Forging and pressing die

Abstract

The embodiment of the utility model provides a forging and pressing die, and relates to the technical field of forging and pressing bending devices. The forging and pressing die comprises an upper die and a lower die, the lower die comprises a lower die seat and a guide roller, a first bending groove is formed in the lower die seat, and the first bending groove extends in the first direction X; the first bending groove is used for placing a to-be-bent part; a guide roller is arranged at the end of the first bending groove and used for limiting the to-be-bent part to move in the second direction Y. The first direction X is perpendicular to the second direction Y. The upper die and the lower die are jointly used for forging and pressing a to-be-bent piece. By arranging the guide rollers, the position of the to-be-bent part can be limited so as to prevent the to-be-bent part from inclining leftwards and rightwards in the transverse direction, namely inclining in the second direction Y during bending, so that the flatness yield and stability are improved, the subsequent procedures and labor cost are reduced, and the production efficiency is improved. And moreover, the guide rollers are adopted for limiting, so that scratches and damages on the to-be-bent part can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of forging and bending devices, and particularly to a forging die. Background Art

[0002] Forging dies play a crucial role in the forging process. By applying external forces, the blank is plastically deformed to obtain parts with the required shape and size. The die has a specific contour or inner cavity shape. Applying a contour shape with a cutting edge can cause the blank to separate along the contour line (blanking), ensuring the shape and dimensional accuracy of the forgings. In addition, the die can also control the deformation direction of the metal. According to the theory of metal plastic forming, when plastic deformation occurs, the metal mainly flows in the direction of the maximum principal stress. The die design should minimize the flow resistance of the forgings during deformation, reduce the peak stress, and improve the plasticity of the material. The closed die cavity makes the metal in a state of triaxial compressive stress in the final stage of final forging, thereby improving the plasticity of the material. The die can also control the instability of the blank, improve the forming limit, and prevent the slender rod from bending due to plastic instability when compressed, thus preventing defects such as folding. Forging dies play a decisive role in the forging process. Through precise design and control, the quality and performance of the forgings are ensured to meet the expected standards. Currently, in order to prevent scratches and damage on the surface of the workpiece and destroy the surface quality of the workpiece, the current forging and bending dies mostly use process rollers for bending.

[0003] However, affected by the pressure during bending, the above-mentioned forging and bending dies will cause the product to tilt horizontally left and right, and the upper and lower warping of both ends after bending cannot meet the flatness requirements, increasing the large amount of equipment and labor rectification costs in the subsequent processes, and at the same time reducing the production efficiency. Summary of the Utility Model

[0004] The utility model provides a forging die, which can fix the workpiece to be bent without swinging left and right, improve the accuracy and yield rate of the product, reduce the scrapping of defective products, and improve the production efficiency.

[0005] The embodiments of the utility model can be implemented as follows:

[0006] The embodiments of the utility model provide a forging die, which includes:

[0007] An upper die;

[0008] A lower die, the lower die includes a lower die base and guide rollers. The lower die base is provided with a first bending groove, and the first bending groove extends along a first direction X; the first bending groove is used for placing the workpiece to be bent; guide rollers are arranged at the ends of the first bending groove, and the guide rollers are used to limit the movement of the workpiece to be bent along a second direction Y; the first direction X and the second direction Y are perpendicular;

[0009] The upper die and the lower die are jointly used for forging the to-be-bent part.

[0010] In an alternative embodiment, the lower die base is further provided with a mounting groove for mounting the guiding roller.

[0011] In an alternative embodiment, the guiding roller includes a roller body and a fixed roller insert, the fixed roller insert is disposed in the mounting groove; the fixed roller insert is provided with a groove, and the roller body is located in the groove.

[0012] In an alternative embodiment, the fixed roller insert is snap-connected to the lower die base.

[0013] In an alternative embodiment, guiding rollers are disposed at both end positions of the first bending groove.

[0014] In an alternative embodiment, the lower die further includes a first positioning block and a second positioning block, both the first positioning block and the second positioning block are connected to the lower die base, and the first positioning block and the second positioning block are respectively disposed at both ends of the first bending groove;

[0015] The first positioning block and the second positioning block are jointly used for restricting the to-be-bent part from moving along the first direction, i.e., the X direction.

[0016] In an alternative embodiment, the number of the first bending grooves is multiple, and the multiple first bending grooves are arranged at intervals along the second direction.

[0017] In an alternative embodiment, the lower die further includes a lower die stripper plate, the lower die stripper plate is connected to the lower die base, and the first bending groove is formed in the lower die stripper plate.

[0018] In an alternative embodiment, the lower die base includes a lower base, a support block and a lower pressing plate, one end of the support block is connected to the lower base, and the other end of the support block is connected to the lower pressing plate; the first bending groove is formed in a surface of the lower pressing plate away from the lower base.

[0019] In an alternative embodiment, the upper die includes an upper die base and a bending block, the bending block is connected to the upper die base; in the case of forging, the bending block is used for forging the to-be-bent part at the first bending groove.

[0020] The beneficial effects of the forging die according to the embodiment of the present utility model include:

[0021] The forging die includes an upper die and a lower die. The lower die includes a lower die base and guide rollers. The lower die base is provided with a first bending groove that extends along a first direction X. The first bending groove is used to place the workpiece to be bent. Guide rollers are provided at the ends of the first bending groove, and the guide rollers are used to restrict the movement of the workpiece to be bent along a second direction Y. The first direction X and the second direction Y are perpendicular. The upper die and the lower die are jointly used for forging the workpiece to be bent. By providing guide rollers, the position of the workpiece to be bent can be restricted to prevent the workpiece to be bent from tilting horizontally to the left and right, that is, tilting along the second direction Y during bending, thereby improving the flatness yield and stability, reducing subsequent processes and labor costs, and improving production efficiency. Moreover, by using the guide rollers for limiting, the friction between the guide rollers and the workpiece to be bent can also be reduced to reduce scratch damage to the workpiece to be bent. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0023] Figure 1 Schematic diagram of the forging die provided in the embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the lower die provided in the embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the guide roller provided with the workpiece to be bent and the positioning block in the embodiment of the present invention;

[0026] Figure 4 Schematic diagram of the upper die provided in the embodiment of the present invention.

[0027] Reference Signs: 1000 - Forging Die; 100 - Upper Die; 110 - Upper Die Base; 120 - Bending Block; 121 - Second Bending Groove; 200 - Lower Die; 210 - Lower Die Base; 211 - Installation Groove; 212 - Lower Base; 213 - Support Block; 214 - Lower Pressure Plate; 220 - Guide Roller; 221 - Roller Body; 222 - Fixed Roller Insert; 2221 - Groove; 230 - First Positioning Block; 240 - Second Positioning Block; 250 - Lower Die Stripper Plate; 251 - First Bending Groove; 2000 - Workpiece to be Bent. Detailed Embodiment

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings below is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0032] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0033] It should be noted that the features in the embodiments of the present utility model can be combined with each other without conflict.

[0034] Forging dies play a crucial role in the forging process. By applying external forces, they cause the blank to undergo plastic deformation, resulting in parts with the desired shape and dimensions. The die has a specific contour or cavity shape. Using a contour shape with a cutting edge allows the blank to be separated along the contour line (blanking), ensuring the shape and dimensional accuracy of the forgings. Additionally, the die can control the direction of metal deformation. According to the theory of metal plastic forming, during plastic deformation, the metal mainly flows in the direction of the maximum principal stress. The die design should minimize the flow resistance of the forging during deformation, reduce the peak stress, and improve the plasticity of the material. The closed die cavity places the metal in a triaxial compressive stress state in the final stage of finish forging, thereby enhancing the plasticity of the material. The die can also control the instability of the blank, increase the forming limit, and prevent slender rods from bending due to plastic instability under compression, thus preventing defects such as folding. Forging dies play a vital role in the forging process. Through precise design and control, they ensure that the quality and performance of the forgings meet the expected standards. Currently, in order to prevent scratches and damage to the surface of the workpiece and destroy the surface quality of the workpiece, most forging and bending dies use process rollers for bending. However, when the above forging and bending dies are bent, affected by the pressure, the product will tilt left and right horizontally, the two ends will warp up and down after bending, and the curved surface cannot meet the flatness requirements, increasing the large amount of equipment and labor rectification costs in the subsequent processes and reducing the production efficiency at the same time.

[0035] Based on this, please refer to Figure 1 and Figure 2 In the embodiments of the present invention, the forging die 1000 provided can effectively improve the above-mentioned technical problems. The forging die 1000 can fix the workpiece to be bent 2000 from swinging left and right, improve the accuracy and yield rate of the product, reduce the scrapping of defective products, and improve the production efficiency.

[0036] Figure 1 is a schematic diagram of the forging die 1000 provided in the embodiments of the present invention; Figure 2 is a schematic diagram of the lower die 200 provided in the embodiments of the present invention, as shown in Figure 1 and Figure 2As shown in the figure, the forging die 1000 in this embodiment includes an upper die 100 and a lower die 200. The lower die includes a lower die base 210 and guide rollers 220. The lower die base 210 is provided with a first bending groove 251 that extends along the first direction X. The first bending groove 251 is used to place the workpiece to be bent 2000. Guide rollers 220 are provided at the ends of the first bending groove 251, and the guide rollers 220 are used to restrict the movement of the workpiece to be bent 2000 along the second direction Y. The first direction X and the second direction Y are perpendicular. The upper die 100 and the lower die 200 are jointly used to forge the workpiece to be bent 2000. The guide rollers 220 can fix the position of the workpiece to be bent 2000 in the static state and restrict the movement of the workpiece to be bent 2000 along the second direction Y during the bending process, that is, prevent the workpiece to be bent 2000 from swinging left and right, thereby improving the product yield and production efficiency. By setting the guide rollers 220, the position of the workpiece to be bent 2000 can be restricted to prevent the workpiece to be bent 2000 from tilting horizontally left and right during bending, that is, tilting along the second direction Y, thereby improving the flatness yield and stability, reducing the subsequent processes and labor costs, and improving the production efficiency. Moreover, by using the guide rollers 220 for positioning, the friction between the guide rollers 220 and the workpiece to be bent 2000 can also be reduced to reduce the scratch damage on the workpiece to be bent 2000.

[0037] Specifically, the shape of the guide roller 220 in this embodiment is an I-shaped cylindrical body, that is, the guide roller 220 includes a first roller, a connecting plate, and a second roller. One end of the connecting plate is connected to the first roller, and the other end of the connecting plate is connected to the second roller. The length of the connecting plate is the same as the width of the first bending groove 251, and the connecting plate is closely arranged with the first bending groove 251. A part of the workpiece to be bent 2000 is located at the position of the connecting plate, and the first roller and the second roller abut against the workpiece to be bent 2000. The length of the connecting plate refers to the length of the connecting plate along the second direction Y, and the width of the first bending groove 251 refers to the length of the first bending groove 251 along the second direction Y. By designing the guide roller 220 into this structural form, the problem of flatness warping of the workpiece to be bent 2000 after bending can be solved, and the connecting plate is equivalent to playing the role of a positioning and guiding groove structure, which can prevent the bent edge from tilting left and right, that is, moving along the second direction Y. Thereby effectively improving the flatness yield and stability, while also reducing the equipment and labor costs of the subsequent processes and improving the production efficiency.

[0038] Of course, the guide roller 220 can also be a single roller structure. If the guide roller 220 adopts a single roller structure, that is, a single roller structure needs to be provided on both sides of the end of the first bending groove 251 to fix the position of the workpiece to be bent 2000 placed in the first bending groove 251 and prevent it from swinging left and right during bending, that is, moving along the second direction Y.

[0039] For the convenience of installing the guiding roller 220, please refer to Figure 2 In this embodiment, the lower die base 210 is further provided with an installation groove 211 for installing the guiding roller 220. The shape and size of the installation groove 211 are designed according to the structure of the guiding roller 220, which is not limited herein. Further, in order to prevent the guiding roller 220 from affecting the forging of the upper die 100, the top of the guiding roller 220 located in the installation groove 211 is flush with the surface of the lower die base 210 provided with the first bending groove 251. Of course, the top of the guiding roller 220 can also be slightly lower than the surface of the lower die base 210 provided with the first bending groove 251, as long as it can ensure that the guiding roller 220 can limit and fix the workpiece to be bent 2000 and does not affect the forging of the upper die 100. The diameter of the guiding roller 220 is determined according to the actual forging situation, which is not limited herein.

[0040] In order to improve the fixing effect of the guiding roller 220 and further fix the workpiece to be bent 2000, guiding rollers 220 are provided at both end positions of the first bending groove 251 in this embodiment. Of course, the guiding roller 220 can also be provided only at one end position of the first bending groove 251, which is not limited herein.

[0041] In order to prevent the workpiece to be bent 2000 from moving in the first direction and further fix the workpiece to be bent 2000 to prevent the workpiece to be bent 2000 from moving during the bending process and affecting the flatness, please refer to Figure 2 In this embodiment, the lower die 200 further includes a first positioning block 230 and a second positioning block 240. The first positioning block 230 and the second positioning block 240 are both connected to the lower die base 210, and the first positioning block 230 and the second positioning block 240 are respectively arranged at both ends of the first bending groove 251. The first positioning block 230 and the second positioning block 240 are jointly used to limit the movement of the workpiece to be bent 2000 in the first direction, the X direction. The first positioning block 230 and the second positioning block 240 are threadedly connected to the lower die base 210. Of course, the first positioning block 230 and the second positioning block 240 can also be movably connected to the lower die base 210, that is, the first positioning block 230 and the second positioning block 240 can adjust their positions on the lower die base 210 according to the length of the workpiece to be bent 2000 to abut against workpieces of different lengths. In addition, the shapes of the first positioning block 230 and the second positioning block 240 are not limited herein, as long as they can limit the movement of the workpiece to be bent 2000 in the first direction X.

[0042] To improve the forging efficiency and reduce the production time, in this embodiment, the number of the first bending grooves 251 is multiple, and the multiple first bending grooves 251 are arranged at intervals in the second direction. By providing multiple first bending grooves 251 and providing a guiding roller 220 at the end of each first bending groove 251, the workpiece to be bent 2000 is restricted from moving in the second direction Y. One workpiece to be bent 2000 can be placed in each first bending groove 251, so that multiple workpieces to be bent 2000 can be simultaneously forged and bent.

[0043] Please continue to refer to Figure 2 , to facilitate the removal of the workpiece to be bent 2000 from the mold after forging and bending, the lower mold 200 in this embodiment further includes a lower mold stripping plate 250. The lower mold stripping plate 250 is connected to the lower mold base 210, and the first bending groove 251 is formed on the lower mold stripping plate 250. The mold stripping plate is an important component of the mold. It is usually installed at the bottom of the mold and contacts the workpiece to play a role in detaching the workpiece. The mold stripping plate and the bottom of the mold are generally integrally formed, and the material is generally selected from high-quality steel to ensure the stability and durability of the stripping plate. The main function of the lower mold 200 stripping plate is to detach the workpiece to be bent 2000 from the mold and prevent the workpiece to be bent 2000 from sticking to the mold, thereby improving the production efficiency and product quality. Specifically, the functions of the lower mold 200 stripping plate are as follows: First, prevent the workpiece from sticking to the mold: The lower mold 200 stripping plate contacts the workpiece to be bent 2000 and detaches the workpiece to be bent 2000 from the mold, preventing the workpiece to be bent 2000 from sticking to the mold, thereby increasing the service life of the mold. Second, improve work efficiency: The presence of the lower mold 200 stripping plate can reduce the time and labor costs of workers in detaching the workpiece. Third, optimize product quality: The lower mold 200 stripping plate can ensure the smooth surface of the workpiece and avoid the occurrence of phenomena such as deformation and damage, ensuring product quality.

[0044] To improve the strength of the lower mold base 210, please refer to Figure 2 , in this embodiment, the lower mold base 210 includes a lower base 212, a support block 213, and a lower pressing plate 214. One end of the support block 213 is connected to the lower base 212, and the other end of the support block 213 is connected to the lower pressing plate 214; the first bending groove 251 is formed on the surface of the lower pressing plate 214 away from the lower base 212. Of course, the support block 213 can also be replaced with a support column with adjustable height to adjust the height of the lower pressing plate 214 from the lower base 212, so that the operator can adjust the height of the lower pressing plate 214 from the lower base 212 according to the actual situation, thereby facilitating the placement of the workpiece to be bent 2000. In addition, the lower mold base 210 can also be designed in other structural forms, which is determined according to the actual forging requirements and will not be limited here.

[0045] Figure 3Schematic diagram of the guiding roller 220 provided with the workpiece 2000 to be bent and the positioning block in the embodiment of the present utility model. Please refer to Figure 3 , in order to prevent scratches and bending marks on the surface of the workpiece 2000 to be bent, the guiding roller 220 in this embodiment includes a roller body 221 and a fixed roller insert 222. The fixed roller insert 222 is arranged in the installation groove 211; the fixed roller insert 222 is provided with a groove 2221, and the roller body 221 is located in the groove 2221. By providing the fixed roller insert 222, during the downward bending process, the roller body 221 can roll along the bending direction of the workpiece 2000 to be bent, so as to ensure that no scratches or bending marks will appear on the product surface. At the same time, it is ensured that the workpiece 2000 to be bent will not swing left and right in the first bending groove 251, resulting in product distortion, poor flatness, etc., so as to improve production efficiency.

[0046] In order to facilitate the installation of the fixed roller insert 222, the fixed roller insert 222 in this embodiment is snap-connected to the lower die base 210. Specifically, the fixed roller insert 222 is provided with a snap structure, and the wall surface of the lower die base 210 forming the installation groove 211 is provided with a snap groove. The snap structure and the snap groove cooperate to realize the fixation of the fixed roller insert 222 and the lower die base 210. Of course, a snap structure can also be provided on the wall surface of the lower die base 210 forming the installation groove 211, and a snap groove is opened at the corresponding position on the fixed roller insert 222. The snap structure and the snap groove cooperate. In addition, the fixed roller insert 222 can also be connected to the lower die base 210 by means of threaded fasteners such as bolts, or other connection methods can be used for fixation, which is not limited herein.

[0047] Figure 4 Schematic diagram of the upper die 100 provided in the embodiment of the present utility model. Please refer to Figure 4 , the upper die 100 in this embodiment includes an upper die base 110 and a bending block 120. The bending block 120 is connected to the upper die base 110; in the case of forging, the bending block 120 is used to forge the workpiece 2000 to be bent at the first bending groove 251. Specifically, the surface of the bending block 120 away from the upper die base 110 is provided with a second bending groove 121; in the case of forging, the first bending groove 251 and the second bending groove 121 cooperate for forging to bend the workpiece 2000 to be bent. Of course, the upper die 100 can also be designed in other structural forms according to the actual forging situation, which is not limited herein.

[0048] According to a forging die 1000 provided in this embodiment, its working principle is as follows:

[0049] Place the workpiece to be bent in the first bending groove 251. The first positioning block 230 abuts against one end of the workpiece 2000 to be bent, and the second positioning block 240 abuts against the other end of the workpiece 2000 to be bent. The guiding roller 220 restricts the workpiece 2000 to move along the second direction Y. After the workpiece 2000 to be bent is installed, the upper die 100 moves downward, and the bending block 120 presses down the workpiece 2000 to be bent to achieve bending.

[0050] In summary, the forging die 1000 includes an upper die 100 and a lower die 200. The lower die includes a lower die base 210 and guiding rollers 220. The lower die base 210 is provided with a first bending groove 251 that extends along the first direction X. The first bending groove 251 is used to place the workpiece 2000 to be bent. A guiding roller 220 is arranged at the end of the first bending groove 251, and the guiding roller 220 is used to restrict the workpiece 2000 to move along the second direction Y. The first direction X and the second direction Y are perpendicular. The upper die 100 and the lower die 200 are jointly used to forge the workpiece 2000 to be bent. By arranging the guiding roller 220, the position of the workpiece 2000 to be bent can be restricted to prevent the workpiece 2000 to be bent from tilting horizontally to the left and right, that is, tilting along the second direction Y during bending, thereby improving the flatness yield and stability, reducing subsequent processes and labor costs, and improving production efficiency. Moreover, by using the guiding roller 220 for positioning, the friction between the guiding roller 220 and the workpiece 2000 to be bent can also be reduced to reduce scratch damage to the workpiece 2000 to be bent.

[0051] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A forging die, characterized in that: include: Upper mold (100); A lower mold (200), the lower mold (200) comprising a lower mold base (210) and a guide roller (220), the lower mold base (210) being provided with a first bending groove (251), the first bending groove (251) extending along a first direction X; the first bending groove (251) being used for placing a workpiece (2000) to be bent; the guide roller (220) being provided at an end of the first bending groove (251), the guide roller (220) being used for limiting the movement of the workpiece (2000) to be bent along a second direction Y; the first direction X and the second direction Y being perpendicular; The upper die (100) and the lower die (200) are used together to forge the part to be bent (2000).

2. The forging die according to claim 1, characterized in that: The lower mold base (210) is also provided with a mounting groove (211), and the mounting groove (211) is used for mounting the guide roller (220).

3. The forging die according to claim 2, characterized in that: The guide roller (220) comprises a roller body (221) and a fixed roller insert (222), wherein the fixed roller insert (222) is arranged in the mounting groove (211); the fixed roller insert (222) is provided with a groove (2221), and the roller body (221) is located in the groove (2221).

4. The forging die according to claim 3, characterized in that: The fixed roller insert (222) is snap-connected to the lower mold base (210).

5. The forging die according to claim 1, characterized in that: The guide rollers (220) are arranged at the end positions of both ends of the first bending groove (251).

6. The forging die according to claim 1, characterized in that: The lower mold (200) further comprises a first positioning block (230) and a second positioning block (240), wherein the first positioning block (230) and the second positioning block (240) are both connected to the lower mold base (210), and the first positioning block (230) and the second positioning block (240) are respectively arranged at two ends of the first bending groove (251); The first positioning block (230) and the second positioning block (240) are used together to limit the movement of the part to be bent (2000) along the first direction X.

7. The forging die according to claim 1, characterized in that: There are a plurality of the first bending grooves (251), and the plurality of the first bending grooves (251) are arranged at intervals along the second direction.

8. The forging die according to claim 1, characterized in that: The lower mold (200) further comprises a lower mold stripping plate (250), the lower mold stripping plate (250) is connected to the lower mold base (210), and the lower mold stripping plate (250) is provided with the first bending groove (251).

9. The forging die according to claim 1, characterized in that: The lower mold seat (210) comprises a lower base (212), a support block (213) and a lower pressing plate (214); one end of the support block (213) is connected to the lower base (212), and the other end of the support block (213) is connected to the lower pressing plate (214); the first bending groove (251) is provided on a side of the lower pressing plate (214) away from the lower base (212).

10. The forging die according to any one of claims 1 to 9, characterized in that: The upper die (100) comprises an upper die seat (110) and a bending block (120), wherein the bending block (120) is connected to the upper die seat (110); in the case of forging, the bending block (120) is used to forge the part to be bent (2000) at the first bending groove (251).

Images