Splicing tool for radome sandwich layer aramid paper honeycomb

Abstract

A radome sandwich layer aramid paper honeycomb splicing tool comprises a base, a positioning boss is arranged in the center of the upper end of the base, the top face of the positioning boss is used for containing an aramid paper honeycomb top plate, the periphery of the positioning boss is sleeved with a limiting base plate and a positioning frame, and the limiting base plate is located at the bottom of the positioning frame. An accommodating cavity is formed between the positioning frame and the positioning boss; an aramid paper honeycomb side wall is inserted into the containing cavity, a pressing plate is arranged above the aramid paper honeycomb top plate, and the pressing plate is connected with the base through a connecting piece, so that the aramid paper honeycomb top plate and the aramid paper honeycomb side wall are positioned on the base. The utility model aims to overcome the defects in the prior art.

Description

Technical Field

[0001] This utility model belongs to the field of aramid paper honeycomb splicing technology for radome sandwich layer, and particularly relates to a splicing tooling for aramid paper honeycomb splicing of radome sandwich layer. Background Technology

[0002] The main function of a radar radome is to protect the antenna system inside from external damage and destruction. The radar radome has a sandwich layer, which includes a top plate and side walls made of aramid paper honeycomb. After the top plate and side walls are spliced ​​together with adhesive film, they need to be heated in an oven to make the top plate and side walls firmly bonded. Because the aramid paper honeycomb is soft, it is easy to twist and deform during splicing, making the splicing of the sandwich layer difficult. However, after heating in the oven, the aramid paper honeycomb is even more prone to twisting and deformation due to the increased temperature, resulting in a low yield and high production cost of the aramid paper honeycomb sandwich layer. Summary of the Invention

[0003] This invention provides a tooling for splicing aramid paper honeycomb in the sandwich layer of an antenna radome, in order to overcome the shortcomings of the prior art.

[0004] The technical solution adopted by this utility model is: an aramid paper honeycomb splicing fixture for radome sandwich layer, including a base, a positioning boss at the center of the upper end of the base, the top surface of the positioning boss is used to place the aramid paper honeycomb top plate, a limiting pad and a positioning frame are fitted around the positioning boss, and the limiting pad is located at the bottom of the positioning frame, so that the positioning frame and the positioning boss form a receiving cavity; the receiving cavity is used to insert the aramid paper honeycomb sidewall, and a pressure plate is provided above the aramid paper honeycomb top plate, and the pressure plate is connected to the base through a connector, thereby positioning the aramid paper honeycomb top plate and the aramid paper honeycomb sidewall on the base.

[0005] The base is provided with a lifting groove, and the lifting groove is evenly distributed around the positioning boss and located below the limiting pad.

[0006] The limiting pad has a ring structure and a shoulder on its inner circumference.

[0007] The positioning frame has a ring structure, and its top is slightly lower than the top surface of the positioning boss.

[0008] The positioning boss has an inverted conical structure that is smaller at the top and larger at the bottom.

[0009] The positioning frame includes several positioning plates 1 and 2, and the ends of positioning plates 1 and 2 are connected by mortise and tenon joints.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention uses positioning bosses and positioning frames on the base to limit the positioning of the aramid paper honeycomb top plate and the aramid paper honeycomb side wall, overcoming the twisting and deformation during splicing and reducing the difficulty of splicing the sandwich layer; by using pressure plates to fix the aramid paper honeycomb sandwich layer in the splicing fixture, it effectively reduces the twisting and deformation of the aramid paper honeycomb sandwich layer when heated in the oven, improves the yield of the aramid paper honeycomb sandwich layer and reduces the cost. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0014] Figure 3 yes Figure 1 Enlarged view of a section at point B in the middle;

[0015] Figure 4 yes Figure 1 Enlarged view of a portion of point A in the middle;

[0016] Figure 5 yes Figure 1 Enlarged view of a section at point C; Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in detail with reference to specific embodiments.

[0018] A splicing fixture for aramid paper honeycomb sandwich layer of radome includes a base 1. The base 1 has a positioning boss 1-1 at the center of its upper end. The top surface of the positioning boss 1-1 is used to place the aramid paper honeycomb top plate 6. The positioning boss 1-1 is surrounded by a limiting pad 2 and a positioning frame 3. The limiting pad 2 is located at the bottom of the positioning frame 3, and a receiving cavity 8 is formed between the positioning frame 3 and the positioning boss 1-1. The receiving cavity 8 is used to insert the aramid paper honeycomb side wall 7. A pressure plate 4 is provided above the aramid paper honeycomb top plate 6, and the pressure plate 4 is connected to the base 1 through a connector 5, thereby positioning the aramid paper honeycomb top plate 6 and the aramid paper honeycomb side wall 7 on the base 1.

[0019] In one embodiment, in order to facilitate the removal of the spliced ​​aramid paper honeycomb sandwich layer, the base 1 is provided with a lifting groove 1-2, and the lifting groove 1-2 is evenly distributed around the positioning boss 1-1 and located below the limiting pad 2.

[0020] In one embodiment, for easy positioning during construction, the limiting pad 2 has an annular structure and a shoulder 2-1 around its inner circumference; the aramid paper honeycomb sidewall 7 is placed vertically on the shoulder 2-1, and the width of the shoulder 2-1 is adapted to the thickness of the aramid paper honeycomb sidewall 7.

[0021] In one embodiment, the positioning frame 3 has a ring structure, and its top is slightly lower than the top surface of the positioning boss 1-1, which is beneficial for splicing the aramid paper honeycomb top plate 6 and the aramid paper honeycomb sidewall 7 and reducing the amount of loose bonding.

[0022] In one embodiment, in order to facilitate the separation of the spliced ​​aramid paper honeycomb from the positioning boss 1-1, the positioning boss 1-1 has an inverted conical structure with a smaller upper end and a larger lower end, which facilitates the removal of the spliced ​​sandwich layer.

[0023] In one embodiment, for ease of installation, the positioning frame 3 includes several positioning plates 3-1 and 3-2, and the ends of the positioning plates 3-1 and 3-2 are connected by a mortise and tenon structure.

[0024] In practical use, the base 1 is placed on the platform, and then the limiting pad 2 is installed on the base, with the limiting pad 2 positioned around the positioning boss 1-1. Next, the four cut aramid paper honeycomb sidewalls 7 are vertically inserted into the shoulder 2-1. Adhesive film is then applied to the connection points of the aramid paper honeycomb sidewalls 7. The positioning frame 3 is installed around the periphery of the aramid paper honeycomb sidewalls 7 to position them. Adhesive film is applied around the top circumference of the cut aramid paper honeycomb sidewalls 7. The aramid paper honeycomb top plate 6 is placed on the positioning boss 1-1, and its outer periphery is bonded to the aramid paper honeycomb sidewalls 7, thus making the aramid paper honeycomb sidewalls... The wall 7 and the aramid paper honeycomb top plate 6 form a sandwich layer. Then, the pressure plate 4 is placed on the aramid paper honeycomb top plate 6. The connector 5 passes through the pressure plate 4, positioning frame 3 and limiting pad 2 from bottom to bottom and is threaded to the base 1. The splicing fixture and the sandwich layer are placed in an oven and heated for a certain period of time and then cooled to room temperature. The connector, pressure plate and positioning frame 3 are removed. Then, the limiting pad 2 is pried open through the lifting groove 1-2 to separate the aramid paper honeycomb sandwich layer from the positioning boss 1-1. Finally, the finished aramid paper honeycomb sandwich layer is removed from the positioning boss 1-1. The aramid paper honeycomb sandwich layer is assembled.

[0025] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Therefore, all equivalent variations made based on the content described in the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A tooling for splicing aramid paper honeycomb sandwich layers of an antenna radome, characterized in that: The system includes a base (1), which has a positioning boss (1-1) at the center of its upper end. The top surface of the positioning boss (1-1) is used to place the aramid paper honeycomb top plate (6). The positioning boss (1-1) is surrounded by a limiting pad (2) and a positioning frame (3). The limiting pad (2) is located at the bottom of the positioning frame (3), and a receiving cavity (8) is formed between the positioning frame (3) and the positioning boss (1-1). The receiving cavity (8) is used to insert the aramid paper honeycomb sidewall (7). A pressure plate (4) is provided above the aramid paper honeycomb top plate (6), and the pressure plate (4) is connected to the base (1) through a connector (5), thereby positioning the aramid paper honeycomb top plate (6) and the aramid paper honeycomb sidewall (7) on the base (1).

2. The aramid paper honeycomb splicing fixture for the radome sandwich layer according to claim 1, characterized in that: The base (1) is provided with a lifting groove (1-2), and the lifting groove (1-2) is evenly distributed around the positioning boss (1-1) and located below the limiting pad (2).

3. The aramid paper honeycomb splicing fixture for the radome sandwich layer according to claim 1, characterized in that: The limiting pad (2) has a ring structure and a shoulder (2-1) around its inner side.

4. The aramid paper honeycomb splicing fixture for the radome sandwich layer according to claim 1, characterized in that: The positioning frame (3) has a ring structure, and its top is slightly lower than the top surface of the positioning boss (1-1).

5. The aramid paper honeycomb splicing fixture for the radome sandwich layer according to claim 1, characterized in that: The positioning boss (1-1) has an inverted cone shape with a smaller upper end and a larger lower end.

6. The aramid paper honeycomb splicing fixture for the radome sandwich layer according to claim 4, characterized in that: The positioning frame (3) includes several positioning plates 1 (3-1) and positioning plates 2 (3-2), and the ends of positioning plates 1 (3-1) and positioning plates 2 (3-2) are connected by a mortise and tenon structure.

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