CN218340926U

CN218340926U - Forging die

Info

Publication number: CN218340926U
Application number: CN202222870959.3U
Authority: CN
Inventors: 刘强; 吴道祥; 白倩倩; 王姝俨; 许开春; 李丹丹
Original assignee: Southwest Aluminum Group Co Ltd
Current assignee: Southwest Aluminum Group Co Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-01-20
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a forging die, which comprises a die body and a mandril, wherein the mandril comprises a forming part and a rod body, a plurality of bosses are arranged on the rod body near the periphery of one side of the forming part, the size of each boss is different, or the circumferential angles of the rod body corresponding to adjacent bosses are different; positioning grooves which correspond to the bosses one to one and are consistent in size are arranged in the cavity of the die body. The utility model provides a forging mould can realize the circumference location of ejector pin prevents the ejector pin takes place to rotate around the axis, simultaneously, through the boss set up the mode that the position is uneven or the size is different, effectively prevents the ejector pin turns to the wrong assembly that leads to, improves and uses the reliability.

Description

Forging die

Technical Field

The utility model relates to a forging apparatus field especially relates to a forging die.

Background

The ejector pin profile of forging mould is mostly circular, can follow the axis rotation, when the forging has circumference asymmetric structure, then need prevent that the ejector pin from taking place to rotate.

In the prior art, when the ejector rod is circumferentially positioned, key positioning is generally adopted. However, during the forging production process, the ejector rod may be separated from the die along with the forging due to die sticking and the like; when the key is used for positioning, the working face of the key is vertical, so that the ejector rod is not convenient to assemble and enter the die, the positioning needs to be adjusted, and the efficiency is low. Especially, in the hot forging process, the alignment of the mandril is not convenient to be accurately adjusted.

Therefore, how to improve the reliability of the position of the mandril in the forging die is a technical problem which needs to be solved by the technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a forge mould, this forge mould can effectual improvement ejector pin's position precision, prevent to rotate, convenient assembly improves and forges the reliability.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a forging die comprises a die body and an ejector rod, wherein the ejector rod comprises a forming part and a rod body, a plurality of bosses are arranged on the periphery of one side, close to the forming part, of the rod body, the size of each boss is different, or the circumferential angles of the rod bodies corresponding to adjacent bosses are different; positioning grooves which correspond to the bosses one by one and are consistent in size are arranged in the cavity of the die body.

Preferably, the surface of the boss far away from the rod body is an inclined surface, and the inclined surface inclines from one side close to the forming part to the other side towards the direction close to the rod body.

Preferably, the width of the boss gradually decreases from one side close to the forming part to the other side.

Preferably, the left side and the right side of the surface of the boss far away from the rod body are both provided with arc chamfers.

Preferably, the joint of the boss and the rod body is provided with an arc chamfer.

Preferably, the ejector rod is an integrally formed ejector rod.

Preferably, the number of the bosses is at least three, and the bosses are adjacent to each other, and the circumferential included angles of the bosses relative to the rod body are different.

Preferably, the number of the bosses is at least two, the bosses are uniformly distributed along the circumferential direction of the rod body, and the size of each boss is different.

The utility model provides a forging die, including mould body and ejector pin, the ejector pin includes shaping portion and the body of rod, a side week portion that is close to the shaping portion on the body of rod is equipped with a plurality of bosss, the size of each boss is different, perhaps, the circumference angle of the body of rod that corresponds between the adjacent boss is different; positioning grooves which correspond to the bosses one to one and are consistent in size are arranged in the cavity of the die body. The utility model provides a forging mould can realize the circumference location of ejector pin prevents the ejector pin takes place rotatoryly around the axis, simultaneously, through the boss set up the mode that the position is uneven or the size is different, effectively prevents the ejector pin turns to the wrong assembly that leads to, improves and uses the reliability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded schematic view of a forging die according to an embodiment of the present invention;

FIG. 2 is a schematic view of an assembled structure of the forging die shown in FIG. 1;

FIG. 3 is a schematic perspective view of a mandrel in the forging die shown in FIG. 1;

FIG. 4 is a top view of the carrier rod shown in FIG. 3;

FIG. 5 isbase:Sub>A sectional view taken along line A-A of the stem lifter shown in FIG. 4;

FIG. 6 is a perspective view of a die body of the forging die shown in FIG. 1;

FIG. 7 is a top view of the die body shown in FIG. 6;

FIG. 8 is a sectional view B-B of the die body shown in FIG. 7;

wherein: a mandril-1; a boss-11; a first boss-12; a second boss-13; a third boss-14; a mould body-2; and (5) positioning a groove-21.

Detailed Description

The core of the utility model is to provide a forging die, this forging die can effectual improvement ejector pin's position precision, prevent to rotate, and convenient assembling improves and forges the reliability.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 8, fig. 1 is an exploded schematic view of a forging die according to an embodiment of the present invention; FIG. 2 is a schematic view of an assembled structure of the forging die shown in FIG. 1;

FIG. 3 is a schematic perspective view of a mandrel in the forging die shown in FIG. 1; FIG. 4 is a top view of the carrier rod shown in FIG. 3; FIG. 5 isbase:Sub>A sectional view taken along line A-A of the stem lifter shown in FIG. 4; FIG. 6 is a perspective view of a die body of the forging die shown in FIG. 1; FIG. 7 is a top view of the die body shown in FIG. 6; fig. 8 is a B-B sectional view of the die body shown in fig. 7.

In this embodiment, the forging die includes a die body 2 and ejector pins 1.

The ejector rod 1 comprises a forming part and a rod body, one side of the forming part, which is far away from the rod body, is in contact with the forged piece, a plurality of bosses 11 are arranged on the periphery of one side, which is close to the forming part, of the rod body, the bosses 11 are different in size, or the circumferential angles of the rod bodies corresponding to the adjacent bosses 11 are different; positioning grooves 21 which correspond to the bosses 11 one by one and are consistent in size are arranged in the cavity of the die body 2.

The utility model provides a forging mould can realize the circumference location of ejector pin 1, prevents that ejector pin 1 from taking place rotatoryly around the axis, simultaneously, through the mode that sets up position uneven branch or size difference of boss 11, effectively prevents that ejector pin 1 from turning to the wrong assembly that leads to, improves and uses the reliability.

On the basis of the above embodiments, the surface of the boss 11 away from the rod body is an inclined surface, the inclined surface inclines from one side close to the forming part to the other side toward the direction close to the rod body, and by setting the surface of the boss 11 as the inclined surface, that is, the boss 11 has a certain inclination, after the ejector rod 1 is removed from the mold, the structure of the boss 11 facilitates the assembly of the ejector rod 1 into the mold.

Preferably, the width of boss 11 reduces from a side that is close to the shaping portion to the opposite side gradually, that is to say, boss 11 is the triangular pyramid, and each face of boss 11 all has certain inclination, the maximize make things convenient for the cooperation of boss 11 and constant head tank 21.

On the basis of each embodiment, the left side and the right side of the surface, far away from the rod body, of the boss 11 are provided with arc chamfers, so that resistance is reduced, and assembly is facilitated.

On the basis of each embodiment, the connecting part of the boss 11 and the rod body is provided with an arc chamfer, so that the resistance between the boss 11 and the positioning groove 21 is further reduced, and the assembly is convenient.

In addition to the above embodiments, the carrier rod 1 is an integrally molded carrier rod and has high strength. Specifically, the alloy can be formed by casting and then machining.

On the basis of the above embodiments, the number of the bosses 11 is at least three, and the circumferential included angles between the adjacent bosses 11 relative to the rod body are different. Preferably, in order to reduce the cost and ensure the stable stress of the bosses 11, the number of the bosses 11 is preferably three, which does not cause the eccentric of the carrier rod 1. Specifically, as shown in fig. 4, the three bosses 11 are respectively a first boss 12, a second boss 13 and a third boss 14, wherein an included angle between the first boss 12 and the second boss 13 is 120 to 150 °, an included angle between the first boss 12 and the third boss 14 is 120 to 150 °, and an included angle between the second boss 13 and the third boss 14 is 80 to 100 °.

On the basis of each embodiment, the number of the bosses 11 is at least two, the bosses 11 are uniformly distributed along the circumferential direction of the rod body, and the sizes of the bosses 11 are different. In the mode, the bosses 11 are uniformly distributed, and the only matching mode of the ejector rod 1 and the die body 2 is realized by changing the size of the bosses 11, so that the mode is stable in stress.

The forging die can realize circumferential positioning of the ejector rod 1, is convenient for the ejector rod 1 to be assembled into the die body 2, and prevents the ejector rod 1 from being reversely assembled; only the structures of the boss 11 and the positioning groove 21 are added, so that the integrated structure is manufactured integrally, the cost is low, and the positioning function is effectively realized.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The forging die provided by the utility model is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.

Claims

1. A forging die comprises a die body (2) and a mandril (1), wherein the mandril (1) comprises a forming part and a rod body, and is characterized in that a plurality of bosses (11) are arranged on the periphery of one side, close to the forming part, of the rod body, the bosses (11) are different in size, or the circumferential angles of the rod bodies corresponding to the adjacent bosses (11) are different; positioning grooves (21) which correspond to the bosses (11) one by one and are in accordance with the size are formed in the cavity of the die body (2).

2. The forging die as recited in claim 1, wherein a surface of the boss (11) away from the rod body is a slope inclined from one side close to the forming portion to the other side toward a direction close to the rod body.

3. The forging die as recited in claim 2, wherein the width of the boss (11) is gradually reduced from one side close to the forming portion to the other side.

4. The forging die as recited in claim 3, wherein the left and right sides of the surface of the boss (11) far away from the rod body are provided with circular arc chamfers.

5. The forging die as recited in claim 4, wherein the joint of the boss (11) and the rod body is provided with a circular arc chamfer.

6. Forging die according to claim 1, wherein the carrier rod (1) is an integrally formed carrier rod.

7. The forging die of any one of claims 1 to 6, wherein the number of the bosses (11) is at least three, and the circumferential included angles between adjacent bosses (11) relative to the rod body are different.

8. The forging die of any one of claims 1 to 6, wherein the number of the bosses (11) is at least two, the bosses (11) are uniformly distributed along the circumferential direction of the rod body, and the bosses (11) are different in size.