A fuselage skin drilling device

Abstract

The present invention provides a fuselage skin drilling device, which relates to a skin drilling process, comprising: a base plate; two support rods, both rotating around a rotation axis, the support rods having an adjustable and equal spacing with the rotation axis, and both supporting rods rotating around their own central axes; two pressure rods, the pressure rods being spaced apart from the support rods and having an adjustable spacing, the pressure rods rotating around the central axes of the support rods respectively, the pressure rods moving and rotating with the support rods, and both rotating around their own central axes; two limit plates, both arranged between the support rods, the limit plates moving and rotating with the support rods, and both moving along the length direction of the base plate; a drilling machine moving along the length direction of the base plate; a drilling die moving along the height direction of the base plate, arranged between the base plate and the drilling machine, and moving along the length direction of the base plate. The present invention can improve drilling efficiency and drilling positioning accuracy, avoid skin deformation during drilling, and is applicable to fuselage skins of various curvatures, thereby having strong practicality.

Description

Technical Field

[0001] The present application relates to the field of skin processing, in particular to a skin drilling process, and specifically to a fuselage skin drilling device. Background Art

[0002] The skin of an aircraft is a thin shell covering the surface of the aircraft structure, usually made of metal or composite materials. Its main functions include protecting the internal structure of the aircraft, reducing air resistance, improving flight efficiency, and providing structural support. The shape of the skin is generally divided into single-curvature skin, double-curvature skin, complex-shaped skin, etc., and the fuselage of the aircraft generally uses single-curvature skin, that is, it has curvature in only one direction, and can usually be formed by pressing and rolling. The formed fuselage skin is generally riveted when connected to each other and to the frame, and before riveting, rivet holes need to be drilled at designated positions on the fuselage skin.

[0003] Currently, the method for drilling holes in fuselage skin is generally to place the skin on a customized fixing frame, and then manually operate a drilling machine to drill holes. However, manual drilling is inefficient and difficult to accurately position. It is easy to cause deformation of the skin during drilling. At the same time, different fixing frames need to be customized when drilling holes in fuselage skin with different curvatures, which is relatively troublesome. The existing technology also shows some mechanical devices for drilling holes in fuselage skin. By driving and rotating the drilling machine, drilling holes in different positions of the fuselage skin can be achieved. However, these mechanical devices generally need to drive the drilling machine to move in multiple directions and rotate around multiple directions in space, requiring a large and complex mechanical structure to drive the drilling machine. In addition, the drilling machine is heavy, and long-term operation can easily affect the accuracy of drilling positioning. Summary of the Invention

[0004] In order to solve the above-mentioned related technical defects, the present application provides a fuselage skin drilling equipment, which can improve the drilling efficiency and drilling positioning accuracy, avoid skin deformation during drilling, and can be applied to fuselage skins with various curvatures, and has strong practicality.

[0005] In order to achieve the above object, the present invention adopts the following technologies:

[0006] A fuselage skin drilling device, comprising:

[0007] The bottom plate is in the shape of a rectangular plate;

[0008] The support rods are provided with two support rods arranged parallel to the length direction of the base plate, the support rods are arranged at intervals and the spacing is a predetermined value, the support rods are all rotatably arranged around the same rotation axis parallel to the length direction of the base plate, the spacing between the support rods and the rotation axis is adjustable and equal, and the support rods are all rotatably arranged around their own central axes;

[0009] The lower pressure rods have two parts parallel to the length direction of the bottom plate. The lower pressure rods are matched with different support rods respectively. The lower pressure rods and the support rods they match are spaced apart and the spacing is adjustable. The lower pressure rods are respectively rotated around the central axis of the support rods they match. The lower pressure rods move with the support rods they match and rotate around the rotation axis with the support rods they match. The lower pressure rods are all rotated around their own central axes.

[0010] There are two limit plates, both of which are arranged between the support rods. The limit plates move with the support rods and rotate around the rotation axis with the support rods. The limit plates are both arranged to move along the length direction of the bottom plate;

[0011] A drilling machine is arranged above the bottom plate and moves along the length direction of the bottom plate, wherein the working axis of the drilling machine faces the bottom plate and is arranged perpendicular to the upper surface of the bottom plate, and the central axis of the working axis intersects with the rotation axis;

[0012] The drilling die is moved along the height direction of the base plate and is arranged between the base plate and the drilling machine, and is also moved along the length direction of the base plate. The drilling die is provided with a die hole along the height direction of the base plate. The die hole is coaxial with the working axis and has matching size.

[0013] Furthermore, a rotating rod is provided above the base plate along its own length direction, and the rotating rod is rotatably arranged around its own central axis. One end of the rotating rod is connected to a mounting plate, and a first linear cylinder is provided on the mounting plate. The central axis of the first linear cylinder is perpendicularly intersected with the central axis of the rotating rod, and the driving shaft of the first linear cylinder is connected to the first driving plate. Two first working rods are rotatably connected on the same side of the first driving plate, and the first working rods are all parallel to the rotating rod. The plane in which the first working rods are located is perpendicular to the central axis of the first linear cylinder. The vertical distance between the first working rod and the first linear cylinder is equal, and the first working rod is coaxially connected to one end of the support rod respectively. Two first rotating cylinders are provided on the first driving plate, and the driving shafts of the first rotating cylinders are coaxially connected to the first working rod respectively.

[0014] Furthermore, a rotating cylinder is coaxially sleeved on the circumference of the first working rod, bearings are installed between the inner wall of the rotating cylinder and the first working rod, one end of the rotating cylinder is coaxially connected to a driven gear, and the driven gears are respectively sleeved on the circumference of the first working rod, two second rotating cylinders are provided on the first driving plate, the driving shafts of the second rotating cylinders are coaxially connected to the active gears, the active gears are respectively meshed with the driven gears, the rotating cylinders are connected to the first driving frame, and the first driving frame is provided with a second linear cylinder, the central axes of the second linear cylinders are respectively perpendicular to the central axes of the corresponding first working rods, the driving shafts of the second linear cylinders are respectively arranged toward the corresponding first working rods and are respectively connected to a rotating seat, one end of the lower pressure rod is rotatably connected to the rotating seat, and the central axis of the lower pressure rod is perpendicular to the central axis of the second linear cylinder.

[0015] Furthermore, a third linear cylinder is provided along the axial direction of the other end of the rotating rod, and a driving shaft of the third linear cylinder is arranged toward the outside of the other end of the rotating rod and is connected to a driving block, and a fourth linear cylinder is provided on the driving block, and the fourth linear cylinder is parallel to the first linear cylinder, and the center axis of the fourth linear cylinder is perpendicular to the center axis of the rotating rod. The driving shaft of the fourth linear cylinder is connected to a second driving plate, and the second driving plate is connected to two second working rods that are rotated toward one side of the support rod. The second working rods are parallel to the rotating rod, and the plane where the second working rods are located is perpendicular to the center axis of the fourth linear cylinder. The vertical distance between the center axis of the second working rod and the fourth linear cylinder is equal to the vertical distance between the center axis of the first working rod and the first linear cylinder. The other end of the support rod is coaxially opened with a first matching opening, and the size of the first matching opening matches the size of the second working rod.

[0016] Furthermore, two third rotating cylinders are provided on the second driving plate, and the driving shafts of the third rotating cylinders are coaxially connected to the second working rods. The second working rods are coaxially installed with fixed cylinders, and the fixed cylinders are connected to the second driving frame. The second driving frame is provided with a fifth linear cylinder, and the central axes of the fifth linear cylinders are perpendicularly intersected with the central axes of the corresponding second working rods. The driving shafts of the fifth linear cylinders are respectively arranged toward the corresponding second working rods and are connected to fixed seats. The sides of the fixed seats facing the lower pressure rod are parallel to the second working rod and are axially connected to the third working rod. The central axes of the third working rods are perpendicularly intersected with the central axes of the corresponding fifth linear cylinders. The other end of the lower pressure rod is coaxially opened with a second matching opening, and the size of the second matching opening matches the size of the third working rod.

[0017] Furthermore, a sixth linear cylinder is provided on each of the first driving plate and the second driving plate along the length direction of the bottom plate, and the driving shafts of the sixth linear cylinder are arranged opposite to each other and are respectively connected to the limiting plates.

[0018] Furthermore, a support column is provided on the base plate, the upper end of the support column is connected to a support frame, a triangular block is provided on the support frame, the triangular block is connected to a first suspension rod, the first suspension rod is connected to a mounting frame, a fourth rotating cylinder is provided on the mounting frame, and the drive shaft of the fourth rotating cylinder is coaxially connected to the rotating rod.

[0019] Furthermore, the triangular block is connected to a second hanging rod, the second hanging rod is connected to a hanging plate, a first electric screw is provided on the hanging plate along the length direction of the base plate, a first matching block is threadedly engaged with the first electric screw, the first matching block is connected to a first moving block, a moving opening is passed through the hanging plate, and the first moving block is connected to the drilling machine through the moving opening.

[0020] Furthermore, a loading plate is provided on the base plate, and a second electric screw is provided on the loading plate along the length direction of the base plate. The second electric screw is threaded with a second mating block, and the second mating block is connected to a second moving block. A seventh linear cylinder is provided on the second moving block along the height direction of the base plate, and the driving shaft of the seventh linear cylinder is connected to the drilling mold.

[0021] Furthermore, the second matching block is also connected to a vertical rod, and the vertical rod is connected to a receiving tray, and the receiving tray is located directly below the drilling mold.

[0022] The beneficial effects of the present invention are:

[0023] 1. Use the bottom plate support rod and the lower pressure rod to fix the skin, and use the drilling machine and drilling mold to drill holes in the fuselage skin. There is no need to manually operate the drilling machine to drill holes, which improves the drilling efficiency and drilling accuracy.

[0024] 2. Use a drilling mold and a drilling machine to drill holes to avoid deformation of the skin during drilling.

[0025] 3. The support rod is movable, and the down-pressing rod can rotate around the support rod, which can fix fuselage skins with various curvatures and drill holes in fuselage skins with various curvatures.

[0026] 4. By moving the drilling machine and the drilling mold in one direction, drilling can be performed at different positions of the fuselage skin with different curvatures, which simplifies the driving structure of the drilling machine and further improves the accuracy of drilling positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional schematic diagram of the fuselage skin drilling equipment of an embodiment of the present application.

[0028] Figure 2 It is a plan view schematic diagram of the fuselage skin drilling equipment in an embodiment of the present application in a working state.

[0029] Figure 3 It is a plan schematic diagram of the fuselage skin drilling equipment of an embodiment of the present application in another working state.

[0030] Figure 4 It is a three-dimensional schematic diagram of the support rod and its driving structure in an embodiment of the present application.

[0031] Figure 5 It is a partial three-dimensional schematic diagram of the down-pressing rod and its driving structure in an embodiment of the present application.

[0032] Figure 6 This application Figure 5 A local enlarged schematic diagram of point A in the middle.

[0033] Figure 7It is a three-dimensional schematic diagram of the second working rod and its driving structure, the limiting plate and its driving structure in an embodiment of the present application.

[0034] Figure 8 It is a partial three-dimensional schematic diagram of the third working rod and its driving structure in an embodiment of the present application.

[0035] Figure 9 It is a three-dimensional schematic diagram of the rotating rod and its driving structure in an embodiment of the present application.

[0036] Figure 10 It is a three-dimensional schematic diagram of a drilling machine and its driving mechanism, a drilling mold and its driving mechanism according to an embodiment of the present application.

[0037] Markings in the figure: 1-base plate, 11-support column, 12-support frame, 13-triangle block, 14-first suspension rod, 15-mounting frame, 16-fourth rotating cylinder, 17-second suspension rod, 2-support rod, 21-rotating rod, 22-mounting plate, 23-first linear cylinder, 24-first driving plate, 25-first working rod, 26-first rotating cylinder, 27-third linear cylinder, 28-driving block, 29-fourth linear cylinder, 210-second driving plate, 211-second working rod, 212-first matching port, 213-third rotating cylinder, 3-down pressure rod, 31-rotating cylinder, 32-bearing, 33-driven gear, 34-second rotating cylinder, 35-active Gear, 36-first drive frame, 37-second linear cylinder, 38-rotating seat, 39-fixed cylinder, 310-second drive frame, 311-fifth linear cylinder, 312-fixed seat, 313-third working rod, 314-second matching port, 4-limiting plate, 41-sixth linear cylinder, 5-drilling machine, 51-hanging plate, 52-first electric screw, 53-first matching block, 54-first moving block, 55-moving port, 6-drilling mold, 61-mold hole, 62-loading plate, 63-second electric screw, 64-second matching block, 65-second moving block, 66-seventh linear cylinder, 67-vertical rod, 68-receiving tray, 7-camera, 8-fuselage skin. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] like Figure 1 As shown, this embodiment provides a fuselage skin drilling device, including a base plate 1, a support rod 2, a lower pressure rod 3, a limit plate 4, a drilling machine 5, and a drilling mold 6.

[0040] Specifically, such as Figure 1As shown, the base plate 1 is in the shape of a rectangular plate and is used to support the device.

[0041] Specifically, such as Figure 1 As shown, there are two support rods 2 arranged parallel to the length direction of the base plate 1. The support rods 2 are arranged at intervals and the spacing is a predetermined value. The support rods 2 are all rotated around the same rotation axis parallel to the length direction of the base plate 1. The spacing between the support rods 2 and the rotation axis is adjustable and the spacing is equal. The support rods 2 are all rotated around their own central axes.

[0042] Specifically, such as Figure 1 As shown, there are two lower pressure rods 3 arranged parallel to the length direction of the base plate 1, and the lower pressure rods 3 are matched with different support rods 2 respectively. The lower pressure rods 3 and the support rods 2 they match are spaced apart and the spacing is adjustable. The lower pressure rods 3 are rotated around the central axis of the support rods 2 they match, and the lower pressure rods 3 move following the support rods 2 they match, that is, when the support rods 2 and the rotating axis change and move, the lower pressure rods 3 can move synchronously with the support rods 2 they match; the lower pressure rods 3 rotate around the rotating axis following the support rods 2 they match, and the lower pressure rods 3 are all rotated around their own central axes.

[0043] Specifically, such as Figure 1 As shown, there are two limit plates 4, both of which are arranged between the support rods 2. The limit plates 4 move with the support rods 2, that is, when the distance between the support rods 2 and the rotating axis changes and moves, the limit plates 4 can move synchronously with the support rods 2 they match; the limit plates 4 rotate around the rotating axis following the support rods 2, and the limit plates 4 are moved along the length direction of the base plate 1. More specifically, in this example, the plate surface of the limit plates 4 is parallel to the two end surfaces of the base plate 1.

[0044] Specifically, such as Figure 1 As shown, the drilling machine 5 is moved along the length direction of the base plate 1 and is arranged above the base plate 1. The working axis of the drilling machine 5 is toward the base plate 1 and is arranged perpendicular to the upper surface of the base plate 1. The central axis of the working axis intersects with the rotating axis. The working principle of the drilling machine 5 and its working axis belongs to the existing technology and will not be elaborated here.

[0045] Specifically, such as Figure 1 and Figure 2 As shown, the drilling mold 6 moves along the height direction of the base plate 1 and is arranged between the base plate 1 and the drilling machine 5, and is moved along the length direction of the base plate 1. The drilling mold 6 has a mold hole 61 passing through it along the height direction of the base plate 1. The mold hole 61 is coaxial with the working axis and the size matches. The mold hole 61 is coaxial with the working axis here means that the mold hole 61 is always coaxial with the working axis during the movement of the drilling machine 5 and the drilling mold 6, and the working axis is used to cooperate with the mold hole 61 to drill.

[0046] When working, combine Figure 1 and Figure 2 As shown, the fuselage skin 8 processed by the present device is a single-curvature arc plate. The fuselage skin 8 to be processed is placed on the support rod 2 and located between the limit plates 4, so that the central axis of the fuselage skin 8 is parallel to the support rod 2, and the outer arc surface of the fuselage skin 8 is in contact with the support rod 2; the distance between the support rod 2 and the rotating shaft is adjusted. Since the distance between the support rod 2 is a predetermined value and the distance between the support rod 2 and the rotating shaft is equal, the distance between the support rod 2 and the rotating shaft is adjusted to Figure 2 The performance in the figure is to move up and down, at this time the support rod 2 drives the fuselage skin 8 to move up and down together, and stops moving when the central axis of the fuselage skin 8 coincides with the rotation axis. Such a design can make the central axis of the fuselage skin 8 of different curvatures coincide with the rotation axis; the lower pressure rod 3 is rotated around the central axis of the support rod 2 it matches, so that the central axis of the lower pressure rod 3, the central axis of the support rod 2 it matches and the rotation axis are coplanar, and the distance between the lower pressure rod 3 and the support rod 2 it matches is adjusted so that the lower pressure rod 3 contacts the inner arc surface of the fuselage skin 8. At this time, the lower pressure rod 3 and the support rod 2 will clamp and fix the fuselage skin 8, and the lower pressure rod 3 and the support rod 2 it matches are on the fuselage. The contact points on the skin 8 are parallel to the cross-section, and the fuselage skin 8 will not be deformed when clamped; the limit plate 4 is moved to make it contact with both ends of the fuselage skin 8, and the drilling machine 5 and the drilling mold 6 are moved synchronously. The support rod 2 and the down-press rod 3 are rotated around their own central axes to drive the fuselage skin 8 to rotate around its own central axis, so that drilling positioning can be achieved at any position in the middle of the fuselage skin 8. The limit plate 4 is used to prevent axial displacement when the support rod 2 and the down-press rod 3 drive the fuselage skin 8 to rotate around its own central axis; the drilling machine 5 is operated so that its working axis extends downward into the mold hole 61 of the drilling mold 6 to complete the drilling; preferably, the surface material of the support rod 2 and the down-press rod 3 is a non-slip material.

[0047] Combine Figure 1 and Figure 3 As shown, when it is necessary to drill a hole at the edge of the fuselage skin 8, the support rod 2 is rotated around the rotation axis so that the support rod 2 is located on the same side of the drilling point. At this time, the support rod 2 and the down-pressing rod 3 are rotated around their own center axes to achieve drilling at the edge of the fuselage skin 8; since the center axis of the fuselage skin 8 coincides with the rotation axis, the fuselage skin 8 also rotates around the rotation axis when following the rotation of the support rod 2. Such a design can ensure that the working axis of the drilling machine 5 is always perpendicular to the cross-section of the drilling point, thereby avoiding deformation of the fuselage skin 8 during drilling; preferably, the upper surface of the drilling mold 6 can be customized to an arc surface of different curvatures according to the curvature of the fuselage skin 8, and the corresponding drilling mold 6 is replaced when drilling different fuselage skins 8. Such a design can ensure that the upper surface of the drilling mold 6 is tightly fitted with the outer arc surface of the fuselage skin 8 during drilling, thereby further avoiding deformation of the fuselage skin 8 during drilling.

[0048] Such a design can realize drilling at any position on the fuselage skin 8; when drilling the fuselage skin 8 with different curvatures, by adjusting the distance between the support rod 2 and the said rotating axis, the central axis of the fuselage skin 8 can always be made to coincide with the said rotating axis, thereby achieving the clamping and fixation of the fuselage skin with different curvatures, and can also ensure that the working axis of the drilling machine 5 is always perpendicular to the cross-section of the drilling point, avoiding deformation of the fuselage skin 8 during drilling; at the same time, the drilling machine 5 and the drilling mold 6 only move in one direction for drilling positioning, which simplifies the driving structure of the drilling machine 5 and the drilling mold 6 and further improves the drilling positioning accuracy.

[0049] Preferably, Figure 1 and Figure 4 As shown, a rotating rod 21 is provided above the base plate 1 along its own length direction, and the rotating rod 21 is rotatably arranged around its own central axis. One end of the rotating rod 21 is connected to a mounting plate 22, and a first linear cylinder 23 is provided on the mounting plate 22. The central axis of the first linear cylinder 23 is perpendicular to the central axis of the rotating rod 21, and the driving shaft of the first linear cylinder 23 is connected to a first driving plate 24. Two first working rods 25 are rotatably connected to the same side of the first driving plate 24. The first working rods 25 are all parallel to the rotating rod 21, and the plane where the first working rods 25 are located is perpendicular to the central axis of the first linear cylinder 23. The vertical distance between the first working rod 25 and the first linear cylinder 23 is equal, and the first working rods 25 are respectively One end of the support rod 2 is coaxially connected, and two first rotating cylinders 26 are provided on the first driving plate 24. The driving shafts of the first rotating cylinders 26 are coaxially connected to the first working rod 25 respectively. The first rotating cylinders 26 are used to drive the support rod 2 to rotate through the first working rod 25; with this design, the rotating rod 21 is used to drive the support rod 2 to rotate around the central axis of the rotating rod 21 by rotating around its own central axis. The central axis of the rotating rod 21 is regarded as the rotating axis, so that the support rod 2 can be rotated around the rotating axis; the first linear cylinder 23 is used to drive the support rod 2 to move, thereby adjusting the distance between the support rod 2 and the rotating axis; the first rotating cylinder 26 is used to drive the support rod 2 to rotate around its own central axis.

[0050] Preferably, Figures 4 to 6As shown, a rotating cylinder 31 is coaxially sleeved on the circumference of the first working rod 25, and a bearing 32 is installed between the inner wall of the rotating cylinder 31 and the first working rod 25. The bearing 32 is used to enable the rotating cylinder 31 and the first working rod 25 to rotate separately; one end of the rotating cylinder 31 is coaxially connected to a driven gear 33, and the driven gears 33 are respectively sleeved on the circumference of the first working rod 25. Two second rotating cylinders 34 are provided on the first driving plate 24, and the driving shafts of the second rotating cylinders 34 are coaxially connected to the driving gears 35. The driving gears 35 are respectively engaged with the driven gears 33. The rotating cylinders 31 are connected to the first driving frame 36. Each of them is provided with a second linear cylinder 37, the central axis of the second linear cylinder 37 is respectively perpendicularly intersected with the central axis of the corresponding first working rod 25, the driving shaft of the second linear cylinder 37 is respectively arranged toward the corresponding first working rod 25 and is respectively connected to a rotating seat 38, one end of the lower pressure rod 3 is respectively rotatably connected to the rotating seat 38, and the central axis of the lower pressure rod 3 is perpendicularly intersected with the central axis of the second linear cylinder 37; with such a design, the second rotating cylinder 34 is used to drive the lower pressure rod 3 to rotate around the supporting rod 2 it matches through the engagement of the driving gear 35 and the driven gear 33, and the second linear cylinder 37 is used to adjust the distance between the lower pressure rod 3 and the supporting rod 2 it matches.

[0051] Preferably, Figure 7 As shown, the other end of the rotating rod 21 is provided with a third linear cylinder 27 along its own axial direction, and the driving shaft of the third linear cylinder 27 is arranged toward the other end of the rotating rod 21 and is connected to a driving block 28, and a fourth linear cylinder 29 is provided on the driving block 28. The fourth linear cylinder 29 is parallel to the first linear cylinder 23, and the center axis of the fourth linear cylinder 29 is perpendicular to the center axis of the rotating rod 21. The driving shaft of the fourth linear cylinder 29 is connected to a second driving plate 210, and the second driving plate 210 is rotated toward one side of the support rod 2 and is connected to two second working rods 211. The second working rods 211 are all parallel to the rotating rod 21, and the plane where the second working rods 211 are located is perpendicular to the center axis of the fourth linear cylinder 29. The vertical distance between the center axes of the linear cylinder 29 is equal to the vertical distance between the center axes of the first working rod 25 and the first linear cylinder 23. A first matching opening 212 is coaxially opened at the other end of the support rod 2. The size of the first matching opening 212 matches the size of the second working rod 211. The matching here means that when the second working rod 211 extends into the first matching opening 212, the second working rod 211 rotates and contacts with the inner wall surface of the first matching opening 212; such a design can support both ends of the support rod 2, avoiding displacement or bending of the support rod 2 caused by supporting the support rod 2 from one end; and the third linear cylinder 27 and the fourth linear cylinder 29 can drive the second working rod 211 to leave the other end of the support rod 2, thereby facilitating loading and unloading.

[0052] Preferably, Figure 8As shown, two third rotating cylinders 213 are provided on the second driving plate 210, and the driving shafts of the third rotating cylinders 213 are coaxially connected to the second working rod 211 respectively. The second working rod 211 is coaxially installed with a fixing cylinder 39, and the fixing cylinder 39 is connected to the second driving frame 310. The second driving frame 310 is provided with a fifth linear cylinder 311, and the central axis of the fifth linear cylinder 311 is perpendicularly intersected with the central axis of the corresponding second working rod 211. The driving shafts of the fifth linear cylinder 311 are respectively arranged toward the corresponding second working rod 211 and are connected to a fixing seat 312. The side of the fixing seat 312 facing the lower pressure rod 3 is parallel to the second working rod 211 and is axially connected to the third working rod 313. The third working rod 3 The central axes of 13 intersect perpendicularly with the central axes of the corresponding fifth linear cylinders 311, and a second matching opening 314 is coaxially opened at the other end of the lower pressure rod 3. The size of the second matching opening 314 matches the size of the third working rod 313. The matching here means that when the third working rod 313 extends into the second matching opening 314, the third working rod 313 rotates and contacts with the inner wall surface of the second matching opening 314; such a design can support both ends of the lower pressure rod 3, avoiding displacement or bending of the support rod 2 caused by supporting the lower pressure rod 3 from one end; and when the second working rod 211 leaves the other end of the support rod 2, the third working rod 313 can follow the second working rod 211 to leave the other end of the lower pressure rod 3, thereby facilitating loading and unloading.

[0053] Preferably, Figure 7 As shown, a sixth linear cylinder 41 is provided on both the first driving plate 24 and the second driving plate 210 along the length direction of the base plate 1. The driving shafts of the sixth linear cylinder 41 are relatively arranged and respectively connected to the limit plates 4. The sixth linear cylinder 41 is used to drive the limit plates 4 to move.

[0054] Preferably, Figure 9 As shown, four support columns 11 are provided on the base plate 1, and the upper ends of the support columns 11 are connected to the support frame 12. Two triangular blocks 13 are provided on the support frame 12. The triangular blocks 13 are all connected to the first suspension rods 14. The first suspension rods 14 are all connected to the same mounting frame 15. Two fourth rotating cylinders 16 are provided on the mounting frame 15. The driving shafts of the fourth rotating cylinders 16 are all coaxially connected to the rotating rod 21. The fourth rotating cylinder 16 is used to drive the rotating rod 21 to rotate around its own central axis.

[0055] Preferably, Figure 10As shown, the triangular blocks 13 are connected to two second suspension rods 17, and the second suspension rods 17 are connected to the same suspension plate 51. Two first electric screws 52 are provided on the suspension plate 51 along the length direction of the base plate 1. The first electric screws 52 are threaded with first matching blocks 53, and the first matching blocks 53 are connected to the same first moving block 54. A moving opening 55 is passed through the suspension plate 51, and the first moving block 54 is connected to the drilling machine 5 through the moving opening 55; the first electric screw 52 is used to drive the drilling machine 5 to move through the first matching block 53 and the first moving block 54.

[0056] Preferably, Figure 10 As shown, a loading plate 62 is provided on the base plate 1, and two second electric screws 63 are provided on the loading plate 62 along the length direction of the base plate 1, and the second electric screws 63 are threadedly fitted with second matching blocks 64, and the second matching blocks 64 are connected to the same second moving block 65, and two seventh linear cylinders 66 are provided on the second moving block 65 along the height direction of the base plate 1, and the driving shafts of the seventh linear cylinders 66 are all connected to the drilling mold 6, and the second electric screw 63 is used to drive the drilling mold 6 to move along the length direction of the base plate 1 through the second matching blocks 64 and the second moving block 65, and the seventh linear cylinder 66 is used to drive the drilling mold 6 to move along the height direction of the base plate 1.

[0057] Preferably, Figure 10 As shown, the second matching blocks 64 are all connected to vertical rods 67 , and the vertical rods 67 are all connected to the same receiving tray 68 . The receiving tray 68 is located directly below the drilling mold 6 and is used to receive drilling waste falling from the drilling mold 6 .

[0058] More preferably, Figure 1 and Figure 2 As shown, a camera 7 can be set outside the side and end of the device. The camera 7 is used to capture the real-time position of the fuselage skin 8, thereby more accurately positioning the drilling position.

[0059] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application.

Claims

1. A fuselage skin drilling device, characterized in that: include: A bottom plate (1) in the shape of a rectangular plate; The support rods (2) are provided with two rods parallel to the length direction of the base plate (1). The two support rods (2) are spaced apart and the spacing is a predetermined value. The two support rods (2) are both rotatably provided around the same rotation axis parallel to the length direction of the base plate (1). The spacing between the two support rods (2) and the rotation axis is adjustable and the spacing is equal. The two support rods (2) are both rotatably provided around their own central axes. A rotation rod (21) is provided above the base plate (1) along its own length direction. The rotation rod (21) is rotatably provided around its own central axis. One end of the rotation rod (21) is connected to a mounting plate (22). A first linear cylinder (23) is provided on the mounting plate (22). The central axis of the first linear cylinder (23) is perpendicular to the central axis of the rotation rod (21). The first linear cylinder (23) and the first driving plate (24) are connected to each other in a right direction. The driving shaft of the first linear cylinder (23) is connected to the first driving plate (24). Two first working rods (25) are rotatably connected to the same side of the first driving plate (24). The two first working rods (25) are parallel to the rotating rod (21). The plane where the two first working rods (25) are located is perpendicular to the central axis of the first linear cylinder (23). The vertical distances between the two first working rods (25) and the first linear cylinder (23) are equal. The two first working rods (25) are coaxially connected to one end of the two support rods (2). Two first rotating cylinders (26) are provided on the first driving plate (24). The driving shafts of the two first rotating cylinders (26) are coaxially connected to the two first working rods (25). The lower pressure rod (3) has two parts arranged parallel to the length direction of the bottom plate (1), and the two lower pressure rods (3) are matched with different support rods (2). The two lower pressure rods (3) are spaced apart from the support rods (2) they match, and the spacing is adjustable. The two lower pressure rods (3) are respectively rotated around the central axis of the support rods (2) they match. The two lower pressure rods (3) move following the support rods (2) they match, and rotate around the rotation axis following the support rods (2) they match. The two lower pressure rods (3) are both rotated around their own central axis. The two first working rods (25) are both coaxially sleeved with a rotating cylinder (31). A bearing (32) is installed between the inner wall of the two rotating cylinders (31) and the corresponding first working rods (25). One end of the two rotating cylinders (31) is coaxially connected to a driven gear (33). The two driven gears (33) are respectively sleeved on the two first working rods. (25) On the peripheral side, two second rotating cylinders (34) are provided on the first driving plate (24), the driving shafts of the two second rotating cylinders (34) are coaxially connected to the driving gears (35), the two driving gears (35) are respectively engaged with the two driven gears (33), the two rotating cylinders (31) are respectively connected to the first driving frame (36), the two first driving frames (36) are respectively provided with a second linear cylinder (37), the central axes of the two second linear cylinders (37) are respectively perpendicular to the central axes of the corresponding first working rods (25), the driving shafts of the two second linear cylinders (37) are respectively arranged toward the corresponding first working rods (25) and are respectively connected to the rotating seats (38), one end of the two lower pressing rods (3) are respectively rotatably connected to the two rotating seats (38), and the central axes of the two lower pressing rods (3) are respectively perpendicular to the central axes of the corresponding second linear cylinders (37); There are two limit plates (4), both of which are arranged between the two support rods (2). The two limit plates (4) move along with the two support rods (2) and rotate around the rotation axis along with the two support rods (2). The two limit plates (4) are both arranged to move along the length direction of the bottom plate (1); A drilling machine (5) is arranged above the bottom plate (1) and moves along the length direction of the bottom plate (1). The working axis of the drilling machine (5) faces the bottom plate (1) and is arranged perpendicular to the upper surface of the bottom plate (1). The central axis of the working axis intersects with the rotation axis. The drilling die (6) is arranged between the bottom plate (1) and the drilling machine (5) and is movable along the height direction of the bottom plate (1). The drilling die (6) is provided with a die hole (61) extending along the height direction of the bottom plate (1). The die hole (61) is coaxial with the working axis and has matching dimensions.

2. The fuselage skin drilling equipment according to claim 1, characterized in that: The other end of the rotating rod (21) is provided with a third linear cylinder (27) along its own axial direction, and the driving shaft of the third linear cylinder (27) is arranged outside the other end of the rotating rod (21) and is connected to a driving block (28), and a fourth linear cylinder (29) is provided on the driving block (28), and the fourth linear cylinder (29) is parallel to the first linear cylinder (23), and the central axis of the fourth linear cylinder (29) is perpendicular to the central axis of the rotating rod (21), and the driving shaft of the fourth linear cylinder (29) is connected to a second driving plate (210), and the second driving plate (210) is connected to the side of the two support rods (2) for rotation. There are two second working rods (211), both of which are parallel to the rotating rod (21), and the plane on which the two second working rods (211) are located is perpendicular to the central axis of the fourth linear cylinder (29), and the vertical distances between the two second working rods (211) and the central axis of the fourth linear cylinder (29) are equal to the vertical distances between the first working rod (25) and the central axis of the first linear cylinder (23), and the other ends of the two support rods (2) are coaxially provided with first matching openings (212), and the size of the first matching openings (212) matches the size of the two second working rods (211).

3. The fuselage skin drilling equipment according to claim 2, characterized in that: Two third rotating cylinders (213) are provided on the second driving plate (210), and the driving shafts of the two third rotating cylinders (213) are coaxially connected to the two second working rods (211). The two second working rods (211) are coaxially mounted with a fixing cylinder (39), and the fixing cylinder (39) is connected to the second driving frame (310). The second driving frame (310) is provided with a fifth linear cylinder (311), and the central axis of the fifth linear cylinder (311) is perpendicularly intersected with the central axis of the corresponding second working rod (211). The fifth linear cylinder (311) ) are respectively arranged toward the corresponding second working rod (211) and are connected to a fixed seat (312), and one side of the two fixed seats (312) facing the corresponding down-pressing rod (3) is parallel to the second working rod (211) and is axially connected to a third working rod (313), and the central axis of the third working rod (313) is perpendicularly intersected with the central axis of the corresponding fifth linear cylinder (311), and the other ends of the two down-pressing rods (3) are coaxially provided with a second matching opening (314), and the size of the second matching opening (314) matches the size of the third working rod (313).

4. The fuselage skin drilling equipment according to claim 2, characterized in that: A sixth linear cylinder (41) is provided on each of the first drive plate (24) and the second drive plate (210) along the length direction of the base plate (1). The drive shafts of the two sixth linear cylinders (41) are arranged opposite to each other and are respectively connected to the two limit plates (4).

5. The fuselage skin drilling equipment according to claim 1, characterized in that: A support column (11) is provided on the bottom plate (1), the upper end of the support column (11) is connected to a support frame (12), a triangular block (13) is provided on the support frame (12), the triangular block (13) is connected to a first suspension rod (14), the first suspension rod (14) is connected to a mounting frame (15), a fourth rotating cylinder (16) is provided on the mounting frame (15), and a driving shaft of the fourth rotating cylinder (16) is coaxially connected to the rotating rod (21).

6. The fuselage skin drilling equipment according to claim 5, characterized in that: The triangular block (13) is connected to a second suspension rod (17), the second suspension rod (17) is connected to a suspension plate (51), a first electric screw rod (52) is provided on the suspension plate (51) along the length direction of the bottom plate (1), a first matching block (53) is threadedly matched on the first electric screw rod (52), the first matching block (53) is connected to a first moving block (54), a moving opening (55) is passed through the suspension plate (51), and the first moving block (54) passes through the moving opening (55) to connect to the drilling machine (5).

7. The fuselage skin drilling equipment according to claim 1, characterized in that: A loading plate (62) is provided on the bottom plate (1), a second electric screw (63) is provided on the loading plate (62) along the length direction of the bottom plate (1), a second matching block (64) is threadedly matched on the second electric screw (63), the second matching block (64) is connected to a second moving block (65), a seventh linear cylinder (66) is provided on the second moving block (65) along the height direction of the bottom plate (1), and a driving shaft of the seventh linear cylinder (66) is connected to the drilling mold (6).

8. The fuselage skin drilling equipment according to claim 7, characterized in that: The second matching block (64) is further connected to a vertical rod (67), and the vertical rod (67) is connected to a receiving tray (68). The receiving tray (68) is located directly below the drilling die (6).

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