CN211191825U

CN211191825U - Blank of 2014 aluminum alloy aviation precision hub die forging

Info

Publication number: CN211191825U
Application number: CN201922086961.XU
Authority: CN
Inventors: 陈丽芳; 吴道祥; 王正安; 林海涛; 曾庆华; 张见军
Original assignee: Southwest Aluminum Group Co Ltd
Current assignee: Southwest Aluminum Group Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-08-07
Anticipated expiration: 2029-11-28

Abstract

The utility model discloses a 2014 accurate wheel hub die forging's of aluminum alloy aviation blank, which comprises a cylindrical column, cylindrical bottom surface is provided with positioning groove, the size of cylinder is thickness 200 and adds 205mm, and diameter 410 adds 430mm, mainly makes the metal upwards flow through the anti-crowded to the blank to fill the section of thick bamboo wall and the turn-ups of forging, its stability is better, and whole forming process is more reasonable, and the filling condition does not have the problem, does not have folding production yet, and the streamline is comparatively steady, and the shaping effect is better. Thereby improving the product quality.

Description

Blank of 2014 aluminum alloy aviation precision hub die forging

Technical Field

The utility model relates to a technical field is made to accurate wheel hub die forging of aviation, especially relates to a fine wheel hub die forging's of 2014 aluminum alloy aviation hair casting die blank.

Background

The large airplane is provided with a typical-specification forge piece which is the largest forge piece in the 2014 aluminum alloy aviation precision hub die forge piece, namely a half-wheel (inboard) die forge piece, wherein the half-wheel (inboard) die forge piece is a precision die forge piece and a disc die forge piece, the maximum outer hub size of a part is phi 593.3 × 309.1mm, and the maximum outer contour size of the die forge piece is phi 616.5 × 314.2 mm.

The inboard part of half wheel cabin is as shown in fig. 1 and 2, fig. 1 is the utility model provides a 2014 aluminum alloy aviation precision hub die forging's that provide first side view structure sketch map that the utility model provides, fig. 2 is the utility model provides a second side view structure sketch of 2014 aluminum alloy aviation precision hub die forging is a relatively complicated large-scale aluminum alloy forging, the maximum overall dimension of this forging is phi 600mm × 310mm, the cylindric maximum depth is 240mm, the section of thick bamboo wall minimum is only 7.6mm, the section of thick bamboo wall thickest department is 16mm, be a typical deep cylinder thin wall spare, its basic body is barrel 12, the upper portion of barrel 12 has annular epitaxial portion 11, the top of epitaxial portion 11 has interior recess, interior recess has 9 lugs 14 that are the annular arrangement with the inner wall handing-over department of barrel 12, the bottom of barrel 12 has 9 oval pits 13 that are the annular, specifically, this part is thin in the cylindric bottom, there are 9 evenly distributed's pit 13 simultaneously, the shape is complicated oval part, there are 9 lugs 14 on this upside, this part, the height of this is higher, the height of lug is less, the vertical projection defect area appears, the defect easily, the vertical projection is less.

The half-wheel (inboard) die forging is a precision die forging, namely a disc die forging, and has the advantages of deep cavity, thin wall, high rib, small fillet, more bosses at the inner cavity and the bottom and more complex cavity. The half-wheel (inboard) die forging has a large number of non-machined surfaces, small machining allowance, high surface quality requirement and extremely high dimensional precision requirement; the die forging has deep cavity, high and thin ribs and difficult precision die forging forming; the 2014 alloy is easy to generate coarse grains, and the uniformity of the structure performance is difficult to control; the safety performance requirement of the wheel hub is high, and the comprehensive performance requirement is extremely high. Therefore, the biggest difficulties of the hub die forging are large difficulty in controlling the size and the uniformity of the structure performance.

Therefore, how to provide a blank of a 2014 aluminum alloy aviation precision hub die forging to improve the product quality is a technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a 2014 accurate wheel hub die forging's of aluminum alloy gross die casting blank to improve product quality.

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

the blank of the 2014 aluminum alloy aviation precision hub die forging comprises a cylinder, wherein a positioning groove is formed in the bottom surface of the cylinder, the size of the cylinder is 205mm in thickness and 430mm in diameter, and the size of the cylinder is 200mm in thickness.

Preferably, the size of the cylinder is 200mm, 205mm and 420 mm.

Preferably, the size of the cylinder is 200mm in thickness and 410 mm and 430mm in diameter.

Preferably, the cylinder has a thickness of 200mm and a diameter of 420 mm.

Preferably, the cross section of the positioning groove is an inverted trapezoid.

Preferably, the edge of the positioning groove and the side wall of the cylinder are in circular arc transition.

Preferably, the arc is downwardly convex to form an annular protrusion.

The utility model provides a rough casting die blank of accurate wheel hub die forging of 2014 aluminum alloy aviation, comprises a cylinder, cylindrical bottom face is provided with positioning groove, the size of cylinder is thickness 200 and adds 205mm, and diameter 410 adds 430mm, mainly makes the metal upwards flow through the anti-extrusion to the blank to fill the section of thick bamboo wall and the turn-ups of forging, its stability is better, and whole forming process is more reasonable, and the filling condition does not have the problem, also does not have folding production, and the streamline is comparatively steady, and the shaping effect is better. Thereby improving the product quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 first side view structure schematic diagram of an 2014 aluminum alloy aviation precision hub die forging provided in the embodiment of the present invention;

fig. 2 is a second side view structural schematic diagram of the 2014 aluminum alloy aviation precision hub die forging provided in the embodiment of the present invention;

fig. 3 is a schematic cross-sectional structural diagram of a cylindrical blank according to an embodiment of the present invention;

FIG. 4 is a schematic view of a lower mold structure of the blank mold;

FIG. 5 is a schematic structural view of an ingot;

FIG. 6 is a schematic view of an ingot being placed in a blank-making mold;

FIG. 7 is a schematic view of the blank mold after pressing;

figure 8 is the utility model provides a schematic diagram that the fine wheel hub die forging of 2014 aluminum alloy aviation's hair casting die blank was placed in the hair pressing mould.

In the above FIGS. 1-8:

blank 1 of blank pressing part, epitaxial part 11, barrel 12, oval pit 13, lug 14, positioning groove 15, blank pressing part 2, lower mould 3 of blank making mould, ingot 4, blank pressing mould 5.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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. 3 to 8, fig. 3 is a schematic cross-sectional structural view of a cylindrical blank according to an embodiment of the present invention; FIG. 4 is a schematic view of a lower mold structure of the blank mold; FIG. 5 is a schematic structural view of an ingot; FIG. 6 is a schematic view of an ingot being placed in a blank-making mold; FIG. 7 is a schematic view of the blank mold after pressing; figure 8 is the utility model provides a schematic diagram that the fine wheel hub die forging of 2014 aluminum alloy aviation's hair casting die blank was placed in the hair pressing mould.

The utility model provides a 2014 accurate wheel hub die forging's of aluminum alloy aviation casting blank 1, as shown in figure 3, including the cylinder, the columniform bottom surface is provided with positioning groove 15, and the size of cylinder is thickness 200 + 205mm, and diameter 410 + 430mm mainly makes the metal flow upwards through the anti-extrusion to the blank to fill the section of thick bamboo wall and the turn-ups of forging, its stability is better, and whole forming process is more reasonable, and the filling condition does not have the problem, also does not have folding production, and the streamline is comparatively steady, and the shaping effect is better. Thereby improving the product quality.

Because the process of hair casting die blank 1 preparation hair casting die 2 goes on in a darker section of thick bamboo wall, workman's sight is obstructed when putting into the blank, and through the design blank mould, the utility model provides a bottom face of hair casting die blank 1 of 2014 aluminium alloy aviation accurate wheel hub die forging is provided with positioning groove 15, can directly put into hair casting die 5 automatic positioning after making the blank blanking to solve the location problem of blank when hair is pressed, as shown in fig. 8.

Fig. 4 is a schematic structural view of the lower die 3 of the blank making die, the upper die of the blank making die is a flat die, the shape of the flat die is the same as the lower side cavity of the blank pressing die 5, the lower sides of the blank pressing die are in one-to-one correspondence when the blank is forged and the blank is pressed, and therefore the positioning effect is achieved.

For further explaining the positioning effect of the blank making mold, the positioning mode is explained, as shown in fig. 5-8, fig. 5 is a schematic view of the structure of the ingot, fig. 6 is a schematic view of the ingot placed in the blank making mold, fig. 7 is a schematic view of the blank making mold after being pressed, and fig. 8 is a schematic view of the blank making mold blank of the 2014 aluminum alloy aviation precision hub die forging piece placed in the blank pressing mold.

Specifically, the size of the cylinder is 200-205mm in thickness and 420mm in diameter. The size of the cylinder is 200mm in thickness and 430mm in diameter. Most preferably, the cylinder has a dimension of 200mm thickness and 420mm diameter. The utility model provides a fine wheel hub die forging of 2014 aluminum alloy aviation's hair casting die blank 1 can put into hair pressing die 5 completely.

Wherein the cross section of the positioning groove 15 is an inverted trapezoid. The edge of the positioning groove 15 and the side wall of the cylinder are in arc transition. The arc is convex downwards to form an annular bulge.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A blank of a 2014 aluminum alloy aviation precision hub die forging is characterized by comprising a cylinder, wherein a positioning groove is arranged on the bottom surface of the cylinder,

the size of the cylinder is 200-205mm in thickness and 410-430mm in diameter.

2. The blank of 2014 aluminum alloy aviation precision hub die forging of claim 1, wherein the size of the cylinder is 200mm and 205mm in thickness and 420mm in diameter.

3. The blank of 2014 aluminum alloy aviation precision hub die forging of claim 1, wherein the size of the cylinder is 200mm in thickness and 410 mm in diameter and 430mm in diameter.

4. The blank of 2014 aluminum alloy aviation precision hub die forging of claim 1, wherein the size of the cylinder is 200mm in thickness and 420mm in diameter.

5. The blank of 2014 aluminum alloy aviation precision hub die forging of claim 4, wherein the cross section of the positioning groove is in an inverted trapezoid shape.

6. The blank of claim 1, wherein the positioning groove has an arc transition between the edge and the side wall of the cylinder.

7. The blank of 2014 aluminum alloy aviation precision hub die forging of claim 6, wherein the circular arc is downwardly convex to form an annular protrusion.