CN221209735U

CN221209735U - Flat-shooting floating forming die for difficult-to-form material with flange plate nut

Info

Publication number: CN221209735U
Application number: CN202322628420.1U
Authority: CN
Inventors: 刘勇; 陈栋; 陈伟; 张娜
Original assignee: China Aviation Industry Standard Parts Manufacturing Co Ltd
Current assignee: China Aviation Industry Standard Parts Manufacturing Co Ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-06-25
Anticipated expiration: 2033-09-27

Abstract

The utility model discloses a flat-shooting floating forming die for a difficult-to-form material with a flange nut, which comprises a male die (1), a female die (2), a spring (3), a die pad (4), a lower pad (5) and a push rod (6), and is characterized in that the flat-shooting floating forming die comprises a die head (1); the upper surface of the lower pad (5) is provided with a die pad (4), a spring (3) is inserted into the die pad (4), the upper die (2) is placed in the die pad (4), and a push rod (6) is inserted into the die pad (5). The utility model has full tooth shape, easy demoulding of the nut with the flange plate, long service life and low cost.

Description

Flat-shooting floating forming die for difficult-to-form material with flange plate nut

Technical Field

The utility model belongs to the technical field of dies, and particularly relates to a flat-shooting floating forming die for a nut with a flange plate made of a difficult-to-form material.

Background

For a long time, the forming of difficult-to-form material nuts with flanges such as high-temperature alloy and the like is difficult, particularly the forming of twelve-angle or twelve-tooth nuts with flanges can be realized in the traditional mode forming mode, but during the forming, only a forming female die and a male die participate in forming, the metal flows to fill a female die cavity by a pressing hammer of a pressing machine in the later stage of forming, and the plastic property of a upsetting blank material is sharply reduced and the fluidity of upsetting metal is poor, so that the tooth forming is not full; in addition, the tooth shape is not full, so that the upsetting part meets the tooth shape plumpness requirement, in the traditional upsetting process, the metal flow can be forced to fill the cavity of the female die to increase the plumpness of the product only by adjusting the pressing hammer force and the pressing hammer clearance, so that the interaction force between the upsetting product and the position of the female die, which is close to the orifice, is large, the die is damaged when the product is withdrawn, the nut with the flange is difficult to demold, the die is seriously damaged when the upsetting is continued, the die is scrapped, and the service life of the die is prolonged, so that the cost of the die is prolonged.

Disclosure of Invention

The utility model aims to overcome the defects and provide the flat-shooting floating forming die for the nut with the flange, which has the advantages of full tooth-shaped forming, easy demoulding, long service life and low cost and is made of difficult-to-form materials.

The aim and the main technical problems are achieved by adopting the following technical scheme:

The utility model relates to a flat shooting floating forming die for a difficult-to-form material with a flange nut, which comprises a male die, a female die, a spring, a die pad, a lower pad and a push rod, and is characterized in that the flat shooting floating forming die comprises a die head, a female die, a spring, a die pad, a lower pad and a push rod; the upper surface of the lower pad is provided with a die pad, a spring is inserted into the die pad to put the upper concave die, and a push rod is inserted into the die pad and the lower pad.

The female die can float up and down.

The middle part of the female die is provided with a groove with a big upper part and a small lower part, and twelve corners or twelve teeth are arranged in the small groove.

The ejector rod can move up and down in the die cushion and the lower cushion.

And a male die is arranged on the female die.

Compared with the prior art, the utility model has obvious beneficial effects; the technical scheme is as follows: the upper die is placed on the lower pad by inserting a spring into the upper die pad, and the ejector rod is inserted into the lower pad and the lower pad.

Heating blank materials of a part to be formed and then placing the blank materials into a female die, enabling a male die to move downwards along with an upper die holder of a press machine, pressing the blank materials exposing the female die into the female die, basically forming the part, enabling a female die and a die pad to have floating quantity under the action of a spring after the male die is contacted with the female die, enabling the female die to move downwards along with the male die under the pushing force of the male die, enabling the male die, the female die and a push rod to form a closed forming cavity, enabling the forming cavity to be continuously contracted under the floating quantity of the female die and the die pad, enabling metal of the part to flow and deform under the strong pressure, finally enabling the part to be formed to be full, enabling the press machine to reach a bottom dead center when the floating quantity of the female die and the die pad is about to reach a limit, enabling the press machine to move upwards, enabling the push rod of the male die to push out the part under the action of a cylinder, unloading all the pressure, enabling the female die to recover an initial floating state under the action of the spring, enabling the surface quality to be better, and solving the problems that the traditional upsetting angle is full and cannot be full. In the aspect of the service life of the die, due to the introduction of the floating die pad, the upsetting is formed by the relative movement of the female die and the upsetting part in the final forming stage, and the forming mode has a buffer effect, reduces the impact on the die during the forming of the part, and prolongs the service life of the die by about 2 times, thereby reducing the cost of the die. The nut with the flange plate is easy to demould, and has long service life and low cost.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a top view of the female die of the present utility model;

FIG. 3 is a cross-sectional view of FIGS. 2 A-A;

FIG. 4 is a top view of the die pad of the present utility model;

FIG. 5 is a cross-sectional view of FIG. 4B-B;

FIG. 6 is a state of use of the present utility model;

FIG. 7 is a schematic view of the structure of a upsetting blank of the present utility model;

FIG. 8 is a right side view of the flange nut A of the present utility model;

FIG. 9 is a top view of the flange nut A of the present utility model;

FIG. 10 is a right side view of the flange nut B of the present utility model;

fig. 11 is a top view of the flange nut B of the present utility model.

Marking in the figures

1. The die comprises a male die, 2, a female die, 3, a spring, 4, a die pad, 5, a lower pad, 6, an ejector rod, 7, a lower die cavity, 8, an air cylinder ejector rod, 9, an upper die cavity, 10, a upsetting blank, 11, a lower die cavity locking back cap, 12, flange nuts A,13 and flange nuts B.

Detailed Description

The following detailed description of specific embodiments, structures, features and their functions according to the present utility model is provided with reference to the accompanying drawings and preferred embodiments.

The utility model relates to a flat-shooting floating forming die for a difficult-to-form material with a flange nut, which comprises a male die 1, a female die 2, a spring 3, a die pad 4, a lower pad 5 and a push rod 6, and is characterized in that; the die cushion 4 is arranged on the lower cushion 5, the four springs 3 are inserted into the die cushion 4, the female die 2 capable of floating up and down is arranged in the die cushion 4, the ejector rod 6 capable of moving up and down is inserted into the lower cushion 5, the middle part of the female die 2 is provided with a groove with a large upper part and a small lower part, twelve angles or twelve teeth are arranged in the small groove, and the male die 1 is arranged on the female die 2.

When in use, the male die 1 is arranged in the upper die cavity 9, the female die 2, the die cushion 4 and the lower cushion 5 are arranged in the lower die cavity 7, the upper die cavity locking back cap 11 is screwed, the floating quantity of the female die and the die cushion is regulated by the lower die cavity locking back cap 11, the male die 1 is fixedly locked, the pre-upsetting blank 10 of a part to be formed is heated and then is put into the forming female die 2, the male die 1 descends along with the upper die cavity 9 under the action of a press, the pre-upsetting blank 10 enters the forming female die 2 and then contacts with the top end surface of the ejector rod 6, the pre-upsetting blank 10 begins to deform and form in the female die 2 under the interaction of the male die 1 and the ejector rod 6, the male die 1 contacts with the female die 2 after basic forming is finished, at the moment, the lower end surface of the male die 1, the cavity of the female die 2 and the small end surface of the ejector rod 6 form a closed cavity, the press continues to descend, the pressure of the male die 1 and the female die 2 is transferred to the spring 3, the spring 3 is compressed until the female die 2 is gradually attached to the die pad 4, in the process of gradually attaching the female die 2 to the die pad 4, the male die 1, the female die 2, the die pad 4 and the ejector rod 6 are relatively displaced with the head of the formed flange nut A12 or the flange nut B13, the relative displacement promotes the male die 1 and the female die 2 to continuously compress the head of the formed flange nut A12 or the flange nut B13, the metal flow of the head of the flange nut A12 or the flange nut B13 is continued to fill the cavity of the female die 2 which is not filled in the earlier stage until the floating amount is full, the female die 2 is completely attached to the die pad 4, the relative displacement of the head of the male die 1, the cavity of the female die 2, the ejector rod 6 and the head of the formed flange nut A12 or the flange nut B13 is stopped, the press reaches the bottom dead center, the cavity of the female die 2 is completely filled, and the press is upward, the formed flange nut A12 or flange nut B13 is propped against the ejector rod 6 under the action of the cylinder ejector rod 8, the ejector rod 6 is propped against the movable flange nut A12 or flange nut B13 to withdraw, and the press machine reaches the top dead center to complete a working cycle.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, and any simple modification, equivalent variation and variation of the above embodiment according to the technical matter of the present utility model still fall within the scope of the technical scheme of the present utility model.

Claims

1. The flat-shooting floating forming die for the flange plate nut of the difficult-to-form material comprises a male die (1), a female die (2), a spring (3), a die pad (4), a lower pad (5) and a push rod (6) and is characterized in that; the upper surface of the lower pad (5) is provided with a die pad (4), a spring (3) is inserted into the die pad (4), the upper die (2) is placed in the die pad (4), and a push rod (6) is inserted into the die pad (5).

2. A flat-beat floating forming die for a difficult-to-form material flanged nut according to claim 1, characterized in that the female die (2) can float up and down.

3. The flat-shooting floating forming die for the difficult-to-form material flanged nuts, as claimed in claim 1, is characterized in that a groove with a large upper part and a small lower part is arranged in the middle of the female die (2), and twelve corners or twelve teeth are arranged in the small groove.

4. A flat-beat floating forming die for a difficult-to-form material flanged nut according to claim 1, characterized in that the ejector rod (6) can move up and down in the die pad (4) and the lower pad (5).

5. A flat-beat floating forming die for a difficult-to-form material flanged nut according to claim 1, characterized in that a male die (1) is mounted on the female die (2).