Terminal production stamping die and terminal production equipment

Abstract

The utility model provides a terminal production stamping die and terminal production equipment. The terminal production stamping die comprises an upper die body and a lower die body, the upper die body is sequentially provided with a plurality of punch assemblies in the material conveying direction, the lower die body is provided with a plurality of stamping groove assemblies, and the multiple stamping groove assemblies and the multiple punch assemblies are arranged in a one-to-one correspondence mode. The multiple punch assemblies comprise a plurality of pre-pressing punch assemblies, forming punching assemblies and punching assemblies which are sequentially arranged in the material conveying direction, the multiple punching groove assemblies comprise a plurality of pre-pressing punching grooves, forming punching grooves and punching grooves, each pre-pressing punch and the corresponding pre-pressing groove form a pre-pressing molded edge, a pre-pressing mold cavity is defined by the pre-pressing molded edges, and the pre-pressing mold cavity is communicated with the pre-pressing punch assemblies. A pre-pressing part is formed when the materials are conveyed to the position, corresponding to the forming stamping groove and the forming stamping head, of the forming stamping groove, the forming stamping head is used for stamping the pre-pressing part together with the forming stamping groove, and the stamping head is provided with a profiling cutter. The terminal production equipment comprises a feeding device and a stamping die.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electrode terminal production, and in particular to a terminal production stamping die and terminal production equipment. Background Art

[0002] Terminals are the parts that connect electrode devices to circuit boards or other devices, usually in the form of pins, pads, etc. Terminals need to have good conductivity and stability to ensure normal connection between electrodes and other electronic devices.

[0003] Currently, terminal production relies primarily on CNC machine tools, but this process has drawbacks, resulting in low yield rates. In contrast, stamping significantly improves production efficiency and yield rates thanks to its high speed, high repeatability, and excellent product consistency and precision. However, the multiple forming cycles of the die during the stamping process can cause deformation of the hole position and shape due to stress changes, or damage the hole end face, thus affecting overall quality. Utility Model Content

[0004] The purpose of the present disclosure is to overcome the deficiencies in the prior art and to provide a terminal production stamping die and terminal production equipment that can prevent hole deformation during the stamping process.

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

[0006] A terminal production stamping die for stamping and forming electrode terminals includes: an upper die and a lower die, the upper die is provided with multiple punch assemblies in sequence along the material transportation direction, the lower die is provided with multiple stamping groove assemblies, and the multiple stamping groove assemblies are arranged in a one-to-one correspondence with the multiple punch assemblies.

[0007] The plurality of punch assemblies include a plurality of pre-stressing punch assemblies, forming punch assemblies and punching assemblies arranged in sequence along the material conveying direction; the plurality of punching groove assemblies include a plurality of pre-stressing punching grooves, forming punching grooves and punching grooves; each of the pre-stressing punching grooves is arranged corresponding to the pre-stressing punch of the corresponding pre-stressing punch assembly; the forming punching groove is arranged corresponding to the forming punching head of the forming punching assembly; the punching head of the punching assembly is arranged corresponding to the punching groove; each of the pre-stressing punches and the corresponding pre-stressing grooves is formed with a pre-stressing edge, and the pre-stressing edge is surrounded by a pre-stressing cavity, so that a pre-stressing portion is formed when the material is transported to the position corresponding to the forming punching groove and the forming punching head; the forming punching head is used to punch the pre-stressing portion together with the forming punching groove; and the punching head is provided with a profiling knife.

[0008] In one embodiment, the profiling knife is in the shape of a frustum.

[0009] In one embodiment, the pre-pressing punch is an arc-shaped rectangular structure and is provided with a margin groove.

[0010] In one embodiment, the end surface of the punch assembly and the end surface of the stamping groove assembly are both arc rectangles.

[0011] In one embodiment, the terminal production stamping die is further provided with a plurality of avoidance areas.

[0012] In one embodiment, the terminal production stamping die further includes a material guide plate, and the material guide plate is arranged at one end where the material enters the terminal production stamping die.

[0013] In one embodiment, the terminal production stamping die is provided with an upper cover plate, and the upper cover plate is located above the upper die.

[0014] A terminal production device comprises a feeding device and the terminal production stamping die described in any one of the above embodiments.

[0015] Compared with the prior art, the present disclosure has at least the following advantages:

[0016] A pre-stressing stamping process is implemented to create a pre-stressed portion, which serves as an allowance for the forming stamping process, reducing stress concentration and preventing deformation. Simultaneously, a profiling knife is attached to the forming stamping head, integrating the end face structural processing with the terminal forming process. The pre-stressing portion provides the necessary allowance for the profiling knife, preventing end face collapse or structural damage during processing. Furthermore, the use of a continuous stamping process further simplifies the processing steps and significantly shortens the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic structural diagram of a terminal production stamping die according to an embodiment;

[0019] Figure 2 for Figure 1 The schematic diagram of the stamping position structure of the terminal production stamping die is shown;

[0020] Figure 3 for Figure 1 The schematic diagram of the structure of the pre-pressing punch head of the terminal production stamping die shown;

[0021] Figure 4 for Figure 1 The schematic diagram of the structure of the forming punch head of the terminal production stamping die shown;

[0022] Figure 5 for Figure 1 The schematic diagram of the structure of the guide plate of the terminal production stamping die shown;

[0023] Figure 6 for Figure 1 Actual photo of the terminal strip used in the terminal production stamping die shown. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present 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 comprehensive understanding of the disclosure.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0028] See also Figures 1 to 6, which is a terminal production stamping die 10 of an embodiment of the present invention, includes an upper die 100 and a lower die 200. The upper die 100 is provided with a plurality of punch assemblies 110 sequentially arranged along the material conveying direction, and the lower die 200 is provided with a plurality of stamping groove assemblies 120. The plurality of stamping groove assemblies 120 are arranged in a one-to-one correspondence with the plurality of punch assemblies 110. The plurality of punch assemblies 110 include a plurality of pre-stressing punch assemblies 111, a forming punching assembly 112 and a punching assembly (not shown) sequentially arranged along the material conveying direction. The plurality of stamping groove assemblies 120 include a plurality of pre-stressing punching grooves 121, a forming punching groove 122 and a punching groove (not shown). Each pre-stressing punching groove 121 is arranged corresponding to the pre-stressing punch 111a of the corresponding pre-stressing punch assembly 111, and the forming punching groove 122 is arranged corresponding to the forming punch 112a of the forming punch assembly 112. The punching head (not shown) of the punching assembly is arranged corresponding to the punching groove. Each pre-pressing punch 111a and the corresponding pre-pressing groove 120 are formed with a pre-pressing edge (not shown), and the pre-pressing edge is surrounded by a pre-pressing cavity (not shown). When the material is transported to the position corresponding to the forming punching groove 122 and the forming punching head 112a, a pre-pressing portion (not shown) is formed. The forming punching head 112a is used to punch the pre-pressing portion together with the forming punching groove 122, and a profiling knife 112b is provided on the forming punching head 112a.

[0029] In this embodiment, a pre-stressing stamping process is provided to form a pre-stressed portion, which serves as an allowance for the forming stamping process, thereby reducing stress concentration and preventing deformation. Simultaneously, a profiling blade 112b is attached to the forming punch 112a, integrating the end face structural processing with the terminal forming process. The pre-stressed portion provides the necessary allowance for the profiling blade 112b, thus preventing end face collapse or structural damage during processing. Furthermore, the use of a continuous stamping process further simplifies the processing steps and significantly shortens the production cycle.

[0030] like Figure 4 As shown, in one embodiment, the profiling blade 112b is truncated. Specifically, in this embodiment, a tapered hole with a depth of 0.5mm is required to be machined into the end face of the terminal. The profiling blade 112b has a length of 0.6mm. This creates an interference fit, ensuring that the shape and depth of the tapered hole in the terminal end face meet the requirements of the drawing. Furthermore, the preset interference fit can offset the effects of wear, maintain long-term accuracy, and improve production yields.

[0031] Furthermore, the slightly higher profiling blade 112b can provide greater impact force during stamping, which helps to better shape the material, reduce defects in the stamping process, and improve quality.

[0032] like Figure 3As shown, in one embodiment, the working surface of the pre-pressing punch 111a is an arc-shaped rectangular structure. Specifically, in this embodiment, the working end surface of the pre-pressing punch 111a is an inwardly concave arc. This forms a pre-pressed portion on the end surface of the material during the stamping process, providing an appropriate margin for subsequent steps. This prevents damage to the end surface caused by peripheral collapse or deformation when the profiling blade 112b stamps the tapered hole on the end surface.

[0033] It should be noted that the pre-pressed portion gradually decreases as the process steps progress, to ensure adaptability and accuracy at different processing stages.

[0034] like Figure 2 and Figure 4 As shown, in one embodiment, the end face of the punch assembly 110 and the end face of the stamped groove assembly 120 are both arc-shaped rectangles. Specifically, in this embodiment, the end face of the produced terminal is an arc-shaped rectangle. The end face of each punch assembly 110 and the end face of each stamped groove assembly 120 are both arc-shaped rectangles. This can improve the matching accuracy of the stamping process and reduce errors. At the same time, the arc-shaped rectangular structure can evenly distribute the punching force generated during stamping, reduce stress concentration, and improve the strength and stability of the finished product.

[0035] like Figure 1 and Figure 2 As shown, in one embodiment, the terminal production stamping die is further provided with a plurality of avoidance zones 130. Specifically, in this embodiment, each avoidance zone 130 includes an adjustable idle step, which can be adjusted or added according to production needs, providing more adaptability for subsequent die improvements or product upgrades.

[0036] Furthermore, there are two avoidance zones 130 , wherein one avoidance zone 130 is provided between the auxiliary structure stamping process and the pre-pressing process, and the other avoidance zone 130 is provided between the forming stamping process and the blanking process.

[0037] like Figure 5 As shown, in one embodiment, the terminal production stamping die further includes a guide plate 400, which is disposed at one end where the material enters the terminal production stamping die. It will be appreciated that the guide plate 400 guides the material into the die and ensures its accurate positioning, preventing equipment failures caused by material slippage or misalignment, thereby improving production efficiency and product quality.

[0038] like Figure 1 As shown in one embodiment, the terminal production stamping die 10 is provided with an upper cover plate 300. The upper cover plate 300 is located above the upper die 100 and is fixed to the machine tool via screws to ensure the stability of the connection between the upper cover plate 300 and the machine tool. It can be understood that the upper cover plate 300 can compensate for the travel of the machine tool, thereby improving the adaptability of the die.

[0039] The present application also provides a terminal production device, comprising a feeding device and the terminal production stamping die 10 described in any of the above-mentioned embodiments. It is understood that the feeding device and the guide plate of the terminal production stamping die 10 transport the strip material into the terminal production stamping die 10 and move it forward according to the process steps, thereby achieving automation of terminal production, improving production efficiency, reducing manual intervention, and enhancing production safety. Furthermore, the terminal production stamping die 10 prevents the terminal end face from being dented during the stamping process, thereby improving the processing quality of the terminal end face.

[0040] Compared with the prior art, the present disclosure has at least the following advantages:

[0041] A pre-stressing stamping process is implemented to create a pre-stressed portion, which serves as an allowance for the forming stamping process, reducing stress concentration and preventing deformation. Simultaneously, a profiling knife is attached to the forming stamping head, integrating the end face structural processing with the terminal forming process. The pre-stressing portion provides the necessary allowance for the profiling knife, preventing end face collapse or structural damage during processing. Furthermore, the use of a continuous stamping process further simplifies the processing steps and significantly shortens the production cycle.

[0042] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the disclosed patent shall be determined by the appended claims.

Claims

1. A terminal production stamping die for producing electrode terminals, comprising: The upper die and the lower die are provided with a plurality of punch assemblies in sequence along the material transport direction, and the lower die is provided with a plurality of stamping groove assemblies, and the plurality of stamping groove assemblies are provided in a one-to-one correspondence with the plurality of punch assemblies, characterized in that: The plurality of punch assemblies include a plurality of pre-stressing punch assemblies, forming punch assemblies and punching assemblies arranged in sequence along the material conveying direction; the plurality of punching groove assemblies include a plurality of pre-stressing punching grooves, forming punching grooves and punching grooves; each of the pre-stressing punching grooves is arranged corresponding to the pre-stressing punch of the corresponding pre-stressing punch assembly; the forming punching groove is arranged corresponding to the forming punching head of the forming punching assembly; the punching head of the punching assembly is arranged corresponding to the punching groove; each of the pre-stressing punches and the corresponding pre-stressing grooves is formed with a pre-stressing edge, and the pre-stressing edge is surrounded by a pre-stressing cavity, so that a pre-stressing portion is formed when the material is transported to the position corresponding to the forming punching groove and the forming punching head; the forming punching head is used to punch the pre-stressing portion together with the forming punching groove; and the punching head is provided with a profiling knife.

2. The terminal production stamping die according to claim 1, characterized in that: The profiling knife is in the shape of a frustum.

3. The terminal production stamping die according to claim 1, characterized in that: The working surface of the pre-pressing punch is an arc rectangular structure.

4. The terminal production stamping die according to claim 1, characterized in that: The end face of the punch assembly and the end face of the stamping groove assembly are both arc rectangles.

5. The terminal production stamping die according to claim 1, characterized in that: The terminal production stamping die is also provided with a plurality of avoidance areas.

6. The terminal production stamping die according to claim 1, characterized in that: The terminal production stamping die further includes a material guide plate, which is arranged at one end where the material enters the terminal production stamping die.

7. The terminal production stamping die according to claim 1, characterized in that: The terminal production stamping die is provided with an upper cover plate, and the upper cover plate is located above the upper die.

8. A terminal production equipment, characterized in that, include: A feeding device and a terminal production stamping die according to any one of claims 1 to 7.

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