CN220763224U

CN220763224U - Forming tool structure

Info

Publication number: CN220763224U
Application number: CN202321886369.8U
Authority: CN
Inventors: 赵一凡; 黄荣; 张正和; 晏杨; 丁梦凯
Original assignee: Changzhou Qifu Antai Composite Technology Co ltd
Current assignee: Kotai Si Innovation Technology (Jiangsu) Co., Ltd.
Priority date: 2023-07-18
Filing date: 2023-07-18
Publication date: 2024-04-12
Anticipated expiration: 2033-07-18

Abstract

The utility model discloses a molding tooling structure, including a mold and a core block, wherein the mold has a first molding cavity, a core block fixing cavity is arranged on the mold at at least one end of the first molding cavity, the core block is fixed in the core block fixing cavity, and the core block has a second molding cavity inside, the first molding cavity and the second molding cavity have the same diameter and are tightly connected. The core block is installed in the mold and is located at the end of the first molding cavity in the mold, the second molding cavity in the core block is connected to the first molding cavity, has the same inner diameter, is aligned with each other and is tightly installed, so that the internal molding surfaces of the two are smoothly transitioned, achieving the purpose of lengthening the first molding cavity, playing the role of lengthening the pipe fitting, without changing the mold, improving work efficiency, and reducing the cost of enterprises to customize molds of various lengths.

Description

Forming tool structure

Technical Field

The utility model belongs to the technical field of mold processing, and particularly relates to a molding tool structure.

Background

With the development of composite material technology and technology, composite material circular tubular structures have become increasingly popular for use in the fields of automobiles, rail traffic and aerospace; the mold is an important ring for the molding process of the composite material parts, so that the research on the mold is focused on one of key factors for reducing cost and enhancing efficiency in engineering.

In order to ensure the quality of the appearance surface of a product, and simultaneously facilitate demolding, a composite material circular tube-shaped structure, in particular to a structure with two ends co-cured with a metal joint, is generally formed by adopting a female die combined die, and the common structure of the die is an upper half die and a lower half die and adopts a pin positioning and bolt locking mode. The die material is generally P20 die steel with higher rigidity, and the material can better meet the requirement of forming precision, but the material cost and the processing cost are higher than those of common steel, and the overall cost is higher.

In the engineering research and development stage, especially in the aerospace field, the composite material product has high iteration speed and high updating frequency of parameters such as size and the like. At the same diameter, when the tube shaft length is reduced, we can use the form of removing the material, milling the die to the existing size, but if the tube shaft length is increased, the forming surface needs to be prolonged, and the tooling needs to be remade, so that the cost is high.

Disclosure of Invention

In order to solve the technical problems in the background art, the utility model aims to provide a forming tool structure, which increases the length of a forming cavity by adding core blocks at two ends of a die and solves the problem that the die does not need to be replaced when a tube shaft needs to be lengthened.

The technical scheme for realizing the aim of the utility model is as follows: the utility model provides a shaping frock structure, includes mould and pellet, have first shaping chamber in the mould, be provided with the fixed chamber of pellet on the mould of first shaping chamber at least one end, the pellet is fixed in the fixed intracavity of pellet, the inside second shaping chamber that has of pellet, first shaping chamber with the same and closely dock of second shaping chamber diameter.

The core block is arranged in the die and positioned at the end part of the first forming cavity in the die, the second forming cavity in the core block is communicated with the first forming cavity, the inner diameters are the same, and the core block and the first forming cavity are closely arranged in alignment, so that the inner forming surfaces of the core block and the first forming cavity are smoothly transited, the purpose of lengthening the first forming cavity is achieved, the lengthening effect of a pipe fitting is achieved, the die does not need to be replaced, the working efficiency is improved, and the cost of customizing dies with various lengths for enterprises is reduced.

Further, a joint placing cavity is further arranged in the core block, and the joint placing cavity is communicated with the second molding cavity. When the two ends of the pipe fitting need to be solidified with the metal joint, the second molding cavity for extending the pipe fitting is arranged in the core block, the joint placing cavity for placing the metal joint is also arranged, and one core block plays two roles, so that the utilization rate and the versatility of the core block are improved.

Further, the inner diameter of the joint placing cavity is larger than that of the second molding cavity, when the composite material of the pipe fitting is paved and pasted, the composite material is paved and pasted to the second molding cavity and the inside of the metal joint in sequence through the first molding cavity, when the tooling is placed into a high-pressure tank for high-temperature and high-pressure molding after the paving and pasting are completed, the composite material is heated and then is outwards compressed by the pressure of a vacuum bag in the metal joint, and the metal joint is good in curing effect and more tightly connected.

Further, the die comprises an upper die and a lower die, the upper die and the lower die are fixed through bolts, the core block comprises an upper core block and a lower core block, the upper core block and the lower core block are respectively fixed on the corresponding upper die and the lower die, and the detachable split structure is convenient for fixing and maintaining the forming of the pipe fitting.

Further, one end of the core block is provided with a connecting block extending in the circumferential direction, the connecting block is provided with a bolt hole, the side wall of the die is provided with a fixing hole corresponding to the bolt hole, and the core block is fixed on the die through the cooperation of the bolt hole and the fixing hole. The connecting block extends radially to the core block, bolt holes are formed in the connecting block and correspond to the side walls of two ends of the die, and therefore the core block can be fixed on the die, and forming surfaces inside the core block are not affected.

Further, a limiting groove is formed in the joint of the core block fixing cavity and the first molding cavity, a limiting block corresponding to the limiting groove is arranged on the core block, and the limiting block is clamped in the limiting groove. When the core block is arranged in the die, the position of the core block is positioned only by clamping the limiting block in the limiting groove, so that the positioning work of the core block is not needed to be finished again, and the working efficiency is improved.

Further, the molding surfaces in the second molding cavity and the first molding cavity are the same in shape, so that the structural consistency of the lengthened part of the pipe fitting and the molding surface of the pipe fitting main body is achieved, and the problem that the structure of the pipe fitting is lengthened but not changed is solved.

Further, a positioning protrusion is arranged on the lower die, a positioning groove corresponding to the positioning protrusion is arranged on the upper die, and the positioning protrusion is abutted in the positioning groove. When the upper die and the lower die are installed, the positioning protrusions on the lower die can be assembled by only clamping the positioning protrusions into the positioning grooves, so that the assembly efficiency is improved.

By adopting the technical scheme, the utility model has the following beneficial effects: (1) Core blocks are arranged at two ends of the die to prolong the length of a forming cavity in the die, so that the problem that the die needs to be replaced due to lengthening in the production of pipe fittings is solved; (2) The first molding cavity and the joint placing cavity are arranged in the core block, so that the problem of lengthening the pipe fitting and the problem of fixing the metal joint can be solved; (3) A limiting block is arranged on the core block to play a role in rapidly installing the core block in the die; (4) A connecting block is arranged on the core block to solve the problem of fixing the core block; (5) The positioning protrusion and the positioning groove are arranged on the die, so that the problem of rapid die assembly is solved.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which

FIG. 1 is a schematic diagram of the overall structure of a forming tool in the utility model;

FIG. 2 is a schematic view of the lower die structure of the present utility model;

FIG. 3 is a schematic diagram of the upper die structure of the present utility model;

fig. 4 is a schematic diagram of a lower core block structure in the present utility model.

The reference numerals in the drawings are: 1, upper die; 2, lower die; 3, loading the core blocks; 4, lower core blocks; 6 a core block fixing cavity; 7, a first molding cavity; 8, a limit groove; 9, positioning the bulge; 10 positioning grooves; 11 fixing holes; 12 bolt holes; 13 a second molding cavity; 14 a joint placement cavity; 15 limiting blocks; 16 connection blocks.

Detailed Description

Examples:

as shown in fig. 1-4, this embodiment provides a molding tooling structure, which includes a mold and a core block, wherein a first molding cavity 7 is provided in the mold, a core block fixing cavity 6 is provided on the mold at least at one end of the first molding cavity 7, the core block is fixed in the core block fixing cavity 6, a second molding cavity 13 is provided in the core block, and the diameters of the first molding cavity 7 and the second molding cavity 13 are the same and are in tight butt joint. The core block is arranged in the die and positioned at the end part of the first forming cavity 7 in the die, the second forming cavity 13 in the core block is communicated with the first forming cavity 7, the inner diameters are the same, and the core block and the first forming cavity are mutually aligned and tightly arranged, so that the inner forming surfaces of the core block and the first forming cavity are smoothly transited, the purpose of lengthening the first forming cavity 7 is achieved, the lengthening effect of a pipe fitting is achieved, the die does not need to be replaced, the working efficiency is improved, and the cost for customizing dies with various lengths by enterprises is reduced.

As shown in fig. 2-3, a joint placing cavity 14 is further provided in the core block, and the joint placing cavity 14 is communicated with the second molding cavity 13. When the two ends of the pipe fitting are required to be solidified with the metal joint, the second molding cavity 13 for prolonging the pipe fitting is arranged in the core block, the joint placing cavity 14 for placing the metal joint is also arranged in the core block, one core block plays two roles, and the utilization rate and the versatility of the core block are improved. The inner diameter of the joint placing cavity 14 is larger than that of the second molding cavity 13, when the composite material of the pipe fitting is paved and pasted, the composite material is paved and pasted to the second molding cavity 13 and the inside of the metal joint in sequence through the first molding cavity 7, when the tooling is placed into a high-pressure tank for high-temperature high-pressure molding after the paving and pasting is heated, the composite material is outwards compressed by the pressure of a vacuum bag in the metal joint, and the metal joint is good in curing effect and more tightly connected.

Preferably, the die comprises an upper die 1 and a lower die 2, the upper die 1 and the lower die 2 are fixed through bolts, the core block comprises an upper core block 3 and a lower core block 4, the upper core block 3 and the lower core block 4 are respectively fixed on the corresponding upper die 1 and the lower die 2, and the detachable split structure is convenient for fixing and maintaining the pipe fitting in a forming mode. The lower die 2 is provided with a positioning protrusion 9, the upper die 1 is provided with a positioning groove 10 corresponding to the positioning protrusion 9, and the positioning protrusion 9 is abutted in the positioning groove 10. When the upper die 1 and the lower die 2 are installed, the positioning protrusions 9 on the lower die 2 can be assembled by only being clamped into the positioning grooves 10, so that the assembly efficiency is improved.

As shown in fig. 4, one end of the core block is provided with a connection block 16 extending in a circumferential direction, the connection block 16 is provided with a bolt hole 12, a side wall of the die is provided with a fixing hole 11 corresponding to the bolt hole 12, and the core block is fixed on the die through the cooperation of the bolt hole 12 and the fixing hole 11. The connecting block 16 extends radially to the core block, the connecting block 16 is provided with bolt holes 12, and the bolt holes 12 correspond to the side walls at two ends of the die, so that the core block can be fixed on the die, and the molding surface inside the core block is not affected.

Preferably, a limit groove 8 is arranged at the joint of the core block fixing cavity 6 and the first molding cavity 7, a limit block 15 corresponding to the limit groove 8 is arranged on the core block, and the limit block 15 is clamped in the limit groove 8. When the core block is arranged in the die, the position of the core block is positioned only by clamping the limiting block 15 in the limiting groove 8, so that the positioning work of the core block is not needed to be finished again, and the working efficiency is improved.

Preferably, the molding surfaces in the second molding cavity 13 and the first molding cavity 7 have the same shape, so as to achieve the consistency of the molding surface structure of the lengthened part of the pipe fitting and the main body of the pipe fitting, and meet the problem of lengthening but not changing the structure of the pipe fitting.

Working principle: when a longer pipe fitting needs to be molded, a core block can be placed at the end part of a mold, and the second molding cavity 13 in the core block and the first molding cavity 7 in the mold are in the same diameter and are tightly connected, so that the purpose of manufacturing the pipe fitting is achieved; meanwhile, a joint placing cavity 14 is arranged in the core block, so that the end part of the pipe fitting and the pipe fitting are convenient to integrally heat-cure; and the limiting block 15 and the limiting groove 8 are arranged, so that the core block can be conveniently and quickly installed, the die cavity of the tooling is used for paving a composite material, after the paving is finished, the die is assembled and heated, and finally, the composite material pipe is obtained through solidification molding, and the requirement on the outer wall is not high, so that the joint of the core block and the first molding die cavity 7 has no relation even if a small gap exists.

While the foregoing is directed to embodiments of the present utility model, other and further details of the utility model may be had by the present utility model, it should be understood that the foregoing description is merely illustrative of the present utility model and that no limitations are intended to the scope of the utility model, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the utility model.

Claims

1. A molding tool structure, characterized in that it comprises a mold and a core block, wherein the mold has a first molding cavity (7), a core block fixing cavity (6) is arranged on the mold at at least one end of the first molding cavity (7), the core block is fixed in the core block fixing cavity (6), and a second molding cavity (13) is provided inside the core block, and the first molding cavity (7) and the second molding cavity (13) have the same diameter and are tightly connected;

The mold comprises an upper mold (1) and a lower mold (2), wherein the upper mold (1) and the lower mold (2) are fixed by bolts, and the core block comprises an upper core block (3) and a lower core block (4), wherein the upper core block (3) and the lower core block (4) are respectively fixed on the corresponding upper mold (1) and the lower mold (2).

2. A molding tool structure according to claim 1, characterized in that a joint placement cavity (14) is also provided in the core block, and the joint placement cavity (14) is connected with the second molding cavity (13).

3. A molding tool structure according to claim 2, characterized in that the inner diameter of the joint placement cavity (14) is larger than the inner diameter of the second molding cavity (13).

4. A molding tooling structure according to claim 1, characterized in that a circumferentially extending connecting block (16) is provided at one end of the core block, a bolt hole (12) is provided on the connecting block (16), and a fixing hole (11) corresponding to the bolt hole (12) is provided on the side wall of the mold, and the core block is fixed to the mold through the cooperation of the bolt hole (12) and the fixing hole (11).

5. A molding tooling structure according to claim 1, characterized in that a limiting groove (8) is provided at the connection between the core block fixing cavity (6) and the first molding cavity (7), and a limiting block (15) corresponding to the limiting groove (8) is provided on the core block, and the limiting block (15) is clamped in the limiting groove (8).

6. A molding tool structure according to claim 1, characterized in that the molding surface in the second molding cavity (13) and the molding surface in the first molding cavity (7) have the same shape.

7. A molding tooling structure according to claim 1, characterized in that a positioning protrusion (9) is provided on the lower mold (2), and a positioning groove (10) corresponding to the positioning protrusion (9) is provided on the upper mold (1), and the positioning protrusion (9) abuts against the positioning groove (10).