Continuous stamping die for producing precise contact terminal of M.2 connector

Abstract

The utility model provides a continuous stamping die for producing a precise contact terminal of an M.2 connector, which belongs to the technical field of stamping dies and comprises an upper die part and a lower die part. The upper die part comprises an upper die base, an upper backing plate and an upper clamping plate which are connected with the upper die base, and a stop plate and a stripper plate which are connected with each other; the male die assemblies and the female die assemblies comprise a plurality of progressive steps arranged in the length direction of the stamping die, and the two male die assemblies and the two female die assemblies are arranged in the width direction of the stamping die. According to the continuous stamping die for producing the precise contact terminal of the M.2 connector, one set of continuous precise die is used for completing the production of one copper strip, two copper strips and eight parts, so that the effect of efficiently producing the product is achieved. A plurality of complex bending processes such as trimming, fine cutting, half cutting, blanking, puncturing, pre-bending, forming and adjusting are completed at the same time, part production is directly completed through a set of continuous precision die, the machining speed is high, the part precision is high, and the productivity is high.

Description

Technical Field

[0001] This invention belongs to the field of stamping die technology, specifically relating to a continuous stamping die for producing precision contact terminals of M.2 connectors. Background Technology

[0002] A stamping die is a tool used for stamping processes on a stamping press. It is a specialized tool for processing metal or non-metal materials into desired shapes and sizes. An M.2 connector is an internal interface primarily used to connect computer motherboards and expansion cards; it is small in size and offers high data transfer speeds.

[0003] In existing technologies, stamping dies are typically used to process the contact terminals of M.2 connectors. The manufacturing of precision contact terminals for M.2 connectors involves a single copper strip entering and exiting, producing one part per stamping cycle. This process includes steps such as trimming, precision cutting, pre-bending, forming, adjustment, and multiple complex bending processes. These stamping processes require significant time and equipment to achieve production capacity, wasting substantial human resources and increasing overall prototyping time. This hinders rapid mass production, leading to high production costs, extended product lead times, reduced production efficiency, and lower equipment utilization. Utility Model Content

[0004] The purpose of this utility model is to provide a continuous stamping die for producing precision contact terminals of M.2 connectors, including an upper die part and a lower die part; the upper die part includes an upper die base, an upper pad plate and an upper clamping plate connected to the upper die base, and a stop plate and a stripper plate connected to each other; the lower die part includes a lower die base, a lower pad plate and a lower template plate connected to the lower die base; the stamping die also includes mutually cooperating outer guide pillars and outer guide sleeves, as well as inner guide pillars and inner guide sleeves; the outer guide pillars are fixed on the lower die base, and the outer guide sleeves are disposed on the upper die base, and the upper die part and the lower die part are positioned and guided by the outer guide pillars and outer guide sleeves; the upper clamping plate, the stripper plate and the lower template plate are guided and cooperated by the inner guide pillars and inner guide sleeves.

[0005] A punch assembly is connected to the upper clamping plate, and a die assembly is connected to the lower template. The punch and die assemblies correspond in shape and position and are used to produce precision contact terminals for M.2 connectors. The punch and die assemblies include multiple progressive steps arranged along the length of the stamping die. Two sets of punch and die assemblies are arranged in the width direction of the stamping die, namely, A-band punch assembly, A-band die assembly, B-band punch assembly, and B-band die assembly. A strip of material is input at the feeding end of the stamping die, and the strip includes an A-band area and a B-band area. The A-band punch assembly and A-band die assembly are used to process the A-band area; the B-band punch assembly and B-band die assembly are used to process the B-band area.

[0006] Preferably, the plurality of progressive steps include a breakage step, an edge trimming step, a blanking step, a round hole step, a spring forming step, a solder lead forming step, a protective lead forming step, and a high / low pin adjustment step.

[0007] The breakage step, trimming step, blanking step, round hole step, and high / low pin adjustment step each include a punch connected to the upper clamping plate and a die connected to the lower template. The breakage step, trimming step, blanking step, round hole step, and high / low pin adjustment step are used to complete the product's breakage, trimming, blanking, round hole cutting, and high / low pin adjustment processes, respectively.

[0008] The forming of the spring, the forming of the solder pad, and the forming of the protective pin each include multiple steps to complete the forming process of the spring, the solder pad, and the protective pin.

[0009] Preferably, the spring forming includes a spring puncture step, a spring blanking step, a spring head cutting step, a spring head forming step, a spring head shaping step, a spring position adjustment step, and a spring height adjustment step.

[0010] The spring puncture step, spring blanking step, spring head cutting step, spring head forming step, spring head shaping step, spring position adjustment step, and spring height adjustment step are respectively used to complete the spring puncture, blanking, cutting the head outline shape, head shape forming, head shape shaping, position adjustment, and height adjustment processes.

[0011] Preferably, the solder lead forming includes step A (solder lead piercing), step B (solder lead piercing), step C (solder lead pre-bending), step D (solder lead forming), step D (solder lead position adjustment), and step D (solder lead angle adjustment).

[0012] The steps for piercing solder feet in the A-band area, piercing solder feet in the B-band area, pre-bending solder feet, forming solder feet, adjusting solder feet position, and adjusting solder feet angle are respectively used for piercing solder feet in the A-band area, piercing solder feet in the B-band area, pre-bending solder feet, forming solder feet, adjusting solder feet position, and adjusting solder feet angle.

[0013] Preferably, the protective foot forming includes a protective foot puncture step, a protective foot forming step, and a protective foot adjustment step;

[0014] The protective foot piercing step, protective foot forming step, and protective foot adjustment step are respectively used for piercing the protective foot, forming the protective foot, and adjusting the shape and position of the protective foot.

[0015] Preferably, in the plurality of progressive steps, each step processes four consecutive parts on the strip.

[0016] Preferably, the stop plate is connected to a positioning pin, and the strip is provided with a positioning hole; the positioning pin is used to cooperate with the positioning hole to realize the positioning of the strip with the punch assembly and the die assembly.

[0017] Preferably, the lower mold base is provided with a floating pin, which is used to detach the strip from the surface of the mold so as to move the strip to the next step.

[0018] Preferably, the strip used in the stamping die is C19910-TM08 copper material with a blank thickness of 0.12mm.

[0019] As described above, the beneficial technical effects of the continuous stamping die for producing precision contact terminals of M.2 connectors according to this utility model are as follows:

[0020] Continuous stamping dies are used to directly produce precision contact terminals for M.2 connectors. A single set of continuous precision dies completes the production of eight parts from one copper strip input to two copper strips output, achieving high-efficiency production. Simultaneously, it completes multiple complex bending processes such as edge trimming, precision cutting, partial cutting, blanking, puncturing, pre-bending, forming, and adjustment. All parts are produced directly from a single set of continuous precision dies, resulting in high processing speed, high part precision, and high production capacity. Attached Figure Description

[0021] The present invention will be more fully understood through the following detailed description and in conjunction with the accompanying drawings, wherein similar elements are numbered in a similar manner, wherein:

[0022] Figure 1 This is a schematic diagram of a continuous stamping die according to an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the continuous stamping die process according to an embodiment of the present utility model;

[0024] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 4 yes Figure 2 A magnified view of a section at point B in the middle;

[0026] Figure 5 yes Figure 2 A magnified view of a section at point C;

[0027] Figure 6 yes Figure 2 A magnified view of a section at point D;

[0028] Figure 7 yes Figure 2 A magnified view of a section at point E in the middle;

[0029] In the diagram: 1. Upper mold base; 2. Upper backing plate; 3. Upper clamping plate; 4. Stop plate; 5. Stripper plate; 6. Lower mold plate; 7. Lower mold base; 8. Fixing block; 9. Outer guide post; 10. Outer guide sleeve; 11. Inner guide post; 12. Inner guide sleeve; 13. Positioning pin; 14. Floating pin; 15. Easy breakage step S1; Edge trimming step S2; Blanking step S3; Spring puncture step S4; Spring blanking step S5; B-band solder lead puncture step S6; A-band round hole blanking step S7; B-band round hole blanking step S8; A-band... Solder foot piercing step S9, solder foot pre-bending step S10, solder foot forming step S11, solder foot position adjustment step S12, solder foot angle adjustment step S13, cutting spring head step S14, spring head forming step S15, spring head shaping step S16, spring position adjustment step S17, spring height adjustment step S18, protective foot piercing step S19, protective foot forming step S20, protective foot adjustment step S21, high and low PIN adjustment step S22. Detailed Implementation

[0030] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings, but this utility model is not limited to the following embodiments.

[0031] A stamping die is a tool used for stamping processes on a stamping press. It is a specialized tool for processing metal or non-metal materials into desired shapes and sizes. An M.2 connector is an internal interface primarily used to connect computer motherboards and expansion cards; it is small in size and offers high data transfer speeds.

[0032] In existing technologies, stamping dies are typically used to process the contact terminals of M.2 connectors. The manufacturing of precision contact terminals for M.2 connectors involves a single copper strip entering and exiting, producing one part per stamping cycle. This process includes steps such as trimming, precision cutting, pre-bending, forming, adjustment, and multiple complex bending processes. These stamping processes require significant time and equipment to achieve production capacity, wasting substantial human resources and increasing overall prototyping time. This hinders rapid mass production, leading to high production costs, extended product lead times, reduced production efficiency, and lower equipment utilization.

[0033] To address the aforementioned problems, this utility model provides a continuous stamping die for producing precision contact terminals of M.2 connectors, comprising an upper die portion and a lower die portion; the upper die portion includes an upper die base 1, an upper pad plate 2 and an upper clamping plate 3 connected to the upper die base 1, and a stop plate 4 and a stripper plate 5 connected to each other; the lower die portion includes a lower die base 8, a lower pad plate 7 and a lower template plate 6 connected to the lower die base 8; the stamping die also includes mutually cooperating outer guide posts 10 and outer guide sleeves 11, as well as inner guide posts 12 and inner guide sleeves 13; the outer guide posts 10 are fixed on the lower die base 8, and the outer guide sleeves 11 are disposed on the upper die base 1; the upper die portion and the lower die portion are positioned and guided by the outer guide posts 10 and outer guide sleeves 11; the upper clamping plate 3, the stripper plate 5, and the lower template plate 6 are guided and cooperated by the inner guide posts 12 and inner guide sleeves 13.

[0034] The upper clamping plate 3 is connected to a punch assembly, and the lower template 6 is connected to a die assembly. The punch assembly and die assembly correspond in shape and position and are used to produce precision contact terminals for M.2 connectors. The punch assembly and die assembly include multiple progressive steps arranged along the length direction of the stamping die. Two sets of punch assemblies and die assemblies are arranged in the width direction of the stamping die, namely, A-band punch assembly, A-band die assembly, B-band punch assembly, and B-band die assembly. A strip of material is input at the feeding end of the stamping die. The strip of material includes an A-band area and a B-band area. The A-band punch assembly and A-band die assembly are used to process the A-band area. The B-band punch assembly and B-band die assembly are used to process the B-band area.

[0035] like Figure 1 As shown, this embodiment of the continuous stamping die design for producing precision contact terminals of M.2 connectors includes a continuous progressive die that encompasses all processing steps in the manufacturing of precision contact terminals for M.2 connectors. A single die enables efficient production of precision terminals. Furthermore, it achieves the function of producing two copper strip terminals (eight parts) from one copper strip input using a single die. It incorporates multiple complex bending processes such as edge trimming, precision cutting, partial cutting, blanking, puncturing, pre-bending, forming, and adjustment, ensuring the product's shape and dimensions are accurate. This saves costs and improves production efficiency and equipment utilization.

[0036] In practice, a strip of material includes a region A and a region B. The A-strip punch assembly and the A-strip die assembly are used to process the A-strip region; the B-strip punch assembly and the B-strip die assembly are used to process the B-strip region. The A-strip punch assembly and the A-strip die assembly are used for the same processing as the B-strip punch assembly and the B-strip die assembly, but the processing steps can be the same or different.

[0037] The overall structure of the mold is as follows Figure 1As shown, the upper pad 2 is fixed on the upper clamping plate 3, and the upper clamping plate 3 and the upper pad 2 are together fixed on the upper mold base 1. The stop plate is fixed on the stripper plate 5, and the lower pad 7 is fixed on the lower template 6 and then together fixed on the lower mold base 8. The outer guide post 10 is fixed on the lower mold base 8 by the fixing block 9. The upper and lower molds are positioned and guided by the outer guide post 10 and the outer guide sleeve 11. The upper clamping plate 3, the stripper plate 5, and the lower template 6 are aligned by the inner guide post 12 and the inner guide sleeve 13. The strip material is precisely positioned with the mold by the positioning pin 14. The lower mold is designed with a floating pin 15 to remove the strip material from the mold surface for easy transfer to the next process.

[0038] The upper clamping plate 3 is equipped with punches for all processes of producing precision contact terminals of M.2 connectors, starting from the feeding end. The punches are fixed to the upper clamping plate 3 by a pressure plate. The stripper plate 5 is equipped with punch guide parts, also known as stripper plate 5 inserts, starting from the feeding end. The stripper plate 5 is equipped with positioning pins 14 for guiding and positioning the strip, which cooperate with the positioning holes of the strip to ensure the product's positional accuracy. The lower template 6 is equipped with dies for all processes of producing precision contact terminals of M.2 connectors, starting from the feeding end, with a one-to-one correspondence between the punches and dies.

[0039] The production process of the stamping die for the precision contact terminals of M.2 connectors consists of 8 steps, such as... Figure 2 As shown. The corresponding structures of the upper and lower dies include punching holes and blanking structures, edge trimming-precision cutting-half cutting-blank blanking-pre-bending-forming-adjustment, upward forming "Z" shape forming, "Z" shape adjustment, etc.

[0040] The mold incorporates multiple complex bending processes for the precision contact terminals of M.2 connectors, including edge trimming, fine cutting, partial cutting, blanking, piercing, pre-bending, forming, and adjustment, enabling efficient direct production of products from a single continuous die. This continuous die begins by punching out positioning holes and blanking the material at the edge; then, the complex processes of edge trimming, fine cutting, partial cutting, blanking, pre-bending, forming, and adjustment ensure that the chamfer dimensions meet requirements. Next, the solder feet are pierced and blanked, followed by the forming of the "Z"-shaped structure and adjustments to ensure product dimensional requirements are met. After the solder feet are formed, the material is cut into strips, ultimately cutting one copper strip into two copper strips (eight parts per punch).

[0041] Working principle: This stamping die is set on a press machine with a tonnage of 40 Ton or above. The upper die moves up and down driven by the upper slide of the press to stamp the workpiece. Each stamping stroke completes one process at each station. After the part is formed in a "Z" shape, it is divided into two copper strips to produce eight parts (four parts per stroke from one copper strip). The strip then moves along... Figure 3 The arrow indicates that the stamping process proceeds 2.0 (0.5 for a single piece) forward to achieve continuous production.

[0042] Furthermore, the multiple progressive steps include a breakage step S1, an edge trimming step S2, a blanking step S3, a round hole step, a spring forming step, a solder lead forming step, a protective lead forming step, and a high / low pin adjustment step S22.

[0043] The breakage step S1, trimming step S2, blanking step S3, round hole step, and high / low pin adjustment step S22 each include a punch connected to the upper clamping plate 3 and a die connected to the lower template 6; the breakage step S1, trimming step S2, blanking step S3, round hole step, and high / low pin adjustment step S22 are used to complete the product's breakage, trimming, blanking, round hole cutting, and high / low pin adjustment processes, respectively.

[0044] The forming of the spring, the forming of the solder pad, and the forming of the protective pin each include multiple steps to complete the forming process of the spring, the solder pad, and the protective pin.

[0045] The spring forming process includes spring puncture step S4, spring blanking step S5, spring head cutting step S14, spring head forming step S15, spring head shaping step S16, spring position adjustment step S17, and spring height adjustment step S18.

[0046] The spring puncture step S4, spring blanking step S5, spring head cutting step S14, spring head forming step S15, spring head shaping step S16, spring position adjustment step S17, and spring height adjustment step S18 are respectively used to complete the spring puncture, blanking, cutting the head outline shape, head shape forming, head shape shaping, position adjustment, and height adjustment processes.

[0047] The solder lead forming process includes step S9 (A) with solder lead piercing, step S6 (B) with solder lead piercing, step S10 (Solder lead pre-bending), step S11 (Solder lead forming), step S12 (Solder lead position adjustment), and step S13 (Solder lead angle adjustment).

[0048] The steps S9 (A-band solder foot piercing), S6 (B-band solder foot piercing), S10 (solder foot pre-bending), S11 (solder foot forming), S12 (solder foot position adjustment), and S13 (solder foot angle adjustment) are respectively used for the solder foot piercing in the A-band area, the solder foot piercing in the B-band area, the solder foot pre-bending, the solder foot forming, the solder foot position adjustment, and the solder foot angle adjustment processes.

[0049] The protective foot forming process includes protective foot puncture step S19, protective foot forming step S20, and protective foot adjustment step S21.

[0050] The protective foot piercing step S19, protective foot forming step S20, and protective foot adjustment step S21 are respectively used for piercing the protective foot, forming the protective foot, and adjusting the shape and position of the protective foot.

[0051] In this embodiment, a progressive die is a type of die used on a stamping press that can complete multiple stamping operations in one stamping cycle. The working principle of this die is that the raw material advances continuously within the die at a certain step distance; each step forward completes one stamping operation, ultimately yielding the finished product. The main advantage of progressive dies is their high production efficiency, as they can complete multiple operations in a single stamping cycle, resulting in fast production speeds. Furthermore, due to the high utilization rate of raw materials, material waste is minimal. However, the design and manufacture of this type of die are quite challenging, requiring extensive experience and advanced technical skills.

[0052] In the specific implementation process, such as Figures 2-7 As shown, the steps completed from left to right are: easy breakage step S1, edge trimming step S2, blanking step S3, spring piercing step S4, spring blanking step S5, B-band solder lead piercing step S6, A-band round hole blanking step S7, B-band round hole blanking step S8, A-band solder lead piercing step S9, solder lead pre-bending step S10, solder lead forming step S11, solder lead position adjustment step S12, solder lead angle adjustment step S13, spring head cutting step S14, spring head forming step S15, spring head shaping step S16, spring position adjustment step S17, spring height adjustment step S18, protective lead piercing step S19, protective lead forming step S20, protective lead adjustment step S21, high and low PIN adjustment step S22.

[0053] Among them, the trimming, precision cutting, half cutting, blanking, piercing, pre-bending, forming, angle adjustment, and height adjustment of stamping dies refer to:

[0054] Trimming: also known as edge trimming, is the process of trimming the edges of a stamped part to remove excess material and bring it to the required shape and size.

[0055] Precision cutting: This is a precise cutting process mainly used to process the edges of stamped parts, so as to achieve higher precision and better surface quality.

[0056] Half-cut: This involves cutting the material in half, without cutting it completely, so that it can be easily bent or shaped in subsequent processes.

[0057] Blanking: This is the process of cutting the stamped part from the raw material, which is to complete the shape and size of the stamped part.

[0058] Punching: This is the process of drilling holes in stamped parts, which can be used to create holes of various shapes and sizes.

[0059] Pre-bending: This involves performing a preliminary bending on the stamped part to prepare it for subsequent forming processes.

[0060] Forming: This refers to processing stamped parts into their final shape, which can include various processes such as bending, stretching, and compression.

[0061] Angle adjustment: This refers to adjusting the angle of the stamped part as needed during the stamping process to meet design requirements.

[0062] Height adjustment: This refers to adjusting the height of the stamped part during the stamping process as needed to meet design requirements.

[0063] These processes are all achieved through different parts of the mold. For example, trimming and precision cutting are achieved through the cutting part of the mold, pre-bending and forming are achieved through the forming part of the mold, and angle and height adjustments are achieved by adjusting the corresponding parts of the mold.

[0064] Easy-break is a stamping process that involves specially treating the material during stamping to make it prone to fracture at certain locations. This process is typically used for parts that need to break at specific points, such as connectors that need to be broken. The easy-break process is usually achieved by setting special cutting sections in the die to locally cut the material during stamping, but not completely sever it, leaving a connection. This allows for easy fracture at that location during subsequent use. This process effectively controls the fracture location of parts, improving product performance and safety.

[0065] Among these steps, those starting with "A belt" or "B belt" refer to steps that only process A belt or B belt, while those not starting with "A belt" or "B belt" refer to steps that process both A belt and B belt simultaneously. Similar descriptions in the preceding and following text all indicate the same meaning.

[0066] In some embodiments, a spring is part of a connector terminal and is primarily used for physical connection with a plug. Springs are typically made of a resilient material that springs open when the plug is inserted and returns to its original position when the plug is removed, thus achieving a stable electrical connection. Solder leads are part of a connector terminal and are primarily used for soldering connections to a circuit board. Solder leads are typically made of easily solderable materials and can form a stable electrical connection with pads on the circuit board through soldering. Protective leads are part of a connector terminal and are primarily used to protect other parts of the terminal from damage during insertion, removal, or soldering. Protective leads are typically made of rigid materials and can effectively resist physical impacts and thermal stress.

[0067] These parts are all important components of the connection terminals, and they work together to achieve a stable and reliable electrical connection.

[0068] Furthermore, in the multiple progressive steps, each step processes four consecutive parts on the material strip.

[0069] In some embodiments, each step processes four consecutive parts on the strip, and the punch and die of each step are set to the position and shape of processing four consecutive workpieces, and the strip moves forward by the distance of four parts each time.

[0070] Furthermore, a positioning pin 14 is connected to the stop plate 4, and a positioning hole is provided on the strip; the positioning pin 14 is used to cooperate with the positioning hole to realize the positioning of the strip with the punch assembly and the die assembly.

[0071] In this embodiment, the positioning hole on the strip can be obtained by stamping in the step of forming the positioning hole, or by using the hole formed in other steps. The shape, position and size of the positioning pin 14 match the positioning hole.

[0072] Furthermore, a floating pin 15 is provided on the lower mold base 8. The floating pin 15 is used to detach the strip from the surface of the mold so that the strip can be moved to the next step.

[0073] The floating pin 15 is used to detach the strip from the surface of the mold, and to move the strip in conjunction with manual labor or automated equipment such as a robotic arm.

[0074] Furthermore, the stamping die uses C19910-TM08 copper strip with a blank thickness of 0.12mm. C19910-TM08 copper is a special copper alloy material. C19910 is the material grade, usually representing the chemical composition and performance characteristics of this material. TM08 may refer to the state or processing technology of this material. C19910 copper is a copper alloy containing a specific ratio of tin and zinc, possessing good electrical conductivity and corrosion resistance, as well as a certain strength and hardness. This material is commonly used to manufacture components for various electrical connectors, switches, contactors, and other electrical equipment.

[0075] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A continuous stamping die for producing precision contact terminals of M.2 connectors, characterized in that: The die includes an upper die and a lower die. The upper die includes an upper die base (1), an upper pad (2) and an upper clamping plate (3) connected to the upper die base (1), a stop plate (4) and a stripper plate (5) connected to each other. The lower die includes a lower die base (8), a lower pad (7) and a lower template (6) connected to the lower die base (8). The stamping die also includes an outer guide post (10), an outer guide sleeve (11), an inner guide post (12), and an inner guide sleeve (13) that cooperate with each other. The outer guide post (10) is fixed on the lower die base (8), and the outer guide sleeve (11) is set on the upper die base (1). The upper die and the lower die are positioned and guided by the outer guide post (10) and the outer guide sleeve (11). The upper clamping plate (3), the stripper plate (5), and the lower template (6) are guided by the inner guide post (12) and the inner guide sleeve (13). The upper clamping plate (3) is connected to a punch assembly, and the lower template (6) is connected to a die assembly. The punch assembly and the die assembly correspond in shape and position and are used to produce precision contact terminals for M.2 connectors. The punch assembly and the die assembly include multiple progressive steps arranged along the length direction of the stamping die. Two sets of punch assemblies and die assemblies are arranged in the width direction of the stamping die, namely, A-band punch assembly, A-band die assembly, B-band punch assembly, and B-band die assembly. A strip of material is input at the feeding end of the stamping die. The strip of material includes an A-band area and a B-band area. The A-band punch assembly and the A-band die assembly are used to process the A-band area. The B-band punch assembly and the B-band die assembly are used to process the B-band area.

2. The continuous stamping die for producing precision contact terminals of M.2 connectors according to claim 1, characterized in that: The multiple progressive steps include the breakage step, edge trimming step, blanking step, round hole step, spring forming, solder pin forming, protection pin forming, and high / low pin adjustment step; The breakage step, trimming step, blanking step, round hole step, and high / low PIN adjustment step each include a punch connected to the upper clamping plate (3) and a die connected to the lower template (6); the breakage step, trimming step, blanking step, round hole step, and high / low PIN adjustment step are used to complete the product's breakage, trimming, blanking, round hole cutting, and high / low PIN adjustment processes, respectively. The forming of the spring, the forming of the solder pad, and the forming of the protective pin each include multiple steps to complete the forming process of the spring, the solder pad, and the protective pin.

3. The continuous stamping die for producing precision contact terminals of M.2 connectors according to claim 2, characterized in that: The spring forming process includes spring puncture step, spring blanking step, spring head cutting step, spring head forming step, spring head shaping step, spring position adjustment step, and spring height adjustment step. The spring puncture step, spring blanking step, spring head cutting step, spring head forming step, spring head shaping step, spring position adjustment step, and spring height adjustment step are respectively used to complete the spring puncture, blanking, cutting the head outline shape, head shape forming, head shape shaping, position adjustment, and height adjustment processes.

4. A continuous stamping die for producing precision contact terminals of M.2 connectors according to claim 2, characterized in that: The solder lead forming process includes step A (solder lead piercing), step B (solder lead piercing), step pre-bending, step forming, step adjusting position, and step adjusting angle. The steps for piercing solder feet in the A-band area, piercing solder feet in the B-band area, pre-bending solder feet, forming solder feet, adjusting solder feet position, and adjusting solder feet angle are respectively used for piercing solder feet in the A-band area, piercing solder feet in the B-band area, pre-bending solder feet, forming solder feet, adjusting solder feet position, and adjusting solder feet angle.

5. A continuous stamping die for producing precision contact terminals of M.2 connectors according to claim 2, characterized in that: The protective foot forming process includes a protective foot puncture step, a protective foot forming step, and a protective foot adjustment step. The protective foot piercing step, protective foot forming step, and protective foot adjustment step are respectively used for piercing the protective foot, forming the protective foot, and adjusting the shape and position of the protective foot.

6. A continuous stamping die for producing precision contact terminals of M.2 connectors according to claim 2, characterized in that: In each of the multiple progressive steps, four consecutive parts are processed on the material strip.

7. A continuous stamping die for producing precision contact terminals of M.2 connectors according to any one of claims 1 to 6, characterized in that: The stop plate (4) is connected to a positioning pin (14), and the strip is provided with a positioning hole; the positioning pin (14) is used to cooperate with the positioning hole to realize the positioning of the strip with the punch assembly and the die assembly.

8. A continuous stamping die for producing precision contact terminals of M.2 connectors according to any one of claims 1 to 6, characterized in that: The lower mold base (8) is provided with a floating pin (15), which is used to detach the strip from the surface of the mold so that the strip can be moved to the next step.

9. A continuous stamping die for producing precision contact terminals of M.2 connectors according to claim 1, characterized in that: The stamping die uses C19910-TM08 copper material with a blank thickness of 0.12mm.

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