A clamp for adjusting aviation parts machining

Abstract

The utility model relates to the technical field of fixture for aviation part machining, concretely to a fixture for aviation part machining convenient to adjust, including base, support plate, clamping component, through screw drive slider linkage multiple groups of rotary lever, realize the multi -angle adjustment of rotary plate, and the self -adaptation part curved surface of fitting board under the spring effect, solve the pain point that traditional fixture adjustment rigid, cannot adapt to the concave -convex structure, fitting board and part surface overall fit, avoid partial suspension or stress concentration, cooperate rubber pad and enhance the clamping stability, prevent the part deviation when processing, satisfy the machining precision requirement of aviation part strict, only through the rotation screw can complete angle and clamping adjustment, need not complex tool, rubber pad buffering protection, avoid part surface scratch, deformation, adapt high -strength alloy, composite material and so on special material part, can flexible adaptation different curved surface profile, concave -convex structure's special -shaped aviation part.

Description

Technical Field

[0001] This utility model relates to the field of fixtures for machining aerospace parts, specifically a fixture for machining aerospace parts that is easy to adjust. Background Technology

[0002] As is well known, in the field of aerospace manufacturing, aerospace parts are often designed with irregular shapes due to functional requirements. These parts have complex structures, no unified reference surface, and are mostly made of high-strength alloys and composite materials, requiring extremely high machining accuracy. As the core auxiliary equipment for aerospace part machining, fixtures need to achieve precise positioning and stable clamping of irregular parts to ensure that the parts do not shift or deform during machining, thus ensuring machining accuracy and operational safety. Therefore, stringent requirements are placed on the adaptability, clamping fit, and adjustment convenience of fixtures.

[0003] Existing fixtures for machining aerospace parts have significant shortcomings when adapting to irregularly shaped parts. The adjustment mechanism is rigid, and the adjustment range of clamping angle and position is limited. They cannot be flexibly adjusted according to the curved contours and concave-convex structures of irregularly shaped parts, resulting in poor contact between the clamping components and the part surface, making it difficult to form a comprehensive and stable clamping. Secondly, the clamping structure design is simple, mostly with a flat or fixed-curvature clamping surface, which cannot adapt to the irregular shape of irregularly shaped parts. This can easily lead to local suspension or concentrated stress points, which in turn can cause the parts to loosen and shift during machining, affecting accuracy. Utility Model Content

[0004] In order to overcome the problem that existing jigs for machining aerospace parts cannot be flexibly adjusted according to the curved contours and concave-convex structures of irregular parts, this utility model provides a jig for machining aerospace parts that is easy to adjust.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a jig for machining aerospace parts that is easy to adjust, comprising: Base; Support plates, the support plates being fixedly disposed on both sides of the top of the base; and A clamping assembly is mounted on the support plate. The clamping assembly includes a driving assembly mounted on the support plate. A rotating plate is rotatably disposed on the driving assembly, and fitting plates are rotatably disposed at both ends of the rotating plate. The rotating plate and the fitting plates are adapted to each other.

[0006] Preferably, mounting seats are fixedly provided on both sides of the top of the rotating plate, and a rotating shaft is rotatably provided between the mounting seats. A connecting block is fixedly provided at the bottom of the bonding plate, and the connecting block is rotatably provided with the rotating shaft.

[0007] Furthermore, a spring is fixedly disposed between the mounting bases, and the spring is sleeved on the rotating shaft and fixedly disposed with the bonding plate.

[0008] Furthermore, the drive assembly includes a mounting shaft, which is rotatably mounted on both sides of the support plate. A first rotating rod is rotatably mounted on the mounting shaft, with one end of the first rotating rod rotatably mounted to the rotating plate. A sliding groove is provided at the bottom of the first rotating rod, and a connecting column is rotatably mounted in the sliding groove. A lifting rod is slidably mounted between the sliding grooves, and the lifting rod and the connecting column are slidably mounted through the sliding grooves.

[0009] In a further embodiment, a lifting column is fixedly installed at the bottom of the lifting rod, and an installation groove is provided at the bottom of the lifting column, in which a second rotating rod is rotatably installed.

[0010] Based on the aforementioned scheme, a slide rail is provided on the base, a slider is slidably arranged in the slide rail, a connecting frame is fixedly provided on the top of the slider, and the connecting frame is rotatably arranged with the second rotating rod.

[0011] Furthermore, based on the aforementioned scheme, a screw is rotatably installed inside the slide rail, and the screw is connected to the slider by a thread.

[0012] Furthermore, based on the aforementioned scheme, rubber pads are fixedly provided on both the rotating plate and the bonding plate. Beneficial effects

[0013] This easily adjustable aerospace parts machining fixture uses a screw-driven slider linked with multiple rotating rods to achieve multi-angle adjustment of the rotating plate. The mating plate adapts to the curved surface of the part under the action of springs, solving the pain points of traditional fixtures' rigid adjustment and inability to adapt to concave and convex structures. The mating plate fully conforms to the surface of the part, avoiding local suspension or concentrated force. Rubber pads enhance clamping stability and prevent part displacement during processing, meeting the stringent machining accuracy requirements of aerospace parts. Angle and clamping adjustments can be completed simply by rotating the screw, without the need for complex tools. Rubber pads provide cushioning and protection, preventing scratches and deformation of the part surface. It is suitable for parts made of special materials such as high-strength alloys and composite materials, and can flexibly adapt to irregularly shaped aerospace parts with different curved contours and concave and convex structures. There is no need to change fixture components, reducing equipment investment costs and improving processing efficiency. Attached Figure Description

[0014] Figure 1 This is a side view of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the clamping assembly of this utility model.

[0016] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0017] Figure 4 This is a schematic diagram of the structure of the drive component of this utility model.

[0018] Figure 5 This is a schematic diagram of the slide of this utility model.

[0019] In the diagram: 1. Base; 2. Support plate; 3. Clamping assembly; 4. Drive assembly; 5. Rotating plate; 6. Adhesive plate; 7. Mounting seat; 8. Rotating shaft; 9. Connecting block; 10. Spring; 11. Mounting shaft; 12. First rotating rod; 13. Sliding groove; 14. Connecting column; 15. Lifting rod; 16. Lifting column; 17. Mounting groove; 18. Second rotating rod; 19. Slide rail; 20. Slider; 21. Connecting frame; 22. Screw; 23. Rubber pad. Detailed Implementation

[0020] 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.

[0021] See Figures 1-5 An easily adjustable jig for machining aerospace parts is disclosed. A base 1 serves as the foundation of the jig, with support plates 2 fixed on both sides of the top. A clamping assembly 3 is mounted on the support plates 2. The clamping assembly 3 includes a drive assembly 4, a rotating plate 5, and a contact plate 6. The base 1 contains a screw 22, a slider 20, and a linkage assembly. A spring 10 is installed between the rotating plate 5 and the contact plate 6. A protective pad is provided on the clamping surface. The drive assembly 4 drives the slider 20 via the screw 22, which in turn drives multiple sets of rotating rods to adjust the rotating plate 5 at multiple angles. The contact plate 6 adapts to the curved contour of the part under the action of the spring 10. The protective pad enhances the fit and protection. Through the synergy of multi-angle adjustment, adaptive fit, convenient drive, and buffer protection, the various components solve the problems of rigid adjustment and poor fit of traditional jigs, achieving precise positioning and stable clamping of irregularly shaped aerospace parts, ensuring machining accuracy, and adapting to the machining needs of aerospace parts with different curved surfaces and concave-convex structures.

[0022] First, refer to Figure 1In this embodiment, the base 1 is a flat plate structure with high overall rigidity, which can stably support the support plate 2, the clamping component 3 and the processed aerospace parts. It will not deform even under long-term processing pressure and adjustment force, providing a stable foundation for the installation and operation of the fixture. The base 1 has a sliding groove 13 to provide installation space for the slider 20 and the screw 22, ensuring smooth linkage of the drive component 4. The structural design of the sliding groove 13 makes the slider 20 move smoothly without deviation.

[0023] The support plates 2 are fixed on both sides of the top of the base 1 and are symmetrically distributed to provide a vertical mounting reference for the clamping assembly 3. The height and spacing of the support plates 2 are adapted to aerospace parts of different sizes, ensuring that the clamping assembly 3 has sufficient adjustment and working space, while enhancing the overall rigidity of the fixture, avoiding structural loosening due to vibration during processing, and ensuring clamping stability.

[0024] Then, refer to Figure 2 In this embodiment, the clamping assembly 3 is mounted on the support plate 2 and is the key to achieving adaptive fitting. It includes a rotating plate 5, a fitting plate 6, a spring 10, and a protective pad. The rotating plate 5 is rotatably connected to the driving assembly 4 and can achieve multi-angle flipping under the driving action to adjust the clamping angle with the part, adapt to different inclined surfaces of irregular parts, and avoid local suspension during clamping. The structural design of the rotating plate 5 ensures flexible adjustment and reliable locking, and the angle will not shift due to force during processing.

[0025] The bonding plate 6 is rotatably connected to the mounting base 7 on the top of the rotating plate 5 via the rotating shaft 8, and can flexibly adjust its own angle. The spring 10 is sleeved on the rotating shaft 8 and fixedly connected to the bonding plate 6. In its natural state, it pushes the bonding plate 6 towards the part to bond with it, so that the bonding plate 6 can automatically adjust its posture according to the curved contour and concave-convex structure of the part to achieve full bonding and avoid the concentration of force points.

[0026] The protective pad is fixed on the clamping surface of the rotating plate 5 and the bonding plate 6, which can enhance the friction with the surface of the part, improve the clamping stability, prevent the part from sliding during processing, and buffer the clamping force to avoid scratches and deformation of the part surface caused by rigid contact. It is suitable for the protection needs of parts made of special materials such as high-strength alloys and composite materials.

[0027] Secondly, see Figure 4 In this embodiment, the drive component 4 provides power for clamping angle adjustment, enabling convenient and precise adjustment. It includes a screw 22, a slider 20, a connecting frame 21, a rotating rod, and a lifting component. The screw 22 is rotatably mounted in the slide rail 19 of the base 1 and is threadedly connected to the slider 20. Rotating the screw 22 can drive the slider 20 to move horizontally along the slide rail 19. The screw 22 has high transmission precision and can accurately control the movement distance of the slider 20, providing precise power support for subsequent angle adjustment.

[0028] The top of the slider 20 is fixed with a connecting frame 21, which is rotatably connected to one end of the second rotating rod 18. The other end of the second rotating rod 18 is rotatably connected to the mounting groove 17 at the bottom of the lifting column 16. The top of the lifting column 16 is fixed with a lifting rod 15. When the slider 20 moves, the second rotating rod 18 pushes the lifting column 16 and the lifting rod 15 to move up and down, thereby driving the first rotating rod 12 to move.

[0029] One end of the first rotating rod 12 is rotatably connected to the rotating plate 5, and the other end is rotatably mounted on the support plate 2 via the mounting shaft 11. A sliding groove 13 is opened at the bottom, and the connecting column 14 in the groove slides in cooperation with the sliding groove of the lifting rod 15. When the lifting rod 15 moves up and down, it drives the first rotating rod 12 to rotate around the mounting shaft 11, thereby driving the rotating plate 5 to flip and realize the adjustment of the clamping angle.

[0030] See again Figure 3 In this embodiment, the linkage and elastic components ensure smooth adjustment and tight fit, including a rotating shaft 8, a spring 10 and a connecting structure. The rotating shaft 8 is fixed between the mounting base 7 of the rotating plate 5 and the connecting block 9 at the bottom of the bonding plate 6 rotates and engages with the rotating shaft 8, ensuring that the bonding plate 6 can be flexibly flipped and adapt to the curved surface of the part. The connection of the rotating shaft 8 is smooth and without jamming, ensuring the adjustment sensitivity of the bonding plate 6.

[0031] Spring 10 is sleeved on rotating shaft 8, and its two ends are fixedly connected to bonding plate 6. It can continuously provide elastic pressure to bonding plate 6, pushing bonding plate 6 to tightly adhere to the surface of part. Even if the surface of part has slight unevenness, it can achieve full contact through the deformation of spring 10, avoiding clamping loosening caused by partial suspension.

[0032] The rotation and sliding connections between each rotating rod, lifting component, and slider 20 form a complete linkage system, ensuring that the rotational motion of the screw 22 can be smoothly converted into the angle adjustment of the rotating plate 5. The actions of each component are coordinated and there is no interference, ensuring a stable and precise adjustment process.

[0033] Finally, see Figure 4 In this embodiment, the protective component provides safety protection for the aerospace parts during the processing. It is mainly a protective pad fixed on the clamping surface of the rotating plate 5 and the bonding plate 6. The protective pad can buffer the clamping force and prevent the parts from deforming due to excessive clamping. At the same time, it prevents the surface of the parts from being scratched by direct friction between the parts and the clamping surface during processing. It is especially suitable for the protection requirements of the precision surface of aerospace parts.

[0034] The protective pad design enhances the friction of the clamping surface, allowing the parts to remain stable in position during high-speed machining and vibration environments, preventing slippage and displacement, further ensuring machining accuracy, reducing the probability of part damage, and lowering production costs.

[0035] When using this easily adjustable aerospace parts processing fixture, first check whether the connections of each component are firm, the base 1 and the support plate 2 are securely fixed without looseness, the rotating plate 5 and the contact plate 6 of the clamping assembly 3 rotate smoothly without jamming, the screw 22 of the drive assembly 4 rotates flexibly, the slider 20 and the sliding groove 13 fit tightly, the spring 10 has normal elasticity without deformation or breakage, the protective pad is undamaged or detached, and each rotating rod and connecting column 14 fits smoothly with the sliding groove without jamming.

[0036] Clean the metal shavings, dust and other impurities from the surfaces of the base 1, support plate 2 and clamping components 3, and ensure that there are no residual objects in the sliding groove 13 and rotating connection to avoid affecting the adjustment accuracy. Wipe the surface of the protective pad to remove the attached dirt and ensure the protective and fitting effect.

[0037] Based on the structural dimensions of the irregularly shaped parts to be processed, rotate screw 22 to test the linkage effect of drive component 4, check whether the adjustment angle range of rotating plate 5 is suitable for the parts, manually press bonding plate 6 to test the elastic recovery performance of spring 10, and ensure that bonding plate 6 can flexibly adapt without jamming.

[0038] The irregularly shaped aerospace parts are placed smoothly in the clamping area above the base 1, ensuring that the parts to be machined are exposed and that the non-machined surfaces are aligned with the protective pads of the rotating plate 5 and the bonding plate 6 to avoid obstructing or damaging the parts during machining. The placement process is done gently to prevent the parts from colliding with the fixtures or being damaged themselves.

[0039] Rotating the screw 22 drives the slider 20 to move along the sliding groove 13, which in turn drives the lifting rod 15 to move up and down through the linkage component, thereby driving the first rotating rod 12 to rotate, causing the rotating plate 5 to flip to the initial clamping angle, so that the protective pad of the rotating plate 5 is initially in contact with the surface of the part, without needing to be fully clamped.

[0040] Release the manual adjustment, and the bonding plate 6 will automatically adjust its angle under the action of the spring 10 to fully fit the curved surface or concave and convex structure of the part, achieving a seamless fit. Continue to rotate the screw 22 and finely adjust the angle of the rotating plate 5 until the part is stably clamped. Gently pull the part to confirm that there is no looseness or deviation, the clamping force is moderate, and the part is not damaged.

[0041] The adjusted fixture and the part are fixed together on the processing equipment to ensure that the fixture is installed firmly and without shaking. The processing equipment is started to carry out cutting, grinding and other processing steps. During the processing, the bonding plate 6 is continuously bonded to the part under the action of the spring 10, the protective pad enhances stability, and the rotating plate 5 and the drive component 4 lock the angle to prevent the part from shifting.

[0042] During processing, observe the condition of the fixture and the part, check that the clamping assembly 3 is not loose, the spring 10 is not abnormally deformed, and the protective pad is not detached. If a slight offset of the part is found, the angle can be corrected by adjusting the screw 22 to ensure processing accuracy. If abnormal vibration or noise occurs, stop processing immediately, troubleshoot the fault, and then continue.

[0043] If a part needs to be machined on multiple surfaces, there is no need to disassemble the part. Simply loosen the screw 22, adjust the angle of the rotating plate 5, and re-clamp and position it. This avoids accuracy deviations caused by repeated disassembly and improves processing efficiency.

[0044] After processing, rotate screw 22 in the opposite direction to drive rotating plate 5 and bonding plate 6 to loosen the part. Gently remove the processed part and place it in a special storage container to avoid collision damage.

[0045] Clean the surface of the fixture, removing metal shavings, cutting fluid, and other impurities. Pay special attention to cleaning the sliding groove 13, the rotating connection, and the clamping surface to ensure no residue remains. Wipe the protective pad to remove any attached oil and debris. If the protective pad is severely worn, replace it promptly. Check the elasticity of the spring 10. If the elasticity decreases or it deforms, replace it promptly. Clean the threads of the screw 22 and the slider 20, and apply lubricating oil to ensure smooth adjustment.

[0046] Return the rotating plate 5 and the bonding plate 6 to their initial positions, reset the screw 22, move the slider 20 to the middle of the base 1, and place the fixture in a dry and clean storage area to avoid moisture and dust affecting the performance of the components and prepare it for the next use.

[0047] 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 jig for machining aerospace parts that is easy to adjust, characterized in that, include: Base (1); Support plate (2), the support plate (2) is fixedly installed on both sides of the top of the base (1); as well as A clamping assembly (3) is mounted on the support plate (2). The clamping assembly (3) includes a driving assembly (4). The driving assembly (4) is mounted on the support plate (2). A rotating plate (5) is rotatably mounted on the driving assembly (4). Adhesive plates (6) are rotatably mounted at both ends of the rotating plate (5). The rotating plate (5) and the adhesive plates (6) are adapted to each other.

2. The easily adjustable jig for machining aerospace parts according to claim 1, characterized in that, Mounting seats (7) are fixedly provided on both sides of the top of the rotating plate (5), and a rotating shaft (8) is rotatably provided between the mounting seats (7). A connecting block (9) is fixedly provided at the bottom of the bonding plate (6), and the connecting block (9) is rotatably provided with the rotating shaft (8).

3. The easily adjustable jig for machining aerospace parts according to claim 2, characterized in that, A spring (10) is fixedly disposed between the mounting bases (7), and the spring (10) is sleeved on the rotating shaft (8) and fixedly disposed with the bonding plate (6).

4. The easily adjustable jig for machining aerospace parts according to claim 3, characterized in that, The drive assembly (4) includes a mounting shaft (11), which is rotatably disposed on both sides of the support plate (2). A first rotating rod (12) is rotatably disposed on the mounting shaft (11). One end of the first rotating rod (12) is rotatably disposed with the rotating plate (5). A sliding groove (13) is provided at the bottom of the first rotating rod (12). A connecting column (14) is rotatably disposed in the sliding groove (13). A lifting rod (15) is slidably disposed between the sliding grooves (13). The lifting rod (15) and the connecting column (14) are slidably disposed through the sliding groove.

5. The easily adjustable jig for machining aerospace parts according to claim 4, characterized in that, The bottom of the lifting rod (15) is fixedly provided with a lifting column (16), and the bottom of the lifting column (16) is provided with an installation groove (17), and a second rotating rod (18) is rotatably provided in the installation groove (17).

6. The easily adjustable jig for machining aerospace parts according to claim 5, characterized in that, The base (1) is provided with a slide (19), and a slider (20) is slidably arranged in the slide (19). A connecting frame (21) is fixedly arranged on the top of the slider (20), and the connecting frame (21) is rotatably arranged with the second rotating rod (18).

7. The easily adjustable jig for machining aerospace parts according to claim 6, characterized in that, A screw (22) is rotatably disposed inside the slide rail (19), and the screw (22) and the slider (20) are connected by a thread.

8. The easily adjustable jig for machining aerospace parts according to claim 7, characterized in that, Rubber pads (23) are fixedly installed on both the rotating plate (5) and the bonding plate (6).

Images