Die structure for rod piece punch forming

Abstract

The utility model discloses a die structure for rod piece punch forming, and relates to the technical field of automobile part punch dies. Comprising an upper die fixing plate and a lower die fixing plate, the upper die fixing plate and the lower die fixing plate are accurately aligned through guide columns, a pressing plate is installed at the bottom of the upper die fixing plate, a forming male die, a forming female die and a core stripping mechanism are arranged at the bottom of the pressing plate, and the forming male die and the forming female die are matched to form a closed cavity. The core removing mechanism is used for automatically pushing the rod piece product to be separated from the forming male die in the punching return stroke. Full automation of rod piece stamping is achieved, efficiency and safety are remarkably improved, core removing efficiency is improved by more than 50%, and full-automatic operation is achieved. Manual errors are avoided, and the product percent of pass is increased to 99.5%; potential safety hazards are eliminated, and industrial injury risks are reduced; and the device is suitable for small-tonnage punching machines and is energy-saving and

Description

Technical Field

[0001] This utility model relates to the field of automotive parts stamping die technology, specifically to a die structure for rod stamping. Background Technology

[0002] In existing technology, rod stamping dies rely on internal core blocks for support when processing inwardly bent products. However, the opening space after bending is narrow, making it difficult to remove the internal core blocks, leading to the following problems:

[0003] Inefficient: Traditional molds require manual removal of the internal core block after stamping, but the internal space is small and difficult to operate manually, which is time-consuming and labor-intensive.

[0004] Quality risk: Manual placement of the chip may result in omissions or misalignment, leading to product scrap.

[0005] Safety hazard: Due to the large size and length of the product, manual removal of the material after stamping is required. The internal core block is attached to the product, making it inconvenient to remove and potentially causing hand injuries. Utility Model Content

[0006] The purpose of this utility model is to provide a mold structure for stamping rods, aiming to solve at least one of the technical problems existing in the prior art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A die structure for stamping rods includes an upper die fixing plate and a lower die fixing plate. The upper die fixing plate is precisely aligned with the lower die fixing plate via guide pillars. A pressure plate is installed at the bottom of the upper die fixing plate. A forming punch, a forming die, and a core-removing mechanism are provided at the bottom of the pressure plate. The forming punch and the forming die cooperate to form a closed cavity. The core-removing mechanism is used to automatically push the rod product away from the forming punch during the stamping return stroke.

[0009] As a further embodiment of this utility model: the core removal mechanism includes a stripping plate and a return spring, one end of the return spring is embedded in the pressure plate, and the other end of the return spring is fixedly connected to the stripping plate.

[0010] As a further embodiment of this utility model: the core-removing mechanism is provided on both the left and right sides of the forming punch.

[0011] As a further embodiment of this utility model: the front end of the forming punch is provided with a flange forming surface, and the forming die is provided with a flange groove that matches the forming punch.

[0012] As a further embodiment of this utility model: the top of the upper mold fixing plate is fixedly connected to the upper pad plate by a plurality of upper pad feet.

[0013] As a further embodiment of this utility model: an upper mold positioning post is also fixedly provided at the bottom of the pressure plate, and the upper mold positioning post penetrates the forming punch.

[0014] As a further embodiment of this utility model: a lower mold positioning block is fixedly provided on the top of the lower mold fixing plate, and a positioning component for fixing the rod is provided on the lower mold positioning block.

[0015] As a further embodiment of this utility model: the positioning component includes a rod baffle and a rod limiting plate, the rod baffle is provided at both ends of the lower mold positioning block, and the four rod limiting plates are evenly arranged on the top of the lower mold positioning block.

[0016] As a further embodiment of this utility model: the bottom of the lower mold fixing plate is fixedly connected to the lower pad plate by a plurality of lower pad feet.

[0017] As a further embodiment of this utility model: the mold structure is adapted to punch presses with a tonnage of ≤200T.

[0018] The beneficial effects of this utility model are:

[0019] This invention features a forming punch, a forming die, and a core-removing mechanism. The forming punch and die work together to form a closed cavity for stamping rods. The core-removing mechanism automatically pushes the rod away from the forming punch during the return stroke of the stamping process. This achieves full automation of rod stamping, significantly improving efficiency and safety, with core-removing efficiency increased by over 50%, enabling fully automatic operation. It avoids human error, increasing the product qualification rate to 99.5%, eliminating safety hazards and reducing the risk of workplace injuries. It is also compatible with small-tonnage stamping presses, saving energy and reducing consumption. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a front view of a mold structure for stamping rods according to the present invention;

[0022] Figure 2 This is a schematic diagram of the back of a mold structure for stamping rods according to the present invention;

[0023] Figure 3 This is a front view of a mold structure (including rods) for stamping rods according to the present invention;

[0024] Figure 4 This is a schematic diagram of the combined structure of the forming punch, forming die, and rod of this utility model;

[0025] Figure 5 This is a schematic diagram of the combined structure of the forming punch and forming die of this utility model;

[0026] Figure 6 This is a schematic diagram of the forming punch structure of this utility model;

[0027] Figure 7 This is a schematic diagram of the molding die structure of this utility model.

[0028] In the diagram: 1. Upper mold fixing plate; 2. Lower mold fixing plate; 3. Guide post; 4. Forming punch; 41. Flanging forming surface; 5. Forming die; 51. Flanging groove; 6. Stripper plate; 7. Upper pad; 8. Upper pad plate; 9. Upper mold positioning post; 10. Lower mold positioning block; 11. Rod baffle; 12. Rod limiting plate; 13. Rod; 14. Lower pad; 15. Lower pad plate; 16. Pressure plate. Detailed Implementation

[0029] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Example 1

[0033] Please see Figure 1-7As shown, Embodiment 1 of this utility model provides a mold structure for rod stamping, including an upper mold fixing plate 1 and a lower mold fixing plate 2. The upper mold fixing plate 1 is precisely aligned with the lower mold fixing plate 2 via guide posts 3. The top of the upper mold fixing plate 1 is fixedly connected to an upper pad 8 via multiple upper pads 7, and the bottom of the lower mold fixing plate 2 is fixedly connected to a lower pad 15 via multiple lower pads 14. A pressure plate 16 is installed at the bottom of the upper mold fixing plate 1. Please refer to [link / reference]. Figure 1 and Figure 2 As shown, the bottom of the pressure plate 16 is provided with a forming punch 4, a forming die 5, and a core-removing mechanism. Please refer to [link / reference]. Figure 6 As shown, the front end of the forming punch 4 is provided with a flange forming surface 41. Please refer to [link / reference]. Figure 7 As shown, the forming die 5 is provided with a flanged groove 51 that matches the forming punch 4. Please refer to [link / reference]. Figure 4 As shown, the forming punch 4 and forming die 5 cooperate to form a closed cavity for stamping the rod 13. The core-removing mechanism is used to automatically push the rod 13 product away from the forming punch 4 during the stamping return stroke.

[0034] In this embodiment, the forming punch 4 is provided with the core-removing mechanism on both the left and right sides. The core-removing mechanism includes a stripper plate 6 and a return spring (not shown in the figure). One end of the return spring is embedded in the pressure plate 16, and the other end of the return spring is fixedly connected to the stripper plate 6. During stamping, the die fixing plate 1 of the press is moved down, the forming punch 4 presses in the rod 13 to complete the flanging, the press returns, and the stripper plate 6 of the forming punch 4 is driven by the return spring to remove the material downward, so that the product moves forward slightly, and the product is removed under the action of the stripper plate 6.

[0035] In this embodiment, an upper mold positioning post 9 is also fixedly provided at the bottom of the pressure plate 16. The upper mold positioning post 9 penetrates the forming punch 4, which facilitates the positioning of the forming punch 4 and makes the fit between the forming punch 4 and the forming die 5 more precise.

[0036] Example 2

[0037] Similar to Embodiment 1, Embodiment 2 provides a mold structure for stamping rod 13, including an upper mold fixing plate 1 and a lower mold fixing plate 2. The upper mold fixing plate 1 is precisely aligned with the lower mold fixing plate 2 through guide pillars 3. A pressure plate 16 is installed at the bottom of the upper mold fixing plate 1. A forming punch 4, a forming die 5 and a core-removing mechanism are provided at the bottom of the pressure plate 16. The forming punch 4 and the forming die 5 cooperate to form a closed cavity. The core-removing mechanism is used to automatically push the rod 13 product away from the forming punch 4 during the stamping return stroke.

[0038] Please see Figure 2 and Figure 3As shown in Embodiment 1, in this embodiment, a lower die positioning block 10 is fixedly installed on the top of the lower die fixing plate 2, and a positioning assembly for fixing the rod 13 is provided on the lower die positioning block 10. The positioning assembly includes a rod baffle 11 and a rod limiting plate 12. Rod baffles 11 are provided at both ends of the lower die positioning block 10, and four rod limiting plates 12 are evenly arranged on the top of the lower die positioning block 10. The top of the lower die positioning block 10 is designed to match the curve of the rod 13 for placing the rod 13. At the same time, the rod baffles 11 at both ends of the lower die positioning block 10 limit the two ends of the rod 13 to prevent the rod 13 from moving laterally during the stamping process. The four rod limiting plates 12 block the two sides of the rod 13 to prevent the rod 13 from moving longitudinally during the stamping process, thereby stably positioning the rod 13 on the top of the lower die positioning block 10.

[0039] This mold features a lightweight design, with the upper mold assembly weighing ≤500kg, making it suitable for presses under 200T. By optimizing the core-removing mechanism, the required stamping force is reduced, resulting in a 30% reduction in energy consumption. It achieves full automation of the 13-bar stamping process, significantly improving efficiency and safety, with core-removing efficiency increased by over 50%, enabling fully automatic operation; eliminating human error and raising the product qualification rate to 99.5%; eliminating safety hazards and reducing the risk of workplace injuries; and it is suitable for small-tonnage presses, saving energy and reducing consumption.

[0040] The preferred embodiments of this utility model have been described in detail above and should not be considered as limiting the scope of this utility model. All equivalent changes and improvements made within the scope of the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A die structure for punch forming a rod, comprising an upper die fixed plate (1) and a lower die fixed plate (2), the upper die fixed plate (1) is accurately aligned with the lower die fixed plate (2) through guide columns (3), characterized in that: The upper die fixed plate (1) is provided with a pressing plate (16) at the bottom, a shaped male die (4) and a shaped female die (5) are arranged at the bottom of the pressing plate (16), and a core pulling mechanism is arranged, the shaped male die (4) and the shaped female die (5) cooperate to form a closed cavity, and the core pulling mechanism is used for automatically pushing a rod product (13) away from the shaped male die (4) during the return stroke of stamping.

2. A die structure for press forming a rod member according to claim 1, characterized in that: The core pulling mechanism comprises a stripping plate (6) and a return spring, one end of the return spring is embedded in the pressing plate (16), and the other end of the return spring is fixedly connected with the stripping plate (6).

3. A die structure for press forming a rod member according to claim 2, characterized in that: The shaped male die (4) is provided with the core pulling mechanism on the left and right sides.

4. The die structure for press forming a rod member according to claim 1, characterized in that: The shaped male die (4) is provided with a flanging forming surface (41) at the front end, and the shaped female die (5) is provided with a flanging groove (51) matched with the shaped male die (4).

5. The die structure for press forming a rod member according to claim 1, characterized in that: The upper die fixed plate (1) is fixedly connected with an upper base plate (8) through a plurality of upper supporting legs (7) at the top.

6. The die structure for press forming a rod member according to claim 1, characterized in that: The pressing plate (16) is further provided with an upper die positioning column (9) at the bottom, and the upper die positioning column (9) penetrates the shaped male die (4).

7. The die structure for press forming a rod member according to claim 1, characterized in that: The lower die fixed plate (2) is provided with a lower die positioning block (10) at the top, and the lower die positioning block (10) is provided with a positioning assembly for fixing the rod (13).

8. A die structure for press forming a rod member according to claim 7, characterized in that: The positioning assembly comprises a rod baffle (11) and a rod limiting plate (12), the lower die positioning block (10) is provided with the rod baffle (11) at both ends, and four rod limiting plates (12) are uniformly arranged on the top of the lower die positioning block (10).

9. The die structure for a punch forming of a rod member according to claim 1, characterized by: The lower die fixed plate (2) is fixedly connected with a lower base plate (15) through a plurality of lower supporting legs (14) at the bottom.

10. The die structure for a punch forming of a rod member according to claim 1, characterized by: The mold structure is suitable for a punch with a tonnage of ≤200T.

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