CN219616499U

CN219616499U - Reverse stamping die

Info

Publication number: CN219616499U
Application number: CN202320831077.8U
Authority: CN
Inventors: 赵红轩
Original assignee: Yaosheng Wanfeng Electronic Technology Kunshan Co ltd
Current assignee: Yaosheng Wanfeng Electronic Technology Kunshan Co ltd
Priority date: 2023-04-14
Filing date: 2023-04-14
Publication date: 2023-09-01
Anticipated expiration: 2033-04-14

Abstract

The utility model discloses a reverse stamping die, which comprises: the upper die is internally provided with a stripper plate insert; the lower die is provided with a lower die plate insert, and a lower die punch is arranged in the lower die plate insert, so that the lower die punch corresponds to the stripper plate insert. According to the utility model, the punch is fixedly arranged on the lower die plate from bottom to top in the stamping direction, so that downward corner collapse and burrs of the stamping part caused by stamping can be avoided, and the processing design requirement of the functional area is met. The cross sections of the stripper plate punch and the lower die plate punch are correspondingly designed, so that stamping parts with various shapes can be stamped.

Description

Reverse stamping die

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a reverse stamping die.

Background

A stamping die is a special process equipment for processing a material (metal or nonmetal) into a part (or a semi-finished product) in cold stamping processing, and is called a cold stamping die (commonly called a cold stamping die). Stamping is a press working method in which a material is pressed at room temperature by a die attached to a press to be separated or plastically deformed, thereby obtaining a desired part. The stamping die may be classified into a blanking die, a bending die, a drawing die, a forming die, and the like according to the process properties.

When the blanking die is used for punching, quality problems such as corner collapse, burrs and the like can occur on the periphery of the punch.

Disclosure of Invention

The utility model aims to provide a reverse stamping die.

To achieve the above object, the present utility model adopts the following:

a reverse stamping die, comprising: the upper die is internally provided with a stripper plate insert;

the lower die is provided with a lower die plate insert, and a lower die punch is arranged in the lower die plate insert, so that the lower die punch corresponds to the stripper plate insert.

Preferably, the stripper plate insert is provided with a polygonal opening.

Preferably, the cross section of the lower die punch is the same as the opening of the stripper plate insert.

Preferably, the stripper plate insert is provided with a circular opening.

Preferably, the cross section of the lower die punch is the same as the opening area of the stripper plate insert, and is circular.

Preferably, the lower die punch is fixedly arranged on the lower die plate insert, and the upper end part of the lower die punch is higher than the surface of the lower die.

Preferably, a fixed block is arranged at the bottom of the lower die punch.

The utility model has the following advantages:

1. according to the utility model, the punch is fixedly arranged on the lower die plate from bottom to top in the stamping direction, so that downward corner collapse and burrs of the stamping part caused by stamping can be avoided, and the processing design requirement of the functional area is met.

2. The cross sections of the stripper plate insert and the lower die punch are correspondingly designed, so that stamping parts with various shapes can be stamped.

Drawings

The following describes the embodiments of the present utility model in further detail with reference to the drawings;

FIG. 1 is a schematic diagram of a front view of a reverse punching die of the present utility model;

FIG. 2 is a schematic view of the internal structure of a reverse punching die according to the present utility model;

FIG. 3 is a schematic view of a reverse press die of the present utility model in a closed configuration;

FIG. 4 is a schematic diagram of a prior art processing configuration;

in the drawings, each reference numeral is:

1-upper die, 2-stripper plate insert, 3-lower die, 4-lower die plate insert, 5-lower die punch and 501-fixed block.

Detailed Description

In order to more clearly illustrate the present utility model, the present utility model will be further described with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this utility model is not limited to the details given herein.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 4, a reverse punching die includes: the upper die 1 is internally provided with a stripper plate insert 2;

the lower die 3, be provided with lower bolster income son 4 on the lower bolster income son 3 to be provided with lower die punch 5 in lower bolster income son 4, make lower die punch 5 correspond to take off flitch income son 2.

Obviously, compared with the traditional upper die and lower die which are used for stamping from top to bottom, the fixed punch is adopted, and the die clamping driving force of the upper die and the lower die is larger from bottom to top in the stamping direction, so that the higher acceleration can be realized during stamping.

It is worth mentioning that the top-down stamping causes the corner collapse and the burr to be directed downwards, so that the functional area affecting the lower surface is affected, which is not allowed for high-precision metal parts, whereas the bottom-up stamping eliminates such effects.

Obviously, this design is not achieved by the prior art reverse placement of the stamping, because the stamping is subjected to a large number of machining processes, the stamping is typically machined to a wide variety of shapes, and the lower die plate is typically designed to accommodate the machined area, while the upper die is also only responsible for a lower press, without excessive surface treatment, which would result in the inability to machine the other processes before and after the metal piece is merely placed in reverse.

Further, a polygonal opening is formed in the stripper plate insert 2. The cross section of the lower punch 5 is the same as the opening of the stripper plate insert 2.

Further, a circular opening is formed in the stripper plate insert 2. The cross section of the lower punch 5 is the same as the opening area of the stripper plate insert 2, and is circular.

Further, the lower die punch 5 is fixedly arranged on the lower die plate insert 4, and the upper end part of the lower die punch is higher than the surface of the lower die 3.

Further, a fixed block is arranged at the bottom of the lower die punch.

According to the utility model, the punch is fixedly arranged on the lower die plate from bottom to top in the stamping direction, so that downward corner collapse and burrs of the stamping part caused by stamping can be avoided, and the processing design requirement of the functional area is met. The cross sections of the stripper plate insert and the lower die punch are correspondingly designed, so that stamping parts with various shapes can be stamped.

It should be understood that the foregoing examples of the present utility model are provided merely for clearly illustrating the present utility model and are not intended to limit the embodiments of the present utility model, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present utility model as defined by the appended claims.

Claims

1. A reverse punching die, characterized by comprising: the upper die is internally provided with a stripper plate insert;

2. The reverse punching die according to claim 1, wherein the stripper plate insert is provided with a polygonal opening.

3. A counter punch die as claimed in claim 2, wherein the cross section of the lower die punch is the same as the opening of the stripper plate insert.

4. The reverse punching die according to claim 1, wherein the stripper plate insert is provided with a circular opening.

5. The reverse punching die according to claim 4, wherein the cross section of the lower die punch is circular and has the same opening area as the stripper plate insert.

6. The reverse punching die according to claim 1, wherein the lower die punch is fixedly arranged on the lower die plate insert, and the upper end portion of the lower die punch is higher than the surface of the lower die.

7. The reverse punching die according to claim 1, characterized in that a bottom of the lower die punch is provided with a fixing block.