Adjustable support device for large aircraft assembly jig

Abstract

This invention discloses an adjustable support device for a large aircraft assembly jig, belonging to the field of aircraft assembly technology. The adjustable support device for the large aircraft assembly jig includes two support frames, a laser level, and a crosshair target. Two tracks are fixedly installed on the top wall of each support frame, and two sets of support devices are installed on the tracks. Each set of support devices includes two independent support devices and a central lifting block. A servo motor is fixedly connected to the top wall of the working chamber. A lifting sleeve is fitted around a vertical threaded rod, with one end of the lifting sleeve passing through the top wall of the working chamber. The ends of the two lifting sleeves away from the vertical threaded rod are fixedly connected to a top plate. A horizontal pushing mechanism is installed in the working chamber. This invention, by setting multiple sets of support devices on the support frames, and using a laser level and crosshair target to indicate the height of the support devices, allows operators to lift multiple uneven parts on the aircraft to a uniform, designated height.

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft assembly, and in particular relates to an adjustable supporting device for a large aircraft assembly jig. Background Art

[0002] Large aircraft assembly jigs are one of the key equipment in the aircraft manufacturing process. They are used to support and position aircraft components to ensure that they are accurately aligned during the assembly process. Aircraft structural parts are large in size, low in rigidity, and require high manufacturing accuracy. In order to ensure product manufacturing accuracy and interchangeability and coordination, a complete set of assembly jigs are used in the aircraft manufacturing process. This jig is crucial to ensuring the structural integrity and flight safety of the aircraft. With the precise positioning of the jig and positioning parts, workers can easily and accurately install various large components on the fuselage according to the requirements of the drawings.

[0003] In order to ensure the support of the assembly jig for aircraft accessories, most assembly jigs are fixed steel frames. Although they are very stable, it is difficult to adjust the height of some positions on the assembly jig. Therefore, it is difficult to adjust aircraft parts of different sizes to the appropriate height. In addition, the lower end of the aircraft wing is usually arc-shaped, not horizontal. Therefore, if you want to raise the wings and other parts to a horizontal position, it is required that different positions of the support device be lifted to different heights, and the support devices on both sides of the aircraft must be adjusted to the same height. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide an adjustable supporting device for a large aircraft assembly jig.

[0005] The technical solution adopted to solve the above technical problems is:

[0006] An adjustable support device for a large aircraft assembly jig comprises two support frames, a laser level and a cross target, the top wall of the support frame is fixedly provided with two tracks, two groups of supporters are arranged on the tracks, and a total of four groups of supporters are arranged on the two support frames, each group of the supporters comprises two independent supports and a central lifting block, the central lifting block is arranged between the two independent supports, the two independent supports are respectively slidably connected with the two tracks, a working chamber is opened in the independent supporter, the top wall of the working chamber is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a rotating shaft, the rotating shaft is fixedly connected with a central gear at one end away from the servo motor, the bottom wall of the working chamber is also rotatably connected with two side gears, the two side gears are respectively located on both sides of the central gear and are meshed with the central gear, the top walls of the two side gears are respectively fixedly connected with vertical threaded rods, the outer shell of the vertical threaded rod is provided with a lifting sleeve, one end of the lifting sleeve passes through the top wall of the working chamber, the two lifting sleeves are commonly fixedly connected with a top plate at one end away from the vertical threaded rod, and a horizontal push mechanism is arranged in the working chamber;

[0007] The central lifting block is provided with limiting grooves at both ends facing the two independent supporters, and the independent supporter is provided with a movement groove at one end facing the central lifting block. A limiting mechanism is installed between the movement groove and the independent supporter, and a long telescopic block is arranged in the limiting groove.

[0008] Through the above technical solution, multiple groups of supports are arranged on the support frame, as well as a laser level and a cross target for indicating the height of the supports, so that the staff can lift multiple uneven parts on the aircraft to a uniform specified height.

[0009] Furthermore, a clamping rod is fixedly connected to the bottom wall of the central lifting block, and the clamping rod is in an inverted "T" shape. A moving rod is fixedly connected to the top wall of the laser level, and the moving rod is clamped on the clamping rod.

[0010] Through the above technical solution, the laser level is horizontally set at the bottom of the center lifting block, and the height of the center lifting block can be clearly projected onto the cross target set on the support frame on the other side, thereby facilitating the adjustment of the supports on both sides of the aircraft to the same height, thereby facilitating the assembly of large aircraft.

[0011] Furthermore, the limiting groove is in an inverted "T" shape, the long telescopic block is also in an inverted "T" shape, and a vertical telescopic block is fixedly connected to the top wall of one end of the long telescopic block close to the moving groove.

[0012] Through the above technical solution, the long telescopic block set in the limiting groove will be driven to move toward the middle position of the center lifting block. The gradually compressed long telescopic block will make the center lifting block easier to lift, thereby making it easier for the laser level to mark the current height of the center lifting block on the cross target on the other side.

[0013] Furthermore, two fixing blocks are fixedly connected to the side wall of one end of the central lifting block, and two fixing holes are provided on the side wall of the cross target, and the two fixing blocks are respectively inserted into the two fixing holes.

[0014] Through the above technical solution, the cross-section of the fixed block is rectangular, and the fixing hole on the fixed block is also rectangular. Therefore, when the fixed block is stuck in the fixing hole, the horizontal position will also be confirmed, so that the position of the laser level and the cross target will correspond. The cross target and the laser level will be respectively set on the support frames on both sides of the aircraft. The two are set relative to each other. In the initial position, the light spot of the laser level will face the middle position of the cross target. The staff can confirm whether the two independent supports are at the same height according to the position of the light spot on the cross target, so as to facilitate the installation of the same components on both sides of the aircraft.

[0015] Furthermore, the push mechanism includes a worm, a worm wheel, a transverse threaded rod, a transverse movement block, a vertical rod and a translation rod, the worm being arranged on a rotating shaft, the worm wheel being rotatably connected to the side wall of the working chamber, the worm wheel being meshed with the worm, the transverse threaded rod being fixedly connected to the side wall of the worm wheel, the other end of the transverse threaded rod being rotatably connected to the side wall of the working chamber, the transverse movement block being threadedly connected to the transverse threaded rod, the vertical rod being fixedly connected to the top wall of the transverse movement block, the top wall of the independent support being provided with a transverse groove, the vertical rod passing through the transverse groove, the bottom wall of the top plate being provided with a pushing groove, the pushing groove being an inverted "T" shape, the translation rod also being a "T" shape, the vertical rod being fixedly connected to the bottom wall of the translation rod at one end away from the transverse movement block, the translation rod being slidably connected to the inner wall of the pushing groove, and the end of the translation rod away from the vertical rod being fixedly connected to the end of the vertical telescopic block away from the long telescopic block.

[0016] Through the above technical scheme, when the servo motor drives the rotating shaft to rotate, the worm will also synchronously drive the worm wheel to rotate, so that the horizontal threaded rod fixed on the side wall of the worm wheel can rotate along the rotating shaft, and the vertical rod can push the translation rod to the middle position of the center lifting block along the pushing groove, so that when the top plate is lifted, the center lifting block and the laser level will also be driven to rise together through the long telescopic block.

[0017] Furthermore, the length of the top plate is greater than the length of the independent supporter, and the width of the top plate is less than the width of the independent supporter.

[0018] Through the above technical solution, the top plate will directly contact the aircraft components, so it is more convenient to lift the aircraft components by setting it longer. Since the lower part of the aircraft components is usually designed in an arc shape, setting the top plate narrower is also convenient for lifting components with different arcs.

[0019] Furthermore, two first magnetic sheets are fixedly connected to the side walls of the movement groove, and two second magnetic sheets are also fixedly connected to the side walls of the limiting groove, and the positions of the two first magnetic sheets correspond to the positions of the two second magnetic sheets respectively.

[0020] Through the above technical solution, the positions of the first magnetic sheet and the second magnetic sheet correspond to each other, which makes it convenient for the staff to determine the positions of the center lifting block and the independent support. After removing the center lifting block, it can also be accurately installed back to the initial position. The staff can feel the mutual attraction between the first magnetic sheet and the second magnetic sheet only by feel, thereby aligning the limiting groove and the moving groove, which facilitates subsequent alignment work.

[0021] Furthermore, a square rod is fixedly connected to the side wall of one end of the long telescopic block facing the moving groove, and two hook rods are fixedly connected to one end of the square rod away from the long telescopic block.

[0022] Through the above technical solution, because when the top plate is lifted, the translation rod will drive the central lifting block to move horizontally, thereby causing the central lifting block to rise, and the bendable square rod will rise with the central lifting block. At this time, the square rod will become bent, and Fig. 9 It can be seen that the square rod can also be extended and retracted, thereby facilitating the removal of the restriction of the long telescopic block, so it will not affect the retraction of the long telescopic block, and the shape of the hook rod is roughly "L" shape.

[0023] Furthermore, the limiting mechanism includes a driving rod, a rotating rod, a connecting rod, a fixed plate and two notches, the rotating rod is rotatably connected to the side wall of the moving groove, the side wall of the rotating rod is provided with an arc groove, and the side wall of the rotating rod is also provided with a through groove, the through groove is connected with the arc groove, and the through groove is connected to the outside world at one end away from the arc groove, the driving rod is fixedly connected to the bottom wall of the translation rod, the driving rod is slidably connected to the inner wall of the arc groove at one end away from the translation rod, the connecting rod is fixedly connected to the end of the rotating rod away from the moving groove, and the connecting rod is fixedly connected to the side wall of the fixed plate at one end away from the rotating rod, the two notches are respectively provided on the side wall of the fixed plate, the two notches are located on the same straight line, the widths of the two notches are respectively consistent with the widths of the two hook rods, the end of the arc groove away from the through groove is located on the same straight line as the notch, and the horizontal position of the through groove connected to the outside world is 90° to the horizontal position of the notch.

[0024] Through the above technical solution, when the translation rod is pushed horizontally, the driving rod will move along the arc groove on the side wall of the rotating rod, thereby causing the rotating rod to rotate, and the hook rod originally stuck on the fixed plate will be moved to the notch position, thereby allowing the long telescopic block to be retracted by the translation rod. At the same time, since the diameter of the connecting rod is smaller than the diameter of the fixed plate and the diameter of the rotating rod, the hook rod will not be interfered with when the hook rod and the fixed plate move relative to each other.

[0025] Furthermore, the side walls of the independent support are fixedly provided with side rods, and the side rods are slidably connected to the outside with limiting rods, and the limiting rods are "U"-shaped. The bottom walls at both ends of the limiting rods are respectively fixedly connected with plug rods, and the top wall of the track is provided with a plurality of plug holes, and the two plug rods are respectively inserted into the two plug holes.

[0026] Through the above technical solution, the independent support can slide freely on the track. In order to better adapt to the support requirements of different components and ensure the support effect, the independent support needs to be fixed on the track. Therefore, side rods, limiting rods and insertion rods are arranged on the side walls of the independent support so that the independent support can be fixed in the specified position.

[0027] Through the above technical solution, the beneficial effects of the present invention are as follows:

[0028] (1) The present invention arranges an independent supporter that can slide along a track on a support frame, so that the independent supporter can adjust its position according to the aircraft component to be supported, thereby facilitating good support of the aircraft component. In addition, a laser level and a cross target are arranged between two independent supports, so that the independent supports on both sides of the aircraft can be adjusted to the same height in advance. Then, the aircraft component can be easily assembled on the aircraft by placing it on the top plate on the top of the independent supporter.

[0029] (2) The present invention arranges a translation rod, a long telescopic block and a vertical telescopic block between the top plate and the central lifting block. Since the two top plates need to lift the components on the arc-shaped bottom surface to the same height, the two top plates may need to be at different heights. In order to ensure that the top plates on the two support frames are at the same height, it is necessary to make the laser level and the cross target rise and fall together with the top plates, so as to determine the heights of the two top plates respectively, which makes it more convenient for the components to be assembled on large aircraft.

[0030] (3) The present invention provides a socket on the track, and side rods, limiting rods and insertion rods on the side walls of the independent supporter, so that the independent supporter can slide freely on the track before supporting the component. After the component to be supported is determined, the independent supporter and the top plate can be moved to the middle position of the component, and then the insertion rod can be inserted into the socket of the track to fix the independent supporter in the current position, so that the independent supporter can stably support the component and the staff can assemble the component conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the connection structure between the support frame and the independent support device in the present invention;

[0033] Figure 3 It is a structural schematic diagram of the independent support, the laser level and the cross target in the present invention;

[0034] Figure 4 It is a schematic diagram of the structure of the side rod, the limiting rod and the inserting rod in the present invention;

[0035] Figure 5 It is a structural schematic diagram of the horizontal push mechanism in the present invention;

[0036] Figure 6 It is a structural schematic diagram of the transverse moving block and the vertical rod in the horizontal push mechanism of the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the vertical rod, the translation rod and the vertical telescopic block in the present invention;

[0038] Figure 8 is a schematic diagram of the positions of the first magnetic sheet and the second magnetic sheet in the present invention;

[0039] Fig. 9 It is a structural schematic diagram of the long telescopic block, the vertical telescopic block and the square rod in the present invention;

[0040] Fig.10 It is a structural schematic diagram of the limiting mechanism in the present invention.

[0041] Figure numerals: 1, support frame; 2, laser level; 3, cross target; 4, track; 5, independent support; 6, center lifting block; 7, servo motor; 8, rotating shaft; 9, center gear; 10, side gear; 11, vertical threaded rod; 12, lifting sleeve; 13, top plate; 14, limiting groove; 15, moving groove; 16, long telescopic block; 17, clamping rod; 18, moving rod; 19, vertical telescopic block; 20, fixing block; 21, fixing hole; 2 2. Worm; 23. Worm wheel; 24. Horizontal threaded rod; 25. Transverse block; 26. Vertical rod; 27. Translation rod; 28. Horizontal groove; 29. ​​Push groove; 30. First magnetic sheet; 31. Second magnetic sheet; 32. Square rod; 33. Hook rod; 34. Drive rod; 35. Rotating rod; 36. Connecting rod; 37. Fixed plate; 38. Notch; 39. Arc groove; 40. Through groove; 41. Side rod; 42. Limit rod; 43. Insert rod; 44. Socket. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] like Figure 1 - Fig.10As shown, this embodiment provides an adjustable support device for a large aircraft assembly jig, including two support frames 1, a laser level 2 and a cross target 3. Only one is marked in the figure, and there are actually two support frames 1 located on both sides of the aircraft, and a laser level 2 is arranged on the top of one of the support frames 1, and a cross target 3 is arranged on the top of the other support frame 1.

[0044] Reference Figure 1 , Figure 2 and Figure 3 Two tracks 4 are fixedly arranged on the top wall of the support frame 1, and two groups of supports are arranged on the tracks 4. There are four groups of supports on the two support frames 1 in total, and each group of supports includes two independent supports 5 and a center lifting block 6. The center lifting block 6 is arranged between the two independent supports 5. The bottom wall of the center lifting block 6 is fixedly connected with a clamping rod 17, and the clamping rod 17 is an inverted "T" shape. A moving rod 18 is fixedly connected to the top wall of the laser level 2, and the moving rod 18 is clamped on the clamping rod 17. The laser level 2 is horizontally arranged at the bottom of the center lifting block 6, and the height of the center lifting block 6 can be clearly projected onto the cross target 3 arranged on the support frame 1 on the other side, so as to facilitate the adjustment of the supports on both sides of the aircraft to the same height, so as to facilitate the assembly of large aircraft.

[0045] Reference Figure 1 and Figure 3 Two fixing blocks 20 are fixedly connected to the side wall of one end of the center lifting block 6, and two fixing holes 21 are opened on the side wall of the cross target 3. The two fixing blocks 20 are respectively inserted into the two fixing holes 21. The cross section of the fixing block 20 is rectangular, and the fixing hole 21 stuck on the fixing block 20 is also rectangular. The cross target 3 and the laser level 2 will be respectively set on the support frame 1 on both sides of the aircraft. The two are arranged oppositely. In the initial position, the light spot of the laser level 2 will face the middle position of the cross target 3.

[0046] Reference Figure 2 and Figure 3The two independent supports 5 are slidably connected to the two rails 4 respectively, and a slide groove consistent with the shape of the rail 4 is arranged at the bottom of the independent support 5, so that the independent support 5 can slide on the rail 4. The side wall of the independent support 5 is fixedly provided with a side rod 41, and a limiting rod 42 is slidably connected outside the side rod 41. The limiting rod 42 is "U"-shaped, and the bottom walls at both ends of the limiting rod 42 are fixedly connected with an insertion rod 43 respectively. The top wall of the rail 4 is provided with a plurality of insertion holes 44, and the two insertion rods 43 are respectively inserted into the two insertion holes 44, so that the independent support 5 can slide freely on the rail 4. In order to better meet the support requirements of different components and ensure the support effect, it is necessary to fix the position of the independent support 5 on the rail 4. Therefore, the side rods 41, the limiting rods 42 and the insertion rods 43 are arranged on the side walls of the independent support 5, so that the independent support 5 can be fixed in the specified position. It is only necessary to arrange the side rod 41 and the limiting rod 42 on one of the side walls of a group of independent supports 5, because the central lifting block 6 will connect the independent supports 5 of the same group together.

[0047] Reference Figure 4 and Figure 5 A working chamber is provided in the independent support device 5, and a servo motor 7 is fixedly connected to the top wall of the working chamber, and the output end of the servo motor 7 faces downward. A rotating shaft 8 is fixedly connected to the output end of the servo motor 7, and a central gear 9 is fixedly connected to the end of the rotating shaft 8 away from the servo motor 7. The bottom wall of the working chamber is also rotatably connected to two side gears 10, and the two side gears 10 are respectively located on both sides of the central gear 9 and are meshed with the central gear 9. The top walls of the two side gears 10 are respectively fixedly connected to vertical threaded rods 11, and a lifting sleeve 12 is provided on the outer sleeve of the vertical threaded rod 11. One end of the lifting sleeve 12 passes through the top wall of the working chamber, and the two lifting sleeves 12 are fixedly connected to a top plate 13 at one end away from the vertical threaded rod 11. The length of the top plate 13 is greater than the length of the independent support device 5, and the width of the top plate 13 is less than the width of the independent support device 5. The top plate 13 will directly contact the aircraft components, so it is more convenient to lift the aircraft components if it is set to be longer. Since the lower half of the aircraft components are usually designed in an arc shape, the top plate 13 is set to be narrower, which is also convenient for lifting components with different arcs.

[0048] Reference Figure 5 - Figure 7A horizontal push mechanism is installed in the working chamber, and the horizontal push mechanism includes a worm 22, a worm wheel 23, a horizontal threaded rod 24, a horizontal movement block 25, a vertical rod 26 and a horizontal movement rod 27. The worm 22 is arranged on the rotating shaft 8, the worm wheel 23 is rotatably connected to the side wall of the working chamber, the worm wheel 23 is meshed with the worm 22, the horizontal threaded rod 24 is fixedly connected to the side wall of the worm wheel 23, the other end of the horizontal threaded rod 24 is rotatably connected to the side wall of the working chamber, the horizontal movement block 25 is threadedly connected to the horizontal threaded rod 24, the vertical rod 26 is fixedly connected to the top wall of the horizontal movement block 25, the top wall of the independent supporter 5 is provided with a horizontal groove 28, the vertical rod 26 passes through the horizontal groove 28, and the bottom wall of the top plate 13 is provided with a push groove 29, and the push groove 29 is an inverted "T" ” shape, the translation rod 27 is also “T” shaped, the end of the vertical rod 26 away from the transverse moving block 25 is fixedly connected to the bottom wall of the translation rod 27, the translation rod 27 is slidably connected to the inner wall of the pushing groove 29, the end of the translation rod 27 away from the vertical rod 26 is fixedly connected to the end of the vertical telescopic block 19 away from the long telescopic block 16, when the servo motor 7 drives the rotating shaft 8 to rotate, the worm 22 will also synchronously drive the worm wheel 23 to rotate, so that the horizontal threaded rod 24 fixed on the side wall of the worm wheel 23 can rotate with the rotating shaft 8, and the vertical rod 26 can push the translation rod 27 to the middle position of the center lifting block 6 along the pushing groove 29, so that when the top plate 13 is lifted, the center lifting block 6 will also be driven to rise together.

[0049] Reference Figure 8 The center lifting block 6 is provided with limiting grooves 14 at both ends facing the two independent supporters 5, and the independent supporter 5 is provided with a moving groove 15 at one end facing the center lifting block 6. The side walls of the moving groove 15 are fixedly connected with two first magnetic sheets 30, and the side walls on both sides of the limiting groove 14 are also fixedly connected with two second magnetic sheets 31. The positions of the two first magnetic sheets 30 correspond to the positions of the two second magnetic sheets 31 respectively, and the positions of the first magnetic sheets 30 correspond to the positions of the second magnetic sheets 31, which is convenient for the staff to determine the positions of the center lifting block 6 and the independent supporter 5. After removing the center lifting block 6, it can also be accurately installed back to the initial position, which is convenient for subsequent alignment work.

[0050] Reference Figure 7 and Fig. 9 The side wall of the long telescopic block 16 facing the moving groove 15 is fixedly connected with a square rod 32, and the end of the square rod 32 away from the long telescopic block 16 is fixedly connected with two hook rods 33. Because when the top plate 13 is lifted, the translation rod 27 will drive the central lifting block 6 to move horizontally, thereby causing the central lifting block 6 to rise, and the bendable square rod 32 will rise with the central lifting block 6. At this time, the square rod 32 will become a bent state, and from Fig. 9 As can be seen from the figure, the square rod 32 can also be telescopic, so it will not affect the retraction of the long telescopic block 16.

[0051] Reference Figure 7 and Fig.10A limiting mechanism is arranged between the motion groove 15 and the independent support 5, and the limiting mechanism includes a driving rod 34, a rotating rod 35, a connecting rod 36, a fixing plate 37 and two notches 38. The rotating rod 35 is rotatably connected to the side wall of the motion groove 15, and an arc groove 39 is provided on the side wall of the rotating rod 35. A through groove 40 is also provided on the side wall of the rotating rod 35, and the through groove 40 is connected to the arc groove 39. The end of the through groove 40 away from the arc groove 39 is connected to the outside world. The driving rod 34 is fixedly connected to the bottom wall of the translation rod 27, and the end of the driving rod 34 away from the translation rod 27 is slidably connected to the inner wall of the arc groove 39. The connecting rod 36 is fixedly connected to the end of the rotating rod 35 away from the motion groove 15, and the end of the connecting rod 36 away from the rotating rod 35 It is fixedly connected to the side wall of the fixed plate 37, and two notches 38 are respectively opened on the side wall of the fixed plate 37. The two notches 38 are located on the same straight line. The width of the two notches 38 is consistent with the width of the two hook rods 33. The arc groove 39 is located on the same straight line with the notch 38 at one end away from the through groove 40. The horizontal position of the end of the through groove 40 connected to the outside is 90° to the horizontal position of the notch 38. When the translation rod 27 is pushed horizontally, the driving rod 34 will move along the arc groove 39 on the side wall of the rotating rod 35, thereby causing the rotating rod 35 to rotate, and the hook rod 33 originally stuck on the fixed plate 37 will be moved to the position of the notch 38, so that the long telescopic block 16 can be retracted by the translation rod 27.

[0052] Reference Figure 3 , Figure 7 and Fig. 9 A long telescopic block 16 is arranged in the limiting groove 14. The shape of the limiting groove 14 is an inverted "T" shape. The long telescopic block 16 is also an inverted "T" shape. The long telescopic block 16 is fixedly connected with a vertical telescopic block 19 on the top wall of one end of the moving groove 15. The long telescopic block 16 arranged in the limiting groove 14 will be driven to move toward the middle position of the center lifting block 6. The gradually compressed long telescopic block 16 will make it easier to lift the center lifting block 6, thereby facilitating the laser level 2 to mark the current height of the center lifting block 6 on the cross target 3 on the other side.

[0053] The working principle of this embodiment is as follows: first, the independent support 5 is slid along the track 4 to move it to the middle position of the component. During the movement, the limiting rod 42 needs to be lifted upward along the side rod 41. After the position is determined, the limiting rod 42 can be lowered, and the two insertion rods 43 at the bottom of the limiting rod 42 will be inserted into the insertion holes 44 on the track 4, thereby fixing the position of the independent support 5;

[0054] Then, the servo motor 7 is started at the same time. The operation of the servo motor 7 will cause the rotating shaft 8 to rotate. The central gear 9 at the other end of the rotating shaft 8 will drive the two side gears 10 to rotate. The vertical threaded rods 11 respectively fixed on the top walls of the side gears 10 will rotate along with the side gears 10. The lifting sleeve 12 sleeved on the vertical threaded rods 11 will push the top plate 13 upwards, thereby lifting the component.

[0055] When the shaft 8 rotates, the worm 22 on the side wall of the shaft 8 will also drive the worm wheel 23 to rotate together, and the horizontal threaded rod 24 set on the side wall of the worm wheel 23 will rotate accordingly, and the horizontal moving block 25 sleeved on the horizontal threaded rod 24 will drive the vertical rod 26 to move along the horizontal groove 28, and the translation rod 27 fixed at the other end of the vertical rod 26 will move together with the vertical rod 26, and the translation rod 27 will drive the vertical telescopic block 19 to move toward the middle position of the central lifting block 6;

[0056] The movement of the translation rod 27 will drive the driving rod 34 to move toward the middle position of the central lifting block 6. The driving rod 34 sliding in the arc groove 39 will cause the rotating rod 35 to rotate 90 degrees. The fixing plate 37 that originally clamped the hook rod 33 will rotate under the drive of the rotating rod 35 and the connecting rod 36, so that the position of the notch 38 moves to the hook rod 33, thereby releasing the restriction effect of the long telescopic block 16, and the long telescopic block 16 can move freely in the restriction groove 14.

[0057] While the top plate 13 moves upward, the center lifting block 6 is lifted upward together with the laser level 2 and the cross target 3. If one of the top plates 13 is of sufficient height, it does not need to be lifted up again. The other top plate 13 will also be driven to rise by the servo motor 7. The vertical telescopic block 19 on the top of the long telescopic block 16 corresponding to the top plate 13 that has stopped rising will be compressed due to the rise of the center lifting block 6, and the laser level 2 and the cross target 3 on the top of the two support frames 1 will rise accordingly. Therefore, the staff can align the height of the independent supports 5 on the top of the two support frames 1. After the height is aligned, the two support frames 1 can be pushed to both sides of the aircraft, and then the components on the top plate 13 can be conveniently assembled on the aircraft.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An adjustable support device for a large aircraft assembly jig, comprising two support frames (1), a laser level (2) and a cross target (3), characterized in that: Two rails (4) are fixedly arranged on the top wall of the support frame (1), and two groups of supports are arranged on the rails (4). A total of four groups of supports are arranged on the two support frames (1), and each group of supports includes two independent supports (5) and a central lifting block (6). The central lifting block (6) is arranged between the two independent supports (5). The two independent supports (5) are respectively slidably connected to the two rails (4). A working cavity is opened in the independent support (5), and a servo motor (7) is fixedly connected to the top wall of the working cavity. A rotating shaft (8) is fixedly connected to the output end of the servo motor (7). The rotating shaft (8) 8) A central gear (9) is fixedly connected to one end away from the servo motor (7), and the bottom wall of the working chamber is also rotatably connected to two side gears (10), the two side gears (10) are respectively located on both sides of the central gear (9) and are both meshed with the central gear (9), the top walls of the two side gears (10) are respectively fixedly connected to vertical threaded rods (11), the outer sleeve of the vertical threaded rod (11) is provided with a lifting sleeve (12), one end of the lifting sleeve (12) passes through the top wall of the working chamber, and the two lifting sleeves (12) are fixedly connected to a top plate (13) at one end away from the vertical threaded rod (11), and a horizontal push mechanism is installed in the working chamber; The central lifting block (6) is provided with limiting grooves (14) at both ends facing the two independent supporters (5), and the independent supporter (5) is provided with a moving groove (15) at one end facing the central lifting block (6). A limiting mechanism is arranged between the moving groove (15) and the independent supporter (5). A long telescopic block (16) is arranged in the limiting groove (14). The limiting groove (14) is in the shape of an inverted "T" shape. The long telescopic block (16) is also in the shape of an inverted "T". A vertical telescopic block (19) is fixedly connected to the top wall of one end of the long telescopic block (16) close to the moving groove (15); The horizontal push mechanism comprises a worm (22), a worm wheel (23), a transverse threaded rod (24), a transverse movement block (25), a vertical rod (26) and a translation rod (27), wherein the worm (22) is arranged on the rotating shaft (8), the worm wheel (23) is rotatably connected to the side wall of the working chamber, the worm wheel (23) is meshed with the worm (22), the transverse threaded rod (24) is fixedly connected to the side wall of the worm wheel (23), the other end of the transverse threaded rod (24) is rotatably connected to the side wall of the working chamber, the transverse movement block (25) is threadedly connected to the transverse threaded rod (24), and the vertical rod (26) is fixedly connected to the transverse movement block (27). 5) top wall, the top wall of the independent support (5) is provided with a transverse groove (28), the vertical rod (26) passes through the transverse groove (28), the bottom wall of the top plate (13) is provided with a push groove (29), the push groove (29) is in an inverted "T" shape, the translation rod (27) is also in a "T" shape, the end of the vertical rod (26) away from the transverse block (25) is fixedly connected to the bottom wall of the translation rod (27), the translation rod (27) is slidably connected to the inner wall of the push groove (29), and the end of the translation rod (27) away from the vertical rod (26) is fixedly connected to the end of the vertical telescopic block (19) away from the long telescopic block (16); The side wall of the long telescopic block (16) facing the moving groove (15) is fixedly connected to a square rod (32), and the end of the square rod (32) away from the long telescopic block (16) is fixedly connected to two hook rods (33). The limiting mechanism comprises a driving rod (34), a rotating rod (35), a connecting rod (36), a fixed plate (37) and two notches (38). The rotating rod (35) is rotatably connected to the side wall of the moving groove (15). The side wall of the rotating rod (35) is provided with an arc groove (39). The side wall of the rotating rod (35) is also provided with a through groove (40). The through groove (40) is connected to the arc groove (39). The through groove (40) is connected to the outside at one end away from the arc groove (39). The driving rod (34) is fixedly connected to the translation rod (27). ) bottom wall, one end of the driving rod (34) away from the translation rod (27) is slidably connected to the inner wall of the arc groove (39), the connecting rod (36) is fixedly connected to the end of the rotating rod (35) away from the movement groove (15), the end of the connecting rod (36) away from the rotating rod (35) is fixedly connected to the side wall of the fixed plate (37), the two notches (38) are respectively opened on the side wall of the fixed plate (37), the two notches (38) are located on the same straight line, the widths of the two notches (38) are respectively consistent with the widths of the two hook rods (33), the end of the arc groove (39) away from the through groove (40) is located on the same straight line as the notch (38), and the horizontal position of the end of the through groove (40) connected to the outside is 90 degrees to the horizontal position of the notch (38).

2. The adjustable support device for large aircraft assembly jig according to claim 1, characterized in that: The bottom wall of the central lifting block (6) is fixedly connected to a clamping rod (17), the clamping rod (17) is in an inverted "T" shape, and the top wall of the laser level (2) is fixedly connected to a moving rod (18), the moving rod (18) is clamped on the clamping rod (17).

3. The adjustable support device for large aircraft assembly jig according to claim 2, characterized in that: Two fixing blocks (20) are fixedly connected to the side wall of one end of the central lifting block (6), and two fixing holes (21) are opened on the side wall of the cross target (3), and the two fixing blocks (20) are respectively inserted into the two fixing holes (21).

4. The adjustable support device for large aircraft assembly jig according to claim 1, characterized in that: The length of the top plate (13) is greater than the length of the independent support (5), and the width of the top plate (13) is less than the width of the independent support (5).

5. The adjustable support device for large aircraft assembly jig according to claim 1, characterized in that: Two first magnetic sheets (30) are fixedly connected to the side walls of the movement slot (15), and two second magnetic sheets (31) are also fixedly connected to the side walls of both sides of the restriction slot (14), and the positions of the two first magnetic sheets (30) correspond to the positions of the two second magnetic sheets (31) respectively.

6. The adjustable support device for large aircraft assembly jig according to claim 1, characterized in that: The side wall of the independent support (5) is fixedly provided with a side rod (41), and a limiting rod (42) is slidably connected to the outside of the side rod (41), and the limiting rod (42) is "U"-shaped. The bottom walls at both ends of the limiting rod (42) are respectively fixedly connected with an insertion rod (43), and the top wall of the track (4) is provided with a plurality of insertion holes (44), and two of the insertion rods (43) are respectively inserted into two insertion holes (44).

Images