CN220717680U

CN220717680U - Transitional flange forging device

Info

Publication number: CN220717680U
Application number: CN202322339577.2U
Authority: CN
Inventors: 张建; 万里杨; 许开前
Original assignee: Sichuan Minsheng Special Steel Forging Co ltd
Current assignee: Sichuan Minsheng Special Steel Forging Co ltd
Priority date: 2023-08-30
Filing date: 2023-08-30
Publication date: 2024-04-05
Anticipated expiration: 2033-08-30

Abstract

The utility model relates to the technical field of forging and discloses a transitional flange forging device which comprises a workbench, an upper moving die and a lower moving die, wherein a hollow die is fixedly penetrated on the workbench, the upper moving die and the lower moving die are respectively positioned right above and right below the hollow die, the upper moving die and the lower moving die move along the axial direction of the hollow die, an upper die cavity is formed in the bottom of the upper moving die, a lower die cavity is formed in the top of the lower moving die, and a transitional section forming space is formed by the bottom of the upper moving die, the top of the hollow die, the top of the lower moving die and the bottom of the hollow die. The blank is fed through the hollow die, then the upper moving die and the lower moving die are clamped, so that the blank is forged and extruded, the blank is deformed into a transition section in a space formed by the two transition sections after being extruded, and the two transition sections can be forged on the flange plate by once clamping, so that the production efficiency is improved.

Description

Transitional flange forging device

Technical Field

The utility model relates to the technical field of forging, in particular to a transitional flange forging device.

Background

The flange is a part for connecting the shafts and is used for connecting the pipe ends; the flange is also used for connecting two devices, can be divided into a plate type flat welding flange, a transition flange, a threaded flange and the like according to different structural characteristics, the transition flange is used for forging a transition section on the side wall of the flat welding flange, in the preparation process of the transition flange, a transition section is required to be machined by using a transition flange forging die, the existing forging die can only forge one transition section on the side wall of the flange, in practice, the transition flange with two transition sections is required to be used in some fields, the transition flange with the two transition sections cannot be directly forged and machined by using the existing forging die, and the transition sections are required to be forged at the two ends of the flange respectively, so that time and effort are wasted, and the production efficiency is lower.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a transitional flange forging device which can forge a transitional flange with two transitional sections at one time, thereby improving the production efficiency.

The aim of the utility model is realized by the following technical scheme: the utility model provides a transition flange forging device, includes workstation, goes up movable mould and lower movable mould, fixed wears to be equipped with the cavity mould on the workstation, go up movable mould and lower movable mould and be located respectively directly over the cavity mould and under, go up movable mould with lower movable mould is all along the axial displacement of cavity mould, go up the bottom of movable mould and seted up the die cavity, the lower die cavity has been seted up at the top of movable mould down, go up movable mould's bottom surface and cavity mould's top surface the top surface of movable mould and cavity mould's bottom surface all form the changeover portion and form the space with cavity mould's bottom surface down.

Adopt above-mentioned technical scheme's effect is, pass the cavity mould with the stock and carry out the material loading, makes the both ends of stock be located die cavity and lower die cavity respectively, then goes up movable mould and lower movable mould and all is close to the cavity mould and remove the compound die to forge the extrusion to the stock, the stock receives and can form the changeover portion at two changeover portion formation spaces internal deformation after the extrusion, thereby once the compound die just can forge two changeover portion on the ring flange, has improved production efficiency.

In some embodiments, a mandrel is disposed in the upper die cavity, the mandrel is disposed coaxially with the upper moving die, and a mandrel hole through which the mandrel passes is formed in the lower moving die.

In some embodiments, the upper moving die is provided with a mounting hole in a penetrating manner, the mounting hole and the upper moving die are coaxially arranged, a mounting ring is fixed at the top of the mandrel and is adapted to the mounting hole, and the axial length of the mounting ring is equal to that of the mounting hole.

In some embodiments, a first flange is fixed to the top of the mounting ring, the first flange having a diameter greater than the diameter of the mounting hole, the first flange being bolted to the top of the upper moving die.

In some embodiments, the lower moving mold comprises a hollow lower mold and a mandrel base, wherein an annular base is fixed at the bottom of the hollow lower mold, the mandrel base is arranged in the hollow lower mold and is contacted with the annular base, the mandrel Kong Kaishe is arranged on the mandrel base, the inner diameter of the mandrel hole is equal to the diameter of the mandrel, and the outer wall of the mandrel base is contacted with the inner wall of the hollow lower mold.

In some embodiments, a connecting frame is fixed at the top of the upper moving die, the connecting frame is -shaped, the top of the connecting frame is connected with an upper punching machine head, and the bottom of the lower moving die is connected with a lower punching mechanism.

In some embodiments, a second flange is fixedly sleeved on the hollow mold, and the second flange is connected with the workbench through bolts.

The beneficial effects of the utility model are as follows:

the blank is fed through the hollow die, two ends of the blank are respectively positioned in the upper die cavity and the lower die cavity, and then the upper moving die and the lower moving die are both close to the hollow die and move to be matched with each other, so that the blank is forged and extruded, the blank is deformed into transition sections in two transition section forming spaces after being extruded, the two transition sections can be forged on the flange plate by one-time die matching, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of a transition flange forging apparatus according to the present utility model;

FIG. 2 is a schematic view of the internal structure of a transition flange forging apparatus according to the present utility model;

in the figure, a working table 1, a moving die 2, a moving die 3, a hollow die 4, an upper die cavity 5, a lower die cavity 6, a mandrel 7, a mandrel hole 8, a mounting hole 9, a mounting ring 10, a first flange 11, a hollow lower die 12, a mandrel seat 13, an annular base 14, a connecting frame 15, an upper punch head 16, a lower punch mechanism 17 and a second flange 18.

Detailed Description

The technical solution of the present utility model will be described in further detail with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following description.

The utility model provides a transition flange forging device, including workstation 1, go up movable mould 2 and lower movable mould 3, the fixed cavity mould 4 that wears to be equipped with on the workstation 1, go up movable mould 2 and lower movable mould 3 and be located respectively directly over and under the cavity mould 4, go up movable mould 2 and lower movable mould 3 and all move along the axial of cavity mould 4, go up the bottom of movable mould 2 and seted up die cavity 5, lower cavity 6 has been seted up at the top of lower movable mould 3, go up the bottom surface of movable mould 2 and the top surface of cavity mould 4, the top surface of movable mould 3 and the bottom surface of cavity mould 4 all form the changeover portion formation space, pass cavity mould 4 with the blank and carry out the material loading, make the both ends of blank be located respectively in cavity 5 and lower cavity 6, then go up movable mould 2 and lower movable mould 3 all be close to cavity mould 4 and remove the compound die, thereby forge the extrusion to the blank, can form the changeover portion in two changeover portion deformation in the changeover portion formation space after the extrusion, thereby two changeover portion just can go out two changeover portion on the flange dish, production efficiency has been improved.

In some embodiments, a mandrel 7 is arranged in the upper die cavity 5, the mandrel 7 and the upper moving die 2 are coaxially arranged, a mandrel hole 8 for the mandrel 7 to pass through is formed in the lower moving die 3 in a penetrating manner, the diameter of the mandrel 7 is adapted to the inner diameter of a blank, the blank cannot be deformed inwards when being extruded through the mandrel 7, only two transition sections can be deformed into space to form the transition sections, and smooth forging of the transition flange is ensured.

In some embodiments, the mounting hole 9 is formed in the upper moving die 2 in a penetrating manner, the mounting hole 9 and the upper moving die 2 are coaxially arranged, the mounting ring 10 is fixed at the top of the mandrel 7, the mounting ring 10 is adapted in the mounting hole 9, the axial length of the mounting ring 10 is equal to that of the mounting hole 9, the first flange 11 is fixed at the top of the mounting ring 10, the diameter of the first flange 11 is larger than that of the mounting hole 9, the first flange 11 is connected to the top of the upper moving die 2 through bolts, the corresponding mandrel 7 can be replaced according to the inner diameter of a blank, the outer wall of the mandrel 7 can be contacted with the inner wall of the blank, the blank cannot be deformed inwards during forging, the diameter of the mounting hole 9 is larger than that of the mandrel 7, the mandrel 7 can penetrate into the upper die cavity 5 from the top of the mounting hole 9, the mounting ring 10 is adapted in the mounting hole 9, the mandrel 7 is mounted on the upper moving die 2 through the first flange 11, the mandrel 7 can be detachably mounted, and the mandrel 7 with different sizes is convenient to replace.

In some embodiments, the lower moving die 3 includes a hollow lower die 12 and a mandrel base 13, an annular base 14 is fixed at the bottom of the hollow lower die 12, the mandrel base 13 is disposed in the hollow lower die 12 and contacts the annular base 14, the mandrel hole 8 is formed on the mandrel base 13, the inner diameter of the mandrel hole 8 is equal to the diameter of the mandrel 7, the outer wall of the mandrel base 13 contacts the inner wall of the hollow lower die 12, when the mandrel 7 is replaced, the mandrel base 13 is correspondingly replaced, so that the mandrel hole 8 on the mandrel base 13 matches the size of the mandrel 7, and because the mandrel base 13 is stressed downwards during forging, the mandrel base 13 can be directly located in the lower die cavity 6 without adopting a connecting structure, and the installation and the disassembly are convenient.

In some embodiments, a connecting frame 15 is fixed on the top of the upper moving die 2, the connecting frame 15 is -shaped, the top of the connecting frame 15 is connected with an upper punching machine head 16, the bottom of the lower moving die 3 is connected with a lower punching mechanism 17, the upper moving die 2 is driven to move by the upper punching machine head 16, the lower moving die 3 is driven to move by the lower punching mechanism 17, and the arrangement of the connecting frame 15 provides a mounting and dismounting space for the mandrel 7, so that the mandrel 7 can be replaced conveniently.

Further, the second flange 18 is fixedly sleeved on the hollow die 4, the second flange 18 is connected with the workbench 1 through bolts, the hollow die 4 is mounted on the workbench 1 through the second flange 18 and is convenient to detach, so that the hollow die 4, the upper moving die 2 and the lower moving die 3 can be correspondingly replaced according to the size of a blank, and the blank can be forged to form a transition flange.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in 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; and those of ordinary skill in the art will appreciate that the benefits achieved by the present utility model are merely better than those achieved by the current embodiments of the prior art in certain circumstances and are not intended to be the most excellent uses directly in the industry.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. The utility model provides a transition flange forging device, its characterized in that, includes workstation (1), goes up movable mould (2) and lower movable mould (3), fixed cavity mould (4) of wearing to be equipped with on workstation (1), go up movable mould (2) and lower movable mould (3) respectively be located directly over cavity mould (4) and under, go up movable mould (2) with lower movable mould (3) are all along the axial displacement of cavity mould (4), go up movable mould (2)'s bottom and seted up last die cavity (5), lower cavity (6) have been seted up at the top of lower movable mould (3), the bottom surface of last movable mould (2) and the top surface of cavity mould (4) the top surface of lower movable mould (3) and the bottom surface of cavity mould (4) all form the changeover portion and form the space.

2. A transitional flange forging apparatus according to claim 1, characterized in that a mandrel (7) is arranged in the upper die cavity (5), the mandrel (7) is coaxially arranged with the upper moving die (2), and a mandrel hole (8) through which the mandrel (7) passes is formed in the lower moving die (3).

3. The transitional flange forging device according to claim 2, wherein a mounting hole (9) is formed in the upper moving die (2) in a penetrating manner, the mounting hole (9) and the upper moving die (2) are coaxially arranged, a mounting ring (10) is fixed at the top of the mandrel (7), the mounting ring (10) is adapted in the mounting hole (9), and the axial length of the mounting ring (10) is equal to that of the mounting hole (9).

4. A transitional flange forging apparatus according to claim 3, characterized in that a first flange (11) is fixed to the top of the mounting ring (10), the diameter of the first flange (11) being larger than the diameter of the mounting hole (9), the first flange (11) being bolted to the top of the upper moving die (2).

5. The transitional flange forging device according to claim 4, wherein the lower moving die (3) comprises a hollow lower die (12) and a mandrel base (13), an annular base (14) is fixed at the bottom of the hollow lower die (12), the mandrel base (13) is arranged in the hollow lower die (12) and contacts the annular base (14), the mandrel hole (8) is formed in the mandrel base (13), the inner diameter of the mandrel hole (8) is equal to the diameter of the mandrel (7), and the outer wall of the mandrel base (13) contacts the inner wall of the hollow lower die (12).

6. A transitional flange forging apparatus according to claim 1, characterized in that a connecting frame (15) is fixed at the top of the upper moving die (2), the connecting frame (15) is shaped like a letter , the top of the connecting frame (15) is connected with an upper punch head (16), and the bottom of the lower moving die (3) is connected with a lower punch mechanism (17).

7. A transitional flange forging apparatus according to claim 1, characterized in that a second flange (18) is fixedly sleeved on the hollow mould (4), and the second flange (18) is connected with the workbench (1) through bolts.