Precision machining fixture for aircraft parts

Abstract

This utility model relates to the field of aircraft component processing technology, specifically to a precision machining fixture for aircraft components. The fixture includes: a worktable with a groove; a slider movably connected to one side of the inner wall of the groove; a soft pad layer fixedly connected to one side of the outer wall of the slider; a connecting rod movably connected to the lower end of the slider; a connecting plate movably connected to the side of the connecting rod away from the slider; a fixed rod movably connected to the middle of the connecting plate; a connecting block fixedly connected to the lower outer wall of the slider; a cylinder connected to one side of the connecting block; and a horizontal plate fixedly connected to the lower end of the cylinder. This utility model solves the problem that existing aircraft component machining fixtures use a rigid clamping structure, lack effective buffering and shock absorption design, cannot absorb vibrations generated during processing, and have poor adaptability.

Description

Technical Field

[0001] This utility model relates to the field of aircraft parts processing technology, specifically to precision machining fixtures for aircraft parts. Background Technology

[0002] Precision machining fixtures for aircraft parts are specialized tools used in the aerospace manufacturing industry for fixing and positioning aircraft parts. Through innovative design, these fixtures can securely hold and precisely position aircraft parts during machining, while preventing damage to the parts. This ensures the stability and safety of the machining process, providing a reliable guarantee for achieving high-precision, high-quality aircraft part machining, and effectively improving the production efficiency and product quality of aerospace manufacturing.

[0003] Traditional aircraft component machining fixtures suffer from several problems in practical applications, primarily in terms of clamping methods and adaptability. Most fixtures employ rigid clamping structures, which, due to a lack of flexibility, easily cause mechanical damage to the fragile surfaces of aircraft components when fixing them. This not only affects the appearance of the components but may also adversely impact their performance and service life. Simultaneously, most existing fixtures lack effective cushioning and shock absorption designs, failing to absorb vibrations generated during machining, resulting in poor clamping stability and thus increasing machining errors, affecting component accuracy. Furthermore, traditional fixtures have poor adaptability, unable to be flexibly adjusted for components of different sizes and structures, and unable to achieve precise positioning and omnidirectional clamping, limiting their application in complex machining environments. Therefore, we propose a precision machining fixture for aircraft components. Utility Model Content

[0004] One of the technical problems that this application aims to solve is that existing aircraft parts processing fixtures adopt rigid clamping structures, lack effective buffering and shock absorption designs, cannot absorb the vibrations generated during processing, and have poor adaptability.

[0005] To address the aforementioned technical problems, this application provides a precision machining fixture for aircraft parts, including a worktable with a groove. A slider is movably connected to one side of the inner wall of the groove, and a soft pad is fixedly connected to one side of the outer wall of the slider. A connecting rod is movably connected to the lower end of the slider, and a connecting plate is movably connected to the side of the connecting rod away from the slider. A fixed rod is movably connected to the middle of the connecting plate, and a connecting block is fixedly connected to the lower outer wall of the slider. A cylinder is connected to one side of the connecting block, and a horizontal plate is fixedly connected to the lower end of the cylinder.

[0006] In some embodiments, a support leg is fixedly connected to the lower outer wall of the worktable, a drive device is fixedly connected to one outer wall of the worktable, a movable plate is movably connected to one outer wall of the drive device, a motor is fixedly connected to the upper outer wall of one side of the movable plate, a threaded rod is connected to one side of the motor, a movable block is movably connected to one outer wall of one side of the threaded rod, a processing device is connected to the lower outer wall of one side of the movable block, a sensor is connected to the lower end of one outer wall of one side of the movable block, and a controller is fixedly connected to one outer wall of the upper side of the worktable.

[0007] In some embodiments, the sensors are located on both sides of the processing device and are fixedly connected to the lower end of the outer wall of one side of the movable block.

[0008] In some embodiments, the upper end of the fixing rod is fixedly connected to the lower outer wall of the workbench.

[0009] In some embodiments, the upper end of the horizontal plate is fixedly connected to the lower outer wall of the workbench.

[0010] In some embodiments, the annular array of sliders comprises four elements, each slidably connected to the inner wall of a groove on the worktable.

[0011] In some embodiments, a cylinder provided on one side of the connecting block is located on the opposite side of the connecting block and is fixedly connected to the horizontal plate.

[0012] In some embodiments, four connecting rods are provided and arranged in a circular array on the upper end of the outer wall of the connecting plate.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. In use, this utility model features four grooves arranged in a ring on the outer wall of the upper end of the worktable, each containing a slider. Each slider has a rubber padding layer attached to its outer wall. The padding layer provides excellent containment and cushioning, effectively preventing mechanical damage to fragile aircraft parts and absorbing some vibration during processing, thus improving the stability and safety of the clamping process. Furthermore, the sliders are connected to a connecting plate via connecting rods. The connecting plate rotates around a fixed rod, causing the four sliders to move longitudinally in coordination, thereby achieving flexible, circumferential clamping of the parts and meeting the positioning requirements of aircraft parts of different sizes and structures.

[0015] 2. In use, this utility model incorporates a main slider structure with a cylinder and a connecting block at its lower end. The cylinder pushes the connecting block laterally, causing the connected sliders to shift. Since the connecting rod is located at the corner of the connecting plate, the slider shift causes the connecting plate to rotate around the fixed rod, thus coordinating the other three sliders to achieve synchronous clamping motion. This structure utilizes a small number of driving components to control the coordinated movement of multiple parts, offering advantages such as simple structure and high efficiency.

[0016] 3. In use, the device has a drive unit on the side wall of the worktable, which drives the movable plate to offset, thereby driving the motor and threaded rod to move the movable block. The processing device and two sensors are installed at the lower end of the movable block. The motor drives the threaded rod to rotate, realizing the lateral translation movement of the processing device and sensors, thus adapting to different processing positions. With the help of intelligent scanning and positioning of the processing area by the sensors, the processing device can automatically align and perform processing according to the position of the part, greatly improving the degree of automation and processing accuracy, and reducing human intervention and errors.

[0017] 4. In use, the device is equipped with a controller to uniformly regulate the actions of key actuators such as the drive unit and motor, achieving programmed and centralized management and improving operational convenience and safety. Simultaneously, the bottom support feet enhance the stability of the entire machine during operation, ensuring no displacement or vibration deviation occurs during processing, further enhancing the overall reliability of the system. Attached Figure Description

[0018] Figure 1 This is a first-person perspective schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the integral arm structure from a second perspective of the present invention;

[0020] Figure 3 This is a first-person perspective disassembly diagram of the transmission device of this utility model;

[0021] Figure 4 This is a disassembly diagram of the second-view transmission device of this utility model.

[0022] In the diagram: 1. Workbench; 2. Support leg; 3. Movable plate; 4. Motor; 5. Threaded rod; 6. Movable block; 7. Processing device; 8. Sensor; 9. Controller; 10. Slide groove; 11. Slider; 12. Soft pad layer; 13. Connecting rod; 14. Connecting plate; 15. Fixed rod; 16. Cylinder; 17. Connecting block; 18. Horizontal plate; 19. Drive device. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0024] Example 1: Please refer to Figure 1-4This utility model provides a technical solution: a precision machining fixture for aircraft parts, including a worktable 1, on which a slide groove 10 is formed. A slider 11 is movably connected to one side of the inner wall of the slide groove 10. Four sliders 11 are arranged in a circular array and are slidably connected to the inner wall of the slide groove 10 on the worktable 1. A soft pad layer 12 is fixedly connected to one side of the outer wall of the slider 11. A connecting rod 13 is movably connected to the lower end of the slider 11. A connecting plate 14 is movably connected to the side of the connecting rod 13 away from the slider 11. Four are provided and arranged in a ring on the upper part of the outer wall of the connecting plate 14. A fixed rod 15 is movably connected to the middle of the connecting plate 14. The upper end of the fixed rod 15 is fixedly connected to the lower outer wall of the worktable 1. A connecting block 17 is fixedly connected to the lower outer wall of the slider 11. A cylinder 16 is connected to one side of the connecting block 17. A horizontal plate 18 is fixedly connected to the lower end of the cylinder 16. The upper end of the horizontal plate 18 is fixedly connected to the lower outer wall of the worktable 1. The cylinder 16 provided on one side of the connecting block 17 is located on the opposite side of the connecting block 17 and is fixedly connected to the horizontal plate 18.

[0025] In this embodiment, a workbench 1 is designed with four grooves 10 arranged in a ring on the upper outer wall of the workbench 1. A slider 11 is movably connected to one side of the inner wall of each of the four grooves 10. A soft pad 12 is fixedly connected to one side of the outer wall of the slider 11. The soft pad 12 is made of rubber and has good wrapping properties. Some aircraft parts are relatively fragile; without proper protection during processing, they may crack. Therefore, the soft pad 12 is provided, which provides some protection and transmits vibrations generated during processing. A connecting plate 14 is movably connected to the lower end of the slider 11 via a connecting rod 13. A slot is formed in the middle of the connecting plate 14, and a fixed rod 15 is movably connected thereto. The upper end of the fixed rod 15 is fixedly connected to the top of the inner wall of the workbench 1. A cylinder 16 is provided at the lower end of one of the sliders 11, and a horizontal plate 18 is fixedly connected to the lower end of the cylinder 16. The plate 18 is fixedly connected to the top of the inner wall of the worktable 1, so the horizontal plate 18 can support the cylinder 16. On the other side of the cylinder 16, there is a connecting block 17. The connecting block 17 is fixedly connected to the lower outer wall of one of the sliders 11. The cylinder 16 and the connecting block 17 are connected to each other and are on opposite sides. Therefore, when the cylinder 16 is started, the cylinder 16 will move the connecting block 17 on the other side laterally. At this time, the connecting block 17 will drive the slider 11 at its upper end to slide laterally on the inner wall of the slide groove 10. The connecting rod 13 is located at the corner of the connecting plate 14. Therefore, when the slider 11 is offset, it will drive the connecting rod 13 connected at the lower end to offset. At this time, it will drive the connecting plate 14 to rotate around the fixed rod 15 as the axis. This will drive the other connecting rods 13 and sliders 11 to offset. This will allow the four sliders 11 to move longitudinally, thereby enabling precise clamping of aircraft parts.

[0026] Example 2: Please refer to Figure 1-2The worktable 1 has a support leg 2 fixedly connected to the lower outer wall. The worktable 1 has a drive device 19 fixedly connected to one outer wall. The drive device 19 has a movable plate 3 movably connected to one outer wall. The movable plate 3 has a motor 4 fixedly connected to the upper outer wall. The motor 4 has a threaded rod 5 connected to one side. The threaded rod 5 has a movable block 6 movably connected to one outer wall. The movable block 6 has a processing device 7 connected to the lower outer wall. The movable block 6 has a sensor 8 connected to the lower outer wall. The sensor 8 is located on both sides of the processing device 7 and is fixedly connected to the lower outer wall of the movable block 6. The worktable 1 has a controller 9 fixedly connected to the upper outer wall.

[0027] In this embodiment, a support leg 2 is fixedly connected to the lower end of the workbench 1, providing support. A drive device 19 is provided at both ends of one side of the outer wall of the workbench 1. A movable plate 3 is connected to one side of the outer wall of the drive device 19. Therefore, when the drive device 19 is activated, it drives the movable plate 3 to shift. A motor 4 is fixedly connected to one side of the outer wall of the movable plate 3. A threaded rod 5 is connected to one side of the motor 4. A movable block 6 is movably connected to one side of the outer wall of the threaded rod 5. A processing device 7 is fixedly connected to the lower end of one side of the outer wall of the movable block 6. The processing device 7 uses existing technology and will not be described in detail. Two sensors 8 are fixedly connected to the lower end of one side of the outer wall of the movable block 6. The processing device 19 and the sensor 8 are respectively located on both sides of the processing device 7. The lower ends of the processing device 7 and the sensor 8 are connected to the upper end of the worktable 1. Therefore, when the motor 4 is started, the motor 4 will drive the threaded rod 5 to rotate, which will then drive the processing device 7 and the sensor 8 connected to the movable block 6 to shift. At this time, the position is determined by the scanning of the sensor 8. Then the processing device 7 is started, and the processing device 7 will perform processing operations on the aircraft parts placed at the lower end. A controller 9 is fixedly connected to the outer wall of one side of the upper end of the worktable 1. The controller 9 can drive the device 19 to operate. By using the drive device 19 and the motor 4, the device can be more flexible and can perform processing operations on different positions of different aircraft parts.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] 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.

Claims

1. A precision machining fixture for aircraft parts, including a worktable (1), characterized in that: The workbench (1) is provided with a slide groove (10). A slider (11) is movably connected to one side of the inner wall of the slide groove (10). A soft pad layer (12) is fixedly connected to one side of the outer wall of the slider (11). A connecting rod (13) is movably connected to the lower end of the slider (11). A connecting plate (14) is movably connected to the side of the connecting rod (13) away from the slider (11). A fixing rod (15) is movably connected to the middle of the connecting plate (14). A connecting block (17) is fixedly connected to the lower outer wall of the slider (11). A cylinder (16) is connected to one side of the connecting block (17). A horizontal plate (18) is fixedly connected to the lower end of the cylinder (16).

2. The precision machining fixture for aircraft parts according to claim 1, characterized in that: The workbench (1) has a support foot (2) fixedly connected to the lower outer wall. The workbench (1) has a drive device (19) fixedly connected to one side outer wall. The drive device (19) has a movable plate (3) movably connected to one side outer wall. The movable plate (3) has a motor (4) fixedly connected to the upper outer wall. The motor (4) has a threaded rod (5) connected to one side. The threaded rod (5) has a movable block (6) movably connected to one side outer wall. The movable block (6) has a processing device (7) connected to the lower outer wall. The movable block (6) has a sensor (8) connected to the lower outer wall. The workbench (1) has a controller (9) fixedly connected to one side outer wall.

3. The precision machining fixture for aircraft parts according to claim 2, characterized in that: The sensor (8) is located on both sides of the processing device (7) and is fixedly connected to the lower end of the outer wall of one side of the movable block (6).

4. The precision machining fixture for aircraft parts according to claim 1, characterized in that: The upper end of the fixed rod (15) is fixedly connected to the lower outer wall of the workbench (1).

5. The precision machining fixture for aircraft parts according to claim 1, characterized in that: The upper end of the horizontal plate (18) is fixedly connected to the lower outer wall of the workbench (1).

6. The precision machining fixture for aircraft parts according to claim 1, characterized in that: The sliders (11) are arranged in a ring array of four, and are slidably connected to the inner wall of the grooves (10) opened on the worktable (1).

7. The precision machining fixture for aircraft parts according to claim 1, characterized in that: The cylinder (16) provided on one side of the connecting block (17) is located on the opposite side of the connecting block (17) and is fixedly connected to the horizontal plate (18).

8. The precision machining fixture for aircraft parts according to claim 1, characterized in that: The connecting rods (13) are provided in four parts and arranged in a ring on the upper part of the outer wall of the connecting plate (14).

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