Rapid positioning clamp for aircraft seat side plate

Abstract

The utility model relates to the technical field of machining, in particular to a quick positioning clamp for an aircraft seat side plate. The clamp comprises a base, a sliding groove is formed in the base, a movable seat is slidably connected into the sliding groove, the front end of the movable seat is rotationally connected with a clamping jaw, the center of the base is rotationally connected with a middle rod, the middle rod is connected with a side rod through a side connecting rod, and the side rod is fixed to the movable seat. Movable blocks are arranged in the clamping jaws, one sides of the movable blocks are rotationally connected with threaded sleeves, the threaded sleeves are in threaded fit with threaded rods, the threaded rods are connected with connecting pieces, the connecting pieces are fixed to one ends of springs, the other ends of the springs are connected to the movable blocks on the other sides, and the output end of a motor on the rear side of the base is fixed to the center of a middle rod; rapid positioning is achieved through a linkage structure, the movable block and the spring are combined to adapt to different curved surfaces, the clamping force is accurately adjusted, the positioning precision and stability are improved, side plates of various specifications can be adapted, and the production efficiency and the machining quality are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of side panel positioning technology, and in particular to a quick positioning fixture for aircraft seat side panels. Background Technology

[0002] The aerospace manufacturing industry has increasingly higher requirements for the machining accuracy of key structural components such as aircraft seat side panels. Traditional positioning fixtures are unable to meet the high-efficiency production needs of side panels of various specifications. The industry urgently needs an automated positioning solution that combines high precision and high adaptability.

[0003] Currently, aircraft seat side panel positioning fixtures mainly use mechanical fixing or hydraulic clamping methods, which have obvious technical bottlenecks. Traditional rigid fixtures rely on manual adjustment of the positioning reference, and when facing side panel curved surfaces with different curvatures, tooling needs to be changed frequently, resulting in a longer production cycle. Although existing pneumatic clamping devices can achieve rapid action, the uneven distribution of clamping force can easily cause workpiece deformation, and the lack of a real-time feedback mechanism makes it difficult to guarantee positioning accuracy.

[0004] The traditional fixture positioning reference is not well matched with the curved surface features of the aircraft side plate, resulting in stress concentration. The clamping mechanism mostly uses single-degree-of-freedom drive, which cannot synchronously compensate for workpiece manufacturing errors. In addition, the differences in process parameters of different side plates are not recognized and automatically adapted by the system, resulting in poor fixture compatibility. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a quick positioning fixture for aircraft seat side panels, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a quick positioning fixture for aircraft seat side panels, including...

[0008] The base has symmetrically arranged sliding grooves on both sides of one side, and a movable seat is slidably connected in the sliding groove;

[0009] The front end of the movable seat is rotatably connected to a gripper, and the center of the base is rotatably connected to a middle rod.

[0010] Both ends of the intermediate rod are rotatably connected to side connecting rods, and the side connecting rods are arranged symmetrically with the intermediate rod.

[0011] The end of the side connecting rod away from the middle rod is rotatably connected to a side rod, and the side rod is fixedly connected to the movable seat.

[0012] Furthermore, a movable block is slidably connected inside the gripper, the movable blocks are symmetrically arranged, and a threaded sleeve is rotatably connected to one side of the movable block.

[0013] Furthermore, a hexagonal nut is provided on the outer side of the threaded sleeve, and a threaded rod is threadedly connected to the center of the threaded sleeve. A connector is rotatably connected to the inward side of the threaded rod.

[0014] Furthermore, a spring is fixedly connected to the connector, and the other end of the spring is fixedly connected to the upper end of the movable block on the other side.

[0015] Furthermore, the lower end of the movable block is a bevel, and a shim is provided on the bevel.

[0016] Furthermore, a motor is installed on the rear side of the base, and the output end of the motor passes through the base and is fixedly connected to the center of the intermediate rod.

[0017] The beneficial effects of this utility model are:

[0018] 1. This utility model achieves adaptive positioning of curved surfaces through the linkage mechanism of the movable seat and the gripper. The gripper can rotate with the middle rod, driving the side connecting rod and the side rod to move synchronously. Combined with the flexible contact design of the inclined side of the movable block and the pad, it can dynamically fit the curved surface of the side plate of the aircraft seat with different curvatures, effectively solving the problem of insufficient matching degree between traditional rigid fixtures and workpiece curved surface features, significantly reducing the phenomenon of contact stress concentration, and improving the positioning accuracy of complex curved surfaces.

[0019] 2. This fixture adopts a composite structure of spring preload and threaded rod fine adjustment. By rotating the threaded sleeve to adjust the spring compression, the clamping force of the moving block on the side plate can be precisely controlled. This avoids local overload deformation caused by single-degree-of-freedom drive and achieves uniform pressure by dynamically compensating for workpiece manufacturing errors. At the same time, the elastic buffering characteristics of the spring can adapt to the deformation requirements of side plates of different materials, ensuring that positioning stability is maintained and surface damage is prevented during the clamping process. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a structural schematic diagram of the aircraft seat side panel quick positioning fixture of this utility model.

[0022] Figure 2 for Figure 1 A magnified structural diagram of point A shown.

[0023] Figure 3 This is a schematic diagram of the workpiece structure for discharging material according to this utility model.

[0024] Figure 4This is a schematic diagram of the spiral worm gear structure of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Base; 11. Slide groove; 12. Intermediate rod; 13. Side connecting rod; 14. Side rod; 15. Motor; 2. Gripper; 21. Movable block; 211. Washer; 22. Threaded sleeve; 23. Threaded rod; 24. Connector; 25. Spring; 26. Movable seat. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Reference Figure 1-3 This first embodiment of the present invention provides a quick positioning fixture for aircraft seat side panels, including a base 1, which is the basic support structure of the entire fixture. The base 1 has symmetrically arranged sliding grooves 11 on both sides of one side, providing sliding guide tracks for a movable seat 26 to ensure stability and accuracy of movement. The movable seat 26 is slidably connected within the sliding grooves 11, allowing for position adjustment to adapt to the positioning requirements of different side panels.

[0030] The front end of the movable seat 26 is rotatably connected to a gripper 2, which is used to directly grip the side panel of the aircraft seat. The rotatable connection allows it to flexibly adjust the angle to fit the shape of the side panel. The center of the base 1 is rotatably connected to an intermediate rod 12, which serves as the core transmission component. The intermediate rod 12 drives the operation of subsequent components through rotation. Both ends of the intermediate rod 12 are rotatably connected to side connecting rods 13. The side connecting rods 13 convert the rotation of the intermediate rod 12 into the movement of the side rods 14, thereby realizing the transmission and distribution of power.

[0031] The side connecting rod 13 and the middle rod 12 are centrally symmetrically arranged to ensure balanced and consistent movement on both sides. The end of the side connecting rod 13 furthest from the middle rod 12 is rotatably connected to the side rod 14. The side rod 14 transmits the movement of the side connecting rod 13 to the movable seat 26, causing the movable seat to move. The side rod 14 is fixedly connected to the movable seat 26 to ensure effective power transmission and achieve precise adjustment of the gripper position, thereby meeting the requirements for rapid positioning of the side plate.

[0032] The gripper 2 has a sliding connection to a movable block 21 inside. The movable block 21 can slide flexibly within the gripper 2 and can be finely adjusted in position according to the actual shape of the aircraft seat side panel to achieve a precise fit. The movable blocks 21 are symmetrically arranged. This symmetrical layout ensures that the force on both sides is balanced when clamping the side panel, effectively avoiding side panel deformation or positioning deviation caused by uneven force. One side of the movable block 21 is rotatably connected to a threaded sleeve 22. By rotating the threaded sleeve 22, the position of the movable block 21 can be adjusted or the clamping force can be controlled, providing an adaptable clamping force for side panels of different thicknesses and materials, and improving the flexibility and adaptability of the fixture.

[0033] A hexagonal nut is provided on the outer side of the threaded sleeve 22. The hexagonal nut facilitates rotation using tools, allowing for precise control of the rotation of the threaded sleeve 22. A threaded rod 23 is threadedly connected to the center of the threaded sleeve 22. Through the threaded engagement, the threaded rod 23 can move smoothly along the axial direction when the threaded sleeve 22 is rotated, achieving precise position adjustment. A connecting piece 24 is rotatably connected to the inward side of the threaded rod 23. This rotatable connection method allows the connecting piece 24 to smoothly transmit power when the threaded rod 23 moves, ensuring stability when engaging with other components and avoiding jamming or stress concentration that may occur with rigid connections.

[0034] Example 2

[0035] Reference Figure 1-4 This is the second embodiment of the present invention, which differs from the first embodiment in that:

[0036] The connector 24 is fixedly connected to the spring 25. The spring 25 can provide elastic buffering and reset function to ensure the balance and adaptive adjustment of force during clamping. The other end of the spring 25 is fixedly connected to the upper end of the movable block 21 on the other side. This connection creates an elastic linkage structure, which can better fit the side panel surface when clamping various shapes of aircraft seat side panels, while preventing excessive compression that could damage the side panel.

[0037] The lower end of the movable block 21 is beveled. The beveled design allows the gripper 2 to better conform to the curved contour when gripping the side panel of the aircraft seat. By increasing the contact area, the pressure is dispersed, avoiding stress concentration that could cause side panel deformation or positioning deviation. The beveled side is also equipped with a pad 211, which is made of elastic material. This pad can not only buffer the impact force during the gripping process, but also increase the friction with the side panel surface, ensuring a stable and reliable gripping state, while protecting the side panel surface from being damaged.

[0038] A motor 15 is installed on the rear side of the base 1. The motor 15 is the power source of the entire fixture and provides power support for the rotation of the intermediate rod 12, ensuring that the fixture can achieve automated operation. The output end of the motor 15 passes through the base 1 and is fixedly connected to the center of the intermediate rod 12. This fixed connection method ensures that the power output of the motor 15 can be stably and efficiently transmitted to the intermediate rod 12, so that the intermediate rod 12 can rotate precisely according to the drive of the motor 15, thereby driving the subsequent side connecting rod 13, side rod 14, movable seat 26 and gripper 2 to work together to complete the rapid positioning and clamping action of the aircraft seat side panel.

[0039] The remaining structure is the same as that in Example 1.

[0040] The specific operation of this utility model is as follows:

[0041] First, when it is necessary to position and clamp the side panel of the aircraft seat, the motor 15 is started. The motor 15 starts to run, and its output end drives the intermediate rod 12, which is fixedly connected to the center, to rotate. Since the two ends of the intermediate rod 12 are rotatably connected to the side connecting rod 13, and the end of the side connecting rod 13 away from the intermediate rod 12 is rotatably connected to the side rod 14 fixed to the movable seat 26, the rotation of the intermediate rod 12 will cause the side connecting rod 13 and the side rod 14 to move accordingly. Since the movable seat 26 is slidably connected in the slide groove 11 of the base 1, the movable seat 26 will slide in the slide groove 11 under the drive of the side rod 14, thereby causing the gripper 2 connected to the front end of the movable seat 26 to move closer to the side panel of the aircraft seat.

[0042] Secondly, when the gripper 2 contacts the side panel of the aircraft seat, the movable block 21 can slide inside the gripper 2, and the lower inclined edge of the movable block 21 is provided with a pad 211. The movable block 21 will adaptively adjust according to the shape and surface condition of the side panel. When the threaded sleeve 22 is rotated, since the threaded sleeve 22 is threadedly connected to the threaded rod 23, the threaded rod 23 will move axially, thereby pushing the connecting piece 24. The movement of the connecting piece 24 will compress or stretch the spring 25. The other end of the spring 25 is fixed to the upper end of the movable block 21 on the other side. Through the elastic action of the spring 25, the movable block 21 can apply a suitable and uniform clamping force to the side panel to adapt to side panels of different shapes and sizes.

[0043] Finally, once the side plate is stably clamped, the motor 15 stops working, and the clamp maintains its positioning of the side plate. When it is necessary to release the side plate, the motor 15 reverses, causing the intermediate rod 12 to rotate in the opposite direction, which causes the side connecting rod 13 and the side rod 14 to move in the opposite direction. The movable seat 26 slides in the opposite direction in the slide groove 11, and the gripper 2 moves away from the side plate, completing one cycle of positioning, clamping, and releasing.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A quick positioning fixture for aircraft seat side panels, characterized in that: The device includes a base, on which two sides of one side are symmetrically arranged sliding grooves. A movable seat is slidably connected within the sliding grooves. A gripper is rotatably connected to the front end of the movable seat. A central rod is rotatably connected to the center of the base. Side connecting rods are rotatably connected to both ends of the central rod. The side connecting rods are symmetrically arranged with the central rod. A side rod is rotatably connected to the end of the side connecting rod away from the central rod. The side rod is fixedly connected to the movable seat.

2. The aircraft seat side panel quick positioning fixture according to claim 1, characterized in that... The gripper has a slidingly connected movable block inside, the movable blocks are symmetrically arranged, and a threaded sleeve is rotatably connected to one side of the movable block.

3. The aircraft seat side panel quick positioning fixture according to claim 2, characterized in that... The outer side of the threaded sleeve is provided with a hexagonal nut, and the center of the threaded sleeve is threadedly connected to a threaded rod. A connecting piece is rotatably connected to the inward side of the threaded rod.

4. The aircraft seat side panel quick positioning fixture according to claim 3, characterized in that... The connector is fixedly connected to a spring, and the other end of the spring is fixedly connected to the upper end of the movable block on the other side.

5. A quick positioning fixture for an aircraft seat side panel according to claim 4, characterized in that... The lower end of the movable block is a bevel, and a shim is provided on the bevel.

6. A quick positioning fixture for an aircraft seat side panel according to claim 1, characterized in that... A motor is provided on the rear side of the base, and the output end of the motor passes through the base and is fixedly connected to the center of the intermediate rod.

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