Stress embedded type flange plate forging die

By introducing buffering and cooling components into the flange forging die, the wear problem caused by impact and heat during the forging process is solved, thereby improving the stability and durability of the die.

CN223981135UActive Publication Date: 2026-03-10ZIGONG DEQING FORGING IND MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing flange forging dies lack a buffer structure during the forging process, causing impact forces and pressures to act directly on the die, reducing the die's service life.

Method used

A stress-embedded flange forging die is designed, employing a buffer assembly and a cooling assembly. The buffer assembly includes a main buffer tank, a secondary buffer tank, a spring, and a buffer solution, while the cooling assembly includes a water tank and a coolant. The buffer assembly absorbs impact forces and pressures, while the cooling assembly absorbs heat, thus extending the die's lifespan.

Benefits of technology

It effectively absorbs the impact and heat during the forging process, reduces mold vibration and wear, extends mold service life, and improves mold stability and durability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223981135U_ABST
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Abstract

The utility model discloses a stress embedded flange plate forging die, which is applied to the technical field of flange plate forging, and is provided with a buffer component, so that the impact force and pressure of a pipe blank in a die body are conveniently absorbed, the direct impact on the die body is reduced, and the vibration and impact force of the die body are reduced. And cooling liquid is injected into the water tank through the liquid injection pipe, during use, heat of the mold body can be absorbed through the cooling liquid in the water tank, and heat dissipation and cooling of the mold body are facilitated.
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Description

Technical Field

[0001] This utility model belongs to the field of flange forging technology, and specifically relates to a stress-embedded flange forging die. Background Technology

[0002] Currently, the main manufacturing processes for flanges are forging and casting. Compared to cast flanges, forged flanges have lower carbon content, are less prone to rust, have better streamlined shape, and a denser structure, so their mechanical properties are superior to those of cast flanges. The raw material for forged flanges is generally a tube blank. After the tube blank is heated, it is placed in a mold, and the tube blank is shaped by the strong impact force of the upper mold.

[0003] Currently, Chinese utility model patent CN221559706U discloses a flange forging die, which relates to the field of flange forging die technology. Although the device can set the bottom die, middle die and upper die in a modular way to achieve more size combinations, it is not convenient to buffer the forging die. As a result, the impact force and pressure of the stamping mechanism are directly applied to the die during the forging process, which reduces the service life of the die. Utility Model Content

[0004] The purpose of this utility model is to provide a stress-embedded flange forging die, which has the advantage of facilitating the buffering of the die and extending its service life.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a stress-embedded flange forging mold, comprising a mold body, a base provided on the outer side of the mold body, a casting groove provided on the inner wall of the mold body, a buffer assembly provided at the bottom of the mold body, the buffer assembly being a plurality of groups arranged in a ring, and a cooling assembly provided on the other side of the mold body; the buffer assembly includes a main buffer groove opened on the inner wall of the base, a guide rod slidably connected to the inner wall of the main buffer groove, the top of the guide rod being fixedly connected to one side of the bottom of the mold body, a first spring provided on the outer side of the guide rod, one end of the first spring being fixedly connected to the other side of the bottom of the mold body, and the other end of the first spring being fixedly connected to the inner wall of the base.

[0006] The above technical solution facilitates buffering of the mold, avoids direct action of the stamping mechanism on the mold, and extends the service life of the mold.

[0007] The present invention is further configured such that: the main buffer groove includes a through groove, a secondary buffer groove, a second spring and a top plate, the inner wall of the main buffer groove is provided with a through groove, and the inner wall of the through groove is connected to the secondary buffer groove.

[0008] The above technical solution improves the buffering effect on the mold.

[0009] The present invention is further configured such that a second spring is fixedly connected to the inner wall of the secondary buffer groove, and a top plate is fixedly connected to one end of the second spring.

[0010] Using the above technical solution, when the pressure disappears, some of the buffer solution can automatically flow back into the main buffer tank.

[0011] The present invention is further configured such that the inner cavities of both the main buffer tank and the secondary buffer tank are provided with buffer solution.

[0012] The above technical solution can be used in conjunction with the first and second springs to buffer the mold.

[0013] The present invention is further configured such that the base includes a through hole, and the inner wall of the base is provided with a plurality of through holes.

[0014] The above technical solution facilitates heat dissipation from the buffer components.

[0015] The present invention is further configured such that the casting groove includes a stepped layer, an inner groove and an open column, the inner wall of the casting groove is provided with a stepped layer, the inner wall of the stepped layer is provided with an inner groove, the inner wall of the inner groove is fixedly connected with an open column, and the top of the open column is flush with the top of the mold body.

[0016] The above technical solution facilitates the stamping and forming of flanges.

[0017] The present invention is further configured such that the guide rod includes a limiting block, the limiting block is fixedly connected to one side of the guide rod, the inner wall of the base is provided with a limiting groove, and the limiting block is slidably connected to the limiting groove.

[0018] The above technical solution improves the stability of the guide rod during movement.

[0019] The present invention is further configured such that the cooling assembly includes a water tank fixed to the circumference of the mold body, the top of the water tank is connected to an injection pipe, the bottom of the water tank is connected to a drain pipe, the interior of the water tank is provided with coolant, and the exterior of the drain pipe is provided with a valve.

[0020] The above technical solution facilitates the absorption of heat from the mold.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. By setting up a buffer component, the impact and pressure of the tube blank in the mold body can be easily absorbed, reducing the direct impact on the mold body, reducing the vibration and impact force of the mold body, thereby extending its service life.

[0023] 2: By setting up cooling components, the heat of the mold body can be absorbed, which facilitates heat dissipation and cooling. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal groove and the perforated column of this utility model;

[0026] Figure 3 This is a utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0027] Reference numerals: 1. Mold body; 2. Base; 201. Through hole; 3. Casting groove; 301. Stepped layer; 302. Inner groove; 303. Opening column; 4. Main buffer groove; 401. Through groove; 402. Secondary buffer groove; 403. Second spring; 404. Top plate; 5. Guide rod; 501. Limiting block; 6. First spring; 7. Water tank; 8. Injection pipe; 9. Drainage pipe. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1:

[0030] refer to Figures 1-3 A stress-embedded flange forging die includes a die body 1, a base 2 on the outer side of the die body 1, a casting groove 3 on the inner wall of the die body 1, and a buffer assembly at the bottom of the die body 1. The buffer assembly consists of several groups arranged in a ring. The buffer assembly includes a main buffer groove 4 on the inner wall of the base 2, a guide rod 5 slidably connected to the inner wall of the main buffer groove 4, the top of the guide rod 5 being fixedly connected to one side of the bottom of the die body 1, and a first spring 6 on the outer side of the guide rod 5. One end of the first spring 6 is fixedly connected to the other side of the bottom of the die body 1, and the other end of the first spring 6 is fixedly connected to the inner wall of the base 2.

[0031] The main buffer groove 4 includes a through groove 401, a secondary buffer groove 402, a second spring 403 and a top plate 404. The inner wall of the main buffer groove 4 is provided with a through groove 401, and the inner wall of the through groove 401 is connected to the secondary buffer groove 402.

[0032] A second spring 403 is fixedly connected to the inner wall of the secondary buffer groove 402, and one end of the second spring 403 is fixedly connected to the top plate 404.

[0033] Both the main buffer tank 4 and the secondary buffer tank 402 are equipped with buffer solutions.

[0034] The base 2 includes a through hole 201. Several through holes 201 are provided on the inner wall of the base 2 to facilitate heat dissipation of the buffer assembly.

[0035] The casting trough 3 includes a stepped layer 301, an inner groove 302, and an opening column 303. The inner wall of the casting trough 3 has a stepped layer 301, and the inner wall of the stepped layer 301 has an inner groove 302. The inner wall of the inner groove 302 is fixedly connected to the opening column 303. The top of the opening column 303 is flush with the top of the mold body 1. The tube blank is placed into the casting trough 3, and the stepped layer 301, inner groove 302, and opening column 303 facilitate the stamping and forming of the flange.

[0036] The guide rod 5 includes a limiting block 501. The limiting block 501 is fixedly connected to one side of the guide rod 5. A limiting groove is opened on the inner wall of the base 2. The limiting block 501 is slidably connected to the limiting groove. The limiting block 501 can keep the guide rod 5 moving stably.

[0037] Brief description of the usage process: When stamping the flange, the stamping force of the external stamping mechanism acts on the mold body 1 through the tube blank, which will drive the mold body 1 to move downward, thereby causing the guide rod 5 to move into the main buffer groove 4 and squeeze the buffer solution to enter the secondary buffer groove 402 through the through groove 401. Under the action of the buffer solution pressure, the top plate 404 squeezes the second spring 403. Through the action of the first spring 6, the second spring 403 and the buffer solution, the mold body 1 is buffered, which helps to absorb the impact force and pressure of the tube blank in the mold body 1, reduces the direct impact force of the stamping mechanism on the mold body 1, reduces the vibration and impact force of the mold body 1, and thus extends its service life.

[0038] Example 2:

[0039] refer to Figure 1 and Figure 2 A stress-embedded flange forging die includes a die body 1, characterized in that a cooling component is provided on one side of the die body 1.

[0040] The cooling assembly includes a water tank 7 fixed to the circumference of the mold body 1. The top of the water tank 7 is connected to an injection pipe 8, and the bottom of the water tank 7 is connected to a drain pipe 9. Coolant is installed inside the water tank 7, and a valve is installed on the outside of the drain pipe 9.

[0041] Brief description of the usage process: Coolant is injected into the water tank 7 through the injection pipe 8. During use, the coolant in the water tank 7 can absorb the heat of the mold body 1, which is convenient for heat dissipation and cooling. The coolant can be discharged from the drain pipe 9 by opening the valve, which is convenient for replacing the coolant.

[0042] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A stress-inlay flange forging die comprising a die body (1), characterized in that: The outer side of the mold body (1) is provided with a base (2), the inner wall of the mold body (1) is provided with a pouring groove (3), the bottom of the mold body (1) is provided with a buffer assembly, the buffer assembly is a plurality of groups, a plurality of groups of the buffer assembly are arranged in an annular distribution, and the other side of the mold body (1) is provided with a cooling assembly; The buffer assembly comprises a main buffer groove (4) formed in the inner wall of the base (2), a guide rod (5) is slidably connected to the inner wall of the main buffer groove (4), the top of the guide rod (5) is fixedly connected to one side of the bottom of the mold body (1), a first spring (6) is arranged on the outer side of the guide rod (5), one end of the first spring (6) is fixedly connected to the other side of the bottom of the mold body (1), and the other end of the first spring (6) is fixedly connected to the inner wall of the base (2).

2. A stress-mosaic flange forging die according to claim 1, characterized in that: The main buffer groove (4) comprises a through groove (401), a secondary buffer groove (402), a second spring (403) and a top plate (404), the inner wall of the main buffer groove (4) is provided with a through groove (401), and the inner wall of the through groove (401) is communicated with a secondary buffer groove (402).

3. A stress-mosaic flange disk forging die according to claim 2, characterized in that: The inner wall of the secondary buffer groove (402) is fixedly connected with a second spring (403), and one end of the second spring (403) is fixedly connected with a top plate (404).

4. A stress-mosaic flange forging die according to claim 2, characterized in that: The inner cavities of the main buffer groove (4) and the secondary buffer groove (402) are provided with buffer solutions.

5. A stress-mosaic flange forging die according to claim 1, characterized in that: The base (2) comprises a through hole (201), and the inner wall of the base (2) is provided with a plurality of through holes (201).

6. A stress-mosaic flange disk forging die according to claim 1, characterized in that: The pouring groove (3) comprises a stepped layer (301), an inner groove (302) and an opening column (303), the inner wall of the pouring groove (3) is provided with a stepped layer (301), the inner wall of the stepped layer (301) is provided with an inner groove (302), the inner wall of the inner groove (302) is fixedly connected with an opening column (303), and the top of the opening column (303) is flush with the top of the mold body (1).

7. A stress-mosaic flange disk forging die according to claim 1, characterized in that: The guide rod (5) comprises a limiting block (501), one side of the guide rod (5) is fixedly connected with a limiting block (501), the inner wall of the base (2) is provided with a limiting groove, and the limiting block (501) is slidably connected with the limiting groove.

8. A stress-mosaic flange disk forging die according to claim 1, characterized in that: The cooling assembly comprises a water tank (7) fixed to the circumference of the mold body (1), the top of the water tank (7) is communicated with a liquid injection pipe (8), the bottom of the water tank (7) is communicated with a liquid discharge pipe (9), the inside of the water tank (7) is provided with a cooling liquid, and the outer side of the liquid discharge pipe (9) is provided with a valve.

Citation Information

Patent Citations

  • Flange plate forging die

    CN221559706U