Anti-springback precision stamping die

Abstract

The utility model discloses an anti-springback type precision stamping die which comprises a lower base and an upper base, a supporting frame is arranged on the lower base, the upper base is horizontally arranged on the supporting frame, a lower die base is arranged in the lower base, the upper base is provided with an upper die and a driving moving structure, the upper die is located on the driving moving structure, and the lower die is located on the driving moving structure. The driving moving structure can drive the position of the upper die to move downwards, and a springback preventing structure is arranged on the side of the lower die base. After a product is stamped, the springback of a stamped part after demolding can be effectively controlled through the springback prevention structure, so that the size of the stamped part is closer to a design value, and the size deviation is reduced; and shape distortion caused by springback of a stamping part can be avoided, for example, the bending angle of a bent part is more accurate, and a plane part is smoother.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to an anti-springback precision stamping die. Background Technology

[0002] Stamping dies are specialized equipment used in cold stamping processes to shape metal or non-metal materials into parts or semi-finished products. In numerous manufacturing sectors such as automotive, electronics, home appliances, and aerospace, stamping technology is widely used due to its advantages of high efficiency, high precision, and low cost. It is used to produce parts of various shapes and sizes, such as automotive body panels, electronic component housings, and home appliance panels. In the traditional stamping process, while the material undergoes plastic deformation under pressure, it also experiences elastic deformation. When the pressure is released, the elastically deformed portion of the material recovers, causing deviations in the shape and dimensions of the stamped part from the design requirements—a phenomenon known as springback.

[0003] However, existing molds cannot promptly counteract or eliminate springback when it occurs. Springback causes deviations between the dimensions of the stamped parts and the design dimensions, making it difficult to meet high-precision assembly requirements and affecting the subsequent use of the product. Utility Model Content

[0004] The purpose of this invention is to provide a springback-resistant precision stamping die to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A springback-resistant precision stamping die includes a lower base and an upper base. A support frame is provided on the lower base, and the upper base is horizontally mounted on the support frame. A lower die holder is provided inside the lower base, and an upper die and a drive moving structure are provided on the upper base. The upper die is located on the drive moving structure, and the drive moving structure can drive the position of the upper die to move downward. An anti-springback structure is provided on the side of the lower die holder.

[0007] In a further technical solution, the driving moving structure includes a driving cylinder, a moving frame, and two moving rods. The driving cylinder is vertically mounted on the top of the upper base. The moving frame is connected to the telescopic end of the driving cylinder. The two moving rods are symmetrically mounted on the moving frame, and the moving rods slide in cooperation with the upper base.

[0008] A further technical solution is provided, wherein the mold includes an upper mold base and a mounting plate, and two sliders are respectively provided at both ends of the mounting plate. The mounting plate is slidably connected to the moving frame through the corresponding sliders. A number of compression springs are provided between the mounting plate and the moving frame at equal intervals. The upper mold base is located at the bottom of the mounting plate.

[0009] In a further technical solution, four through slots are provided on the side wall of the movable frame.

[0010] A further technical solution is provided, wherein the anti-rebound structure includes two mounting seats, which are symmetrically arranged on both sides of the lower mold base. Each mounting seat is provided with two moving cylinders, and each moving cylinder has a horizontal plate on its telescopic end. A vertical plate is provided on the side of the through groove of the moving frame.

[0011] In a further technical solution, the end of the horizontal plate is provided with a first inclined surface, and the top of the vertical plate is provided with a second inclined surface, with the first inclined surface and the second inclined surface slidingly engaged.

[0012] The beneficial effects of this utility model are:

[0013] After stamping, this invention effectively controls the amount of springback of the stamped parts after demolding through the anti-springback structure, making its dimensions closer to the design value and reducing dimensional deviations; it can also avoid shape distortion caused by springback, such as more accurate bending angle of bent parts and flatter flat parts.

[0014] This invention prevents springback after stamping. When the upper die base is pressed downwards, causing the through groove of the moving frame to be located at the horizontal plate, the corresponding moving cylinder operates to drive the horizontal plate to move horizontally. The movement of the horizontal plate causes the first inclined surface to move, which in turn causes the first inclined surface to move towards the second inclined surface, resulting in the vertical plate moving downwards. This causes the mounting plate to move downwards on the moving frame, thus clamping the stamped product to prevent springback, improving product quality, increasing production efficiency, reducing production costs, and enhancing the versatility of the mold.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] Figure 1 : A three-dimensional structural diagram of this utility model.

[0017] Figure 2 : Front view of this utility model.

[0018] Figure 3 : A three-dimensional structural diagram of the upper mold and the driving movement structure in this utility model.

[0019] Figure 4 : Front view of the upper mold and driving moving structure of this utility model.

[0020] Figure 5 : A three-dimensional structural diagram of the anti-rebound structure of this utility model.

[0021] Reference numerals: lower base 1, support frame 11, lower mold base 12, upper base 2, upper mold 3, upper mold base 31, mounting plate 32, compression spring 34, drive moving structure 4, drive cylinder 41, moving frame 42, moving rod 43, through groove 44, anti-rebound structure 5, mounting base 51, moving cylinder 52, horizontal plate 53, vertical plate 54, first inclined surface 55, second inclined surface 56. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please refer to Figure 1-5 As shown; this utility model provides a spring-back anti-rebound precision stamping die technical solution: a spring-back anti-rebound precision stamping die includes a lower base 1 and an upper base 2. The lower base 1 is provided with a support frame 11, and the upper base 2 is horizontally arranged on the support frame 11. The lower base 1 is provided with a lower die seat 12, and the upper base 2 is provided with an upper die 3 and a driving moving structure 4. The upper die 3 is located on the driving moving structure 4, and the driving moving structure 4 can drive the position of the upper die 3 to move downward. A spring-back anti-rebound structure 5 is provided on the side of the lower die seat 12.

[0024] After the product is stamped, the anti-springback structure 5 can effectively control the amount of springback of the stamped part after demolding, making its size closer to the design value and reducing dimensional deviation; it can avoid shape distortion of the stamped part caused by springback, such as more accurate bending angle of bent parts and flatter flat parts.

[0025] In this embodiment, refer to Figure 3 and Figure 4 As shown, the driving and moving structure 4 includes a driving cylinder 41, a moving frame 42, and two moving rods 43. The driving cylinder 41 is vertically mounted on the top of the upper base 2. The moving frame 42 is connected to the telescopic end of the driving cylinder 41. The two moving rods 43 are symmetrically arranged on the moving frame 42, and the moving rods 43 are slidably engaged with the upper base 2.

[0026] In this embodiment, refer to Figure 3 and Figure 4 As shown, the mold includes an upper mold base 31 and a mounting plate 32. Two sliders are provided at both ends of the mounting plate 32. The mounting plate 32 is slidably connected to the moving frame 42 through the corresponding sliders. A number of compression springs 34 are provided between the mounting plate 32 and the moving frame 42 at equal intervals. The upper mold base 31 is located at the bottom of the mounting plate 32.

[0027] During the stamping process, the drive cylinder 41 drives the moving frame 42 to move downward on the upper die holder 31 via two moving rods 43. The downward movement of the moving frame 42 causes the upper die holder 31 to move downward, thus stamping the product placed in the lower die holder 12. During the stamping process, the mounting plate 32 can move on the moving frame 42 via four sliders, thereby compressing the compression spring 34 to buffer the impact force between the die and the workpiece during the stamping process. This buffering can alleviate the impact force between the die and the workpiece during the stamping process, avoid direct and violent collision between the die and the workpiece, thereby reducing wear on the die surface and extending the service life of the die.

[0028] In this embodiment, refer to Figure 3 and Figure 5 As shown, the side wall of the movable frame 42 is provided with four through slots 44; the anti-rebound structure 5 includes two mounting seats 51, which are symmetrically arranged on both sides of the lower mold base. Each mounting seat 51 is provided with two moving cylinders 52, and each moving cylinder 52 is provided with a horizontal plate 53 at its telescopic end. A vertical plate 54 is provided on the side of the through slots 44 of the movable frame 42; the end of the horizontal plate 53 is provided with a first inclined surface 55, and the top of the vertical plate 54 is provided with a second inclined surface 56. The first inclined surface 55 and the second inclined surface 56 are slidably engaged.

[0029] It should be noted that the dimensions of the through groove 44 are much larger than the dimensions of the horizontal plate 53.

[0030] During the anti-springback process after stamping, when the upper die base 31 is pressed downwards and the through groove 44 of the moving frame 42 is located at the horizontal plate 53, the corresponding moving cylinder 52 works to drive the horizontal plate 53 to move horizontally. The movement of the horizontal plate 53 drives the first inclined surface 55 to move, which in turn causes the first inclined surface 55 to move relative to the second inclined surface 56, causing the vertical plate 54 to move downwards. This causes the mounting plate 32 to move downwards on the moving frame 42, thus pressing the stamped product to prevent springback, improving product quality, increasing production efficiency, reducing production costs, and enhancing mold versatility.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A non-rebound precision press die characterized by: It includes a lower base (1) and an upper base (2). The lower base (1) is provided with a support frame (11). The upper base (2) is horizontally arranged on the support frame (11). The lower base (1) is provided with a lower mold seat (12). The upper base (2) is provided with an upper mold (3) and a driving moving structure (4). The upper mold (3) is located on the driving moving structure (4). The driving moving structure (4) can drive the position of the upper mold (3) to move downward. The lower mold seat (12) is provided with an anti-rebound structure (5) on its side. The driving moving structure (4) includes a driving cylinder (41), a moving frame (42) and two moving rods (43). The driving cylinder (41) is vertically mounted on the top of the upper base (2). The moving frame (42) is connected to the telescopic end of the driving cylinder (41). The two moving rods (43) are symmetrically mounted on the moving frame (42). The moving rods (43) are slidably engaged with the upper base (2). The anti-rebound structure (5) includes two mounting seats (51), which are symmetrically arranged on both sides of the lower mold base. Each mounting seat (51) is provided with two moving cylinders (52), and each moving cylinder (52) is provided with a horizontal plate (53) on its telescopic end. A vertical plate (54) is provided on the side of the through groove (44) of the moving frame (42).

2. The anti-rebound precision stamping die according to claim 1, characterized in that: The mold includes an upper mold base (31) and a mounting plate (32). Two sliders are provided at both ends of the mounting plate (32). The mounting plate (32) is slidably connected to the moving frame (42) through the corresponding sliders. Several compression springs (34) are provided between the mounting plate (32) and the moving frame (42) at equal intervals. The upper mold base (31) is located at the bottom of the mounting plate (32).

3. The anti-rebound precision stamping die according to claim 2, wherein: The side wall of the movable frame (42) is provided with four through slots (44).

4. The anti-rebound precision stamping die according to claim 1, wherein: The horizontal plate (53) has a first inclined surface (55) at its end, and the vertical plate (54) has a second inclined surface (56) at its top. The first inclined surface (55) and the second inclined surface (56) slide together.

Images