Blanking and punching die head for battery cap connecting piece

Abstract

The utility model relates to the technical field of stamping machining, in particular to a battery cap connecting piece blanking and punching die head which comprises a punch body, an elastic ejector pin mechanism is coaxially arranged in the punch body, and the elastic ejector pin mechanism is used for ejecting and pressing a blind hole area of a battery cap connecting piece. The elastic ejector pin mechanism can stretch out and draw back in the length direction of the punch body, the jacking end of the elastic ejector pin mechanism extends out of the bottom of the punch body, an annular forming part is arranged at the bottom of the punch body, and the punch with the elastic ejector pin mechanism is used for jacking and protecting a blind hole in a battery cap connecting piece during punching. And the stamping flatness of the blind hole is ensured, and the rate of defective products is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical stamping, in particular to a blanking and punching die head for a battery cap connecting piece. Background Art

[0002] In the battery cap production process, the connector is not only a critical component of its structure but also the cornerstone of ensuring safe and stable battery operation. The blind hole design on the connector, as the key connection point between the battery cap and the internal battery structure, has a crucial impact on battery performance and safety. However, in traditional stamping processes, punching blind holes has always been a technical challenge. First, the design and manufacture of traditional stamping dies often fail to fully account for the unique characteristics of the blind hole area of ​​the connector, resulting in a lack of effective support and protection during the stamping process. This lack of support and protection makes the blind hole prone to deformation, collapse, and even breakage during the stamping process, seriously affecting the overall quality and yield of the product. Secondly, with the continuous advancement of battery technology, the precision and performance requirements of the battery cap connector are becoming increasingly stringent. The punches used in traditional stamping technology are no longer able to meet the high-precision and high-efficiency production requirements, especially when processing blind holes with complex structures and small dimensions. Utility Model Content

[0003] To address the aforementioned issues and improve the processing quality and efficiency of battery cap connectors, this utility model proposes a new battery cap connector blanking and punching die. This die incorporates an elastic ejector mechanism that effectively supports and protects the blind hole area on the connector during the punching process, ensuring the flatness of the blind hole and reducing the defective product rate.

[0004] In order to achieve the above-mentioned purpose, the embodiment of the present utility model specifically adopts the following technical scheme: a battery cap connecting piece blanking punching die head, comprising a punch body, an elastic ejector mechanism coaxially arranged in the punch body, the elastic ejector mechanism being used to press the blind hole area of ​​the battery cap connecting piece, the elastic ejector mechanism being able to extend and retract along the length direction of the punch body, the holding end of the elastic ejector mechanism extending out of the bottom of the punch body, and the bottom of the punch body being provided with an annular forming portion.

[0005] In order to further optimize the present invention, the following technical solutions may be preferably used:

[0006] Preferably, a mounting hole is provided through the middle portion of the punch body, and the mounting hole is a stepped hole. The elastic ejector mechanism includes an ejector arranged in the mounting hole, and a spring is provided in the mounting hole at a position corresponding to the upper portion of the ejector. This design not only improves the overall stability of the mold, but also enables the ejector to more accurately support the blind hole area of ​​the battery cap connecting piece during the stamping process, thereby further improving the flatness and yield rate of the stamping.

[0007] Preferably, the ejector pin includes a mounting portion and a supporting portion, the mounting hole includes a first hole segment and a second hole segment, the second hole segment is located at the bottom of the punch body, the aperture of the first hole segment is larger than the aperture of the second hole segment, the mounting portion is located in the first hole segment and matches the first hole segment, the supporting portion is located in the second hole segment and matches the second hole segment, the ejector pin is divided into a mounting portion and a supporting portion, which respectively match the first hole segment and the second hole segment of the mounting hole. This design makes the ejector pin more stable during installation, and at the same time, the supporting portion can more accurately contact the blind hole area of ​​the battery cap connecting piece, thereby improving the accuracy and effect of the supporting.

[0008] Preferably, the top inner wall of the second hole segment is provided with an internal thread, and an adjusting pressure head is provided at the internal thread. One end of the spring is supported on the adjusting pressure head, and the other end of the spring is supported on the mounting portion of the ejector pin. The holding pressure of the spring is adjusted by adjusting the screw-in depth of the adjusting pressure head. This design allows the user to flexibly adjust the holding pressure according to actual needs to adapt to battery cap connecting pieces of different materials and thicknesses, thereby improving the applicability and flexibility of the mold.

[0009] Preferably, the cross-sectional dimensions of the holding portion match the blind hole area of ​​the battery cap connector, ensuring holding accuracy and stability. This design avoids problems such as blind hole deformation or damage caused by improper holding, further improving product quality and yield.

[0010] Preferably, the mounting portion and the holding portion are integrally formed, which not only improves the overall strength of the ejector pin, but also makes the ejector pin more stable and reliable during the stamping process.

[0011] The beneficial effects of the embodiments of the present utility model are:

[0012] (1) Improving the flatness of blind hole stamping: By introducing an elastic ejector pin mechanism, the die head can effectively support and protect the blind hole area on the battery cap connector during the stamping process. This design ensures that the blind hole can remain flat during the stamping process, avoiding deformation, collapse, or damage caused by lack of support, thereby significantly improving product quality and yield rate.

[0013] (2) Reduced defective product rate: Due to the elastic ejector mechanism, the stamping quality of the blind hole area has been significantly improved, and the defective product rate has been greatly reduced. This not only reduces waste in the production process, but also improves production efficiency and economic benefits.

[0014] (3) Improve the service life of the mold: Since the elastic ejector mechanism can expand and contract along the length of the punch body, it can reduce the impact and wear on the punch body during the stamping process, thereby extending the service life of the mold. This reduces the company's production costs and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0017] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0018] In the figure: 1. Punch body; 2. Elastic ejector pin mechanism; 3. Ring-shaped forming portion; 4. Ejector pin; 5. Spring; 6. Mounting portion; 7. Holding portion; 8. First hole section; 9. Second hole section; 10. Internal thread; 11. Adjusting pressure head. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] See also Figures 1 to 3 The embodiment of the utility model discloses a battery cap connecting piece blanking punching die head, comprising a punch body 1, an elastic ejector mechanism coaxially installed in the punch body, the elastic ejector mechanism is used to press the blind hole area of ​​the battery cap connecting piece, the elastic ejector mechanism 2 can be extended and retracted along the length direction of the punch body, an annular forming part 3 is installed at the bottom of the punch body, the annular forming part forms a closed loop, wherein the supporting end of the elastic ejector mechanism extends out of the bottom of the punch body but does not exceed the annular forming part.

[0021] The specific installation form is as follows: a mounting hole is opened through the middle position of the punch body, and the mounting hole is a stepped hole. The elastic ejector mechanism 2 includes an ejector 4 installed in the mounting hole, and a spring 5 is installed in the mounting hole corresponding to the position above the ejector. This design not only improves the overall stability of the mold, but also enables the ejector to more accurately support the blind hole area of ​​the battery cap connecting piece during the stamping process, further improving the flatness and yield rate of the stamping.

[0022] The ejector pin includes a mounting portion 6 and a supporting portion 7. The mounting hole includes a first hole segment 8 and a second hole segment 9. The second hole segment is located at the bottom of the punch body. The aperture of the first hole segment is larger than that of the second hole segment. The mounting portion is located in the first hole segment and matches the first hole segment. The supporting portion is located in the second hole segment and matches the second hole segment. The ejector pin is divided into a mounting portion and a supporting portion, which respectively match the first hole segment and the second hole segment of the mounting hole. This design makes the ejector pin more stable during installation. At the same time, the supporting portion can more accurately contact the blind hole area of ​​the battery cap connecting piece, thereby improving the accuracy and effect of the supporting portion. In addition, in order to facilitate adjustment and installation, an internal thread 10 is opened on the inner side wall of the top of the second hole section 9, and an adjusting pressure head 11 is installed at the internal thread. The adjusting pressure head 11 is threadedly matched with the internal thread of the second hole section. One end of the spring 5 is supported on the adjusting pressure head, and the other end of the spring 5 is supported on the installation part of the ejector pin. The supporting pressure of the spring is adjusted by adjusting the screw-in depth of the adjusting pressure head. This design allows the user to flexibly adjust the supporting pressure according to actual needs to adapt to battery cap connectors of different materials and thicknesses, thereby improving the applicability and flexibility of the mold.

[0023] The cross-sectional dimensions of the holding portion 7 match the blind hole area of ​​the battery cap connector, ensuring the accuracy and stability of the holding. This design avoids problems such as deformation or breakage of the blind hole caused by improper holding, further improving product quality and yield.

[0024] The mounting portion and the holding portion are integrally formed, which not only improves the overall strength of the ejector pin, but also makes the ejector pin more stable and reliable during the stamping process.

[0025] This stamping tool incorporates an elastic ejector mechanism, enabling the die head to effectively support and protect the blind hole area on the battery cap connector during the stamping process. This design ensures the blind hole remains flat during the stamping process, preventing deformation, collapse, or damage caused by lack of support, thereby significantly improving product quality and yield.

[0026] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0028] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0029] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A battery cap connection piece blanking punching die head, characterized by: It includes a punch body, in which an elastic ejector mechanism is coaxially arranged. The elastic ejector mechanism is used to press the blind hole area of ​​the battery cap connecting piece. The elastic ejector mechanism can be extended and retracted along the length direction of the punch body. The holding end of the elastic ejector mechanism extends out of the bottom of the punch body, and an annular forming portion is provided at the bottom of the punch body.

2. A battery cap connector blanking and punching die head according to claim 1, characterized in that: A mounting hole is provided through the middle of the punch body, and the mounting hole is a stepped hole. The elastic ejector mechanism includes an ejector arranged in the mounting hole, and a spring is provided in the mounting hole at a position corresponding to the top of the ejector.

3. A battery cap connection piece blanking punching die head according to claim 2, characterized in that: The ejector pin includes a mounting portion and a supporting portion, the mounting hole includes a first hole segment and a second hole segment, the second hole segment is located at the bottom of the punch body, the aperture of the first hole segment is larger than the aperture of the second hole segment, the mounting portion is located in the first hole segment and matches the first hole segment, and the supporting portion is located in the second hole segment and matches the second hole segment.

4. A battery cap connection piece blanking and punching die head according to claim 3, characterized in that: An internal thread is provided on the inner side wall of the top of the second hole section, and an adjusting pressure head is provided at the internal thread. One end of the spring is supported on the adjusting pressure head, and the other end of the spring is supported on the mounting portion of the ejector pin. The supporting pressure of the spring is adjusted by adjusting the screw-in depth of the adjusting pressure head.

5. The battery cap connection piece blanking and punching die head according to claim 3, characterized in that: The cross-sectional size of the supporting portion matches the blind hole area of ​​the battery cap connecting piece.

6. A battery cap connection piece blanking and punching die head according to claim 5, characterized in that: The mounting portion and the supporting portion are integrally formed.

Images