CN218638483U

CN218638483U - Die for forging and forming inclined forged pipe

Info

Publication number: CN218638483U
Application number: CN202121773568.9U
Authority: CN
Inventors: 陆秦旭; 蒋鑫; 陆振宇; 徐良
Original assignee: Wuxi Paike New Material Technology Co ltd
Current assignee: Wuxi Paike New Material Technology Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2023-03-17
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a mould for forging pipe to one side takes shape, its technical scheme main points are including the mould body, the top surface of mould body is the slope setting, it has the shaping hole to open on the mould body, the side of mould body sets up the backup plate, the utility model has the advantages of be applicable to special-shaped forging pipe to one side and forges and take shape, the waste of the material that significantly reduces, reduction in production cost.

Description

Die for forging and forming inclined forged pipe

Technical Field

The utility model relates to a dysmorphism forging takes shape the appurtenance field, especially relates to a mould that is used for forging to one side pipe forging to take shape.

Background

The structure of a conventional inclined forged pipe for a nickel-based corrosion-resistant alloy pressure vessel is shown in fig. 1. The cylindrical rough blank shown in fig. 2 is prepared by adopting a traditional cylindrical die, and then, redundant external materials are cut off, so that the blank of the forging blank of the inclined forging pipe is obtained, but the material utilization rate is only 17%, great waste is generated, and the production cost is high. It is desirable to redesign a die for the special forging of such products.

Disclosure of Invention

To the shortcoming of above-mentioned prior art, the utility model aims at providing a mould for forging to one side pipe forging takes shape, its advantage lies in being applicable to special-shaped pipe forging to one side and takes shape, the waste of the material that significantly reduces, reduction in production cost.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the die for forging and forming the inclined forged pipe comprises a die body, wherein the top surface of the die body is obliquely arranged, a forming hole is formed in the die body, and a backup plate is arranged on the side surface of the die body.

Further, the orifice of the forming hole is provided with a round angle.

Further, the outer edge of the orifice of the forming hole is provided with a forming step.

Further, the backup plate and the die body are fixed through welding seams in a welding mode.

Furthermore, the welding seam is provided with two, and the two welding seams are arranged correspondingly about the center of the bottom edge of the side face of the die body.

Furthermore, the backup plate is arranged in an isosceles triangle shape, and the bevel edge of the backup plate is fixedly attached to the die body.

Furthermore, the connecting part of the forming step and the die body is provided with a fillet.

Furthermore, the top surface of the die body is in arc transition with the side surface.

To sum up, the utility model discloses following beneficial effect has:

1. the forged blank is placed into a die, the blank is pressed to a specified height from top to bottom, the bottom of the blank is formed at the moment, then the die is placed down, the blank is continuously pressed, the blank deforms at the opening of a forming hole and a forming step, and finally the head of the blank is rounded to obtain the required shape of the blank, so that excessive material removal is not needed, the material utilization rate is improved, and the material waste is greatly reduced.

2. The round angle is arranged at the orifice of the forming hole, so that the stress concentration at the orifice is prevented from generating cracks, and the service life of the die is prolonged.

3. When the die is used for forming, only workers are required to mainly perform pressing operation, the forming process is simplified, the forming efficiency of the inclined forged pipe is improved, and meanwhile the labor intensity of the workers is reduced.

Drawings

FIG. 1 is a schematic structural view of a swaged tube;

FIG. 2 is a schematic view of the structure of a cylindrical blank;

FIG. 3 is a schematic cross-sectional view of a die for forge forming of a swaged tube;

FIG. 4 is a schematic side view of a die for forge forming of a tube being swaged;

FIG. 5 is a schematic view showing the change in the shape of the billet during the forging of the angle forged pipe.

In the figure, 1, a die body; 11. welding seams; 2. a backup plate; 3. forming a hole; 31. round corners; 32. and forming a step.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following device of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. To make the objects, features and advantages of the present invention more comprehensible, please refer to the attached drawings. It should be understood that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the limitation of the implementation of the present invention, so that the present invention does not have the essential technical meaning, and any modification of the structure, change of the proportion relation or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function and the achievable purpose of the present invention.

The embodiment is as follows:

a die for forging and forming an inclined forged pipe comprises a die body 1, wherein the top surface of the die body 1 is obliquely arranged, and the inclination angle of the top surface is determined according to the shape of a workpiece to be formed.

Further, as shown in fig. 4, the top surface of the die body 1 is in arc transition with the side surface, and the die body 1 has a symmetrical left-right structure.

Further, as shown in fig. 3, a forming hole 3 is formed in the die body 1, the forming hole 3 is located on a central axis of the die body 1, and an inner diameter of the forming hole 3 is determined according to an outer diameter of the workpiece pipe.

Further, as shown in fig. 3, a rounded corner 31 is provided at the orifice of the forming hole 3. Since the orifice of the forming hole 3 is a position where the blank is in direct contact with the die and a stress concentration position, the fillet 31 is provided at this position to avoid a tip to prevent a crack from being generated by the stress concentration.

Further, as shown in fig. 3, the outer edge of the orifice of the shaping hole 3 is provided with a shaping step 32. During the blank forming process, the forming step 32 is in contact with the blank, so that the blank is deformed according to the forming step 32, and finally the required shape is obtained.

Further, as shown in fig. 3, a backup plate 2 is fixed on a side surface of the die body 1, the backup plate 2 is arranged in an isosceles triangle shape, a bevel edge of the backup plate 2 is fixedly attached to the die body 1, and a bottom edge of the backup plate 2 is parallel to a top surface of the die body 1. In the forming process, the die body 1 is laid down, the bottom edge of the backup plate 2 supports the die body 1 in a clinging manner, and the top surface of the die body 1 is horizontal.

Further, as shown in fig. 3 and 4, the backup plate 2 and the die body 1 are welded and fixed through a welding line 11, the welding line 11 is provided with two welding lines, and the two welding lines 11 are correspondingly arranged relative to the center of the bottom edge of the side surface of the die body 1, so that the stress balance of the joint of the two welding lines is ensured.

The specific implementation process comprises the following steps:

as shown in fig. 5, firstly, the good blank is put into the die body 1, then the blank is pressed to a set height from top to bottom by the forging hammer, then the die body 1 is laid down, the die body 1 is supported by the backup plate 2, the pressing is continued until the blank is pressed to a specified position, finally, the outer edge of the die body 1 is clamped by the operating machine, the big end of the blank is rounded until the big end of the blank is flush with the forming step, finally, the blank with the required shape is obtained, and finally, the blank is punched.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A mould for inclined forging pipe forging forming is characterized in that: the die comprises a die body, wherein the top surface of the die body is obliquely arranged, a forming hole is formed in the die body, and a backup plate is arranged on the side surface of the die body.

2. The die for forging and forming the inclined forged pipe as claimed in claim 1, wherein: and a round corner is arranged at the orifice of the forming hole.

3. The die for forging and forming the angle forged pipe as claimed in claim 2, wherein: the outer edge of the orifice of the forming hole is provided with a forming step.

4. The die for forging and forming the angle forged pipe as claimed in claim 1, wherein: the backup plate and the die body are welded and fixed through a welding seam.

5. The die for forging and forming the angle forged pipe according to claim 4, wherein: the welding line is provided with two, and the two welding lines are arranged correspondingly about the center of the bottom edge of the side face of the die body.

6. The die for forging and forming the angle forged pipe as claimed in claim 1, wherein: the backup plate is arranged in an isosceles triangle shape, and the bevel edge of the backup plate is fixedly attached to the die body.

7. A die for forging a slant-forged pipe according to claim 3, wherein: and the joint of the forming step and the die body is provided with a fillet.

8. The die for forging and forming the inclined forged pipe as claimed in claim 1, wherein: the top surface of the die body is in arc transition with the side surface.