CN110695280A

CN110695280A - Metal punch forming forging method

Info

Publication number: CN110695280A
Application number: CN201911031186.6A
Authority: CN
Inventors: 陈新; 韩长青; 王国华
Original assignee: Xuzhou Pengyuan Forging Co Ltd
Current assignee: Xuzhou Pengyuan Forging Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-01-17

Abstract

The invention discloses a metal punch forming forging method, which specifically comprises the following steps: the blank to be punched is placed on the lower pressing die and limited, the lower pressing die moves on the guide rail through the moving assembly, and when the upper pressing die is arranged at the lower end of the upper pressing die, the moving assembly stops moving; starting an oil cylinder driving assembly to drive an upper pressing die to move downwards on a sliding rail and stretch a first spring to reduce impact on stamping, and the die cavities of the upper pressing die and the lower pressing die are matched with each other to forge and stamp blanks; after forging impact is finished, the upper pressing die of the oil cylinder driving assembly moves upwards, the moving assembly drives the lower pressing die to continue moving to the blanking position on the guide rail, the material ejecting cylinder located below the lower pressing die is started, the telescopic end of the material ejecting cylinder drives the supporting plate to move up and down in the through hole, the stamping forming part is ejected, and the material taking device takes the stamping forming part. The metal stamping forming forging method realizes automatic stamping forging of blanks, realizes ejection, avoids manual operation and is more efficient.

Description

Metal punch forming forging method

Technical Field

The invention relates to the field of forging processing, in particular to a metal punch forming forging method.

Background

Forging is one of the main processes in the machine manufacturing industry to provide blanks for machine parts. The forging process can obtain mechanical parts in certain shape and size, improve the microstructure inside the metal part and raise the mechanical performance and physical performance of the workpiece.

In the mechanical part, concave type part is very general, and the forging processing mode of this type of part utilizes forging and pressing machinery's drift to carry out stamping forming to the stock often, and traditional stamping processing method needs to place the blank of preprocessing on the shaping chamber, and nevertheless inconvenient spacing impact that produces when causing the blank punching press makes the blank warp great, and the blank needs the manual work to take out in addition after holding intracavity stamping forming, reduce efficiency.

Disclosure of Invention

The invention provides a metal punch forming forging method which is simple to operate, realizes automatic punch forging of blanks, realizes ejection, avoids manual operation and is more efficient.

In order to achieve the purpose, the metal punch forming forging method specifically comprises the following steps

(1) The blank to be punched is placed on the lower pressing die, a plurality of adjusting rods are adjusted, the adjusting rods drive the limiting plate to limit the blank, the lower pressing die moves on the guide rail through the moving assembly, when the lower end of the upper pressing die is reached, the first sensing assembly is started in a sensing mode, and the controller controls the moving assembly to stop moving;

(2) starting an oil cylinder driving assembly to drive an upper pressing die to move downwards on a sliding rail, stretching a first spring to reduce impact on stamping, and forging and stamping a blank by matching die cavities of the upper pressing die and a lower pressing die to obtain a stamped and formed part;

(3) after forging impact is finished, the oil cylinder drives the upper pressing die of the assembly to move upwards, the upper pressing die is enabled to rise rapidly under the tension of the first spring, the moving assembly drives the lower pressing die to continue to move to a blanking position on the guide rail, the second sensing assembly is started in a sensing mode, the controller controls the material ejecting cylinder located below the lower pressing die to start, the lower end of the lower pressing die cavity is provided with a through hole, the telescopic end of the material ejecting cylinder drives the supporting plate to move up and down in the through hole, a stamping forming part is ejected, and the material taking device located at the blanking position takes a stamping forming part;

(4) and (4) grinding and polishing the punched and formed part taken out in the step (3).

Further, the blank is pretreated in the step (1), and the method specifically comprises the following steps:

(1) cutting a raw material: cutting the metal into blanks of desired dimensions;

(2) blank pretreatment: grinding and polishing the cut blank, and coating the surface of the blank by using an oxidizing composition;

(3) bending the blank: and (3) placing the blank pretreated in the step (2) into a prefabricated die needing to be bent for bending, and finishing the preprocessing of the blank to obtain the punched blank.

Compared with the prior art, the metal punch forming forging method is suitable for blanks with different sizes because the blanks are limited on the lower pressing die, the lower pressing die moves left and right on the guide rail through the moving assembly, when the lower pressing die moves to the position below the upper pressing die, the lower pressing die stops moving, the oil cylinder driving assembly is started at the moment to drive the upper pressing die to move up and down on the slide rail, the forging and stamping of the blanks are realized through the mutual matching of the upper pressing die and the lower pressing die, when the lower pressing is carried out, the first spring is tensioned, the impact on the forging and stamping is effectively realized at the moment, and when the upper pressing die ascends, the upper pressing die is convenient to lift and descend through the first; after stamping forming, start the liftout cylinder, drive the backup pad and jack-up the stamping forming spare that is located the die cavity, realize the liftout to the part, avoid its absorption and manual operation in the mould main part, it is more convenient. The metal stamping forming forging method is simple to operate, automatic stamping forging of blanks is achieved, ejection is achieved, manual operation is avoided, and the method is more efficient.

Detailed Description

The metal punch forming forging method is characterized in that a blank is pretreated firstly to meet the requirement of part production, and the condition of inconvenient treatment after forging and stamping is avoided, namely the method specifically comprises the following steps:

(1) cutting a raw material: the metal is cut into blanks of the desired size. Structures such as circles;

(2) blank pretreatment: grinding and polishing the cut blank, and coating the surface of the blank by using an oxidizing composition; the damage of the blank caused by cutting is eliminated by grinding and polishing, the condition that the local position is inconvenient to clean after forging and stamping is avoided, and the surface is treated to avoid oxidation;

(3) bending the blank: and (3) placing the blank pretreated in the step (2) into a prefabricated die needing to be bent for bending, and finishing the preprocessing of the blank to obtain the punched blank. When forging and stamping, some parts need to be bent so as to facilitate the situations of limiting, fixing, part forming and the like, and finally obtain processed blank parts;

and then forging and stamping the blank, which comprises the following steps:

According to the metal punch forming forging method, the blank is limited on the lower pressing die, the metal punch forming forging method is suitable for blanks with different sizes, the lower pressing die moves left and right on the guide rail through the moving assembly, the lower pressing die stops moving when moving to the position below the upper pressing die, the oil cylinder driving assembly is started at the moment to drive the upper pressing die to move up and down on the slide rail, the blank is forged and stamped through the mutual matching of the upper pressing die and the lower pressing die, the first spring is tensioned when the blank is pressed down, impact on the forging and stamping is effectively realized at the moment, and when the blank rises, the upper pressing die can be conveniently lifted and lowered through the first spring; after stamping forming, start the liftout cylinder, drive the backup pad and jack-up the stamping forming spare that is located the die cavity, realize the liftout to the part, avoid its absorption and manual operation in the mould main part, it is more convenient. The metal stamping forming forging method is simple to operate, automatic stamping forging of blanks is achieved, ejection is achieved, manual operation is avoided, and the method is more efficient.

Claims

1. The metal stamping forming forging method is characterized by comprising the following steps

2. The metal punch forming forging method according to claim 1, wherein the blank is pretreated in the step (1), and the method specifically comprises the following steps: