CN108177758B

CN108177758B - Skin structure and skin mounting and dismounting method

Info

Publication number: CN108177758B
Application number: CN201711285950.3A
Authority: CN
Inventors: 胡宝帅
Original assignee: Beijing Infinite Space Technology Co ltd
Current assignee: Beijing Infinite Space Technology Co ltd
Priority date: 2017-12-07
Filing date: 2017-12-07
Publication date: 2020-05-22
Anticipated expiration: 2037-12-07
Also published as: CN108177758A

Abstract

The invention belongs to the technical field of aerospace, and particularly relates to a skin structure and a connecting method. The skin structure comprises a skin plate, a buckle and a positioning piece, wherein the positioning piece is fixedly arranged on the skin plate and can be matched and connected with a fixed position on a to-be-connected piece, so that the relative position of the skin plate and the to-be-connected piece is fixed, the buckle is fixedly arranged at one end of the skin plate, an opening which can be matched and connected with the end face of the to-be-connected piece is formed in the buckle, and the skin plate can be fixedly connected on the to-be-connected piece by matching the opening in the buckle with the end face of the to-be-connected piece. By using the skin structure and the skin mounting and dismounting method, the skin mounting and dismounting process can be rapidly completed, the connected structure is more stable and reliable, seamless connection can be realized, and the mounting size is ensured.

Description

Skin structure and skin mounting and dismounting method

Technical Field

The invention belongs to the technical field of aerospace, and particularly relates to a skin structure and a skin mounting and dismounting method.

Background

The skin has wide application in the field of aerospace, and in view of the characteristics of the skin, the skin is mainly installed by mechanical connection such as riveting and bolt connection or by adhesive bonding, and is mainly widely applied to aircrafts such as various airplanes and the like.

The traditional skin connection mode mainly has the following defects:

1. the riveting increases the weight of the whole structure, reduces the strength of the skin, easily causes the damage of the skin and reduces the fatigue resistance of the skin.

2. Although the bolt connection is suitable for places with higher strength requirements, the operation is complex, tools such as a wrench are needed, and for some products, the types and the number of fasteners such as bolts are too large, so that the working complexity is increased, the difference rate is higher, and the overall weight of the mechanism is also increased.

3. Riveting and bolting are not suitable for the occasions where the skin needs to be quickly disassembled, which results in difficult disassembly, increased cost and reduced assembly efficiency.

Disclosure of Invention

The present invention is directed to solving at least one of the problems set forth above, and the object is achieved by the following means.

The invention provides a skin structure, which comprises a skin plate, a buckle and a positioning piece, wherein the positioning piece is fixedly arranged on the skin plate, the positioning piece can be matched and connected with a fixed position on a to-be-connected piece, so that the relative position of the skin plate and the to-be-connected piece is fixed, the buckle is fixedly arranged at one end of the skin plate, an opening which can be matched and connected with the end surface of the to-be-connected piece is arranged on the buckle, and the skin plate can be fixedly connected on the to-be-connected piece by matching the opening on the buckle with the end surface of the to-be-connected piece.

Furthermore, the buckle is vertically arranged on the bottom surface of the skin plate, and a square opening is arranged on the side surface of the buckle matched with the end surface of the to-be-connected piece.

Furthermore, the positioning piece is of a truncated cone-shaped structure and is vertically arranged on the bottom surface of the skin plate.

Further, the setting element with the buckle is fixed to be located through the mode of gluing the bottom of skin board.

Further, still include locking matched set and location matched set, treat the connecting piece including treating the connecting piece body, locking matched set is fixed to be located treat the tip of connecting piece body, locking matched set's terminal surface can with the opening accordant connection of buckle, location matched set is fixed to be located treat the connecting piece on the fixed position, be equipped with the through-hole on the location matched set, the through-hole on the location matched set can with setting element accordant connection, thereby will the skin board with treat that the relative position of connecting piece fixes.

Furthermore, the locking matching part and the positioning matching part are fixedly arranged on the body of the to-be-connected piece in a gluing mode.

The invention also provides a method for installing the skin, which is used for installing the skin according to the skin structure and comprises the following steps:

fixing the buckle and the positioning piece on the skin plate;

matching and connecting the positioning piece with the fixing position of the to-be-connected piece;

and applying force along the mounting direction of the buckle until the buckle is fixedly connected with the end face of the to-be-connected piece, so as to finish skin mounting.

Further, the mounting method of the skin further comprises the following steps:

and fixedly mounting the locking matching part on the end surface of the body of the to-be-connected piece, and fixedly mounting the positioning matching part on the fixed position of the to-be-connected piece.

Furthermore, the mounting method of the skin further comprises the steps of fixing the buckle and the positioning piece on the skin plate and fixing the positioning matching set and the locking matching set on the body of the piece to be connected and then positioning by using the same tool.

The invention also provides a method for disassembling the skin, which is used for disassembling the skin according to the skin structure and comprises the following steps:

applying force along the direction of the buckle towards the end face of the body to be connected until the buckle is disengaged from the end face of the body to be connected;

and applying force along the direction that the skin plate is far away from the body of the to-be-connected piece until the positioning piece is separated from the matching of the positioning matching piece, and finishing the dismounting process.

By using the skin structure and the skin mounting and dismounting method, the skin mounting and dismounting process can be rapidly completed, the connected structure is more stable and reliable, seamless connection can be realized, the mounting size is ensured, and the strength requirement of repeated dismounting can be met.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is an assembled overall structure of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the overall structure of the skin structure in the embodiment of FIG. 1;

fig. 3 is a schematic overall structure diagram of the first member to be connected in the embodiment of fig. 1;

FIG. 4 is a schematic structural view of a first positioning kit in the embodiment of FIG. 1;

FIG. 5 is an assembled overall structure of another embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating the overall structure of the skin structure in the embodiment of FIG. 5;

FIG. 7 is a schematic view of the second member to be connected in the embodiment of FIG. 5;

FIG. 8 is a flow chart for skin attachment using the embodiment of FIG. 1.

The reference symbols in the drawings denote the following:

11: first skin sheet, 12: first buckle, 13: a first positioning member;

11': second skin sheet, 12': second snap, 13': a second positioning member;

20: first to-be-connected component, 20': a second member to be connected;

21: first connector body to be connected, 22: first locking fitting kit, 23: a first locating kit;

21': second body to be connected, 22': second locking kit, 23': a second locating kit.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Fig. 1 is an overall structure diagram of an assembled device according to an embodiment of the present invention. Fig. 2 is a schematic overall structural diagram of the skin structure in the embodiment of fig. 1. Fig. 3 is a schematic overall structure diagram of the first member to be connected in the embodiment of fig. 1. Fig. 4 is a schematic structural diagram of the first positioning kit in the embodiment of fig. 1. The skin structure in this embodiment includes first skin panel 11, first buckle 12 and first locating piece 13, first locating piece 13 is fixed to be located on first skin panel 11, first locating piece 13 can with the first fixed position accordant connection who waits on the connecting piece 20, thereby fix first skin panel 11 with the first relative position who waits for connecting piece 20, first buckle 12 is fixed to be located the one end of first skin panel 11, be equipped with on the first buckle 12 can with the first opening of waiting for the terminal surface accordant connection of connecting piece 20, can be with first skin panel 11 fixed connection on the first connecting piece 20 through the opening with on the first buckle 12 and the terminal surface phase-match that waits for connecting piece 20.

As shown in the figure, first treating connecting piece 20 includes first treating connecting piece body 21, first treating and being equipped with first lock-fit external member 22 and first location on the connecting piece body 21 and joining in marriage external member 23, first lock-fit external member 22 is fixed and is located the first tip of treating connecting piece body 21, the terminal surface of first lock-fit external member 22 can with the opening accordant connection of first buckle 12, first location joins in marriage external member 23 and is fixed and locate first treating connecting piece body 20 on, be equipped with the through-hole on the external member 23 is joined in marriage in first location, through-hole on the external member 23 is joined in marriage in first location can with first locating piece 13 accordant connection, thereby fix first skin board 11 and the relative position of first treating connecting piece 20. Wherein, the first positioning piece 13 and the first buckle 12 are fixed at the bottom of the first skin plate 11 by gluing. The first locking fitting set 22 and the first positioning fitting set 23 are fixedly arranged on the first to-be-connected member body 21 in a gluing mode.

Further, the first buckle 12 is vertically disposed on the bottom surface of the first skin plate 11, and a square opening is disposed on a side surface of the first buckle 12, which is matched with the end surface of the first to-be-connected component 20.

The first buckle 12 can be a buckle with different shapes, specially customized or standard according to design requirements and structural characteristics. First buckle 12 adopts aluminum alloy material to make, has easy operation, and good reproducibility, increase of service life's advantage such as.

Because the end fixing of the first body 21 of waiting to connect is equipped with first lock cooperation external member 22, the direction opening on the first buckle 12 can be connected with the terminal surface of first lock cooperation external member 22 mutually supporting to with first skin 11 fixed connection on the first body 21 of waiting to connect.

Further, the first positioning member 13 is a truncated cone shaped structure and is vertically disposed on the bottom surface of the first skin panel 11.

The relative position of the first skin panel 11 and the first part to be connected 20 is fixed by inserting the first positioning element 13 into a through hole of a first positioning fitting 23 to which it can be fitted.

For the connection of large composite material skins, a plurality of buckles can be arranged on the skin plates, and a plurality of end faces which can be matched with the buckles are arranged on the corresponding locking matching pieces.

Fig. 5 is an assembled overall structure diagram of another embodiment of the present invention. Fig. 6 is a schematic overall structure diagram of the skin structure in the embodiment of fig. 5. Fig. 7 is a schematic view of the overall structure of the second member to be connected in the embodiment of fig. 5.

As shown in the drawings, the skin structure in this embodiment includes a second skin panel 11 ', a plurality of second positioning members 13' and a plurality of second buckles 12 ', the second to-be-connected component 20' includes a second to-be-connected component body 21 ', and the second to-be-connected component body 20' is provided with a second positioning kit 23 'capable of being respectively matched with the plurality of second positioning members 13' and a plurality of second locking kits 22 'capable of being respectively matched with the plurality of second buckles 12'. The second positioning member 13 'is inserted into the through hole of the second positioning matching member 23', so that the mutual positions of the second skin plate 11 'and the second to-be-connected member body 21' are fixed, and the end surfaces of the second buckle 12 'and the second locking matching member 22' are matched to complete the fixed connection between the second skin plate 11 'and the second to-be-connected member body 21'.

FIG. 8 is a flow chart for skin attachment using the embodiment of FIG. 1. The skin installation is carried out according to the skin structure, and the method comprises the following steps:

the first buckle 12 and the first positioning member 13 are fixed to the first skin panel 11.

The first buckle 12 and the first positioning piece 13 are fixed on the first skin plate 11 in a gluing mode, and are positioned on the tool. The glue brushing amount is determined according to the glue brushing area, so that excessive glue is avoided.

The first positioning element 13 is connected in a matching manner to the fastening position of the first part to be connected 20.

The first to-be-connected component 20 comprises a first to-be-connected component body 21, and a first positioning matching kit 23 and a first locking matching kit 22 are arranged on the first to-be-connected component body 21. The first locking fitting set 22 is fixed at the end of the first connector body 21 in a gluing manner, and the first positioning fitting set 23 is fixed at a fixed position of the first connector body 21 to be connected in a gluing manner. After bonding, the first positioning matching set 23 and the first locking matching set 22 need to be positioned on the tool. Wherein, this location frock should be the same with the location frock of first buckle 12 and first locating piece 13, guarantees positioning accuracy. The first to-be-connected part body 21 is prevented from moving due to the fact that the adhesive is not dried.

After the first positioning matching sleeve member 23 and the first locking matching sleeve member 22 are bonded and fixed, the first positioning member 13 is inserted into the through hole of the first positioning matching sleeve member 23, and the relative position fixing of the first skin plate 11 and the first body member 21 to be connected is completed.

And applying force along the installation direction of the first buckle 12 until the first buckle 12 is fixedly connected with the end surface of the first part to be connected 20, so as to complete the skin installation.

The installation in-process is applyed and is wanted evenly, prevents that the loading direction of power from taking place the skew, causes the damage of first buckle.

force is applied along the first buckle 12 in the direction opposite to the end face of the first body 21 to be connected until the first buckle 12 is disengaged from the end face of the first body 21 to be connected.

After the first buckle 12 is separated from the matching with the end face of the first body 21 to be connected, force is continuously applied along the direction in which the first skin plate 11 is far away from the first body 21 to be connected until the first positioning piece 13 is separated from the matching with the first positioning matching piece 23, and the dismounting process is completed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A skin structure is characterized by comprising a skin plate, a buckle and a positioning piece, wherein the positioning piece is fixedly arranged on the skin plate and can be matched and connected with a fixed position on a to-be-connected piece, so that the relative position of the skin plate and the to-be-connected piece is fixed, the buckle is fixedly arranged at one end of the skin plate, an opening which can be matched and connected with the end surface of the to-be-connected piece is arranged on the buckle, and the skin plate can be fixedly connected on the to-be-connected piece by matching the opening on the buckle with the end surface of the to-be-connected piece;

the positioning piece is of a truncated cone-shaped structure and is vertically arranged on the bottom surface of the skin plate;

the positioning piece and the buckle are fixedly arranged at the bottom of the skin plate in a gluing mode;

the connecting piece to be connected comprises a body of the connecting piece to be connected, the locking matching piece is fixedly arranged at the end part of the body of the connecting piece to be connected, the end face of the locking matching piece can be matched and connected with the opening of the buckle, the positioning matching piece is fixedly arranged at the fixed position of the connecting piece to be connected, a through hole is formed in the positioning matching piece, and the through hole in the positioning matching piece can be matched and connected with the positioning piece, so that the relative position of the skin plate and the connecting piece to be connected is fixed;

the locking matching set and the positioning matching set are fixedly arranged on the body of the to-be-connected piece in a gluing mode.

2. The skin structure of claim 1, wherein the buckle is vertically disposed on a bottom surface of the skin panel, and a side surface of the buckle that is engaged with the end surface of the member to be connected is provided with a square opening.

3. A method of skin installation according to the skin structure of any one of claims 1-2, comprising the steps of:

fixing the buckle and the positioning piece on the skin plate, wherein the buckle and the positioning piece are fixedly connected with the skin plate in an adhesive manner;

4. The skin installation method of claim 3, further comprising the steps of:

and fixedly installing the locking matching part on the end surface of the body of the to-be-connected piece, and fixedly installing the positioning matching part on the fixed position of the to-be-connected piece.

5. The skin installation method according to claim 3, wherein the buckle and the positioning member are fixedly arranged on the skin plate, and the positioning kit and the locking kit are fixedly arranged on the body of the member to be connected and then positioned by using the same tool.

6. A method for skin disassembly according to the skin structure of any one of claims 1-2, comprising the steps of: