CN216297705U

CN216297705U - Hoop part forming tool

Info

Publication number: CN216297705U
Application number: CN202122646612.6U
Authority: CN
Inventors: 王存茂
Original assignee: Establishment Of Aviation Technology Chengdu Co ltd
Current assignee: Establishment Of Aviation Technology Chengdu Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-04-15
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses a clamp part forming tool, which comprises: the top surface of the first forming die is provided with an arc-shaped forming groove and a first forming inclined surface; the bottom end of the second forming die is provided with a forming male die and a second forming inclined plane, and the second forming die is detachably and fixedly connected with the first forming die through bolts; and the lower part of one side of the third forming die is provided with a forming cambered surface. The forming tool is simple in structure, low in cost, simple and convenient to operate in forming and processing of the large-radian hoop part and good in forming quality.

Description

Hoop part forming tool

Technical Field

The utility model relates to the technical field of clamp part forming, in particular to a clamp part forming tool.

Background

With the rapid development of the aviation industry, many sheet metal parts are encountered in the machining and production of the aero-engine. The sheet metal component needs the restraint of frock in the forming process, in the forming process should consider the forming scheme feasibility, how the analysis part is formed, how to separate with the mould after the shaping scheduling problem. The metal plate forming technology is widely applied, and the forming mode is diversified.

The radian of the arc part of the clamp-type sheet metal part shown in fig. 1 is larger than 180 degrees. The hydraulic forming technology of the sheet metal part has higher difficulty. The common bending machine is difficult to bend and form, and the special forming instrument is designed, so that the input cost is high, the special forming instrument is not suitable for production of a small number of products, the research and development time is long, and the economy is low.

The technical problems that the arc-shaped surface needs to be distributed and formed, smooth transition of the arc-shaped surface needs to be ensured, and the arc-shaped surface is easy to separate from a die after forming are solved.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a clamp part forming tool which has a simple structure, low cost, simple and convenient large-radian clamp part forming and processing operation and good forming quality.

The utility model provides a clamp part forming tool which comprises a first forming die, a second forming die and a third forming die; wherein,

the top surface of the first forming die is provided with an arc-shaped forming groove, the radian of the forming groove is less than 180 degrees, two ends in the forming groove are respectively provided with a fixing screw hole, one side of the top surface of the first forming die, which is positioned in the forming groove, is provided with a first forming inclined surface, and the first forming inclined surface is obliquely arranged downwards along the direction far away from the forming groove;

the second forming die is arranged above the first forming die, a forming male die is arranged on one side of the bottom end of the second forming die, the outer wall surface of the forming male die is arc-shaped, the radian of the arc-shaped outer wall surface of the forming male die is larger than 180 degrees, a second forming inclined surface is arranged on one side, located on the forming male die, of the bottom end of the second forming die, corresponds to the first forming inclined surface, the second forming inclined surface is downwards inclined along the direction far away from the forming male die, a through hole is formed from the top to the bottom of the second forming die, corresponds to the fixing screw hole, and the second forming die is detachably and fixedly connected with the first forming die through a bolt;

the third forming die is separately arranged on the top surface of the first forming die and located on one side, away from the first forming inclined surface, of the forming groove, a forming arc surface is arranged on the lower portion, close to one side of the forming groove, of the third forming die, and the sum of the radians of the forming arc surface and the forming groove is equal to the radian of the forming convex die.

Furthermore, supporting blocks are respectively arranged above two ends of the forming convex die on one side of the second forming die close to the third forming die, and abutting grooves are arranged on one side of the third forming die above the forming arc surface and correspond to the supporting blocks.

Further, the radian of the forming groove is not less than 150 degrees.

Further, the first forming die, the second forming die and the third forming die are made of high-strength alloy materials.

Compared with the prior art, the utility model has the beneficial effects that:

the forming tool is provided with a first forming die, a second forming die and a third forming die. When the clamp part is formed, firstly, a first forming die and a second forming die perform first extrusion forming on a plate-shaped sheet metal blank; then fixing the first forming die and the second forming die through bolts, and performing secondary extrusion forming on the sheet metal blank through the third forming die; and then unloading the sheet metal blank subjected to the two-time extrusion forming, and cutting the sheet metal blank by using cutting equipment to form the clamp part shown in figure 1. Utilize the shaping frock of this application, through twice extrusion processing accomplished the shaping that the clamp part radian is greater than 180 degrees parts. The tooling has the advantages of simple structure, low cost, simple and convenient molding and processing operation of the large-radian hoop part and good molding quality.

It should be understood that what is described in this summary section is not intended to limit key or critical features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model.

Other features of the present invention will become apparent from the following description.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a schematic view of a clamp component;

FIG. 2 is a schematic structural view of a clamp part forming tool;

FIG. 3 is a schematic structural diagram of a clamp part forming tool in a first forming state;

fig. 4 is a schematic structural diagram of the clamp part forming tool in a second forming state.

Reference numbers in the figures: 1. sheet metal blanks; 2. a first molding die; 3. a second molding die; 4. a third forming die; 5. a bolt;

11. a clamp part;

21. forming a groove; 22. fixing screw holes; 23. a first forming bevel;

31. forming a male die; 32. a second forming bevel; 33. a through hole; 34. a support block;

41. forming a cambered surface 42 and a butting groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 4, an embodiment of the present invention provides a clamp part forming tool, including a first forming mold 2, a second forming mold 3, and a third forming mold 4; wherein,

the top surface of the first forming die 2 is provided with an arc-shaped forming groove 21, the radian of the forming groove 21 is less than 180 degrees, two ends in the forming groove 21 are respectively provided with a fixing screw hole 22, one side of the top surface of the first forming die 2, which is positioned in the forming groove 21, is provided with a first forming inclined surface 23, and the first forming inclined surface 23 is arranged in a downward inclination manner along the direction far away from the forming groove 21;

the second molding die 3 is arranged above the first molding die 2, one side of the bottom end of the second molding die 3 is provided with a molding male die 31, the outer wall surface of the molding male die 31 is arc-shaped, the radian of the outer wall surface of the molding male die 31 is larger than 180 degrees, one side, located at the molding male die 31, of the bottom end of the second molding die 3 is provided with a second molding inclined surface 32 corresponding to the first molding inclined surface 23, the second molding inclined surface 32 is arranged in a downward inclination mode along the direction far away from the molding male die 31, a through hole 33 is formed from the top to the bottom of the second molding die 3 corresponding to the fixing screw hole 22, and the second molding die 3 is detachably and fixedly connected with the first molding die 2 through a bolt 5;

and the third forming die 4 is separately arranged on the top surface of the first forming die 2 and is positioned on one side of the forming groove 22 far away from the first forming inclined surface 23, the lower part of one side of the third forming die 4 close to the forming groove 21 is provided with a forming arc surface 41, and the sum of the radians of the forming arc surface 41 and the forming groove 21 is equal to the radian of the forming convex die 31.

In this embodiment, the forming tool of the present application is composed of a first forming die 2, a second forming die 3 and a third forming die 4, and through the cooperation between the forming dies, the sheet metal blank can be bent and formed by more than 180 degrees. And (3) cutting the bent sheet metal blank to manufacture the hoop part shown in figure 1.

During specific operation, the first forming die 2 is firstly placed on a workbench of a hydraulic press, clamping and fixing are carried out through a clamp, and then the sheet metal blank 1 is placed on the top of the first forming die 2. Then clamping and fixing the second forming die 3 by a hydraulic press and pressing down, embedding the lower part of the forming convex die 31 into the forming groove 21, and carrying out first extrusion forming on the sheet metal blank 1; the first forming inclined surface 23 and the second forming inclined surface 32 are matched to restrain the horizontal part of the sheet metal blank 1.

And then controlling the hydraulic press to loosen the second forming die 3, fixing the second forming die 3 and the first forming die 2 through the bolts 5, and fixing the first forming die 2 and the second forming die 3 on the workbench again after rotating for 90 degrees, as shown in fig. 4. And clamping and fixing the third forming die 4 by a hydraulic machine, pressing down the third forming die against the side surface of the first forming die 2, and performing secondary extrusion forming on the sheet metal blank 1 by matching the forming cambered surface 41 with the forming male die 31. And (3) unloading the sheet metal blank 1 after the two-time extrusion forming, and cutting the sheet metal blank by using a cutting device to form a hoop part 11 shown in figure 1.

Utilize the shaping frock of this application, through twice extrusion processing accomplished the shaping that the clamp part radian is greater than 180 degrees parts. The tooling has the advantages of simple structure, low cost, simple and convenient molding and processing operation of the large-radian hoop part and good molding quality.

In a preferred embodiment, as shown in fig. 2, a supporting block 34 is respectively disposed on one side of the second forming die 3 close to the third forming die 4 above two ends of the forming punch 31, and a butting groove 42 is disposed on one side of the third forming die 4 above the forming arc surface 41 and corresponding to the supporting block 34.

In this embodiment, when the second extrusion molding of the sheet metal blank 1 is performed, an extending space is provided for the sheet metal blank 1 between the two supporting blocks 34. When the length of the sheet metal blank 1 is too long, the overlong part of the sheet metal blank extends out along the space between the two supporting blocks 34. After the second extrusion is finished, the overlong part of the sheet metal blank 1 is cut off, and the adaptability of the tool is improved.

In a preferred embodiment, the arc of the shaped groove 21 is not less than 150 degrees. The radian of the forming groove 21 is not suitable to be too small, so as to reduce the radian requirement of the forming arc surface 41 as much as possible, ensure the operation convenience of the second extrusion forming and the forming quality, and the radian of the forming groove 21 is preferably set to 160 degrees and 170 degrees.

In a preferred embodiment, the first forming die 2, the second forming die 3 and the third forming die 4 are made of high-strength alloy materials, so that the structural strength is high, the deformation is not easy to occur, the durability is good, and the tool is ensured to keep excellent forming quality all the time.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A clamp part forming tool is characterized by comprising a first forming die, a second forming die and a third forming die; wherein,

2. The clamp part forming tool according to claim 1, wherein a supporting block is respectively arranged on one side of the second forming die close to the third forming die and above two ends of the forming male die, and a supporting groove is arranged on one side of the third forming die and above the forming arc surface and corresponds to the supporting block.

3. The clamp component forming tool according to claim 2, wherein the radian of the forming groove is not less than 150 degrees.

4. The clamp component forming tool according to claim 3, wherein the first forming die, the second forming die and the third forming die are made of a high-strength alloy material.