Adhesive tape pasting and fixing device for aviation structure strength test

Abstract

The invention belongs to the field of aviation structure strength tests, and particularly relates to an adhesive tape pasting and fixing device for aviation structure strength tests. The device comprises a pressing lug fork, a pressing plate and a pressing lug fork, wherein the pressing lug fork is provided with the pressing plate; the first end of the pressure sensor is connected with the pressing direction ear fork through a universal ball joint; the first end of the adjustable pressure rod is fixedly connected with the second end of the pressure sensor; and the base is hinged with the second end of the adjustable pressure rod. According to the adhesive tape pasting and fixing device for the aviation structural strength test, quantitative, continuous and uniform pressing force can be provided for the adhesive tape; the pressure and the angle can be adjusted, and the space is not limited; the structure is simple, implementation is easy, and simple machining production can be achieved.

Description

Technical Field

[0001] The present application belongs to the field of aviation structure strength test, and in particular relates to a tape sticking and fixing device for aviation structure strength test. Background Art

[0002] In the static strength and fatigue strength tests of aviation structures, tape is often used to load distributed loads. When the tape is pasted, it is necessary to continuously apply a force perpendicular to the surface to the tape while waiting for the adhesive to solidify to ensure the quality of pasting. For the pasting of tape vertically downward, pressure can be applied directly by heavy objects, but it is quite difficult to continuously apply pressure to tape vertically upward. The existing method is to paste the tape by drawing negative pressure, but this method is complicated and subject to greater space constraints.

[0003] Therefore, it is desired to have a technical solution to overcome or at least alleviate at least one of the above-mentioned defects of the prior art. Summary of the invention

[0004] The purpose of the present application is to provide a tape sticking and fixing device for aviation structure strength testing to solve at least one problem existing in the prior art.

[0005] The technical solution of this application is:

[0006] A device for sticking and fixing adhesive tape used for aviation structure strength test, comprising:

[0007] A pressing ear fork, wherein the pressing ear fork is provided with a pressing plate;

[0008] A pressure sensor, wherein a first end of the pressure sensor is connected to the pressure ear fork via a spherical universal joint;

[0009] An adjustable pressure rod, a first end of which is fixedly connected to a second end of the pressure sensor;

[0010] A base is hinged to the second end of the adjustable pressure rod.

[0011] In at least one embodiment of the present application, the pressing ear fork includes an ear fork portion and a connecting portion, wherein:

[0012] The ear fork portion includes a plurality of ear fork portions, the plurality of ear fork portions are arranged in parallel on the connecting portion, and the pressing plate is arranged on the ear fork portion;

[0013] The connecting portion is provided with a spherical groove for installing the spherical universal joint.

[0014] In at least one embodiment of the present application, a plastic film is provided between the pressure plate and the contact surface of the adhesive tape.

[0015] In at least one embodiment of the present application, the adjustable pressure rod includes a threaded rod and a threaded barrel connected by threads.

[0016] In at least one embodiment of the present application, the adjustable pressure rod includes a hydraulic rod and a hydraulic cylinder driven by a hydraulic mechanism.

[0017] In at least one embodiment of the present application, the base includes a positioning portion and two ears arranged on the positioning portion, wherein:

[0018] The positioning portion is fixed to the ground;

[0019] The double ears are hinged to the single ear at the second end of the adjustable pressure rod.

[0020] The invention has at least the following beneficial technical effects:

[0021] The adhesive tape sticking and fixing device for aviation structure strength test of the present application can provide a quantitative, continuous and uniform compressive force to the adhesive tape; the pressure and angle can be adjusted, and the space is not limited; the structure is simple, easy to implement, and can be produced by simple mechanical processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an overall schematic diagram of a device for sticking and fixing adhesive tape used for aviation structure strength testing according to one embodiment of the present application;

[0023] Figure 2 It is a cross-sectional view of a device for sticking and fixing adhesive tape used for aviation structure strength test according to one embodiment of the present application;

[0024] Figure 3 is a schematic diagram of a pressing ear fork according to an embodiment of the present application;

[0025] Figure 4 yes Figure 2 Enlarged view of part B.

[0026] in:

[0027] 1-pressing ear fork; 2-pressure sensor; 3-adjustable pressure rod; 4-base. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the embodiment of this application will be described in more detail below in conjunction with the drawings in the embodiment of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of this application, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain this application, and should not be construed as limitations on this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of this application are described in detail below in conjunction with the drawings.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present application.

[0030] The following is combined with Figures 1 to 4 This application is described in further detail.

[0031] The present application provides a device for sticking and fixing adhesive tape for aviation structure strength testing, comprising: a pressure ear fork 1, a pressure sensor 2, an adjustable pressure rod 3 and a base 4.

[0032] like Figure 1 , 2 As shown, a pressure plate is provided on the pressure ear fork 1, and the pressure plate is used to apply a pressure force to the adhesive tape; the adjustable pressure rod 3 is connected to the pressure ear fork 1 through a pressure sensor 2, and the pressure sensor 2 is connected to the pressure ear fork 1 through a spherical universal joint, the pressure sensor 2 is connected to the adjustable pressure rod 3 by a fixed connection, and the base 4 is hinged to the adjustable pressure rod 3.

[0033] In a preferred embodiment of the present application, the ear pressing fork 1 can be designed according to the shape of the tape, so as to ensure that the pressing force applied to the tape is uniform. Figure 3 , 4As shown, in this embodiment, the pressing ear fork 1 includes an ear fork portion and a connecting portion, wherein the ear fork portion includes multiple, for example, three, multiple ear fork portions are arranged in parallel on the connecting portion, and a pressing plate is arranged on the ear fork portion, and the pressing plates on the multiple ear fork portions are also arranged in parallel; a spherical groove for installing a spherical universal joint is provided on the connecting portion, and the spherical universal joint can be installed to adapt to the angle change of the bonding surface, ensuring that the pressing force is always perpendicular to the bonding surface. When in use, the contact surface between the pressing plate of the pressing ear fork 1 and the adhesive tape is covered with a plastic film to prevent adhesion.

[0034] In a preferred embodiment of the present application, the length of the adjustable pressure rod 3 is adjustable, and the length can be adjusted by a threaded structure or a hydraulic mechanism. In one embodiment of the present application, the adjustable pressure rod 3 includes a threaded rod and a threaded cylinder connected by threads. In another embodiment of the present application, the adjustable pressure rod 3 includes a hydraulic rod and a hydraulic cylinder driven by a hydraulic mechanism. The adjustable pressure rod 3 is connected to the pressure sensor 2, and the compressive force can be quantitatively adjusted by the adjustable pressure rod 3.

[0035] In a preferred embodiment of the present application, the base 4 includes a positioning portion and two ears arranged on the positioning portion, the positioning portion is fixed to the ground; the two ears are hinged to the single ear at the second end of the adjustable pressure rod 3. The base 4 can be used to be fixed on the ground or a platform as a fulcrum, and the base 4 is connected to the adjustable pressure rod 3 in a hinged manner, which can provide a certain rotation angle.

[0036] The adhesive tape sticking and fixing device for aviation structure strength test of the present application is suitable for static strength and fatigue strength tests of aviation structures by applying distributed loads through adhesive tape. Before the test starts, the uncured adhesive tape is fixed to ensure the bonding strength of the adhesive tape.

[0037] The adhesive tape sticking and fixing device for aviation structure strength test of the present application can provide a quantitative, continuous and uniform compressive force to the adhesive tape; the pressure and angle can be adjusted, and the space is not limited; the structure is simple, easy to implement, and can be produced by simple mechanical processing.

[0038] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A tape sticking and fixing device for aviation structure strength test, characterized in that: include: A pressing ear fork (1), wherein a pressing plate is provided on the pressing ear fork (1); A pressure sensor (2), wherein a first end of the pressure sensor (2) is connected to the pressure ear fork (1) via a spherical universal joint; An adjustable pressure rod (3), wherein a first end of the adjustable pressure rod (3) is fixedly connected to a second end of the pressure sensor (2); A base (4), wherein the base (4) is hinged to the second end of the adjustable pressure rod (3).

2. The adhesive tape sticking and fixing device for aviation structure strength test according to claim 1 is characterized in that: The pressing ear fork (1) comprises an ear fork portion and a connecting portion, wherein: The ear fork portion includes a plurality of ear fork portions, the plurality of ear fork portions are arranged in parallel on the connecting portion, and the pressing plate is arranged on the ear fork portion; The connecting portion is provided with a spherical groove for installing the spherical universal joint.

3. The adhesive tape sticking and fixing device for aviation structure strength test according to claim 2 is characterized in that: A plastic film is arranged between the pressing plate and the contact surface of the adhesive tape.

4. The adhesive tape sticking and fixing device for aviation structure strength test according to claim 1 is characterized in that: The adjustable pressure rod (3) comprises a threaded rod and a threaded barrel which are connected by threads.

5. The adhesive tape sticking and fixing device for aviation structure strength test according to claim 1 is characterized in that: The adjustable pressure rod (3) comprises a hydraulic rod and a hydraulic cylinder driven by a hydraulic mechanism.

6. The adhesive tape sticking and fixing device for aviation structure strength test according to claim 1, characterized in that: The base (4) comprises a positioning portion and two ears arranged on the positioning portion, wherein: The positioning portion is fixed to the ground; The double ears are hinged to the single ear at the second end of the adjustable pressure rod (3).

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