A quick positioning fixture for aircraft support base

Abstract

This utility model discloses an aviation support seat positioning fixture, relating to the technical field of rapid positioning tools for aviation support frames. It includes a support plate, with an L-shaped positioning platform mounted on one side of the top surface of the support plate. T-shaped sliding grooves are formed at the front and rear ends of the horizontal section of the positioning platform, and a placement groove is formed on the top surface of the vertical end of the positioning platform. A clamping platform is slidably mounted on the horizontal end of the positioning platform in conjunction with the sliding grooves, and a locking platform is mounted on the other side of the top surface of the support plate. An electric push cylinder is mounted on one side of the locking platform. In this utility model, the cooperation between the electric push cylinder and the positioning block solves the problem of low efficiency in manual adjustment in traditional positioning methods, improving the convenience and efficiency of support seat positioning. The cooperation between the drive motor, worm gear, worm wheel, and lead screw allows for precise adjustment of the clamping platform height to adapt to support seats of different specifications, solving the problem of narrow applicability of single-height fixtures and improving the versatility of the fixture.

Description

Technical Field

[0001] This utility model relates to the technical field of aircraft support frame positioning tools, and in particular to a quick positioning fixture for an aircraft support seat. Background Technology

[0002] In the aerospace manufacturing industry, the support base is a key load-bearing component. The accuracy and efficiency of its installation and positioning directly affect the assembly quality and production progress of the whole aircraft. Traditional aerospace support base positioning methods mostly rely on manual adjustment. The position and attitude of the support base are gradually calibrated by tools such as wrenches and calipers. Not only is the operation process cumbersome and time-consuming, but it is also difficult to guarantee the consistency of positioning accuracy due to the difference in the skill level and experience of the operators.

[0003] With the rapid development of the aviation industry, higher requirements have been placed on the performance of support seat positioning fixtures. Existing positioning fixtures have certain limitations in structural design. For example, some fixtures can only be adapted to support seats of specific specifications. When faced with support seats of different sizes and models, it is necessary to replace the entire fixture or carry out complex modifications, which greatly reduces production efficiency. At the same time, during the positioning process, the clamping parts of the fixture are prone to shaking and displacement, resulting in inaccurate positioning of the support seat, which in turn affects the accuracy of subsequent assembly processes. It may even cause damage to the surface of the support seat due to excessive compression, increasing the risk of product scrap. Therefore, the above problems need to be solved. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a quick positioning fixture for aircraft support seats.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick positioning fixture for an aviation support base, comprising a support plate, an L-shaped positioning platform installed on one side of the top surface of the support plate, a T-shaped sliding groove opened on the front and rear end faces of the positioning platform, and a placement groove opened on the top surface of the positioning platform; the positioning platform is slidably connected to a sliding platform in cooperation with the sliding groove, and a locking platform is installed on the other side of the top surface of the support plate, and a self-locking electric push cylinder is installed on one side of the locking platform.

[0006] Preferably, a positioning groove is provided on the other side of the sliding table, and a positioning block that matches the positioning groove is fixedly connected to the output shaft of the electric push cylinder. The positioning block is snapped into the positioning groove, and a connecting plate is fixedly connected to the lower side of the other side of the sliding table. A fixing plate is installed at the front end of the connecting plate in conjunction with the sliding groove, and a bolt is threadedly connected to the rear end face of the fixing plate. The connecting plate has a threaded hole that matches the bolt, and the bolt is threadedly connected to the connecting plate through the threaded hole.

[0007] Preferably, the top surface of the sliding table has an installation groove, a guide rod is vertically installed at the front end of the bottom surface inside the installation groove, a drive platform is installed at the rear end of the guide rod, a drive motor is installed at the front end of the drive platform, and the drive end of the drive motor is connected to a worm gear through a coupling.

[0008] Preferably, a rotating rod is vertically installed on the bottom surface of the mounting groove, a worm gear is rotatably installed on the upper end of the rotating rod, a lead screw is vertically installed on the top axis of the worm gear, and the worm gear meshes with the worm gear for transmission. A clamping platform is threadedly connected to the upper end of the lead screw, and the clamping platform has a guide hole in cooperation with the guide rod, and the guide rod passes through the guide hole.

[0009] Preferably, a U-shaped fixing platform is installed above one side of the clamping platform. The front end and rear end of the inner side of the fixing platform are respectively provided with fixing grooves, and a locking block is provided on the inner side of the fixing platform. The two ends of the locking block are slidably connected in the fixing grooves. A snap-fit ​​platform is installed at the lower end of the fixing platform. A locking bolt is threadedly connected to the top surface of the locking block. A threaded groove for the locking bolt is provided on the top surface of the fixing platform. The locking bolt is threadedly connected to the fixing platform through the threaded groove.

[0010] Preferably, lifting grooves are respectively provided at the front and rear ends of one side of the clamping platform, and a lifting block is slidably connected to one side of the clamping platform in cooperation with the lifting groove. Buffer screws are threaded to the same end of the inner sides of the two lifting blocks, and lifting screws are threaded to the same end of the outer sides of the two lifting blocks. Nuts are threaded to the upper ends of both the buffer screws and the lifting screws, and a spring is sleeved on the lower end of the buffer screw. The top surface of the spring abuts against the bottom surface of the lifting block, and the bottom surface of the spring abuts against the lower side of one side of the clamping platform.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the electric push cylinder and the positioning block enables rapid adjustment of the sliding table position to adapt to the support seat, solving the problem of low efficiency in manual adjustment in traditional positioning methods and improving the convenience and efficiency of support seat positioning; the cooperation between the drive motor, worm gear, worm wheel and lead screw enables precise adjustment of the clamping table height to adapt to support seats of different specifications, solving the problem of narrow applicability of single-height fixtures and improving the versatility of fixtures; the cooperation between the guide rod and the clamping table assists in the stable lifting and lowering of the clamping table, solving the problem of easy shaking during the lifting and lowering of the clamping table leading to inaccurate positioning, and improving the stability and positioning accuracy of the clamping table movement. Positioning accuracy; the cooperation between the fixed plate and the sliding groove at the transverse end of the positioning table, by rotating the fixed plate to abut against the sliding groove, stabilizes the position of the sliding table, solving the problem of easy displacement of the sliding table during operation and improving the stability of equipment operation; the cooperation between the lifting screw, buffer screw, nut, lifting block, and spring ensures that the support seat is firmly fixed while avoiding excessive compression damage, solving the problem of easy pinching during support seat fixing and improving the safety and reliability of support seat fixing; the cooperation between the fixed table, locking block, and locking bolt further reinforces the support seat, solving the problem of possible loosening of the support seat during processing or testing, and improving the stability of the support seat positioning. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the positioning block and mounting groove structure proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the connecting plate and fixing plate structure proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the worm gear and lead screw structure proposed in this utility model;

[0017] Figure 5 This is a schematic diagram of the lifting screw and buffer screw proposed in this utility model.

[0018] The following are the components listed in the diagram: 1. Support plate; 2. Positioning platform; 3. Sliding platform; 4. Locking platform; 5. Electric push cylinder; 6. Positioning block; 7. Connecting plate; 8. Fixing plate; 9. Mounting slot; 10. Guide rod; 11. Drive platform; 12. Drive motor; 13. Worm gear; 14. Worm wheel; 15. Lead screw; 16. Clamping platform; 17. Fixing platform; 18. Locking block; 19. Lifting block; 20. Lifting screw; 21. Buffer screw; 22. Spring; 23. Nut. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example: See Figures 1 to 5This utility model discloses a quick positioning fixture for an aircraft support base, comprising a support plate 1, which facilitates the installation of a positioning platform 2 and a locking platform 4; an L-shaped positioning platform 2 is installed on one side of the top surface of the support plate 1, and T-shaped sliding grooves are formed on the front and rear end faces of the positioning platform 2, facilitating the installation of a sliding platform 3; a placement groove is formed on the top surface of the positioning platform 2; the positioning platform 2 is slidably connected to the sliding platform 3 in conjunction with the sliding groove, facilitating the limiting and fixing of the support base; and a locking platform 4 is installed on the other side of the top surface of the support plate 1, facilitating the installation of an electric... A self-locking electric push cylinder 5 is installed on one side of the locking platform 4, which facilitates the installation and driving of the locking platform 4 to slide on the horizontal end of the positioning platform 2. A positioning groove is provided on the other side of the sliding platform 3. The output shaft of the electric push cylinder 5 is fixedly connected to a positioning block 6 that matches the positioning groove. The positioning block 6 is engaged in the positioning groove, facilitating the construction of a driving "bridge" between the electric push cylinder 5 and the sliding platform 3. A connecting plate 7 is fixedly connected to the lower side of the other side of the sliding platform 3, facilitating the installation of a fixing plate 8. The front end of the connecting plate 7 is fitted with the sliding groove to install the fixing plate 8. The fixing plate 8 is then installed behind the sliding groove. The end face is threaded with bolts, which, through the fixing plate 8, facilitate the fixing of the sliding table 3 against the sliding groove; the connecting plate 7 has threaded holes to accommodate the bolts, through which the bolts are threadedly connected to the connecting plate 7; the top surface of the sliding table 3 has a mounting groove 9, which facilitates the installation of the guide rod 10; the front end of the bottom surface of the mounting groove 9 is vertically mounted with the guide rod 10, and the rear end of the guide rod 10 is mounted with a drive platform 11, which facilitates the installation of the drive motor 12; the front end of the drive platform 11 is mounted with the drive motor 12, which facilitates the driving of the worm gear 13. The drive end of the drive motor 12 is connected to the worm gear 13 via a coupling, which facilitates the drive of the worm wheel 14. A rotating rod is vertically installed on the bottom surface of the mounting groove 9, and the worm wheel 14 is rotatably installed on the upper end of the rotating rod, which facilitates the rotation of the lead screw 15. The lead screw 15 is vertically installed on the top axis of the worm wheel 14, and the worm wheel 14 meshes with the worm gear 13 for transmission, which facilitates the lifting and lowering of the clamping table 16. The upper end of the lead screw 15 is threadedly connected to the clamping table 16, and the clamping table 16 has a guide hole that cooperates with the guide rod 10, through which the guide rod 10 passes.

[0021] In this utility model, a U-shaped fixing platform 17 is installed on the upper side of one side of the clamping platform 16, which facilitates the installation of the locking block 18. The front and rear ends of the inner side of the fixing platform 17 are respectively provided with fixing grooves, and the inner side of the fixing platform 17 is provided with the locking block 18, which facilitates the abutment and fixation of the support base. The two ends of the locking block 18 are slidably connected within the fixing grooves. A snap-fit ​​platform is installed at the lower end of the fixing platform 17, and a locking bolt is threadedly connected to the top surface of the locking block 18. A threaded groove is opened on the top surface of the fixing platform 17 to mate with the locking bolt, and the locking bolt is threadedly connected to the fixing platform 17 through the threaded groove. Lifting grooves are respectively opened at the front and rear ends of one side of the clamping platform 16, and one side of the clamping platform 16 is equipped with... Lifting blocks 19 are slidably connected to the lifting slot, which facilitates contact with both sides of the support base. Buffer screws 21 are threaded to the same end of the inner sides of the two lifting blocks 19, preventing excessive pressure from the lifting blocks 19 on the support base and thus preventing damage. Lifting screws 20 are threaded to the same end of the outer sides of the two lifting blocks 19, facilitating the engagement of the buffer screws 21 and nuts 23 to drive the lifting blocks 19 and fix the support base. Nuts 23 are threaded to the upper ends of both the buffer screws 21 and the lifting screws 20, and a spring 22 is sleeved on the lower end of the buffer screw 21. The top surface of the spring 22 abuts against the bottom surface of the lifting block 19, and the bottom surface of the spring 22 abuts against the lower side of one side of the clamping platform 16.

[0022] Working principle: When using this utility model, the entire device is placed in the designed working position via the support plate 1. The device is powered on, and the support base is placed in the placement slot at the vertical end of the positioning table 2. The electric push cylinder 5 installed at the front end of the locking table 4 is activated. The electric push cylinder 5 pushes the sliding table 3 to the position that can fix the support base through the positioning block 6. (During the movement of the sliding table 3, the drive motor 12 on the drive table 11 located in the mounting slot 9 is activated. The drive motor 12 drives the worm gear 13 to rotate, which in turn drives the worm wheel 14 to rotate, thereby driving the lead screw 15 to rotate and thus driving the clamping table.) 16 is raised and lowered. The guide rod 10 assists in stabilizing the clamping table 16 during the raising and lowering process. By rotating the fixed plate 8, which is bolted to one side of the connecting plate 7, the fixed plate 8 abuts against the sliding groove opened at the transverse end of the positioning table 2. The sliding table 3 is fixed by friction. Then, the nut 23 installed on the upper end of the lifting screw 20 and the buffer screw 21 is rotated to squeeze the lifting block 19 and the spring 22 to fix the support seat (the spring 22 will prevent the lifting block 19 from over-compressing the support seat). Finally, the bolt threaded to the top surface of the fixed table 17 is rotated to drive the locking block 18 to move down and fix the support seat.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick positioning fixture for an aircraft support base, comprising a support plate (1), characterized in that: An L-shaped positioning platform (2) is installed on one side of the top surface of the support plate (1). The front and rear ends of the positioning platform (2) are provided with T-shaped sliding grooves, and the top surface of the positioning platform (2) is provided with a placement groove. The positioning platform (2) is slidably connected to a sliding platform (3) in cooperation with the sliding groove. A locking platform (4) is installed on the other side of the top surface of the support plate (1), and a self-locking electric push cylinder (5) is installed on one side of the locking platform (4).

2. The quick positioning fixture for an aircraft support base according to claim 1, characterized in that: The sliding table (3) has a positioning groove on the other side. The output shaft of the electric push cylinder (5) is fixedly connected to a positioning block (6) that matches the positioning groove. The positioning block (6) is snapped into the positioning groove. A connecting plate (7) is fixedly connected to the lower side of the sliding table (3). A fixing plate (8) is installed at the front end of the connecting plate (7) in conjunction with the sliding groove. A bolt is threaded to the rear end face of the fixing plate (8). The connecting plate (7) has a threaded hole in conjunction with the bolt. The bolt is threaded to the connecting plate (7) through the threaded hole.

3. The quick positioning fixture for an aircraft support base according to claim 2, characterized in that: The sliding table (3) has an installation groove (9) on its top surface. A guide rod (10) is vertically installed at the front end of the bottom surface of the installation groove (9). A drive platform (11) is installed at the rear end of the guide rod (10). A drive motor (12) is installed at the front end of the drive platform (11). The drive end of the drive motor (12) is connected to a worm gear (13) through a coupling.

4. The quick positioning fixture for an aircraft support base according to claim 3, characterized in that: A rotating rod is vertically installed on the bottom surface of the mounting groove (9). A worm gear (14) is rotatably installed on the upper end of the rotating rod. A lead screw (15) is vertically installed on the top axis of the worm gear (14). The worm gear (14) meshes with the worm (13) for transmission. A clamping platform (16) is threadedly connected to the upper end of the lead screw (15). The clamping platform (16) cooperates with the guide rod (10) to open a guide hole. The guide rod (10) passes through the guide hole.

5. The quick positioning fixture for an aircraft support base according to claim 4, characterized in that: A U-shaped fixing platform (17) is installed above one side of the clamping platform (16). The front end and rear end of the inner side of the fixing platform (17) are respectively provided with fixing grooves, and a locking block (18) is provided inside the fixing platform (17). The two ends of the locking block (18) are slidably connected in the fixing groove. A snap-fit ​​platform is installed at the lower end of the fixing platform (17). A locking bolt is threadedly connected to the top surface of the locking block (18). A threaded groove for the locking bolt is opened on the top surface of the fixing platform (17). The locking bolt is threadedly connected to the fixing platform (17) through the threaded groove.

6. The quick positioning fixture for an aircraft support base according to claim 5, characterized in that: The clamping platform (16) has lifting grooves at its front and rear ends on one side, and a lifting block (19) is slidably connected to one side of the clamping platform (16) in conjunction with the lifting groove. The inner sides of the two lifting blocks (19) are threaded with a buffer screw (21) at the same end, and the outer sides of the two lifting blocks (19) are threaded with a lifting screw (20) at the same end. The upper ends of the buffer screw (21) and the lifting screw (20) are threaded with nuts (23), and the lower end of the buffer screw (21) is fitted with a spring (22). The top surface of the spring (22) abuts against the bottom surface of the lifting block (19), and the bottom surface of the spring (22) abuts against the lower side of the clamping platform (16).

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