Network interface metal terminal precision progressive blanking forming device

Abstract

The application discloses a network interface metal terminal precision progressive blanking forming device, and relates to the technical field of blanking forming, which comprises a bottom plate, and the output end of a stamping cylinder is provided with a slow-pressure positioning piece connected with a limiting pressing plate; the bottom of the positioning plate is provided with a material discharging and cleaning piece connected with the top of the bottom plate. The slow-pressure positioning piece is arranged, the stamping cylinder is started, the electromagnet is energized by energizing the stamping cylinder, the connecting bin is driven to move downward synchronously through the positioning sleeve block and the first extension spring when the stamping cylinder is stretched, the limiting pressing plate presses the plate piece, the stamping cylinder is extruded by the splicing plate when moving downward, the stamping force borne by the plate piece is increased with the contraction of the second extension spring, the slow pressing of the plate material is realized, the instantaneous impact load of the convex die on the plate material is prevented from being too large, the cross-section burr of the plate material is prevented from being too large, and the precision of equipment processing is improved.

Description

Technical Field

[0001] This invention relates to the field of blanking and forming technology, specifically to a precision progressive blanking and forming device for network interface metal terminals. Background Technology

[0002] Network interface metal terminals are core components for achieving electrical signal conduction. Their dimensional accuracy and spring angle consistency directly determine the connector's insertion and removal reliability and contact resistance stability. Currently, network interface metal terminals are generally processed by stamping dies. Using copper alloy strip as raw material, the process involves multiple steps such as punching, partial blanking, bending, shaping, and final blanking to gradually form a terminal structure with contact springs. The punching process is used to process terminal positioning holes, clearance holes, and some contour features, while the bending process bends the punched sheet to form the terminal's contact spring arm and insertion guide structure.

[0003] In the blanking station, the punch applies an instantaneous impact load to the sheet metal. The sheet metal is prone to warping and shifting under violent impact, and the material separates by tearing. This results in large burrs and obvious corner collapse on the workpiece cross-section. Burrs remain at the terminal hole positions and contour edges, which not only increases the amount of subsequent grinding work, but also generates a large amount of metal chips and plating particles during the blanking and shearing process. The chips easily adhere to the bottom and side walls of the punch and are carried into the upper die area with the return stroke of the punch. When the punch is stamped again, the chips are pressed into the surface of the sheet metal, forming pits and indentations, which directly reduces the yield of terminals. Summary of the Invention

[0004] The purpose of this invention is to provide a precision progressive punching and forming apparatus for network interface metal terminals in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precision progressive blanking forming device for network interface metal terminals, comprising a base plate, a support guide rod mounted on the top of the base plate, a top plate disposed at the top of the support guide rod, a stamping cylinder disposed at the top of the top plate, a positioning plate disposed on the support guide rod below the top plate, a die disposed on the top of the positioning plate, a limiting pressure plate slidably connected to the support guide rod between the die and the top plate, a pressure-relieving positioning component connected to the limiting pressure plate disposed at the output end of the stamping cylinder, a punch disposed at the output end of the stamping cylinder through the pressure-relieving positioning component, and a discharge cleaning component connected to the top of the base plate disposed at the bottom of the positioning plate.

[0006] As a further embodiment of the present invention: the pressure-relieving positioning component includes a connecting chamber installed on the top of the limiting pressure plate. The top of the limiting pressure plate has a through groove located below and penetrating the limiting pressure plate. The extension end of the stamping cylinder extends to the inner side of the connecting chamber. The extension end of the stamping cylinder is connected to a splicing plate located inside the connecting chamber. An extrusion connecting chamber is movably sleeved on the outer side of the splicing plate. A positioning iron block located below the splicing plate is provided at the bottom of the inner wall of the extrusion connecting chamber. An electromagnet located above the positioning iron block is provided at the bottom of the splicing plate. A second telescopic spring located outside the electromagnet and connected to the bottom of the inner wall of the extrusion connecting chamber is provided at the bottom of the splicing plate. A positioning sleeve block located outside the extrusion connecting chamber is installed at the extension end of the stamping cylinder. A first telescopic spring connected to the top of the inner wall of the connecting chamber is provided at the bottom edge of the positioning sleeve block. The punch is installed at the bottom of the extrusion connecting chamber.

[0007] As a further embodiment of the present invention: the length and width of the through groove are equal to the length and width of the bottom of the inner wall of the connecting chamber.

[0008] As a further embodiment of the present invention: the electromagnet and the stamping cylinder are connected in series by a wire. After the stamping cylinder is fully retracted, the power is cut off, and at this time the support column and the stamping cylinder are simultaneously de-energized.

[0009] As a further aspect of the present invention: the inner diameter of the positioning sleeve is larger than the outer diameter of the extrusion chamber.

[0010] As a further embodiment of the present invention: when the stamping cylinder is in the retracted state, the bottom of the punch and the bottom of the limiting pressure plate are at the same horizontal height.

[0011] As a further embodiment of the present invention: the discharge cleaning component includes a support column installed on the top of the base plate and connected to the bottom of the positioning plate. A positioning frame is fixedly connected to the support column. An annular connecting plate is provided on the inner side of the positioning frame. An annular extrusion chamber is installed on the inner wall of the annular connecting plate. An L-shaped conduit extending to the outer side of the annular connecting plate is provided on the outer wall of the annular extrusion chamber. A telescopic cylinder located on one side of the support column is provided on the top of the base plate. A side connecting block is connected to the extension end of the telescopic cylinder. A fan is installed on one side of the side connecting block. A conical filter plate is installed on the top of the fan. A flexible hose connected to the L-shaped conduit is provided at the bottom of the fan. A connecting cylinder located below the fan is installed on the top of the base plate. A limiting rod extending to the top of the connecting cylinder and connected to the bottom of the fan is inserted into the inside of the connecting cylinder. A clamping plate located inside the connecting cylinder is provided at the bottom end of the limiting rod. A second contact piece located outside the limiting rod is provided on the top of the clamping plate. A first contact piece located above the second contact piece is installed inside the connecting cylinder.

[0012] As a further embodiment of the present invention: the center of the conical filter plate is coaxial with the center of the annular connecting plate, and the center of the annular connecting plate is coaxial with the center of the annular extrusion chamber.

[0013] As a further aspect of the present invention: the first contact is electrically connected to the fan via a wire, and the second contact is electrically connected to an external power supply via a wire.

[0014] As a further aspect of the present invention: when the telescopic cylinder is in the retracted state, the horizontal height of the top of the conical filter plate is less than the horizontal height of the bottom of the annular connecting plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. By setting a pressure-relieving positioning component, the stamping cylinder is activated. Energizing the stamping cylinder powers the electromagnet. When the stamping cylinder extends, it moves the connecting chamber downwards synchronously via the positioning sleeve and the first telescopic spring. At this time, the limiting pressure plate moves downwards along with the connecting chamber. When the limiting pressure plate contacts the workpiece, the stamping cylinder continues to move downwards, moving relative to the connecting chamber. The positioning sleeve then pulls the bottom of the first telescopic spring, applying tension to the connecting chamber, causing the limiting pressure plate to press against the workpiece. During this process, the bottom of the punch contacts the workpiece. As the stamping cylinder moves downwards, it compresses the second telescopic spring via the splicing plate, causing the pressing chamber to push the punch downwards under the force of the second telescopic spring. The stamping force on the workpiece then decreases as the second telescopic spring contracts. The process involves increasing pressure to gradually apply pressure to the sheet metal, preventing excessive instantaneous impact load from the punch and thus avoiding excessive burrs on the sheet metal surface. This improves the precision of the equipment's processing. As the electromagnet moves downward, it contacts the positioning block. When the stamping cylinder moves downward, it presses the punch through the splicing plate, electromagnet, and positioning block, thus punching the sheet metal. When the stamping cylinder retracts, the connecting chamber moves upward with it. At this time, the electromagnet is in contact with the positioning block, and the second telescopic spring is compressed. After the stamping cylinder fully retracts, it is de-energized, and the electromagnet is de-energized. This allows the extrusion connecting chamber to quickly reset under the elastic restoring force of the second telescopic spring. At this time, the debris attached to the punch will separate from the punch under the action of inertia, further improving the precision of subsequent terminal punching.

[0017] 2. By setting up a discharge cleaning component, when the stamping cylinder is fully extended, the bottom of the punch penetrates the die and the positioning plate and extends to the inner side of the annular connecting plate. At this time, the telescopic cylinder is activated, and its operation pushes the side connecting block upward, thereby bringing the blower closer to the bottom of the annular connecting plate. The limit rod then moves upward along with the blower, causing the clamping plate to move upward as well. When the telescopic cylinder is fully extended, the second contact piece contacts the first contact piece, and the blower is powered on, allowing airflow through the hose and L-shaped duct. The die enters the annular extrusion chamber, creating an annular air wall around the punch and a negative pressure around the conical filter plate. This negative pressure separates the debris from the bottom of the punch. As the punch moves upward, the annular air wall ejected from the annular extrusion chamber cleans the area around the punch, causing the debris to fall to the top of the conical filter plate. This cleans the conical filter plate and prevents debris from remaining at the bottom and around it, which could affect the stamping effect of subsequent sheet metal. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the bottom structure of the limiting pressure plate of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the connecting compartment of the present invention;

[0021] Figure 4 This is a schematic diagram showing the connection between the support column and the annular connecting plate of the present invention;

[0022] Figure 5 This is a schematic diagram showing the connection between the annular connecting plate and the annular extrusion chamber of the present invention;

[0023] Figure 6 This is a schematic diagram of the internal structure of the annular connecting plate of the present invention;

[0024] Figure 7 This is a schematic diagram of the internal structure of the connecting cylinder of the present invention;

[0025] Figure 8 This is a partial cross-sectional view of the conical filter plate of the present invention.

[0026] In the diagram: 1. Base plate; 2. Support guide rod; 3. Top plate; 4. Stamping cylinder; 5. Positioning plate; 6. Die; 7. Connecting cylinder; 8. Support column; 9. Positioning frame; 10. Limiting pressure plate; 11. Connecting chamber; 12. Through groove; 13. Punch; 14. Positioning sleeve block; 15. First telescopic spring; 16. Extrusion connecting chamber; 17. Splicing plate; 18. Electromagnet; 19. Second telescopic spring; 20. Positioning iron block; 21. Side connecting block; 22. Telescopic cylinder; 23. Conical filter plate; 24. Annular connecting plate; 25. L-shaped guide tube; 26. Hose; 27. Fan; 28. Annular extrusion chamber; 29. ​​Limiting insertion rod; 30. First contact piece; 31. Clamping plate; 32. Second contact piece. 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] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0029] Please see Figures 1 to 8In this embodiment of the invention, a precision progressive punching forming device for network interface metal terminals includes a base plate 1, a support guide rod 2 mounted on the top of the base plate 1, a top plate 3 mounted on the top of the support guide rod 2, a punching cylinder 4 mounted on the top of the top plate 3, a positioning plate 5 mounted on the support guide rod 2 below the top plate 3, a die 6 mounted on the top of the positioning plate 5, a limiting pressure plate 10 slidably connected to the support guide rod 2 between the die 6 and the top plate 3, a pressure-relieving positioning component connected to the limiting pressure plate 10 at the output end of the punching cylinder 4, a punch 13 connected to the output end of the punching cylinder 4 through the pressure-relieving positioning component, and a discharge cleaning component connected to the top of the base plate 1 at the bottom of the positioning plate 5.

[0030] In this embodiment, the sheet metal to be processed is first placed on the top of the die 6. Then, the stamping cylinder 4 is activated. Through the cooperation of the stamping cylinder 4 and the pressure-relieving positioning component, the limiting plate 10 contacts the top of the sheet metal. The limiting plate 10 presses and limits the sheet metal. As the stamping cylinder 4 continues to extend, the punch 13 will punch the sheet metal. During this process, the pressure-relieving positioning component applies slow pressure to the punch 13 to prevent the sheet metal from warping due to violent impact. At this time, the part of the sheet metal being punched will drop off. The waste material separated from the sheet metal will fall to the top of the base plate 1 through the positioning plate 5. At the same time, the bottom of the punch 13 extends to the bottom of the positioning plate 5. At this time, the discharge cleaning component is activated to clean the surface of the punch 13 to prevent debris from adhering to the bottom and side walls of the punch 13 and affecting the subsequent stamping of the sheet metal.

[0031] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 The pressure relief positioning component includes a connecting chamber 11 installed on the top of the limiting pressure plate 10. The top of the limiting pressure plate 10 has a through groove 12 located below and penetrating the limiting pressure plate 10. The extension end of the stamping cylinder 4 extends to the inside of the connecting chamber 11. The extension end of the stamping cylinder 4 is connected to a splicing plate 17 located inside the connecting chamber 11. An extrusion connecting chamber 16 is movably sleeved on the outside of the splicing plate 17. A positioning iron block located below the splicing plate 17 is provided at the bottom of the inner wall of the extrusion connecting chamber 16. 20. An electromagnet 18 is provided at the bottom of the splicing plate 17 above the positioning iron block 20. A second telescopic spring 19 is provided at the bottom of the splicing plate 17 outside the electromagnet 18 and connected to the bottom of the inner wall of the extrusion chamber 16. A positioning sleeve 14 is installed at the extension end of the stamping cylinder 4 outside the extrusion chamber 16. A first telescopic spring 15 is provided at the bottom edge of the positioning sleeve 14 and connected to the top of the inner wall of the connecting chamber 11. The punch 13 is installed at the bottom of the extrusion chamber 16.

[0032] The length and width of the through groove 12 are equal to the length and width of the bottom of the inner wall of the connecting chamber 11. The electromagnet 18 and the stamping cylinder 4 are connected in series by a wire. When the stamping cylinder 4 is fully retracted, it is de-energized. At this time, the support column 8 and the stamping cylinder 4 are de-energized synchronously. The inner diameter of the positioning sleeve block 14 is larger than the outer diameter of the extrusion connecting chamber 16. When the stamping cylinder 4 is in the retracted state, the bottom of the punch 13 and the bottom of the limiting pressure plate 10 are at the same horizontal height.

[0033] In this embodiment, the stamping cylinder 4 is activated, and the electromagnet 18 is energized by energizing the stamping cylinder 4. When the stamping cylinder 4 extends, it drives the connecting chamber 11 to move downward synchronously through the positioning sleeve 14 and the first telescopic spring 15. At this time, the limiting pressure plate 10 moves downward along with the connecting chamber 11. When the limiting pressure plate 10 contacts the plate, the stamping cylinder 4 continues to move downward, and the stamping cylinder 4 moves relative to the connecting chamber 11. At this time, the positioning sleeve 14 will move the first telescopic spring 15. The bottom of the telescopic spring 15 is pulled to apply tension to the connecting chamber 11, thereby causing the limiting pressure plate 10 to press against the plate. During this process, the bottom of the punch 13 will contact the plate. At this time, when the stamping cylinder 4 moves downward, it will squeeze the second telescopic spring 19 through the splicing plate 17, thereby causing the extrusion connecting chamber 16 to push the punch 13 downward under the elastic force of the second telescopic spring 19. At this time, the stamping force on the plate will be reduced as the second telescopic spring 19 contracts. The pressure is increased to achieve slow pressure on the sheet metal, preventing excessive instantaneous impact load from the punch 13, which could cause excessive burrs on the sheet metal cross-section, thereby improving the precision of the equipment processing. As the electromagnet 18 moves downward, it will contact the positioning block 20. At this time, when the stamping cylinder 4 moves downward, it will press the punch 13 through the splicing plate 17, electromagnet 18, and positioning block 20, thus achieving the punching of the sheet metal. When the stamping cylinder 4 retracts, the connecting chamber 11 will move upward with the stamping cylinder 4. At this time, the electromagnet 18 will be in contact with the positioning block 20, and the second telescopic spring 19 will be in a compressed state. After the stamping cylinder 4 is fully retracted, it will be de-energized. At this time, the electromagnet 18 will be de-energized, so that the extrusion connecting chamber 16 will quickly return to its original position under the elastic restoring force of the second telescopic spring 19. At this time, the debris attached to the punch 13 will be separated from the punch 13 under the action of inertia, further improving the precision of subsequent terminal punching.

[0034] Please refer to this carefully. Figure 4 , Figure 5 , Figure 6 , Figure 7The discharge cleaning component includes a support column 8 installed on the top of the base plate 1 and connected to the bottom of the positioning plate 5. A positioning frame 9 is fixedly connected to the support column 8. An annular connecting plate 24 is provided on the inner side of the positioning frame 9. An annular extrusion chamber 28 is installed on the inner wall of the annular connecting plate 24. An L-shaped guide tube 25 extending to the outer side of the annular connecting plate 24 is provided on the outer wall of the annular extrusion chamber 28. A telescopic cylinder 22 located on one side of the support column 8 is provided on the top of the base plate 1. A side connecting block 21 is connected to the extended end of the telescopic cylinder 22. A fan 27 is installed on one side of the side connecting block 21. A conical filter plate 23 is installed on the top of the fan 27. A flexible hose 26 connected to an L-shaped duct 25 is provided at the bottom of the fan 27. A connecting cylinder 7 located below the fan 27 is installed on the top of the base plate 1. A limiting rod 29 extending to the top of the connecting cylinder 7 and connected to the bottom of the fan 27 is inserted inside the connecting cylinder 7. A retaining plate 31 located inside the connecting cylinder 7 is provided at the bottom end of the limiting rod 29. A second contact piece 32 located outside the limiting rod 29 is provided at the top of the retaining plate 31. A first contact piece 30 located above the second contact piece 32 is installed inside the connecting cylinder 7.

[0035] The center of the conical filter plate 23 is coaxial with the center of the annular connecting plate 24, and the center of the annular connecting plate 24 is coaxial with the center of the annular extrusion chamber 28. The first contact piece 30 is electrically connected to the blower 27 through a wire, and the second contact piece 32 is electrically connected to an external power supply through a wire. When the telescopic cylinder 22 is in the retracted state, the horizontal height of the top of the conical filter plate 23 is less than the horizontal height of the bottom of the annular connecting plate 24.

[0036] In this embodiment, when the stamping cylinder 4 is fully extended, the bottom of the punch 13 penetrates the die 6 and the positioning plate 5 and extends to the inner side of the annular connecting plate 24. At this time, the telescopic cylinder 22 is activated, and the operation of the telescopic cylinder 22 pushes the side connecting block 21 upward, thereby bringing the blower 27 closer to the bottom of the annular connecting plate 24. At this time, the limiting rod 29 will move the clamping plate 31 upward along with the upward movement of the blower 27. When the telescopic cylinder 22 is fully extended, the second contact piece 32 contacts the first contact piece 30. At this time, the blower 27 is powered on and operates, thereby allowing airflow to pass through the hose 26 and the L-shaped guide. Pipe 25 enters the annular extrusion chamber 28, thereby forming an annular air wall around the punch 13 and creating a negative pressure around the conical filter plate 23. The negative pressure around the conical filter plate 23 separates the debris at the bottom of the punch 13 from the punch 13. When the punch 13 moves upward, the annular air wall ejected from the annular extrusion chamber 28 cleans the area around the punch 13, causing the debris around the punch 13 to fall to the top of the conical filter plate 23. This cleans the conical filter plate 23 and prevents debris from remaining at the bottom and around the conical filter plate 23, which would affect the stamping effect of subsequent plates.

[0037] The working principle of this invention is as follows: First, the workpiece to be processed is placed on the top of the die 6. Then, the stamping cylinder 4 is activated. By energizing the stamping cylinder 4, the electromagnet 18 is energized. When the stamping cylinder 4 extends, it drives the connecting chamber 11 to move downward synchronously through the positioning sleeve 14 and the first telescopic spring 15. At this time, the limiting pressure plate 10 moves downward with the connecting chamber 11. When the limiting pressure plate 10 contacts the workpiece, the stamping cylinder 4 continues to move downward, and the stamping cylinder 4 moves relative to the connecting chamber 11. At this time, the positioning sleeve 14 pulls the bottom of the first telescopic spring 15, thereby causing the connecting chamber 11 to be under tension, so that the limiting pressure plate 10 presses the workpiece. During this process, the bottom of the punch 13 will contact the workpiece. When the stamping cylinder 4 moves downward, it will compress the second telescopic spring 19 through the splicing plate 17. This causes the extrusion chamber 16 to push the punch 13 downward under the elastic force of the second telescopic spring 19. At this time, the stamping force on the sheet metal will increase with the contraction of the second telescopic spring 19, thereby achieving slow pressure on the sheet metal and preventing the punch 13 from applying too large an instantaneous impact load to the sheet metal, which would cause the burrs on the sheet metal section to be too large, thus improving the precision of the equipment processing. As the electromagnet 18 moves downward, it will come into contact with the positioning iron block 20. At this time, when the stamping cylinder 4 moves downward, it will press the punch 13 through the splicing plate 17, the electromagnet 18, and the positioning iron block 20, thus realizing the punching of the sheet metal. When the stamping cylinder 4 is fully extended, the bottom of the punch 13 penetrates the die 6 and the positioning plate 5 and extends to the inner side of the annular connecting plate 24. At this time, the telescopic cylinder 22 is activated, and the operation of the telescopic cylinder 22 pushes the side connecting block 21 upward, thereby bringing the blower 27 closer to the bottom of the annular connecting plate 24. At this time, the limit rod 29 will move the clamping plate 31 upward along with the upward movement of the blower 27. When the telescopic cylinder 22 is fully extended, the second contact piece 32 contacts the first contact piece 30. At this time, the blower 27 is powered on and operates, so that the airflow enters the annular extrusion chamber 28 through the hose 26 and the L-shaped duct 25, thereby forming an annular air wall around the punch 13. At the same time, a negative pressure state is formed around the conical filter plate 23. The negative pressure effect around the punch 13 separates the debris from the bottom of the punch 13. When the punch 13 moves upward, the annular air wall ejected by the annular extrusion chamber 28 cleans the area around the punch 13, causing the debris around the punch 13 to fall to the top of the conical filter plate 23. This cleans the conical filter plate 23 and prevents debris from remaining at the bottom and around the conical filter plate 23, which would affect the stamping effect of the subsequent sheet metal. After the stamping cylinder 4 is fully retracted, it is de-energized. At this time, the electromagnet 18 is de-energized, so that the extrusion chamber 16 can quickly return to its original position under the elastic restoring force of the second telescopic spring 19. At this time, the debris attached to the punch 13 will separate from the punch 13 under the action of inertia, further improving the precision of the subsequent terminal punching.

[0038] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A precision progressive punching forming device for network interface metal terminals, comprising a base plate (1), characterized in that, A support guide rod (2) is installed on the top of the base plate (1). A top plate (3) is provided at the top of the support guide rod (2). A stamping cylinder (4) is provided on the top of the top plate (3). A positioning plate (5) is provided on the support guide rod (2) below the top plate (3). A die (6) is installed on the top of the positioning plate (5). A limiting pressure plate (10) is slidably connected on the support guide rod (2) between the die (6) and the top plate (3). A pressure-relieving positioning component connected to the limiting pressure plate (10) is provided at the output end of the stamping cylinder (4). A punch (13) is connected to the output end of the stamping cylinder (4) through the pressure-relieving positioning component. A discharge cleaning component connected to the top of the base plate (1) is provided at the bottom of the positioning plate (5).

2. The precision progressive punching and forming apparatus for network interface metal terminals according to claim 1, characterized in that, The pressure relief positioning component includes a connecting chamber (11) installed on the top of the limiting pressure plate (10). The top of the limiting pressure plate (10) has a through groove (12) located below and penetrating the limiting pressure plate (10). The extension end of the stamping cylinder (4) extends to the inside of the connecting chamber (11). The extension end of the stamping cylinder (4) is connected to a splicing plate (17) located inside the connecting chamber (11). An extrusion connecting chamber (16) is movably sleeved on the outside of the splicing plate (17). A positioning iron block located below the splicing plate (17) is provided at the bottom of the inner wall of the extrusion connecting chamber (16). (20) An electromagnet (18) is provided at the bottom of the splicing plate (17) above the positioning iron block (20). A second telescopic spring (19) is provided at the bottom of the splicing plate (17) outside the electromagnet (18) and connected to the bottom of the inner wall of the extrusion chamber (16). A positioning sleeve (14) is installed at the extension end of the stamping cylinder (4) outside the extrusion chamber (16). A first telescopic spring (15) is provided at the bottom edge of the positioning sleeve (14) and connected to the top of the inner wall of the connecting chamber (11). The punch (13) is installed at the bottom of the extrusion chamber (16).

3. The precision progressive punching and forming device for network interface metal terminals according to claim 2, characterized in that, The length and width of the through groove (12) are equal to the length and width of the bottom of the inner wall of the connecting chamber (11).

4. The precision progressive punching and forming device for network interface metal terminals according to claim 2, characterized in that, The electromagnet (18) and the stamping cylinder (4) are connected in series by a wire. After the stamping cylinder (4) is fully retracted, the power is cut off. At this time, the support column (8) and the stamping cylinder (4) are simultaneously de-energized.

5. The precision progressive punching and forming apparatus for network interface metal terminals according to claim 2, characterized in that, The inner diameter of the positioning sleeve (14) is larger than the outer diameter of the extrusion chamber (16).

6. The precision progressive punching and forming apparatus for network interface metal terminals according to claim 2, characterized in that, When the stamping cylinder (4) is in the retracted state, the bottom of the punch (13) and the bottom of the limiting pressure plate (10) are at the same horizontal height.

7. The precision progressive punching and forming apparatus for network interface metal terminals according to claim 2, characterized in that, The discharge cleaning component includes a support column (8) installed on the top of the base plate (1) and connected to the bottom of the positioning plate (5). A positioning frame (9) is fixedly connected to the support column (8). An annular connecting plate (24) is provided on the inner side of the positioning frame (9). An annular extrusion chamber (28) is installed on the inner wall of the annular connecting plate (24). An L-shaped conduit (25) extending to the outer side of the annular connecting plate (24) is provided on the outer wall of the annular extrusion chamber (28). A telescopic cylinder (22) located on one side of the support column (8) is provided on the top of the base plate (1). A side connecting block (21) is connected to the extension end of the telescopic cylinder (22). A fan (27) is installed on one side of the side connecting block (21). A conical filter plate (23) is installed on the top of the fan (27). A hose (26) connected to an L-shaped duct (25) is provided at the bottom of the fan (27). A connecting cylinder (7) located below the fan (27) is installed on the top of the base plate (1). A limiting rod (29) extending to the top of the connecting cylinder (7) and connected to the bottom of the fan (27) is inserted inside the connecting cylinder (7). A clamping plate (31) located inside the connecting cylinder (7) is provided at the bottom end of the limiting rod (29). A second contact piece (32) located outside the limiting rod (29) is provided at the top of the clamping plate (31). A first contact piece (30) located above the second contact piece (32) is installed inside the connecting cylinder (7).

8. The precision progressive punching and forming apparatus for network interface metal terminals according to claim 7, characterized in that, The center of the conical filter plate (23) is coaxial with the center of the annular connecting plate (24), and the center of the annular connecting plate (24) is coaxial with the center of the annular extrusion chamber (28).

9. A precision progressive punching and forming apparatus for network interface metal terminals according to claim 7, characterized in that, The first contact (30) is electrically connected to the fan (27) via a wire, and the second contact (32) is electrically connected to an external power supply via a wire.

10. A precision progressive punching and forming apparatus for network interface metal terminals according to claim 7, characterized in that, When the telescopic cylinder (22) is in the retracted state, the horizontal height of the top of the conical filter plate (23) is less than the horizontal height of the bottom of the annular connecting plate (24).

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