Structure for embedding and wrapping core mold on grid force-bearing cylindrical tile

Abstract

The utility model discloses a core mold structure for embedding and wrapping grid force-bearing cylindrical tiles, and relates to the technical field of aerospace structural part forming. According to the core mold embedding and wrapping structure for the grid force-bearing cylindrical tile, a grid cavity can be formed after all parts are assembled, the core mold is positioned and wrapped through various insert spigots, annular array is carried out, the grid cavity and the annular cavity are formed, and therefore the core mold can be formed. Then continuous fibers are wound on the grid core mold according to a preset track through forming process means such as winding, laying and weaving, the grid cavity is filled with the continuous fibers, forming machining of the grid force bearing cylinder is achieved, screws for fixing the second tile insert and the first tile insert are detached, and then the continuous fibers are fixed to the grid core mold through the second tile insert and the second tile insert. During demolding, the first tile insert and the second tile insert can be detached by screwing jackscrews into the first tile insert detaching threaded hole and the second tile insert detaching threaded hole correspondingly, finally, the flange plate is detached from the flange spigot, the mandrel and the grid force bearing cylinder are separated through a tool, and demolding of the grid force bearing cylinder is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerospace structural parts forming, in particular to a grid load-bearing tube tile inlaid and wrapped core mold structure. Background Art

[0002] Aerospace is the product of human beings' expansion of the atmosphere and outer space. After more than a hundred years of rapid development, aerospace has become one of the most active and influential fields of science and technology in the 21st century. The major achievements in this field mark the latest development of human civilization and also represent the advanced level of a country's science and technology.

[0003] Among them, the aerospace field uses fiber composite materials to replace metal materials such as aluminum alloys and titanium alloys. Many important structural parts adopt a fiber-wrapped and wound grid structure design to improve load-bearing performance while further reducing weight.

[0004] During the molding process of existing fiber-wrapped and wound grid-shaped structural parts, the molding, production and demoulding of the grid load-bearing cylinder are relatively difficult, resulting in high processing costs for the structural parts, time-consuming and labor-intensive processing, and low efficiency. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a grid load-bearing tube tile inlaid wrapped core mold structure, which solves the problem that the molding, production and demoulding of the grid load-bearing tube are difficult during the molding process of the fiber wrapped and wound grid-like structural parts, resulting in high processing costs of the structural parts, time-consuming and labor-intensive processing, and low efficiency.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a grid load-bearing cylinder tile inlay wrapping core mold structure, including a core shaft, the outer side of the core shaft is provided with a tile positioning stopper one, a tile positioning stopper two and a flange stopper, the outer side of the core shaft is provided with a tile insert one and a tile insert two, the surface of the tile insert one is provided with a tile insert stopper one, a tile insert screw fixing hole one and a tile insert disassembly threaded hole one, the surface of the tile insert two is provided with a tile insert stopper two, a tile insert screw fixing hole two and a tile insert disassembly threaded hole two, and flanges are provided on the left and right sides of the core shaft.

[0007] Preferably, the tile insert 1 is designed in a triangular structure and is symmetrically distributed on the outer side of the core shaft. Two tile insert stoppers are provided on the side of the tile insert 1 close to the core shaft. The inner sides of the tile insert stopper 1 and the tile positioning stopper 1 are adapted to each other to facilitate the positioning of the tile insert 1.

[0008] Preferably, the tile insert screw fixing hole 1 and the tile insert disassembly threaded hole 1 are both set through the tile insert 1, and two tile insert screw fixing holes 1 are set on the surface of the tile insert 1, and are connected with the inner side of the tile insert stop 1, so as to facilitate the disassembly and assembly of the tile insert 1.

[0009] Preferably, the tile insert two is designed in a diamond-shaped structure, and the tile insert two stoppers are symmetrically arranged on one side of the tile insert two close to the core axis, and the inner sides of the tile insert two stoppers and the tile positioning stoppers two are adapted to each other to facilitate the positioning of the tile insert two.

[0010] Preferably, the second tile insert screw fixing hole and the second tile insert disassembly threaded hole are both set through the tile insert. Two of the second tile insert screw fixing holes are located on the surface of the tile insert, and are connected to the inner side of the second tile insert stop, so as to facilitate the disassembly and assembly of the tile insert.

[0011] Preferably, the tile insert one and the tile insert two are both designed with an arc-shaped structure and are adapted to each other with the outer side of the core shaft. A plurality of tile inserts one and two are located on the outer side of the core shaft and are evenly distributed, and are detachably connected to the outer side of the core shaft by screws, thereby realizing the assembly of multiple tile inserts one, tile inserts two and the core shaft.

[0012] Preferably, two flanges and two flange stoppers are symmetrically arranged about the core shaft, the inner sides of the flanges and the flange stoppers are adapted to each other, and are detachably connected by screws, so as to facilitate the positioning and installation of the flanges.

[0013] Beneficial Effects

[0014] The utility model provides a grid bearing tube tile inlay wrapped core mold structure. Compared with the prior art, it has the following beneficial effects:

[0015] 1. The grid bearing cylinder tile inlay wrapped core mold structure is provided with a core shaft, a tile positioning stopper 1, a tile positioning stopper 2, a flange stopper, a tile insert 1, a tile insert stopper 1, a tile insert screw fixing hole 1, a tile insert 2, a tile insert stopper 2, a tile insert screw fixing hole 2, and a flange plate. The flange plates are respectively installed on the flange stops on both sides of the core shaft and fastened with screws respectively. The tile insert stopper 1 is installed into the tile positioning stopper 1 and fastened with screws through the tile insert screw fixing hole 1. , install the tile insert stop second into the tile positioning stop second, and fasten it with screws through the tile insert screw fixing hole two to realize the assembly of various parts. After all the parts are assembled, a grid cavity will be formed. By adopting a variety of insert stop positioning and wrapping core molds, a circular array is performed to form a grid cavity and a circular cavity. Then, through winding, laying, weaving and other molding processes, the continuous fiber is wound onto the grid core mold according to a preset trajectory, and the grid cavity is filled to realize the molding processing of the grid bearing cylinder.

[0016] 2. The grid bearing cylinder tile inlay wrapped core mold structure is provided with a core shaft, a flange stopper, a tile insert one, a tile insert disassembly threaded hole one, a tile insert two, a tile insert disassembly threaded hole two, and a flange plate. After the grid bearing cylinder is completely solidified and finalized, the screws fixing the tile insert two and the tile insert one are removed, and the top screws are respectively screwed into the tile insert disassembly threaded hole one and the tile insert disassembly threaded hole two, so that the tile insert one and the tile insert two can be removed from the surface of the core shaft, and finally the flange plate is removed from the flange stopper, and the core shaft and the grid bearing cylinder are separated by a tooling to realize the demoulding of the grid bearing cylinder. It has the advantages of simple structure, easy manufacturing, convenient demoulding, reuse, low cost, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of demoulding of the utility model;

[0019] Figure 3 It is a schematic diagram of a half-section structure of a tile insert in the AA direction of the utility model;

[0020] Figure 4 It is a schematic diagram of a half-section structure of a tile insert in the BB direction of the utility model.

[0021] In the figure: 1. mandrel; 11. tile positioning stop one; 12. tile positioning stop two; 13. flange stop; 2. tile insert one; 21. tile insert stop one; 22. tile insert screw fixing hole one; 23. tile insert disassembly threaded hole one; 3. tile insert two; 31. tile insert stop two; 32. tile insert screw fixing hole two; 33. tile insert disassembly threaded hole two; 4. flange. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a grid bearing cylinder tile inlay wrapped core mold structure, including a core shaft 1, a tile positioning stop 11, a tile positioning stop 2 12 and a flange stop 13 are arranged on the outer side of the core shaft 1, a tile insert 2 and a tile insert 3 are arranged on the outer side of the core shaft 1, a tile insert stop 21, a tile insert screw fixing hole 22 and a tile insert disassembly threaded hole 23 are arranged on the surface of the tile insert 2, the tile insert 2 is designed in a triangular structure, and is located on the outer side of the core shaft 1 and is symmetrically distributed on the left and right sides, and the tile insert stop 21 is located on the tile insert 2 close to the core shaft 1 There are two on one side, the tile insert stop 21 and the inner side of the tile positioning stop 11 are adapted to each other, the tile insert screw fixing hole 22 and the tile insert disassembly threaded hole 23 are both set through the tile insert 2, and there are two tile insert screw fixing holes 22 located on the surface of the tile insert 2, and they are connected to the inner side of the tile insert stop 21, the flange 4 is respectively installed on the flange stops 13 on both sides of the core shaft 1, and they are fastened with screws respectively, the tile insert stop 21 is installed in the tile positioning stop 11, and it is fastened with screws through the tile insert screw fixing hole 22;

[0024] The surface of the tile insert 23 is provided with a tile insert stop 21, a tile insert screw fixing hole 232 and a tile insert removal threaded hole 233. The tile insert 23 is designed in a diamond structure. The tile insert stop 231 is located on the side of the tile insert 23 close to the core shaft 1 and is symmetrically arranged with two. The tile insert stop 231 and the inner side of the tile positioning stop 212 are adapted to each other. The tile insert screw fixing hole 232 and the tile insert removal threaded hole 233 are both set through the tile insert 23. The tile insert screw fixing hole 232 is provided with a plurality of screw holes 33 for removing the tile insert. Two fixing holes 32 are provided on the surface of the tile insert 3, and are connected to the inner side of the tile insert stop 31. The tile insert 2 and the tile insert 3 are both designed with arc structures, and are adapted to the outer side of the core shaft 1. The tile insert 2 and the tile insert 3 are both located on the outer side of the core shaft 1 and are evenly spaced. There are multiple, and they are detachably connected to the outer side of the core shaft 1 by screws. The tile insert stop 31 is installed into the tile positioning stop 12, and is fastened with screws through the tile insert screw fixing hole 32;

[0025] Flanges 4 are provided on the left and right sides of the core shaft 1. Two flanges 4 and flange stoppers 13 are symmetrically provided about the core shaft 1. The inner sides of the flanges 4 and the flange stoppers 13 are adapted to each other and are detachably connected by screws. The flanges 4 are respectively installed on the flange stoppers 13 on both sides of the core shaft 1 and fastened with screws.

[0026] During use, the flange 4 is respectively installed on the flange stop 13 on both sides of the core shaft 1, and fastened with screws respectively; the tile insert stop 1 21 is installed into the tile positioning stop 11, and fastened with screws through the tile insert screw fixing hole 1 22; the tile insert stop 2 31 is installed into the tile positioning stop 2 12, and fastened with screws through the tile insert screw fixing hole 2 32; all the tile inserts 1 2 and tile inserts 2 3 are assembled in the above manner, and a grid cavity will be formed after all parts are assembled. By adopting a variety of insert stop positioning and wrapping core molds, a ring array is formed to form a grid cavity and a ring cavity, and then Through winding, laying, weaving and other molding processes, the continuous fiber is wound onto the grid core mold according to a preset trajectory, and the grid cavity is filled to realize the molding processing of the grid bearing cylinder. After the grid bearing cylinder is completely solidified and finalized, the screws fixing the tile insert 2 3 and the tile insert 1 2 are removed, and the top screws are respectively screwed into the tile insert removal threaded hole 1 23 and the tile insert removal threaded hole 2 33, so that the tile insert 1 2 and the tile insert 2 3 can be removed from the surface of the core shaft 1, and finally the flange 4 is removed from the flange stop 13, and the core shaft 1 and the grid bearing cylinder are separated by tooling to realize the demoulding of the grid bearing cylinder.

[0027] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grid bearing tube tile inlay wrapping core mold structure, comprising a core shaft (1), characterized in that: The outer side of the core shaft (1) is provided with a tile positioning stopper 1 (11), a tile positioning stopper 2 (12) and a flange stopper (13); the outer side of the core shaft (1) is provided with a tile insert 1 (2) and a tile insert 2 (3); the surface of the tile insert 1 (2) is provided with a tile insert stopper 1 (21), a tile insert screw fixing hole 1 (22) and a tile insert removal threaded hole 1 (23); the surface of the tile insert 2 (3) is provided with a tile insert stopper 2 (31), a tile insert screw fixing hole 2 (32) and a tile insert removal threaded hole 2 (33); and flanges (4) are provided on the left and right sides of the core shaft (1).

2. According to claim 1, a grid bearing tube tile inlay wrapped core mold structure is characterized by: The tile insert one (2) is designed in a triangular structure and is located on the outer side of the core shaft (1) and is symmetrically distributed on the left and right sides. Two tile insert stoppers (21) are provided on the side of the tile insert one (2) close to the core shaft (1). The inner sides of the tile insert stoppers (21) and the tile positioning stoppers (11) are adapted to each other.

3. The grid bearing tube tile inlay wrapped core mold structure according to claim 1 is characterized by: The tile insert screw fixing hole 1 (22) and the tile insert disassembly threaded hole 1 (23) are both set to penetrate the tile insert 1 (2). Two tile insert screw fixing holes 1 (22) are set on the surface of the tile insert 1 (2) and are connected to the inner side of the tile insert stop 1 (21).

4. The grid bearing tube tile inlay wrapped core mold structure according to claim 1 is characterized by: The tile insert second (3) is designed in a diamond-shaped structure, and the tile insert second stopper (31) is symmetrically arranged on one side of the tile insert second (3) close to the core shaft (1), and the inner sides of the tile insert second stopper (31) and the tile positioning stopper second (12) are adapted to each other.

5. The grid bearing tube tile inlay wrapped core mold structure according to claim 1 is characterized by: The second tile insert screw fixing hole (32) and the second tile insert disassembly threaded hole (33) are both arranged to penetrate the second tile insert (3). Two second tile insert screw fixing holes (32) are arranged on the surface of the second tile insert (3) and are connected to the inner side of the second tile insert stop (31).

6. The grid bearing tube tile inlay wrapped core mold structure according to claim 1 is characterized by: The tile insert one (2) and the tile insert two (3) are both designed with an arc-shaped structure and are mutually adapted to the outer side of the core shaft (1). A plurality of the tile insert one (2) and the tile insert two (3) are both located on the outer side of the core shaft (1) and are evenly spaced and detachably connected to the outer side of the core shaft (1) by screws.

7. The grid-bearing tube tile inlay wrapped core mold structure according to claim 1 is characterized by: The flange (4) and the flange stop (13) are both arranged in two symmetric positions about the core shaft (1). The inner sides of the flange (4) and the flange stop (13) are adapted to each other and are detachably connected by screws.

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