Special fixture for aircraft panel structure load simulation experiment

Abstract

The utility model provides a special fixture for a load simulation experiment of an aircraft panel structure, which relates to the technical field of aircraft component detection, and is characterized in that: 1) the special fixture respectively clamps two opposite side edges of the panel structure through a horizontally arranged bottom plate and a plurality of clamping pieces on two support frames vertically arranged on the bottom plate; the relative distance between the supporting frames can be changed so as to adapt to wallboard structures with different widths; the clamping pieces can slide up and down along the supporting frame through the first sliding blocks, different clamping positions of the wallboard structures can be changed, the applicability of the clamp is improved, and the wallboard structures with different lengths can be clamped by changing the number of the clamping pieces on the supporting frame; and (3) the clamping piece clamps the two sides of the wallboard structure through the fixed plate and the movable plate, flexible clamping assemblies are arranged on the opposite faces of the movable plate and the fixed plate correspondingly, the fixture can be suitable for the wallboard structures with different thicknesses and radians, the universality of the fixture is improved, repeated design of the fixture is avoided, efficiency is improved, and cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of aircraft component testing technology, and more specifically, to a special fixture for simulating loads on aircraft panel structures. Background Technology

[0002] Aircraft are subjected to enormous loads during flight, therefore, all components of an aircraft need to have strong compressive strength. Expansion panels are commonly used structural components among aircraft, and they have different shapes depending on the actual situation. When conducting load simulation experiments on aircraft expansion panels, special fixtures can only be used for expansion panel structures of the same specification and cannot meet the testing requirements of expansion panel structures of other shapes and specifications. When conducting experiments on expansion panels of different shapes of aircraft, different fixtures need to be designed, which is costly and inefficient. Utility Model Content

[0003] The purpose of this invention is to address the problems in the prior art by providing a special fixture for simulating the load on aircraft panel structures, which is applicable to panel structures of different shapes and specifications, thereby reducing costs and improving efficiency.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] This utility model provides a special fixture for simulating the load of an aircraft panel structure, including a horizontally arranged base plate and two vertically arranged support frames on the base plate. The opposing surfaces of the two support frames are respectively provided with a number of clamping members, which are used to clamp the two opposite sides of the panel structure.

[0006] The clamping member includes a connecting plate, and a fixed plate and a movable plate are respectively provided on two sides of the connecting plate opposite to the wall panel structure. The movable plate moves closer to or further away from the fixed plate through a moving structure to clamp the wall panel structure between the fixed plate and the movable plate.

[0007] Flexible clamping components are respectively provided on the opposite surfaces of the movable plate and the fixed plate.

[0008] Optionally, the flexible clamping assembly includes a plurality of first sliding grooves arranged in an array, a first sliding rod slidably disposed in the first sliding groove, the first sliding rod and the bottom of the first sliding groove being connected by a first spring, and a flexible block disposed at the end of the first sliding rod away from the first spring, the flexible block being used to contact the two sides of the wall panel structure.

[0009] Optionally, the moving structure includes:

[0010] Several third slide rails are provided on the connecting plate;

[0011] Several third sliders are disposed on the movable plate relative to the third slide rails, and the third sliders slide within the corresponding third slide rails.

[0012] A first screw is disposed in one of the third slides, and the first screw passes through and is hinged to the corresponding third slider.

[0013] An electric motor is connected to one end of the first screw to drive the movable plate to move.

[0014] Optionally, the support frame is provided with a vertically extending first slide rail on the side facing the clamping member, and the clamping member slides within the first slide rail via a first slider;

[0015] Multiple corresponding fixing structures are respectively provided on the two side walls of the first slider and the first slide rail to fix the first slider at different positions in the first slide rail.

[0016] Optionally, the fixing structure includes:

[0017] The second slide rail is disposed on the inner side of the side wall and the side of the first slider;

[0018] The second slider is slidably disposed within the second slide rails on both sides of the first slider;

[0019] Multiple second slide bars are provided at the bottom of the second slide rail;

[0020] Multiple second slide grooves are provided, and the second slide grooves are disposed on the second slider corresponding to the second slide rods, and the second slide rods slide within the corresponding second slide grooves;

[0021] Multiple second springs are sleeved on the second slide rod and abut against the opposite surfaces of the second slide rail and the second slider.

[0022] A second screw, one end of which passes through the sidewall and is hinged to the sidewall;

[0023] A clamping block is disposed at the inner end of the second screw and placed within the second slide rail;

[0024] A handle is provided at the outer end of the second screw and is used to drive the clamping block to block the opening of the second slide rail on the inner side of the side wall. The second slider is located in the second slide rail on the side of the first slider. Alternatively, the clamping block is driven to be placed in the second slide rail on the inner side of the side wall so that the second slider slides into the second slide rail on the inner side of the side wall.

[0025] Optionally, the first slider has protrusions extending outward from the opening of the first slide rail on both sides, and the cross-sectional shapes of the first slide rail and the first slider are matched.

[0026] Optionally, a receiving cavity is formed within the clamping block, and one end of the second screw passes through the clamping block and extends into the receiving cavity where a stop is provided. The stop is movably installed within the receiving cavity to drive the second screw to rotate relative to the clamping block via the handle.

[0027] The beneficial effects of this utility model's special fixture for simulating the load on aircraft panel structures include: 1) This utility model uses a horizontally arranged base plate and several clamping components mounted on two vertical support frames on the base plate to clamp the two opposite sides of the panel structure. The relative distance between the support frames can be changed to accommodate panel structures of different widths; 2) The clamping components can slide up and down along the support frames via a first slider, changing the clamping position on the panel structure and improving the fixture's applicability. Changing the number of clamping components on the support frames allows for clamping panel structures of different lengths; 3) The clamping components use a fixed plate and a movable plate to clamp both sides of the panel structure. Flexible clamping components are provided on the opposite surfaces of the movable plate and the fixed plate, making it suitable for panel structures of different thicknesses and curvatures. This utility model can handle panel structures of different shapes and specifications, flexibly adjusting the height, width, and thickness of the fixture to ensure experimental accuracy, improve the fixture's versatility, avoid repeated fixture design, improve efficiency, and reduce costs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of a special fixture for simulating loads on aircraft panel structures provided in this application embodiment;

[0030] Figure 2 This is one of the structural schematic diagrams of a support frame for a special fixture for simulating loads on aircraft panel structures, provided in an embodiment of this application.

[0031] Figure 3 A second schematic diagram of the support frame of a special fixture for simulating loads on aircraft panel structures, provided in an embodiment of this application;

[0032] Figure 4 Provided for the embodiments of this application Figure 1 Enlarged structural diagram at point A;

[0033] Figure 5 Provided for the embodiments of this application Figure 2 Enlarged structural diagram at point C;

[0034] Figure 6 Provided for the embodiments of this application Figure 2 Enlarged structural diagram at point B;

[0035] Figure 7 This is one of the structural schematic diagrams of the clamping component of a special fixture for simulating the load on an aircraft panel structure, provided in an embodiment of this application.

[0036] Figure 8 A second schematic diagram of the clamping component of a special fixture for simulating loads on aircraft panel structures provided in this application embodiment;

[0037] Figure 9 Provided for the embodiments of this application Figure 8 Enlarged structural diagram at point D.

[0038] Icons: 10, base plate; 20, support frame; 210, first slide rail; 220, side wall; 221, second slide rail; 230, first screw; 231, handle; 232, clamping block; 233, stop block; 234, receiving cavity; 30, clamping component; 310, first slider; 311, second slider; 312, second slide groove; 313, second spring; 314, second slide rod; 315, protrusion; 320, connecting plate; 321, third slide rail; 330, movable plate; 331, third slider; 340, fixed plate; 350, motor; 351, second screw; 360, clamping assembly; 361, first spring; 362, first slide rod; 363, flexible block; 364, first slide groove. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. It should be noted that, without conflict, the various features in the embodiments of this application can be combined with each other, and the combined embodiments are still within the protection scope of this application.

[0040] When conducting load simulation experiments on aircraft panel structures, dedicated fixtures can only be used for panel structures of the same specification and cannot meet the testing requirements for panel structures of other shapes and specifications. When conducting experiments on panel structures of different shapes on aircraft, different fixtures need to be designed, which is costly and inefficient. To solve the above problems, this application provides a dedicated fixture for load simulation experiments on aircraft panel structures, which can be applied to panel structures of different shapes and specifications, reducing costs and improving efficiency.

[0041] like Figure 1 As shown, Embodiment 1 of this application provides a special fixture for simulating the load of an aircraft panel structure, including a horizontally arranged base plate 10 and two vertically arranged support frames 20 on the base plate 10. The opposing surfaces of the two support frames 20 are respectively provided with a plurality of clamping members 30, which are used to clamp the two opposing sides of the panel structure. The clamping member 30 includes a connecting plate 320. The two opposing sides of the connecting plate 320 are respectively provided with a fixed plate 340 and a movable plate 330. The movable plate 330 moves closer to or further away from the movable plate 330 to clamp the panel structure between the fixed plate 340 and the movable plate 330. The opposing surfaces of the movable plate 330 and the fixed plate 340 are respectively provided with flexible clamping components 360. In this embodiment, a horizontally arranged base plate 10 and several clamping members 30 on two vertically arranged support frames 20 on the base plate 10 respectively clamp the two opposite sides of the wall panel structure. By fixing the support frames 20 at different positions on the base plate 10, the relative distance between the support frames 20 can be changed to adapt to wall panel structures of different widths.

[0042] Specifically, such as Figure 7 , Figure 8 and Figure 9 As shown, the flexible clamping assembly 360 includes a plurality of first sliding grooves 364 arranged in an array. A first sliding rod 362 is slidably disposed within each first sliding groove 364. The bottoms of the first sliding rods 362 and the first sliding grooves 364 are connected by a first spring 361. A flexible block 363 is disposed at the end of the first sliding rod 362 away from the first spring 361, and the flexible block 363 is used to contact the two sides of the wall panel structure. In this embodiment, the clamping member 30 clamps both sides of the wall panel structure through a fixed plate 340 and a movable plate 330. Flexible clamping assemblies 360 are respectively disposed on the opposite surfaces of the movable plate 330 and the fixed plate 340, making it suitable for wall panel structures of different thicknesses and curvatures.

[0043] Specifically, such as Figure 4 and Figure 5As shown, the movable structure includes: a plurality of third slide rails 321, which are disposed on the connecting plate 320; a plurality of third sliders 331, which are disposed on the movable plate 330 relative to the third slide rails 321 and slide within the corresponding third slide rails 321; a first screw 351, which is disposed within one of the third slide rails 321 and passes through and is hinged to the corresponding third slider 331; and a motor 350, which is connected to one end of the first screw 351 to drive the movable plate 330 to move so as to clamp the wall panel structure between the fixed plate 340 and the movable plate 330.

[0044] Specifically, such as Figure 2 and Figure 3 As shown, the support frame 20 has a vertically extending first slide rail 210 on the side facing the clamping member 30. The clamping member 30 slides within the first slide rail 210 via a first slider 310. Multiple corresponding fixing structures are respectively provided on the side walls 220 of the first slider 310 and the first slide rail 210 to fix the first slider 310 at different positions within the first slide rail 210. In this embodiment, the clamping member 30 can slide up and down along the support frame 20 via the first slider 310, changing the clamping position on the wall panel structure and improving the applicability of the clamp. By changing the number of clamping members 30 on the support frame 20, wall panel structures of different lengths can be clamped.

[0045] Specifically, such as Figure 6As shown, the fixing structure includes: a second slide rail 221, which is disposed on the inner side of the side wall 220 and the side of the first slider 310; a second slider 311, which is slidably disposed within the second slide rail 221 on both sides of the first slider 310; a plurality of second slide rods 314, which are disposed at the bottom of the second slide rail 221; a plurality of second slide grooves 312, which are disposed on the second slider 311 corresponding to the second slide rods 314, and the second slide rods 314 slide within the corresponding second slide grooves 312; and a plurality of second springs 313, which are sleeved on the second slide rods 314 and abut against the second slide rail 221 and the second slider 310. Between the opposite faces of 1; a second screw 230, one end of which passes through the side wall 220 and is hinged to the side wall 220; a clamping block 232, which is disposed at the inner end of the second screw 230 and placed in the second slide rail 221; a handle 231, which is disposed at the outer end of the second screw 230 and is used to drive the clamping block 232 to block the opening of the second slide rail 221 on the inner side of the side wall 220, and the second slider 311 is located in the second slide rail 221 on the side of the first slider 310, or, the clamping block 232 is driven to be placed in the second slide rail 221 on the inner side of the side wall 220, so that the second slider 311 slides into the second slide rail 221 on the inner side of the side wall 220. When using the clamp, determine the position where the clamping member 30 needs to be fixed, and unscrew the second screw 230 through the corresponding handle 231. Place the clamping block 232 at the bottom of the second slide 221 inside the side wall 220, and block the opening of the second slide 221 inside the side wall 220 with the remaining clamping blocks 232. When the first slider 310 slides in the first slide 210, the second slider 311 can slide into the corresponding second slide 221 inside the side wall 220, fixing the first slider 310 at the corresponding position of the first slide 210.

[0046] In this embodiment, the second slide rail 221 on the side of the second slider 311 and the first slider 310 is connected by a second slide groove 312, a second spring 313, and a second slide rod 314. This allows the second slider 311 to rest against the clamping block 232 during the sliding process of the first slider 310, preventing the first slider 310 from falling rapidly and causing damage. To prevent the second slider 311 from jamming during sliding, the second slider 310 has a chamfer.

[0047] Specifically, such as Figure 3 As shown, the first slider 310 has protrusions 315 extending outward from the opening of the first slide rail 210 on both sides. The cross-sectional shapes of the first slide rail 210 and the first slider 310 are matched to prevent the first slider 310 from falling out of the opening of the first slide rail 210.

[0048] Specifically, a receiving cavity 234 is formed inside the clamping block 232. One end of the second screw 230 passes through the clamping block 232 and extends into the receiving cavity 234. A stop block 233 is provided inside the receiving cavity 234. The stop block 233 is movably installed inside the receiving cavity 234 so as to drive the second screw 230 to rotate relative to the clamping block 232 through the handle 231.

[0049] During the installation of the wall panel structure, the relative distance between the support frame 20 and the base plate 1 is adjusted according to the dimensions of the wall panel structure. The position and quantity of the clamping components 30 are set according to specific experimental requirements and fixed using a fixing structure to complete the installation of the clamps. The wall panel structure is inserted between the fixed plate 340 and the movable plate 330, and the motor 350 is controlled to clamp the fixed plate 340 and the movable plate 330 to hold the wall panel structure. A corresponding load simulation test is then conducted on the wall panel structure, and the corresponding test results are recorded.

[0050] This application provides a special fixture for simulating loads on aircraft panel structures. It can handle panel structures of different shapes and specifications, and flexibly adjust the height, width, and thickness of the fixture to ensure the accuracy of the experiment, improve the versatility of the fixture, avoid repeated design of the fixture, improve efficiency, and reduce costs.

[0051] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A special fixture for simulating the load on an aircraft panel structure, comprising a horizontally arranged base plate (10) and two vertically arranged support frames (20) on the base plate (10), characterized in that, The two support frames (20) are provided with a number of clamping members (30) on their opposite sides, which are used to clamp the two opposite sides of the wall panel structure respectively; The clamping member (30) includes a connecting plate (320). The connecting plate (320) has a fixed plate (340) and a movable plate (330) respectively on two sides opposite to the wall panel structure. The movable plate (330) moves closer to or further away from the fixed plate (340) through a moving structure to clamp the wall panel structure between the fixed plate (340) and the movable plate (330). Flexible clamping components (360) are respectively provided on the opposite surfaces of the movable plate (330) and the fixed plate (340).

2. The special fixture for simulating the load on aircraft panel structures according to claim 1, characterized in that, The flexible clamping assembly (360) includes a plurality of first slide grooves (364) arranged in an array. A first slide rod (362) is slidably disposed in the first slide groove (364). The bottom of the first slide rod (362) and the first slide groove (364) are connected by a first spring (361). A flexible block (363) is disposed at the end of the first slide rod (362) away from the first spring (361). The flexible block (363) is used to contact the two sides of the wall panel structure.

3. The special fixture for simulating the load on aircraft panel structures according to claim 1, characterized in that, The movable structure includes: A plurality of third slide rails (321) are provided on the connecting plate (320); A plurality of third sliders (331) are disposed on the movable plate (330) relative to the third slide rail (321), and the third sliders (331) slide within the corresponding third slide rail (321); A first screw (351) is disposed in one of the third slide rails (321), and the first screw (351) passes through and is hinged to the corresponding third slider (331); A motor (350) is connected to one end of the first screw (351) to drive the movable plate (330) to move.

4. The special fixture for simulating the load on aircraft panel structures according to claim 1, characterized in that, The support frame (20) is provided with a vertically extending first slide rail (210) on the side facing the clamping member (30), and the clamping member (30) slides in the first slide rail (210) via the first slider (310); Multiple corresponding fixing structures are respectively provided on the two side walls (220) of the first slider (310) and the first slide rail (210) to fix the first slider (310) at different positions in the first slide rail (210).

5. The special fixture for simulating aircraft panel structure loads according to claim 4, characterized in that, The fixing structure includes: The second slide rail (221) is disposed on the inner side of the side wall (220) and the side of the first slider (310); The second slider (311) is slidably disposed in the second slide rail (221) on both sides of the first slider (310); Multiple second slide bars (314) are provided at the bottom of the second slide rail (221); Multiple second slide grooves (312) are provided on the second slider (311) corresponding to the second slide rod (314), and the second slide rod (314) slides in the corresponding second slide groove (312); Multiple second springs (313) are sleeved on the second slide bar (314) and abut against the opposite surfaces of the second slide rail (221) and the second slider (311); The second screw (230) has one end that passes through the side wall (220) and is hinged to the side wall (220); A clamping block (232) is disposed at the inner end of the second screw (230) and placed in the second slide rail (221); A handle (231) is provided at the outer end of the second screw (230) for driving the clamping block (232) to block the opening of the second slide rail (221) on the inner side of the sidewall (220). The second slider (311) is located in the second slide rail (221) on the side of the first slider (310). Alternatively, the clamping block (232) is driven to be placed in the second slide rail (221) on the inner side of the sidewall (220) for causing the second slider (311) to slide into the second slide rail (221) on the inner side of the sidewall (220).

6. The special fixture for simulating the load on aircraft panel structures according to claim 4, characterized in that, The first slider (310) has protrusions (315) extending outward from the opening of the first slide rail (210) on both sides. The cross-sectional shapes of the first slide rail (210) and the first slider (310) are matched.

7. The special fixture for simulating the load on aircraft panel structures according to claim 5, characterized in that, The clamping block (232) forms a receiving cavity (234). One end of the second screw (230) passes through the clamping block (232) and extends into the receiving cavity (234) where a stop block (233) is provided. The stop block (233) is movably installed in the receiving cavity (234) to drive the second screw (230) to rotate relative to the clamping block (232) via the handle (231).

Images