Forging die for precise connecting rod forge piece preparation

Abstract

The utility model discloses a forging die for preparing precise connecting rod forgings, relates to the field of forging dies, and aims to solve the problems that a set of dies needs to be developed according to different angle sizes due to numerous models of existing connecting rod forgings in the prior art, and a large number of dies occupy the production space. Four first positioning columns are symmetrically and fixedly connected to the middle of the upper end face of the positioning plate, a middle combined mold is connected to the middle of the upper end of the positioning plate, a connecting rod middle section mold groove is formed in the middle of the upper end of the middle combined mold, and four second positioning columns are symmetrically and fixedly connected to the two sides of the upper end face of the positioning plate; the two sides of the upper end face of the positioning plate are both connected with end combination molds, and the upper end faces of the two end combination molds are provided with a first connecting rod end mold groove and a second connecting rod end mold groove correspondingly.

Description

Technical Field

[0001] The utility model relates to the field of forging dies, and specifically relates to a forging die for preparing precision connecting rod forgings. Background Technique

[0002] A forging die refers to a tool that can form a blank into a die forging. A forging die is an essential key process equipment in die forging production. It is a tool that needs to be used in each stroke of the equipment and plays a crucial role in die forging production. A forging die is a die used in the forging process. Under the action of external force, the raw material undergoes plastic deformation in the forging die to obtain the required shape and size of the part. Forging dies can be divided into hot forging dies, warm forging dies, and cold forging dies according to different forging temperatures. Hot forging dies can be further divided into hammer forging dies, screw press forging dies, mechanical press forging dies, upsetting dies, and hydraulic press forging dies, etc., according to different equipment. When die forging on a press, a die set needs to be designed and processed, and in the forging process, blank-making (such as roll forging, cross wedge rolling) dies, trimming dies, punching dies, sizing dies, cold coining dies, etc. are also required. These dies and devices also belong to the category of forging dies.

[0003] For example, the authorized announcement number is CN 217701215 U, a gear forging die, including a die cover plate, a gear-shaped forging die body, a support table, and an enlarged foot. The gear-shaped forging die body is welded to the top of the support table. The outer surface layer of the gear-shaped forging die body is electroplated with a strengthening layer. A circular groove is arranged in the gear-shaped forging die body. The outer side of the circular groove is equidistantly welded with limiting rods to prevent displacement during forging, and the top ends of the limiting rods penetrate through the gear-shaped forging die body. This new type of forging die can improve the overall strength and prevent displacement during forging, and is suitable for wide promotion and use.

[0004] Due to the large number of existing connecting rod forging models, a set of dies needs to be developed according to different angular dimensions, resulting in a large number of dies occupying production space. Therefore, there is an urgent need in the market to develop a forging die for preparing precision connecting rod forgings to help people solve existing problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a forging die for preparing precision connecting rod forgings to solve the problem that due to the large number of existing connecting rod forging models, a set of dies needs to be developed according to different angular dimensions, resulting in a large number of dies occupying production space as mentioned in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A forging die for preparing a precision connecting rod forging, including a positioning plate, four first positioning columns are symmetrically and fixedly connected to the middle of the upper end surface of the positioning plate, a middle combined die is connected to the middle of the upper end of the positioning plate, a connecting rod middle section die groove is arranged in the middle of the upper end of the middle combined die, four second positioning columns are symmetrically and fixedly connected to both sides of the upper end surface of the positioning plate, end combined dies are connected to both sides of the upper end surface of the positioning plate, and a first connecting rod end die groove and a second connecting rod end die groove are respectively arranged on the upper end surfaces of the two end combined dies.

[0007] Preferably, first circular grooves are arranged at the front and rear ends on both sides inside the middle combined die, and first bolt holes are arranged between the upper ends of the first circular grooves and the upper end surface of the middle combined die.

[0008] Preferably, the four first positioning columns are respectively inserted into the four first circular grooves inside the middle combined die, a first thread groove is arranged at the upper end inside the first positioning column, and the middle combined die and the first positioning column are fixed by inserting a first bolt into the first bolt hole and threadedly connecting with the first thread groove.

[0009] Preferably, second circular grooves are arranged at the front and rear ends on both sides inside the end combined die, and second bolt holes are arranged between the upper ends of the second circular grooves and the upper end surface of the end combined die.

[0010] Preferably, the four second positioning columns are respectively inserted into the four second circular grooves inside the end combined die, a second thread groove is arranged at the upper end inside the second positioning column, and the end combined die and the second positioning column are fixed by inserting a second bolt into the second bolt hole and threadedly connecting with the second thread groove.

[0011] Preferably, T-shaped limiting parts are arranged at the front and rear ends in the middle of both end faces of the middle combined die, and T-shaped limiting grooves are arranged at the front and rear ends in the middle of the inner end faces of the two end combined dies.

[0012] Preferably, the T-shaped limiting parts on both sides of the middle combined die respectively slide into the T-shaped limiting grooves inside the inner sides of the two end combined dies.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. In this utility model, through the setting of the middle combined die and the end combined die, four first positioning columns position the middle combined die on the upper end face of the positioning plate, ensuring the stable position of the middle combined die. At the same time, the middle combined die can be disassembled from the positioning plate, facilitating the replacement of the middle combined die with different connecting rod middle section die slots. Four second positioning columns position the end combined die on the upper end face of the positioning plate, ensuring the stable position of the end combined die. At the same time, the end combined die can be disassembled from the positioning plate, facilitating the replacement of the end combined die with different first connecting rod end die slots and second connecting rod end die slots, enabling the forging die to be combined and connected, and realizing the adjustment of the combination mode of the forging die according to the connecting rod size.

[0015] 2. In this utility model, through the setting of the first bolt and the second bolt, the middle combined die and the first positioning column are fixed by inserting the first bolt into the first bolt hole and threadedly connecting with the first thread groove, enabling the middle combined die to be disassembled from the positioning plate for easy replacement. The end combined die and the second positioning column are fixed by inserting the second bolt into the second bolt hole and threadedly connecting with the second thread groove, enabling the end combined die to be disassembled from the positioning plate for easy replacement.

[0016] 3. In this utility model, through the setting of the T-shaped limit groove, the two T-shaped limit parts on both sides of the middle combined die slide into the inner T-shaped limit grooves of the two end combined dies respectively. After the middle combined die and the end combined die are connected on the positioning plate, the middle combined die and the end combined die are aligned, so that both sides of the connecting rod middle section die slot are respectively connected and aligned with the first connecting rod end die slot and the second connecting rod end die slot. Description of the Drawings

[0017] Figure 1 It is the front view of a forging die for preparing precision connecting rod forgings of the present utility model;

[0018] Figure 2 It is the main sectional view of the present utility model;

[0019] Figure 3 It is the side sectional view of the present utility model;

[0020] Figure 4 It is the enlarged detail view A of the present utility model.

[0021] In the figure: 1. positioning plate; 2. first positioning post; 201. first thread groove; 3. second positioning post; 301. second thread groove; 4. middle combined die; 401. T-shaped limiting part; 402. first circular groove; 403. first bolt hole; 404. connecting rod middle section die groove; 5. end combined die; 501. T-shaped limiting groove; 502. second circular groove; 503. second bolt hole; 504. first connecting rod end die groove; 505. second connecting rod end die groove; 6. first bolt; 7. second bolt. Specific implementation mode

[0022] Next, in combination with the attached drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Please refer to Figures 1-4 , an embodiment provided by the present invention: a forging die for preparing precision connecting rod forgings, including a positioning plate 1. Four first positioning posts 2 are symmetrically and fixedly connected to the middle of the upper end surface of the positioning plate 1. The middle part of the upper end of the positioning plate 1 is connected with a middle combined die 4. A connecting rod middle section die groove 404 is arranged in the middle of the upper end of the middle combined die 4. Four second positioning posts 3 are symmetrically and fixedly connected to both sides of the upper end surface of the positioning plate 1. End combined dies 5 are connected to both sides of the upper end surface of the positioning plate 1. A first connecting rod end die groove 504 and a second connecting rod end die groove 505 are respectively arranged on the upper end surfaces of the two end combined dies 5.

[0024] Furthermore, first circular grooves 402 are arranged at the front and rear ends on both sides inside the middle combined die 4. A first bolt hole 403 is arranged between the upper end of the first circular groove 402 and the upper end surface of the middle combined die 4.

[0025] Furthermore, the four first positioning posts 2 are respectively inserted into the four first circular grooves 402 inside the middle combined die 4. A first thread groove 201 is arranged at the upper end inside the first positioning post 2. The middle combined die 4 and the first positioning post 2 are fixedly connected by inserting a first bolt 6 into the first bolt hole 403 and threadedly connecting with the first thread groove 201. The position of the middle combined die 4 on the upper end surface of the positioning plate 1 is positioned by the four first positioning posts 2 to ensure the stable position of the middle combined die 4. At the same time, the middle combined die 4 can be disassembled from the positioning plate 1, which is convenient for replacing the middle combined die 4 with different connecting rod middle section die grooves 404.

[0026] Furthermore, second circular grooves 502 are arranged at the front and rear ends on both sides inside the end combined die 5. A second bolt hole 503 is arranged between the upper end of the second circular groove 502 and the upper end surface of the end combined die 5.

[0027] Further, the four second positioning posts 3 are respectively inserted into the four second circular grooves 502 inside the end combination die 5. A second threaded groove 301 is provided at the upper end inside the second positioning post 3. The end combination die 5 and the second positioning post 3 are fixed by inserting a second bolt 7 into the second bolt hole 503 and threadedly connecting it with the second threaded groove 301. The end combination die 5 is positioned at the upper end face of the positioning plate 1 through the four second positioning posts 3 to ensure the stable position of the end combination die 5. At the same time, the end combination die 5 can be disassembled from the positioning plate 1, which is convenient for replacing the end combination die 5 with different first connecting rod end die grooves 504 and second connecting rod end die grooves 505.

[0028] Further, T-shaped limiting parts 401 are provided at the front and rear ends of the middle parts of the two side end faces of the middle combination die 4, and T-shaped limiting grooves 501 are provided at the front and rear ends of the middle parts of the inner end faces of the two end combination dies 5.

[0029] Further, the T-shaped limiting parts 401 on both sides of the middle combination die 4 are respectively slid into the T-shaped limiting grooves 501 inside the two end combination dies 5. After the middle combination die 4 and the end combination die 5 are connected on the positioning plate 1, the middle combination die 4 and the end combination die 5 are aligned, so that both sides of the connecting rod middle die groove 404 are respectively connected and aligned with the first connecting rod end die groove 504 and the second connecting rod end die groove 505.

[0030] Working principle: When in use, according to the connecting rod size, select a suitable middle combined die 4 and two end combined dies 5. Place a middle combined die 4 and two end combined dies 5 on the positioning plate 1. Four first positioning columns 2 are symmetrically and fixedly connected to the middle of the upper end surface of the positioning plate 1. The four first positioning columns 2 are respectively inserted into four first circular grooves 402 inside the middle combined die 4. A first threaded groove 201 is provided at the upper end inside the first positioning column 2. Between the middle combined die 4 and the first positioning column 2, a first bolt 6 is inserted into the first bolt hole 403 and threadedly connected and fixed with the first threaded groove 201. The position of the middle combined die 4 on the upper end surface of the positioning plate 1 is positioned by the four first positioning columns 2 to ensure the stable position of the middle combined die 4. Four second positioning columns 3 are symmetrically and fixedly connected to both sides of the upper end surface of the positioning plate 1. The four second positioning columns 3 are respectively inserted into four second circular grooves 502 inside the end combined die 5. A second threaded groove 301 is provided at the upper end inside the second positioning column 3. Between the end combined die 5 and the second positioning column 3, a second bolt 7 is inserted into the second bolt hole 503 and threadedly connected and fixed with the second threaded groove 301. The position of the end combined die 5 on the upper end surface of the positioning plate 1 is positioned by the four second positioning columns 3 to ensure the stable position of the end combined die 5. T-shaped limiting parts 401 are provided at the front and rear ends of the middle of both side end faces of the middle combined die 4, and T-shaped limiting grooves 501 are provided at the front and rear ends of the middle of the inner side end faces of the two end combined dies 5. The T-shaped limiting parts 401 on both sides of the middle combined die 4 are respectively slid into the T-shaped limiting grooves 501 inside the inner sides of the two end combined dies 5. After the middle combined die 4 and the end combined die 5 are connected on the positioning plate 1, the middle combined die 4 and the end combined die 5 are aligned, so that both sides of the middle connecting rod die groove 404 are respectively connected and aligned with the first connecting rod end die groove 504 and the second connecting rod end die groove 505, and then the connecting rod forging can be carried out.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A forging die for preparing a precision connecting rod forging, comprising a positioning plate (1), characterized in that: Four first positioning columns (2) are symmetrically fixedly connected to the middle of the upper end surface of the positioning plate (1), a middle combined mold (4) is connected to the middle of the upper end of the positioning plate (1), and a connecting rod middle section mold groove (404) is provided in the middle of the upper end of the middle combined mold (4), four second positioning columns (3) are symmetrically fixedly connected to both sides of the upper end surface of the positioning plate (1), and an end combined mold (5) is connected to both sides of the upper end surface of the positioning plate (1), and the upper end surfaces of the two end combined molds (5) are respectively provided with a first connecting rod end mold groove (504) and a second connecting rod end mold groove (505).

2. A forging die for preparing a precision connecting rod forging according to claim 1, characterized in that: First circular grooves (402) are provided at both front and rear ends of both sides inside the middle combined mold (4), and first bolt holes (403) are provided between the upper end of the first circular groove (402) and the upper end surface of the middle combined mold (4).

3. A forging die for preparing a precision connecting rod forging according to claim 2, characterized in that: The four first positioning columns (2) are respectively inserted into four first circular grooves (402) inside the middle combined mold (4); a first thread groove (201) is provided at the upper end inside the first positioning column (2); and a first bolt (6) is inserted into the first bolt hole (403) between the middle combined mold (4) and the first positioning column (2) and is threadedly connected and fixed with the first thread groove (201).

4. The forging die for preparing a precision connecting rod forging according to claim 1, characterized in that: Second circular grooves (502) are provided at both front and rear ends of the end head assembly mold (5), and second bolt holes (503) are provided between the upper end of the second circular groove (502) and the upper end surface of the end head assembly mold (5).

5. A forging die for preparing a precision connecting rod forging according to claim 4, characterized in that: The four second positioning columns (3) are respectively inserted into the four second circular grooves (502) inside the end assembly mold (5); the second positioning columns (3) are provided with second thread grooves (301) at the upper ends thereof; the end assembly mold (5) and the second positioning columns (3) are connected to each other via second bolts (7) inserted into the second bolt holes (503) and threadedly connected to the second thread grooves (301).

6. The forging die for preparing a precision connecting rod forging according to claim 1, characterized in that: T-shaped limiting portions (401) are provided at both ends of the middle of the end surfaces on both sides of the middle combined mold (4), and T-shaped limiting grooves (501) are provided at both ends of the middle of the inner end surfaces of the two end combined molds (5).

7. A forging die for preparing a precision connecting rod forging according to claim 6, characterized in that: The T-shaped limiting portions (401) on both sides of the middle combined mold (4) slide into the inner T-shaped limiting grooves (501) of the two end combined molds (5) respectively.

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