CN214023293U

CN214023293U - Mould is used in processing of long arc die forging

Info

Publication number: CN214023293U
Application number: CN202022601000.0U
Authority: CN
Inventors: 王姝俨; 吴道祥; 刘强; 白倩倩; 曾庆华; 代芳芳; 许开春
Original assignee: Southwest Aluminum Group Co Ltd
Current assignee: Southwest Aluminum Group Co Ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-08-24
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses a mould is used in processing of long arc die forging, comprises a lower die, the upper portion of lower mould is equipped with the die cavity that conforms with the forging shape of long arc die forging, be equipped with two at least location portions that can supply blank card income and fix a position in the die cavity. The utility model provides a mould, through the adduction of location portion makes the blank can be put into completely in the die cavity to make its structural feature of extrusion bar accessible itself fix a position, realize accurate, the quick location of this type of long arc forging die forging forming process blank, guarantee the stability of forging.

Description

Mould is used in processing of long arc die forging

Technical Field

The utility model relates to a mould forging processing field especially relates to a mould is used in processing of long arc mould forging.

Background

In the prior art, the positioning of a regular die forging forming blank generally depends on the structural characteristics of a forging piece, such as a right angle, a groove and the like, and in addition, the positioning is carried out by visual inspection of field workers or by adopting a marking mode and the like.

However, for the arc-shaped irregular forging, the cavity of the die is of an arc-shaped structure, as shown in fig. 1, when a blank is placed, because a reference datum cannot be found, scribed lines are easy to wear, and because of the special shape of the long arc-shaped forging, the axial and radial dimensions of a round extruded bar are basically determined, the blank cannot be directly placed into the lower cavity, as shown in fig. 2 and 3, the blank is unstable to place, and the forging deviates in the forming process; in addition, in the forming process, two end faces of the round extruded bar are seriously scraped, and the axial positioning of the blank is carried out by visual inspection of an operator, but the axial positioning error of the blank is larger due to the influence of a plurality of factors such as the visual inspection angle change of the operator, the high-temperature radiation of the material, the operation safety and the like.

Therefore, how to improve the machining precision of the long arc die forging 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 mould is used in processing of long arc mould forging, this mould is used in processing of long arc mould forging can effectual improvement to the positioning accuracy of long arc mould forging, and then improve the machining precision, save raw and other materials.

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

the utility model provides a mould is used in processing of long arc die forging, includes the lower mould, the upper portion of lower mould is equipped with the die cavity that accords with the forging shape of long arc die forging, be equipped with two at least location portions that can supply blank card to go into and fix a position in the die cavity.

Preferably, the cavity comprises a concave side and a convex side, and the positioning part is arranged on the convex side of the cavity.

Preferably, the blank is a cylindrical blank, and the distance between the surface of the positioning part away from the concave side and the tangent of the concave side should be no less than the diameter of the blank.

Preferably, the distance between the two positioning parts for limiting the blank is the same as the length of the blank.

Preferably, the positioning portion is a positioning portion formed by cutting.

Preferably, the positioning part comprises an end part limiting surface and a peripheral part limiting surface, after the blank is placed into the cavity, the end surface of the blank is close to the end part limiting surface, and the peripheral parts of the two ends of the blank are close to the peripheral part limiting surface.

The utility model provides a mould is used in processing of long arc die forging, comprises a lower die, the upper portion of lower mould is equipped with the die cavity that conforms with the forging shape of long arc die forging, be equipped with two at least location portions that can supply blank card income and fix a position in the die cavity. The utility model provides a mould, through the adduction of location portion makes the blank can be put into completely in the die cavity to make its structural feature of extrusion bar accessible itself fix a position, realize accurate, the quick location of this type of long arc forging die forging forming process blank, guarantee the stability of forging.

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 a schematic view of a lower die structure of a die for processing a long arc-shaped die forging in the prior art;

FIG. 2 is a schematic view of the position relationship between the lower die and the blank of the die for processing the long arc-shaped die forging in the prior art;

FIG. 3 is a schematic cross-sectional view of the lower die of the die for processing a long arc-shaped die forging shown in FIG. 2 after a blank is placed thereon;

fig. 4 is a schematic view of a lower die structure of a specific embodiment of the die for processing the long arc-shaped die forging provided by the present invention;

FIG. 5 is a schematic view showing a positional relationship between a lower die and a blank of the die for processing a long arc-shaped die forging shown in FIG. 4;

FIG. 6 is a schematic sectional view taken along line A-A of the lower die of the die for processing long arc-shaped die forgings shown in FIG. 5 after a blank is placed on the lower die;

wherein: a lower die-100; a positioning part-200; blank-300.

Detailed Description

The core of the utility model is to provide a mould is used in processing of long arc die forging, this mould is used in processing of long arc die forging can effectual improvement to the positioning accuracy of long arc die forging, and then improve the machining precision, save raw and other materials.

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. 4 to 6, fig. 4 is a schematic view of a lower die structure of a specific embodiment of the long arc-shaped die forging processing die provided in the present invention; FIG. 5 is a schematic view showing a positional relationship between a lower die and a blank of the die for processing a long arc-shaped die forging shown in FIG. 4; fig. 6 is a schematic sectional view a-a of the lower die of the die for processing a long arc-shaped die forging shown in fig. 5 after a blank is placed thereon.

In this embodiment, the die for processing a long arc-shaped die forging includes a lower die 100, a cavity conforming to the shape of the long arc-shaped die forging is provided at the upper part of the lower die 100, the cavity is used for forming the forging, and the blank 300 is flowed and filled in the cavity by the extrusion of the upper die and the lower die 100, so as to obtain the forging. Further, at least two positioning parts 200 are arranged in the cavity, and the blank 300 can be clamped and positioned by the positioning parts 200. Specifically, the positioning portion 200 extends downward from the upper surface of the lower mold 100, and the additional position of the positioning portion 200 should satisfy that the blank 300 can be placed in the cavity, so that the manner that the blank 300 is suspended above the cavity in the prior art is changed.

The utility model provides a mould through the addding of location portion 200 for the die cavity can be put into completely to blank 300, and make its structural feature of extrusion bar accessible itself fix a position, realize accurate, the quick location of this type of long arc forging die forging forming process blank 300, guarantee the stability of forging.

On the basis of the above embodiments, the cavity includes a concave side and a convex side, as shown in fig. 1, the arc structure, and the positioning portion 200 is disposed on the convex side of the cavity. The above arrangement is to reduce the size of the positioning part 200 as much as possible, and further to reduce the amount of excess material processing after pressing the blank 300, thereby reducing the processing cost and material loss.

Further, the blank 300 is a cylindrical blank, and the distance between the surface of the positioning portion 200 away from the concave side and the tangent of the concave side should be not less than the diameter of the blank 300, so that a sufficient space is provided for the blank 300 to be placed between the peripheral limiting surface of the positioning portion 200 and the concave side, the tangent of the concave side is a tangent parallel to the blank 300, and the distance between the surface of the positioning portion 200 away from the concave side and the tangent of the concave side is a minimum distance, thereby avoiding the situation that the blank 300 cannot be placed.

On the basis of the above embodiments, the distance between the two positioning portions 200 for positioning the blank 300 is the same as the length of the blank 300, and preferably, the number of the positioning portions 200 is two, and the distance between the end positioning surfaces of the two positioning portions 200 is the same as the length of the blank 300, so that the blank 300 can be placed in the blank holder, thereby facilitating the subsequent processing.

In addition to the above embodiments, the positioning portion 200 is a positioning portion formed by cutting. Specifically, local transformation can be directly carried out on the basis of the original die, so that accurate and quick positioning of the blank 300 in the die forging forming process of the long arc-shaped forge piece can be realized, and the stability of the forge piece is ensured.

In addition to the above embodiments, the positioning portion 200 includes an end limiting surface and a peripheral limiting surface, after the blank 300 is placed in the cavity, the end surface of the blank 300 is close to the end limiting surface, the peripheral portions of the two ends of the blank 300 are close to the peripheral limiting surface, and the radial and axial directions of the blank 300 can be effectively limited by the end limiting surface and the peripheral limiting surface.

In a specific embodiment, taking a certain aviation long arc-shaped forging as an example, the forging material is 2A14 aluminum alloy, and the manufacturing process of the die is as follows: firstly, a die cavity of a lower die 100 is designed in a die cavity of the lower die 100 according to the shapes and the sizes of a forged piece and a round extruded bar, the length of the round bar is 800mm, the diameter of the round bar is 150mm, and the designed die cavity is provided with two positioning parts 200 so that a round blank 300 can be completely placed in the die cavity and can be completely contacted with a platform of the die cavity of the lower die 100. Heating the blank 300 to 430 +/-10 ℃, then placing the blank 300 in a cavity of a lower die 100, carrying out die forging forming, taking out the forge piece, and carrying out a trimming process to obtain the required long arc forge piece.

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.

It is right above the utility model provides a mould has been introduced in detail for processing of long arc die forging. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas 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 protection scope of the appended claims.

Claims

1. The utility model provides a mould is used in processing of long arc die forging, includes lower mould (100), its characterized in that, the upper portion of lower mould (100) is equipped with the die cavity that accords with the forging shape of long arc die forging, be equipped with two at least location portions (200) that can supply blank (300) card to go into and fix a position in the die cavity.

2. The die for processing the long arc-shaped die forging according to claim 1, wherein the cavity comprises an inner concave side and an outer convex side, and the positioning portion (200) is arranged on the outer convex side of the cavity.

3. The die for processing a long arc-shaped die forging according to claim 2, wherein the blank (300) is a cylindrical blank, and a distance between a surface of the positioning portion (200) away from the concave side and a tangent of the concave side should be not less than a diameter of the blank (300).

4. The die for processing a long arc-shaped die forging according to claim 1, wherein a distance between the two positioning portions (200) for limiting the position of the blank (300) is the same as the length of the blank (300).

5. The die for processing a long arc-shaped die forging according to claim 1, wherein the positioning portion (200) is a positioning portion formed by cutting.

6. The die for processing the long arc-shaped die forging according to any one of claims 1 to 5, wherein the positioning portion (200) comprises an end limiting surface and a peripheral limiting surface, after the blank (300) is placed in the cavity, the end surface of the blank (300) is close to the end limiting surface, and the peripheral portions of the two ends of the blank (300) are close to the peripheral limiting surface.