Hardware stamping die for electrode connecting piece

Abstract

The utility model discloses a hardware stamping die for an electrode connecting piece, and relates to the technical field of stamping dies. The stamping die comprises a lower die base and an upper die base, a lower die is arranged on the upper side of the lower die base, an upper die is arranged on the lower side of the upper die base, two stamping heads are arranged on the upper side of the lower die, and stamping grooves corresponding to the stamping heads are vertically formed in the upper die. The upper side of the upper die is provided with a connecting cylinder corresponding to the stamping groove, the lower side of the upper die base is provided with a plurality of embedded grooves matched with the connecting cylinder, and the connecting cylinder is rotationally matched with a rotating piece. According to the electrode connecting piece punching device, the demolding assembly is matched with the first spring, so that the demolding assembly is conveniently pushed by the elastic force of the first spring to push a punched electrode connecting piece out of the punching groove, the probability that the punched electrode connecting piece is clamped in the punching groove is reduced, and the production efficiency of the electrode connecting piece clamp is improved; and the initial position of the demolding assembly in the stamping groove can be conveniently and flexibly adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of stamping dies, specifically, it relates to a metal stamping die for electrode connecting pieces. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products).

[0003] Chinese Patent No. CN215845228U discloses a stamping die for processing connecting pieces, including: an upper die base, a lower die base, an upper die, and a lower die. An installation groove is provided below the upper die base, and the upper die is disposed inside the installation groove. A stamping head is fixedly connected to the lower surface of the upper die. A fixing groove is provided on the upper surface of the lower die base, and the lower die is disposed inside the lower die base. A stamping groove is provided on the upper surface of the lower die.

[0004] However, when the stamping die for processing connecting pieces disclosed in the application is stamping the connecting pieces, the stamped connecting pieces may get stuck in the stamping groove, requiring manual removal of the stuck connecting pieces from the stamping groove, which can easily affect the production efficiency of connecting piece stamping. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a metal stamping die for electrode connecting pieces, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A metal stamping die for electrode connecting pieces includes: a lower die base and an upper die base. A lower die is provided on the upper side of the lower die base, and an upper die is provided on the lower side of the upper die base. Two stamping heads are provided on the upper side of the lower die, and a stamping groove corresponding to the stamping head is provided vertically on the upper die. The stamping groove penetrates the upper die.

[0008] The upper mold is equipped with a connecting cylinder corresponding to the stamping groove on its upper side. The stamping groove is connected to the connecting cylinder. The lower side of the upper mold base is equipped with multiple embedded grooves that are adapted to the connecting cylinder. The connecting cylinder is located in the corresponding embedded groove. A rotating part is rotatably fitted on the connecting cylinder. Two adjusting components are rotatably fitted inside the connecting cylinder. The upper parts of the two adjusting components are engaged with the rotating part. The rotating part is located between the two adjusting components. The lower part of the adjusting components is rotatably fitted inside the upper mold. A lifting seat is slidably fitted inside the connecting cylinder. The lifting seat is located below the rotating part. A demolding component is slidably fitted at the lower part of the lifting seat. The lower part of the demolding component is slidably fitted inside the stamping groove. A spring is installed between the demolding component and the upper end face of the inner wall of the lifting seat. Two sliders are installed on the side of the lifting seat. The sliders are threadedly fitted around the corresponding adjusting components.

[0009] Optionally, the demolding assembly includes a pressure plate that is slidably fitted inside the lifting seat. A spring is installed between the pressure plate and the upper end face of the inner wall of the lifting seat. A connecting rod is installed on the lower end face of the pressure plate. The lower end of the connecting rod extends through to the outside of the lifting seat. An abutment plate is installed on the lower end face of the connecting rod. The abutment plate is located below the lifting seat.

[0010] Optionally, the rotating component includes a knob that is rotatably fitted on the upper end face of the connecting cylinder. The lower end of the knob extends into the inner cavity of the connecting cylinder. A drive gear is mounted on the lower end face of the knob. The drive gear is rotatably fitted on the upper end face of the inner wall of the connecting cylinder. The upper part of the adjusting component meshes with the drive gear.

[0011] Optionally, the adjustment assembly includes a driven gear that meshes with the driving gear. The driving gear is located between the two driven gears. A screw is mounted on the lower end face of the driven gear. The lower end of the screw is rotatably fitted inside the upper mold. A slider is threadedly fitted around the circumference of the screw.

[0012] Optionally, the side of the stamping groove is provided with a slide groove corresponding to the slider, the lower end of the screw is rotatably engaged in the corresponding slide groove, and the slider is slidably engaged in the slide groove.

[0013] Optionally, the inner wall of the connecting cylinder is provided with a movable groove corresponding to the driven gear. The driven gear rotates and engages in the corresponding movable groove. The lower end face of the movable groove is provided with a straight groove corresponding to the screw. The straight groove is connected to the sliding groove, and the screw vertically passes through the straight groove.

[0014] Optionally, both the lower mold base and the upper mold base have two connecting rods that are elastically fitted inside. Each end face of the connecting rod is equipped with a handle and a baffle. The handle is located on one side of the corresponding lower mold base and upper mold base. The baffle is equipped with two inserts on the side away from the connecting rod. Both sides of the lower mold and the upper mold have two insertion holes, and the inserts are engaged in the corresponding insertion holes.

[0015] Optionally, the lower mold base has a slot on its upper side and the upper mold base has a slot on its lower side. The lower mold and the upper mold are respectively engaged in the corresponding slot. The lower mold base and the upper mold base have through slots on both sides. The connecting rod is slidably engaged in the through slot. The through slot has a limiting slot on its periphery. The baffle is slidably engaged in the limiting slot. A second spring is installed between the baffle and one side of the limiting slot. The second spring is located on the periphery of the connecting rod. There is a slot between the limiting slot and the slot that corresponds to the insertion hole. The insertion block is slidably engaged in the corresponding slot.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0017] By cooperating with the spring, the ejector assembly can be pushed out of the stamping groove by the spring force, reducing the probability of the stamped electrode connecting piece getting stuck in the stamping groove and improving the production efficiency of electrode connecting piece stuck. By cooperating with the slider, the initial position of the ejector assembly in the stamping groove can be flexibly adjusted, effectively dealing with the problem of spring force attenuation and extending the service life of the equipment.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0020] In the picture:

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the lower mold base and the upper mold base;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the lifting seat.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] Lower mold base 1, upper mold base 2, lower mold 3, upper mold 4, stamping head 5, stamping groove 6, connecting cylinder 7, inner groove 8, knob 9, driving gear 10, driven gear 11, screw 12, lifting seat 13, slider 14, spring 15, pressure plate 16, connecting rod 17, contact plate 18, connecting rod 19, baffle 20, spring 21, insert block 22.

[0026] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In modern electronic and electrical equipment, electrode connectors serve as crucial connecting components, playing a vital role in connecting electrodes and transmitting current. With the rapid development of electronic technology, higher demands are placed on the performance, precision, and production efficiency of electrode connectors. Stamping dies, as the primary production tool for electrode connectors, directly impact the quality and production efficiency of the connectors through their design and manufacturing level. Therefore, in-depth research on electrode connectors and their stamping dies is of significant practical importance.

[0030] I. Overview of Electrode Connectors

[0031] (I) Functions and roles of electrode connecting pieces

[0032] Electrode connectors are primarily used in electronic devices to connect different electrodes, ensuring stable and reliable current transmission. They connect battery electrodes to circuit boards, electrical components, and other devices to achieve the transfer and distribution of electrical energy. In some complex circuit systems, electrode connectors can also serve functions such as signal transmission and mechanical fixation.

[0033] (II) Application Areas of Electrode Connectors

[0034] Electrode connectors are widely used in various electronic devices, such as mobile phones, tablets, laptops, electric vehicles, and smart home devices. In the electric vehicle field, electrode connectors are used to connect battery modules, ensuring stable current transmission between batteries and improving the performance and safety of the battery system. In smart home devices, electrode connectors are used to connect various sensors and control modules, enabling signal transmission and control between devices.

[0035] (III) Material Selection for Electrode Connectors

[0036] The choice of material for electrode connectors has a significant impact on their performance and service life. Commonly used electrode connector materials include copper, aluminum, and stainless steel. Copper has good electrical and thermal conductivity, making it one of the most commonly used electrode connector materials. Aluminum has a low density and is lightweight, and also has some electrical conductivity, making it suitable for applications where weight is a concern. Stainless steel has good corrosion resistance and mechanical strength, making it suitable for applications in harsh environments.

[0037] (iv) Performance requirements of electrode connecting pieces

[0038] 1. Conductivity: The electrode connectors need to have good conductivity to ensure that the current can be transmitted smoothly and reduce resistance and energy loss.

[0039] 2. Mechanical strength: During use, the electrode connecting piece needs to withstand certain mechanical stresses, such as tension and bending, so it needs to have sufficient mechanical strength.

[0040] 3. Corrosion resistance: Electrode connectors may be exposed to various environments, such as humidity, acids and alkalis, so they need to have good corrosion resistance to ensure the stability of their performance.

[0041] 4. Dimensional accuracy: To ensure that the electrode connecting piece can accurately fit with other components, it needs to have high dimensional accuracy.

[0042] II. Manufacturing of Electrode Connector Stamping Dies

[0043] (I) Selection of mold materials

[0044] The selection of mold materials should be based on the mold's usage requirements and working conditions. Commonly used mold materials include carbon tool steel, alloy tool steel, high-speed steel, and cemented carbide. For electrode connecting piece stamping dies, alloy tool steel or high-speed steel with high hardness, wear resistance, and toughness are generally selected.

[0045] (II) Mold Processing Technology

[0046] 1. Machining: Machining of molds mainly includes turning, milling, planing, grinding, and other processing methods. Through machining, the mold blank can be processed into the required shape and size.

[0047] 2. Electrical Discharge Machining: Electrical discharge machining is a machining method that uses electric sparks to corrode metal. It is suitable for machining some mold parts with complex shapes and high precision requirements, such as punches and dies.

[0048] 3. Wire EDM: Wire EDM is a machining method that uses electrical discharge to cut metal. It is suitable for machining mold parts with complex shapes and high precision requirements, such as punches and dies.

[0049] 4. Heat treatment: Heat treatment is an important process for improving mold performance. Through heat treatment, the hardness, wear resistance and toughness of the mold can be improved, and the service life of the mold can be extended.

[0050] (III) Mold Assembly and Debugging

[0051] 1. Mold Assembly: Mold assembly is the process of assembling the machined mold components according to design requirements. During assembly, it is necessary to ensure the fitting accuracy and positional accuracy between mold components to ensure the normal operation of the mold.

[0052] 2. Mold Debugging: Mold debugging is the process of test-pressing the mold after assembly to check its working performance and workpiece quality. During debugging, it is necessary to adjust the mold's punch-die clearance, positioning mechanism, and unloading mechanism to ensure that the mold can produce workpieces that meet the requirements.

[0053] Electrode connectors, as crucial connecting components in electronic and electrical equipment, directly impact the normal operation of the equipment through their performance and quality. Stamping dies, as the primary production tools for electrode connectors, play a key role in the quality and production efficiency of these connectors through their design and manufacturing level. In-depth research on electrode connectors and their stamping dies allows for a better understanding of their design principles, manufacturing processes, and development trends, providing strong support for improving the performance and quality of electrode connectors and promoting the development of the electronic and electrical industry. Simultaneously, with continuous technological advancements, electrode connectors and their stamping dies will continue to evolve and innovate, bringing new opportunities and challenges to the electronic and electrical industry.

[0054] Please see Figure 1-3 As shown, this embodiment provides a metal stamping die for electrode connecting pieces, including: a lower die base 1 and an upper die base 2. A lower die 3 is provided on the upper side of the lower die base 1, and an upper die 4 is provided on the lower side of the upper die base 2. Two stamping heads 5 are provided on the upper side of the lower die 3, and a stamping groove 6 corresponding to the stamping head 5 is provided vertically on the upper die 4. The stamping groove 6 penetrates the upper die 4.

[0055] The upper mold 4 is equipped with a connecting cylinder 7 corresponding to the stamping groove 6. The stamping groove 6 is connected to the connecting cylinder 7. The lower side of the upper mold base 2 is equipped with multiple embedded grooves 8 that are adapted to the connecting cylinder 7. The connecting cylinder 7 is located in the corresponding embedded groove 8. A rotating part is rotatably fitted on the connecting cylinder 7. Two adjusting components are rotatably fitted inside the connecting cylinder 7. The upper parts of the two adjusting components are engaged with the rotating part. The rotating part is located between the two adjusting components. The lower part of the adjusting components is rotatably fitted inside the upper mold 4. A lifting seat 13 is slidably fitted inside the connecting cylinder 7. The lifting seat 13 is located below the rotating part. A demolding component is slidably fitted at the lower part of the lifting seat 13. The lower part of the demolding component is slidably fitted inside the stamping groove 6. A spring 15 is installed between the demolding component and the upper end face of the inner wall of the lifting seat 13. Two sliders 14 are installed on the side of the lifting seat 13. The sliders 14 are threadedly fitted around the corresponding adjusting components.

[0056] One application of this embodiment is as follows: During use, the electrode connecting piece material is placed on the lower mold 3 and the stamping machine is started for stamping. During the stamping process, the upper mold base 2 moves towards the lower mold base 1. When it reaches the point where the stamping head 5 enters the stamping groove 6, the demolding component encounters resistance and stops moving. Then, the upper mold base 2 continues to move downward, driving the connecting cylinder 7 and the lifting seat 13 to move downward synchronously. During the downward movement, the lifting seat 13 squeezes the spring 15. After the electrode connecting piece is formed, the upper mold base 2 begins to move upward and reset. The spring 15 releases its elasticity, keeping the demolding component in its original position until the stamping groove 6 and the stamping head 5 are aligned. After complete separation, the demolding assembly is pushed back to its original position in the stamping groove 6 by spring 15. Simultaneously, the electrode connecting piece disengages from the stamping groove 6 along with the demolding assembly's repositioning. When the elasticity of spring 15 weakens after prolonged use, remove the upper mold 4 and rotate the rotating component. This causes the rotating component to drive the two adjusting components to rotate. The rotation of the adjusting components drives the lifting seat 13 to slide downwards via slider 14, thereby adjusting the initial position of the demolding assembly in the stamping groove 6. After adjustment, reinstall the upper mold 4 and stamp again for testing. Observe the springback speed of the demolding assembly and the demolding effect of the electrode connecting piece. If still unsatisfactory, readjust until the requirements are met. It should be noted that all electrical equipment involved in this application can be powered by a battery or an external power source.

[0057] By cooperating with the demolding component and spring 15, the demolding component is pushed out of the stamping groove 6 by the elastic force of spring 15, which reduces the probability of the stamped electrode connecting piece getting stuck in the stamping groove 6 and improves the production efficiency of electrode connecting piece stuck. By cooperating with the adjusting component and the slider 14, the initial position of the demolding component in the stamping groove 6 can be flexibly adjusted, which effectively solves the problem of spring 15 elasticity attenuation and extends the service life of the equipment.

[0058] like Figure 3 As shown, the demolding assembly of this embodiment includes a pressure plate 16, which is slidably fitted inside the lifting seat 13. A spring 15 is installed between the pressure plate 16 and the upper end face of the inner wall of the lifting seat 13. A connecting rod 17 is installed on the lower end face of the pressure plate 16, and the lower end of the connecting rod 17 extends to the outside of the lifting seat 13. An abutment plate 18 is installed on the lower end face of the connecting rod 17, which is located below the lifting seat 13. The pressure plate 16 cooperates with the spring 15, so that when the spring 15 rebounds and resets, it pushes the pressure plate 16 to displace the connecting rod 17 and the abutment plate 18, pushing the electrode connecting piece out of the stamping groove 6.

[0059] like Figure 3As shown, the rotating component in this embodiment includes a knob 9, which is rotatably fitted on the upper end face of the connecting cylinder 7. The lower end of the knob 9 extends into the inner cavity of the connecting cylinder 7. The vertical cross-section of the knob 9 is T-shaped. A drive gear 10 is mounted on the lower end face of the knob 9. The drive gear 10 is rotatably fitted on the upper end face of the inner wall of the connecting cylinder 7. The upper part of the adjusting component meshes with the drive gear 10. By cooperating with the drive gear 10, the knob 9 can be rotated outside the connecting cylinder 7 to adjust the position of the lifting seat 13.

[0060] like Figure 3 As shown, the adjustment assembly of this embodiment includes a driven gear 11 that meshes with the driving gear 10. The driving gear 10 is located between the two driven gears 11. A screw 12 is installed on the lower end face of the driven gear 11. The lower end of the screw 12 is rotatably fitted in the upper mold 4. The slider 14 is threadedly fitted on the periphery of the screw 12. The screw 12 and the slider 14 cooperate to facilitate the forward and reverse rotation of the driven gear 11 so that the lifting seat 13 can slide up and down.

[0061] like Figure 3 As shown, the side of the stamping groove 6 in this embodiment is provided with a groove corresponding to the slider 14. The lower end of the screw 12 is rotatably engaged in the corresponding groove, and the slider 14 is slidably engaged in the groove. The sliding distance of the lifting seat 13 is limited by the groove, thereby improving the stability of the slider 14 when sliding.

[0062] like Figure 3 As shown, the inner wall side of the connecting cylinder 7 in this embodiment is provided with a movable groove corresponding to the driven gear 11. The driven gear 11 is rotatably engaged in the corresponding movable groove. The lower end face of the movable groove is provided with a straight groove corresponding to the screw 12. The straight groove is connected to the sliding groove. The screw 12 vertically passes through the straight groove. The movable groove provides rotation space for the driven gear 11, improving the stability of the driven gear 11 rotation. The straight groove improves the stability of the screw 12 rotation.

[0063] like Figure 2 As shown, in this embodiment, both the lower mold base 1 and the upper mold base 2 are elastically fitted with two connecting rods 19. Each end face of the connecting rod 19 is equipped with a handle and a baffle 20. The handle is located on the side corresponding to the lower mold base 1 and the upper mold base 2. The side of the baffle 20 away from the connecting rod 19 is equipped with two insert blocks 22. Both sides of the lower mold 3 and the upper mold 4 are provided with two insertion holes. The insert blocks 22 are snapped into the corresponding insertion holes. By engaging the handle with the connecting rod 19, it is easy to pull the insert blocks 22 out of the insertion holes, thereby realizing the separation of the lower mold 3 from the lower mold base 1 and the upper mold 4 from the upper mold base 2, which facilitates the replacement of the lower mold 3 and the upper mold 4. By engaging the insert blocks 22 with the insertion holes, it is easy to install and fix the lower mold base 1 and the lower mold 3, as well as the upper mold base 2 and the upper mold 4.

[0064] like Figure 2As shown, in this embodiment, the lower mold base 1 and the upper mold base 2 are both provided with slots. The lower mold 3 and the upper mold 4 are respectively engaged in the corresponding slots. Both sides of the lower mold base 1 and the upper mold base 2 are provided with through slots. The connecting rod 19 is slidably fitted in the through slot. A limiting slot is provided around the through slot. The baffle 20 is slidably fitted in the limiting slot. A spring 21 is installed between the baffle 20 and one side of the limiting slot. The spring 21 is located around the connecting rod 19. A slot corresponding to the insertion hole is provided between the limiting slot and the slot. The insertion block 22 is slidably fitted in the corresponding slot. In use, taking the upper mold base 2 as an example, the two sides are pulled... Pull the handle to insert the insert 22 into the slot, then place the upper mold 4 into the slot. After releasing the handle, the baffle 20 is pushed by the spring force of the second spring 21, causing the insert 22 to quickly return to its original position and engage in the insertion hole. This completes the installation and fixation between the upper mold base 2 and the upper mold 4. Then, refer to the above operation to complete the fixation between the lower mold base 1 and the lower mold 3. The baffle 20 and the second spring 21 cooperate to facilitate the release of the handle. The spring 21 rebounds and pushes the baffle 20 and the insert 22 to quickly return to their original positions, thereby engaging the insert 22 in the insertion hole and completing the installation and fixation between the mold and the mold base.

[0065] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A metal stamping die for electrode connecting pieces, characterized in that, include: The lower mold base (1) and the upper mold base (2) are provided with a lower mold (3) on the upper side of the lower mold base (1) and an upper mold (4) on the lower side of the upper mold base (2). The lower mold (3) is provided with two stamping heads (5) on the upper side and the upper mold (4) is provided with a stamping groove (6) corresponding to the stamping head (5) in the vertical direction. The upper mold (4) is equipped with a connecting cylinder (7) corresponding to the stamping groove (6) on the upper side. The upper mold base (2) is equipped with multiple embedded grooves (8) that are adapted to the connecting cylinder (7) on the lower side. A rotating part is rotatably fitted on the connecting cylinder (7). Two adjusting components are rotatably fitted inside the connecting cylinder (7). The upper parts of the two adjusting components are engaged with the rotating part. A lifting seat (13) is slidably fitted inside the connecting cylinder (7). A demolding component is slidably fitted at the lower part of the lifting seat (13). A spring (15) is installed between the demolding component and the upper end face of the inner wall of the lifting seat (13). Two sliders (14) are installed on the side of the lifting seat (13). The sliders (14) are threadedly fitted around the corresponding adjusting components.

2. The metal stamping die for electrode connecting pieces according to claim 1, characterized in that, The demolding assembly includes a pressure plate (16), a spring (15) installed between the pressure plate (16) and the upper end face of the inner wall of the lifting seat (13), a connecting rod (17) installed on the lower end face of the pressure plate (16), the lower end of the connecting rod (17) extending through to the outside of the lifting seat (13), and an abutment plate (18) installed on the lower end face of the connecting rod (17).

3. A metal stamping die for electrode connecting pieces according to claim 1, characterized in that, The rotating component includes a knob (9), which rotates and engages with the upper end face of the connecting cylinder (7). The lower end face of the knob (9) is equipped with a drive gear (10), and the upper part of the adjusting component meshes with the drive gear (10).

4. A metal stamping die for electrode connecting pieces according to claim 3, characterized in that, The adjustment assembly includes a driven gear (11) that meshes with the driving gear (10), a screw (12) is mounted on the lower end face of the driven gear (11), and a slider (14) is threadedly fitted on the circumference of the screw (12).

5. A metal stamping die for electrode connecting pieces according to claim 4, characterized in that, The side of the stamping groove (6) is provided with a sliding groove corresponding to the slider (14), and the lower end of the screw (12) is rotatably fitted in the corresponding sliding groove.

6. A metal stamping die for electrode connecting pieces according to claim 5, characterized in that, The inner wall of the connecting cylinder (7) is provided with a movable groove corresponding to the driven gear (11), and the lower end face of the movable groove is provided with a straight groove corresponding to the screw (12), and the screw (12) passes vertically through the straight groove.

7. A metal stamping die for electrode connecting pieces according to claim 1, characterized in that, The lower mold base (1) and the upper mold base (2) each have two connecting rods (19) that are elastically fitted inside. The two ends of the connecting rods (19) are respectively equipped with handles and baffles (20). The side of the baffle (20) away from the connecting rods (19) is equipped with two inserts (22). The lower mold (3) and the upper mold (4) each have two insertion holes on both sides. The inserts (22) are snapped into the corresponding insertion holes.

8. A metal stamping die for electrode connecting pieces according to claim 7, characterized in that, The lower mold base (1) and the upper mold base (2) are provided with slots on the upper side and the upper mold base (2) respectively. The lower mold (3) and the upper mold (4) are respectively engaged in the corresponding slots. The lower mold base (1) and the upper mold base (2) are provided with through slots on both sides. The connecting rod (19) is slidably engaged in the through slot. The through slot is provided with a limiting slot on the periphery. The baffle (20) is slidably engaged in the limiting slot. A spring (21) is installed between the baffle (20) and one side of the limiting slot. A slot corresponding to the insertion hole is provided between the limiting slot and the slot.

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