CN111633171A - Small-pore ring type forging blank mold and forging process thereof - Google Patents

Abstract

The invention provides a small-hole ring type forging fetal membrane which comprises a forming die and a hole cutting die, wherein the forming die consists of an outer membrane sleeve, an upper die and a lower die, the hole cutting die consists of a backing ring and a hole cutting punch, and a cavity of the upper die is in an I shape when the upper die is spliced with the lower die. The forging process of the small-pore ring forging fetal membrane comprises the following specific operations: blank in the furnace: the material is No. 45, the raw material adopts phi 270 round steel, and the phi 270 round steel is subjected to preliminary forging in a furnace; forming in a mold: forming the forged piece after being taken out of the furnace in a forming die until the upper die and the lower die are completely embedded into the outer film sleeve of the forming die; punching by a hole cutting die: after the forge piece is discharged from the die, the forge piece is placed on a backing ring of a hole cutting film and is punched out by using a trimming punch, the forge piece is finished, and the forge piece is normalized in time after being forged.

Description

Small-pore ring type forging blank mold and forging process thereof

Technical Field

The invention relates to a forging process, in particular to a forging process of a small-pore ring type forging fetal membrane.

Background

With the progress of science and technology, production efficiency is pursued to be higher and higher, free forging machining allowance is smaller and smaller in order to shorten machining working hours, and it is very necessary to design a simple die to forge a forging with high precision, so that the die forging is also produced, the die forging is a process method for producing the forging by using a single-chamber die named as a die on free forging equipment, and the die forging generally adopts free forging pre-forging blank and then is finally formed in the die.

Disclosure of Invention

The invention provides a forging process of a small-pore ring type forging fetal membrane, which solves the problem that the existing free forging machining allowance is smaller and smaller, and the forging is not facilitated.

In order to solve the technical problems, the invention provides the following technical scheme:

the invention provides a small-hole ring type forging fetal membrane which comprises a forming die and a hole cutting die, wherein the forming die consists of an outer membrane sleeve, an upper die and a lower die, the hole cutting die consists of a backing ring and a hole cutting punch, and a cavity of the upper die is in an I shape when the upper die is spliced with the lower die.

A forging process of a small-pore ring forging fetal membrane comprises the following specific operations:

(1) blank in the furnace: the material is No. 45, the raw material adopts phi 270 round steel, and the phi 270 round steel is subjected to preliminary forging in a furnace;

(2) forming in a mold: forming the forged piece after being taken out of the furnace in a forming die until the upper die and the lower die are completely embedded into the outer film sleeve of the forming die;

(3) punching by a hole cutting die: and after the forged piece is taken out of the die, the forged piece is placed on a backing ring of the hole cutting film, the forged piece is punched by using a trimming punch, and is finished and immediately normalized after being forged.

Through the technical scheme, the invention has the beneficial effects that: the product has the advantages of simple design structure, easy production and processing, convenient use, high size precision and low rejection rate, the machining allowance is about 3mm of a single surface, the machining working hours are greatly shortened, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic view of a forming die;

fig. 2 is a schematic view of a hole cutting die.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

According to the small-pore ring type forging fetal membrane shown in the figure, the small-pore ring type forging fetal membrane comprises a forming die and a hole cutting die, wherein the forming die consists of an outer membrane sleeve, an upper die and a lower die, the hole cutting die consists of a backing ring and a hole cutting punch, and the cavity of the upper die is in an I shape when the upper die is spliced with the lower membrane.

A forging process of a small-pore ring forging fetal membrane comprises the following specific operations:

(1) blank in the furnace: the material is No. 45, the raw material adopts phi 270 round steel, and the phi 270 round steel is subjected to preliminary forging in a furnace;

(2) forming in a mold: forming the forged piece after being taken out of the furnace in a forming die until the upper die and the lower die are completely embedded into the outer film sleeve of the forming die;

(3) punching by a hole cutting die: after the forged piece is taken out of the die, the forged piece is placed on a backing ring of a hole cutting film, the forged piece is punched by a trimming punch, the forged piece is finished, and the forged piece is normalized in time

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (2)

1. The utility model provides a aperture lopps forging fetal membrane, includes forming die and cut hole mould, forming die comprises outer membrane cover, last mould, lower mould triplex, and the cut hole mould comprises backing ring, cut hole drift, its cavity shape is the I shape when going up the mould and lower membrane amalgamation.

2. A forging process of a small-pore ring forging fetal membrane comprises the following specific operations:

(1) blank in the furnace: the material is No. 45, the raw material adopts phi 270 round steel, and the phi 270 round steel is subjected to preliminary forging in a furnace;

(2) forming in a mold: forming the forged piece after being taken out of the furnace in a forming die until the upper die and the lower die are completely embedded into the outer film sleeve of the forming die;

(3) punching by a hole cutting die: and after the forged piece is taken out of the die, the forged piece is placed on a backing ring of the hole cutting film, the forged piece is punched by using a trimming punch, and is finished and immediately normalized after being forged.

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