An aircraft landing gear welding apparatus and method

Abstract

The application discloses an aircraft landing gear welding device and method, which comprises a support plate, a fixed plate, four installation plates, a placing plate, a transmission plate, a rotating plate, a fixed plate for fixing a landing gear, a lifting plate, a rotating disc, a welding head, a limiting plate and a traction rope.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to an aircraft landing gear welding apparatus and method. Background Technology

[0002] Landing gear is an accessory device on the lower part of an aircraft used to support the aircraft during takeoff, landing, or taxiing and to facilitate ground movement. Landing gear is a load-bearing and controllable component of an aircraft, and it is usually installed on the bottom of the aircraft by welding.

[0003] Existing landing gear welding equipment typically uses clamping devices to fix the landing gear to the aircraft, and the welding is done manually by the user holding a welding gun. This cannot guarantee the quality of the welding and cannot achieve automatic welding of the landing gear. Since the landing gear is placed vertically and has a certain height, the worker needs to lift the welding gun upwards to weld, which poses certain safety hazards to the welding work. Summary of the Invention

[0004] The purpose of this invention is to provide an aircraft landing gear welding apparatus and method to solve the problem of inconvenience in existing landing gear welding.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An aircraft landing gear welding apparatus and method, comprising a support plate, and further comprising:

[0007] A fixed plate, wherein an mounting plate is slidably disposed inside the support plate, a placement plate is disposed between the four mounting plates, a transmission plate is rotatably disposed on the mounting plate, a rotating plate is fixedly disposed at one end of the transmission plate, and a fixed plate for fixing the landing gear is disposed at the top end of the rotating plate.

[0008] A lifting plate is provided, with a cylinder and a drive plate below the lifting plate, a turntable provided on the side wall of the support plate, a sliding rod provided between the lifting plate and the turntable, a support frame provided at the top of the sliding rod, a welding head for welding the landing gear provided inside the support frame, a first limiting plate provided on the side wall of the lifting plate, and a traction rope provided inside the sliding rod, with both ends of the traction rope connected to the first limiting plate and the welding head respectively.

[0009] The transmission mechanism is located between the lifting plate and the transmission plate;

[0010] A drive mechanism is connected to the drive plate; a cylinder drives the lifting plate and support plate to move upward, and the landing gear contacts the bottom of the spacecraft. The lifting plate drives the transmission plate to rotate through cooperation with the transmission mechanism. The transmission plate drives the four fixed plates to move closer to each other and fix the landing gear by driving the rotating plate to rotate. The lifting plate pulls the welding head out of the support frame by pulling the traction rope. The drive mechanism drives the drive plate and turntable to rotate. The sliding rod welds the landing gear by driving the welding head to rotate.

[0011] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0012] In one alternative embodiment, the transmission mechanism includes a movable plate slidably disposed on the lifting plate, a fixed block fixedly disposed inside the movable plate, and a transmission rod disposed between the fixed block and the transmission plate.

[0013] In one alternative embodiment, the drive mechanism includes a base disposed below the drive plate, a motor disposed inside the base, and a connecting rod disposed between the turntable and the drive plate.

[0014] In one alternative: a limiting groove is provided at the center of the movable plate, a second limiting plate is provided below the placement plate, and a connecting spring is provided between the second limiting plate and the placement plate.

[0015] In one alternative: one end of the connecting rod passes through the turntable and slides with it; a support frame is provided inside the connecting rod; bolts are provided on the side wall of the support frame; a guide wheel is rotatably provided on the top of the support frame; the traction rope passes through the interior of the connecting plate and contacts the side wall of the guide wheel; and a caster wheel is provided below the base.

[0016] In one alternative: a limit block is provided inside the sliding rod, and a movable rod is slidably mounted on the limit block, with both ends of the movable rod connected to a traction rope.

[0017] In one alternative: a sliding plate is provided inside the support frame, a welding head is provided on the side wall of the sliding plate, a return spring is provided on the other side of the sliding plate, and one end of the traction rope is connected to the sliding plate.

[0018] In one alternative: a welding method using an aircraft landing gear welding apparatus includes the following steps:

[0019] 1) Place the landing gear to be welded on the placement plate, with the bottom of the landing gear in contact with the second limiting plate. Adjust the height of the guide wheel according to the welding height of the spacecraft.

[0020] 2) Move the landing gear welding assembly below the spacecraft weld and stop moving it;

[0021] 3) Purge the cylinder to allow the lifting plate to lift the support plate and placement plate and bring them close to the bottom of the spacecraft. The landing gear will rise vertically to below the weld. During the rise, make minor adjustments to the position of the landing gear. After the landing gear is in full contact with the spacecraft, close the cylinder.

[0022] 4) Turn on the motor. The motor drives the turntable and welding head to rotate. The welding head rotates along the weld seam. Turn on the welding machine connected to the welding head to weld the landing gear until the landing gear is firmly welded to the spacecraft. Once the welding work is completed, unload the welding device.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] The aircraft landing gear welding device uses a cylinder to drive the lifting plate and support plate upwards, bringing the landing gear into contact with the bottom of the spacecraft. The lifting plate, in conjunction with the transmission mechanism, drives the transmission plate to rotate. The transmission plate, by driving the rotating plate, moves the four fixed plates closer together and fixes the landing gear, ensuring stability during welding. The lifting plate pulls the welding head out of the support frame by pulling the traction rope. The drive mechanism drives the drive plate and turntable to rotate, and the sliding rod welds the landing gear by driving the welding head to rotate. This eliminates the need for manual welding with a handheld welding gun, ensuring operational safety during landing gear welding. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an aircraft landing gear welding device.

[0026] Figure 2 This is a front view of the aircraft landing gear welding assembly.

[0027] Figure 3 This is a schematic diagram of the support plate in the landing gear welding device of an aircraft.

[0028] Figure 4 This is a cross-sectional view of the support plate in the aircraft landing gear welding assembly.

[0029] Figure 5 This is a cross-sectional view of the sliding rod in the landing gear welding assembly of an aircraft.

[0030] Figure 6 This is a cross-sectional view of the connecting rod in the landing gear welding assembly of an aircraft.

[0031] Figure reference numerals: 1-Welding head, 2-Support plate, 201-Mounting groove, 202-Sliding groove, 3-Lifting plate, 4-Movable plate, 401-Limiting groove, 5-Drive plate, 6-Base, 7-Cylinder, 8-Drive rod, 9-Second limiting plate, 10-Connecting spring, 11-Placement plate, 111-Placement groove, 12-Mounting plate, 13-Rotating plate, 14-Transmission plate, 15-Transmission rod, 16-Fixing block, 17-Fixing 18-Fixing bolt, 19-First limiting plate, 20-Traction rope, 21-Sliding rod, 211-Fixing groove, 22-Connecting rod, 23-Guide wheel, 24-Turntable, 25-Sleeve, 26-Support frame, 27-Pull plate, 28-Reset spring, 29-Motor, 30-Fixing plate, 31-Limiting block, 32-Spring, 33-Moving rod, 34-Telescopic spring, 35-Support block, 36-Universal wheel, 37-Bolt. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0033] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0034] like Figure 1-5 As shown, an aircraft landing gear welding device according to an embodiment of the present invention includes a support plate 2, and further includes:

[0035] The fixed plate 30, the support plate 2 has a circular structure and a sliding groove 202 is opened on the inner side. The mounting plate 12 is slidably arranged inside the sliding groove 202. The four mounting plates 12 are fixedly connected to the placement plate 11. The placement plate 11 has multiple placement slots 111 for placing the landing gear, which facilitates the placement of landing gear of different shapes. The multiple mounting plates 12 are rotatably arranged with a transmission plate 14. A rotating plate 13 is fixedly arranged at one end of the transmission plate 14. The top of the rotating plate 13 is provided with a fixed plate 30 for fixing the landing gear. The four fixed plates 30 are distributed around the landing gear. The fixed plates 30 are made of rubber material to prevent scratching the landing gear.

[0036] A lifting plate 3 is provided, and a drive plate 5 is provided below the lifting plate 3. The drive plate 5 is a cylindrical plate. A cylinder 7 is fixedly installed on one side of the drive plate 5. A drive rod 8 is provided at the telescopic end of the cylinder 7. The lifting plate 3 is fixedly installed on the top of the drive rod 8. An installation groove 201 is provided on the outer wall of the support plate 2. A turntable 24 is slidably arranged inside the installation groove 201. A first limiting plate 19 is provided on the side wall of the lifting plate 3. A sleeve 25 is fixedly arranged on the turntable 24. A sliding rod 21 is slidably arranged inside the sleeve 25. A support plate 35 is fixedly installed at the bottom of the moving rod 21. A telescopic spring 34 is installed between the support plate 35 and the first limiting plate 19. A support frame 26 is fixedly installed at the top of the sliding rod 21. A welding head 1 for welding the landing gear is installed inside the support frame 26. The sliding rod 21 is a hollow square rod. A traction rope 20 is installed inside the sliding rod 21. One end of the traction rope 20 passes through the support frame 26 and is connected to the welding head 1. The other end of the traction rope 20 is connected to the first limiting plate 19.

[0037] The transmission mechanism is located between the lifting plate 3 and the transmission plate 14;

[0038] The drive mechanism is connected to the drive plate 5; the cylinder 7 drives the lifting plate 3 and the support plate 2 to move upward, and the landing gear contacts the bottom of the spacecraft. The lifting plate 3 drives the transmission plate 14 to rotate through cooperation with the transmission mechanism. The transmission plate 14 drives the four fixed plates 30 to move closer to each other and fix the landing gear by driving the rotating plate 13 to rotate. The lifting plate 3 pulls the welding head 1 out of the support frame 26 by pulling the traction rope 20. The drive mechanism drives the drive plate 5 and the turntable 24 to rotate. The sliding rod 21 welds the landing gear by driving the welding head 1 to rotate.

[0039] like Figure 2 As shown, in a preferred embodiment of the present invention, the transmission mechanism includes a movable plate 4 slidably disposed on the lifting plate 3, a fixed block 16 fixedly disposed inside the movable plate 4, and a transmission rod 15 disposed between the fixed block 16 and the transmission plate 14. The movable plate 4 has a plurality of square slots, and a fixed rod 17 is fixedly disposed inside the square slots. The fixed block 16 is slidably disposed on the fixed rod 17, which can adjust the position of the fixed block 16. The fixed block 16 is fixed by a fixing bolt 18, and the transmission rod 15 is hinged between the fixed block 16 and the transmission plate 14.

[0040] like Figure 2 As shown, in a preferred embodiment of the present invention, the driving mechanism includes a base 6 disposed below the driving plate 5, a motor 29 disposed inside the base 6, and a connecting rod 22 disposed between the turntable 24 and the driving plate 5. The connecting rod 22 is fixedly disposed on the driving plate 5, and one end of the connecting rod 22 passes through the turntable 24 and slides with it.

[0041] like Figure 1 As shown, in a preferred embodiment of the present invention, a limiting groove 401 is formed at the center of the movable plate 4, and a second limiting plate 9 is provided below the placement plate 11. A connecting spring 10 is provided between the second limiting plate 9 and the placement plate 11. The bottom of the landing gear passes through the placement groove 111 and contacts the second limiting plate 9. The cylinder 7 drives the lifting plate 3 and the movable plate 4 to rise, and the placement plate 11 drives the landing gear to rise. When the landing gear 11 contacts the bottom of the spacecraft, the placement plate 11 and the support plate 2 can no longer rise, and the lifting plate 3 drives the movable plate 4 to rise. 4 drives the transmission rod 15 to flip to both sides, the transmission plate 14 drives the rotating plate 13 to rotate downward, the rotating plate 13 drives the fixed plate 30 to move closer to the landing gear, and multiple fixed plates 30 fix the landing gear to prevent the landing gear from shaking during welding. The bottom of the landing gear presses against the second limit plate 9, the second limit plate 9 slides into the limit groove 401, and the cylinder 7 stops. Since the movable plate 4 is stuck and cannot rotate, the motor 29 can drive the drive plate 5 to rotate. The drive plate 5 drives the turntable 24 to rotate through the connecting rod 22. The turntable 24 drives the welding head 1 to weld the landing gear.

[0042] like Figure 6 As shown, in a preferred embodiment of the present invention, a support frame 26 is provided inside the connecting rod 22, and bolts 37 are provided on the side wall of the support frame 26. A guide wheel 23 is rotatably provided on the top of the support frame 26. The traction rope 20 passes through the interior of the connecting plate 22 and contacts the side wall of the guide wheel 23. A caster wheel 36 is provided below the base 6. The support frame 26 can drive the guide wheel 23 to move up and down. Since the height of the guide wheel 23 is different, the length by which the traction rope 20 pulls down the sliding rod 21 is different, so the working height of the support frame 26 is also different. The working height of the guide wheel 23 can be adjusted according to the required welding height. After adjustment, the nut on the bolt 37 is tightened.

[0043] like Figure 5As shown, in a preferred embodiment of the present invention, a limiting block 31 is provided inside the sliding rod 21, and a movable rod 33 is slidably disposed on the limiting block 31. Both ends of the movable rod 33 are connected to the traction rope 20. A fixing groove 211 is provided on the side wall of the sliding rod 21, and the limiting block 31 is slidably disposed inside the fixing groove 211. During the upward movement of the turntable 24 and the lifting plate 3, since the traction rope 20 is connected to the guide wheel 23, the traction rope 20 pulls the movable rod 33 downward. The movable rod 33 drives the limiting block 31 to move downward, and the limiting block 31 and the fixing groove are connected. After the bottom of 211 contacts each other, the sliding rod 21 is pulled down, so that the support frame 26 and welding head 1 at the top of the sliding rod 21 can no longer rise. The height of the support frame 26 can be controlled by adjusting the height of the guide wheel 23. The turntable 24 stops moving, the lifting plate 3 continues to rise, the tension of the traction rope 20 increases, and the traction rope 20 pulls the movable rod 33 down along the limit block 31. The movable rod 33 pulls the welding head 1 outward through the traction rope 20 set at the top. The welding head 1 extends towards the weld position. When the position of the welding head 1 is appropriate, the rise of the lifting plate 3 stops.

[0044] like Figure 1 As shown, in a preferred embodiment of the present invention, a sliding plate 27 is provided inside the support frame 26, a welding head 1 is provided on the side wall of the sliding plate 27, and a return spring 28 is provided on the other side of the sliding plate 27.

[0045] A welding method for an aircraft landing gear welding device includes the following steps:

[0046] 1) Place the landing gear to be welded on the placement plate 11, with the bottom of the landing gear in contact with the second limiting plate 9. Adjust the usage height of the guide wheel 23 according to the welding height of the spacecraft.

[0047] 2) Move the landing gear welding assembly below the spacecraft weld and stop moving it;

[0048] 3) Purge cylinder 7 to allow the lifting plate 3 to lift the support plate 2 and the placement plate 11 and bring them close to the bottom of the spacecraft. The landing gear will rise vertically to below the weld. During the rise, the position of the landing gear will be finely adjusted. After the landing gear is in full contact with the spacecraft, cylinder 7 will be closed.

[0049] 4) Turn on motor 29. Motor 29 drives turntable 24 and welding head 1 to rotate. Welding head 1 rotates along the weld seam. Turn on the welding machine connected to welding head 1 to weld the landing gear until the landing gear is firmly welded to the spacecraft. The welding work is completed. Then unload the welding device.

[0050] In one embodiment, the structure of the transmission mechanism is not limited, and a gear and rack mechanism can be used to drive the fixed plate 30 to move approximately. In this embodiment, preferably, please refer to [reference needed]. Figure 2 The transmission mechanism uses a transmission rod 15 and a transmission plate 14 for transmission.

[0051] The above embodiments of the present invention provide an aircraft landing gear welding device and method. By moving the guide wheel 23 up and down, the height of the support frame 26 can be adjusted. During the process of the lifting plate 3 rising, the welding head 1 is pulled outward by the traction rope 20. The turntable 24 drives the welding head 1 to rotate and weld the landing gear, thus realizing the automatic welding of the landing gear.

[0052] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An aircraft landing gear welding device, comprising a support plate, characterized in that, Also includes: A fixed plate, wherein an mounting plate is slidably disposed inside the support plate, a placement plate is disposed between the four mounting plates, a transmission plate is rotatably disposed on the mounting plate, a rotating plate is fixedly disposed at one end of the transmission plate, and a fixed plate for fixing the landing gear is disposed at the top end of the rotating plate. A lifting plate is provided, with a cylinder and a drive plate below the lifting plate, a turntable provided on the side wall of the support plate, a sliding rod provided between the lifting plate and the turntable, a support frame provided at the top of the sliding rod, a welding head for welding the landing gear provided inside the support frame, a first limiting plate provided on the side wall of the lifting plate, and a traction rope provided inside the sliding rod, with both ends of the traction rope connected to the first limiting plate and the welding head respectively. The transmission mechanism is located between the lifting plate and the transmission plate; A drive mechanism is connected to the drive plate; a cylinder drives the lifting plate and support plate to move upward, and the landing gear contacts the bottom of the spacecraft. The lifting plate drives the transmission plate to rotate through cooperation with the transmission mechanism. The transmission plate drives the four fixed plates to move closer to each other and fix the landing gear by driving the rotating plate to rotate. The lifting plate pulls the welding head out of the support frame by pulling the traction rope. The drive mechanism drives the drive plate and turntable to rotate. The sliding rod welds the landing gear by driving the welding head to rotate.

2. The aircraft landing gear welding apparatus according to claim 1, characterized in that, The transmission mechanism includes a movable plate that is slidably mounted on the lifting plate, a fixed block that is fixedly mounted inside the movable plate, and a transmission rod that is mounted between the fixed block and the transmission plate.

3. The aircraft landing gear welding apparatus according to claim 1, characterized in that, The drive mechanism includes a base disposed below the drive plate, a motor disposed inside the base, and a connecting rod disposed between the turntable and the drive plate.

4. The aircraft landing gear welding apparatus according to claim 2, characterized in that, A limiting groove is provided at the center of the movable plate, and a second limiting plate is provided below the placement plate. A connecting spring is provided between the second limiting plate and the placement plate.

5. The aircraft landing gear welding apparatus according to claim 3, characterized in that, One end of the connecting rod passes through the turntable and slides with it. A support frame is provided inside the connecting rod. Bolts are provided on the side wall of the support frame. A guide wheel is rotatably provided on the top of the support frame. The traction rope passes through the inside of the connecting plate and contacts the side wall of the guide wheel. A caster wheel is provided below the base.

6. The aircraft landing gear welding apparatus according to claim 5, characterized in that, The sliding rod is provided with a limit block inside, and a movable rod is slidably mounted on the limit block. Both ends of the movable rod are connected to the traction rope.

7. The aircraft landing gear welding apparatus according to claim 1, characterized in that, A sliding plate is provided inside the support frame, a welding head is provided on the side wall of the sliding plate, a return spring is provided on the other side of the sliding plate, and one end of the traction rope is connected to the sliding plate.

8. A welding method using the aircraft landing gear welding apparatus according to any one of claims 1-7, characterized in that, Includes the following steps: 1) Place the landing gear to be welded on the placement plate, with the bottom of the landing gear in contact with the second limiting plate. Adjust the height of the guide wheel according to the welding height of the spacecraft. 2) Move the landing gear welding assembly below the spacecraft weld and stop moving it; 3) Purge the cylinder to allow the lifting plate to lift the support plate and placement plate and bring them close to the bottom of the spacecraft. The landing gear will rise vertically to below the weld. During the rise, make minor adjustments to the position of the landing gear. After the landing gear is in full contact with the spacecraft, close the cylinder. 4) Turn on the motor. The motor drives the turntable and welding head to rotate. The welding head rotates along the weld seam. Turn on the welding machine connected to the welding head to weld the landing gear until the landing gear is firmly welded to the spacecraft. Once the welding work is completed, unload the welding device.

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