Narrow and small space component butt joint device in aircraft assembly process

Abstract

The invention provides a narrow space component butt joint device in the aircraft assembly process. The narrow space component butt joint device comprises a frame (1), wheel sets (2), supporting feet (3), a trailer connector structure (4), an electric lifting posture adjusting mechanism (6), a transportation walking structure (5), a manual adjusting mechanism (7) and an auxiliary positioning mechanism (8). The electric lifting posture adjusting mechanism (6) is adopted to achieve large-range rapid lifting of the whole frame firstly, then four servo motors drive four small-stroke lead screws on the inner side correspondingly, and rolling, pitching and lifting movement of the frame 1 is achieved through single left side / single right side / single front side / single rear side driving; according to the jacking device, the pitching, rolling and jacking functions of a product can be achieved, the stepless adjustment requirement of the butt joint device can be met, the translation requirement of the butt joint device can be met, the jacking function with the low compression amount and the large lifting stroke is achieved, and the mounting and moving requirement of the butt joint device is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of aircraft manufacturing, and particularly relates to a docking device for components in a narrow space during the aircraft assembly process. Background Art

[0002] Considering the various assembly environments and states of the docking device in the in-field and out-field, the installation height of the docking device varies greatly. In addition, the assembly path of the docking device is complex, and affected by assembly tolerances during the actual installation process, there are various possibilities for pitching and rolling in the docking adjustment of the docking device. Therefore, the adjustment function requirements for the lifting and installing vehicle of the docking device are relatively high, and the design work of the docking device installation vehicle is relatively difficult. Summary of the Invention

[0003] Aiming at the deficiencies in the docking technology of components in a narrow space during the current aircraft assembly process, the present invention proposes a docking device for components in a narrow space during the aircraft assembly process. Through the combination of various mechanisms, various postures such as pitching and rolling required for the docking adjustment of the docking device are realized.

[0004] The present invention provides a docking device for components in a narrow space during the aircraft assembly process, including: a bottom trailer structure and an upper assembly mechanism;

[0005] The bottom trailer structure includes: a frame 1, a wheel set 2, a support leg 3, and a trailer interface structure 4;

[0006] The wheel set 2, the support leg 3, and the trailer interface structure 4 are arranged around the frame 1;

[0007] The upper assembly mechanism includes: an electric lifting and posture adjustment mechanism 6, a transportation and walking structure 5, a manual adjustment mechanism 7, and an auxiliary positioning mechanism 8;

[0008] The electric lifting and posture adjustment mechanism 6 includes: a screw jack, a servo motor, a large-stroke lead screw, and a small-stroke lead screw; one screw jack, two servo motors, two large-stroke lead screws, and two small-stroke lead screws are arranged on each of two opposite sides of the frame 1. The two large-stroke lead screws on the same side share the same screw jack, and the screw jack can simultaneously drive the two sets of large-stroke lead screws connected thereto to realize the large-range and rapid lifting of the overall frame; the four servo motors respectively drive the four inner small-stroke lead screws, and through single left / single right / single front / single rear drive, the rolling, pitching, and lifting movements of the frame 1 are realized;

[0009] The top surface of the frame 1 is provided with a transportation and walking structure. The bottom of the transportation and walking structure is provided with universal balls, and the top is used for installing the components to be docked. The manual adjustment mechanism includes: a three-point handwheel lead screw assembly for driving the transportation and walking structure to translate and / or rotate on the horizontal plane;

[0010] The auxiliary positioning mechanism is arranged on the frame 1 and / or the transportation walking structure and is used for positioning the bottom trailer structure before docking.

[0011] Optionally, the first nut seat 9, the second nut seat 10, the third nut seat 11, and the fourth nut seat 12 are arranged in a counterclockwise direction around the frame 1.

[0012] Each small-stroke lead screw is arranged on a nut seat. The first nut seat 9 is a fixed support, the second nut seat 10 is a Y-direction release support, the third nut seat 11 is an X-direction release support, and the fourth nut seat 12 is an X / Y-direction full-release support.

[0013] Sliding rails are arranged in the open direction of the nut seat to enable the sliding of the small-stroke lead screw relative to the sliding rail or the sliding of the nut seat relative to the frame 1 along the sliding rail.

[0014] Four groups of servo motors are synchronously lifted in pairs to achieve the flipping function in the X / Y direction and the jacking function in the Z direction.

[0015] Optionally, the support feet 3 are connected to the screw jacks.

[0016] After the bottom trailer structure is positioned, the screw jacks control the support feet 3 to descend to fix the bottom trailer structure.

[0017] Optionally, sliding grooves are arranged on two adjacent sides of the transportation walking structure.

[0018] Two handwheel lead screw assemblies are arranged on the sliding groove in the length direction, and one handwheel lead screw assembly is arranged on the sliding groove in the width direction.

[0019] Optionally, the auxiliary positioning mechanism 8: three laser emitting devices.

[0020] Optionally, among the three laser emitting devices, the initial positioning reference of the forward outer laser emitting device is the bolt behind the outer front intersection point; the initial positioning reference of the inner laser emitting device is the top of the numerical control jack; the initial positioning reference of the rear laser emitting device is the rear crossbeam at the outer intersection point.

[0021] Optionally, two support plates are arranged on the top surface of the frame 1, and borders are arranged around the support plates.

[0022] The universal balls at the bottom of the transportation walking structure are distributed within the two support plates.

[0023] Optionally, product support columns are arranged on the top of the transportation walking structure and are used to connect the parts to be docked through pins.

[0024] The beneficial effects of this application are as follows:

[0025] By sorting out various assembly conditions such as different assembly heights and high-precision adjustments, a docking device installation vehicle dedicated to this project was designed and manufactured, which not only effectively ensured the smooth completion of the loading work of the docking device, but also provided reference for the assembly tooling in limited space in later similar situations. Brief Description of the Drawings

[0026] Figure 1 Fig. is a schematic structural diagram of the installation vehicle;

[0027] Figure 2 Fig. is a schematic diagram of the upper assembly mechanism;

[0028] Figure 3 Fig. is a schematic diagram of the electric lifting and posture adjusting mechanism;

[0029] Figure 4 Fig. is a schematic diagram of the manual adjustment mechanism and the nut seat;

[0030] Figure 5 Fig. is a schematic structural diagram of the nut seat;

[0031] Figure 6 Fig. is a schematic diagram of the auxiliary positioning mechanism;

[0032] Description of the Reference Numerals in the Drawings:

[0033] Frame 1, wheel set 2, support feet 3, trailer interface structure 4, transportation and walking mechanism 5, electric lifting and posture adjusting mechanism 6, manual adjustment mechanism 7, auxiliary positioning mechanism 8, first nut seat 9, second nut seat 10, third nut seat 11, fourth nut seat 12, handwheel screw assembly 13, slide rail 14. Detailed Embodiment

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0035] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a comprehensive understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only provided to better understand the present invention by showing examples of the present invention. The present invention is in no way limited to any specific arrangements and methods set forth below, but covers any improvements, substitutions, and modifications of structures, methods, and devices without departing from the spirit of the present invention. In the drawings and the following description, well-known structures and technologies are not shown to avoid unnecessarily obscuring the present invention.

[0036] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and should not be construed as limiting the present invention. In addition, the use of ordinal numbers (for example, "first and second", etc.) is for distinguishing objects and is not limited to this order, and should not be construed as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense, and can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other, and the various embodiments can be referred to and cited from each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0039] The present invention will be further described in detail below in combination with the embodiments and the drawings, but the embodiments of the present invention are not limited thereto.

[0040] As Figure 1-6 shown, the present invention provides a docking device for components in a narrow space during aircraft assembly, including: a bottom trailer structure and an upper assembly mechanism;

[0041] The bottom trailer structure includes: a frame 1, a wheel set 2, a support leg 3, and a trailer interface structure 4;

[0042] The wheel set 2, the support leg 3, and the trailer interface structure 4 are arranged around the frame 1;

[0043] The upper assembly mechanism includes: an electric lifting and posture adjusting mechanism 6, a transportation and walking structure 5, a manual adjusting mechanism 7, and an auxiliary positioning mechanism 8;

[0044] The electric lifting and posture adjusting mechanism 6 includes: a screw elevator, a servo motor, a large-stroke lead screw, and a small-stroke lead screw; A screw elevator, two servo motors, two large-stroke lead screws, and two small-stroke lead screws are provided on two opposite sides of the frame 1. The two large-stroke lead screws on the same side share the same screw elevator. The screw elevator can simultaneously drive the two sets of large-stroke lead screws connected to it to achieve a large-range and rapid lifting of the overall frame; The four servo motors respectively drive the four inner small-stroke lead screws, and through single left / single right / single front / single rear drive, the rolling, pitching, and lifting movements of the frame 1 are achieved;

[0045] A transportation and walking structure is provided on the top surface of the frame 1. The bottom of the transportation and walking structure is provided with universal balls, and the top is used to install the components to be docked. The manual adjusting mechanism includes: a three-point handwheel lead screw assembly, which is used to drive the transportation and walking structure to translate and / or rotate on the horizontal plane;

[0046] The auxiliary positioning mechanism is provided on the frame 1 and / or the transportation and walking structure, and is used to position the bottom trailer structure before docking.

[0047] Optionally, the first nut seat 9, the second nut seat 10, the third nut seat 11, and the fourth nut seat 12 are arranged in a counterclockwise direction around the frame 1;

[0048] Each small-stroke lead screw is arranged on a nut seat. The first nut seat 9 is a fixed support, the second nut seat 10 is a Y-direction release support, the third nut seat 11 is an X-direction release support, and the fourth nut seat 12 is an X / Y-direction full release support;

[0049] Sliding rails are provided in the open direction of the nut seat, which are used to realize the sliding of the small-stroke lead screw relative to the sliding rail or the sliding of the nut seat along the sliding rail relative to the frame 1;

[0050] The four groups of servo motors lift synchronously in pairs to achieve the X / Y-direction flipping function and the Z-direction jacking function.

[0051] Optionally, the support feet 3 are connected to the screw elevator;

[0052] After the bottom trailer structure is positioned, the screw elevator controls the support feet 3 to descend to fix the bottom trailer structure.

[0053] Optionally, sliding grooves are provided on two adjacent sides of the transportation and walking structure;

[0054] Two handwheel lead screw assemblies are provided on the sliding groove in the length direction, and one handwheel lead screw assembly is provided on the sliding groove in the width direction.

[0055] Optionally, the auxiliary positioning mechanism 8: three laser emission devices.

[0056] Optionally, among the three laser emission devices, the initial positioning reference of the forward outer laser emission device is the bolt behind the outer front intersection point; the initial positioning reference of the inner laser emission device is the top head of the numerical control jack; the initial positioning reference of the rear laser emission device is the rear crossbeam at the outer intersection point of the rear intersection point.

[0057] Optionally, two support plates are provided on the top surface of the frame 1, and a border is provided around the support plates;

[0058] The universal balls at the bottom of the transportation walking structure are distributed within the two support plates.

[0059] Optionally, product support columns are provided on the top of the transportation walking structure for connecting the components to be docked through pins.

[0060] Figure 1 It is the installation vehicle structure. It includes a frame 1, a wheel set 2, a support leg 3, a trailer interface structure 4, etc.

[0061] Figure 2 It is the upper assembly mechanism: the main body is used for the state when the aircraft lands (and is used for the state when the aircraft is jacked up after installing the bottom frame structure, connected by quick clamps). The upper assembly mechanism includes: a transportation walking mechanism 5, an electric lifting and posture adjustment mechanism 6, a manual adjustment mechanism 7, an auxiliary positioning mechanism 8, etc.

[0062] Figure 3 It is the electric lifting and posture adjustment mechanism: for large-stroke adjustment, two sets of screw jacks drive four sets of large-stroke lead screws in the front and back to achieve large-range and rapid lifting of the overall frame. For small-stroke adjustment, four sets of servo motors respectively drive four sets of small-stroke lead screws on the inner side, and each set of small-stroke lead screws is equipped with a nut seat. The four sets of servo motors drive the product to move in a single left side / single right side / single front side / single rear side by driving the single-side small-stroke lead screws, realizing the pitching and rolling functions of the product.

[0063] Figure 4 It is the handwheel screw assembly 13: universal balls are installed at the bottom of the upper frame, and the X-direction and Y-direction translation and Z-direction rotation functions are realized by using the three-point handwheel screw assembly 13.

[0064] Figure 5 It is the nut seat mechanism: each set of small-stroke lead screws is equipped with a nut seat, and slide rails 14 can be respectively arranged on the side and inside of the nut seat, so as to realize the movement compensation of the nut seat during pitching and rolling. Among them, the nut seat 9 is a fixed support, the nut seat 10 is a Y-direction release support, the nut seat 11 is an X-direction release support, and the nut seat 12 is an X / Y-direction full-release support.

[0065] Figure 6It is an auxiliary positioning mechanism: including a limit block and initial positioning of a laser pointer. The initial positioning reference of the forward outer side laser pointer is the bolt behind the outer front intersection point; the initial positioning reference of the inner side laser pointer is the top head of the numerical control jack; the initial positioning reference of the rear side laser pointer during navigation is the rear crossbeam at the outer intersection point of the rear intersection point.

[0066] To meet the basic jacking requirements of the docking device, the docking device installation vehicle is equipped with two sets of electric attitude adjustment mechanisms. First, when the installation height is greater than 1800 mm due to the external environment, screw jacks are used to replace the forward and rear support feet of the course. The total length of the screw jacks is 850, and the extended travel is 500 mm. Second, it is connected to the product at three points with electric cylinders to achieve pitching and rolling functions, as well as rotation in the X and Y directions and jacking in the Z direction. To meet the stepless adjustment requirements of the docking device, the docking device installation vehicle is equipped with a manual adjustment mechanism. Universal balls are installed at the bottom of the upper frame, and the translation in the X and Y directions and the rotation in the Z direction are realized by using a three-point handwheel screw rod. To meet the translation requirements of the docking device, a synchronous jacking mechanism is provided: using screw jacks to achieve the jacking function with low compression and large lifting stroke. To meet the installation and movement requirements of the docking device, a transportation walking mechanism is provided: adding a universal wheel set with a directional function and adding parking support feet.

[0067] The above specific implementation manners are detailed descriptions of the present invention. It cannot be determined that the specific implementation manners of the present invention are only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions and substitutions can still be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. A docking device for components in a narrow space during aircraft assembly, characterized in that, Including: A bottom trailer structure and an upper assembly mechanism; The bottom trailer structure includes: a frame (1), a wheel set (2), a support leg (3), and a trailer interface structure (4); The frame (1) is provided with a wheel set (2), a support leg (3), and a trailer interface structure (4) around its perimeter; The upper assembly mechanism includes: an electric lifting and posture adjusting mechanism (6), a transportation walking structure (5), a manual adjusting mechanism (7), and an auxiliary positioning mechanism (8); The electric lifting and posture adjusting mechanism (6) includes: a screw jack, a servo motor, a large-stroke lead screw, and a small-stroke lead screw; One screw jack, two servo motors, two large-stroke lead screws, and two small-stroke lead screws are provided on each of two opposite sides of the frame (1). The two large-stroke lead screws on the same side share the same screw jack. The screw jack can simultaneously drive the two sets of large-stroke lead screws connected to it to achieve a large-range and rapid lifting of the overall frame; The four servo motors respectively drive the four inner small-stroke lead screws. Through single left side / single right side / single front side / single rear side driving, the rolling, pitching, and lifting movements of the frame (1) are achieved; A transportation walking structure is provided on the top surface of the frame (1). Universal balls are provided at the bottom of the transportation walking structure, and the top is used to mount the component to be docked. The manual adjusting mechanism includes: a three-point handwheel lead screw assembly for driving the transportation walking structure to translate and / or rotate on a horizontal plane; The auxiliary positioning mechanism is provided on the frame (1) and / or the transportation walking structure for positioning the bottom trailer structure before docking.

2. The docking device for components in a narrow space during the aircraft assembly process according to claim 1, characterized in that, A first nut seat (9), a second nut seat (10), a third nut seat (11), and a fourth nut seat (12) are provided around the perimeter of the frame (1) in a counterclockwise direction; Each small-stroke lead screw is arranged on a nut seat. The first nut seat (9) is a fixed support, the second nut seat (10) is a Y-direction release support, the third nut seat (11) is an X-direction release support, and the fourth nut seat (12) is an X / Y-direction full release support; Sliding rails are provided in the open direction of the nut seat for realizing the sliding of the small-stroke lead screw relative to the sliding rail or the sliding of the nut seat along the sliding rail relative to the frame (1); The four groups of servo motors are synchronously lifted in pairs to achieve the flipping function in the X / Y direction and the jacking function in the Z direction.

3. A docking device for components in a narrow space during aircraft assembly according to claim 2, characterized in that, The support leg (3) is connected to the screw jack; After the bottom trailer structure is positioned, the screw jack controls the support leg (3) to descend to fix the bottom trailer structure.

4. The docking device for components in a narrow space during aircraft assembly according to claim 2, wherein Chute grooves are provided on two adjacent sides of the transportation walking structure; Two handwheel lead screw assemblies are provided on the chute groove in the length direction, and one handwheel lead screw assembly is provided on the chute groove in the width direction.

5. A docking device for components in a narrow space during aircraft assembly according to claim 1, characterized in that, The auxiliary positioning mechanism (8): three laser emission devices.

6. The docking device for components in a narrow space during the aircraft assembly process according to claim 1, characterized in that, Among the three laser emission devices, the initial positioning reference of the forward outer laser emission device is the bolt behind the outer front intersection point; the initial positioning reference of the inner laser emission device is the top of the numerical control jack; the initial positioning reference of the rear laser emission device is the rear crossbeam at the outer intersection point of the rear intersection point.

7. The docking device for components in a narrow space during aircraft assembly according to claim 1, characterized in that Two support plates are provided on the top surface of the frame (1), and a border is provided around the support plates; The universal balls at the bottom of the transportation walking structure are distributed within the two support plates.

8. The docking device for components in a narrow space during aircraft assembly according to claim 1, wherein, Product support columns are provided on the top of the transportation walking structure for connecting the component to be docked through pins.

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