery pack.

CN224222507UActive Publication Date: 2026-05-12新乡市盛达新能源科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
新乡市盛达新能源科技有限公司
Filing Date
2025-07-10
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

During the stamping process of the battery steel shell, the pre-plated nickel layer is easily scraped off at the edge of the die cavity, leading to oxidation and corrosion, which affects the service life of the battery pack.

Method used

Buffer components are installed on both sides of the die cavity of the die set, and an upper push plate is provided on the die base. The buffer components make soft contact with the pre-nickel-plated steel to avoid scraping off the nickel plating layer. At the same time, the upper push plate is used to flatten the surface of the steel to complete the forming.

Benefits of technology

This effectively prevents the nickel plating layer from being scraped off at the upper end of the die cavity of the pre-plated nickel steel, ensuring the protective effect of the battery steel shell and extending the service life of the battery pack.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a female die mechanism of a pre-nickel-plated battery steel shell stamping forming machine, and relates to the technical field of stamping dies. The die comprises a female die table and a female die base, a female die cavity is formed in the upper end face of the female die table, two vertically-upward upper push plates are fixedly arranged on the upper end face of the female die base, the two upper push plates penetrate through the bottom face of the female die table and extend into the female die cavity, and the portions, on the two sides of the female die cavity, of the upper table face of the female die table are each provided with a buffer component in a sliding mode. According to the utility model, the buffer parts are respectively arranged on the two sides of the concave die cavity on the upper end table surface of the concave die table, and when the pre-nickel-plated steel is pressed into the concave die cavity by the convex die, the buffer parts retract and are in soft contact with the pre-nickel-plated steel, so that a nickel-plated layer of the pre-nickel-plated steel is prevented from being scraped by the upper end opening of the concave die cavity; the two upper push plates are fixedly arranged on the female die base, penetrate through the female die table and extend into the female die cavity, and after the pre-nickel-plated steel is pressed into the female die cavity, the upper push plates on the two sides push the two sides of the steel to be flat so that the steel can be formed.
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Description

Technical Field

[0001] This utility model belongs to the field of stamping die technology, and in particular relates to a die mechanism for a pre-nickel-plated battery steel shell stamping forming machine. Background Technology

[0002] Nickel plating on battery steel casings can prevent oxidation and corrosion, thus protecting the battery pack. However, during the stamping process, the pre-nickel-plated steel casing is pressed downwards into the die by the stamping punch. This causes the pre-nickel-plated steel plate to rub against the edge of the die cavity, scraping off the nickel plating layer. The scraped area is prone to oxidation and corrosion, failing to provide protection for the battery steel casing and affecting the battery pack's lifespan.

[0003] To address these issues, we provide a die mechanism for a pre-nickel-plated battery steel shell stamping machine. Utility Model Content

[0004] The purpose of this utility model is to provide a die mechanism for a pre-nickel-plated battery steel shell stamping machine. By installing buffer components on both sides of the die cavity on the upper surface of the die platform, when the pre-nickel-plated steel is pressed into the die cavity by the punch, the buffer components retract and make soft contact with the pre-nickel-plated steel, preventing the nickel plating layer from being scraped off the pre-nickel-plated steel by the upper port of the die cavity. By fixing two upper push plates on the die base and making the upper push plates pass through the die platform and extend into the die cavity, when the pre-nickel-plated steel is pressed into the die cavity, the upper push plates on both sides flatten the sides of the steel to form it.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a die mechanism for a pre-plated nickel battery steel shell stamping machine, comprising a die platform and a die base. The upper surface of the die platform has a die cavity, and the upper surface of the die base has two vertically upward push plates fixedly mounted. The two push plates penetrate the bottom surface of the die platform and extend into the die cavity. A buffer component is slidably installed on the upper surface of the die platform on both sides of the die cavity.

[0007] A further feature of this invention is that guide pillars are fixedly provided on the upper side plates at both ends of the die holder, and guide pillar channels are fixedly provided on the upper side plates at both ends of the die table. The two guide pillars are slidably sleeved in the guide pillar channels on both sides. An upper top spring is sleeved on the outer side of the guide pillar. One end of the upper top spring is fixedly connected to the lower end face of the guide pillar channel and the other end is fixedly connected to the upper plate surface of the die holder.

[0008] A further feature of this invention is that adapter ears are fixedly provided at both ends of the upper push plate, and an upper push roller is rotatably installed between the two adapter ears at the upper end of the upper push plate.

[0009] A further feature of this invention is that the buffer component includes a folding roller and a roller slide block. The folding roller is rotatably installed in the roller slide block. Slide grooves are respectively opened on both sides of the die cavity at the upper end of the die platform. The roller slide block is horizontally slidably sleeved in the slide grooves.

[0010] A further feature of this invention is that a set of return springs is fixedly connected to the side of the roller slide away from the die cavity, and the end of the return spring away from the roller slide is fixedly connected to the inner wall of the slide groove away from the die cavity.

[0011] A further feature of this invention is that an upper cover plate is fixedly provided on the upper end face of the roller slide away from the die cavity, and a folding plate is fixedly provided on the outer side wall of the upper end of the folding roller. The folding plate extends away from the die cavity, and a tension reset assembly is hinged to the side of the folding plate away from the die cavity. The end of the tension reset assembly away from the folding plate is hinged to the side of the upper cover plate away from the die cavity.

[0012] A further feature of this invention is that the tension reset assembly includes a tension cylinder, a tension rod, and a cylinder cover. The cylinder cover is fixedly installed at the open end of the tension cylinder. The tension rod slides through the cylinder cover and extends into the tension cylinder. A piston is fixedly provided at one end of the tension rod inside the tension cylinder. The end of the tension rod away from the tension cylinder is hinged to the surface of the folding plate. The closed end of the tension cylinder is hinged to the surface of the upper cover plate. A compression spring is sleeved on the outer side of the section of the tension rod extending into the tension cylinder.

[0013] This utility model has the following beneficial effects:

[0014] This invention installs buffer components on both sides of the die cavity on the upper surface of the die platform. When the pre-nickel-plated steel is pressed into the die cavity by the punch, the buffer components retract and make soft contact with the pre-nickel-plated steel, thus preventing the nickel plating layer from being scraped off the pre-nickel-plated steel by the upper port of the die cavity.

[0015] This utility model fixes two upper push plates on the die base, and makes the upper push plates pass through the die table and extend into the die cavity. When the pre-nickel-plated steel is pressed into the die cavity, the upper push plates on both sides flatten the sides of the steel to form it.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the die mechanism of a pre-nickel-plated battery steel shell stamping machine.

[0019] Figure 2 This is a schematic diagram of the die holder structure.

[0020] Figure 3 This is a side sectional view of the die holder and die table.

[0021] Figure 4 This is a schematic diagram of the structure of the die set and the buffer component.

[0022] Figure 5 This is an exploded view of the buffer component.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1-Die table, 101-Die cavity, 102-Buffer component, 102a-Folding roller, 102a-1-Folding plate, 102b-Roller slide, 102b-1-Reset spring, 102b-2-Upper cover plate, 102c-Tension reset assembly, 102c-1-Tension cylinder, 102c-2-Tension rod, 102c-3-Cylinder cover, 102c-4-Compression spring, 103-Guide post channel, 104-Slide groove, 2-Die base, 201-Upper push plate, 201a-Adapter ear, 201a-1-Upper push roller, 202-Guide post, 202a-Upper top spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0026] Please see Figures 1 to 3 This utility model relates to a die mechanism for a pre-nickel-plated battery steel shell stamping machine, comprising a die table 1 and a die base 2. By installing buffer components 102 on both sides of the die cavity 101 on the upper surface of the die table 1, when the pre-nickel-plated steel is pressed into the die cavity 101 by the punch, the buffer components 102 retract and make soft contact with the pre-nickel-plated steel, preventing the nickel plating layer from being scraped off the pre-nickel-plated steel by the upper port of the die cavity 101. By fixing two upper push plates 201 on the die base 2, and making the upper push plates 201 penetrate the die table 1 and extend into the die cavity 101, when the pre-nickel-plated steel is pressed into the die cavity 101, the upper push plates 201 on both sides flatten the sides of the steel to form it.

[0027] Specifically, a cavity 101 is provided on the upper surface of the die set 1, and two vertically upward push plates 201 are fixed on the upper surface of the die set 2. The two push plates 201 penetrate the bottom surface of the die set 1 and extend into the cavity 101. A buffer component 102 is slidably installed on the upper surface of the die set 1 on both sides of the cavity 101.

[0028] Furthermore, guide pillars 202 are fixedly provided on the upper side plates at both ends of the die holder 2, and guide pillar channels 103 are fixedly provided on the upper side plates at both ends of the die table 1. The two guide pillars 202 are slidably sleeved in the guide pillar channels 103 on both sides. An upper push spring 202a is sleeved on the outer side of the guide pillar 202. One end of the upper push spring 202a is fixedly connected to the lower end face of the guide pillar channel 103 and the other end is fixedly connected to the upper plate surface of the die holder 2. When the pre-plated nickel steel is pressed into the die cavity 101, the die holder 2 moves downward under pressure, so that the upper push plate 201 pushes and forms the pre-plated nickel steel on the side of the punch. After the forming is completed, the die table 1 rises and resets under the action of the upper push spring 202a.

[0029] Furthermore, the upper push plate 201 is fixed with adapter ears 201a at both ends, and an upper push roller 201a-1 is rotatably installed between the two adapter ears 201a at the upper end of the upper push plate 201. The upper push roller 201a-1 contacts the surface of the pre-nickel-plated steel and pushes the pre-nickel-plated steel upward to form it, so as to prevent the upper push plate 201 from scratching the nickel plating layer on the surface of the pre-nickel-plated steel.

[0030] The operation process in this embodiment is as follows:

[0031] The pre-nickel-plated steel is placed above the die set 1. The punch presses the pre-nickel-plated steel into the die cavity 101. As the pre-nickel-plated steel is pressed into the die cavity 101, the buffer components 102 on both sides retract to maintain soft contact with the pre-nickel-plated steel and prevent the nickel plating layer from being scratched. When the pre-nickel-plated steel is pressed into the die cavity 101, the die set 2 moves downward under pressure, so that the upper push roller 201a-1 at the upper end of the upper push plate 201 pushes and forms the pre-nickel-plated steel on the side of the punch. After forming is completed, the die set 1 is raised and reset under the action of the upper top spring 202a. Example 2

[0032] Please see Figures 1 to 5 Based on Embodiment 1, the buffer component 102 includes a folding roller 102a and a roller slide 102b. The folding roller 102a is rotatably installed in the roller slide 102b, and the roller slide 102b is slidably sleeved in the slide groove 104. When the pre-nickel-plated steel is pressed into the die cavity 101, the pre-nickel-plated steel rolls in contact with the roller surface of the folding roller 102, while pushing the roller slide 102b to move backward, thus avoiding scraping off the nickel plating layer on the surface of the pre-nickel-plated steel.

[0033] Specifically, the folding roller 102a is rotatably installed in the roller slide 102b, and the upper end of the die table 1 has slide grooves 104 on both sides of the die cavity 101, and the roller slide 102b is horizontally slidably sleeved in the slide grooves 104.

[0034] Furthermore, a set of return springs 102b-1 is fixedly connected to the side of the roller slide block 102b away from the die cavity 101. The end of the return spring 102b-1 away from the roller slide block 102b is fixedly connected to the inner wall of the slide groove 104 away from the die cavity 101. When the pre-plated nickel steel is stamped and discharged, the return spring 102b-1 pushes the roller slide block 102b forward to reset it.

[0035] Furthermore, an upper cover plate 102b-2 is fixedly provided on the upper end face of the roller slide 102b away from the die cavity 101, and a folding plate 102a-1 is fixedly provided on the outer side wall of the upper end of the folding roller 102a. The folding plate 102a-1 extends away from the die cavity 101, and a tension reset assembly 102c is hinged to the side of the folding plate 102a-1 away from the die cavity 101. The end of the tension reset assembly 102c away from the folding plate 102a-1 is hinged to the side of the upper cover plate 102b-2 away from the die cavity 101. When the pre-nickel-plated steel is pressed into the die cavity 101, the pre-nickel-plated steel rolls in contact with the roller surface of the folding roller 102, and at the same time, the folding plate 102a-1 is flipped up and one side of the pre-nickel-plated steel is lifted up to facilitate forming.

[0036] Furthermore, the tension reset assembly 102c includes a tension cylinder 102c-1, a tension rod 102c-2, and a cylinder cover 102c-3. The cylinder cover 102c-3 is fixedly installed at the open end of the tension cylinder 102c-1. The tension rod 102c-2 slides through the cylinder cover 102c-3 and extends into the tension cylinder 102c-1. A piston is fixed at one end of the tension rod 102c-2 inside the tension cylinder 102c-1. The tension rod 102c-2 is located away from the tension cylinder 102c-1. One end of the cylinder 102c-1 is hinged to the surface of the folding plate 102a-1, and the closed end of the stretching cylinder 102c-1 is hinged to the surface of the upper cover plate 102b-2. A compression spring 102c-4 is sleeved on the outer side of the stretching rod 102c-2 extending into the stretching cylinder 102c-1. After the pre-nickel-plated steel is stamped and discharged, the stretching rod 102c-2 is reset under the action of the compression spring 102c-4, and the folding plate 102a-1 is reset.

[0037] The operation process in this embodiment is as follows:

[0038] When the pre-nickel-plated steel is pressed into the die cavity 101, the pre-nickel-plated steel rolls in contact with the roller surface of the folding roller 102, and at the same time pushes the roller slide 102b to move backward to avoid scraping off the nickel plating layer on the surface of the pre-nickel-plated steel. The folding plate 102a-1 is flipped up and one side of the pre-nickel-plated steel is lifted to facilitate forming. After the pre-nickel-plated steel is stamped and discharged, the return spring 102b-1 pushes the roller slide 102b forward to reset it. The tension rod 102c-2 is reset under the action of the compression spring 102c-4, and the folding plate 102a-1 is reset.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A die mechanism for a pre-nickel-plated battery steel shell stamping machine, characterized in that: The device includes a die set (1) and a die base (2). The die set (1) has a die cavity (101) on its upper surface. The die base (2) has two vertically upward push plates (201) fixed on its upper surface. The two push plates (201) penetrate the bottom surface of the die set (1) and extend into the die cavity (101). A buffer component (102) is slidably installed on both sides of the die cavity (101) on the upper surface of the die set (1).

2. The die mechanism of a pre-nickel-plated battery steel shell stamping machine according to claim 1, characterized in that: Guide pillars (202) are fixedly provided on the upper side plates at both ends of the die holder (2), and guide pillar channels (103) are fixedly provided on the upper side plates at both ends of the die table (1). The two guide pillars (202) are slidably sleeved in the guide pillar channels (103) on both sides. An upper top spring (202a) is sleeved on the outside of the guide pillar (202). One end of the upper top spring (202a) is fixedly connected to the lower end face of the guide pillar channel (103) and the other end is fixedly connected to the upper plate surface of the die holder (2).

3. The die mechanism of a pre-nickel-plated battery steel shell stamping machine according to claim 2, characterized in that: The upper push plate (201) is fixed with adapter ears (201a) at both ends, and an upper push roller (201a-1) is rotatably installed between the two adapter ears (201a) at the upper end of the upper push plate (201).

4. The die mechanism of a pre-nickel-plated battery steel shell stamping machine according to claim 1, characterized in that: The buffer component (102) includes a folding roller (102a) and a roller slide (102b). The folding roller (102a) is rotatably installed in the roller slide (102b). The upper end of the die set (1) has grooves (104) on both sides of the die cavity (101). The roller slide (102b) is horizontally slidably sleeved in the grooves (104).

5. The die mechanism of a pre-nickel-plated battery steel shell stamping machine according to claim 4, characterized in that: A set of return springs (102b-1) is fixedly connected to the side of the roller slide (102b) away from the die cavity (101). The end of the return spring (102b-1) away from the roller slide (102b) is fixedly connected to the inner wall of the slide groove (104) away from the die cavity (101).

6. The die mechanism of a pre-nickel-plated battery steel shell stamping machine according to claim 5, characterized in that: An upper cover plate (102b-2) is fixedly provided on the upper end face of the roller slide (102b) away from the die cavity (101). A folding plate (102a-1) is fixedly provided on the outer side wall of the upper end of the folding roller (102a). The folding plate (102a-1) extends away from the die cavity (101) at one end. A tension reset assembly (102c) is hinged to the side of the folding plate (102a-1) away from the die cavity (101). One end of the tension reset assembly (102c) away from the folding plate (102a-1) is hinged to the side of the upper cover plate (102b-2) away from the die cavity (101).

7. The die mechanism of a pre-nickel-plated battery steel shell stamping machine according to claim 6, characterized in that: The tension reset assembly (102c) includes a tension cylinder (102c-1), a tension rod (102c-2), and a cylinder cover (102c-3). The cylinder cover (102c-3) is fixedly installed at the open end of the tension cylinder (102c-1). The tension rod (102c-2) slides through the cylinder cover (102c-3) and extends into the tension cylinder (102c-1). A piston is fixedly provided at one end of the tension rod (102c-2) inside the tension cylinder (102c-1). The end of the tension rod (102c-2) away from the tension cylinder (102c-1) is hinged to the surface of the folding plate (102a-1). The closed end of the tension cylinder (102c-1) is hinged to the surface of the upper cover plate (102b-2). A compression spring (102c-4) is sleeved on the outer side of the section of the tension rod (102c-2) extending into the tension cylinder (102c-1).