Folding rudder flat bottom blind hole machining device

Abstract

The utility model discloses a folding rudder flat bottom blind hole machining device which comprises a drilling tool and a tool, and the tool comprises a base body and a clamping mechanism. A profiling groove is formed in the top of the base body, and a mounting groove is formed in one side of the base body; the clamping mechanism comprises a pressing rod, a connecting block, a rotating column and an adjusting rod; the connecting block is movably connected in the mounting groove, the adjusting rod is rotationally connected with the base body, and the top of the adjusting rod extends into the mounting groove and is in threaded connection with the connecting block; the rotating column is fixedly connected with the pressing rod, and the bottom of the rotating column is rotationally connected with the connecting block. According to the utility model, the accuracy of the initial placement position of the folding rudder is ensured through the profiling groove, the clamping and positioning errors are reduced, and the position precision of blind hole processing is improved. The connecting block is adjusted through the adjusting rod so as to drive the pressing rod to press tightly, the folding rudder can be stably fixed in the profiling groove, displacement and deflection during machining are avoided, and the machining quality is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, specifically a folding rudder flat-bottom blind hole processing device. Background Technology

[0002] Folding rudders are key components in aerospace, missile guidance, and other fields, and their structural precision and reliability directly affect the handling performance and safety of aircraft. Flat-bottomed blind holes are a common structural feature of folding rudders, typically used to mount locating pins, weight-reducing holes, or sensor components, and require stringent standards for hole wall perpendicularity, bottom surface flatness, and dimensional accuracy. However, in actual machining, the forming quality of blind holes is easily affected by clamping stability, especially under conditions with large depth-to-diameter ratios or high material hardness, where the shortcomings of existing clamping devices become particularly prominent.

[0003] Existing devices mostly employ single-point or partial clamping methods, making it difficult to create a uniform clamping force field on the surface of irregularly shaped or thin-walled folding rudders. This is especially problematic when machining asymmetric blind holes, where the workpiece is prone to micro-displacement due to unbalanced forces, directly impacting machining accuracy. While existing technologies have attempted to improve clamping stability by adding auxiliary supports or using multi-jaw chucks, the increased structural complexity often leads to higher costs, and the increased space requirements may limit toolpath planning. Therefore, there is an urgent need to develop a novel machining device for flat-bottomed blind holes in folding rudders to facilitate this process.

[0004] Patent application CN202011540410.7 discloses a folding rudder surface assembly fixture and assembly method. This folding rudder surface assembly fixture includes a first positioning clamping structure, a second positioning clamping structure, a torsion spring alignment structure, and a directional drive mechanism. The fixture uses the first and second clamping mechanisms to fix the folding rudder surface, thus facilitating subsequent assembly or processing. However, this clamping fixture suffers from structural complexity and cumbersome clamping. Utility Model Content

[0005] The purpose of this utility model is to provide a folding rudder flat-bottom blind hole processing device to solve the following technical problems mentioned in the background art:

[0006] Existing clamping devices for folding rudders often suffer from complex structures and cumbersome clamping.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A folding rudder flat-bottom blind hole processing device includes a drill bit and tooling. The tooling includes a base and a clamping mechanism. The top of the base is provided with a contour groove, and one side of the base is provided with an installation groove. The clamping mechanism includes a pressure rod, a connecting block, a rotating column, and an adjusting rod. The connecting block is movably connected in the installation groove, and the adjusting rod is rotatably connected to the base. The top of the adjusting rod extends into the installation groove and is threadedly connected to the connecting block. The rotating column is fixedly connected to the pressure rod, and the bottom of the rotating column is rotatably connected to the connecting block.

[0009] Furthermore, a side groove is provided on the substrate at the edge of the contour groove.

[0010] Furthermore, corner protection holes are provided on the substrate at each corner of the contour groove.

[0011] Furthermore, two sets of pressure rods and rotating columns are symmetrically arranged on the connecting block.

[0012] Furthermore, limit grooves are provided on both sides of the base located within the mounting groove, and limit blocks are fixedly connected to the rotating column, with the limit blocks cooperating with the limit grooves.

[0013] Furthermore, positioning blocks are fixed to the substrate.

[0014] Furthermore, a rotating head is fixedly connected to the bottom of the adjusting rod.

[0015] Furthermore, a contact pad is provided on one side of the bottom of the pressure bar.

[0016] Furthermore, a base is provided on one side of the substrate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention ensures accurate initial placement of the folding rudder through contoured grooves, reduces clamping and positioning errors, and helps improve the positional accuracy of blind hole machining.

[0019] The design of this invention, which allows the pressure rod to rotate and the adjusting rod to drive the connecting block to move, facilitates the installation and disassembly of the folding rudder, improving operational efficiency. Adjusting the connecting block via the adjusting rod, which in turn drives the pressure rod to tighten, ensures the folding rudder is securely fixed within the contour groove, preventing displacement or skewing during processing and guaranteeing machining quality. Attached Figure Description

[0020] Figure 1 This is one of the schematic diagrams of the tooling structure of this utility model;

[0021] Figure 2 This is the second schematic diagram of the tooling structure of this utility model;

[0022] Figure 3 This is the third schematic diagram of the tooling structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the tooling of this utility model.

[0024] The markings in the diagram are: 1-base, 2-folding rudder, 3-foot, 4-mounting slot, 5-clamping mechanism, 6-contour groove, 7-corner protection hole, 8-side groove, 9-limiting block, 10-pressure rod, 11-rotating column, 12-rotating head, 13-adjusting rod, 14-connecting block, 15-limiting groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] A folding rudder flat-bottom blind hole processing device includes a drill bit and tooling. The tooling includes a base 1 and a clamping mechanism 5. The top of the base 1 is provided with a contour groove 6, and one side of the base 1 is provided with a mounting groove 4. The clamping mechanism 5 includes a pressure rod 10, a connecting block 14, a rotating column 11, and an adjusting rod 13. The connecting block 14 is movably connected in the mounting groove 4, and the adjusting rod 13 is rotatably connected to the base 1. The top of the adjusting rod 13 extends into the mounting groove 4 and is threadedly connected to the connecting block 14. The rotating column 11 is fixedly connected to the pressure rod 10, and the bottom of the rotating column 11 is rotatably connected to the connecting block 14.

[0028] The contoured groove 6 on the base 1 is used to place the folding rudder 2, the clamping mechanism 5 is used to fix the folding rudder 2, and the drill bit is used to machine blind holes on the folding rudder 2. In the clamping mechanism 5, the pressure rod 10 is used to press the folding rudder 2, the connecting block 14 is used to drive the pressure rod 10 to move through the rotating column 11, and the adjusting rod 13 is used to adjust the position of the connecting block 14.

[0029] Specifically, during use, rotating the adjusting rod 13 causes the connecting block 14 to move upwards. The connecting block 14 then moves the pressure rod 10 upwards. After the pressure rod 10 moves upwards, it can rotate to adjust its position, thus facilitating the installation of the folding rudder 2 on the base 1. After the folding rudder 2 is in place, rotating the pressure rod 10 positions it above the folding rudder 2. Then, rotating the adjusting rod 13 causes the connecting block 14 to move downwards, which in turn moves the pressure rod 10 downwards. The pressure rod 10 then fixes the folding rudder 2 within the contour groove 6. Finally, the folding rudder 2 is machined using a drilling tool.

[0030] In a preferred embodiment, a side groove 8 is provided on the base 1 at the edge of the contour groove 6. The side groove 8 is designed to facilitate the placement of the folding rudder 2 within the contour groove 6, while also effectively preventing damage to the edge of the folding rudder 2.

[0031] In a preferred embodiment, corner protection holes 7 are provided on the base 1 at each corner of the contour groove 6. These holes prevent direct collision and friction between the folding rudder 2 and the corners of the contour groove 6 during loading and unloading, thus providing protection and extending the service life of the contour groove 6 and the tooling. Furthermore, the corner protection holes 7 effectively prevent stress concentration at the corners of the folding rudder 2 during processing.

[0032] In a preferred embodiment, two sets of pressure rods 10 and rotating columns 11 are symmetrically arranged on the connecting block 14. By setting two sets of pressure rods 10 and rotating columns 11, the force on the folding rudder 2 can be more even when it is clamped, avoiding displacement or deformation due to force on one side, and ensuring stability during processing. By clamping at two points, the fixed state of the folding rudder 2 is further stabilized, reducing the possibility of loosening or displacement during processing, which is beneficial to improving the processing accuracy of blind holes.

[0033] In a preferred embodiment, limiting grooves 15 are provided on both sides of the base 1 within the mounting groove 4, and limiting blocks 9 are fixedly connected to the rotating column 11, with the limiting blocks 9 engaging with the limiting grooves 15. Specifically, during use, the connecting block 14 drives the pressure rod 10 to move downwards, allowing the limiting blocks 9 on the rotating column 11 to enter the limiting grooves 15. At this time, the limiting grooves 15 can hold the rotating column 11, thus fixing the position of the rotating column 11 and consequently fixing the position of the pressure rod 10, ensuring the clamping stability of the pressure rod 10. This improves the reliability of the entire clamping mechanism 5 and ensures the smooth progress of the processing.

[0034] In a preferred embodiment, a positioning block is fixed to the base 1. The positioning block is used to limit the rotation angle of the rotating column 11. At the same time, when the limiting block 9 contacts the positioning block, the pressure rod 10 moves downward to ensure that the limiting block 9 enters the limiting groove 15.

[0035] In a preferred embodiment, a rotating head 12 is fixedly connected to the bottom of the adjusting rod 13. The rotating head 12 facilitates the rotation of the adjusting rod 13. By increasing the contact area at the bottom of the adjusting rod 13, the rotating head 12 allows the operator to rotate the adjusting rod 13 more easily and effortlessly. Thanks to the design of the rotating head 12, the position of the connecting block 14 can be quickly adjusted, thereby shortening the time spent clamping the folding rudder 2 and improving overall processing efficiency.

[0036] In a preferred embodiment, a contact pad is provided on one side of the bottom of the pressure rod 10. The contact pad can be made of rubber material. The elastic material of the contact pad prevents the metal pressure rod 10 from directly contacting the workpiece, preventing surface scratches or indentations. At the same time, the elastic properties can conform to the irregular surface of the folding rudder 2, ensuring uniform transmission of clamping force and improving machining accuracy.

[0037] In a preferred embodiment, a foot 3 is provided on one side of the substrate 1. The foot 3 is used to facilitate the placement of the substrate 1 and ensure the stability of the substrate 1.

[0038] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for processing flat-bottomed blind holes for folding rudders, characterized in that: The tooling includes a drilling tool and a fixture, wherein the fixture includes a base (1) and a clamping mechanism (5); the top of the base (1) is provided with a contour groove (6), and the side of the base (1) is provided with an installation groove (4); The clamping mechanism (5) includes a pressure rod (10), a connecting block (14), a rotating column (11), and an adjusting rod (13); The connecting block (14) is movably connected in the mounting groove (4), the adjusting rod (13) is rotatably connected to the base (1), the top of the adjusting rod (13) extends into the mounting groove (4) and is threadedly connected to the connecting block (14); the rotating column (11) is fixedly connected to the pressure rod (10), and the bottom of the rotating column (11) is rotatably connected to the connecting block (14).

2. The folding rudder flat-bottom blind hole processing device according to claim 1, characterized in that: A side groove (8) is provided on the substrate (1) at the edge of the contour groove (6).

3. The folding rudder flat-bottom blind hole processing device according to claim 1, characterized in that: Corner protection holes (7) are provided at each corner of the contour groove (6) on the substrate (1).

4. The folding rudder flat-bottom blind hole processing device according to claim 1, characterized in that: Two sets of pressure rods (10) and rotating columns (11) are symmetrically arranged on the connecting block (14).

5. The folding rudder flat-bottom blind hole processing device according to claim 1, characterized in that: Limiting grooves (15) are provided on both sides of the base (1) located in the mounting groove (4), and limiting blocks (9) are fixed on the rotating column (11), with the limiting blocks (9) cooperating with the limiting grooves (15).

6. The folding rudder flat-bottom blind hole processing device according to claim 4, characterized in that: A positioning block is fixed on the substrate (1).

7. The folding rudder flat-bottom blind hole processing device according to claim 1, characterized in that: A rotating head (12) is fixed to the bottom of the adjusting rod (13).

8. The folding rudder flat-bottom blind hole processing device according to claim 1, characterized in that: A contact pad is provided on one side of the bottom of the pressure bar (10).

9. The folding rudder flat-bottom blind hole processing device according to claim 1, characterized in that: A foot (3) is provided on one side of the substrate (1).

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