A stamping and forging die for hardware processing

Abstract

This invention relates to the field of forging die technology and discloses a stamping and forging die for metal processing, including a lower die. Guide pillars are fixedly connected to all four sides of the top of the lower die, and springs are sleeved around the outer ring of each guide pillar. An upper die is slidably connected among the guide pillars. Shock-absorbing pads are fixedly installed around the bottom of the lower die. A cam is rotatably connected to each guide pillar, and a pair of latches are provided on one side of each cam. A second spring is fixedly connected to each latch, and a toothed plate is fixedly connected to one end of each second spring. This stamping and forging die for metal processing avoids contact between the upper die and the edge of the guide pillars when processing different workpieces in different batches, thus preventing wear between the guide pillar edges and the upper die. This ensures the safety of die production and improves the workpiece yield.

Description

Technical Field

[0001] This invention relates to the field of forging die technology, specifically to a stamping and forging die for metal processing. 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). They are called cold stamping dies (commonly known as cold stamping dies). Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or undergo plastic deformation, thereby obtaining the desired parts.

[0003] Existing stamping dies, during long-term use, experience slight wear on guide pillars and bushings due to continuous mold opening and closing. Slight misalignment during mold closing is not noticeable to the naked eye, causing the cutting edge to be skewed during cutting. This results in uneven product dimensions, sometimes even creating "steps," and leads to minor chipping at the cutting edge and cavity corners, ranging from large cracks to small chips. Over time, the burrs on the product become increasingly larger. The reason for this is that the upper and lower dies of a stamping die are typically fixed in one area with limited freedom of movement, only able to move up and down. When stamping products of uneven thickness, prolonged processing causes the upper die to come into contact with the material, resulting in slight movement of the upper die. As the upper die descends on the guide pillars, sliding friction occurs between it and the guide pillars, causing wear. Over time, slight misalignment occurs between the upper and lower dies, a fatal problem. Therefore, it is necessary to improve these issues and prevent their occurrence. To address this, we propose a new stamping and forging die for metal processing. Summary of the Invention

[0004] The purpose of this invention is to provide a stamping and forging die for metal processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a stamping and forging die for metal processing, comprising a lower die, guide posts fixedly connected to the top four sides of the lower die, springs sleeved on the outer rings of the guide posts, an upper die slidably connected between the guide posts, shock-absorbing pads fixedly installed around the bottom four sides of the lower die, a cam rotatably connected to each guide post, a pair of latches opened on one side of the cam, a second spring fixedly connected to each latch, a toothed plate fixedly connected to one end of the second spring, a limit plate fixedly installed on the side of the guide post, a slider slidably connected to the limit plate, a ratchet tooth meshing with the toothed plate on one side of the bottom of the slider, a pair of extension posts fixedly connected to the top of the guide posts, an adjusting plate slidably connected to the extension posts, a pair of leveling blocks fixedly installed around the top four sides of the upper die, when the slider rises, driving the adjusting plate to slide on the extension posts, so that the adjusting plate and the leveling blocks abut against each other.

[0006] Preferably, the top of the slider has a cross-shaped top plate structure, and the top of each slider is in contact with the bottom of each adjusting plate, and the planes of the bottom of the adjusting block and the top of the adjusting plate are parallel to each other.

[0007] Preferably, a protective ring is fixedly connected to the middle of both sides of the upper mold, and a first cylinder is slidably connected to the top of the protective ring. The first cylinder is rotatably connected to the upper mold, and an electromagnet is slidably connected inside the first cylinder. The bottom of the electromagnet is fixed inside the upper mold. A fixing plate is fixedly connected to the top of each first cylinder, and the bottom of the fixing plate is flush with the bottom of the shock-absorbing pad.

[0008] Preferably, the cam has multiple grooves on one side, the toothed plate has protrusions on one side that match the grooves, a counterweight is fixedly mounted on the cam, and a recessed area for reducing the counterweight is formed on one side of the top of the cam.

[0009] Preferably, telescopic strips are slidably connected to both sides of the upper mold, and a limit groove is opened at the top of the telescopic strip. One end of the telescopic strip extends towards the top of the guide post and protrudes to the side above the cam. A limit block is fixedly installed inside the upper mold near the top of each telescopic strip. A third spring is fixedly connected between two telescopic strips. Air holes are opened on each telescopic strip. Multiple air pipes are fixedly connected to the outside of the upper mold.

[0010] Preferably, an air supply plate is slidably connected to the bottom of the upper mold, and a second cylinder is fixedly connected to both sides of the bottom of the upper mold. A pressure plate is suspended at the bottom of the second cylinder. A pad is fixedly installed on the top of the lower mold, and a material ejection plate is detachably connected to the top of the pad. The tops of the pressure plate and the material ejection plate fit together, and a cutting tool is fixedly installed at the bottom of the air supply plate.

[0011] Preferably, the pressure plate has multiple air inlets around its perimeter, which are connected to the interior of the pressure plate. Multiple air rods are fixedly installed around the bottom of the air supply plate. Gas inside the air pipe enters the upper mold through the air inlets, and the upper mold distributes the gas to each air rod.

[0012] Preferably, the top of the shock-absorbing pad is fixedly mounted with multiple pressure plates in a ring shape, and each pressure plate is fixedly mounted with a conical roller. The bottom of the guide post is fixedly mounted with a central block, and the bottom of the central block extends between the multiple conical rollers, so that the multiple conical rollers and the central block abut against each other. Each pressure plate is connected to a force sensor.

[0013] Preferably, each guide post has a groove on its surface that slides with the telescopic strip. The radius of the guide post gradually increases from the top to the bottom, so that the groove tends to drive the telescopic strip to move into the upper mold.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. During the upward movement of the slider in this invention, the adjusting plate slides on the extension column, which is in an inclined state. When the adjusting plate slides on the extension column, it passes the edge of the guide column, causing the top of the adjusting plate to abut against the bottom of the leveling block. When the leveling block is under force, the entire upper and lower molds are in a parallel state, thus preventing tool misalignment. Each time the upper mold descends, the top of the adjusting plate abuts against the leveling block, ensuring the upper mold is always in a level state during operation. This avoids contact between the upper mold and the edge of the guide column when processing different workpieces and different batches, preventing wear on the guide column edge and the upper mold. This ensures the safety of mold production and improves workpiece yield.

[0016] 2. In this invention, when the upper die moves downward during the stamping process, if the upper die and the guide post come into contact, the sidewall of the upper die applies radial extrusion force to the surrounding conical rollers arranged in a ring. This extrusion force is transmitted to the pressure plates, causing the elastically designed pressure plates to undergo measurable elastic deformation. Force sensors connected to each pressure plate can collect pressure change data at the corresponding contact points in real time and at high frequency, and feed this data back to the central control system immediately. Through synchronous analysis and processing of multi-channel force feedback data, the control system can achieve precise and dynamic control of the stamping pressure during the die closing process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall side structure of the present invention;

[0019] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a schematic diagram of the guide post structure of the present invention;

[0021] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B;

[0022] Figure 6 This is a schematic diagram of the cam structure of the present invention;

[0023] Figure 7 This is a schematic diagram of the pressure plate and ejector plate structure of the present invention;

[0024] Figure 8 This is a schematic diagram of the guide column and shock-absorbing pad structure of the present invention;

[0025] Figure 9 This is a schematic diagram of the first cylinder and protective ring structure of the present invention.

[0026] In the diagram: 1-Upper mold; 2-Lower mold; 3-Guide post; 4-Spring; 5-Fixing plate; 6-First cylinder; 7-Shock damping pad; 8-Pad plate; 9-Removal plate; 10-Pressure plate; 11-Air pipe; 12-Second cylinder; 13-Air supply plate; 14-Leveling block; 15-Limiting plate; 16-Slider; 17-Telescopic strip; 18-Cam; 1801-Groove; 19-Counterweight; 20-Second spring; 21-Needling plate; 22-Extension post; 23-Adjusting plate; 24-Slide groove; 25-Air hole; 26-Third spring; 27-Limiting block; 28-Protective ring; 2801-Electromagnet; 29-Air rod; 30-Air inlet; 31-Conical roller; 32-Center block; 33-Pressure plate. Detailed Implementation

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

[0028] Please see Figure 1-9This invention provides a technical solution: a stamping and forging die for hardware processing, including a lower die 2. Guide pillars 3 are fixedly connected to the top four sides of the lower die 2, and springs 4 are sleeved around the outer ring of each guide pillar 3. An upper die 1 is slidably connected between multiple guide pillars 3. Shock-absorbing pads 7 are fixedly installed around the bottom four sides of the lower die 2. A cam 18 is rotatably connected to each guide pillar 3. Telescopic strips 17 are slidably connected to both sides inside the upper die 1. Limit grooves are formed at the top of the telescopic strips 17. A pair of latches are formed on one side of each cam 18, and a second spring 20 is fixedly connected to each latch. A toothed plate 21 is fixedly connected to one end of each second spring 20. The guide pillars 3 are fixedly connected to the sides of the lower die 2. A limiting plate 15 is fixedly installed, and a slider 16 is slidably connected to the limiting plate 15. One side of the bottom of the slider 16 has ratchet teeth that mesh with the toothed plate 21. A pair of extension posts 22 are fixedly connected to the top of the guide post 3, and an adjusting plate 23 is slidably connected to the extension post 22. A pair of leveling blocks 14 are fixedly installed around the top of the upper mold 1. When the slider 16 rises, it drives the adjusting plate 23 to slide on the extension post 22, causing the adjusting plate 23 and the leveling block 14 to abut against each other. The top of the slider 16 has a cross-shaped top plate structure, and the top of each slider 16 contacts the bottom of each adjusting plate 23. The planes of the bottom of the leveling block 14 and the top of the adjusting plate 23 are parallel to each other. When the mold... When the entire system begins operation, the upper die 1 typically slides downwards on the guide post 3. When the upper die 1 and the lower die 2 come into contact, the material is punched. During this process, as the upper die 1 descends, the telescopic strip 17 contacts one side of the cam 18, causing the cam 18 to rotate. As the cam 18 rotates, it generates centrifugal force on the second spring 20, forcing the second spring 20 to extend. This causes the second spring 20 to drive the toothed plate 21 to contact one side of the slider 16. As the cam 18 rotates, the toothed plate 21 causes the slider 16 to rise. As the slider 16 rises, the adjusting plate 23 slides on the extension post 22, which is tilted. In the inclined state, when the adjusting plate 23 slides on the extension column 22, the adjusting plate 23 passes over the edge of the guide column 3, and the top of the adjusting plate 23 abuts against the bottom of the leveling block 14. When the leveling block 14 is under force, the entire upper mold 1 and lower mold 2 will be in a parallel state, so that the tool misalignment will not occur. Each time the upper mold 1 descends, the top of the adjusting plate 23 abuts against the leveling block 14, so that the upper mold 1 is always in a level state during operation. This avoids the possibility of the upper mold 1 contacting the edge of the guide column 3 when processing different workpieces and different batches, thus preventing wear between the edge of the guide column 3 and the upper mold 1. This ensures the safety of mold production and improves the yield of workpieces.

[0029] It is worth mentioning that, as shown in the attached document Figure 3As shown, after the telescopic bar 17 contacts the cam 18, the cam 18 rotates, causing the upper mold 1 to level. When the upper mold 1 rises and resets, the telescopic bar 17 and the bottom of the cam 18 contact each other, and the cam 18 rotates clockwise. The toothed plate 21 on the cam 18 and the slider 16 are in a meshing state. When the cam 18 rotates clockwise, the toothed plate 21 also rotates clockwise. Due to the characteristics of the ratchet, when the toothed plate 21 and the slider 16 are meshed, the slider 16 cannot be driven to move downwards in the opposite direction. The slider 16 can only return to its initial position with the cam 18 while in a meshing state with the toothed plate 21. This prevents the toothed plate 21 from driving the slider 16 to descend, and the slider 16 automatically follows the toothed plate 21 back to the bottom of the limiting plate 15, thus placing the slider 16 at the bottom of the limiting plate 15. In fact, the initial position of the slider 16 is also at the bottom of the limiting plate 15. Returning the slider 16 and the toothed plate 21 to their initial positions facilitates the upper mold 1 to descend again to process the workpiece. The specific details are as follows:

[0030] Furthermore, protective rings 28 are fixedly connected to the middle of both sides of the upper mold 1. A first cylinder 6 is slidably connected to the top of the protective ring 28. The first cylinder 6 is rotatably connected to the upper mold 1. An electromagnet 2801 is slidably connected inside the first cylinder 6. The bottom of the electromagnet 2801 is fixed inside the upper mold 1. A fixing plate 5 is fixedly connected to the top of each first cylinder 6. The bottom of the fixing plate 5 is flush with the bottom of the shock-absorbing pad 7, as shown in the attached figure. Figure 9 As shown, the electromagnet 2801 has a spring structure, which is integrated with the electromagnet 2801. The upper mold 1 is driven by two first cylinders 6 to move up and down synchronously, improving overall consistency. When the upper mold 1 descends, the telescopic bar 17 is compressed, and the toothed plate 21 drives the slider 16 to rise, so that the adjusting plate 23 contacts the leveling block 14. At this time, the system automatically identifies the leveling parameters of the upper mold 1 and drives the electromagnet 2801 to be energized. There is an iron block at the bottom of the first cylinder 6. After the electromagnet 2801 is energized, it descends inside the first cylinder 6. The pressure generated by the electromagnet 2801 increases the pressure between the first cylinder 6 and the upper mold 1, while locking the leveling angle of the upper mold 1. This prevents the first cylinder 6 from shaking at the top of the upper mold 1 when it is driven by the upper mold 1, ensuring the stability of the upper mold 1 during operation.

[0031] Furthermore, the cam 18 has multiple grooves 1801 on one side, and the toothed plate 21 has a protrusion on one side that matches the grooves 1801. A counterweight 19 is fixedly installed on the cam 18, and a recessed area for reducing the counterweight is opened on one side of the top of the cam 18. When the cam 18 is driven by the telescopic bar 17, it needs to be reset. The counterweight 19 can enable the cam 18 to be reset quickly, preventing the angle of the cam 18 from being in a skewed state. The grooves 1801 can lock the toothed plate 21 on the cam 18 when the cam 18 rotates excessively, preventing the toothed plate 21 from slipping on the cam 18 and thus failing to effectively drive the slider 16 to rise and fall.

[0032] Furthermore, one end of the telescopic strip 17 extends towards the top of the guide post 3 and protrudes above the cam 18. A limit block 27 is fixedly installed inside the upper mold 1 near the top of each telescopic strip 17. A third spring 26 is fixedly connected between two telescopic strips 17. Each telescopic strip 17 has an air hole 25. Multiple air pipes 11 are fixedly connected to the outside of the upper mold 1. Each guide post 3 has a sliding groove 24 that slides with the telescopic strip 17. The radius of the guide post 3 gradually increases from the top to the bottom, thus giving the sliding groove 24 a tendency to drive the telescopic strip 17 to move into the upper mold 1. When the telescopic strip 17... When the telescopic bar 17 descends, it first contacts the cam 18, causing the third spring 26 to compress. The limiting block 27 restricts the range of movement of the telescopic bar 17. After the right side of the limiting groove at the top of the telescopic bar 17 abuts against the side of the limiting block 27, the end of the telescopic bar 17 slides along the slide groove 24. The air hole 25 is connected to the air pipe 11, allowing the cold air inside the air pipe 11 to be input into the upper mold 1, so that the upper mold 1 is in a cooling state during processing, thus improving the service life of the upper mold 1. As the upper mold 1 continues to descend, and the bottom of the slide groove 24 is curved, the telescopic bar 17 will slide inside the upper mold 1, causing the third spring 26 to compress again.

[0033] The overall process is as follows: When the upper mold 1 works for the first time, it moves downward, causing the end of the telescopic strip 17 to abut against the top edge of the cam 18. The cam 18 rotates, and the telescopic strip 17 is compressed. When the telescopic strip 17 is compressed, the end of the telescopic strip 17 drives the third spring 26 to compress until the right side of the limiting groove of the telescopic strip 17 abuts against the side of the limiting block 27. At this point, the third spring 26 is compressed to its limit position, air is released in the processing area, and the telescopic strip 17 can follow the upper mold 1 downward, separating the telescopic strip 17 from the cam 18 and causing the end of the telescopic strip 17 to lose contact. The third spring 26 elastically resets, and the processing area is sealed off. During the descent of the upper mold 1, the telescopic strip 17 remains on the slide groove 24 and does not abut against it. The bottom of the slide groove 24 has a rounded design, so the telescopic strip 17 follows the upper mold 1 to its descent limit. After positioning, the telescopic bar 17 contacts the bottom of the slide 24, and the bottom of the slide 24 can drive the telescopic bar 17 to move again. The third spring 26 is compressed again to align the air pipe 11 and the air hole 25, cooling the entire processing area and improving the workpiece processing yield. When the upper mold 1 is reset, it drives the telescopic bar 17 to rise on the slide 24, the air pipe 11 and the air hole 25 separate, the cooling gas in the processing area disappears, and at the same time, the telescopic bar 17 contacts the bottom side of the cam 18 again. The third spring 26 is compressed again, causing the processing area to spray multiple times to remove the debris at the bottom of the upper mold 1. Then the telescopic bar 17 and the cam 18 separate as the upper mold 1 rises. The third spring 26 performs elastic reset and pushes the telescopic bar 17 to reset. The air pipe 11 separates from the air hole 25 again, completing one punching process of the upper mold 1. Standby and second punching can be selected.

[0034] Furthermore, an air supply plate 13 is slidably connected to the bottom of the upper mold 1, and second cylinders 12 are fixedly connected to both sides of the bottom of the upper mold 1. A pressure plate 10 is suspended at the bottom of the second cylinder 12. A pad 8 is fixedly installed on the top of the lower mold 2, and a material ejection plate 9 is detachably connected to the top of the pad 8. The tops of the pressure plate 10 and the material ejection plate 9 fit together. A cutting tool is fixedly installed at the bottom of the air supply plate 13. Multiple air inlets 30 are opened around the pressure plate 10, and the air inlets 30 communicate with the interior of the pressure plate 10. Multiple air supply plates 13 are fixedly installed around the bottom of the air supply plate 13. The gas inside the air pipe 11 enters the upper mold 1 through the air hole 25. The upper mold 1 distributes the gas to the inside of each air rod 29. The top of the ejector plate 9 is used to place the material. When punching is required, the second cylinder 12 first drives the pressure plate 10 to cover and press the material. When the upper mold 1 descends, the cold air that is input into the upper mold 1 through the refrigerant transmission pipe connected to the air pipe 11 extends into the pressure plate 10 through the air rod 29 and then sends the gas into the bottom of the pressure plate 10 to cool the material processing area and the cutting tool, thereby improving the service life of the cutting tool.

[0035] Furthermore, a plurality of pressure plates 33 are uniformly and fixedly installed in a ring on the top of the shock-absorbing pad 7, and a conical roller 31 is vertically fixedly installed on each pressure plate 33. Simultaneously, a central block 32 is fixedly installed at the bottom center of the guide post 3. The bottom end of the central block 32 extends downward and is precisely inserted into the central gap formed by the plurality of conical rollers 31 arranged in a ring, allowing the inner surfaces of the conical rollers 31 to maintain contact with and abut against the circumferential outer wall of the central block 32. In addition, each pressure plate 33 is connected to a high-precision force sensor via internal wiring, forming an independent data acquisition unit.

[0036] When the upper die 1 moves downward during the stamping process, if the upper die 1 and the guide post 3 come into contact, the sidewall of the upper die 1 applies a radial compressive force to the conical rollers 31 arranged in a ring around it. This compressive force is transmitted to the pressure plate 33, causing the elastically designed pressure plate 33 to undergo measurable elastic deformation. The force sensor connected to each pressure plate 33 can collect pressure change data at the corresponding contact point in real time and at high frequency, and feed this data back to the central control system immediately.

[0037] By synchronously analyzing and processing multi-path force feedback data, the control system can achieve precise and dynamic regulation of the stamping pressure during the mold closing process. This closed-loop control mechanism ensures that the closing process of the upper mold 1 and the lower mold 2 is extremely smooth and controllable, thereby maintaining the positional accuracy of stamping at the micron level.

[0038] The system also compares real-time force feedback data with preset process pressure thresholds to dynamically adjust the output pressure of the first cylinder 6 driving the upper die, achieving adaptive process optimization. Specifically, if any force sensor data exhibits abnormal fluctuations, exceeds the safe range, or deviates significantly from the preset mode during the stamping process, the control system can immediately trigger a safety protocol, instructing the entire machine to automatically stop and issue an alarm. This design allows the equipment to interrupt the process before potential problems lead to batch scrapping of processed parts, facilitating timely equipment maintenance and troubleshooting. It significantly reduces the likelihood of subsequent processed products exhibiting dimensional errors, deformation, or other quality issues, improving the reliability of the production process and the product qualification rate.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stamping and forging die for metal processing, comprising a lower die (2), characterized in that: The lower mold (2) is fixedly connected to guide posts (3) around its top. Each guide post (3) is fitted with a spring (4). An upper mold (1) is slidably connected between multiple guide posts (3). Shock-absorbing pads (7) are fixedly installed around the bottom of the lower mold (2). Each guide post (3) is rotatably connected to a cam (18). A pair of bayonets are provided on one side of each cam (18). A second spring (20) is fixedly connected to each bayonet. A toothed plate (21) is fixedly connected to one end of the second spring (20). The guide post (3) is fixedly connected to the side of the guide post (3). A limiting plate (15) is fixedly installed, and a slider (16) is slidably connected to the limiting plate (15). The bottom side of the slider (16) has ratchet teeth that mesh with the toothed plate (21). A pair of extension columns (22) are fixedly connected to the top of the guide column (3). An adjusting plate (23) is slidably connected to the extension column (22). A pair of leveling blocks (14) are fixedly installed around the top of the upper mold (1). When the slider (16) rises, it drives the adjusting plate (23) to slide on the extension column (22), so that the adjusting plate (23) and the leveling block (14) abut against each other.

2. The stamping and forging die for hardware processing according to claim 1, characterized in that: The top of the slider (16) has a cross-shaped top plate structure, and the top of each slider (16) is in contact with the bottom of each adjusting plate (23). The planes of the bottom of the leveling block (14) and the top of the adjusting plate (23) are parallel to each other.

3. The stamping and forging die for hardware processing according to claim 2, characterized in that: The upper mold (1) is fixedly connected to the middle of both sides with protective rings (28). The top of the protective rings (28) is slidably connected to a first cylinder (6). The first cylinder (6) and the upper mold (1) are rotatably connected. An electromagnet (2801) is slidably connected inside the first cylinder (6). The bottom of the electromagnet (2801) is fixed inside the upper mold (1). The top of each first cylinder (6) is fixedly connected to a fixing plate (5). The bottom of the fixing plate (5) is flush with the bottom of the shock-absorbing pad (7).

4. The stamping and forging die for hardware processing according to claim 3, characterized in that: The cam (18) has multiple grooves (1801) on one side, and the toothed plate (21) has a protrusion that matches the grooves (1801) on one side. A counterweight (19) is fixedly installed on the cam (18), and a recessed area for reducing the counterweight is opened on one side of the top of the cam (18).

5. A stamping and forging die for hardware processing according to claim 4, characterized in that: The upper mold (1) has telescopic strips (17) slidably connected on both sides inside. The telescopic strips (17) have a limit groove at the top. One end of the telescopic strips (17) extends to the top of the guide post (3) and protrudes to the side above the cam (18). The upper mold (1) has a limit block (27) fixedly installed near the top of each telescopic strip (17) inside. A third spring (26) is fixedly connected between two telescopic strips (17). Air holes (25) are opened on each telescopic strip (17). Multiple air pipes (11) are fixedly connected to the outside of the upper mold (1).

6. The stamping and forging die for hardware processing according to claim 5, characterized in that: The upper mold (1) is slidably connected to an air supply plate (13) at its bottom. The upper mold (1) is fixedly connected to two sides of its bottom. A pressure plate (10) is suspended at the bottom of the second cylinder (12). A pad (8) is fixedly installed at the top of the lower mold (2). A material ejector plate (9) is detachably connected to the top of the pad (8). The tops of the pressure plate (10) and the material ejector plate (9) are aligned. A cutting tool is fixedly installed at the bottom of the air supply plate (13).

7. A stamping and forging die for hardware processing according to claim 6, characterized in that: The pressure plate (10) has multiple air inlets (30) around its perimeter. The air inlets (30) are connected to the interior of the pressure plate (10). Multiple air rods (29) are fixedly installed around the bottom of the air supply plate (13). The gas inside the air pipe (11) enters the upper mold (1) through the air hole (25), and the upper mold (1) distributes the gas to the interior of each air rod (29).

8. A stamping and forging die for hardware processing according to claim 7, characterized in that: The shock-absorbing pad (7) has multiple pressure plates (33) fixedly installed in a ring shape on its top. Each pressure plate (33) has a conical roller (31) fixedly installed on it. The guide post (3) has a central block (32) fixedly installed at its bottom. The bottom of the central block (32) extends between the multiple conical rollers (31), so that the multiple conical rollers (31) and the central block (32) abut against each other. Each pressure plate (33) is connected to a force sensor.

9. A stamping and forging die for hardware processing according to claim 8, characterized in that: Each of the guide posts (3) has a groove (24) on its surface that slides with the telescopic strip (17). The radius of the guide post (3) gradually increases from the top to the bottom, so that the groove (24) tends to drive the telescopic strip (17) to move into the mold (1) upward.

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