A multi-functional stamping die and a method of use

Abstract

The present application belongs to the technical field of stamping die, and discloses a stamping die with multiple functions and a use method. The stamping die comprises a lower die base, the lower die base is connected with an upper die base through a hydraulic rod, an electric push rod is fixedly connected in the upper die base, a male die is fixedly connected on the electric push rod, a forming groove and a fixing groove are arranged in the lower die base. An adjusting assembly and a moving assembly are arranged in the fixing groove, a limiting plate is connected to the top end of the moving assembly, a connecting rod is connected between the bottom end of the moving assembly and a top rod, the top rod is connected with a top plate, the moving assembly is driven by the adjusting assembly to move the limiting plate to limit the workpiece, the connecting rod drives the top rod and the top plate to slide down at the same time, the top plate is reset, so that the position of the workpiece can be limited, the top plate and the top rod are reset to the original position, after stamping is completed, the limited workpiece can be moved away and the stamped workpiece can be ejected, and the buffer assembly can buffer the stamping force.

Description

Technical Field

[0001] This invention belongs to the field of stamping die technology, specifically relating to a multifunctional stamping die and its usage method. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). They are called cold stamping dies (commonly known as cold stamping dies). Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or plastically deform, thereby obtaining the desired parts.

[0003] For example, the metal stamping die disclosed in invention publication number CN114309322A is easy to eject. Although it can eject the stamped workpiece, the stamping die in the prior art is not convenient to limit the position of the workpiece and eject the formed workpiece at the same time when stamping the workpiece. This causes problems that affect the stamping effect and ejection of the workpiece in the prior art. Therefore, we propose a multifunctional stamping die. Summary of the Invention

[0004] The purpose of this invention is to provide a multifunctional stamping die and its usage method to solve the technical problem in the prior art that stamping dies are not convenient for limiting the position of the workpiece and ejecting the formed workpiece at the same time.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] A multifunctional stamping die includes a lower die base with two hydraulic rods fixedly connected to the top ends of the two hydraulic rods, an upper die base fixedly connected inside the upper die base, a punch fixedly connected to one end of the electric push rod, a forming groove inside the lower die base, and fixed grooves at both ends of the forming groove, an adjusting component and a moving component inside the fixed groove, the adjusting component being parallel to the upper die base at the bottom of the fixed groove, and the moving component being perpendicular to the adjusting component, with one end connected to the adjusting component and the other end connected to a limiting plate, a top plate inside the forming groove, and several push rods at the bottom of the top plate, the push rods being connected to the bottom end of the moving component via connecting rods, and a buffer component on the upper surface of the top plate.

[0007] Preferably, the moving component includes a first moving rod and a second moving rod, which are slidably disposed inside the lower mold base at both ends of the forming groove. The top ends of the first moving rod and the second moving rod are detachably connected to the limiting plate, and the bottom ends are connected to the adjusting component through a moving screw sleeve. The bottom ends of the first moving rod and the second moving rod are rotatably connected to the connecting rod, and the connecting rod is rotatably connected to the top rod.

[0008] Preferably, the limiting plate has an installation groove inside, and two sliding plates are slidably connected inside the installation groove. A tension spring is fixedly connected between the two sliding plates, and a first limiting baffle and a second limiting baffle are fixedly connected to the other side of the two sliding plates respectively; and the first limiting baffle and the second limiting baffle are both L-shaped.

[0009] Preferably, the adjusting component includes a drive motor fixedly connected to the inner wall of the fixed groove, and the output shaft of the drive motor is fixedly connected to a bidirectional lead screw via a coupling. Two movable sleeves are threaded onto the surface of the bidirectional lead screw, and the bottom end of the adjusting component is fixedly connected to the movable sleeves respectively.

[0010] Preferably, a limiting groove is also provided at the bottom of the fixing groove, and one end of a limiting rod is fixedly connected to the bottom of each of the two movable screw sleeves, while the other end of the limiting rod is slidably connected to the limiting groove.

[0011] Preferably, the buffer assembly includes a buffer top plate, which is disposed above a top plate, and a plurality of buffer springs are disposed between the top plate and the buffer top plate.

[0012] Preferably, the top ends of the first and second moving rods are detachably connected to the limiting plate via a connecting assembly. The connecting assembly includes connecting screw holes formed at one end of the first and second moving rods, and connecting screws are threaded into the internal parts of the connecting screw holes. One end of each of the two connecting screws is fixedly connected to the limiting plate.

[0013] Preferably, the lower surface of the upper mold base is provided with a groove, and one end of the limiting plate is slidably connected inside the groove.

[0014] A method of using a multifunctional stamping die, comprising:

[0015] S1: Place the workpiece on the upper surface of the lower mold base; the adjusting component drives the moving component, which in turn drives the limiting plate to move and limit the workpiece; at the same time, the moving component drives the ejector rod and the ejector plate to slide down through the connecting rod, so that the ejector plate is reset.

[0016] S2: The hydraulic rod drives the upper die seat to move down, the electric push rod works, and drives the punch to descend and stamp the workpiece. After that, the upper die seat and the punch are reset.

[0017] S3: The adjusting component drives the moving component, which in turn drives the limiting plate to move in the opposite direction. While releasing the workpiece from the limit, the moving component pushes the top rod and the top plate to slide down through the connecting rod, and the stamped workpiece is pushed out through the top plate.

[0018] Preferably, the adjustment assembly includes: a drive motor, a bidirectional lead screw, and a moving screw sleeve, and the specific steps of its use include:

[0019] S1: Place the workpiece on the upper surface of the lower mold base; drive the double-acting screw to work, the double-acting screw drives the moving component fixed by the moving screw sleeve to move the limiting plate to limit the workpiece; at the same time, the moving component drives the push rod and the top plate to slide down through the connecting rod to reset the top plate.

[0020] S2: The hydraulic rod drives the upper die seat to move down, the electric push rod works, and drives the punch to descend and stamp the workpiece. After that, the upper die seat and the punch are reset.

[0021] S3: The drive motor drives the bidirectional lead screw to work. The bidirectional lead screw drives the moving component fixed by the moving screw sleeve, which in turn drives the limit plate to move in the opposite direction. At the same time, the moving component pushes the top rod and the top plate to slide through the connecting rod, and the stamped workpiece is pushed out through the top plate.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1) The multifunctional stamping die disclosed in this application uses an adjusting component to drive a moving component, which in turn drives a limiting plate to move and limit the workpiece. At the same time, the moving component drives the ejector rod and the ejector plate to slide down through a connecting rod, so that the ejector plate is reset. This makes it easy to limit the position of the workpiece while resetting the ejector plate and ejector rod to their original positions. After stamping, the limited workpiece can be removed and the stamped workpiece can be ejected. The buffer component can buffer the stamping force to a certain extent.

[0024] 2) By using the mounting slot, sliding plate, limiting plate, tension spring, first limiting baffle and second limiting baffle together, the workpiece can be positioned from four sides to avoid workpiece position deviation and avoid affecting the stamping accuracy of the workpiece.

[0025] 3) The connecting screw and connecting screw hole facilitate the quick installation and disassembly of limit plates of different shapes and sizes, limit baffles No. 1 and limit baffles No. 2. The limit groove and limit rod facilitate the position limit of the moving screw sleeve when it slides. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used 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 a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0028] Figure 2This is a cross-sectional view of the internal structure of the lower mold base according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the bottom structure of the top plate according to an embodiment of the present invention;

[0030] Figure 4 This is a cross-sectional view of the internal structure of the limiting plate according to an embodiment of the present invention;

[0031] Figure 5 This is an embodiment of the present invention. Figure 1 Enlarged view of the structure at point A in the middle.

[0032] Wherein: 1-Lower mold base; 2-Hydraulic rod; 3-Upper mold base; 4-Electric push rod; 5-Punch; 6-Forming groove; 7-Fixing groove; 8-First moving rod; 9-Second moving rod; 10-Limiting plate; 11-Connecting rod; 12-Top plate; 13-Push rod; 14-Mounting groove; 15-Slide plate; 16-Tension spring; 17-First limiting baffle; 18-Second limiting baffle; 19-Drive motor; 20-Double lead screw; 21-Moving screw sleeve; 22-Connecting screw hole; 23-Connecting screw; 24-Buffer spring; 25-Buffering top plate; 26-Limiting slide groove; 27-Limiting rod; 28-Slide opening; 29-Groove. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present 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 the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0039] The present invention will now be described in further detail with reference to the accompanying drawings:

[0040] See Figure 1 , Figure 2 This application discloses a multifunctional stamping die, including a lower die base 1. Two hydraulic rods 2 are provided on the lower die base 1. The top ends of the two hydraulic rods 2 are fixedly connected to an upper die base 3. An electric push rod 4 is fixedly connected inside the upper die base 3. One end of the electric push rod 4 is fixedly connected to a punch 5. A forming groove 6 is opened inside the lower die base 1. Fixed grooves 7 are opened at both ends of the forming groove 6. An adjustment component and a moving component are provided inside the fixed groove 7. The adjustment component is parallel to the upper die base 3 and is set at the bottom of the fixed groove 7. The moving component is perpendicular to the adjustment component and is connected at one end to the adjustment component and at the other end to a limiting plate 10. A top plate 12 is provided inside the forming groove 6. Several push rods 13 are provided at the bottom of the top plate 12. The push rods 13 are connected to the bottom end of the moving component through a connecting rod 11. A buffer component is provided on the upper surface of the top plate 12.

[0041] Working principle:

[0042] The workpiece is placed on the upper surface of the lower die base 1; the adjusting component operates, driving the moving component, which in turn drives the limiting plate 10 to move and limit the workpiece; simultaneously, the moving component drives the ejector rod 13 and the top plate 12 to slide down via the connecting rod 11, so that the top plate 12 is reset; the electric push rod 4 of the upper die base 3 operates, driving the punch 5 to descend and stamp the workpiece, and then the electric push rod 4 drives the punch 5 to reset; the adjusting component drives the moving component, which in turn drives the limiting plate 10 to move in the opposite direction, releasing the workpiece from the limit, while the moving component pushes the ejector rod 13 and the top plate 12 to slide up via the connecting rod 11, and the stamped workpiece is ejected through the top plate 12; the present invention provides a multifunctional stamping die, which can limit the position of different workpieces while allowing the top plate to slide down into the interior of the lower die base, and while ejecting the workpiece after stamping, unlocking the limited workpiece, making it easy to eject the workpiece.

[0043] In some embodiments, a multifunctional stamping die includes a lower die base 1, with two hydraulic rods 2 fixedly connected to the upper surface of the lower die base. An upper die base 3 is fixedly connected to the top ends of the two hydraulic rods 2. An electric push rod 4 is fixedly connected inside the upper die base 3, and a punch 5 is fixedly connected to one end of the electric push rod 4. A forming groove 6 and a fixing groove 7 are formed inside the lower die base 1. An adjusting component is provided inside the fixing groove 7. A first moving rod 8 and a second moving rod 9 are slidably connected inside the lower die base 1. A connecting component is provided at the top end of both the first moving rod 8 and the second moving rod 9. A limiting plate 10 is provided at one end of each connecting component. A connecting rod 11 is rotatably connected to the bottom ends of both the first moving rod 8 and the second moving rod 9 via a rotating shaft. A top plate 12 is slidably connected inside the lower die base 1. Two ejector rods 13 are fixedly connected to the bottom of the top plate 12. One end of each connecting rod 11 is rotatably connected to the ejector rod 13 via a rotating shaft. A buffer component is provided on the upper surface of the top plate 12.

[0044] like Figures 1-5As shown, a multifunctional stamping die includes a lower die base 1. Two hydraulic rods 2 are fixedly connected to the upper surface of the lower die base 1. An upper die base 3 is fixedly connected to the top of the two hydraulic rods 2. An electric push rod 4 is fixedly connected inside the upper die base 3 to provide stamping force. A punch 5 is fixedly connected to one end of the electric push rod 4. A forming groove 6 and a fixing groove 7 are formed inside the lower die base 1. An adjusting component is provided inside the fixing groove 7. A first moving rod 8 and a second moving rod 9 are slidably connected inside the lower die base 1 to move the position of a limiting plate 10. A connecting component is provided at the top of each of the first moving rod 8 and the second moving rod 9. A limiting plate 10 is provided at one end of the connecting component. A connecting rod 11 is rotatably connected to the bottom of each of the first moving rod 8 and the second moving rod 9 through a rotating shaft to push an ejector rod 13 upward. A top plate 12 is slidably connected inside the lower die base 1 to eject the stamped workpiece. A connecting rod 11 is fixedly connected to the bottom of the top plate 12. There are two push rods 13, and one end of each of the two connecting rods 11 is rotatably connected to the push rods 13 via a rotating shaft. The upper surface of the top plate 12 is provided with a buffer assembly. The adjustment assembly includes a drive motor 19 fixedly connected to the inner wall of the fixed groove 7 to provide power. The output shaft of the drive motor 19 is fixedly connected to a double-acting screw 20 via a coupling. The surface of the double-acting screw 20 is threaded with two movable sleeves 21. The bottom ends of the first movable rod 8 and the second movable rod 9 are fixedly connected to the movable sleeves 21 respectively. The connection assembly includes a connecting screw hole 22 opened at one end of the first movable rod 8 and the second movable rod 9. The connecting screw hole 22 is threaded with a connecting screw 23 for quick installation and disassembly of the limiting plate 10. One end of each of the two connecting screws 23 is fixedly connected to the limiting plate 10. The buffer assembly includes multiple buffer springs 24 fixedly connected to the upper surface of the top plate 12. One end of each of the multiple buffer springs 24 is fixedly connected to a buffer top plate 25 to provide a buffering effect for the formed workpiece.

[0045] The working principle is as follows:

[0046] The connecting screw 23 and connecting screw hole 22 facilitate quick and easy connection of the limiting plate 10 to the first moving rod 8 and the second moving rod 9, respectively. Then, by placing the workpiece on the upper surface of the lower mold base 1, the drive motor 19 is activated, causing the bidirectional lead screw 20 to rotate. Under the action of the bidirectional thread, the two moving screw sleeves 21 slide in opposite directions, thereby causing the two connected limiting plates 10 to slide in opposite directions. This allows the limiting plates 10 to position the workpiece. Simultaneously, the bidirectional lead screw 20 rotates... The rotating shaft drives the connecting rod 11 to rotate, and the rotation of the connecting rod 11 pushes the ejector rod 13 to slide down. The ejector rod 13 drives the ejector plate 12, the buffer spring 24 and the buffer ejector plate 25 to slide down, so that the bottom of the ejector plate 12 abuts against the bottom of the forming groove 6, and the ejector plate 12 is reset. This makes it easy to limit the workpiece while resetting the ejector plate 12. When the workpiece is released from the limit, the ejector plate 12 can be pushed to slide up, and the ejector plate 12 pushes the stamped workpiece to be ejected, thus making it easy to achieve the multi-functional effect of increasing the stamping die.

[0047] In another embodiment, such as Figure 1 and Figure 4 As shown, each of the two limiting plates 10 has an installation groove 14 inside. Two sliding plates 15 are slidably connected inside the installation groove 14. Tension springs 16 are fixedly connected to the opposite side of the two sliding plates 15. The first limiting baffle 17 and the second limiting baffle 18 are fixedly connected to the non-opposing side of the two sliding plates 15, respectively.

[0048] The tension of the tension spring 16 pulls the two slide plates 15 to slide inside the mounting groove 14, which makes it easy to pull the first limit baffle 17 and the second limit baffle 18 to slide towards the middle, thus making it easy to simultaneously limit the workpiece from four sides.

[0049] In another embodiment, such as Figure 2 As shown, a limiting groove 26 is provided on one side of the inner wall of the fixed groove 7, and a limiting rod 27 is fixedly connected to the bottom of each of the two movable screw sleeves 21. One end of the limiting rod 27 is slidably connected inside the limiting groove 26.

[0050] The limiting groove 26 and the limiting rod 27 facilitate the position limiting of the movable screw sleeve 21 when it slides.

[0051] In another embodiment, such as Figure 1 and Figure 2 As shown, two sliding openings 28 are provided on the upper surface of the lower mold base 1, and one end of the first moving rod 8 and the second moving rod 9 are slidably connected inside the sliding opening 28.

[0052] The sliding opening 28 facilitates the sliding limit function of the first moving rod 8 and the second moving rod 9.

[0053] In another embodiment, such as Figure 3 As shown, a groove 29 is provided on one side of the upper mold base 3. One end of the limiting plate 10, the first limiting baffle 17 and the second limiting baffle 18 are slidably connected inside the groove 29. The first limiting baffle 17 and the second limiting baffle 18 are both L-shaped.

[0054] The groove 29 facilitates the sliding of the limiting plate 10, the first limiting baffle 17 and the second limiting baffle 18, which in turn facilitates the fitting of the lower mold base 1 and the upper mold base 3 together.

[0055] This application also discloses a method for using a multifunctional stamping die, comprising the following steps:

[0056] S1: Place the workpiece on the upper surface of the lower mold base 1; the adjustment component drives the moving component, which in turn drives the limiting plate 10 to move and limit the workpiece; at the same time, the moving component drives the ejector rod 13 and the top plate 12 to slide down through the connecting rod 11, so that the top plate 12 is reset.

[0057] S2: The hydraulic rod 2 drives the upper die holder 3 to move down, the electric push rod 4 works, and drives the punch 5 to descend and stamp the workpiece. After that, the upper die holder 3 and the punch 5 are reset.

[0058] S3: The adjusting component drives the moving component, which in turn drives the limiting plate 10 to move in the opposite direction. While releasing the workpiece from the limit, the moving component pushes the top rod 13 and the top plate 12 to slide upward through the connecting rod 11, and pushes out the stamped workpiece through the top plate 12.

[0059] In some embodiments, the adjustment assembly includes: a drive motor 19, a bidirectional lead screw 20, and a movable screw sleeve 21, and the specific steps include:

[0060] S1: Place the workpiece on the upper surface of the lower mold base 1; drive motor 19 drives the bidirectional lead screw 20 to work, the bidirectional lead screw 20 drives the moving component fixed by the moving screw sleeve 21 to move the limiting plate 10 to limit the workpiece; at the same time, the moving component drives the push rod 13 and the top plate 12 to slide down through the connecting rod 11, so that the top plate 12 is reset.

[0061] S2: The hydraulic rod 2 drives the upper die holder 3 to move down, the electric push rod 4 works, and drives the punch 5 to descend and stamp the workpiece. After that, the upper die holder 3 and the punch 5 are reset.

[0062] S3: Drive motor 19 drives bidirectional lead screw 20 to work. The bidirectional lead screw 20 drives the moving component fixed by moving screw sleeve 21, which in turn drives the limit plate 10 to move in the opposite direction. While releasing the workpiece from the limit, the moving component pushes the top rod 13 and the top plate 12 to slide upward through the connecting rod 11, and pushes out the stamped workpiece through the top plate 12.

[0063] In summary, this application discloses a multifunctional stamping die and its usage method, belonging to the field of stamping die technology. It includes a lower die base connected to an upper die base via a hydraulic rod. An electric push rod is fixedly connected inside the upper die base, with a punch fixedly connected to one end of the electric push rod. A forming groove and a fixing groove are formed inside the lower die base. An adjusting component and a moving component are arranged within the fixing groove. A limit plate is connected to the top of the moving component, and a push rod is connected to the bottom of the moving component via a connecting rod. The push rod is connected to a top plate. The adjusting component drives the moving component, which in turn moves the limit plate to limit the workpiece. Simultaneously, the connecting rod causes the push rod and top plate to slide down, resetting the top plate. This facilitates both limiting the workpiece position and resetting the top plate and push rod to their original positions. After stamping, the limited workpiece can be removed, and the stamped workpiece can be ejected. Furthermore, the buffer component provides a certain buffering effect on the stamping force.

[0064] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multifunctional stamping die, characterized in that, The device includes a lower mold base (1), on which two hydraulic rods (2) are provided. The top ends of the two hydraulic rods (2) are fixedly connected to an upper mold base (3). An electric push rod (4) is fixedly connected inside the upper mold base (3). A punch (5) is fixedly connected to one end of the electric push rod (4). A forming groove (6) is provided inside the lower mold base (1). Fixed grooves (7) are provided at both ends of the forming groove (6). An adjustment component and a moving component are provided inside the fixed groove (7). The adjustment component is parallel to the upper mold base (3) and is set at the bottom of the fixed groove (7). The moving component is set perpendicular to the adjustment component and is connected at one end to the adjustment component and at the other end to the limiting plate (10). A top plate (12) is provided inside the forming groove (6). Several push rods (13) are provided at the bottom of the top plate (12). The push rods (13) are connected to the bottom end of the moving component through a connecting rod (11). A buffer component is provided on the upper surface of the top plate (12). The moving component includes a first moving rod (8) and a second moving rod (9). The first moving rod (8) and the second moving rod (9) are slidably disposed inside the lower mold base (1) at both ends of the forming groove (6). The top ends of the first moving rod (8) and the second moving rod (9) are detachably connected to the limiting plate (10), and the bottom ends are connected to the adjusting component through the moving screw sleeve (21). The bottom ends of the first moving rod (8) and the second moving rod (9) are rotatably connected to the connecting rod (11), and the connecting rod (11) is rotatably connected to the top rod (13). The limiting plate (10) has an installation groove (14) inside, and two sliding plates (15) are slidably connected inside the installation groove (14). A tension spring (16) is fixedly connected between the two sliding plates (15). A first limiting baffle (17) and a second limiting baffle (18) are fixedly connected to the other side of the two sliding plates (15); and the first limiting baffle (17) and the second limiting baffle (18) are both L-shaped. The adjustment assembly includes a drive motor (19) fixedly connected to the inner wall of the fixed groove (7). The output shaft of the drive motor (19) is fixedly connected to a two-way lead screw (20) via a coupling. Two movable sleeves (21) are threaded onto the surface of the two-way lead screw (20). The bottom end of the adjustment assembly is fixedly connected to the movable sleeves (21) respectively. The buffer assembly includes a buffer top plate (25), which is disposed above the top plate (12), and a plurality of buffer springs (24) are disposed between the top plate (12) and the buffer top plate (25).

2. A multifunctional stamping die according to claim 1, characterized in that, The bottom of the fixed groove (7) is also provided with a limiting groove (26). The bottom of the two movable screw sleeves (21) are fixedly connected to one end of the limiting rod (27), and the other end of the limiting rod (27) is slidably connected to the limiting groove (26).

3. A multifunctional stamping die according to claim 1, characterized in that, The top ends of the first moving rod (8) and the second moving rod (9) are detachably connected to the limiting plate (10) via a connecting assembly. The connecting assembly includes a connecting screw hole (22) opened at one end of the first moving rod (8) and the second moving rod (9). The connecting screw hole (22) is internally threaded with a connecting screw (23). One end of each of the two connecting screws (23) is fixedly connected to the limiting plate (10).

4. A multifunctional stamping die according to claim 1, characterized in that, The lower surface of the upper mold base (3) is provided with a groove (29), and one end of the limiting plate (10) is slidably connected to the inside of the groove (29).

5. A method of using a multifunctional stamping die according to any one of claims 1 to 4, characterized in that, include: S1: Place the workpiece on the upper surface of the lower mold base (1); the adjustment component works to drive the moving component and then drive the limiting plate (10) to move to limit the workpiece; at the same time, the moving component drives the push rod (13) and the top plate (12) to slide down through the connecting rod (11) so that the top plate (12) is reset. S2: The hydraulic rod (2) drives the upper die seat (3) to move down, the electric push rod (4) works, drives the punch (5) to descend and press the workpiece, and then the upper die seat (3) and the punch (5) are reset. S3: The adjusting component drives the moving component, which in turn drives the limiting plate (10) to move in the opposite direction. While releasing the workpiece from the limit, the moving component pushes the top rod (13) and the top plate (12) to slide upward through the connecting rod (11), and pushes out the stamped workpiece through the top plate (12).

6. The method of using a multifunctional stamping die according to claim 5, characterized in that, The adjustment assembly includes: a drive motor (19), a bidirectional lead screw (20), and a movable screw sleeve (21). The specific steps of the usage method include: S1: Place the workpiece on the upper surface of the lower mold base (1); drive motor (19) drives the bidirectional lead screw (20) to work, the bidirectional lead screw (20) drives the moving component fixed by the moving screw sleeve (21) to move the limiting plate (10) to limit the workpiece; at the same time, the moving component drives the top rod (13) and the top plate (12) to slide down through the connecting rod (11) so that the top plate (12) is reset; S2: The hydraulic rod (2) drives the upper die seat (3) to move down, the electric push rod (4) works, drives the punch (5) to descend and press the workpiece, and then the upper die seat (3) and the punch (5) are reset. S3: The drive motor (19) drives the bidirectional lead screw (20) to work. The bidirectional lead screw (20) drives the moving component fixed by the moving screw sleeve (21) to move the limit plate (10) in the opposite direction. While releasing the limit on the workpiece, the moving component pushes the top rod (13) and the top plate (12) to slide upward through the connecting rod (11). The stamped workpiece is pushed out through the top plate (12).

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