A closed-die forging die for a column socket

Abstract

The utility model belongs to the technical field of forging die, concretely relates to a column nest closed forging die, including upper die holder and lower die holder, the upper die holder is fixedly connected with forging upper die on, be equipped with connecting hole on the lower die holder, be equipped with at least two blocks of forming side plate in the connecting hole, and the forming side plate and the bottom of connecting hole form forming cavity, the connecting hole is round hole, and the side of forming side plate is attached with the side of connecting hole, and the side of forming side plate is corresponding cambered surface. Through the structural setting of forming side plate, only need to process forming side plate in the die processing process, greatly improve the processing efficiency of die, improve the production efficiency. The connecting hole is round hole, and the side of forming side plate is corresponding cambered surface, and then can evenly distribute the force in the forming process to the outside of forming side plate and lower die, and then overcome the problem of cracking of existing square die four corners stress, greatly improve the overall life of die.

Description

Technical Field

[0001] This utility model belongs to the field of forging die technology, specifically relating to a closed-type column-and-socket forging die. Background Technology

[0002] like Figure 5 As shown, in traditional processes, since both the column socket and column cap forgings are square, the closed forging dies are also square in structure. Due to the die structure and the continuous force applied to the surrounding area during the forging process, these dies often crack at the corners, making them unsuitable for mass production. Furthermore, common machining dies require machining the entire upper and lower die as a single piece, resulting in low processing efficiency. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a closed-type column-and-socket forging die, which can distribute the stress generated during processing and reduce the risk of die cracking.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A closed-type column-and-socket forging die includes an upper die base and a lower die base. A forging upper die is fixedly connected to the upper die base, and a connecting hole is provided on the lower die base. At least two forming side plates are provided in the connecting hole, and a bottom plate is provided at the bottom of the connecting hole. A forming cavity is formed between the forming side plates and the bottom plate. The connecting hole is a circular hole, and the side of the forming side plate fits against the side of the connecting hole. The side of the forming side plate is a corresponding arc surface.

[0005] It also includes a reinforcing hoop, which is fitted onto the upper end of the lower mold base.

[0006] It also includes two outer positioning plates, which are used to clamp and fix the lower mold base.

[0007] A guide sleeve is fixedly connected to the outer positioning plate, and a guide post that is slidably connected to the guide sleeve is fixedly connected to the upper mold base.

[0008] The reinforcing hoop has a notch that mates with the guide sleeve, and the guide sleeve can be inserted into the notch.

[0009] The molded side plate consists of four pieces, and the contact surface between the four molded side plates is an inclined surface.

[0010] One of the molded side plates is equipped with a positioning pin between itself and the lower mold base.

[0011] The locating pin is waist-shaped.

[0012] Positioning marks are provided on the upper surfaces of the lower mold base and the forming side plate.

[0013] The lower mold base is cylindrical in shape.

[0014] Compared with the prior art, the advantages of this utility model are: By using the structure of forming side plates and bottom plates, only the forming side plates and bottom plates need to be processed during the mold processing, which greatly improves the processing efficiency of the mold and increases production efficiency.

[0015] The connecting hole is a circular hole, and the side of the forming side plate is a corresponding arc surface. This allows the force during the forming process to be evenly distributed to the outer side of the forming side plate and the lower mold, thereby overcoming the problem of cracking at the four corners of the existing square mold and greatly improving the overall life of the mold.

[0016] A reinforcing hoop is also installed. By placing the reinforcing hoop on the outside of the lower mold, the risk of mold cracking can be further reduced.

[0017] It is equipped with outer positioning plates, which can clamp and fix the lower mold base through the two outer positioning plates; at the same time, a guide sleeve is provided on it. Attached Figure Description

[0018] Figure 1 This is a top view of the lower mold base of this utility model; Figure 2 This is a schematic diagram of the usage state of this utility model; Figure 3 This is a schematic diagram of the connection structure between the lower mold base and the lower worktable of this utility model; Figure 4 yes Figure 3 A cross-sectional view of the structure shown; Figure 5 This is a schematic diagram of the structure of the forging after final forging.

[0019] Wherein: 1 is the upper die base, 2 is the lower die base, 3 is the forging upper die, 4 is the connecting hole, 40 is the base plate, 5 is the forming side plate, 6 is the forming cavity, 7 is the arc surface, 8 is the reinforcing hoop, 9 is the outer positioning plate, 10 is the guide sleeve, 11 is the guide post, 12 is the notch, 13 is the positioning pin, 14 is the positioning mark, 15 is the blank, 16 is the upper worktable, 17 is the lower worktable, and 18 is the pad. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0021] like Figures 1 to 4As shown, a closed-type forging die includes an upper die base 1 and a lower die base 2. A forging upper die 3 is fixedly connected to the upper die base 1, and the forging upper die 3 can be fixedly connected to the upper die base 1 by bolts. A connecting hole 4 is provided on the lower die base 2, and at least two forming side plates 5 are provided in the connecting hole 4. A bottom plate 40 is placed at the bottom of the connecting hole 4. A forming cavity 6 is formed between the forming side plates 5 and the bottom plate 40.

[0022] Depending on the product, the base plate 40, forming side plate 5, and forging upper die 3 can be replaced to complete the forging of different products.

[0023] In use, the upper die holder 1 is fixed to the upper worktable 16 of the hydraulic press, and the lower die holder 2 is fixedly connected to the lower worktable 17 of the hydraulic press. Specifically, a pad 18 can be provided between the upper die holder 1 and the upper worktable 16, and between the lower die holder 2 and the lower worktable 17. The upper die holder 1 and the pad 18 are fixedly connected by bolts, and the pad 18 is fixedly connected to the upper worktable 16 by bolts; the lower die holder 2 and the pad 18 are also fixedly connected by bolts, and the pad 18 is fixedly connected to the upper worktable 16 by bolts.

[0024] The blank 15 is placed into the forming cavity 6, and the upper die seat 1 is moved down by the upper worktable 16, so that the forging upper die 3 extends into the forming cavity 6 to apply pressure to the blank 15, causing it to undergo plastic deformation.

[0025] The connecting hole 4 is circular, and the side of the forming side plate 5 fits into the side of the connecting hole 4. The side of the forming side plate 5 is a corresponding arc surface 7; that is, the contact surface of the two is also an arc surface 7. During the pressing process of the upper die 3 in forging, the pressure can be distributed more evenly on the side of the forming side plate 5 and the lower die base 2, thereby improving the overall life of the die.

[0026] Furthermore, it also includes a reinforcing hoop 8, which is fitted onto the outer side of the upper end of the lower mold base 2; this can effectively increase the strength of the upper end of the lower mold base 2.

[0027] Furthermore, it also includes two outer positioning plates 9 (originally described as outer positioning sleeves), which clamp and fix the lower mold base 2. Specifically, the outer positioning plates 19 are fixed by welding; they can be welded to the corresponding pad 18 of the lower mold base 2. To ensure the accuracy of the welding position, the outer positioning plates 19 and the pad 18 can be positioned with pins before welding.

[0028] Furthermore, a guide sleeve 10 is fixedly connected to the outer positioning plate 9, and a guide post 11, which is slidably connected to the guide sleeve 10, is fixedly connected to the upper mold base 1. The guide sleeve 10 and the outer positioning plate 9 are fixed by welding. When the guide sleeve 10 is damaged, the damaged guide sleeve 10 can be cut off and a new guide sleeve 10 can be welded on. The guide post 10 and the upper mold base can be fixed by bolts.

[0029] Furthermore, the reinforcing hoop 8 is provided with a notch 12 that mates with the guide sleeve 10, allowing the guide sleeve 10 to be inserted into the notch 12. The notch 12 serves two purposes: firstly, to allow room for the guide sleeve 10; and secondly, to cooperate with the guide sleeve 10 to restrict the rotation of the reinforcing hoop 8.

[0030] Furthermore, the molding side plate 5 has four pieces, and the contact surface between the four molding side plates 5 is an inclined surface. The inclined surface can also reduce the pressure on the molding side plate 5 during the molding process.

[0031] Furthermore, a positioning pin 13 is provided between one of the molding side plates 5 and the lower mold base 2; corresponding pin holes are provided on the molding side plate 5 and the lower mold base 2. During installation, after inserting the molding side plate 5 into the connecting hole 4 of the lower mold base 2, the positioning pin 13 is then inserted between the molding side plate 5 and the lower mold base 2, thereby restricting the movement of the molding side plate 5 and the other molding side plates 5.

[0032] Furthermore, the locating pin 13 is preferably waist-shaped.

[0033] Furthermore, for ease of installation, positioning marks 14 are provided on the upper surfaces of both the lower mold base 2 and the forming side plate 5. Specifically, the positioning marks 14 on the lower mold base 2 are marked with the letters East, South, West, and North, while the positioning marks 14 on the forming side plate 5 are marked with the letters D, N, X, and B.

[0034] Furthermore, the lower mold base 2 is preferably cylindrical in shape.

[0035] The above description only describes the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments.

Claims

1. A closed-type column-and-socket forging die, characterized in that: It includes an upper mold base (1) and a lower mold base (2). A forging upper mold (3) is fixedly connected to the upper mold base (1). A connecting hole (4) is provided on the lower mold base (2). At least two forming side plates (5) are provided in the connecting hole (4). A bottom plate (40) is provided at the bottom of the connecting hole (4). A forming cavity (6) is formed between the forming side plate (5) and the bottom plate (40). The connecting hole (4) is a circular hole. The side of the forming side plate (5) fits against the side of the connecting hole (4). The side of the forming side plate (5) is a corresponding arc surface (7).

2. The closed-type forging die with a column socket according to claim 1, characterized in that: It also includes a reinforcing hoop (8), which is fitted onto the upper end of the lower mold base (2).

3. The closed-type forging die with a column socket according to claim 1, characterized in that: It also includes two outer positioning plates (9), which clamp and fix the lower mold base (2) by means of the two outer positioning plates (9).

4. The closed-type forging die according to claim 3, characterized in that: A guide sleeve (10) is fixedly connected to the outer positioning plate (9), and a guide post (11) that is slidably connected to the guide sleeve (10) is fixedly connected to the upper mold base (1).

5. A closed-type forging die with a column socket according to claim 2, characterized in that: The reinforcing hoop (8) is provided with a notch (12) that mates with the guide sleeve (10), and the guide sleeve (10) can be inserted into the notch (12).

6. The closed-type forging die according to claim 1, characterized in that: The molded side plate (5) is provided in four pieces, and the contact surface between the four molded side plates (5) is an inclined surface.

7. The closed-type forging die according to claim 1, characterized in that: One of the molded side plates (5) is provided with a positioning pin (13) between it and the lower mold base (2).

8. A closed-type forging die according to claim 7, characterized in that: The locating pin (13) is waist-shaped.

9. A closed-type forging die with a column socket according to claim 1, characterized in that: Positioning marks (14) are provided on the upper surfaces of the lower mold base (2) and the forming side plate (5).

10. A closed-type forging die with a column socket according to claim 1, characterized in that: The lower mold base (2) is cylindrical in shape.

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