Forging die

Abstract

The utility model relates to the technical field of forging equipment, in particular to a forging die. Comprising a bottom plate, a lower die is arranged on the bottom plate, a cavity is formed in the lower die, the die further comprises a lifting plate and an upper die, a special-shaped hole is formed in the lifting plate, guide columns are arranged at the four corners of the bottom plate, guide holes matched with the guide columns are formed in the lifting plate, lug plates are arranged on the two sides of the upper die, and the lug plates are connected with the special-shaped hole. First through holes are formed in the lug plates, second through holes are formed in the two sides of the lifting plate, the lifting columns are located in the first through holes and the second through holes, and first cap parts at the tops of the lifting columns are located above the first through holes and cannot pass through the first through holes. And a second cap part at the lower end of the lifting column is positioned below the second through hole and cannot pass through the second through hole. According to the utility model, the demoulding failure is not easy to occur.

Description

Technical Field

[0001] The utility model relates to the technical field of forging equipment, in particular to a forging die. Background Art

[0002] Forging is divided into free forging and die forging, in which die forging refers to the process of obtaining forgings by compressing and deforming a metal blank in a forging die chamber with a certain shape. Die forging requires a die. Patent application number 202322555493.2 discloses a forging die, including a lower die and an upper die. The lower die is mounted on a base plate, and a cavity is provided on the lower die. A reset assembly is also provided on the base plate. Since the lifting plate in the reset assembly is pushed by a spring, when the formed workpiece is tightly combined with the cavity on the lower die, the force of the spring alone is often insufficient to pull the workpiece out of the cavity, resulting in demolding failure. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a forging die in view of the above-mentioned technical deficiencies.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a forging mold, including a base plate, a lower mold is arranged on the base plate, a cavity is arranged on the lower mold, and also includes a lifting plate and an upper mold, the lifting plate is provided with special-shaped holes, guide columns are arranged at the four corners of the base plate, and guide holes matching with the guide columns are arranged on the lifting plate, ear plates are arranged on both sides of the upper mold, a first through hole is arranged on the ear plates, and a second through hole is arranged on both sides of the lifting plate, the pulling column is located in the first through hole and the second through hole and is slidably connected to the two, the first cap portion on the top of the pulling column is located above the first through hole and it cannot pass through the first through hole, and the second cap portion at the lower end of the pulling column is located below the second through hole and it cannot pass through the second through hole.

[0005] To further optimize the technical solution, a threaded hole is provided at the lower end of the pulling column, a stud is provided on the upper side of the second cap portion, and the stud is threadedly connected to the threaded hole.

[0006] To further optimize the technical solution, a plurality of mounting holes are also provided on the base plate.

[0007] Compared with the prior art, the utility model has the following advantages: ear plates are provided on both sides of the upper die, a first through hole is provided on the ear plates, second through holes are provided on both sides of the lifting plate, the pulling column is slidably connected to the two through holes, and the two caps of the pulling column are respectively located above the first through hole and below the second through hole, so that the lifting plate is driven to rise by the lifting rod of the forging machine, the force is large, and demolding failure is not likely to occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A schematic diagram of the structure of a forging die.

[0009] Figure 2 It is a schematic diagram of the structure of the lifting column.

[0010] In the figure: 1, bottom plate; 11, mounting hole; 2, lower die; 3, guide column; 4, lifting plate; 5, lifting column; 51, first cap part; 52, threaded hole; 53, second cap part; 6, upper die; 61, ear plate. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0012] Specific implementation method: Combination Figure 1-2As shown, a forging die comprises a bottom plate 1, which is fixed on a forging machine when in use, a lower die 2 is arranged on the bottom plate 1, a cavity is arranged on the lower die 2, and a lifting plate 4 and an upper die 6 are also included. When in use, the upper die 6 is installed at the lower end of the lifting rod of the forging machine, the bottom of the upper die 6 is a shape matching the top of the formed workpiece, the lifting plate 4 is provided with a special-shaped hole, the special-shaped hole is aligned with the cavity, the four corners of the bottom plate 1 are provided with guide columns 3, the lifting plate 4 is provided with guide holes matching the guide columns 3, and both sides of the upper die 6 are provided with ear plates 6 1. A first through hole is provided on the ear plate 61, and second through holes are provided on both sides of the lifting plate 4. The lifting column 5 is located in the first through hole and the second through hole and is slidably connected to the two. The diameter of the lifting column 5 is smaller than the diameters of the two through holes to reduce friction. The first cap 51 at the top of the lifting column 5 is located above the first through hole and cannot pass through the first through hole. The second cap 53 at the lower end of the lifting column 5 is located below the second through hole and cannot pass through the second through hole. In actual use, the diameters of the two caps are larger than the diameters of the two through holes by a certain size. During forging, the upper die 6 descends, and under the action of gravity, the lifting plate 4 also descends. When the bottom surface of the lifting plate 4 contacts the top surface of the lower die 2, the lifting plate 4 will stop descending, while the upper die 6 continues to descend for forging. Before the bottom surface of the upper die 6 contacts the top surface of the lifting plate 4, the lower end of the pulling column 5 has already contacted the top surface of the bottom plate 1. At this time, the pulling column 5 also stops descending and slides relative to the ear plate 61. When the bottom surface of the upper die 6 contacts the top surface of the lifting plate 4, the upper die 6 is manipulated to rise. After it rises a certain distance, the top surface of the ear plate 61 contacts the bottom surface of the first cap portion 51 and drives the pulling column 5 to rise together. After continuing to rise a certain distance, the top surface of the second cap portion 53 contacts the bottom surface of the lifting plate 4, thereby driving it to rise together to pull the workpiece out of the cavity for demolding. Since the lifting rod of the forging machine drives the lifting plate 4 to rise, the force is large and it is not easy to fail in demolding.

[0013] Furthermore, a threaded hole 52 is provided at the lower end of the lifting column 5 , and a stud is provided on the upper side of the second cap portion 53 . The stud is threadedly connected to the threaded hole 52 , so that the second cap portion 53 and the lifting column 5 are detachably connected.

[0014] Furthermore, the base plate 1 is provided with a plurality of mounting holes 11 for easy installation on a forging machine.

[0015] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A forging die, comprising a base plate (1), a lower die (2) being arranged on the base plate (1), a cavity being arranged on the lower die (2), a lifting plate (4) and an upper die (6), the lifting plate (4) being arranged with a special-shaped hole, characterized in that: The four corners of the bottom plate (1) are provided with guide columns (3), the lifting plate (4) is provided with guide holes that cooperate with the guide columns (3), the two sides of the upper mold (6) are provided with ear plates (61), the ear plates (61) are provided with a first through hole, the two sides of the lifting plate (4) are provided with a second through hole, the lifting column (5) is located in the first through hole and the second through hole and is slidably connected to the two, the first cap (51) at the top of the lifting column (5) is located above the first through hole and cannot pass through the first through hole, and the second cap (53) at the lower end of the lifting column (5) is located below the second through hole and cannot pass through the second through hole.

2. A forging die according to claim 1, characterized in that: A threaded hole (52) is provided at the lower end of the lifting column (5), and a stud is provided on the upper side of the second cap portion (53), wherein the stud is threadably connected to the threaded hole (52).

3. A forging die according to any one of claims 1-2, characterized in that: The bottom plate (1) is also provided with a plurality of mounting holes (11).

Images