CN215902644U

CN215902644U - Forging burr-free structure

Info

Publication number: CN215902644U
Application number: CN202121737341.9U
Authority: CN
Inventors: 刘晓静; 李养娟; 李文新
Original assignee: Shaanxi Fast Auto Drive Group Co Ltd
Current assignee: Shaanxi Fast Auto Drive Group Co Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-02-25
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a burr-free structure of a forge piece.A burr-proof inclined plane is arranged at a die assembly gap of the forge piece; the height H of the burr-proof inclined plane is 0.5-1.0 mm; the angle beta of the burr-proof inclined plane is 20-30 degrees. The structure enables the finally prepared forge piece to meet the production requirement without a deburring process through the matching of the height and the angle, and has better practicability. Through the technical scheme, all forgings with sharp corner edges in the related field can achieve the burr-free treatment process, the process flow is greatly simplified, and the production efficiency is increased.

Description

Forging burr-free structure

Technical Field

The utility model belongs to the technical field of machinery, and particularly relates to a burr-free structure of a forge piece.

Background

Closed forging is a new forging mode in the forging industry. The forging mode has stable forming and high material utilization rate. But the problems that follow also arise. When the closed forging blank is vertically assembled, part of metal is generated at the assembly gap to form burrs. When machining, the burrs affect the machining positioning, so that before machining, a blank needs to be subjected to a deburring process. The process is time-consuming and labor-consuming, but burrs are affected by the blank temperature, the blanking precision, the die precision, the design structure and operators, so that the process is completely eliminated and has higher cost. Burrs have also become a recognized problem in the forging industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a burr-turning-free structure of a forge piece, which can enable the finally prepared forge piece to meet the production requirement without a deburring process through the matching of height and angle and has better practicability.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a burr-free structure of a forge piece is characterized in that a burr-proof inclined plane is arranged at a die assembly gap of the forge piece; the height H of the burr-proof inclined plane is 0.5-1.0 mm; the angle beta of the burr-proof inclined plane is 20-30 degrees.

A burr-free structure of a forge piece is characterized in that a burr-proof inclined plane is arranged at a die assembly gap of the forge piece; the height H of the burr-proof inclined plane is 1.0-2.0 mm; the angle beta of the burr-proof inclined plane is 15-20 degrees.

A burr-free structure of a forge piece is characterized in that a burr-proof inclined plane is arranged at a die assembly gap of the forge piece; the height H of the burr-proof inclined plane is more than 2.0 mm; the burr-proof inclined plane angle beta is 10-15 degrees.

A burr-free structure of a forge piece is provided with a forge piece body, wherein the diameter of the end surface of the forge piece body is larger than or equal to the designed diameter; a burr-proof inclined plane is arranged at the mold closing gap close to the end surface; the height of the burr on the burr-proof inclined plane is not more than 1.5mm on the end face.

A burr-free structure of a forge piece is provided with a forge piece body, wherein the diameter of the end surface of the forge piece body is larger than or equal to the designed diameter; a burr-proof inclined plane is arranged at the mold closing gap close to the end surface; the height of the burr on the burr-proof inclined plane is less than or equal to (H +1.5) mm.

Optionally, the height H of the burr-proof inclined plane is 0.5-1.0 mm; the angle beta of the burr-proof inclined plane is 20-30 degrees.

Optionally, the height H of the burr-proof inclined plane is 1.0-2.0 mm; the angle beta of the burr-proof inclined plane is 15-20 degrees.

Optionally, the height H of the burr-proof inclined plane is more than 2.0 mm; the burr-proof inclined plane angle beta is 10-15 degrees.

Through the technical scheme, all forgings with sharp corner edges in the related field can achieve the burr-free treatment process, the process flow is greatly simplified, and the production efficiency is increased.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a conventional tooling structure for a forging of the prior art;

FIG. 2 is a burr-free structure for machining a forging on the basis of FIG. 1;

FIG. 3 is a detailed dimensional relationship diagram of the structure of FIG. 2;

the reference numerals in the figures denote:

1-end face, 11-burr edge, 12-burr prevention inclined plane, L-end face diameter, H-burr prevention inclined plane height and beta-burr prevention inclined plane angle.

Detailed Description

The technical solution in 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. Obviously, the embodiments described below are only a part of the embodiments of the present invention, not all embodiments, and do not limit the present invention in any way, and all technical solutions using the embodiments, including simple changes made to the embodiments, belong to the protection scope of the present invention.

With reference to fig. 1-3, in the first forging burr-free structure of the utility model, a burr-preventing inclined plane 12 is arranged at a die assembly gap of the forging; the height H of the burr-proof inclined plane is 0.5-1.0 mm; the angle beta of the burr-proof inclined plane is 20-30 degrees. Due to the design of the height and the angle, the height of the burr is usually 0-0.6 mm; the mold closing gap mentioned in the disclosure refers to a gap which appears when the upper mold and the lower mold are pressed together; the design of the anti-burr inclined plane 12 can also be carried out at the position where burrs appear, the angle beta of the anti-burr inclined plane is mainly an inclined angle relative to the end surface 1, and the nearest plane can be selected to carry out inclined plane processing at different processing positions; the burr-proof bevel 12 in the present disclosure does not completely eliminate the burr, but reduces the height of the burr as much as possible to meet the production requirements.

In the structure of the second scheme, the burr-proof inclined plane 12 is arranged at the die assembly gap of the forge piece; the height H of the burr-proof inclined plane is 1.0-2.0 mm; the angle beta of the burr-proof inclined plane is 15-20 degrees. Due to the design of the height and the angle, the height of the burrs which usually occur is 0-1.0 mm.

In the structure of the second scheme, the burr-proof inclined plane 12 is arranged at the die assembly gap of the forge piece; the height H of the burr-proof inclined plane is more than 2.0 mm; the angle beta of the burr-proof inclined plane is 10-15 degrees. Due to the design of the height and the angle, the height of the burrs which usually occur is 0-0.8 mm.

Specifically, as shown in the forging burr-free structure shown in fig. 1-3, a forging body is arranged, and the diameter of the end surface 1 of the forging body is larger than or equal to the designed diameter; a burr-proof inclined plane 12 is arranged at the mold closing gap position close to the end surface 1; the height of the burr on the burr-proof inclined plane 12 is not more than 1.5mm above the end surface; or the height of the burr on the burr-proof inclined plane 12 is less than or equal to (H +1.5) mm. Taking a certain forging of a company as an example, fig. 1 is an original design blank, a burr edge 11 shown in the figure is a mold closing gap, and fig. 2 is an improved blank. The burr-proof inclined plane 12 is made at the burr-out position of the improved blank, and the burr working procedure is not required to be added as long as the position of the burr-out end face is less than or equal to 1.5 mm. And performing optimization simulation design on the forging piece pre-finish forging upper die, and ensuring that the burr of each blank can be smaller than a specified value, so that a burr turning process is cancelled, and the burr turning-free requirement is met.

All factors which can generate burrs are considered, the design is re-optimized, and the closed forging deburring process is cancelled. Taking a certain forging of a company as an example, fig. 1 is an original design blank, and fig. 2 is an improved blank. The burr-proof structure is made at the burr position to the blank after the improvement, as long as the burr surpasss the terminal surface position and is less than or equal to within 1.5mm, all need not to increase the car burr process. And performing optimization simulation design on the forging piece pre-finish forging upper die, and ensuring that the burr of each blank can be smaller than a specified value, so that a burr turning process is cancelled, and the burr turning-free requirement is met.

1) When the end face diameter L in the figure 3 is designed, the allowance of the forged piece is required to be larger than or equal to the design allowance.

2) The selection of the angles β, β of the burr-proof chamfer in fig. 3 is shown in table 1:

TABLE 1

3) The allowable height of the blank without turning burrs is less than or equal to (H +1.5) mm.

The structure is used in actual production, and the actual use effect meets the design requirement. More than 92% of forgings produced by the existing equipment can achieve the purpose of no need of turning the forgings. The average height of the burrs is 0-1.0 mm.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A burr-free structure of a forge piece is characterized in that a burr-proof inclined plane (12) is arranged at a die assembly gap of the forge piece;

the height H of the burr-proof inclined plane is 0.5-1.0 mm;

the angle beta of the burr-proof inclined plane is 20-30 degrees.

2. A burr-free structure of a forge piece is characterized in that a burr-proof inclined plane (12) is arranged at a die assembly gap of the forge piece;

the height H of the burr-proof inclined plane is 1.0-2.0 mm;

the angle beta of the burr-proof inclined plane is 15-20 degrees.

3. A burr-free structure of a forge piece is characterized in that a burr-proof inclined plane (12) is arranged at a die assembly gap of the forge piece;

the height H of the burr-proof inclined plane is more than 2.0 mm;

the burr-proof inclined plane angle beta is 10-15 degrees.

4. A forging burr-free structure is characterized in that a forging body is arranged, and the diameter of the end face (1) of the forging body is larger than or equal to the designed diameter;

a burr-proof inclined plane (12) is arranged at the mold closing gap close to the end surface (1);

the height of the burr on the burr-proof inclined plane (12) is not more than 1.5mm on the end surface.

5. A forging burr-free structure is characterized in that a forging body is arranged, and the diameter of the end face (1) of the forging body is larger than or equal to the designed diameter;

the height of the burr on the burr-proof inclined plane (12) is less than or equal to (H +1.5) mm.

6. The forging turning-burr-free structure of claim 4 or 5, wherein the burr-proof slope height H is 0.5-1.0 mm;

the angle beta of the burr-proof inclined plane is 20-30 degrees.

7. The forging turning-burr-free structure of claim 4 or 5, wherein the burr-proof slope height H is 1.0-2.0 mm;

the angle beta of the burr-proof inclined plane is 15-20 degrees.

8. The forging burr-free structure of claim 4 or 5, wherein the burr prevention slope height H is > 2.0 mm;

the burr-proof inclined plane angle beta is 10-15 degrees.