Sandwich prefabricated body antenna housing mold for spaceflight and forming method of sandwich prefabricated body antenna housing mold

Abstract

The invention discloses a spaceflight sandwich preform radome mold and a forming method thereof.The spaceflight sandwich preform radome mold comprises a supporting plate, a plurality of modules are arranged at the top of the supporting plate, sealing strips are arranged between the modules, the sealing strips and the modules form a lower mold, a forming part is arranged on the inner side of the lower mold, and guide blocks are fixedly connected to the bottoms of the sealing strips; a plurality of guide grooves are formed in the top of the supporting plate, and the guide blocks are slidably connected with the guide grooves correspondingly. Through the arranged opening and closing assembly, the guide blocks are driven to move in the sliding grooves along the guide rods, and the guide blocks are far away from the sandwich layer, so that the four modules are driven to be far away from one another in the radial direction of the supporting plate, and wrapping of the sandwich layer is relieved; and through the arranged linkage assembly, the first tooth block is engaged with the second tooth block, and therefore wrapping of the sandwich layer by the sealing strip and the module can be conveniently removed.

Description

Technical Field

[0001] The invention relates to the technical field of moulds, in particular to a sandwich preform antenna cover mould for aerospace use and a forming method thereof. Background Art

[0002] The aerospace sandwich preform radome is an important component of the spacecraft, mainly used to protect the antenna system from the influence of the external environment and ensure the normal transmission of electromagnetic waves. The sandwich preform radome is usually composed of multiple layers of composite materials, in which the sandwich layer is the core structure, which has the characteristics of light weight and high strength, and can effectively improve the overall performance of the radome. In order to ensure the precise molding of the radome, the design and manufacturing process of the mold are crucial. Traditional mold design mostly adopts a fixed structure. Although it can meet the basic molding requirements, it has problems such as inconvenient operation and difficult to control molding quality in scenarios with complex shapes and high precision requirements.

[0003] However, in the existing sandwich preform antenna cover mold, the mold consists of an upper mold and a lower mold. Since the production process of the antenna cover involves multiple demolding and operations, the center layer is easily damaged during the multiple demolding processes, and when the resin is applied to the outside of the sandwich preform, its concave and convex surfaces need to be processed at the same time. The usual method requires taking it out of the lower mold and operating it, which is more troublesome. After the resin is manually applied, unevenness will occur. Therefore, a sandwich preform antenna cover mold for aerospace is needed to solve the existing deficiencies. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and to propose a space-use sandwich preform antenna cover mold and a molding method thereof. By setting an opening and closing component, the extrusion of the sandwich layer during operation is reduced to avoid its deformation, thereby improving the convenience of operation for the staff; by setting a linkage component, the position of the sealing strip is controlled according to different processes, thereby enriching the functionality of the sealing strip; by setting a rotating component, the sealing strip is rotated along the surface of the sandwich layer, which is conducive to evenly applying the resin coating on the surface of the sandwich layer and improving the quality of the sandwich layer after molding.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A sandwich preform antenna cover mold for aerospace and a molding method thereof, comprising a support plate, a plurality of modules are arranged on the top of the support plate, and sealing strips are arranged between the modules, the sealing strips and the modules constitute a lower mold, and a molding piece is arranged on the inner side of the lower mold, the bottom of the sealing strips are fixedly connected with guide blocks, a plurality of guide grooves are opened on the top of the support plate, and the guide blocks are slidably connected to the guide grooves respectively, an opening and closing component is arranged inside the support plate, and the opening and closing component is fixedly connected to the bottom of the module, a linkage component is arranged inside the support plate, and the linkage component is connected to the guide block, a rotating component is arranged inside the support plate, and one end of the rotating component is connected to the guide block.

[0006] Preferably, the opening and closing assembly includes a driving disk, a gear ring 1, a gear 1, a driving block and a guide block, the gear ring 1 is fixedly connected to the outer side of the driving disk, and the gear ring 1 and the driving disk are movably connected to the inside of the support plate, the outer side of the support plate is fixedly connected with a accommodating block, the gear 1 is movably connected to the inside of the accommodating block through a rotating shaft, the gear 1 is meshed with the gear ring 1, the driving blocks and guide blocks are distributed in a circular array, and the driving blocks are fixedly connected to the guide blocks respectively.

[0007] Preferably, the driving disk is provided with a plurality of driving grooves, and the driving blocks are respectively slidably connected to the driving grooves, the supporting plate is provided with a plurality of sliding grooves, and the guide blocks are respectively slidably connected to the sliding grooves, the interiors of the sliding grooves are fixedly connected with guide rods, the guide rods penetrate the guide blocks, and the guide rods are movably connected to the guide blocks, and the top ends of the guide blocks are respectively fixedly connected to the bottom ends of the modules.

[0008] Preferably, the linkage assembly includes a movable frame, a connecting plate, a tooth block 1 and a connecting rod. The movable frame is distributed in a circular array, and connecting plates are movably connected to both sides of the movable frame. The top end of the connecting rod is fixedly connected to the bottom end of the tooth block 1. A through hole is opened in the middle position of the movable frame, and the connecting rod movably passes through the middle position of the movable frame, and the connecting rod extends to the inside of the through hole.

[0009] Preferably, one end of the connecting plate away from the movable frame is fixedly connected to the side of the guide block, and the movable frame and the connecting plate are both arc-shaped, and the bottom of the guide block is fixedly connected with tooth block 2, and tooth block 1 is meshed with tooth block 2.

[0010] Preferably, the linkage assembly also includes an adjustment plate, a connecting ring and an adjustment rod, the adjustment plates are distributed in a circular array, and the adjustment plates are fixedly connected to the inner side of the connecting ring, the adjustment plates are movably passed through the through holes, and the bottom end of the connecting rod is fixedly connected to the top end of the adjustment plate, the adjustment plate and the connecting ring are movably connected to the inside of the support plate, the adjustment rod is threadedly connected to the support plate, and the end of the adjustment rod is rotatably connected to the surface of the adjustment plate.

[0011] Preferably, the rotating assembly includes a rotating ring, a second gear ring, a second gear and a folding spring, the second gear ring is fixedly connected to the bottom end of the rotating ring, the rotating ring and the second gear ring are movably connected to the support plate, the second gear ring is movably connected to the inside of the support plate through a rotating shaft, and the second gear ring is meshed with the second gear ring, the folding springs are distributed in a circular array, a plurality of accommodating grooves are provided on the outside of the rotating ring, and one end of the folding spring is fixedly connected to the inside of the accommodating groove.

[0012] Preferably, the guide block is L-shaped, one end of the folding spring away from the accommodating groove is fixedly connected to the inner side of the guide block, and a plurality of limiting grooves are provided on the top of the rotating ring, and the limiting grooves are movably matched with the guide block.

[0013] Preferably, the rotating assembly also includes a synchronous wheel 1, a synchronous wheel 2, a synchronous belt and a rotating rod, the synchronous wheel 1 is fixedly connected to the outer side of the rotating shaft of the gear 2, the synchronous wheel 2 is movably connected to the inside of the support plate through the rotating shaft, the outer side of the synchronous wheel 1 and the outer side of the synchronous wheel 2 are sleeved with a synchronous belt, and the synchronous wheel 1, the synchronous wheel 2 and the synchronous belt constitute a belt transmission structure.

[0014] A method for forming a sandwich preform radome mold for aerospace use comprises the following steps: S1. First, the sealing strip and the module are tightly connected to each other to form a lower mold, the lower mold cooperates with the upper mold, a sandwich layer is set between the lower mold and the upper mold, and the two molds are inverted; S2. Subsequently, the gear 1 is controlled to rotate by a wrench. Since the gear 1 is meshed with the gear ring 1, the gear ring 1 and the driving disk are driven to rotate. Since the driving block is slidably connected with the driving groove on the driving disk, the guide block is movably connected with the slide groove, and the driving groove is distributed along the radial direction of the support plate. Therefore, when the driving disk rotates, the guide block is driven to move inside the slide groove along the guide rod, and the guide block is away from the sandwich layer, thereby driving the four modules to move away from each other along the radial direction of the support plate, thereby releasing the wrapping of the sandwich layer; S3. Since both sides of the guide block are connected to the connecting plate, and one end of the connecting plate is movably connected to the inside of the moving frame, the moving frame and the connecting plate move synchronously with the guide block, and during the movement, the connecting plate continuously moves out of the inside of the moving frame, so that the connecting rod and the tooth block 1 move along the length direction of the adjustment plate. When the tooth block 1 and the tooth block 2 are meshed, the guide block is driven to move along the guide groove, so that the sealing strip moves away from the sandwich layer synchronously with the module; S4. Subsequently, the staff can operate on the convex surface of the sandwich layer and apply the resin material to the convex surface of the sandwich layer; S5. Then, by rotating the adjusting rod, the connecting ring moves inside the supporting plate, so that the adjusting rod moves along the inside of the perforation, driving the tooth block 1 and the tooth block 2 to separate, and under the action of the folding spring, the guide block is pulled to move in the opposite direction along the guide groove until the guide block matches the limiting groove, and at this time, the sealing strip is attached to the surface of the sandwich layer; S6. Then, the rotary rod is rotated to drive the synchronous wheel 2 to rotate. Under the action of the synchronous belt, the synchronous wheel 1 and the gear 2 rotate synchronously. Since the gear 2 is meshed with the gear ring 2, the gear ring 2 and the rotating ring are controlled to rotate, thereby driving the sealing strip to rotate along the axis of the support plate, so that the sealing strip rotates along the surface of the sandwich layer, so that the resin coating on the surface of the sandwich layer is evenly applied, and the sealing strip is reset. Finally, the module is reset, so that the module and the sealing strip are tightly connected to form a lower mold.

[0015] Compared with the prior art, the present invention provides a sandwich preform radome mold for aerospace use, which has the following beneficial effects: 1. The aerospace sandwich preform antenna cover mold drives the guide block to move along the guide rod inside the slide slot through the opening and closing components, and the guide block is away from the sandwich layer, thereby driving the four modules to move away from each other in the radial direction of the support plate, thereby releasing the wrapping of the sandwich layer, so as to facilitate the staff to operate the convex surface of the sandwich layer, so that there is no need to take out the sandwich layer for operation, reducing the extrusion of the sandwich layer during the operation, avoiding its deformation, thereby improving the convenience of operation for the staff; 2. The aerospace sandwich preform antenna cover mold has a linkage component, and the tooth block 1 is meshed with the tooth block 2, so that it is convenient to release the sealing strip and the module from wrapping the sandwich layer. In addition, when the tooth block 1 is separated from the tooth block 2, the sealing strip moves back to the surface of the sandwich layer under the action of the folding spring, and the sealing strip can be controlled to rotate by the rotating component, so as to control the position of the sealing strip according to different processes, thereby enriching the functionality of the sealing strip; 3. The aerospace sandwich preform antenna cover mold rotates the rotary rod through the rotating component set to drive the synchronous wheel 2 to rotate. Under the action of the synchronous belt, the synchronous wheel 1 and the gear 2 rotate synchronously. Since the gear 2 is meshed with the gear ring 2, the gear ring 2 and the rotating ring are controlled to rotate, thereby driving the sealing strip to rotate along the axis of the support plate, so that the sealing strip rotates along the surface of the sandwich, which is conducive to evenly applying the resin coating on the surface of the sandwich layer and improving the quality of the sandwich layer after molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the morphological structure of the present invention; Figure 3 For the present invention Figure 2Schematic diagram of the inverted structure; Figure 4 For the present invention Figure 3 Schematic diagram of local cross-section structure; Figure 5 For the present invention Figure 2 Schematic diagram of the structure except the support plate; Figure 6 This is a schematic diagram of the internal structure of the support plate of the present invention; Figure 7 This is a schematic diagram of the exploded structure of the opening and closing assembly of the present invention; Figure 8 It is a schematic diagram of the linkage assembly structure of the present invention; Fig. 9 It is a schematic diagram of the structure of the rotating assembly of the present invention; Fig.10 For the present invention Figure 7 A schematic diagram of the enlarged structure at A in the middle; Fig.11 For the present invention Figure 8 A schematic diagram of the enlarged structure at B in the middle; Fig.12 For the present invention Fig. 9 Schematic diagram of the enlarged structure at point C in the middle.

[0017] In the figure: 1. support plate; 2. module; 3. sealing strip; 4. molded part; 5. guide block; 6. guide groove; 7. opening and closing component; 701. drive plate; 702. gear ring 1; 703. gear 1; 704. drive block; 705. guide block; 8. linkage component; 801. mobile frame; 802. connecting plate; 803. gear block 1; 804. connecting rod; 805. adjustment plate; 806. connecting ring; 807. adjustment rod; 9. rotating component; 901. rotating ring; 902. gear ring 2; 903. gear 2; 904. folding spring; 905. synchronous wheel 1; 906. synchronous wheel 2; 907. synchronous belt; 908. rotating rod; 10. accommodating block; 11. driving groove; 12. slide groove; 13. guide rod; 14. perforation; 15. gear block 2; 16. accommodating groove; 17. limiting groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention. Example

[0019] Reference Figure 1-3 ,like Figure 1-12As shown, the present invention provides a technical solution: a sandwich preform antenna cover mold for aerospace and a molding method thereof, comprising a support plate 1, a plurality of modules 2 are arranged on the top of the support plate 1, and sealing strips 3 are arranged between the modules 2, the sealing strips 3 and the modules 2 form a lower mold, and a molding part 4 is arranged on the inner side of the lower mold, and the molding part 4 is a sandwich preform, referred to as a sandwich layer. In this embodiment, the number of modules 2 and sealing strips 3 is four, and the sealing strips 3 and modules 2 are staggered in a circular shape, and the modules 2 and sealing strips 3 are close to or away from each other along the radial direction of the support plate 1. When they are close to each other, the modules 2 and the sealing strips 3 form a complete lower mold. The mold and the sealing strip 3 are used to improve the connection precision between the modules 2 and reduce the outflow of the material inside the mold. The bottom of the sealing strip 3 is fixedly connected with a guide block 5. The top of the support plate 1 is provided with several guide grooves 6, and the guide blocks 5 are respectively slidably connected with the guide grooves 6. The cooperation between the guide blocks 5 and the guide grooves 6 is conducive to limiting the moving direction of the sealing strip 3. An opening and closing component 7 is arranged inside the support plate 1, and the opening and closing component 7 is fixedly connected to the bottom of the module 2. A linkage component 8 is arranged inside the support plate 1, and the linkage component 8 is connected to the guide block 5. A rotating component 9 is arranged inside the support plate 1, and one end of the rotating component 9 is connected to the guide block 5.

[0020] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Fig.10As shown, the opening and closing assembly 7 includes a driving disk 701, a gear ring 1 702, a gear 1 703, a driving block 704 and a guide block 705. The gear ring 1 702 is fixedly connected to the outer side of the driving disk 701, and the gear ring 1 702 and the driving disk 701 are both movably connected to the inside of the support plate 1. The outer side of the support plate 1 is fixedly connected to the accommodating block 10. The gear 1 703 is movably connected to the inside of the accommodating block 10 through a rotating shaft. The end of the rotating shaft of the gear 1 703 is designed as an octagonal slot hole, and it can only be rotated by a special wrench to avoid the rotation of the gear 1 703 during non-operation. The gear 1 703 is meshed with the gear ring 1 702. The driving block 704 and the guide block 705 are distributed in a circular array, and the driving block 704 is respectively connected to the guide block 705. Fixed connection, a plurality of driving grooves 11 are provided on the driving disk 701, and the driving blocks 704 are respectively slidably connected with the driving grooves 11, a plurality of slide grooves 12 are provided on the support plate 1, the driving grooves 11 and the slide grooves 12 are arranged at an acute angle, and the driving grooves 11 are distributed along the radial direction of the support plate 1, and the guide blocks 705 are respectively slidably connected with the slide grooves 12, and the interior of the slide grooves 12 is fixedly connected with guide rods 13, the guide rods 13 penetrate the guide blocks 705, and the guide rods 13 are movably connected with the guide blocks 705, and the top ends of the guide blocks 705 are respectively fixedly connected with the bottom ends of the modules 2, and the position of the sandwich layer is fixed by the cooperation between the upper mold and the lower mold, and the upper mold and the lower mold are inverted, and the control modules 2 are kept away from each other, so as to facilitate the processing operation of the sandwich layer.

[0021] The gear 703 is controlled to rotate by a wrench. Since the gear 703 is meshed with the gear ring 702, the gear ring 702 and the driving disk 701 are driven to rotate. Since the driving block 704 is slidably connected with the driving groove 11 on the driving disk 701, the guide block 705 is movably connected with the slide groove 12, and the driving groove 11 is distributed along the radial direction of the support plate 1. Therefore, when the driving disk 701 rotates, the guide block 705 is driven to move inside the slide groove 12 along the guide rod 13, and the guide block 705 is away from the sandwich layer, thereby driving the four modules 2 to move away from each other in the radial direction of the support plate 1, thereby releasing the wrapping of the sandwich layer, thereby facilitating the staff to operate the convex surface of the sandwich layer, thereby eliminating the need to take out the sandwich layer for operation, reducing the extrusion of the sandwich layer during operation, and avoiding its deformation, thereby improving the convenience of operation for the staff.

[0022] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Fig.11As shown, the linkage assembly 8 includes a moving frame 801, a connecting plate 802, a tooth block 803 and a connecting rod 804. The moving frame 801 is distributed in a circular array, and both sides of the moving frame 801 are movably connected with the connecting plates 802. The top of the connecting rod 804 is fixedly connected to the bottom end of the tooth block 803. A through hole 14 is opened in the middle position of the moving frame 801. The connecting rod 804 movably passes through the middle position of the moving frame 801, and the connecting rod 804 extends to the inside of the through hole 14. One end of the connecting plate 802 away from the moving frame 801 is fixedly connected to the side of the guide block 705, and the moving frame 801 and the connecting plate 802 are both arc-shaped. The bottom of the guide block 5 is fixedly connected with the tooth block 11. 5, and the tooth block 1 803 is meshed with the tooth block 2 15, the linkage assembly 8 also includes an adjustment plate 805, a connecting ring 806 and an adjustment rod 807, the adjustment plates 805 are distributed in a circular array, and the adjustment plates 805 are fixedly connected to the inner side of the connecting ring 806, the adjustment plates 805 are respectively movably penetrated through the through holes 14, so that the movable frame 801 moves along the adjustment plate 805 during the movement inside the support plate 1, and the bottom end of the connecting rod 804 is fixedly connected to the top end of the adjustment plate 805, the adjustment plate 805 and the connecting ring 806 are both movably connected to the inside of the support plate 1, the adjustment rod 807 is threadedly connected to the support plate 1, and the end of the adjustment rod 807 is rotatably connected to the surface of the adjustment plate 805.

[0023] By rotating the adjusting rod 807, the connecting ring 806 moves inside the support plate 1, so that the adjusting rod 807 moves along the inside of the perforation 14, driving the tooth block 1 803 to separate from the tooth block 2 15. Reverse rotation can make the tooth block 1 803 re-engage with the tooth block 2 15, thereby establishing a connection between the movable frame 801 and the sealing strip 3. When it is necessary to control the module 2 and the sealing strip 3 to move away radially along the support plate 1 at the same time, the tooth block 1 803 engages with the tooth block 2 15, thereby facilitating the release of the sealing strip 3 and the module 2 from wrapping the sandwich layer. In addition, when the tooth block 1 803 is separated from the tooth block 2 15, under the action of the folding spring 904, the sealing strip 3 moves back to the surface of the sandwich layer, and the rotation of the sealing strip 3 can be controlled by the rotating component 9, so as to control the position of the sealing strip 3 according to different processes, thereby enriching the functionality of the sealing strip 3.

[0024] like Figure 1 , Figure 4 , Figure 5 , Fig. 9 and Fig.12As shown, the rotating assembly 9 includes a rotating ring 901, a second gear ring 902, a second gear 903 and a folding spring 904. The second gear ring 902 is fixedly connected to the bottom end of the rotating ring 901. The rotating ring 901 and the second gear ring 902 are both movably connected to the support plate 1. The second gear 903 is movably connected to the inside of the support plate 1 through a rotating shaft, and the second gear 903 is meshed with the second gear ring 902. The folding springs 904 are distributed in a circular array. A plurality of receiving grooves 16 are provided on the outer side of the rotating ring 901. One end of the folding spring 904 is fixedly connected to the inside of the receiving groove 16. The guide block 5 is L-shaped, and the folding spring 904 is away from the receiving groove. One end of the receiving groove 16 is fixedly connected to the inner side of the guide block 5, and a plurality of limit grooves 17 are provided on the top of the rotating ring 901, and the limit grooves 17 are movably matched with the guide block 5. The rotating assembly 9 also includes a synchronous wheel 1 905, a synchronous wheel 2 906, a synchronous belt 907 and a rotating rod 908. The synchronous wheel 1 905 is fixedly connected to the outer side of the rotating shaft of the gear 2 903, and the synchronous wheel 2 906 is movably connected to the inside of the support plate 1 through the rotating shaft. The outer sides of the synchronous wheel 1 905 and the outer sides of the synchronous wheel 2 906 are sleeved with a synchronous belt 907, and the synchronous wheel 1 905, the synchronous wheel 2 906 and the synchronous belt 907 constitute a belt transmission structure.

[0025] Rotate the rotary rod 908 to drive the synchronous wheel 2 906 to rotate. Under the action of the synchronous belt 907, the synchronous wheel 1 905 and the gear 2 903 rotate synchronously. Since the gear 2 903 is meshed with the gear ring 2 902, the gear ring 2 902 and the rotating ring 901 are controlled to rotate, thereby driving the sealing strip 3 to rotate along the axis of the support plate 1, so that the sealing strip 3 rotates along the surface of the sandwich, which is conducive to evenly applying the resin coating on the surface of the sandwich layer and improving the quality of the sandwich layer after molding.

[0026] A method for forming a sandwich preform radome mold for aerospace use comprises the following steps: S1. First, the sealing strip 3 and the module 2 are tightly connected to each other to form a lower mold, the lower mold cooperates with the upper mold, a sandwich layer is provided between the lower mold and the upper mold, and the two molds are inverted; S2. Subsequently, the gear 1 703 is controlled to rotate by a wrench. Since the gear 1 703 is meshed with the gear ring 1 702, the gear ring 1 702 and the driving disk 701 are driven to rotate. Since the driving block 704 is slidably connected with the driving groove 11 on the driving disk 701, the guide block 705 is movably connected with the slide groove 12, and the driving groove 11 is distributed along the radial direction of the support plate 1, when the driving disk 701 rotates, the guide block 705 is driven to move inside the slide groove 12 along the guide rod 13, and the guide block 705 is away from the sandwich layer, thereby driving the four modules 2 to move away from each other along the radial direction of the support plate 1, so as to release the wrapping of the sandwich layer; S3. Since both sides of the guide block 705 are connected to the connecting plate 802, and one end of the connecting plate 802 is movably connected to the inside of the moving frame 801, the moving frame 801 and the connecting plate 802 move synchronously with the guide block 705, and during the movement, the connecting plate 802 continuously moves out of the inside of the moving frame 801, so that the connecting rod 804 and the tooth block 1 803 move along the length direction of the adjustment plate 805. When the tooth block 1 803 and the tooth block 2 15 are meshed, the guide block 5 is driven to move along the guide groove 6, so that the sealing strip 3 moves away from the sandwich layer synchronously with the module 2; S4. Subsequently, the staff can operate on the convex surface of the sandwich layer and apply the resin material to the convex surface of the sandwich layer; S5. Then, by rotating the adjusting rod 807, the connecting ring 806 moves inside the supporting plate 1, so that the adjusting rod 807 moves along the inside of the through hole 14, driving the tooth block 1 803 to separate from the tooth block 2 15. Under the action of the folding spring 904, the guide block 5 is pulled to move in the opposite direction along the guide groove 6 until the guide block 5 matches with the limiting groove 17. At this time, the sealing strip 3 is attached to the surface of the sandwich layer. S6. Then, the rotary rod 908 is rotated to drive the synchronous wheel 2 906 to rotate. Under the action of the synchronous belt 907, the synchronous wheel 1 905 and the gear 2 903 rotate synchronously. Since the gear 2 903 is meshed with the gear ring 2 902, the gear ring 2 902 and the rotating ring 901 are controlled to rotate, thereby driving the sealing strip 3 to rotate along the axis of the support plate 1, so that the sealing strip 3 rotates along the surface of the sandwich, so that the resin coating on the surface of the sandwich layer is evenly applied, and the sealing strip 3 is reset. Finally, the module 2 is reset, so that the module 2 and the sealing strip 3 are tightly connected to form a lower mold.

[0027] Working principle: When in use, first, the sealing strip 3 and the module 2 are tightly connected to each other to form a lower mold, the lower mold cooperates with the upper mold, a sandwich layer is arranged between the lower mold and the upper mold, the two molds are inverted, and then, the gear 1 703 is controlled to rotate by a wrench, because the gear 1 703 is meshed with the gear ring 1 702, thereby driving the gear ring 1 702 and the driving disk 701 to rotate, because the driving block 704 is slidably connected with the driving groove 11 on the driving disk 701, the guide block 705 is movably connected with the slide groove 12, and the driving groove 11 is distributed along the radial direction of the support plate 1, so that when the driving disk 701 rotates, the belt The movable guide block 705 moves inside the slide groove 12 along the guide rod 13, and the guide block 705 moves away from the sandwich layer, thereby driving the four modules 2 to move away from each other in the radial direction of the support plate 1, thereby releasing the wrapping of the sandwich layer; since both sides of the guide block 705 are connected to the connecting plate 802, and one end of the connecting plate 802 is movably connected to the inside of the moving frame 801, the moving frame 801 and the connecting plate 802 move synchronously with the guide block 705, and during the movement, the connecting plate 802 continuously moves out of the inside of the moving frame 801, so that the connecting rod 804 and the tooth block 1 803 move along the length direction of the adjustment plate 805. When tooth block 803 and tooth block 2 15 are meshed, guide block 5 is driven to move along guide groove 6, that is, sealing strip 3 is synchronously moved away from sandwich layer with module 2; then, the staff can operate the convex surface of sandwich layer and apply resin material to the convex surface of sandwich layer; then, by rotating adjustment rod 807, connecting ring 806 is moved inside support plate 1, so that adjustment rod 807 moves along the inside of perforation 14, driving tooth block 1 803 to separate from tooth block 2 15, under the action of folding spring 904, guide block 5 is pulled to move in the opposite direction along guide groove 6 until guide block 5 is matched with limit groove 17, at this time, When the sealing strip 3 is attached to the surface of the sandwich layer, the rotary rod 908 is then rotated to drive the synchronous wheel 2 906 to rotate. Under the action of the synchronous belt 907, the synchronous wheel 1 905 and the gear 2 903 are rotated synchronously. Since the gear 2 903 is meshed with the gear ring 2 902, the gear ring 2 902 and the rotating ring 901 are controlled to rotate, thereby driving the sealing strip 3 to rotate along the axis of the support plate 1, so that the sealing strip 3 rotates along the surface of the sandwich layer, so that the resin coating on the surface of the sandwich layer is evenly applied, and the sealing strip 3 is reset. Finally, the module 2 is reset, so that the module 2 and the sealing strip 3 are tightly connected to form a lower mold.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sandwich preform radome mold for aerospace use, comprising a support plate, characterized in that: Several modules are arranged on the top of the support plate, and sealing strips are arranged between the modules, the sealing strips and the modules form a lower mold, and a molding piece is arranged on the inner side of the lower mold, the bottom of the sealing strips are fixedly connected with guide blocks, several guide grooves are arranged on the top of the support plate, and the guide blocks are slidably connected with the guide grooves respectively, an opening and closing component is arranged inside the support plate, and the opening and closing component is fixedly connected with the bottom of the module, a linkage component is arranged inside the support plate, and the linkage component is connected with the guide block, a rotating component is arranged inside the support plate, and one end of the rotating component is connected with the guide block.

2. The aerospace sandwich preform radome mold according to claim 1, characterized in that: The opening and closing assembly includes a driving disk, a gear ring 1, a gear 1, a driving block and a guide block. The gear ring 1 is fixedly connected to the outer side of the driving disk, and the gear ring 1 and the driving disk are movably connected to the inside of a support plate. A accommodating block is fixedly connected to the outer side of the support plate. The gear 1 is movably connected to the inside of the accommodating block through a rotating shaft. The gear 1 is meshed with the gear ring 1. The driving blocks and guide blocks are distributed in a circular array, and the driving blocks are fixedly connected to the guide blocks respectively.

3. The aerospace sandwich preform radome mold according to claim 2, characterized in that: The driving disk is provided with a plurality of driving grooves, and the driving blocks are respectively slidably connected to the driving grooves; the supporting plate is provided with a plurality of sliding grooves, and the guide blocks are respectively slidably connected to the sliding grooves; the interiors of the sliding grooves are fixedly connected with guide rods, the guide rods penetrate the guide blocks, and the guide rods are movably connected to the guide blocks, and the top ends of the guide blocks are respectively fixedly connected to the bottom ends of the modules.

4. The aerospace sandwich preform radome mold according to claim 1, characterized in that: The linkage assembly includes a moving frame, a connecting plate, a tooth block 1 and a connecting rod. The moving frames are distributed in a circular array, and connecting plates are movably connected to both sides of the moving frames. The top end of the connecting rod is fixedly connected to the bottom end of the tooth block 1. A through hole is opened in the middle position of the moving frame. The connecting rod movably passes through the middle position of the moving frame, and the connecting rod extends to the inside of the through hole.

5. The aerospace sandwich preform radome mold according to claim 4, characterized in that: One end of the connecting plate away from the moving frame is fixedly connected to the side of the guide block, and the moving frame and the connecting plate are both arc-shaped. The bottom of the guide block is fixedly connected with tooth block 2, and tooth block 1 is meshed with tooth block 2.

6. The aerospace sandwich preform radome mold according to claim 5, characterized in that: The linkage assembly also includes an adjustment plate, a connecting ring and an adjustment rod. The adjustment plates are distributed in a circular array and are fixedly connected to the inner side of the connecting ring. The adjustment plates are movably passed through the through holes, and the bottom end of the connecting rod is fixedly connected to the top end of the adjustment plate. The adjustment plate and the connecting ring are movably connected to the inside of the support plate. The adjustment rod is threadedly connected to the support plate, and the end of the adjustment rod is rotatably connected to the surface of the adjustment plate.

7. The aerospace sandwich preform radome mold according to claim 1, characterized in that: The rotating assembly includes a rotating ring, a second gear ring, a second gear and a folding spring. The second gear ring is fixedly connected to the bottom end of the rotating ring. The rotating ring and the second gear ring are both movably connected to the support plate. The second gear is movably connected to the inside of the support plate through a rotating shaft, and the second gear is meshed with the second gear ring. The folding springs are distributed in a circular array. Several accommodating grooves are opened on the outside of the rotating ring, and one end of the folding spring is fixedly connected to the inside of the accommodating groove.

8. The aerospace sandwich preform radome mold according to claim 7, characterized in that: The guide block is L-shaped, one end of the folding spring away from the accommodating groove is fixedly connected to the inner side of the guide block, and a plurality of limiting grooves are provided on the top of the rotating ring, and the limiting grooves are movably matched with the guide block.

9. The aerospace sandwich preform radome mold according to claim 8, characterized in that: The rotating assembly also includes a synchronous wheel 1, a synchronous wheel 2, a synchronous belt and a rotating rod. The synchronous wheel 1 is fixedly connected to the outer side of the rotating shaft of the gear 2, and the synchronous wheel 2 is movably connected to the inside of the support plate through the rotating shaft. The outer sides of the synchronous wheel 1 and the synchronous wheel 2 are sleeved with synchronous belts, and the synchronous wheel 1, the synchronous wheel 2 and the synchronous belt constitute a belt transmission structure.

10. A method for forming a sandwich preform radome mold for aerospace use according to any one of claims 1 to 9, characterized in that: The steps include: S1. First, the sealing strip and the module are tightly connected to each other to form a lower mold, the lower mold cooperates with the upper mold, a sandwich layer is set between the lower mold and the upper mold, and the two molds are inverted; S2. Subsequently, the gear 1 is controlled to rotate by a wrench. Since the gear 1 is meshed with the gear ring 1, the gear ring 1 and the driving disk are driven to rotate. Since the driving block is slidably connected with the driving groove on the driving disk, the guide block is movably connected with the slide groove, and the driving groove is distributed along the radial direction of the support plate. Therefore, when the driving disk rotates, the guide block is driven to move inside the slide groove along the guide rod, and the guide block is away from the sandwich layer, thereby driving the four modules to move away from each other along the radial direction of the support plate, thereby releasing the wrapping of the sandwich layer; S3. Since both sides of the guide block are connected to the connecting plate, and one end of the connecting plate is movably connected to the inside of the moving frame, the moving frame and the connecting plate move synchronously with the guide block, and during the movement, the connecting plate continuously moves out of the inside of the moving frame, so that the connecting rod and the tooth block 1 move along the length direction of the adjustment plate. When the tooth block 1 and the tooth block 2 are meshed, the guide block is driven to move along the guide groove, so that the sealing strip moves away from the sandwich layer synchronously with the module; S4. Subsequently, the staff can operate on the convex surface of the sandwich layer and apply the resin material to the convex surface of the sandwich layer; S5. Then, by rotating the adjusting rod, the connecting ring moves inside the supporting plate, so that the adjusting rod moves along the inside of the perforation, driving the tooth block 1 and the tooth block 2 to separate, and under the action of the folding spring, the guide block is pulled to move in the opposite direction along the guide groove until the guide block matches the limiting groove, and at this time, the sealing strip is attached to the surface of the sandwich layer; S6. Then, the rotary rod is rotated to drive the synchronous wheel 2 to rotate. Under the action of the synchronous belt, the synchronous wheel 1 and the gear 2 rotate synchronously. Since the gear 2 is meshed with the gear ring 2, the gear ring 2 and the rotating ring are controlled to rotate, thereby driving the sealing strip to rotate along the axis of the support plate, so that the sealing strip rotates along the surface of the sandwich layer, so that the resin coating on the surface of the sandwich layer is evenly applied, and the sealing strip is reset. Finally, the module is reset, so that the module and the sealing strip are tightly connected to form a lower mold.

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