An aircraft skin machining device

Abstract

The application relates to the technical field of skin processing, and particularly discloses an aircraft skin processing device, which comprises a supporting table, two clamping mechanisms for positioning the skin are slidably arranged on the two sides of the supporting table, and a driving mechanism for driving the clamping mechanisms to move is arranged on the inner top wall of the supporting table; the clamping mechanism comprises a clamping assembly which is screw-connected to the driving mechanism and a rotating assembly which is rotatably connected to the clamping assembly; the clamping assembly comprises a sliding plate which is slidably connected to the supporting table, a baffle which is rotatably connected to the sliding plate, a stopper which is vertically and elastically slidably connected to the top of the sliding plate, a clamping piece which is slidably connected to the stopper and a telescopic rod which is arranged on the clamping piece, and a torsional spring is arranged between the sliding plate and the baffle; the aircraft skin processing device can realize rapid positioning of the skin, the position of the skin does not need to be repeatedly adjusted on the supporting table, the skin and the supporting table are prevented from being abraded, and the processing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of skin processing technology, and more specifically to an aircraft skin processing apparatus. Background Technology

[0002] Aircraft skin refers to the shaped components that surround the aircraft's frame structure and are fixed to the frame with adhesives or rivets, forming the aircraft's aerodynamic shape. The skin structure, formed by the aircraft skin and frame, has high load-bearing capacity and rigidity, yet is very lightweight, serving to bear and transmit aerodynamic loads. After bearing aerodynamic forces, the skin transmits these forces to the connected fuselage and wing frames, resulting in complex stress distribution. Furthermore, since the skin is in direct contact with the external environment, it requires not only high strength and good plasticity of the skin material, but also a smooth surface and high corrosion resistance. Aircraft skin processing is one of the core processes in aircraft manufacturing. It refers to the process of processing metal or composite material sheets into aircraft external surface components that meet aerodynamic requirements through a series of machining, forming, joining, and surface treatment processes. During the processing, the aircraft skin needs to be fixed in place using tooling to facilitate subsequent machine tool operations.

[0003] like Figure 1 The aircraft skin processing fixture shown includes a support platform 11 and two sets of clamps 20. The two sets of clamps 20 are respectively installed on both sides of the support platform 11. When processing the skin, the skin is first placed against one side of the support platform 11. After being adjusted to the designated position, the skin is fixed to the support platform 11 by the clamps 20. Then the skin is placed against the other side of the support platform 11 and fixed by the clamps 20, thereby achieving the clamping of the skin.

[0004] However, the structural design of the aforementioned technologies requires repeated adjustments to the position of the aircraft skin on the tooling during the process of fixing the aircraft skin to the tooling to ensure that the aircraft skin can be placed in the designated position. This makes it inconvenient to quickly position the two sides of the aircraft skin. This will not only cause wear and tear on the aircraft skin and tooling, affecting the processing quality, but also affect the processing efficiency.

[0005] Therefore, an aircraft skin processing device is proposed to solve the problems mentioned above. Summary of the Invention

[0006] This invention provides an aircraft skin processing device, which aims to solve the problem of inconvenience in quickly positioning aircraft skin in related technologies.

[0007] The aircraft skin processing apparatus of the present invention includes a support platform, on both sides of which two clamping mechanisms for positioning the skin are slidably arranged, and the inner top wall of the support platform is provided with a driving mechanism for moving the clamping mechanisms.

[0008] The clamping mechanism includes a clamping assembly threadedly connected to the drive mechanism and a rotating assembly rotatably connected to the clamping assembly; the clamping assembly includes a slide plate slidably connected to the support platform, a baffle rotatably connected to the slide plate, a stop block vertically and elastically slidably connected to the top of the slide plate, a clamping member slidably connected to the stop block, and a telescopic rod installed on the clamping member; a torsion spring is provided between the slide plate and the baffle, and a connecting post is slidably connected to the rotating assembly on the telescopic rod;

[0009] The rotating assembly includes a rotating rod rotatably connected to the slide plate and a spiral groove formed on the rotating rod. The connecting column is slidably connected in the spiral groove. When the rotating rod rotates, the spiral groove drives the clamping member to move closer to the baffle through the connecting column to clamp the skin. The driving mechanism drives the clamped skin to move towards the support platform through the slide plate to position the skin.

[0010] During the processing of the skin, one side of the skin is first inserted between the baffle and the clamping component. At this time, the two sides of the skin can be limited by the stop on the slide plate to prevent the skin from sliding left and right on the slide plate. Then, the rotating rod is rotated, and the rotating rod drives the telescopic rod on the connecting column to move through the spiral groove. The telescopic rod drives the clamping component to move closer to the baffle to clamp the skin between the baffle and the clamping component. At this time, the two corners of the skin are positioned on the slide plate. Subsequently, the drive mechanism drives the slide plate to move, thereby driving the skin clamped on the slide plate to come into close contact with one side of the support table, so that the skin is in close contact with the support table. Finally, the skin is fixed on the support table.

[0011] Preferably, the top edge of the slide plate has a groove for accommodating the stop block and the clamping member, and the bottom of the stop block is fitted with an elastic sheet, the bottom of which is fitted into the groove of the slide plate.

[0012] Preferably, the side of the stop block facing the support platform has an arc-shaped surface, and both sides of the support platform are provided with grooves to accommodate the sliding plate.

[0013] As the skin moves toward the support platform, the drive mechanism drives the slide plate to move toward the interior of the support platform. When the slide groove contacts the stop block, as the slide plate continues to move, the slide groove presses the stop block into the interior of the slide plate. At the same time, the stop block drives the clamping parts into the slide plate so that the skin contacts the support platform. When the skin is fixed on the support platform, the slide plate continues to move. At this time, under the obstruction of the support platform, the baffle gradually turns to a horizontal state and enters the slide groove.

[0014] Preferably, the baffle is inclined, and the clamping member has an inclined surface on the side facing the baffle, and the inclined surface on the clamping member is adapted to the baffle.

[0015] The inclined surfaces on the clamping parts allow for better contact with the skin during clamping, ensuring stable clamping of the skin.

[0016] Preferably, the drive mechanism includes a motor, a pushing assembly, two adjusting assemblies, and two sliding rods. The motor is mounted on the inner top wall of the support platform. The pushing assembly is disposed on the output shaft of the motor. The two adjusting assemblies abut against both sides of the pushing assembly and are elastically connected to both sides of the inner wall of the support platform. The two sliding rods are mounted on the inner wall of the support platform and are slidably connected to the two adjusting assemblies.

[0017] Preferably, the pushing assembly includes a turntable and two protrusions. The turntable is mounted on the output shaft of the motor, and the two protrusions are mounted on the outer side of the turntable. The two protrusions can respectively push the two adjusting assemblies to move.

[0018] Preferably, the adjustment assembly includes a mounting bracket, a spring, and a bidirectional lead screw. The mounting bracket is slidably connected to the slide rod, the spring is installed between the mounting bracket and the inner wall of the support platform, the bidirectional lead screw is rotatably connected inside the mounting bracket, and two clamping mechanisms located on one side of the support platform are threadedly connected to both ends of the bidirectional lead screw.

[0019] When the slide plate needs to extend out of the support platform, the motor drives two protrusions to rotate via the turntable. At this time, one of the protrusions can push the mounting bracket close to itself to move and compress the spring, thereby driving the slide plate to move and extend out of the support platform through the mounting bracket. When the protrusion gradually moves away from the mounting bracket, the spring can drive the mounting bracket to reset, thereby driving the slide plate to move into the slide groove, so as to put the slide plate into the slide groove and avoid affecting the subsequent processing of the skin.

[0020] Preferably, the clamping mechanism further includes a fixed frame and a threaded block. The fixed frame is mounted on the top of the slide plate and slidably connected to the adjusting assembly. The threaded block is mounted on the fixed frame and threadedly connected to the bidirectional lead screw.

[0021] By rotating the bidirectional lead screw, the threaded block can be moved. The threaded block, through the fixed frame, can move the two slide plates closer or further apart, thereby adjusting the position between the two slide plates to accommodate skins of different widths.

[0022] Preferably, one end of the rotating rod passes through the slide plate and extends to the outside of the slide plate, and a gear is installed at the end of the rotating rod that passes through the slide plate. One side of the gear is meshed with an adjustment mechanism installed on the inner bottom wall of the support platform.

[0023] Preferably, the adjusting mechanism includes a cylinder, a mounting plate, two guide rails (first type), two guide rails (second type), and four racks. The fixed end of the cylinder is mounted on the inner bottom wall of the support platform, the mounting plate is mounted on the movable end of the cylinder, the two guide rails (first type) are respectively mounted on both sides of the mounting plate, the two guide rails (second type) are slidably connected to the two guide rails (first type), and every two racks are slidably connected to one guide rail (second type). The gear on each clamping mechanism meshes with each rack.

[0024] When the skin is inserted between the baffle and the clamping component, the cylinder is activated. At this time, the cylinder drives the rack on the second guide rail to move upward through the first guide rail on the mounting plate. During the upward movement of the rack, it can drive the rotating rod to rotate through the gear. The rotating rod drives the connecting column to move through the threaded groove on it, thereby driving the clamping component to move towards the baffle and clamp the skin.

[0025] The beneficial effects of the present invention, achieved by adopting the above technical solution, are as follows: During skin processing, one side of the skin is first inserted between the baffle and the adjustable clamping member. At this time, the two sides of the skin are limited by the stop on the slide plate, preventing the skin from sliding left and right on the slide plate. Then, the rotating rod is rotated, and the rotating rod drives the telescopic rod on the connecting column to move through the spiral groove. The telescopic rod drives the clamping member to gradually approach the baffle, clamping the skin between the baffle and the clamping member. At this time, the two corners of the skin are positioned on the slide plate. Subsequently, the drive mechanism is activated, and the drive mechanism drives the slide plate to move. The slide plate moves the skin clamped on it together until the skin is tightly against one side of the support table, making the skin and the support table in close contact. Finally, the skin is fixed to the support table using a fixing tool, ensuring that the skin will not shift during the entire processing process. This achieves rapid positioning of the skin, eliminating the need to repeatedly adjust the position of the skin on the support table, avoiding wear on the skin or the support table, and improving processing efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the existing technology.

[0027] Figure 2 This is a schematic diagram of the overall structure of a specific embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the support platform according to a specific embodiment of the present invention.

[0029] Figure 4 This is a schematic diagram of the clamping mechanism in a specific embodiment of the present invention.

[0030] Figure 5 Specific embodiments of the present invention Figure 4 A magnified structural diagram of point A in the middle.

[0031] Figure 6 This is a schematic diagram of the internal structure of a skateboard according to a specific embodiment of the present invention.

[0032] Figure 7 This is a schematic diagram of the rotating assembly in a specific embodiment of the present invention.

[0033] Figure 8 This is a schematic diagram of the drive mechanism in a specific embodiment of the present invention.

[0034] Figure 9 This is a schematic diagram of the structure of the jacking assembly in a specific embodiment of the present invention.

[0035] Figure 10 Specific embodiments of the present invention Figure 8 A magnified structural diagram at point B in the middle.

[0036] Figure 11 This is a schematic diagram of the adjustment mechanism in a specific embodiment of the present invention.

[0037] Figure label:

[0038] 10. Support mechanism; 11. Support platform; 12. Slide groove; 13. Mounting groove;

[0039] 20. Pliers;

[0040] 30. Clamping mechanism; 31. Clamping assembly; 311. Slide plate; 312. Baffle; 313. Stop block; 314. Clamping component; 315. Elastic sheet; 316. Telescopic rod; 317. Slider 1; 318. Connecting column; 32. Fixing frame; 33. Threaded block; 34. Rotating assembly; 341. Gear; 342. Rotating rod; 343. Spiral groove; 35. Limiting plate;

[0041] 40. Drive mechanism; 41. Support plate; 42. Motor; 43. Pushing assembly; 431. Turntable; 432. Connecting rod; 433. Protrusion; 44. Adjustment assembly; 441. Mounting bracket; 442. Slider II; 443. Spring; 444. Double-acting lead screw; 45. Slide rod;

[0042] 50. Adjustment mechanism; 51. Cylinder; 52. Mounting plate; 53. Guide rail one; 54. Guide rail two; 55. Rack. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0044] like Figures 2 to 11As shown, the aircraft skin processing apparatus of the present invention includes a support mechanism 10, clamps 20, holding mechanisms 30, a drive mechanism 40, and an adjustment mechanism 50. The support mechanism 10 is placed in a machine tool. There are two sets of clamps 20, each set being disposed on both sides of the support mechanism 10. There are two sets of holding mechanisms 30, each set containing two clamping mechanisms, which are slidably connected to the inner sides of the support mechanism 10. In the initial state, one set of holding mechanisms 30 extends out of the support mechanism 10, while the other set is located within the support mechanism 10. The drive mechanism 40 is disposed on the inner top wall of the support mechanism 10, and the adjustment mechanism 50 is disposed on the inner bottom wall of the support mechanism 10. Both sets of holding mechanisms 30 are mounted on the drive mechanism 40, which drives the two holding mechanisms 30 to slide on the support mechanism 10. The adjustment mechanism 50 engages with the two sets of holding mechanisms 30 to clamp the skin.

[0045] During the processing of the skin, the operator first inserts one edge of the skin into the clamping mechanism 30 extending from the support mechanism 10. Then, the adjustment mechanism 50 is activated, which in turn drives the clamping mechanism 30 to clamp the edge of the skin, preventing slippage or displacement. Once the clamping mechanism 30 has clamped the skin, the drive mechanism 40 moves the clamping mechanism 30 into the support mechanism 10, causing the skin to adhere to the support mechanism 10, ensuring a flat surface. Then, the clamp 20 secures one edge of the skin to the support mechanism 10. When the clamping mechanism 30 is fully inserted into the support mechanism 10, another set of clamping mechanisms 30 extends out of the support mechanism 10. At this point, the operator can follow the same steps to clamp and secure the other edge of the skin, quickly and accurately completing the overall positioning and fixation of the skin.

[0046] like Figures 2 to 3 As shown, the support mechanism 10 includes a support platform 11 and a sliding groove 12. There are two sliding grooves 12, one on each side of the support platform 11, and two sets of clamping mechanisms 30 are slidably disposed within each of the two sliding grooves 12. The support platform 11 also has an installation groove 13 inside, with a drive mechanism 40 disposed on the inner top wall of the installation groove 13 and an adjustment mechanism 50 disposed on the inner bottom wall of the installation groove 13.

[0047] like Figures 2 to 4As shown, the clamping mechanism 30 includes a clamping assembly 31, a fixing frame 32, a threaded block 33, and a rotating assembly 34. The clamping assemblies 31 in the two clamping mechanisms 30 are slidably disposed on both sides inside the slide groove 12. The fixing frame 32 is L-shaped, with its vertical section mounted on the top side of the clamping assembly 31, and the threaded block 33 mounted on the horizontal section side of the fixing frame 32. The horizontal section of the fixing frame 32 is slidably disposed on the drive mechanism 40, and the threaded block 33 is threadedly connected to the drive mechanism 40. The rotating assembly 34 is rotatably connected inside the clamping assembly 31 and engages with the adjusting mechanism 50.

[0048] When positioning the skin, one edge of the skin is inserted into two clamping components 31 that have been pre-extended from the support platform 11. At this time, the two clamping components 31 can limit the two edges of the skin to prevent the skin from shifting later. Then, the adjusting mechanism 50 drives the rotating component 34 to rotate. During the rotation of the rotating component 34, the clamping components 31 can clamp the edge of the skin.

[0049] like Figures 2 to 6 As shown, the clamping assembly 31 includes a slide plate 311, a baffle 312, a stop block 313, a clamping member 314, an elastic sheet 315, a telescopic rod 316, a slider 317, and a connecting post 318. The slide plate 311 is mounted on the bottom of the fixing frame 32, and the baffle 312 is rotatably connected to one side of the slide plate 311. A torsion spring (not shown) is provided between the slide plate 311 and the baffle 312. In the initial state, in one set of clamping mechanisms 30, the angle of the baffle 312 is the same as the inclination angle of the side of the support platform 11. In the other set of clamping mechanisms 30, the baffle 312 is horizontally arranged and located in the slide groove 12. The stop block 313 is slidably connected to the top edge of the slide plate 311, and the top of the side of the stop block 313 facing the support platform 11 has an arc-shaped surface. The clamping member 314 is slidably connected to one side of the stop block 313, and the top of the slide plate 311 has a groove to accommodate the stop block 313 and the clamping member 314. The clamping member 314 has an inclined surface on the side facing the baffle 312, and the inclined surface on the clamping member 314 is adapted to the baffle 312 to clamp the skin. The top of the elastic piece 315 is mounted on the bottom of the stop block 313, and the bottom of the elastic piece 315 is mounted on the inner bottom wall of the groove of the slide plate 311.

[0050] The top end of the telescopic rod 316 is mounted on the bottom of the clamping member 314, and the slider 317 is mounted on the outside of the telescopic rod 316. The slide plate 311 has a groove inside for the telescopic rod 316 and the slider 317 to slide. The top end of the connecting post 318 is mounted on the bottom end of the telescopic rod 316, and the bottom end of the connecting post 318 is slidably disposed in the rotating assembly 34. When the rotating assembly 34 rotates, it can drive the connecting post 318 to move.

[0051] When clamping the skin, one edge of the skin is inserted between the baffle 312 and the clamping member 314. At this time, the side wall of the skin is limited by the stop block 313 to prevent it from shifting to the left or right. Then, the rotating component 34 is driven to rotate by the adjusting mechanism 50. During the rotation of the rotating component 34, the clamping member 314 is driven to move closer to the baffle 312 by the telescopic rod 316 on the connecting column 318. At this time, the force of the torsion spring on the baffle 312 and the pushing force of the clamping member 314 can clamp one edge of the skin so that the skin can be accurately attached to the support platform 11.

[0052] like Figure 2 and Figures 4 to 7 As shown, the rotating assembly 34 includes a gear 341, a rotating rod 342, and a helical groove 343. One end of the rotating rod 342 is rotatably connected to the inside of the slide plate 311, and the other end of the rotating rod 342 passes through the slide plate 311 and extends to the outside of the slide plate 311. The helical groove 343 is formed on the outside of one end of the rotating rod 342. The gear 341 is mounted on the outside of the other end of the rotating rod 342 and meshes with the adjusting mechanism 50. The other end of the rotating rod 342 is also rotatably connected to an L-shaped limiting plate 35, which is mounted on one side of the slide plate 311. In the initial state, the bottom end of the connecting post 318 is slidably connected to the inside of the first end of the helical groove 343.

[0053] When the skin is clamped, the adjusting mechanism 50 drives the rotating rod 342 to rotate, and the rotating rod 342 can drive the connecting post 318 to move through the spiral groove 343 on it. At this time, the connecting post 318 drives the clamping member 314 to move closer to the baffle 312 through the telescopic rod 316 to clamp the skin.

[0054] like Figures 2 to 4 and Figure 8 As shown, the drive mechanism 40 includes a support plate 41, a motor 42, a pushing assembly 43, an adjusting assembly 44, and a sliding rod 45. The support plate 41 is installed in the mounting groove 13 of the support platform 11. The top end of the motor 42 is installed on the inner top wall of the mounting groove 13, and the bottom end of the motor 42 is installed on the support plate 41. The pushing assembly 43 is rotatably connected to the bottom of the support plate 41, and the drive shaft of the motor 42 is connected to the pushing assembly 43. There are two adjusting assemblies 44 and two sliding rods 45. The two adjusting assemblies 44 are located on both sides of the pushing assembly 43 and are slidably connected to the two sliding rods 45. The two ends of the sliding rods 45 are installed on both sides of the inner wall of the mounting groove 13. The threaded blocks 33 in the two sets of clamping mechanisms 30 are threadedly connected to the two adjusting assemblies 44, and the two adjusting assemblies 44 are elastically connected to both sides of the inner wall of the mounting groove 13.

[0055] The motor 42 can drive the push assembly 43 to rotate. When the push assembly 43 rotates, it can push one of the adjustment components 44 closer to the inner wall of the mounting groove 13, while causing the other adjustment component 44 to gradually move away from the inner wall of the mounting groove 13.

[0056] When the pushing assembly 43 drives the adjusting assembly 44 to approach the inner wall of the mounting groove 13, the adjusting assembly 44 drives the sliding plate 311 to extend out of the sliding groove 12 through the fixing bracket 32 ​​on the threaded block 33, thereby causing the baffle 312 to extend out of the sliding groove 12, so as to change the baffle 312 from a horizontal state to an inclined state, which is convenient for clamping the skin.

[0057] When the jacking assembly 43 drives the adjusting assembly 44 to move away from the inner wall of the mounting groove 13, the adjusting assembly 44 drives the sliding plate 311 to move into the groove 12 via the fixing bracket 32 ​​on the threaded block 33. At the same time, the sliding plate 311 drives one edge of the skin to move closer to one side of the support platform 11. As the sliding plate 311 continues to move, it drives the stop block 313 to move into the groove 12. At this time, the groove 12 presses against the stop block 313, causing the stop block 313 to move down and fully enter the sliding plate 311. During the downward movement of the stop block 313, it also drives the clamping member 314 to move down. When the clamping member 314 is fully entered into the sliding plate 311, one edge of the skin abuts against the support platform 11.

[0058] Subsequently, the skin is clamped by the clamps 20 on one side of the support table 11 to complete the fixation of the skin. During the fixation process, there is no need to repeatedly adjust the position of the skin on the support table 11, which facilitates the rapid positioning of the skin, thereby saving loading time, improving processing efficiency, and reducing wear between the skin and the support table 11.

[0059] like Figures 8 to 9 As shown, the jacking assembly 43 includes a turntable 431, a connecting rod 432, and protrusions 433. The turntable 431 is mounted on the bottom end of the connecting rod 432, and the top end of the connecting rod 432 is connected to the drive shaft of the motor 42. The turntable 431 is located between two adjusting assemblies 44. There are two protrusions 433, both of which are mounted on the outer side of the turntable 431, and the included angle between the two protrusions 433 is 60 degrees to 90 degrees.

[0060] When the slide plate 311 needs to extend out of the groove 12 of the support platform 11, the motor 42 drives two protrusions 433 on the turntable 431 to rotate via the connecting rod 432. At this time, one of the protrusions 433 pushes the adjustment component 44 on its side to move, thereby causing the slide plate 311 on the adjustment component 44 to extend out of the groove 12 of the support platform 11. After one side of the skin is clamped on the slide plate 311 extending out of the groove 12, the motor 42 drives the turntable 431 to reverse direction via the connecting rod 432. At this time, the slide plate 311, together with the baffle 312 and the clamping component 314, causes the skin to come into contact with the support platform 11 and is fixed by the clamp 20. Subsequently, another protrusion 433 on the turntable 431 pushes another adjustment component 44 to move, thereby causing the slide plate 311 on the other adjustment component 44 to extend out of the groove 12 to clamp the other side of the skin. Then the motor 42 drives the turntable 431 to rotate clockwise via the connecting rod 432 to bring the other side of the skin into contact with the support platform 11. When both sides of the skin are fixed on the support platform 11, the turntable 431 continues to rotate, so that the slide plates 311 on the two adjustment components 44 enter the slide groove 12, which facilitates the subsequent processing of the skin.

[0061] like Figures 3 to 5 and Figures 8 to 10 As shown, the adjustment assembly 44 includes a mounting bracket 441, a second slider 442, a spring 443, and a double-acting screw 444. There are two sliders 442 and two springs 443. The two sliders 442 are respectively mounted on the bottom of the mounting bracket 441 and slidably connected to the outside of two sliding rods 45. The two springs 443 are respectively sleeved on the outside of one end of each sliding rod 45, with both ends of the springs 443 respectively installed between the mounting groove 13 and the second slider 442 to drive the mounting bracket 441 to reset. One end of the double-acting screw 444 is rotatably connected to one side of the inner wall of the mounting bracket 441, and the other end of the double-acting screw 444 passes through the mounting bracket 441 and extends to the outside of the mounting bracket 441. An adjustment shaft is mounted on the other end of the double-acting screw 444. The threaded blocks 33 on the two clamping assemblies 31 are threaded to both ends of the bidirectional lead screw 444. One side of the mounting bracket 441 is also provided with a groove for the fixed bracket 32 ​​to slide, and the other side of the mounting bracket 441 abuts against the turntable 431. Rotating the bidirectional lead screw 444 can adjust the distance between the two slide plates 311, which is convenient for accommodating skins of different widths.

[0062] When the turntable 431 starts to rotate, one of the protrusions 433 pushes the mounting bracket 441 towards the inner wall of the mounting groove 13. Then, the turntable 431 reverses direction and another protrusion 433 pushes the other mounting bracket 441 towards the inner wall of the mounting groove 13 in the same way, thus fixing the two sides of the skin to the support platform 11. After the skin is fixed to the support platform 11, the turntable 431 drives the two protrusions 433 to rotate clockwise. As the rotation continues, the two protrusions 433 gradually rotate to a position where they no longer contact the mounting bracket 441. At this point, the sliding plates 311 and baffles 312 equipped on the two mounting brackets 441 can smoothly enter the sliding groove 12 under the action of their own structural characteristics, thereby avoiding interference and influence on the processing during subsequent processing of the skin.

[0063] like Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 11 As shown, the adjusting mechanism 50 includes a cylinder 51, a mounting plate 52, a first guide rail 53, a second guide rail 54, and a rack 55. The fixed end of the cylinder 51 is mounted on the inner bottom wall of the mounting groove 13, and the mounting plate 52 is mounted on the movable end of the cylinder 51. There are two first guide rails 53 and two second guide rails 54. The two first guide rails 53 are respectively mounted on both sides of the mounting plate 52, and the two second guide rails 54 are slidably connected to the two first guide rails 53. There are four racks 55, and every two racks 55 are slidably connected to one second guide rail 54. The top of the rack 55 penetrates the bottom of the limiting plate 35 and extends into the interior of the limiting plate 35, and the gear 341 meshes with the rack 55.

[0064] When the skin needs to be clamped, the cylinder 51 drives the rack 55 on the guide rail 54 to move upward through the guide rail 53 on the mounting plate 52. At this time, the rack 55 drives the rotating rod 342 to rotate through the gear 341, so that the clamping member 314 moves closer to the skin to clamp it.

[0065] Working principle: When processing the skin, one edge of the skin is inserted between the baffle 312 and the clamping member 314. At this time, the two sides of the skin are limited by the stop block 313 to prevent it from shifting left and right. Then, the cylinder 51 drives the rack 55 on the guide rail 54 to move upward through the guide rail 53 on the mounting plate 52. At this time, the rack 55 drives the rotating rod 342 to rotate through the gear 341. The rotating rod 342 can drive the connecting column 318 to move through the spiral groove 343. At this time, the connecting column 318 drives the clamping member 314 to move closer to the baffle 312 through the telescopic rod 316 to clamp the skin.

[0066] Once one edge of the skin is clamped, the motor 42 drives the two protrusions 433 on the turntable 431 to rotate via the connecting rod 432. This causes the protrusions 433 to gradually move away from the inner wall of the mounting bracket 441, thus moving the slide plate 311 into the slide groove 12. As the slide plate 311 continues to move, it drives the stop block 313 into the slide groove 12. At this time, the slide groove 12 presses against the stop block 313, causing it to move downwards and fully enter the slide plate 311. During the downward movement of the stop block 313, it also drives the clamping member 314 downwards. When the clamping member 314 is fully inside the slide plate 311, one edge of the skin rests against the support platform 11. Subsequently, the skin is fixed by the clamp 20 on one side of the support platform 11, thus completing the fixation of the skin.

[0067] As turntable 431 continues to rotate, another protrusion 433 on turntable 431 pushes another mounting bracket 441 to move, thereby extending the sliding plate 311 on the other mounting bracket 441 out of the slide groove 12 to clamp the other side of the skin. Then, motor 42 drives turntable 431 to rotate clockwise via connecting rod 432, so that the other side of the skin is against the support table 11. When both sides of the skin are fixed on the support table 11, turntable 431 continues to rotate, and the sliding plates 311 and baffles 312 equipped on the two mounting brackets 441 can smoothly enter the slide groove 12 under the action of their own structural characteristics, thereby avoiding interference and influence on the processing during subsequent processing of the skin.

[0068] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An aircraft skin processing apparatus, comprising a support table, characterized in that, Two clamping mechanisms for positioning the skin are slidably installed on both sides of the support platform, and a drive mechanism for moving the clamping mechanisms is provided on the inner top wall of the support platform. The clamping mechanism includes a clamping assembly threadedly connected to the drive mechanism and a rotating assembly rotatably connected to the clamping assembly; the clamping assembly includes a slide plate slidably connected to the support platform, a baffle rotatably connected to the slide plate, a stop block vertically and elastically slidably connected to the top of the slide plate, a clamping member slidably connected to the stop block, and a telescopic rod installed on the clamping member. A torsion spring is provided between the slide plate and the baffle, and a connecting post is provided on the telescopic rod slidably connected to the rotating assembly. The rotating assembly includes a rotating rod rotatably connected in the slide plate and a spiral groove formed on the rotating rod. A connecting column is slidably connected in the spiral groove. When the rotating rod rotates, the spiral groove drives the clamping member to move closer to the baffle through the connecting column to clamp the skin. The drive mechanism drives the clamped skin to move towards the support platform through the slide plate to position the skin. The drive mechanism includes a motor, a jacking assembly, two adjusting assemblies, and two sliding rods. The motor is mounted on the inner top wall of the support platform. The jacking assembly is located on the output shaft of the motor. The two adjusting assemblies abut against both sides of the jacking assembly and are elastically connected to both sides of the inner wall of the support platform. The two sliding rods are mounted on the inner wall of the support platform and are slidably connected to the two adjusting assemblies. The jacking assembly includes a turntable and two protrusions. The turntable is mounted on the output shaft of the motor, and the two protrusions are mounted on the outer side of the turntable. The two protrusions can push the two adjustment components to move respectively. The adjustment assembly includes a mounting bracket, a spring, and a double-acting screw. The mounting bracket is slidably connected to the slide rod, the spring is installed between the mounting bracket and the inner wall of the support platform, and the double-acting screw is rotatably connected inside the mounting bracket. Two clamping mechanisms located on one side of the support platform are threadedly connected to the two ends of the double-acting screw. The clamping mechanism also includes a fixed frame and a threaded block. The fixed frame is mounted on the top of the slide plate and is slidably connected to the adjustment assembly. The threaded block is mounted on the fixed frame and is threadedly connected to the bidirectional lead screw.

2. The aircraft skin processing apparatus according to claim 1, characterized in that, The top edge of the slide plate has a groove for accommodating a stop block and a clamping component. An elastic sheet is installed at the bottom of the stop block, and the bottom of the elastic sheet is installed in the groove of the slide plate.

3. The aircraft skin processing apparatus according to claim 2, characterized in that, The stop block has an arc-shaped surface on the side facing the support platform, and the support platform has grooves on both sides to accommodate the sliding plate.

4. The aircraft skin processing apparatus according to claim 3, characterized in that, The baffle is inclined, and the clamping member has an inclined surface on the side facing the baffle, and the inclined surface on the clamping member is adapted to the baffle.

5. The aircraft skin processing apparatus according to claim 1, characterized in that, One end of the rotating rod passes through the slide plate and extends to the outside of the slide plate. A gear is installed at the end of the rotating rod that passes through the slide plate. One side of the gear is meshed with an adjustment mechanism installed on the inner bottom wall of the support platform.

6. The aircraft skin processing apparatus according to claim 5, characterized in that, The adjustment mechanism includes a cylinder, a mounting plate, two guide rails (first type), two guide rails (second type), and four racks. The fixed end of the cylinder is mounted on the inner bottom wall of the support platform. The mounting plate is mounted on the movable end of the cylinder. The two guide rails (first type) are respectively mounted on both sides of the mounting plate. The two guide rails (second type) are slidably connected to the two guide rails (first type). Every two racks are slidably connected to one guide rail (second type). The gear on each clamping mechanism meshes with each rack.

Images