Composite support with C-shaped section with negative angle and forming die of composite support

Abstract

The utility model discloses a composite material support with a C-shaped cross section and a negative angle and a forming die thereof, the composite material support comprises a body with a C-shaped cross section, the body comprises an upper plate, a middle plate and a lower plate, one edge of the upper plate is connected with the upper edge of the middle plate into a whole, the lower edge of the middle plate is connected with one edge of the lower plate into a whole, and the lower plate is connected with the lower plate into a whole. A C-shaped structure is defined by the upper plate, the middle plate and the lower plate, an integrated rectangular frame is defined after a C-shaped opening of the body faces outwards, the upper plate on the two opposite edges of the rectangular frame is of a negative angle structure, namely the upper plate inclines outwards and downwards, so that the included angle between the upper plate and the middle plate is an acute angle, and the lower plate and the middle plate form a right angle. The upper plates and the middle plates of the other two opposite frames of the rectangular frame are perpendicular, and the lower plates and the middle plates are perpendicular. The composite material support is low in machining cost and high in specific strength and specific stiffness.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of composite material support relates to a C section with negative angle composite material support and forming die. BACKGROUND

[0002] Composite material support involves various industries and applications, including aerospace, automotive, medical devices, construction, etc. Composite materials are usually composed of two or more materials with different properties to obtain better performance than single materials, such as higher strength-to-weight ratio, corrosion resistance and design flexibility. Some parts in the prior art need to use composite material support with negative angle, and the original support cannot meet the use requirement.

[0003] The disadvantages of the prior art in the processing method of metal support are:

[0004] 1. The original metal material support uses five-axis numerical control processing, and the outer surface needs to be processed at a high cost; 2. Insufficient strength and toughness; 3. Not resistant to corrosion; 4. Insufficient design freedom, which is not conducive to optimizing the structure performance. SUMMARY

[0005] Therefore, the utility model aims at providing a C section with negative angle composite material support and forming die which can solve the above problems.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A C section with negative angle composite material support, comprising a body with a C section, the body comprising an upper plate, a middle plate and a lower plate, one edge of the upper plate is connected with the upper edge of the middle plate as a whole, the lower edge of the middle plate is connected with one edge of the lower plate as a whole, the upper plate, the middle plate and the lower plate form a C structure, the C type port of the body faces outward to form a integral rectangular frame, the upper plate of the opposite two edges of the rectangular frame is made into a negative angle structure, that is, the upper plate is inclined outward and downward, so that the included angle between the upper plate and the middle plate is an acute angle, the lower plate and the middle plate form a right angle, the upper plate of the other two opposite edges of the rectangular frame and the middle plate are perpendicular, and the lower plate and the middle plate are perpendicular.

[0008] Further, the upper plate, the middle plate and the lower plate are evenly distributed with several reinforcing ribs, and the material of the body is a composite material.

[0009] The forming die of the C-shaped section composite support with negative angle comprises a core mold and a bottom plate, a counterbore for placing the core mold is arranged on the middle part of the upper end surface of the bottom plate, the core mold is used as the internal support of the composite support, the bottom plate on the side of the core mold is sequentially sleeved with a side pressing plate A, a side pressing plate B and an upper pressing plate from bottom to top, the side pressing plate B and the side pressing plate A are assembled to press the core mold layer, the horizontal part of the core mold layer is located between the side pressing plate A and the bottom plate, the vertical part of the core mold layer is located between the side pressing plate A, the side pressing plate B and the core mold, the space between the upper pressing plate and the side pressing plate B is a side pressing plate layer, and the core mold layer and the side pressing plate layer are placed to form the shape of the composite support before forming.

[0010] The side pressing plate A is divided into several sections which are spliced into the side pressing plate A in the form of a rotary body.

[0011] Further, the outer side of the lower end of each section of the side pressing plate A is fixed with a guide block, and the corresponding bottom plate is provided with a counterbore matched with the guide block.

[0012] Further, the part of the side pressing plate A extending to the bottom plate is provided with a horizontally arranged boss along the inner circle thereof, the lower end surface of the boss is provided with a third step along the inner edge thereof, and the gap between the third step and the bottom plate is used for accommodating the horizontal part of the core mold layer.

[0013] Further, the side pressing plate B is placed on the boss, the side pressing plate B is a rotary body, the upper end surface of the boss is provided with a fourth step matched with the side pressing plate B, the inner wall of the side pressing plate B is flush with the inner wall of the boss after the side pressing plate B abuts against the fourth step, and the space between the side pressing plate B and the boss and the core mold is used for accommodating the vertical part of the core mold layer.

[0014] Further, the outer edge of the upper end surface of the core mold is provided with a fifth step used for positioning and limiting the upper pressing plate, and the inner wall of the upper pressing plate is provided with a step corresponding to the fifth step.

[0015] Further, the inner wall of the side pressing plate A above the boss is a slope inclined outward from bottom to top, and the outer wall of the corresponding side pressing plate B is a slope corresponding to the slope of the side pressing plate A.

[0016] Further, the upper end surface of the side pressing plate B is a slope or a horizontal surface, the upper end surface of the side pressing plate B is a corresponding slope at the position with negative angle on the composite support, and the upper end surface of the side pressing plate B is a horizontal surface at the position without negative angle on the composite support.

[0017] Further, the middle part of the core mold is fixed with a lifting ring facilitating hoisting.

[0018] The beneficial effects of the utility model lie in:

[0019] 1. The metal material support in the prior art cannot meet the wave transmission performance, has large weight and insufficient radar stealth performance.

[0020] 2, the machining cost of the composite support is low;

[0021] 3, the composite support has high specific strength and specific stiffness;

[0022] 4, the composite support has better corrosion resistance and fatigue resistance, prolongs the service life of the product, and reduces the maintenance cost;

[0023] 5, the composite support has high design freedom, and can be designed according to the stress direction, which is beneficial to optimizing the structural performance. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings constituting a part of the present application are used to provide further understanding of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0025] Figure 1 FIG. 1 is a structural schematic view of a C-section composite support with a negative angle according to an embodiment of the present application;

[0026] Figure 2 FIG. 2 is a sectional view of a forming die of the C-section composite support with a negative angle according to an embodiment of the present application;

[0027] Figure 3 FIG. 3 is a sectional view of the forming die of the C-section composite support with a negative angle according to an embodiment of the present application, which has a lifting ring;

[0028] Figure 4 FIG. 4 is a perspective view of the forming die of the C-section composite support with a negative angle according to an embodiment of the present application;

[0029] Figure 5 FIG. 5 is a structural schematic view of a C-section layer according to an embodiment of the present application.

[0030] Explanation of reference signs:

[0031] 1, the body; 11, the upper plate; 12, the middle plate; 13, the lower plate; 14, the C-section; 15, the negative angle; 16, the reinforcing rib; 2, the core mold; 21, the lifting ring; 22, the first step; 23, the fifth step; 3, the bottom plate; 4, the side pressing plate A; 41, the second step; 42, the boss; 421, the third step; 422, the fourth step; 5, the side pressing plate B; 6, the upper pressing plate; 7, the core mold layer; 8, the side pressing plate layer; 9, the guide block. DETAILED DESCRIPTION

[0032] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0033] In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0034] In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0035] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0036] As shown in the figure, a C-shaped cross-section composite support with negative angle, including the body 1 of C-shaped cross-section 14, the body 1 includes upper plate 11, middle plate 12 and lower plate 13, one side of upper plate 11 is connected with the upper edge of middle plate 12 integrally, the lower edge of middle plate 12 is connected with one side of lower plate 13 integrally, and upper plate 11, middle plate 12 and lower plate 13 enclose C-shaped structure. A plurality of reinforcing ribs 16 are evenly distributed between upper plate 11, middle plate 12 and lower plate 13. The C-shaped mouth of body 1 is outward, and then encloses an integral rectangular frame, the upper plate 11 of the opposite two edges of rectangular frame is made into negative angle 15 structure, that is, the upper plate 11 is outward and downward inclined, so that the included angle between upper plate 11 and middle plate 12 is acute angle, and the included angle between lower plate 13 and middle plate 12 is right angle. The upper plate 11 of the other two opposite edges of rectangular frame is perpendicular to middle plate 12, and lower plate 13 is perpendicular to middle plate 12.

[0037] The forming die of the C-shaped section composite support with negative angle comprises a core mold 2 and a bottom plate 3, a middle part of the upper end surface of the bottom plate 3 is provided with a counterbore for placing the core mold 2, the core mold 2 is used as an internal support of the composite support, the bottom plate 3 on the side of the core mold 2 is sequentially sleeved with a side pressing plate A 4, a side pressing plate B 5 and an upper pressing plate 6 from bottom to top, the side pressing plate A 4 is a rotary body structure, the bottom plate 3 on the side of the core mold 2 is provided with a first step 22, the side pressing plate A 4 is provided with a second step 41 matched with the first step 22, the part of the side pressing plate A 4 extending to the bottom plate 3 is provided with a horizontally arranged boss 42 along the inner circle thereof, the lower end surface of the boss 42 is provided with a third step 421 along the inner edge thereof, and the gap between the third step 421 and the bottom plate 3 is used for accommodating the horizontal part of the core mold layer 7.

[0038] The side pressing plate B 5 is placed on the boss 42, the side pressing plate B 5 is a rotary body, the upper end surface of the boss 42 is provided with a fourth step 422 matched with the side pressing plate B 5, after the side pressing plate B 5 abuts on the fourth step 422, the inner wall of the side pressing plate B 5 is flush with the inner wall of the boss 42, and the space between the side pressing plate B 5 and the boss 42 and the core mold 2 is used for accommodating the vertical part of the core mold layer 7.

[0039] The upper pressing plate 6 is located above the side pressing plate B 5, the outer edge of the upper end surface of the core mold 2 is provided with a fifth step 23 for positioning and limiting the upper pressing plate 6, the upper pressing plate 6 is also a rotary body with an internal cavity, and the inner wall of the upper pressing plate 6 is provided with a step corresponding to the fifth step 23. The inner wall of the side pressing plate A 4 above the boss 42 is a slope inclined outward from bottom to top, and the outer wall of the corresponding side pressing plate B 5 is a slope corresponding to the slope of the side pressing plate A 4. The gap between the upper pressing plate 6 and the side pressing plate B 5 is used for accommodating the side pressing plate layer 8. According to the requirement, the upper end surface of the side pressing plate B 5 is a slope or a horizontal surface, the upper end surface of the side pressing plate B 5 is a corresponding slope at the position with the negative angle 15 on the composite support, and the upper end surface of the side pressing plate B 5 is a horizontal surface at the position without the negative angle 15 on the composite support.

[0040] In order to facilitate installation, the side pressing plate A 4 is divided into several segments, preferably eight segments, and the eight segments can be spliced into the side pressing plate A 4 in the form of a rotary body, and the outer side of the lower end of each segment of the side pressing plate A 4 is fixed with a guide block 9, and the corresponding bottom plate 3 is provided with a counterbore matched with the guide block 9, so that the positioning of the side pressing plate is completed by placing the guide block 9 in the counterbore.

[0041] The middle part of the core mold 2 is fixed with a lifting ring 21 facilitating hoisting.

[0042] The forming method of the utility model comprises the following steps:

[0043] S1: firstly, the core mold 2 and the bottom plate 3 are assembled, and the core mold layer 7 is laid on the core mold 2 and the bottom plate 3;

[0044] S2: side pressing plate A4 and side pressing plate B5 are assembled, side pressing plate ply 8 is laid on the upper end face of side pressing plate B5, and then side pressing plate A4 is assembled with bottom plate 3,

[0045] S3: core mold ply 7 is folded down beyond the vertical part of side pressing plate B5 to side pressing plate ply 8;

[0046] S4: assemble upper pressing plate 6, press upper pressing plate 6 to side pressing plate ply 8;

[0047] S5: cover vacuum bag, enter hot pressing tank for curing, and after tank cooling, demold according to reverse order of assembly, and product forming is completed.

[0048] The utility model discloses solve the following problems existing in prior art.

[0049] 1, the metal material support of prior art cannot satisfy the wave -transmitting performance, and the weight is bigger, and radar stealth performance is insufficient;

[0050] 2, the machining cost of composite support is relatively low;

[0051] 3, the composite support has higher specific strength, specific rigidity;

[0052] 4, the composite support has better corrosion resistance, fatigue resistance, prolongs the service life of product, and reduces maintenance cost;

[0053] 5, the design freedom of composite support is higher, can design ply according to stress direction, is favorable for optimizing structural performance.

[0054] The above only for the preferred embodiment of the utility model has been described, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A C-section, negative-angle composite stent, characterized by: The body (1) comprises a C-shaped cross section (14), the body (1) comprises an upper plate (11), a middle plate (12) and a lower plate (13), one side of the upper plate (11) is connected with the upper edge of the middle plate (12) integrally, the lower edge of the middle plate (12) is connected with one side of the lower plate (13) integrally, the upper plate (11), the middle plate (12) and the lower plate (13) form a C-shaped structure, the C-shaped opening of the body (1) is outward, and then a rectangular frame is formed integrally, the upper plate (11) of the opposite two edges of the rectangular frame is made into a negative angle (15) structure, that is, the upper plate (11) is inclined outward and downward, so that the included angle between the upper plate (11) and the middle plate (12) is an acute angle, the lower plate (13) and the middle plate (12) form a right angle, the upper plate (11) of the other two opposite edges of the rectangular frame is perpendicular to the middle plate (12), and the lower plate (13) is perpendicular to the middle plate (12).

2. The C-section, negative angled composite stent of claim 1, wherein: The material of the body (1) is a composite material, and a plurality of reinforcing ribs (16) are uniformly distributed between the upper plate (11), the middle plate (12) and the lower plate (13).

3. A forming die for a C-section, negative angled composite strut according to any one of claims 1 to 2, characterised in that: The body (1) comprises a core mold (2) and a bottom plate (3), the middle of the upper end surface of the bottom plate (3) is provided with a counterbore for placing the core mold (2), the core mold (2) is used as internal support of a composite material support, and the bottom plate (3) on the side of the core mold (2) is sequentially sleeved with a side pressing plate A (4), a side pressing plate B (5) and an upper pressing plate (6) from bottom to top, the side pressing plate B (5) and the side pressing plate A (4) are assembled to press the core mold layer (7), the horizontal part of the core mold layer (7) is located between the side pressing plate A (4) and the bottom plate (3), the vertical part of the core mold layer (7) is located between the side pressing plate A (4) and the side pressing plate B (5) and the core mold (2), the space between the upper pressing plate (6) and the side pressing plate B (5) is a side pressing plate layer (8), and the core mold layer (7) and the side pressing plate layer (8) form the shape of the composite material support before forming after being laid well; The side pressing plate A (4) is divided into a plurality of sections, and the plurality of sections are spliced into a side pressing plate A (4) in the form of a rotary body.

4. The forming die for a C-section, negative angled composite strut of claim 3, wherein: The outer side of the lower end of each section of the side pressing plate A (4) is fixed with a guide block (9), and the bottom plate (3) is provided with a counterbore matched with the guide block (9).

5. The forming die for a C-section, negative angled composite strut of claim 3, wherein: The part of the side pressing plate A (4) extending to the bottom plate (3) is provided with a horizontally arranged boss (42) along the inner circle thereof, a third step (421) is arranged on the lower end surface of the boss (42) along the inner edge thereof, and the gap between the third step (421) and the bottom plate (3) is used for accommodating the horizontal part of the core mold layer (7).

6. The forming die for a C-section, negative angled composite strut of claim 5, wherein: The side pressing plate B (5) is placed on the boss (42), the side pressing plate B (5) is a rotary body, the upper end surface of the boss (42) is provided with a fourth step (422) matched with the side pressing plate B (5), after the side pressing plate B (5) abuts against the fourth step (422), the inner wall of the side pressing plate B (5) is flush with the inner wall of the boss (42), and the space between the side pressing plate B (5) and the boss (42) and the core mold (2) is used for accommodating the vertical part of the core mold layer (7).

7. The forming die for a C-section, negative angled composite stent of claim 3, wherein: The outer edge of the upper end surface of the core mold (2) is provided with a fifth step (23) for positioning and limiting the upper pressing plate (6), and the inner wall of the upper pressing plate (6) is provided with a step corresponding to the fifth step (23).

8. The forming die for a C-section, negative angled composite stent of claim 3, wherein: The inner wall of the side pressing plate A (4) above the boss (42) is a slope inclined outward from bottom to top, and the outer wall of the corresponding side pressing plate B (5) is a slope corresponding to the slope of the side pressing plate A (4).

9. The forming die for a C-section, negative angled composite stent of claim 3, wherein: The upper end surface of the side pressing plate B (5) is a slope or a horizontal surface, and the upper end surface of the side pressing plate B (5) is a corresponding slope at the position with the negative angle (15) on the composite material support, and the upper end surface of the side pressing plate B (5) is a horizontal surface at the position without the negative angle (15) on the composite material support.

10. The forming die for a C-section, negative angled composite stent of claim 3, wherein: The core mold (2) is fixed with a lifting ring (21) for convenient lifting.

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