Forming mechanism of battery terminal

Abstract

The utility model provides a forming mechanism of a battery terminal. The forming mechanism comprises a male die assembly, a mounting plate and a plurality of female die assemblies, the male die assembly is used for being connected with the stamping driving end of stamping equipment. The mounting plate is provided with a plurality of mounting cavities and a plurality of abutting grooves, and each abutting groove is arranged along the corresponding mounting cavity. The multiple female die parts are installed in the multiple installation cavities in a one-to-one correspondence mode and comprise the first female die part, the second female die part and the third female die part which are sequentially arranged in the material direction. The first female die piece is provided with a deep drawing cavity and a first protrusion. The second female die piece is provided with a pre-forming cavity and a second protrusion. The third female die piece is provided with a forming cavity and a third protrusion, and a forming step is arranged at the end, away from the third protrusion, of the forming cavity. According to the forming mechanism of the battery terminal, by forming the annular groove in the bottom step by step, the problem of material deformation in the machining process is reduced, and therefore the machining stability and consistency are improved.

Description

Technical Field

[0001] This disclosure relates to the technical field of battery terminal manufacturing, and in particular to a battery terminal forming mechanism. Background Technology

[0002] Battery terminals are a key component of lithium batteries, acting as the interface between the battery and external devices. By connecting wires or connectors to the battery terminals, the battery can provide a stable power supply to external devices.

[0003] like Figure 1 As shown, the battery terminals have stepped structures at the top and bottom. These stepped structures are typically formed using turning equipment. While turning equipment can achieve the desired machining accuracy, it is not suitable for... Figure 1 The annular groove at the bottom of the battery terminal shown in the figure is difficult to process due to its complex geometry and strict requirements for controlling its depth and width. It is prone to deformation or substandard processing accuracy during the processing. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a forming mechanism for battery terminals with high processing accuracy and the ability to avoid deformation.

[0005] The purpose of this disclosure is achieved through the following technical solution:

[0006] A battery terminal forming mechanism for stamping and forming battery terminals, the battery terminal forming mechanism comprising:

[0007] A punch assembly for connecting to the stamping drive end of a stamping equipment;

[0008] The mounting plate is installed below the punch assembly. The mounting plate has multiple mounting cavities and multiple abutment grooves. Each abutment groove is provided along the corresponding mounting cavity and is used to abut against the bottom of the battery terminal.

[0009] Multiple concave molds are installed in multiple mounting cavities in a one-to-one correspondence. The multiple concave molds include a first concave mold, a second concave mold, and a third concave mold arranged sequentially along the material feeding direction.

[0010] The first concave die is installed in the corresponding mounting cavity. The first concave die is provided with a drawing cavity and a first protrusion. The first protrusion is provided along the periphery of the drawing cavity.

[0011] The second concave die is installed in the corresponding mounting cavity. The second concave die is provided with a pre-forming cavity and a second protrusion. The second protrusion is provided along the periphery of the pre-forming cavity. The width of the pre-forming cavity is greater than the width of the drawing cavity.

[0012] The third concave mold is installed in the corresponding mounting cavity. The third concave mold has a forming cavity and a third protrusion. The third protrusion is arranged along the forming cavity. A forming step is provided at the end of the forming cavity away from the third protrusion. The width of the third protrusion is smaller than the width of the second protrusion.

[0013] In one embodiment, the first concave mold member has an insert at the end away from the first protrusion, the second concave mold member has the insert at the end away from the second protrusion, and the third concave mold member has the insert at the end away from the third protrusion.

[0014] In one embodiment, a fixing block is provided at the end of the first concave mold member away from the first protrusion, the fixing block is provided at the end of the second concave mold member away from the second protrusion, the fixing block is provided at the end of the third concave mold member away from the third protrusion, and a fixing groove is provided at the end of each mounting cavity away from the punch assembly, and each fixing block abuts against the corresponding fixing groove.

[0015] In one embodiment, the preformed cavity has a margin portion at the end away from the second protrusion, and the cross-section of the margin portion is trapezoidal.

[0016] In one embodiment, the cross-sections of the first protrusion, the second protrusion, and the third protrusion are all rounded rectangles.

[0017] In one embodiment, the first concave mold, the first protrusion and the corresponding mounting cavity are formed with a first flange forming groove, the second concave mold, the second protrusion and the corresponding mounting cavity are formed with a second flange forming groove, and the third concave mold and the third protrusion and the corresponding mounting cavity are formed with a third flange forming groove.

[0018] In one embodiment, the battery terminal forming mechanism further includes a bottom forming component, the bottom forming component including a second mounting plate, the second mounting plate being disposed on the side of the mounting plate near the first concave mold, the second mounting plate having two mounting cavities and two bottom forming grooves, each bottom forming groove being disposed along the periphery of the corresponding mounting cavity.

[0019] In one embodiment, the bottom molding assembly further includes a second insert, which is installed in the mounting cavity, and the second insert and the corresponding inner wall of the mounting cavity together form a cavity.

[0020] Compared with the prior art, this disclosure has at least the following advantages:

[0021] 1. The battery terminal forming mechanism reduces material deformation during processing by forming the bottom annular groove in stages, thereby improving the stability and consistency of processing.

[0022] 2. The battery terminal forming mechanism processes and forms the battery terminal through the first concave mold, the second concave mold, and the third concave mold. This allows for better control of the depth and width of the bottom groove of the battery terminal, ensuring that its geometry meets strict design requirements and thus improving the processing accuracy of the finished product. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a battery terminal structure;

[0025] Figure 2 This is a schematic diagram of a battery terminal forming mechanism.

[0026] Figure 3 for Figure 2 A cross-sectional view of the battery terminal forming mechanism shown;

[0027] Figure 4 for Figure 2 A schematic diagram of the structure of the third concave mold of the battery terminal forming mechanism shown;

[0028] Figure 5 for Figure 2 A cross-sectional view of the third concave mold of the battery terminal forming mechanism shown;

[0029] Figure 6 for Figure 2 A schematic diagram of the structure of the second mounting plate of the battery terminal forming mechanism shown. Detailed Implementation

[0030] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0034] Please see Figures 1 to 6 The battery terminal forming mechanism 10, according to an embodiment of the present invention, includes: a punch assembly (not shown), a mounting plate 100, and multiple die parts. The punch assembly is used to connect to the stamping drive end of a stamping equipment. The mounting plate 100 is installed below the punch assembly and has multiple mounting cavities (not shown) and multiple abutment grooves 102. Each abutment groove 102 is provided along the corresponding mounting cavity and is used to abut the bottom of the battery terminal. The multiple die parts are installed one-to-one in the multiple mounting cavities. The multiple die parts include a first die part 200, a second die part 300, and a third die part 400 arranged sequentially along the material direction. The first die part 200 is provided with a drawing cavity 201 and a first protrusion 210, which is provided along the periphery of the drawing cavity 201. The second die 300 is provided with a pre-forming cavity 301 and a second protrusion 310. The second protrusion 310 is disposed along the periphery of the pre-forming cavity 301, and the width of the pre-forming cavity 301 is greater than the width of the drawing cavity 201. The third die 400 is provided with a forming cavity 401 and a third protrusion 410. The third protrusion 410 is disposed along the forming cavity 401, and a forming step 4011 is provided at the end of the forming cavity 401 away from the third protrusion 410. The width of the third protrusion 410 is less than the width of the second protrusion 310.

[0035] In this embodiment, the battery terminal forming mechanism 10 reduces material deformation during processing by forming the bottom annular groove in stages, thereby improving processing stability and consistency. Furthermore, the battery terminal forming mechanism 10 processes the battery terminal using a first concave mold 200, a second concave mold 300, and a third concave mold 400, which allows for better control of the depth and width of the bottom groove of the battery terminal, ensuring its geometry meets stringent design requirements and thus improving the processing accuracy of the finished product.

[0036] like Figures 2 to 5 As shown, in one embodiment, a block 500 is provided at the end of the first die 200 away from the first protrusion 210, a block 500 is provided at the end of the second die 300 away from the second protrusion 310, and a block 500 is provided at the end of the third die 400 away from the third protrusion 410. Specifically, in this embodiment, the block 500 is embedded inside each die, which can effectively disperse wear during the molding process, thereby extending its service life. At the same time, the close contact between the top of the block 500 and the inner wall of the die improves the accuracy of the bottom of the molding cavity 401 of each die and the product quality.

[0037] like Figure 4 and Figure 5 As shown, in one embodiment, a fixing block 600 is provided at the end of the first die 200 away from the first protrusion 210, a fixing block 600 is provided at the end of the second die 300 away from the second protrusion 310, and a fixing block 600 is provided at the end of the third die 400 away from the third protrusion 410. Each mounting cavity has a fixing groove (not shown) at the end away from the punch assembly, and each fixing block 600 abuts against the corresponding fixing groove. It can be understood that each die, through the abutting cooperation between the fixing block 600 and the fixing groove, ensures that the die is accurately installed in the corresponding mounting cavity and abuts against the inner wall of the mounting cavity. The fixing groove restricts the movement of the fixing block, preventing the die from moving during the stamping process and ensuring the forming accuracy of the battery terminals.

[0038] like Figure 3 As shown, in one embodiment, the preforming cavity 301 has a allowance portion 3011 at the end away from the second protrusion 310, and the cross-section of the allowance portion 3011 is trapezoidal. It can be understood that the trapezoidal allowance portion 3011 effectively disperses the stress during the stamping process, while leaving sufficient allowance for the subsequent stepped forming process to avoid defects during the forming process.

[0039] like Figure 3As shown, in one embodiment, the first protrusion 210, the second protrusion 310, and the third protrusion 410 all have rounded rectangular cross-sections. These protrusions are used to form an annular groove at the bottom of the battery terminal. It is understood that integrating the annular groove forming structure onto the die allows for maintaining the forming accuracy of the annular groove by replacing the die, simplifying maintenance procedures and ensuring the consistency and stability of the annular groove forming. Simultaneously, the rounded rectangular structure simplifies subsequent processing steps and evenly distributes stress during the forming process, avoiding potential material deformation and defects, and improving product quality.

[0040] Furthermore, during the stamping process, the annular groove of the battery terminal is initially formed by the first protrusion 210. The second protrusion 310 and the third protrusion 410 abut against the initially formed annular groove during the stamping process, making the positioning of the battery terminal in the second concave die 300 and the third concave die 400 more accurate, thereby improving the processing accuracy and ensuring that the product size meets expectations.

[0041] like Figure 2 and Figure 3 As shown, in one embodiment, the first concave mold 200, the first protrusion 210, and the corresponding mounting cavity form a first flange forming groove 202; the second concave mold 300, the second protrusion 310, and the corresponding mounting cavity form a second flange forming groove 302; and the third concave mold 400, the third protrusion 410, and the corresponding mounting cavity form a third flange forming groove 402. It can be understood that the three flange forming grooves are used to progressively form the annular groove wall at the bottom of the battery terminal, and the thickness of each forming groove wall is equal to the distance from the protrusion of the corresponding concave mold to its periphery. Specifically, after the groove wall is initially formed, it will tightly abut against the protrusion on the corresponding concave mold in subsequent processes to ensure accurate workpiece positioning, thereby improving the forming accuracy of the annular groove of the battery terminal and preventing deformation of the annular groove due to misalignment.

[0042] like Figure 6 As shown, in one embodiment, the battery terminal forming mechanism 10 further includes a bottom forming component 700. The bottom forming component 700 includes a second mounting plate 710, which is disposed on the side of the mounting plate 100 near the first concave mold 200. The second mounting plate 710 has two mounting cavities and two bottom forming grooves 7101. Each bottom forming groove 7101 is disposed along the periphery of the corresponding mounting cavity and is used to form the bottom structure of the battery terminal. Specifically, in this embodiment, each bottom forming groove 7101 corresponds to a forming area of ​​a battery terminal, satisfying the specific requirements of the shape and structure of each terminal, ensuring that the size and shape of each battery terminal are consistent during each forming, and improving the consistency and precision of the product.

[0043] like Figure 6 As shown, in one embodiment, the bottom concave mold assembly further includes a second insert (not shown), which is installed in the mounting cavity. The second insert and the corresponding inner wall of the mounting cavity together form a cavity 7102. It is understood that the cavity 7102 allows for the initial deep drawing to form the column of the battery terminal, providing positioning for subsequent processes. This ensures accurate alignment of the battery terminal during subsequent processing, reduces the risk of misalignment, and improves the forming accuracy of the annular groove at the bottom of the battery terminal.

[0044] Compared with the prior art, this disclosure has at least the following advantages:

[0045] 1. The battery terminal forming mechanism reduces material deformation during processing by forming the bottom annular groove in stages, thereby improving the stability and consistency of processing.

[0046] 2. The battery terminal forming mechanism processes and forms the battery terminal through the first concave mold, the second concave mold, and the third concave mold. This allows for better control of the depth and width of the bottom groove of the battery terminal, ensuring that its geometry meets strict design requirements and thus improving the processing accuracy of the finished product.

[0047] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A battery terminal forming mechanism for stamping battery terminals, characterized in that, The battery terminal forming mechanism includes: A punch assembly for connecting to the stamping drive end of a stamping equipment; The mounting plate is installed below the punch assembly. The mounting plate has multiple mounting cavities and multiple abutment grooves. Each abutment groove is provided along the corresponding mounting cavity and is used to abut against the bottom of the battery terminal. Multiple concave molds are installed in multiple mounting cavities in a one-to-one correspondence. The multiple concave molds include a first concave mold, a second concave mold, and a third concave mold arranged sequentially along the material feeding direction. The first die is provided with a drawing cavity and a first protrusion, and the first protrusion is provided along the periphery of the drawing cavity; The second die is provided with a pre-forming cavity and a second protrusion. The second protrusion is provided along the periphery of the pre-forming cavity, and the width of the pre-forming cavity is greater than the width of the drawing cavity. The third concave mold is provided with a molding cavity and a third protrusion. The third protrusion is provided along the molding cavity. A molding step is provided at the end of the molding cavity away from the third protrusion. The width of the third protrusion is smaller than the width of the second protrusion.

2. The battery terminal forming mechanism according to claim 1, characterized in that, The first concave mold has an insert at the end away from the first protrusion, the second concave mold has the insert at the end away from the second protrusion, and the third concave mold has the insert at the end away from the third protrusion.

3. The battery terminal forming mechanism according to claim 1, characterized in that, A fixing block is provided at the end of the first concave mold member away from the first protrusion, a fixing block is provided at the end of the second concave mold member away from the second protrusion, a fixing block is provided at the end of the third concave mold member away from the third protrusion, and a fixing groove is provided at the end of each mounting cavity away from the punch assembly, and each fixing block abuts against the corresponding fixing groove.

4. The battery terminal forming mechanism according to claim 1, characterized in that, The preformed cavity has a margin portion at the end away from the second protrusion, and the cross-section of the margin portion is trapezoidal.

5. The battery terminal forming mechanism according to claim 1, characterized in that, The cross-sections of the first protrusion, the second protrusion, and the third protrusion are all rounded rectangles.

6. The battery terminal forming mechanism according to claim 1, characterized in that, The first concave mold, the first protrusion and the corresponding mounting cavity form a first flange forming groove, the second concave mold, the second protrusion and the corresponding mounting cavity form a second flange forming groove, and the third concave mold and the third protrusion and the corresponding mounting cavity form a third flange forming groove.

7. The battery terminal forming mechanism according to claim 1, characterized in that, The battery terminal forming mechanism further includes a bottom forming component, which includes a second mounting plate. The second mounting plate is disposed on the side of the mounting plate close to the first concave mold. The second mounting plate has two mounting cavities and two bottom forming grooves, and each bottom forming groove is disposed along the periphery of the corresponding mounting cavity.

8. The battery terminal forming mechanism according to claim 7, characterized in that, The bottom molding component further includes a second insert, which is installed in the mounting cavity, and the second insert and the corresponding inner wall of the mounting cavity together form a cavity.

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