CN112547940A

CN112547940A - Composite material die pressing product forming tool

Info

Publication number: CN112547940A
Application number: CN202010870811.2A
Authority: CN
Inventors: 朱向松; 钟宏伟; 周俊; 陈钧; 徐凌波; 熊华强; 彭冲; 余辉; 彭思潇
Original assignee: Changhe Aircraft Industries Group Co Ltd
Current assignee: Changhe Aircraft Industries Group Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-03-26

Abstract

The invention belongs to the field of composite materials, and relates to a forming tool for a die-pressed product, which can be used for die pressing of the applied die-pressed product. The forming tool comprises an upper module component, a lower module component, a frame 7, a supporting block 8, a bottom plate 9 and a stop block 10. The invention is easy to demould and has high product forming precision.

Description

Composite material die pressing product forming tool

Technical Field

The invention belongs to the field of composite materials, and particularly relates to a forming tool for a die-pressed product.

Background

The composite material molded product has the advantages of small product size, complex appearance, thin wall and tip part, easy damage, and corresponding precision requirement (generally within +/-0.1 mm) for all the appearances. Some products have related positive difference and negative difference requirements on corresponding assembly surfaces and holes, and after general production, a large amount of subsequent work is required on the products to ensure the qualified appearance of the products, so that corresponding requirements are provided for the design and manufacture of a die.

The profile of the existing mould pressing piece is at an angle of 178 degrees front and back, the mould pressing product comprises a left lining and a right lining which are 4, the two ends of each lining protrude out of the upper surface and the lower surface of the mould pressing product, namely the height of each lining is higher than that of a girder belt of the product, and the axes of the two left linings and the axes of the two right linings form a certain angle. The mould pressing product with the structure type brings great difficulty to demoulding, so the invention provides a forming tool for the composite material mould pressing product.

Disclosure of Invention

The purpose of the invention is as follows: the utility model provides a combined material moulded product takes shape frock can carry out the mould pressing to the moulded product who uses in the background art.

The technical scheme of the invention is as follows: the forming tool comprises an upper module component, a lower module component, a frame 7, a supporting block 8, a bottom plate 9 and a stop block 10;

the upper module assembly is arranged in the frame 7, and the frame 7 is used for clamping and fixing the upper module assembly; the bottom of the upper module component is provided with a cavity matched with the upper half part of the product; the supporting blocks 8 are arranged on the periphery of the bottom plate 9 and used for supporting the frame 7;

the lower module component is positioned at the top of the bottom plate 9; the top of the lower module component is provided with a cavity matched with the lower half part of a product; a stop block 10 is arranged on one side of the upper surface of the lower module component;

the cavity of the upper module assembly, the side of the stop block 10 and the cavity of the lower module assembly form a cavity for accommodating a composite material molded product.

Furthermore, avoidance holes are formed in the upper module component and the lower module component and matched with bushings on products, and protruding portions of the bushings on the products penetrate through the avoidance holes.

Furthermore, a positioning pin 11 is arranged on the supporting block 8; the frame 7 is positioned by positioning pins 11.

Further, the bushing 12 is fixedly connected with the supporting block 8; the positioning pin 11 is inserted into the bushing 12 to prevent the positioning pin from being deformed.

Further, a bush is arranged on the upper surface of the block 10; the bushing on the stop 10 cooperates with the pin on the upper module assembly for positioning the upper module assembly.

Further, the supporting block 8 and the lower module assembly are fixedly connected with the bottom plate 9 through screws.

Further, the upper module assembly comprises a first upper module 1, a second upper module 2 and a third upper module 3; the first upper module 1, the second upper module 2 and the third upper module 3 are sequentially arranged in parallel in the frame 7; the lower surfaces of the first upper module 1 and the third upper module 3 are provided with grooves matched with the upper surface of a product, and the lower surface of the second upper module 2 is provided with an inclination angle matched with the upper surface of the product.

Further, the lower module assembly comprises a first lower module 4, a second lower module 5 and a third lower module 6; the upper surfaces of the first lower module 4 and the third lower module 6 are provided with grooves matched with the lower surfaces of products, and the upper surface of the second lower module 5 is provided with an inclination angle matched with the lower surface of the product.

Further, the contact surfaces of the first upper module 1, the second upper module 2 and the third upper module 3 are parallel to the axis of the product liner; the contact surfaces between the first lower die block 4, the second lower die block 5 and the third lower die block 6 are parallel to the axis of the product liner.

The invention has the technical effects that: the invention provides a composite material die pressing product forming tool which is easy to demould and can accurately die press a die pressing product applied by the invention; the upper module component and the lower module component are provided with molded surfaces matched with the surfaces of final products, so that the product forming precision is improved, and the products are guaranteed to have qualified appearances.

Drawings

FIG. 1 is a top view of a molded product;

FIG. 2 is a cross-sectional view A-A;

FIG. 3 is a schematic view of the molding tool after assembly;

FIG. 4 is a schematic view of the lower module assembly after installation;

FIG. 5 is a schematic view of the upper module assembly.

Detailed Description

Example 1

Fig. 1 is a plan view of a molded product, fig. 2 is a sectional view a-a, and as shown in fig. 1 and 2, the molded product of this embodiment has a front and rear profile at an angle of 178 °, and includes 4 left and right bushings, both ends of which protrude from upper and lower surfaces of the molded product. Wherein, the axial direction of the left bush 20 and the right bush 21 forms a certain included angle, and the included angle is theta.

Fig. 3 is a schematic diagram of the assembled molding tool, fig. 4 is a schematic diagram of the assembled lower module assembly, and fig. 5 is a schematic diagram of the assembled upper module assembly, and with reference to fig. 3, fig. 4, and fig. 5, this embodiment provides a composite material molded product molding tool, and the molding tool includes an upper module assembly, a lower module assembly, a frame 7, a support block 8, a bottom plate 9, and a stopper 10.

Furthermore, a positioning pin 11 is arranged on the supporting block 8; the frame 7 is positioned by positioning pins 11. The bushing 12 is fixedly connected with the supporting block 8; the positioning pin 11 is inserted into the bushing 12 to prevent the positioning pin from being deformed. In the embodiment, the frame 7 is positioned by the positioning pin 11, the die-pressed product expands from inside to outside to generate a larger force in the heating and curing process of the hot press, and the bushing 11 is embedded in the position of the positioning pin hole to prevent the deformation of the positioning pin.

The lower module assembly comprises a first lower module 4, a second lower module 5 and a third lower module 6; the upper surfaces of the first lower module 4 and the third lower module 6 are provided with grooves matched with the lower surfaces of products, and the upper surface of the second lower module 5 is provided with an inclination angle matched with the lower surface of the product. The first lower module 4, the second lower module 5 and the third lower module 6 are fixed to the bottom plate 9 by positioning pins and screws.

In the embodiment, the contact surfaces of the first upper module 1, the second upper module 2 and the third upper module 3 are parallel to the axis of the product bushing; the contact surfaces between the first lower die block 4, the second lower die block 5 and the third lower die block 6 are parallel to the axis of the product liner. The contact surface between the modules is parallel to the axis of the bushing, so that the demolding is easy.

As shown in fig. 3, in the present embodiment, the contact portions between the first upper module 1, the second upper module 2, and the third upper module 3 form an avoidance hole at the upper end of the bushing; the parts of the first lower module 4, the second lower module 5 and the third lower module 6 which are contacted form a yielding hole at the lower end of the bushing.

Claims

1. The forming tool for the composite material die-pressed product is characterized by comprising an upper module component, a lower module component, a frame (7), a supporting block (8), a bottom plate (9) and a stop block (10);

the upper module component is arranged in the frame (7), and the frame (7) is used for clamping and fixing the upper module component; the bottom of the upper module component is provided with a cavity matched with the upper half part of the product; the supporting blocks (8) are arranged on the periphery of the bottom plate (9) and used for supporting the frame (7);

the lower module component is positioned at the top of the bottom plate (9); the top of the lower module component is provided with a cavity matched with the lower half part of a product; a stop block (10) is arranged on one side of the upper surface of the lower module component;

the cavity of the upper module component, the side surface of the stop block (10) and the cavity of the lower module component form a cavity for accommodating a composite material molded product.

2. The forming tool according to claim 1, wherein the upper module assembly and the lower module assembly are provided with avoidance holes, the avoidance holes are matched with bushings on products, and the protruding parts of the bushings on the products penetrate through the avoidance holes.

3. The forming tool according to claim 2, characterized in that a positioning pin (11) is arranged on the supporting block (8); the frame (7) is positioned by a positioning pin (11).

4. The forming tool according to claim 3, characterized in that the bushing (12) is fixedly connected with the support block (8); the positioning pin (11) is arranged in the bushing (12) in a penetrating mode, and deformation of the positioning pin is prevented.

5. The forming tool according to claim 1, characterized in that a bush is arranged on the upper surface of the stop block (10); and the bushing on the stop block (10) is matched with the pin on the upper module component to position the upper module component.

6. The forming tool according to claim 1, wherein the supporting block (8) and the lower module assembly are fixedly connected with the bottom plate (9) through screws.

7. The forming tool according to claim 1, wherein the upper module assembly comprises a first upper module (1), a second upper module (2) and a third upper module (3); the first upper module (1), the second upper module (2) and the third upper module (3) are sequentially arranged in parallel in the frame (7); the lower surfaces of the first upper module (1) and the third upper module (3) are provided with grooves matched with the upper surface of a product, and the lower surface of the second upper module (2) is provided with an inclination angle matched with the upper surface of the product.

8. The forming tool according to claim 7, characterized in that the lower module assembly comprises a first lower module (4), a second lower module (5) and a third lower module (6); the upper surfaces of the first lower module (4) and the third lower module (6) are provided with grooves matched with the lower surface of a product, and the upper surface of the second lower module (5) is provided with an inclination angle matched with the lower surface of the product.

9. The forming tool according to claim 8, characterized in that the contact surfaces of the first upper module (1), the second upper module (2) and the third upper module (3) are parallel to the axis of the product bushing; the contact surfaces of the first lower module (4), the second lower module (5) and the third lower module (6) are parallel to the axis of the product bushing.