Forming die for antenna housing
By designing a radome forming mold that includes a demoulding ring plate and bolts, the problem of difficult demoulding is solved, efficient demoulding and product consistency are achieved, the mold structure is simplified and costs are reduced.
Patent Information
- Application Number
- CN202422632982.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-10-30
AI Technical Summary
In the prior art, it is difficult to demould the antenna cover, which leads to reduced production efficiency and yield.
A forming mold design including a die, a demoulding ring plate and multiple demoulding bolts is adopted. The demoulding ring plate is driven by the demoulding bolts to move to separate the antenna cover and the die. The clearance holes and reference holes are combined to ensure connection stability and smooth demoulding.
The demoulding efficiency of the antenna cover is improved, the low yield rate caused by demoulding difficulties is reduced, and the consistency of the product and the simplicity of the mold structure are ensured.
Smart Images
Figure CN223432034U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of molds, in particular to a forming mold for radome. BACKGROUND
[0002] The radome is a structure that protects the antenna system from the external environment. Due to the high requirements of the radome on structure and electromagnetic performance, the manufacturing process is relatively complex, and the manufacturing precision is relatively high. At present, most of the radome products are conical structures or cylindrical structures. Figure 1 A common radome structure is shown, which includes a nearly cylindrical cover body and an annular extension at the opening end of the cover body.
[0003] At present, the radome is usually processed by a mold pressing forming process of a concave mold and a convex mold. However, due to the large adhesion of the product to the convex mold or the concave mold, there is a problem of difficult demolding, which further reduces the production efficiency and the yield of finished products.
[0004] Therefore, how to improve the demolding convenience of the radome during forming is a problem to be solved at present. CONTENT OF THE INVENTION
[0005] In order to improve the demolding efficiency and convenience of the radome product, the present application provides a forming mold for radome.
[0006] The forming mold for radome provided by the present application adopts the following technical scheme:
[0007] A forming mold for radome, comprising a concave mold, a demolding ring plate and a plurality of demolding bolts;
[0008] The concave mold is provided with a cavity for forming a radome, the demolding ring plate is detachably embedded on the concave mold and located at the outer periphery of the cavity, the concave mold is provided with a mounting groove for accommodating the demolding ring plate, the depth of the mounting groove is adapted to the thickness of the demolding ring plate; the demolding ring plate is connected with the outer extension of the radome; one end of any demolding bolt is connected with the demolding ring plate through threads, and the length of any demolding bolt is greater than the axial height of the radome; the demolding ring plate is provided with a plurality of threaded holes for connecting the demolding bolts.
[0009] By adopting the above technical scheme, after the radome is formed, the convex mold and the concave mold are separated, a plurality of demolding bolts are connected to the demolding ring plate, an external force is applied to the plurality of demolding bolts to move the demolding bolts, the demolding ring plate is driven to move away from the concave mold, and the radome is separated from the concave mold.
[0010] In a specific embodiment, a plurality of clearance holes are provided on the concave mold and on the bottom wall of the mounting groove corresponding to the threaded holes.
[0011] In one specific implementation, the diameter of the clearance hole is at least 2mm larger than the diameter of the stripping bolt; and the depth of the clearance hole is 1-3mm.
[0012] By using the above technical solution, the stripping bolt and the stripping ring plate are fully connected, and the possibility of damaging the outer surface of the die during installation of the stripping bolt is reduced.
[0013] In one specific implementation, the stripping bolt is a full-threaded inner hexagonal cylindrical head screw.
[0014] In one specific implementation, the die end face is provided with a reference hole at each of the four corners.
[0015] In one specific implementation, the diameter of the reference hole is 6mm.
[0016] By using the above technical solution, the reference hole serves as a machining and detection reference hole, ensuring the machining effect.
[0017] In one specific implementation, the die is provided with a plurality of weight-reducing holes and a plurality of ventilation holes, and any of the ventilation holes is in communication with any of the weight-reducing holes.
[0018] By using the above technical solution, the weight-reducing holes help to reduce the weight of the die, facilitating the installation and use of the die, and in cooperation with the ventilation holes, ensuring smooth ventilation and uniform heating of the die.
[0019] In summary, the present application has at least one of the following beneficial technical effects:
[0020] 1. The forming die for radomes disclosed in the present application has the advantage of high stripping efficiency, greatly improving the stripping simplicity of the radome product, reducing the possibility of low yield caused by stripping difficulty, and ensuring the uniformity of the radome product.
[0021] 2. The forming die for radomes disclosed in the present application has simple structure, low cost, and good air tightness. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 The figure is a structural schematic diagram of the radome product in the background art;
[0023] Figure 2 The figure is a structural schematic diagram of the forming die for radomes in the embodiments of the present application;
[0024] Figure 3 The figure is a structural schematic diagram of the die in the embodiments of the present application;
[0025] Figure 4 The figure is a structural schematic diagram of the stripping ring plate in the embodiments of the present application;
[0026] Figure 5 Figure 1 is a schematic view of a concave die according to an embodiment of the present application.
[0027] Reference signs: 1, concave die; 11, cavity; 12, mounting groove; 13, clearance hole; 14, reference hole; 15, weight-reducing hole; 16, vent hole; 2, stripper ring plate; 21, threaded hole; 3, stripper bolt. DETAILED DESCRIPTION
[0028] The drawings will be described below in conjunction with the Figure 2-5 The present application will be described in further detail.
[0029] An embodiment of the present application discloses a forming die for radome.
[0030] Reference Figure 2 The forming die for radome comprises a punch (not shown), a concave die 1, a stripper ring plate 2 and four stripper bolts 3. In the embodiment, the stripper bolts 3 are four, and in other embodiments, the stripper bolts 3 can be other numbers.
[0031] Reference Figure 3 The concave die 1 cooperates with the punch to make the radome compression molding, and the concave die 1 is provided with a cavity 11 for forming the radome body. The radome extension is in contact with the upper surface of the concave die 1.
[0032] Reference Figure 2 and Figure 3 The mounting groove 12 is provided on the upper surface of the concave die 1 and located at the outer periphery of the cavity 11. The stripper ring plate 2 is arranged in the sidewall of the mounting groove 12, and the depth of the mounting groove 12 is adapted to the thickness of the stripper ring plate 2 to ensure that the sidewall end face of the stripper ring plate 2 is flush with the upper surface of the concave die 1. The inner diameter end of the stripper ring plate 2 is in contact with the radome extension.
[0033] Reference Figure 2 and Figure 4 Four threaded holes 21 are uniformly provided on the stripper ring plate 2, and the bottom end of each stripper bolt 3 is connected with the stripper ring plate 2 through any threaded hole 21. The length of any stripper bolt 3 is greater than the axial height of the radome product. In the embodiment, the stripper bolt 3 is a full-threaded inner hexagonal cylindrical head screw.
[0034] Reference Figure 3 The clearance hole 13 corresponding to each threaded hole 21 is provided on the bottom wall of the mounting groove 12 of the concave die 1. The diameter of the clearance hole 13 is at least 2 mm greater than the diameter of the stripper bolt 3, and the depth of the clearance hole 13 is 1-3 mm. In the embodiment, the depth of the clearance hole 13 is 2 mm.
[0035] Reference Figure 3 Four reference holes 14 with a diameter of 6 mm are provided on the upper surface of the concave die 1 and located at the four corners of the upper surface of the concave die 1.
[0036] With reference to Figure 3 And Figure 5 Four weight-reducing holes 15 are arranged at the bottom wall of the female die 1, which are used to reduce the weight of the female die 1 and help to ensure the uniform wall thickness of the female die 1 and uniform heating of the female die 1 during hot-press forming. In addition, a plurality of ventilation holes 16 are arranged through the female die 1, any ventilation hole 16 is communicated with any weight-reducing hole 15, which is used to ensure smooth ventilation and uniform heating during hot-press forming.
[0037] The implementation principle of the forming die for the radome according to the embodiment of the application is as follows:
[0038] After the radome is formed, the male die is separated, and then the four demolding bolts 3 are threadedly connected to the demolding ring plate 2 until the bottom of the demolding bolt 3 abuts against the inner bottom wall of the relief hole 13. By simultaneously applying external force to the four demolding bolts 3, the demolding bolt 3 is moved away from the female die 1 to drive the demolding ring plate 2 to separate from the female die 1. Since the inner diameter end of the demolding ring plate 2 abuts against the radome outer extension, the demolding ring plate 2 can drive the radome product to separate from the female die 1. After the radome and the female die 1 are completely separated, the radome is moved to the product line, and then the external force in the opposite direction is applied to the four demolding bolts 3 to separate the demolding ring plate 2 from the radome outer extension. The length of the demolding bolt 3 is greater than the height of the radome, which avoids the possibility that the head of the demolding bolt 3 rubs against the radome outer extension when the demolding ring plate 2 is separated from the radome outer extension.
[0039] The above are the preferred embodiments of the application, which do not limit the protection scope of the application. Therefore, any equivalent changes made on the basis of the structure, shape, and principle of the application should be covered within the protection scope of the application.
Claims
1. A forming die for a radome, characterized in that: It comprises a die (1), a demoulding ring plate (2) and a plurality of demoulding bolts (3); The die (1) is provided with a cavity (11) for forming the antenna cover body, the demoulding ring plate (2) is detachably embedded in the die (1) and is located on the outer periphery of the cavity (11), the die (1) is provided with a mounting groove (12) for accommodating the demoulding ring plate (2), the depth of the mounting groove (12) being adapted to the thickness of the demoulding ring plate (2); the demoulding ring plate (2) is connected to the outer extension of the antenna cover; One end of any demoulding bolt (3) is threadedly connected to the demoulding ring plate (2), and the length of any demoulding bolt (3) is greater than the axial height of the antenna cover; and the demoulding ring plate (2) is provided with a plurality of threaded holes (21) for connecting the demoulding bolts (3).
2. The radome forming die according to claim 1, wherein: A plurality of clearance holes (13) are provided on the die (1) and on the inner bottom wall of the mounting groove (12) corresponding to the threaded holes (21).
3. The forming die for the radome according to claim 2, wherein: The diameter of the relief hole (13) is at least 2 mm larger than the diameter of the demoulding bolt (3); and the depth of the relief hole (13) is 1-3 mm.
4. The forming die for the radome according to claim 1, wherein: The demoulding bolt (3) is a fully threaded hexagon socket head screw.
5. The forming die for the radome according to claim 1, wherein: Reference holes (14) are respectively provided at the four corners of the end face of the die (1).
6. The radome forming die according to claim 5, wherein: The diameter of the reference hole (14) is 6 mm.
7. The radome forming die according to claim 5, wherein: The die (1) is provided with a plurality of weight-reducing holes (15) and a plurality of ventilation holes (16), and any of the ventilation holes (16) is connected to any of the weight-reducing holes (15).