CN216297660U

CN216297660U - Continuous forming and finishing fine blanking die capable of improving corner collapse of fine blanking part

Info

Publication number: CN216297660U
Application number: CN202122779407.7U
Authority: CN
Inventors: 张坤; 李达; 归超; 王占锋; 王蒙; 张雷雷; 贾保松; 袁明君; 贺瑞华; 王丽娜
Original assignee: Henan Starlight Mechanical Co ltd
Current assignee: Henan Starlight Mechanical Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-15
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a continuous forming and finishing fine blanking die capable of improving corner collapse of a fine blanking part, which comprises a male die component and a female die component, wherein the male die component is positioned right above the female die component, an upper fixing plate is arranged at the lower end of the male die component, a forming male die and a blanking male die are arranged at the lower end of the upper fixing plate, a female die fixing plate is arranged at the upper end of the female die component, a forming female die and a blanking female die are arranged at the upper end of the female die fixing plate, the forming female die is positioned right below the forming male die, the blanking female die is positioned right below the blanking male die, and a counter pressing plate is arranged in the blanking female die. According to the utility model, by using the forming and bag pressing technology, only the forming and bag pressing gap and the bag pressing depth need to be controlled, and then the bag pressing gap and the bag pressing depth can be controlled, and the bag pressing device can be used for reversely clapping without repeated trimming and precutting reverse extrusion, so that trimming waste materials can not be generated, further the conditions of crushing and tearing of parts can not occur, the problem of corner collapse of a fine punching part can be well solved, and the finished product has good quality, a simple structure, simple maintenance and low cost.

Description

Continuous forming and finishing fine blanking die capable of improving corner collapse of fine blanking part

Technical Field

The utility model relates to the technical field of fine blanking, in particular to a continuous forming and finishing fine blanking die capable of improving the corner collapse of a fine blanking piece.

Background

The reduction of the collapse angle of the fine blanking part has very important significance for improving the performance and prolonging the service life of the fine blanking part. The corner collapse improvement of the existing fine blanking part is mainly realized by the improvement of a fine blanking die and the innovation of a fine blanking part processing method. In the prior art, a repeated trimming and pre-cutting backward extrusion method is adopted to correct the corner collapse, trimming small waste materials are difficult to clean, parts are easy to crush, the parts are likely to tear, and the defects that the structure of a die is complex, the maintenance is labor-consuming and time-consuming and the like in the prior art cannot be overcome.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a continuous forming and finishing fine blanking die capable of improving the corner collapse of a fine blanking piece, and the continuous forming and finishing fine blanking die can effectively solve the problems in the background technology.

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

a continuous forming and finishing fine blanking die capable of improving the corner collapse of a fine blanking piece comprises a male die component and a female die component, the male die component is positioned right above the female die component, the lower end of the male die component is provided with an upper fixing plate, the lower end of the upper fixing plate is provided with a forming male die and a blanking male die, the upper end of the female die component is provided with a female die fixing plate, the upper end of the female die fixing plate is provided with a forming female die and a blanking female die, the forming female die is positioned under the forming male die, the blanking female die is positioned under the blanking male die, a back pressure plate is arranged in the blanking female die, a nitrogen spring is arranged on the lower wall of the forming female die, a reverse ejection punch is arranged at the upper end of the nitrogen spring, a pressure plate is arranged between the male die component and the female die component, the lower ends of the forming male die and the blanking male die penetrate through the pressure plate and respectively extend into the forming female die and the blanking female die.

Preferably, the male die assembly comprises a male die base, an upper base plate is mounted at the lower end of the male die base, and the lower end of the upper base plate is fixedly connected with the upper end of the upper fixing plate.

Preferably, the die assembly comprises a die base, wherein three lower base plates are fixedly mounted in the middle of the die base, and the lower base plates are in close contact with each other.

Preferably, the upper end face of the lower backing plate on the uppermost side is flush with the upper end face of the female die base.

Preferably, the sum of the thicknesses of the three lower backing plates is equal to the thickness of the female die base.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the continuous forming and finishing fine blanking die capable of improving the corner collapse of the fine blanking part, by using the forming and pressing technology, only the forming and pressing gap and the pressing depth are required to be controlled, then reverse leveling is performed, repeated trimming and precutting reverse extrusion are not required, trimming waste materials are not generated, the conditions of part crushing and tearing are avoided, and the corner collapse problem of the fine blanking part is well solved;

2. the production process is simple, the production efficiency is high, and the method is suitable for processing parts with complicated geometric shapes;

3. the obtained product has good quality and a full bright band, the roughness Ra of the shearing surface can reach 0.3-0.5, and parts with small collapse angles can be directly used for mechanical assembly, so that the strength and the performance of mechanical products are improved, and the subsequent processing procedure is omitted;

4. the whole die is simple in structure, low in cost and simple and convenient to maintain.

Drawings

FIG. 1 is a schematic view of an overall structure of a continuous forming and finishing fine blanking die capable of improving corner collapse of a fine blanking part according to the present invention;

FIG. 2 is a schematic diagram of the overall structure of a male die assembly of a continuous forming finishing blanking die capable of improving the corner collapse of a fine blanking part according to the utility model;

FIG. 3 is a schematic diagram of the overall structure of a female die assembly of a continuous forming finishing blanking die capable of improving the corner collapse of a fine blanking part according to the present invention;

fig. 4 is a schematic structural diagram of a pressing plate of a continuous forming finishing punch die capable of improving corner collapse of a fine punch according to the present invention.

In the figure: 1. forming a male die; 2. blanking male dies; 3. an upper fixing plate; 4. a counter-pressure plate; 5. blanking female dies; 6. a nitrogen spring; 7. a reverse ejection punch; 8. forming a female die; 9. fixing a female die plate; 10. a material pressing plate; 11. a male die assembly; 12. a female die assembly; 21. a male die base; 22. an upper base plate; 31. a female die base; 32. and a lower cushion plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a continuous forming and finishing fine blanking die capable of improving the corner collapse of a fine blanking part comprises a male die assembly 11 and a female die assembly 12, wherein the male die assembly 11 is located right above the female die assembly 12, an upper fixing plate 3 is installed at the lower end of the male die assembly 11, a forming male die 1 and a blanking male die 2 are installed at the lower end of the upper fixing plate 3, a female die fixing plate 9 is installed at the upper end of the female die assembly 12, a forming female die 8 and a blanking female die 5 are opened at the upper end of the female die fixing plate 9, the forming female die 8 is located right below the forming male die 1, the blanking female die 5 is located right below the blanking male die 2, a counter-pressing plate 4 is installed in the blanking female die 5, a nitrogen spring 6 is installed at the lower wall of the forming female die 8, a reverse ejection punch 7 is installed at the upper end of the nitrogen spring 6, a material pressing plate 10 is arranged between the male die assembly 11 and the female die assembly 12, and the lower ends of the forming male die 1 and the male die 2 both penetrate through the material pressing plate 10 and respectively extend into the forming female die 8 and the blanking female die 5.

The male die component 11 comprises a male die base 21, an upper backing plate 22 is arranged at the lower end of the male die base 21, and the lower end of the upper backing plate 22 is fixedly connected with the upper end of the upper fixing plate 3; the female die assembly 12 comprises a female die base 31, three lower backing plates 32 are fixedly arranged in the middle of the female die base 31, and the three lower backing plates 32 are in close contact with each other; the upper end surface of the uppermost lower backing plate 32 is flush with the upper end surface of the female die base 31; the sum of the thicknesses of the three lower backing plates 32 is equal to the thickness of the female die base 31; the upper ends of the forming convex die 2 and the blanking convex die 5 extend into the upper fixing plate 3.

The utility model relates to a continuous forming and finishing fine blanking die capable of improving the corner collapse of a fine blanking piece, which comprises the following use steps of: firstly, punching a pilot hole; secondly, conducting guide pin guide, and thirdly; according to the corner collapse requirement of a fine punching piece, profiling and pressing, wherein the allowance of a profiling area from the size of a final product is 8% -10% of the thickness of the material, meanwhile, the pressing depth is controlled to be 75% -80% of the thickness of the material, in the process of pressing, a reverse ejection punch 7 is used for reversely pressing the material, meanwhile, the pressing depth is controlled, and the material is ejected out of a forming female die 8 under the action of a nitrogen spring 6; fourthly, utilizing the mold closing force of the material pressing plate 10 and the female mold fixing plate 9 to reversely beat the bulge of the press bag; and fifthly, fine blanking, blanking and punching the small gap to obtain a qualified fine blanking piece with a small collapse angle and full brightness.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a can improve continuous forming finishing fine blanking mould that fine blanking piece collapsed angle, includes terrace die subassembly (11) and die assembly (12), its characterized in that: the punch assembly (11) is positioned over the die assembly (12), the upper fixing plate (3) is installed at the lower end of the punch assembly (11), the forming punch (1) and the blanking punch (2) are installed at the lower end of the upper fixing plate (3), the die fixing plate (9) is installed at the upper end of the die assembly (12), the forming die (8) and the blanking die (5) are opened at the upper end of the die fixing plate (9), the forming die (8) is positioned under the forming punch (1), the blanking die (5) is positioned under the blanking punch (2), the counter pressing plate (4) is installed in the blanking die (5), the nitrogen spring (6) is installed on the lower wall of the forming die (8), the counter top punch (7) is installed at the upper end of the nitrogen spring (6), and the pressure pressing plate (10) is arranged between the punch assembly (11) and the die assembly (12), the lower ends of the forming male die (1) and the blanking male die (2) penetrate through the pressure plate (10) and respectively extend into the forming female die (8) and the blanking female die (5).

2. The continuous forming finishing blanking die capable of improving the corner collapse of the fine blanking piece as claimed in claim 1, wherein: the male die component (11) comprises a male die base (21), an upper base plate (22) is installed at the lower end of the male die base (21), and the lower end of the upper base plate (22) is fixedly connected with the upper end of the upper fixing plate (3).

3. The continuous forming finishing blanking die capable of improving the corner collapse of the fine blanking piece as claimed in claim 2, wherein: die subassembly (12) include die base (31), die base (31) middle part fixed mounting has three lower bolster (32), and is three lower bolster (32) each other in close contact with.

4. The continuous forming finishing blanking die capable of improving the corner collapse of the fine blanking piece as claimed in claim 3, wherein: the upper end surface of the lower backing plate (32) on the uppermost side is flush with the upper end surface of the female die base (31).

5. The continuous forming finishing blanking die capable of improving the corner collapse of the fine blanking piece as claimed in claim 4, wherein: the sum of the thicknesses of the three lower backing plates (32) is equal to the thickness of the female die base (31).