A master-slave switching device

Abstract

The present invention relates to the technical field of aircraft assembly, and discloses a master-slave switching device, comprising: a frame; a moving component disposed on the frame; an intermediate connecting member slidably disposed at the output end of the moving component along a first preset direction, the intermediate connecting member being provided with a fixing portion, and the moving component being capable of driving the intermediate connecting member to move along a second preset direction; a switching driving member, the output end of which is connected to the intermediate connecting member; a clamping seat capable of being connected to the fuselage, and the switching driving member being capable of driving the intermediate connecting member to move along the first preset direction so that the fixing portion can move relative to the clamping seat along the second preset direction, or the fixing portion can drive the clamping seat and the fuselage to move synchronously along the second preset direction. The master-slave switching device disclosed by the present invention can switch from the active assembly mode to the passive assembly mode during the aircraft assembly process to release the stress during the assembly process, and can also be switched to the active assembly mode to complete the aircraft assembly when power is required.

Description

Technical Field

[0001] The present invention relates to the technical field of aircraft assembly, and particularly to a master-slave switching device. Background Art

[0002] During the aircraft assembly process, manual pushing is required to achieve the butt joint assembly of the fuselage. If a fully active assembly mode is adopted, the stress of the fuselage cannot be released during the assembly process, and ultimately, the assembled fuselage may have a deformation problem. Summary of the Invention

[0003] Based on the above, the purpose of the present invention is to provide a master-slave switching device, which can switch from an active assembly mode to a slave assembly mode during the aircraft assembly process to release the stress during the assembly process, and can also switch to an active assembly mode to complete the aircraft assembly when power is needed.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A master-slave switching device includes: a frame; a moving component disposed on the frame; an intermediate connecting member slidably disposed at an output end of the moving component along a first preset direction, a fixing portion being provided on the intermediate connecting member, the moving component being capable of driving the intermediate connecting member to move along a second preset direction; a switching driving member disposed at the output end of the moving component and an output end of the switching driving member being connected to the intermediate connecting member; a clamping seat capable of being connected to the fuselage, the switching driving member being capable of driving the intermediate connecting member to move along the first preset direction, so that the fixing portion can move relative to the clamping seat along the second preset direction, or the fixing portion can drive the clamping seat and the fuselage to move synchronously along the second preset direction.

[0006] As a preferred solution of the master-slave switching device, a transverse chute extending along the second preset direction and a longitudinal slot extending along the first preset direction are provided on the clamping seat, the fixing portion can move along the second preset direction in the transverse chute, and can also extend into the longitudinal slot and drive the clamping seat to move along the second preset direction.

[0007] As a preferred solution of the master-slave switching device, the moving component includes a linear driving component and a connecting seat, an output end of the linear driving component is provided with the connecting seat, at least one of the intermediate connecting members is slidably disposed on the connecting seat, each of the intermediate connecting members is correspondingly disposed with a longitudinal slot, and the linear driving component can drive the connecting seat to drive the intermediate connecting member to move along the second preset direction.

[0008] As a preferred solution of a master-slave switching device, an installation groove and an avoidance groove are provided on the connecting seat. The avoidance groove is located on one side of the installation groove and extends along the first preset direction. The intermediate connecting member is slidably arranged in the installation groove along the first preset direction, and the fixing portion extends out of the avoidance groove.

[0009] As a preferred solution of a master-slave switching device, the linear driving assembly includes a motor and a ball screw. The ball screw includes a screw rod drivingly connected to the output end of the motor and a nut screwed on the screw rod. The nut is connected to the connecting seat, and the motor can drive the screw rod to drive the nut, the connecting seat and the intermediate connecting member to move along the second preset direction.

[0010] As a preferred solution of a master-slave switching device, the number of the clamping seats is two. The two clamping seats are respectively located on both sides of the moving assembly, and each clamping seat is correspondingly arranged with a switching driving member.

[0011] As a preferred solution of a master-slave switching device, the fixing portion includes a connecting arm and a rotating bearing. The intermediate connecting member further includes an intermediate shaft fixedly connected to the connecting arm. The intermediate shaft is perpendicular to the connecting arm. The rotating bearing is arranged on the connecting arm, and the rotating bearing can abut against the clamping seat and drive the clamping seat and the fuselage to move along the second preset direction.

[0012] As a preferred solution of a master-slave switching device, the intermediate connecting member further includes a linear bearing extending along the first preset direction. The linear bearing is sleeved on the intermediate shaft.

[0013] As a preferred solution of a master-slave switching device, the master-slave switching device further includes a first grating scale and an upper moving assembly for fixing the fuselage. The upper moving assembly is fixed on the clamping seat and is slidably connected to the frame. The first grating scale is arranged on the clamping seat or the upper moving assembly and is used for measuring the moving distance of the fuselage.

[0014] As a preferred solution of a master-slave switching device, the master-slave switching device further includes a second grating scale. The second grating scale is arranged at the output end of the moving assembly and is used for measuring the moving distance of the movable end of the moving assembly.

[0015] The beneficial effects of the present invention are as follows: For the master-slave switching device disclosed in the present invention, when the intermediate connecting member can drive the card seat to move along the second preset direction, the moving assembly can drive the card seat and the fuselage to move through the intermediate connecting member, realizing the active assembly mode; when the intermediate connecting member cannot drive the card seat to move along the second preset direction, the moving assembly cannot drive the card seat and the fuselage to move through the intermediate connecting member. At this time, it is in the slave assembly mode. The switching between the two assembly modes can be achieved by driving the intermediate connecting member along the first preset direction through the switching driving member. The operation is relatively simple. Switching from the active assembly mode to the slave assembly mode can release the stress generated during the assembly process and reduce the possibility of fuselage deformation. When power is required, it can be switched back to the active assembly mode to complete the assembly of the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the embodiments of the present invention and these drawings.

[0017] Figure 1 is a schematic diagram of the master-slave switching device provided by a specific embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of a partial structure of the master-slave switching device provided by a specific embodiment of the present invention;

[0019] Figure 3 is a schematic diagram of the intermediate connecting member of the master-slave switching device provided by a specific embodiment of the present invention.

[0020] In the figure:

[0021] 1, frame;

[0022] 2, moving assembly; 21, linear drive assembly; 22, connecting seat; 220, avoidance groove;

[0023] 3, intermediate connecting member; 31, fixing part; 311, connecting arm; 312, rotating bearing; 32, linear bearing;

[0024] 4, switching drive member;

[0025] 5, card seat; 501, transverse chute; 502, longitudinal card slot;

[0026] 61, first grating ruler; 62, second grating ruler;

[0027] 7, upper moving assembly;

[0028] 81. First slide rail; 82. Second slide rail. Detailed implementation manners

[0029] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. 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 situations.

[0032] This embodiment provides a master-slave switching device, as Figures 1 to 3 shown, including a frame 1, a moving component 2, an intermediate connecting piece 3, a switching driving piece 4 and a clamping seat 5. The moving component 2 is arranged on the frame 1. The intermediate connecting piece 3 is slidably arranged at the output end of the moving component 2 along a first preset direction. A fixing part 31 is provided on the intermediate connecting piece 3. The moving component 2 can drive the intermediate connecting piece 3 to move along a second preset direction. The switching driving piece 4 is arranged at the output end of the moving component 2 and the output end of the switching driving piece 4 is connected to the intermediate connecting piece 3. The clamping seat 5 can be connected to the fuselage. The switching driving piece 4 can drive the intermediate connecting piece 3 to move along the first preset direction, so that the fixing part 31 can move relative to the clamping seat 5 along the second preset direction, or the fixing part 31 drives the clamping seat 5 and the fuselage to move synchronously along the second preset direction.

[0033] Specifically, the switching driving member 4 in this embodiment is a cylinder, the first preset direction is the height direction of the frame 1, the second preset direction is the length direction of the frame 1, and the intermediate connecting member 3 is slidably arranged at the output end of the moving assembly 2 in the height direction, so that while the moving assembly 2 drives the intermediate connecting member 3 to move in the length direction of the frame 1, the switching driving member 4 can also drive the intermediate connecting member 3 to move in the height direction.

[0034] For the master-slave switching device provided in this embodiment, when the intermediate connecting member 3 can drive the clamping seat 5 to move in the second preset direction, the moving assembly 2 can drive the clamping seat 5 and the fuselage to move through the intermediate connecting member 3, realizing the active assembly mode; and when the intermediate connecting member 3 cannot drive the clamping seat 5 to move in the second preset direction, the moving assembly 2 cannot drive the clamping seat 5 and the fuselage to move through the intermediate connecting member 3. At this time, it is in the slave assembly mode. The switching between the two assembly modes can be realized by driving the intermediate connecting member 3 in the first preset direction through the switching driving member 4. The operation is relatively simple. Switching from the active assembly mode to the slave assembly mode can release the stress generated during the assembly process and reduce the possibility of fuselage deformation. When power is needed, it can be switched back to the active assembly mode to complete the assembly of the aircraft.

[0035] As Figure 1 shown, the master-slave switching device of this embodiment further includes a first grating ruler 61 and an upper moving assembly 7 for fixing the fuselage. The upper moving assembly 7 is fixed on the clamping seat 5 and is slidably connected to the frame 1. The first grating ruler 61 is arranged on the clamping seat 5 or the upper moving assembly 7 and is used to measure the moving distance S1 of the fuselage. Specifically, the upper moving assembly 7 is slidably connected to the frame 1 through a first slide rail 81. Since the upper moving assembly 7 is slidably arranged on the frame 1, the upper moving assembly 7 and the fuselage will not produce jitter in the vertical direction relative to the frame 1, avoiding the phenomenon of jerks during the assembly of the aircraft and ensuring that the fuselage always slides smoothly with the upper moving assembly 7.

[0036] As Figure 1 shown, the master-slave switching device of this embodiment further includes a second grating ruler 62. The second grating ruler 62 is arranged at the output end of the moving assembly 2 and is used to measure the moving distance S2 of the moving end of the moving assembly 2. The bottom end of the upper moving assembly 7 of this embodiment is provided with a second slide rail 82. The output end of the moving assembly 2 is slidably connected to the second slide rail 82. When in the active assembly mode, the upper moving assembly 7 and the moving end of the moving assembly 2 move synchronously and there is no relative movement between them; when in the slave assembly mode, there is relative movement between the upper moving assembly 7 and the moving end of the moving assembly 2, and the output end of the moving assembly 2 moves along the second slide rail 82 relative to the upper moving assembly 7. In order to prevent the output end of the moving assembly 2 from disengaging from the second slide rail 82, it is required that (S1 - S2) ≤ (0.8 - 0.9) * L, where L is the length of the second slide rail 82.

[0037] As Figure 2 shown, on the card seat 5 of this embodiment, there are a transverse sliding groove 501 extending along the second preset direction and a longitudinal card slot 502 extending along the first preset direction. The fixing part 31 can move along the second preset direction in the transverse sliding groove 501, and can also extend into the longitudinal card slot 502 and drive the card seat 5 to move along the second preset direction. Specifically, when the switching driving part 4 drives the intermediate connecting part 3 to move downward along the first preset direction, the fixing part 31 can move into the longitudinal card slot 502, so that the master-slave switching device is in the active assembly mode; when the switching driving part 4 drives the intermediate connecting part 3 to move upward along the first preset direction, the fixing part 31 can disengage from the longitudinal card slot 502 and enter the transverse sliding groove 501, so that the intermediate connecting part 3 cannot drive the card seat 5 to move along the second preset direction. At this time, the master-slave switching device is in the slave assembly mode.

[0038] As Figure 1 shown, the moving component 2 of this embodiment includes a linear driving component 21 and a connecting seat 22. The output end of the linear driving component 21 is provided with a connecting seat 22. Six intermediate connecting parts 3 are slidably arranged on the connecting seat 22. Each intermediate connecting part 3 is correspondingly arranged with a longitudinal card slot 502. The linear driving component 21 can drive the connecting seat 22 to drive the intermediate connecting parts 3 to move along the second preset direction. Specifically, the number of card seats 5 in this embodiment is two. The two card seats 5 are respectively located on both sides of the moving component 2. Each card seat 5 is correspondingly arranged with a switching driving part 4. Three longitudinal card slots 502 are provided on each card seat 5. The two arranged card seats 5 make the acting force of the intermediate connecting part 3 on the card seat 5 located on both sides of the moving component 2, avoiding that in the process of the intermediate connecting seat 22 driving the card seat 5 to move along the second preset direction, due to the large acting force of the intermediate connecting seat 22 on the card seat 5, the card seat 5, the upper moving component 7 and the fuselage move along a direction deviating from the second preset direction, ensuring that in the active assembly mode, the intermediate connecting part 3 can drive the card seat 5, the upper moving component 7 and the fuselage to move along the second preset direction.

[0039] Further, the linear drive assembly 21 of this embodiment includes a motor and a ball screw. The ball screw includes a screw rod drivingly connected to the output end of the motor and a nut screwed onto the screw rod. The nut is connected to the connecting seat 22. The motor can drive the screw rod to drive the nut, the connecting seat 22 and the intermediate connecting member 3 to move in the second preset direction. The ball screw of this embodiment improves the movement accuracy of the linear drive assembly 21, ensuring that the linear drive assembly 21 can drive the connecting seat 22 to drive the intermediate connecting member 3 to move to a position where the fixing portion 31 is directly opposite to the longitudinal card slot 502, so that the switching drive member 4 can directly move the fixing portion 31 of the intermediate connecting member 3 into the longitudinal card slot 502, thereby enabling the linear drive assembly 21 to drive the card seat 5, the upper moving assembly 7 and the fuselage to move in the second preset direction. In other embodiments, the linear drive assembly 21 can also be a cylinder, a hydraulic cylinder or an electric push rod, etc., which is specifically set according to the actual needs of the user.

[0040] As Figure 2 shown, the connecting seat 22 of this embodiment is provided with a mounting groove (not shown in the figure) and an avoidance groove 220. The avoidance groove 220 is located on one side of the mounting groove and extends along the first preset direction. The intermediate connecting member 3 is slidably arranged in the mounting groove along the first preset direction, and the fixing portion 31 extends out of the avoidance groove 220. When the intermediate connecting member 3 moves along the first preset direction, the intermediate connecting member 3 moves in the mounting groove along the first preset direction, and at the same time, the fixing portion 31 synchronously moves in the avoidance groove 220 along the first preset direction.

[0041] As Figure 1 shown, the fixing portion 31 of this embodiment includes a connecting arm 311 and a rotating bearing 312. The outer diameter of the rotating bearing 312 is slightly smaller than the width of the longitudinal card slot 502, avoiding the phenomenon that the fixing portion 31 is stuck in the longitudinal card slot 502. The intermediate connecting member 3 further includes an intermediate shaft fixedly connected to the connecting arm 311 and a linear bearing 32 extending along the first preset direction. The intermediate shaft is perpendicular to the connecting arm 311. The rotating bearing 312 is arranged on the connecting arm 311. The rotating bearing 312 can abut against the card seat 5 and drive the card seat 5 and the fuselage to move in the second preset direction. The linear bearing 32 is sleeved on the intermediate shaft. The provided linear bearing 32 enables the intermediate connecting member 3 to move in a straight line direction. The provided rotating bearing 312 can rotate relative to the card seat 5 when the fixing portion 31 contacts the card seat 5, so that the contact between the rotating bearing 312 and the card seat 5 is rolling friction, reducing the wear of the fixing portion 31 on the card seat 5. When the fixing portion 31 moves in the transverse sliding groove 501, the rotating bearing 312 rotates, making the fixing portion 31 in rolling contact with the card seat 5, also reducing the wear of the fixing portion 31 on the card seat 5.

[0042] When the master-slave switching device switches from the slave assembly mode to the master assembly mode, if the fixing part 31 does not directly snap into the longitudinal card slot 502 and the fixing part 31 abuts against the card seat 5, assuming the total output force of the switching driving part 4 is F, F is upward along the vertical direction, the included angle between F and the radial direction of the rotating bearing 312 is θ, the normal component force F1 of F is Fcosθ, and the component force T of F1 on the card seat 5 in the horizontal direction is T = F1sinθ = Fcosθsinθ = Fsin2θ / 2. Specifically, according to on-site measurement, in the slave assembly mode, T is approximately equal to 150N. If θ is 45°, the total output force F of the switching driving part 4 is deduced to be 300N. A cylinder with a cylinder diameter of 20mm and a stroke of 20mm is selected for the switching driving part 4. Under a gas pressure of 0.6MPa, the output force of each switching driving part 4 can reach 188N, and 2 switching driving parts 4 are sufficient to drive the upper moving assembly 7 to move.

[0043] Note that the above is only the preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A master-slave switching device, characterized in that, include: Rack (1); A moving component (2) is arranged on the frame (1); an intermediate connecting member (3) slidably arranged at the output end of the moving assembly (2) along a first preset direction, a fixing portion (31) being provided on the intermediate connecting member (3), and the moving assembly (2) being capable of driving the intermediate connecting member (3) to move along a second preset direction; A switching drive member (4) is provided at the output end of the moving component (2), and the output end of the switching drive member (4) is connected to the intermediate connecting member (3); The card holder (5) is connectable to the body, and the switching drive member (4) is capable of driving the intermediate connecting member (3) to move along the first preset direction, so that the fixing portion (31) can move relative to the card holder (5) along the second preset direction, or the fixing portion (31) drives the card holder (5) and the body to move synchronously along the second preset direction; The card holder (5) is provided with a transverse sliding groove (501) extending along the second preset direction and a longitudinal card groove (502) extending along the first preset direction. The fixing portion (31) can move along the second preset direction in the transverse sliding groove (501) and can also extend into the longitudinal card groove (502) and drive the card holder (5) to move along the second preset direction.

2. The master-slave switching device according to claim 1, characterized in that The moving assembly (2) comprises a linear drive assembly (21) and a connecting seat (22); the connecting seat (22) is provided at the output end of the linear drive assembly (21); at least one intermediate connecting member (3) is slidably provided on the connecting seat (22); each intermediate connecting member (3) is provided corresponding to one of the longitudinal slots (502); and the linear drive assembly (21) is capable of driving the connecting seat (22) to drive the intermediate connecting member (3) to move along the second preset direction.

3. The master-slave switching device according to claim 2, wherein The connecting seat (22) is provided with a mounting groove and an avoidance groove (220), the avoidance groove (220) is located on one side of the mounting groove and extends along the first preset direction, the intermediate connecting member (3) is slidably arranged in the mounting groove along the first preset direction, and the fixing portion (31) extends out of the avoidance groove (220).

4. The master-slave switching device according to claim 2, characterized in that, The linear drive assembly (21) includes a motor and a ball screw, the ball screw includes a screw rod that is transmission-connected to the output end of the motor and a nut that is screwed onto the screw rod, the nut is connected to the connecting seat (22), and the motor can drive the screw rod to drive the nut, the connecting seat (22) and the intermediate connecting member (3) to move along the second preset direction.

5. The master-slave switching device according to claim 1, characterized in that There are two card seats (5), and the two card seats (5) are respectively located on both sides of the moving component (2), and each card seat (5) is correspondingly arranged with one switching drive member (4).

6. The master-slave switching device according to claim 1, wherein The fixing part (31) includes a connecting arm (311) and a rotating bearing (312). The intermediate connecting member (3) further includes an intermediate shaft fixedly connected to the connecting arm (311). The intermediate shaft is perpendicular to the connecting arm (311). The rotating bearing (312) is arranged on the connecting arm (311). The rotating bearing (312) can abut against the card holder (5) and drive the card holder (5) and the fuselage to move along the second preset direction.

7. The master-slave switching device according to claim 6, characterized in that: The intermediate connecting member (3) further includes a linear bearing (32) extending along the first preset direction. The linear bearing (32) is sleeved on the intermediate shaft.

8. The master-slave switching device according to claim 1, characterized in that: The master-slave switching device further includes a first grating scale (61) and an upper moving component (7) for fixing the fuselage. The upper moving component (7) is fixed on the card holder (5) and is slidably connected to the frame (1). The first grating scale (61) is arranged on the card holder (5) or the upper moving component (7) and is used for measuring the moving distance of the fuselage.

9. The master-slave switching device according to claim 1, characterized in that: The master-slave switching device further includes a second grating scale (62). The second grating scale (62) is arranged at the output end of the moving component (2) and is used for measuring the moving distance of the movable end of the moving component (2).

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