A bright section part stamping die

Abstract

The utility model discloses a kind of bright section part stamping processing die, it is related to stamping processing die technical field, including lower die mechanism and upper die mechanism, lower die mechanism includes lower die holder, the upper side of lower die holder is equipped with lower backing plate, the upper side of lower backing plate is equipped with lower die plate, the upper side of lower die plate is equipped with two rows of material guiding vertical holes, lower die plate upper side is sequentially provided with guiding punching area, cutting profile area one, cutting profile area two, chamfer area one, chamfer area two, pre-bending area, fine bending area, angle shaping area, cutting profile area three, chamfer area three, pre-punching area, fine punching area, chamfer area four, product area and cutting waste area from left to right.The bright section part stamping processing die, first pre-punching, aperture is smaller, then fine punching, fine punching is according to drawing requirement setting punch diameter, second punching, since the metal that stamping machine needs to cut is only thin annular, the power of stamping can form bright section.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a stamping die for parts with bright cross-sections. Background Technology

[0002] When punching holes in parts, the process is usually completed in one pass using a stamping method. However, when dealing with parts with high thickness and hardness, this punching method results in burrs or collapsed corners on the inner wall of the hole. If a bright cross-section is required on the inner wall of the hole on the part, additional processing is needed, which affects the processing efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a stamping die for bright cross-section parts. First, a pre-punch is performed with a small hole diameter, and then a fine punch is performed. During the fine punch, the punch diameter is set according to the drawing requirements. During the second punch, since the metal to be cut off by the stamping machine is only a thin ring, the stamping force can form a bright cross-section with no burrs or collapsed corners, and the cut is very neat and flat, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a stamping die for bright cross-section parts, comprising: The lower die mechanism includes a lower die base, a lower backing plate, and a lower die template. The lower backing plate is installed on the upper side of the lower die base, and the lower die template is installed on the upper side of the lower backing plate. The upper side of the lower die template has two rows of guide vertical holes. From left to right, the upper side of the lower die template between the two rows of guide vertical holes has the following areas arranged in sequence: guide punching area, cutting shape area 1, cutting shape area 2, chamfering area 1, chamfering area 2, pre-bending area, fine bending area, angle shaping area, cutting shape area 3, chamfering area 3, pre-punching area, fine punching area, chamfering area 4, product dropping area, and waste cutting area. The upper mold mechanism is installed above the lower mold plate, and the bottom of the upper mold mechanism is connected to the top of the lower mold base through a stamping guide assembly.

[0005] The upper die mechanism is driven up and down by the hydraulic cylinder of the stamping equipment. The strip material is driven by an external drive component, moving from left to right between the bottom of the upper die mechanism and the top of the lower die plate. Each time, the strip material moves one processing area to the right. The strip material passes through the following areas in sequence: guide punching area, cutting area 1, cutting area 2, chamfering area 1, chamfering area 2, pre-bending area, fine bending area, angle shaping area, cutting area 3, chamfering area 3, pre-punching area, fine punching area, chamfering area 4, product dropping area, and scrap cutting area. At the guide punching area, it is guided by the stamped out strip. The feed distance from left to right of the conveyor belt can be accurately detected with the help of the guide hole and the misfeed detection pin during each subsequent movement. Then, the material undergoes two rounds of cutting in the outer shape area (section one and section two) to cut out the main body of the part with a bright cross-section, forming the protrusion that needs to be bent and punched. The cut edges are then chamfered in chamfering areas one and two. Finally, the area to be punched is pre-bent and fine-bent in the pre-bending and fine-bending areas, with two orderly bending operations to avoid damage at the bending points. The angle shaping area is then folded in half. The angle of the curved section is corrected, and then the other two corner notches are removed through the three-pair cutting area. The chamfered edges are then chamfered using the three-pair chamfered area. The pre-punching area performs the first punching process on the protruding part of the bent section of the bright cross-section part. This step punches out a pre-punched circular piece. Then, the fine punching area performs a second punching process on the first hole. This step punches out a fine punched circular sleeve. Because the fine punched circular sleeve is a relatively thin annular structure, the punching force can form a bright cross-section hole and chamfer. In Zone 4, the final chamfering is performed. In the product dropping area, the already stamped bright section parts are stamped off the strip. The bright section parts fall through the dropping holes on the lower die base, lower backing plate, and lower template. In the scrap cutting area, the remaining strip is cut off at both ends. The right end of the strip forms a scrap plate that falls off, preventing the right end of the strip from continuing to move to the right and creating greater pressure that could cause the middle of the strip to lift up. The small scrap plate is also easier to handle. The stamping guide assembly makes the upper die mechanism move up and down more stably during stamping.

[0006] Furthermore, the upper die mechanism includes an upper die base, an upper backing plate, an upper clamping plate, a stop plate, and an anti-detachment plate. The upper backing plate is installed at the bottom of the upper die base, the upper clamping plate is installed at the bottom of the upper backing plate, the stop plate is installed on the lower side of the upper clamping plate, and the anti-detachment plate is installed at the bottom of the stop plate. The upper die base, upper backing plate, and upper clamping plate constitute the main body of the upper die mechanism. The stop plate and anti-detachment plate facilitate the smooth separation of the strip from the punch at the bottom of the upper die base after stamping.

[0007] Furthermore, it also includes a pre-punching punch and a fine punch. The top end of the pre-punching punch is fixedly connected to the bottom of the upper die base at the position corresponding to the pre-punching area, and the top end of the fine punch is fixedly connected to the bottom of the upper die base at the position corresponding to the fine punching area. The fine punch passes through the upper pad plate and the upper clamping plate respectively. The stop plate and the anti-detachment plate are provided with hollow grooves corresponding to the pre-punching punch and the fine punch. The lower die plate is provided with a first waste discharge hole that cooperates with the pre-punching punch, and the lower die plate is also provided with a second waste discharge hole that cooperates with the fine punch. The bottom diameter of the fine punch is larger than the bottom diameter of the pre-punching punch. When the upper die mechanism is pressed downwards under control, the pre-punching punch, in conjunction with scrap discharge hole one, punches out the protruding part of the bright cross-section part through the pre-punching hole and drops out a round piece. The pre-punching hole drop round piece falls out from scrap discharge hole one, forming a rough hole. In the next step, the fine punch punch, in conjunction with scrap discharge hole two, punches out the fine punch drop round piece again, punching out a fine punch drop round sleeve. A bright cross-section hole is processed on the protruding part of the bright cross-section part, and the fine punch drop round sleeve falls out from scrap discharge hole two.

[0008] Furthermore, it also includes a strip feeding guide assembly, which comprises a support, screws, and guide side strips. The support is fixedly connected to the upper left side of the lower die base, and two transverse guide side strips are fixedly connected to the front and rear ends of the upper side of the support by screws. The support is used to support the bottom left end of the strip, and the screws are used to install the guide side strips. The two guide side strips limit the front and rear sides of the strip, ensuring stable feeding.

[0009] Furthermore, it also includes a punching slot and a guide hole punch. A punching slot is provided on the lower template at the position of the guide punching area, and a guide hole punch is installed on the bottom of the upper clamping plate corresponding to the position of the punching slot. As the upper clamping plate moves down, the guide hole punch, in conjunction with the punching slot, can punch guide holes for the material strip at equal intervals laterally on the front and rear sides.

[0010] Furthermore, it also includes a strip positioning and guiding mechanism, which comprises a guide post, a strip annular guide groove, and a pressure-bearing buffer assembly. A guide post is vertically slidably installed within the guide vertical hole. The guide post has an annular guide groove on its top outer periphery, and the bottom end of the guide post is connected to the pressure-bearing buffer assembly. The strip is located between the tops of the two rows of guide posts, with its front and rear sides positioned within corresponding strip annular guide grooves. During stamping, the top of the guide post is pressurized, causing the pressure-bearing buffer assembly to shorten, retracting the guide post into the guide vertical hole. The strip then approaches the various processing areas on the upper side of the lower die for stamping. After stamping, the upper die mechanism moves upward, and the pressure-bearing buffer assembly pushes the guide post upward to reset, allowing the bottom of the strip to leave the various processing areas on the upper side of the lower die. This prevents the shape and structure of the processing areas on the upper side of the lower die from affecting the smooth rightward movement of the strip, facilitating continuous stamping operations.

[0011] Furthermore, it also includes a waste cutting module, which comprises a lower cutting seat and an upper cutting blade. Two lower cutting seats are respectively positioned on the upper side of the lower template at the front and rear sides of the waste cutting area. Two upper cutting blades are respectively installed on the front and rear sides of the right end of the upper clamping plate. The left sides of the two upper cutting blades are respectively vertically aligned with the right sides of the two lower cutting seats. As the upper clamping plate moves downwards and approaches the lower cutting seats, the front and rear sides of the strip are positioned between the lower cutting seats and the upper cutting blades. The lower cutting seats and upper cutting blades cut the front and rear sides of the strip. Since the middle area of ​​the strip has already been stamped with a bright cross-section part to form a hollow area, the right end of the strip is completely cut off, forming a small waste plate that falls off.

[0012] Compared with existing technologies, the beneficial effects of this bright cross-section part stamping die are: The die for stamping bright cross-section parts first pre-punches the bright cross-section parts with a small hole diameter, and then performs fine punching. During fine punching, the punching diameter is set according to the drawing requirements. During the second punching, since the metal to be cut off by the stamping machine is only a thin ring, the stamping force can form a bright cross-section with no burrs or collapsed corners, and is very neat and flat. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the lower template structure of this utility model; Figure 3 This is a schematic diagram of the structure of the material belt positioning and guiding mechanism of this utility model; Figure 4 This is a schematic diagram of the structure of the bright cross-section part processed by this utility model; In the diagram: 1. Lower die mechanism, 11. Lower die base, 12. Lower backing plate, 13. Lower template, 1301. Guide punching area, 1302. Cutting outline area one, 1303. Cutting outline area two, 1304. Chamfering area one, 1305. Chamfering area two, 1306. Pre-bending area, 1307. Fine bending area, 1308. Angle shaping area, 1309. Cutting outline area three, 1310. Chamfering area three, 1311. Pre-punching area, 1312. Fine punching area, 1313. Chamfering area four, 1314. Product dropping area, 1315. Scrap cutting area, 14. Lower pad, 15. Punching through slot, 2. Upper die mechanism, 21. Upper die base, 22. Upper backing plate, 23. Upper... Clamping plate, 24 stop plate, 25 anti-detachment plate, 26 guide hole punch, 3 stamping guide assembly, 31 guide post, 32 guide sleeve, 4 material strip feeding guide assembly, 41 support, 42 screw, 43 guide side stop strip, 5 material strip positioning guide mechanism, 51 guide post, 52 material strip annular guide groove, 53 sliding sleeve, 54 sliding column, 55 mounting base, 56 compression spring, 6 waste cutting module, 61 lower cutting seat, 62 upper cutting knife, 7 material strip, 71 material strip guide hole, 8 bright cross-section parts, 81 pre-punched hole dropping round piece, 82 fine punched hole dropping round sleeve, 83 bright cross-section hole, 9 pre-punched hole punch, 10 fine punched hole punch. Detailed Implementation

[0014] 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.

[0015] Example 1, please refer to Figures 1 to 4 This utility model provides a technical solution: a stamping die for a bright cross-section part, including a lower die mechanism 1 and an upper die mechanism 2.

[0016] The lower die mechanism 1 includes a lower die base 11, a lower backing plate 12, and a lower die template 13. The lower backing plate 12 is installed on the upper side of the lower die base 11, and the lower die template 13 is installed on the upper side of the lower backing plate 12. Two rows of guide vertical holes are opened on the upper side of the lower die template 13. From left to right, the lower die template 13 is provided with the following areas: a guide punching area 1301, a first cutting area 1302, a second cutting area 1303, a first chamfering area 1304, a second chamfering area 1305, a pre-bending area 1306, a fine bending area 1307, an angle shaping area 1308, a third cutting area 1309, a third chamfering area 1310, a pre-punching area 1311, a fine punching area 1312, a fourth chamfering area 1313, a product dropping area 1314, and a waste cutting area 1315.

[0017] The lower mold mechanism 1 also includes lower support feet 14. Six lower support feet 14 are arranged horizontally and equally at the bottom of the lower mold base 11. The lower support feet 14 are used to support the lower mold base 11.

[0018] The upper mold mechanism 2 is installed above the lower mold plate 13, and the bottom of the upper mold mechanism 2 is connected to the top of the lower mold base 11 through the stamping guide assembly 3.

[0019] The upper die mechanism 2 includes an upper die base 21, an upper backing plate 22, an upper clamping plate 23, a stop plate 24, and a release plate 25. The upper backing plate 22 is installed at the bottom of the upper die base 21, the upper clamping plate 23 is installed at the bottom of the upper backing plate 22, the stop plate 24 is installed on the lower side of the upper clamping plate 23, and the release plate 25 is installed at the bottom of the stop plate 24. The upper die base 21, the upper backing plate 22, and the upper clamping plate 23 constitute the main body of the upper die mechanism 2. The stop plate 24 and the release plate 25 facilitate the smooth separation of the strip 7 from the punch at the bottom of the upper die base 21 after stamping.

[0020] The stamping guide assembly 3 includes guide pillars 31 and guide sleeves 32. Four vertical guide pillars 31 are fixedly connected to the bottom four corners of the upper die base 21, and four vertical guide sleeves 32 are provided at the top four corners of the lower die base 11. The inner top of the four guide sleeves 32 is slidably connected to the bottom of the corresponding guide pillars 31.

[0021] It also includes a pre-punching punch 9 and a fine punch 10. The top of the pre-punching punch 9 is fixedly connected to the bottom of the upper die base 21 at the position corresponding to the pre-punching area 1311. The top of the fine punch 10 is fixedly connected to the bottom of the upper die base 21 at the position corresponding to the fine punch area 1312. The fine punch 10 passes through the upper pad 22 and the upper clamping plate 23 respectively. The stop plate 24 and the anti-detachment plate 25 are provided with hollow grooves corresponding to the pre-punching punch 9 and the fine punch 10. The lower die plate 13 is provided with a waste discharge hole 1 that cooperates with the pre-punching punch 9. The lower die plate 13 is also provided with a waste discharge hole 2 that cooperates with the fine punch 10. The bottom diameter of the fine punch 10 is larger than the bottom diameter of the pre-punching punch 9. When the upper die mechanism 2 is pressed downwards under control, the pre-punching punch 9, in conjunction with the scrap discharge hole one, punches the protruding part of the bright cross-section part 8 out of the pre-punching hole drop disc 81. The pre-punching hole drop disc 81 falls out of the scrap discharge hole one, forming a rough hole. In the next step, the fine punch punch 10, in conjunction with the scrap discharge hole two, punches the pre-punching hole drop disc 81 again, punching out the fine punch drop disc 82. A bright cross-section hole 83 is processed on the protruding part of the bright cross-section part 8. The fine punch drop disc 82 falls out from the scrap discharge hole two.

[0022] It also includes a punching slot 15 and a guide punch 26. The punching slot 15 is provided on the lower template 13 at the position of the guide punching area 1301, and the guide punch 26 is installed on the bottom of the upper clamping plate 23 at the position corresponding to the punching slot 15. As the upper clamping plate 23 moves down, the guide punch 26, in conjunction with the punching slot 15, can punch guide holes 71 of the material strip 7 at equal distances on the front and rear sides.

[0023] It also includes a material strip positioning and guiding mechanism 5, which includes a guide post 51, a material strip annular guide groove 52 and a pressure-bearing buffer assembly. The guide post 51 is vertically slidably installed in the guide vertical hole. The material strip annular guide groove 52 is opened on the outer periphery of the top of the guide post 51. The bottom end of the guide post 51 is connected to the pressure-bearing buffer assembly.

[0024] The pressure-bearing buffer assembly includes a sliding sleeve 53, a sliding column 54, a mounting base 55, and a compression spring 56. The lower mold base 11 has a vertical mounting groove corresponding to the vertical guide hole. The bottom of the vertical mounting groove is fixedly connected to the bottom end of the sliding column 54 through the mounting base 55. The sliding sleeve 53 is slidably connected to the sliding column 54. The sliding sleeve 53 is fixedly connected to the bottom end of the guide column 51. The top of the sliding column 54 is slidably connected to the blind hole at the bottom of the guide column 51. The section of the sliding column 54 between the mounting base 55 and the sliding sleeve 53 is fitted with a compression spring 56. The upper and lower ends of the compression spring 56 are respectively connected to the sliding sleeve 53 and the mounting base 55. When the top of the guide column 51 is compressed, it slides down along the sliding column 54, and the compression spring 56 is compressed downward by the sliding sleeve 53. When the top of the guide column 51 is no longer compressed, the compression spring 56 returns to its original position and extends, pushing the guide column 51 upward along the sliding column 54. The lower pad 12 and the lower template 13 have anti-interference holes corresponding to the guide column 51.

[0025] The strip 7 is located between the tops of the two rows of guide posts 51. The front and rear sides of the strip 7 are respectively located in the corresponding strip annular guide grooves 52. During stamping, the top of the guide post 51 is pressed, and the pressure buffer component shortens, allowing the guide post 51 to retract into the guide vertical hole. The strip 7 is stamped close to each processing area on the upper side of the lower die 13. After the stamping is completed, the upper die mechanism 2 moves upward, and the pressure buffer component pushes the guide post 51 to reset upward, allowing the bottom of the strip 7 to leave each processing area on the upper side of the lower die 13. This avoids the shape and structure of each processing area on the upper side of the lower die 13 from affecting the smooth rightward movement of the strip 7, which is conducive to continuous stamping operation.

[0026] In use, the upper die mechanism 2 is driven up and down by the hydraulic cylinder of the stamping equipment. The strip 7 is driven by an external drive component, moving from left to right between the bottom of the upper die mechanism 2 and the top of the lower die plate 13. The strip 7 moves one processing area to the right each time. The strip 7 passes through the following areas in sequence: guide punching area 1301, cutting area one 1302, cutting area two 1303, chamfering area one 1304, chamfering area two 1305, pre-bending area 1306, fine bending area 1307, angle shaping area 1308, cutting area three 1309, chamfering area three 1310, pre-punching area 1311, fine punching area 1312, chamfering area four 1313, and finally the product is dropped. In zones 1314 and 1315, the material belt guide hole 71 is punched at the guide punching zone 1301. During subsequent movements, the guide hole 71 and the misfeed detection pin help to check the accuracy of the material belt 7's left-to-right feeding distance. Then, after two rounds of cutting in the outer shape zone 1302 and outer shape zone 2 1303, the raw material body of the bright-section part 8 is cut out, forming the protrusion that needs to be bent and punched. The cut edges are then chamfered in chamfering zones 1304 and 1305. Finally, the area requiring punching is pre-bent in the pre-bending zone 1306 and fine bending zone 1307. Fine bending involves two orderly bends to avoid damage at the bend. Angle shaping zone 1308 corrects the angle of the bent area. Then, cutting out the two remaining corner notches via cutting zone 1309. Chamfering zone 1310 chamfers the cut edges. Pre-punching zone 1311 performs the first punching process on the protruding part of the bright cross-section part 8 after bending, producing a pre-punched disc 81. Then, fine punching zone 1312 performs a second punching process on the first hole, producing a fine-punched disc 82. Because the fine-punched disc 82 is a relatively thin annular structure, the punching force can... The bright cross-section 83 is formed. The chamfering area 1313 performs the final chamfering treatment. In the product dropping area 1314, the bright cross-section part 8 that has been stamped is stamped off the strip 7. The bright cross-section part 8 falls down through the dropping holes on the lower die base 11, the lower pad 12 and the lower template 13. The scrap cutting area 1315 cuts off the front and rear ends of the remaining strip 7. The right end of the strip 7 forms a scrap plate that falls off. This prevents the right end of the strip 7 from continuing to move to the right and forming greater pressure, which would cause the middle of the strip 7 to lift up. The small scrap plate is also easier to handle. The stamping guide component 3 makes the upper die mechanism 2 move up and down more stably during stamping.

[0027] Example 2, please refer to Figures 1 to 4 This utility model provides a technical solution: a stamping die for parts with a bright cross-section. This embodiment is largely the same in structure as Embodiment 1, except that: A material feeding guide assembly 4 is also provided. The material feeding guide assembly 4 includes a support 41, screws 42, and guide side baffles 43. The support 41 is fixedly connected to the upper left side of the lower mold base 11. Two transverse guide side baffles 43 are fixedly connected to the front and rear ends of the upper side of the support 41 by screws 42. The support 41 is used to support the bottom left end of the material strip 7, and the screws 42 are used to install the guide side baffles 43. The two guide side baffles 43 limit the front and rear sides of the material strip 7 to ensure stable feeding.

[0028] Example 3, please refer to Figures 1 to 4 This utility model provides a technical solution: a stamping die for parts with a bright cross-section. This embodiment is largely the same in structure as Embodiment 2, except that: A waste cutting module 6 is also provided, which includes a lower cutting seat 61 and an upper cutting blade 62. Two lower cutting seats 61 are respectively set on the upper side of the lower template 13 at the front and rear sides of the waste cutting area 1315. Two upper cutting blades 62 are respectively installed on the front and rear sides of the right end of the upper clamping plate 23. The left sides of the two upper cutting blades 62 are respectively arranged vertically and vertically corresponding to the right sides of the two lower cutting seats 61. As the upper clamping plate 23 moves down and approaches the lower cutting seat 61, the front and rear sides of the strip 7 are respectively between the lower cutting seat 61 and the upper cutting blade 62. The lower cutting seat 61 and the upper cutting blade 62 approach and cut the front and rear sides of the strip 7. Since the middle area of ​​the strip 7 has been stamped with a bright cross-section part 8 to form a hollow area, the right end of the strip 7 is completely cut off at this time, forming a waste plate that falls down.

[0029] 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.

[0030] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stamping die for parts with a bright cross-section, characterized in that, include: The lower die mechanism (1) includes a lower die base (11), a lower pad (12), and a lower template (13). The lower pad (12) is installed on the upper side of the lower die base (11), and the lower template (13) is installed on the upper side of the lower pad (12). The upper side of the lower template (13) is provided with two rows of guide vertical holes. The upper side of the lower template (13) is provided with a guide punching area (1301) and a cutting shape area (1301) from left to right between the two rows of guide vertical holes. 02), Cutting area 2 (1303), Chamfering area 1 (1304), Chamfering area 2 (1305), Pre-bending area (1306), Fine bending area (1307), Angle shaping area (1308), Cutting area 3 (1309), Chamfering area 3 (1310), Pre-punching area (1311), Fine punching area (1312), Chamfering area 4 (1313), Dropped product area (1314) and Scrap material cutting area (1315); The upper mold mechanism (2) is installed above the lower mold plate (13), and the bottom of the upper mold mechanism (2) is connected to the top of the lower mold base (11) via the stamping guide assembly (3).

2. The stamping die for a bright cross-section part according to claim 1, characterized in that: The upper mold mechanism (2) includes an upper mold base (21), an upper pad (22), an upper clamping plate (23), a stop plate (24), and a release plate (25). The upper mold base (21) is equipped with an upper pad (22), the upper pad (22) is equipped with an upper clamping plate (23), the upper clamping plate (24) is equipped with a stop plate (24) on the lower side of the upper clamping plate (23), and the release plate (25) is equipped with a stop plate (25) at the bottom of the stop plate (24).

3. The stamping die for a bright cross-section part according to claim 2, characterized in that: It also includes a pre-punching punch (9) and a fine punch (10). The top of the pre-punching punch (9) is fixedly connected to the bottom of the upper die base (21) at the position corresponding to the pre-punching area (1311). The top of the fine punch (10) is fixedly connected to the bottom of the upper die base (21) at the position corresponding to the fine punch area (1312). The stop plate (24) and the anti-detachment plate (25) are provided with hollow grooves corresponding to the pre-punching punch (9) and the fine punch (10). The lower die plate (13) is provided with a waste discharge hole one that cooperates with the pre-punching punch (9). The lower die plate (13) is also provided with a waste discharge hole two that cooperates with the fine punch (10).

4. The stamping die for a bright cross-section part according to claim 1, characterized in that: It also includes a material strip feeding guide assembly (4), which includes a support (41), screws (42) and guide side bars (43). The support (41) is fixedly connected to the upper left side of the lower mold base (11), and two horizontal guide side bars (43) are fixedly connected to the front and rear ends of the upper side of the support (41) by screws (42).

5. The stamping die for a bright cross-section part according to claim 2, characterized in that: It also includes a punching slot (15) and a guide hole punch (26). The punching slot (15) is provided on the lower template (13) at the position of the guide punching area (1301). The guide hole punch (26) is installed on the bottom of the upper clamping plate (23) at the position corresponding to the punching slot (15).

6. The stamping die for a bright cross-section part according to claim 1, characterized in that: It also includes a material strip positioning and guiding mechanism (5), which includes a guide post (51), a material strip annular guide groove (52) and a pressure-bearing buffer assembly. The guide post (51) is vertically slidably installed in the guide vertical hole. The guide post (51) has an annular guide groove (52) on the outer periphery of the top of the guide post (51). The bottom end of the guide post (51) is connected to the pressure-bearing buffer assembly.

7. The stamping die for a bright cross-section part according to claim 2, characterized in that: It also includes a waste cutting module (6), which includes a lower cutting seat (61) and an upper cutting knife (62). Two lower cutting seats (61) are respectively arranged on the upper side of the lower template (13) at the front and rear sides of the waste cutting area (1315). Two upper cutting knives (62) are respectively installed on the front and rear sides of the right end of the upper clamping plate (23). The left side of the two upper cutting knives (62) is respectively arranged vertically and vertically corresponding to the right side of the two lower cutting seats (61).

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