A drone landing gear welding equipment

Abstract

This invention relates to the field of welding technology and discloses a welding equipment for unmanned aerial vehicle (UAV) landing gear, including a welding table and a landing gear. The landing gear includes support legs and a support plate. An mounting plate is fixedly installed on the welding table. A sliding groove is formed on the inner side of the welding table. Clamping rollers are inserted through the inclined groove of the placement plate and are located on both sides of the support plate. Limiting frames are slidably set at the lower end of the placement plate. The clamping rollers slide in contact with the limiting frames. When the support plate needs to be clamped, the support plate is placed between the clamping rollers, and the two limiting frames are controlled to move, so that the clamping rollers move to clamp the support plate. It can accommodate the clamping of support plates of different widths. During the entire clamping process, through the cooperation of a telescopic spring, a rotating rod, a pulley, and a conveyor belt, the two clamping rollers at corresponding positions can always be in the same direction of rotation. During welding, if the support plate is subjected to force, the clamping rollers on both sides exert opposite forces on the support plate to prevent the support plate from shifting.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to a welding device for unmanned aerial vehicle (UAV) landing gear. Background Technology

[0002] Existing UAV landing gear generally consists of support legs and support plates installed at the lower ends of the support legs. The support legs and support plates are generally fixed by welding. Currently, equipment for welding support legs and support plates is disclosed in patent announcement number CN221363538U, which is a welding fixture for the top frame of a UAV truss. It includes a base frame with multiple supports on the base frame. The distribution of the supports on the base frame corresponds to the distribution of titanium alloy tubes on the top frame. The supports have arc-shaped grooves, and each arc-shaped groove is connected to a U-shaped pressure plate for constraining the titanium alloy tube. The base frame is also provided with multiple positioning seats, which are distributed along the axial direction of the arc-shaped grooves and are used to abut against the ends of the titanium alloy tubes. This can ensure the positioning of each titanium alloy tube in the top frame, reduce welding deformation, ensure the accuracy of the top frame, and realize the purpose of reducing the weight of the UAV truss by replacing bolt or riveting connections with welding connections.

[0003] Without changing the drone's power system, the primary consideration for increasing flight speed and range is reducing the weight of the airframe. To reduce the weight of the landing gear and minimize the use of bolts, welding is often used, similar to the existing technologies mentioned above. Hollow support plates are generally used. However, during welding, the support plates and support legs need to be clamped and fixed to ensure that the landing gear components do not shift during welding. If the hollow support plate is clamped from both ends, it is prone to deformation due to high temperatures during welding. The clamping method mentioned above requires repeated disassembly and reassembly of multiple clamping components, which is cumbersome and not conducive to batch production. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a welding device for unmanned aerial vehicle (UAV) landing gear. This device provides stable clamping during welding, prevents deformation of the hollow support plate, and is convenient for batch production.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding device for unmanned aerial vehicle (UAV) landing gear, comprising a welding table and a landing gear, wherein the landing gear includes support legs and a support plate, an mounting plate is fixedly installed on the welding table, a sliding groove is formed on the inner side of the welding table, and placement plates are provided on both sides of the mounting plate and slidably connected to the sliding groove, two sets of inclined grooves are formed through the upper end of the placement plate, and clamping rollers are arranged through the inclined grooves, the clamping rollers are slidably and rotatably connected to the inclined grooves, the clamping rollers are located on both sides of the support plate, and a limit frame is slidably provided at the lower end of the placement plate, the clamping rollers slidingly and rotatably connected to the limit frame. The two limiting frames are connected by a power component for controlling the movement of the clamping rollers. A limiting component is provided between the clamping rollers and the placement plate to control the rotation directions of the corresponding two clamping rollers to be opposite. A sliding opening is provided through the upper end of the mounting plate. Two support seats are provided on the mounting plate. A clamping component for clamping the support legs is provided on one side of the support seat. A pusher for controlling the movement of the two placement plates is provided through one of the support seats. One of the clamping components is also used to position the support seat and the pusher. A connecting member is provided between the two support seats.

[0006] Preferably, the power assembly includes a first gear rotatably connected to the lower end of the placement plate, with first serrated plates meshing with both sides of the first gear and sliding with the placement plate, the two first serrated plates being fixedly connected to two limiting frames respectively, a first telescopic member being fixedly installed inside the welding table, a motor being fixedly installed at the end of the first telescopic member, the output end of the motor being fixedly connected to one of the first gears, and two second telescopic members being arranged between the two placement plates, the two ends of the second telescopic members being fixedly connected to two limiting frames respectively.

[0007] Preferably, the limiting component includes a connecting groove formed at the lower end of the placement plate, a rotating rod that slides and rotates within the connecting groove, a telescopic spring that is fixedly installed on the inner wall of the connecting groove, one end of the telescopic spring abutting against the rotating rod, pulleys that are fixedly installed at the lower ends of the rotating rod and the clamping roller, and a conveyor belt that is sleeved between the multiple pulleys.

[0008] Preferably, both the first telescopic member and the second telescopic member are composed of a sliding housing and a sliding block.

[0009] Preferably, the pushing member includes a second gear rotatably connected to the lower end of one of the support seats, and the second gear has two second serrated plates that are slidably connected to the support seats on both sides. The two second serrated plates are slidably connected to the two placement plates respectively.

[0010] Preferably, the connector includes a third gear rotatably mounted on a mounting plate, and both sides of the third gear are provided with third serrated plates that are slidably connected to the slide opening. The two third serrated plates pass through the slide opening and are fixedly connected to two support seats respectively.

[0011] Preferably, the clamping assembly includes a placement groove formed on the side of the support base, a clamping plate is provided on one side of the support base, a support spring is provided between the clamping plate and the placement groove, a limit opening is formed through one side of the clamping plate, and a bolt is slidably and rotatably provided in the limit opening.

[0012] Preferably, one of the support bases has a sliding rod at its upper end, and a U-shaped extrusion rod is fixedly provided at its lower end. The two ends of the U-shaped extrusion rod extrude the mounting plate and the third gear respectively, and anti-slip pads are fixedly provided at the two ends of the U-shaped extrusion rod respectively.

[0013] Preferably, the contact area between the clamping roller and the support plate is provided with an anti-slip compression pad.

[0014] Preferably, a limiting element is installed at one end of both the second gear and the third gear, and the limiting element consists of a limiting ring and a turntable.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This invention features clamping rollers that penetrate the inclined groove of a placement plate, with the clamping rollers located on both sides of a support plate. A limiting frame is slidably positioned at the lower end of the placement plate, and the clamping rollers slide in contact with the limiting frame. When clamping the support plate is required, the support plate is placed between the clamping rollers, and the movement of the two limiting frames is controlled, causing the clamping rollers to move and clamp the support plate. This invention can accommodate support plates of different widths. Throughout the clamping process, the cooperation of a telescopic spring, rotating rod, pulley, and conveyor belt ensures that the two clamping rollers at corresponding positions always rotate in the same direction. During welding, if the support plate is subjected to force, the clamping rollers on both sides exert opposite forces on the support plate, preventing displacement of the support plate.

[0017] 2. The present invention fixes a first telescopic component to the inside of the welding table, fixes a motor to the end of the first telescopic component, fixes the output end of the motor to one of the first gears, and sets two second telescopic components between the two placement plates. When one motor is working, the two ends of the second telescopic component are fixedly connected to two limit frames respectively. Through the cooperation of the second telescopic components, the two support plates can be clamped and fixed at the same time.

[0018] 3. The present invention rotates and installs a third gear on the mounting plate. On both sides of the third gear, there are third serrated plates that are slidably connected to the slide. The two third serrated plates pass through the slide and are fixedly connected to two support seats respectively. After the support leg is clamped on one side of the support seat, when one support leg is moved to the welding position of the support plate, the other support leg is also moved to the welding position of the support plate at the same time, which brings convenience to the welding work. Attached Figure Description

[0019] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention from a bottom view;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure connecting the two placement plates of the present invention;

[0022] Figure 4 for Figure 3 A magnified structural diagram of A in the middle;

[0023] Figure 5 This is a bottom-view perspective view of the mounting plate of the present invention.

[0024] Figure 6 This is a three-dimensional cross-sectional structural diagram of the support base of the present invention;

[0025] Figure 7 This is a three-dimensional structural diagram of the limiting component of the present invention;

[0026] Figure 8 This is a schematic diagram of the planar structure of the limiting component of the present invention.

[0027] In the diagram: 1. Welding table; 2. Mounting plate; 3. Placement plate; 4. Slide groove; 5. Inclined groove; 6. Clamping roller; 7. Slide opening; 8. Support base; 9. Conveyor belt; 10. Pulley; 11. Motor; 12. First telescopic component; 13. First gear; 14. First serrated plate; 15. Third gear; 16. Third serrated plate; 17. Connecting groove; 18. Bolt; 19. Support leg; 20. Insert rod; 21. Clamping plate; 22. Second serrated plate; 23. Second telescopic component; 24. Telescopic spring; 25. Rotating rod; 26. Limiting frame; 27. Limiting opening; 28. U-shaped extrusion rod; 29. ​​Placement groove; 30. Support spring; 31. Second gear; 32. Support plate; 33. Limiting ring; 34. Turntable. Detailed Implementation

[0028] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0029] Example 1:

[0030] Please see Figures 1-7A welding device for unmanned aerial vehicle (UAV) landing gear includes a welding table 1 and a landing gear. The landing gear includes support legs 19 and a support plate 32 (the support plate 32 is hollow to reduce weight). A mounting plate 2 is fixedly installed on the welding table 1. A groove 4 is formed on the inner side of the welding table 1. Placement plates 3 are provided on both sides of the mounting plate 2 and are slidably connected to the groove 4. Two sets of inclined grooves 5 are formed through the upper end of the placement plate 3. Clamping rollers 6 are inserted through the inclined grooves 5 and are slidably and rotatably connected to the inclined grooves 5. The clamping rollers 6 are located on both sides of the support plate 32. On the side, anti-slip compression pads are provided at the contact points between the clamping roller 6 and the support plate 32. These anti-slip compression pads directly contact the side of the support plate 32, using friction to limit movement and prevent over-clamping and deformation. A limit frame 26 is slidably provided at the lower end of the placement plate 3, and the clamping roller 6 slides in contact with the limit frame 26. A power assembly is provided between the two limit frames 26 to control the movement of the clamping roller 6. The power assembly includes a first gear 13 rotatably connected to the lower end of the placement plate 3, with sliding contact pads on both sides of the first gear 13. The first serrated plate 14 is fixedly connected to the two limiting frames 26 respectively. The welding table 1 is fixedly installed with the first telescopic member 12. The end of the first telescopic member 12 is fixedly installed with the motor 11. The output end of the motor 11 is fixedly connected to one of the first gears 13. Two second telescopic members 23 are arranged between the two placement plates 3. The two ends of the second telescopic member 23 are fixedly connected to the two limiting frames 26 respectively. The first telescopic member 12 and the second telescopic member 23 are both composed of a sliding shell and a sliding block (this structure is existing technology and will not be described in detail here. It allows the position of the two placement plates 3 to be moved to adapt to the welding of support legs 19 of different lengths. The setting of the second telescopic member 23 allows one motor 11 to work and clamp and fix the two support plates 32 at the same time). When the support plate 32 needs to be clamped, the support plate 32 is placed between the clamping rollers 6. The motor 11 is started to control the movement of the two limiting frames 26, so that the clamping rollers 6 move to clamp the support plate 32. It can adapt to the clamping of support plates 32 of different widths.

[0031] A limiting component is provided between the clamping roller 6 and the placement plate 3 to control the rotation directions of the corresponding two clamping rollers 6 to be opposite. The limiting component includes a connecting groove 17 opened at the lower end of the placement plate 3. A rotating rod 25 is slidably and rotatably arranged in the connecting groove 17. A telescopic spring 24 is fixedly installed on the inner wall of the connecting groove 17. One end of the telescopic spring 24 abuts against the rotating rod 25. A pulley 10 is fixedly installed at the lower end of both the rotating rod 25 and the clamping roller 6. A conveyor belt 9 is sleeved between the multiple pulleys 10. During the entire clamping process, through the cooperation of the telescopic spring 24, the rotating rod 25, the pulleys 10 and the conveyor belt 9, the two clamping rollers 6 at the corresponding positions can always be in the same rotation direction. During welding, if the support plate 32 is subjected to force, the clamping rollers 6 on both sides give the support plate 32 opposite forces to prevent the support plate 32 from being displaced.

[0032] The upper end of the mounting plate 2 has a through-hole 7. The mounting plate 2 is provided with two support seats 8. One side of the support seat 8 is provided with a clamping component for clamping the support leg 19. One of the support seats 8 is provided with a pusher for controlling the movement of the two placement plates 3. One of the clamping components is also used to position the support seat 8 and the pusher. A connecting member is provided between the two support seats 8.

[0033] As a further technical solution of the present invention, the clamping assembly includes a placement groove 29 formed on the side of the support base 8, a clamping plate 21 (with scales on the clamping plate 21) is provided on one side of the support base 8, a support spring 30 is provided between the clamping plate 21 and the placement groove 29, a limiting port 27 is formed through one side of the clamping plate 21, and a bolt 18 is slidably and rotatably provided in the limiting port 27 for clamping the support leg 19 during welding. Since the support leg 19 is relatively thin, special clamps are generally not required. The clamping plate 21 can move up and down and back and forth in the placement groove 29 for clamping support legs 19 of different heights and widths.

[0034] As a further technical solution of the present invention, the pusher includes a second gear 31 rotatably connected to the lower end of one of the support seats 8. The second gear 31 has two second serrated plates 22 that are slidably connected to the support seats 8 on both sides. The two second serrated plates are slidably connected to the two placement plates 3 respectively. According to the scale provided on the clamping plate 21, the middle part of the support leg 19 is clamped on the clamping plate 21. According to the length of the support leg 19, if one of the placement plates 3 is moved, the other placement plate 3 will also be moved to the same position in the opposite direction, which brings convenience to the welding work.

[0035] As a further technical solution of the present invention, the connector includes a third gear 15 rotatably mounted on the mounting plate 2. Both sides of the third gear 15 are provided with third serrated plates 16 that are slidably connected to the slide 7. The two third serrated plates 16 pass through the slide 7 and are fixedly connected to the two support seats 8 respectively. The welding table 1 is provided with a scale. When the clamping roller 6 clamps the support plate 32, according to the scale of the welding table 1, the middle position of the support plate 32 is clamped at the first gear 13. After clamping the support leg 19, when one of the support legs 19 is moved to the welding position of the support plate 32, the other support leg 19 is also moved to another welding position of the support plate 32, which brings convenience to the welding work.

[0036] As a further technical solution of the present invention, a rod 20 is slidably provided on the upper end of one of the support bases 8, and a U-shaped extrusion rod 28 is fixedly provided on the lower end of the rod 20. The two ends of the U-shaped extrusion rod 28 extrude the mounting plate 2 and the third gear 15 respectively. Anti-slip pads are fixedly provided on the two ends of the U-shaped extrusion rod 28 respectively. After the support leg 19 and the support plate 32 are clamped and the position is adjusted, the position of the support leg 19 and the support plate 32 can be stably positioned by rotating the bolt 18.

[0037] Example 2:

[0038] Please see Figure 8 Unlike Embodiment 1, both the second gear 31 and the third gear 15 are equipped with limiting components at one end. The limiting components consist of a limiting ring 33 and a turntable 34 (the outer side of the turntable 34 is an elastic ring). The two turntables 34 are respectively connected to the second gear 31 and the third gear 15. The limiting ring 33 is fixedly connected to the support base 8 and the mounting plate 2 respectively, so that the second gear 31 and the third gear 15 do not rotate when there is no external force pushing them.

[0039] Working principle:

[0040] During installation, according to the scale of the welding table 1, the middle position of the support plate 32 is placed at the first gear 13. Then, the motor 11 is started to drive the first gear 13 connected to it to rotate. The first gear 13 drives the first serrated plate 14 to move. The first serrated plate 14 drives the limiting frame 26 to move. The limiting frame 26 pushes the clamping roller 6 to slide in the inclined groove 5 (during the movement of the clamping roller 6, it will pull the rotating rod 25 to slide in the connecting groove 17, and the telescopic spring 24 will be continuously squeezed to control the conveyor belt 9 to always be in a taut state, so that the two clamping rollers 6 corresponding to the position are always in the same rotation direction. During welding, if the support plate 32 is subjected to force, the clamping rollers 6 on both sides will give the support plate 32 opposite force to prevent the support plate 32 from being displaced). The clamping roller 6 clamps the support plate 32.

[0041] Then, the middle position of the support leg 19 is placed on the clamping plate 21, and one of the support seats 8 is pushed. When the support seat 8 moves, through the cooperation of the third gear 15 and the third sawtooth plate 16, one of the support legs 19 is moved to the welding position of the support plate 32. At the same time, the other support leg 19 is also moved to another welding position of the support plate 32, which brings convenience to the welding work.

[0042] Then, by pulling one of the placement plates 3, and through the cooperation of the second gear 31 and the second sawtooth plate 22, one of the placement plates 3 is moved, and the other placement plate 3 will also be moved to the same position in the opposite direction, which facilitates the welding work.

[0043] Then press the support leg 19 so that its lower end contacts the upper end of the support plate 32, and then press the insertion rod 20 so that the two ends of the U-shaped extrusion rod 28 respectively extrude the mounting plate 2 and the third gear 15. Rotate the bolt 18 to clamp the support plate 32. At the same time, the bolt 18 is also connected to the insertion rod 20 to limit the insertion rod 20. This can stably position the support leg 19 and the support plate 32. Welding can then be carried out. Since it is a batch operation, after the first welding is completed, it is only necessary to remove the landing gear and then continue to place the support leg 19 and the support plate 32. No other adjustments are needed. Only when the size of the processed parts is changed later will the position of the support base 8 and the placement plate 3 need to be adjusted.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will readily make equivalent substitutions for its features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0045] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the claims of the present invention.

Claims

1. A welding device for unmanned aerial vehicle (UAV) landing gear, comprising a welding table (1) and a landing gear, wherein the landing gear includes support legs (19) and support plates (32), characterized in that, A mounting plate (2) is fixedly installed on the welding table (1). A sliding groove (4) is provided on the inner side of the welding table (1). Placement plates (3) that are slidably connected to the sliding groove (4) are provided on both sides of the mounting plate (2). Two sets of inclined grooves (5) are provided through the upper end of the placement plate (3). A clamping roller (6) is provided through the inclined groove (5). The clamping roller (6) is slidably and rotatably connected to the inclined groove (5). The clamping roller (6) is located on both sides of the support plate (32). A limit frame (26) is slidably provided at the lower end of the placement plate (3). The clamping roller (6) is in slidable contact with the limit frame (26). A power supply is provided between the two limit frames (26). A component is provided to control the movement of the clamping roller (6). A limit component is provided between the clamping roller (6) and the placement plate (3) to control the rotation direction of the two corresponding clamping rollers (6) to be opposite. A sliding opening (7) is provided through the upper end of the mounting plate (2). Two support seats (8) are provided on the mounting plate (2). A clamping component for clamping the support leg (19) is provided on one side of the support seat (8). A pusher for controlling the movement of the two placement plates (3) is provided through one of the support seats (8). One of the clamping components is also used to position the support seat (8) and the pusher. A connecting member is provided between the two support seats (8). The power assembly includes a first gear (13) rotatably connected to the lower end of the placement plate (3). Both sides of the first gear (13) are meshed with first serrated plates (14) that slide with the placement plate (3). The two first serrated plates (14) are fixedly connected to two limiting frames (26) respectively. A first telescopic member (12) is fixedly installed on the inner side of the welding table (1). A motor (11) is fixedly installed at the end of the first telescopic member (12). The output end of the motor (11) is fixedly connected to one of the first gears (13). Two second telescopic members (23) are provided between the two placement plates (3). The two ends of the second telescopic members (23) are fixedly connected to the two limiting frames (26) respectively. The limiting component includes a connecting groove (17) opened at the lower end of the placement plate (3), a rotating rod (25) is slidably and rotatably arranged in the connecting groove (17), a telescopic spring (24) is fixedly installed on the inner wall of the connecting groove (17), one end of the telescopic spring (24) abuts against the rotating rod (25), and pulleys (10) are fixedly installed at the lower ends of the rotating rod (25) and the clamping roller (6), and a conveyor belt (9) is sleeved between the multiple pulleys (10). The pusher includes a second gear (31) rotatably connected to the lower end of one of the support seats (8). The second gear (31) has two second serrated plates (22) meshing with each other and slidably connected to the support seats (8). The two second serrated plates are slidably connected to the two placement plates (3) respectively. The connector includes a third gear (15) rotatably mounted on the mounting plate (2). Both sides of the third gear (15) are fitted with third sawtooth plates (16) that are slidably connected to the slide (7). The two third sawtooth plates (16) pass through the slide (7) and are fixedly connected to the two support seats (8) respectively. The clamping assembly includes a placement groove (29) opened on the side of the support base (8), a clamping plate (21) is provided on one side of the support base (8), a support spring (30) is provided between the clamping plate (21) and the placement groove (29), a limit opening (27) is opened through one side of the clamping plate (21), and a bolt (18) is provided in the limit opening (27) for sliding and rotation. One of the support bases (8) has a sliding rod (20) at its upper end, and a U-shaped extrusion rod (28) is fixedly installed at the lower end of the rod (20). The two ends of the U-shaped extrusion rod (28) extrude the mounting plate (2) and the third gear (15) respectively. The two ends of the U-shaped extrusion rod (28) are fixedly installed with anti-slip pads. The clamping plate (21) moves up and down and back and forth in the placement groove (29) to clamp the support legs (19) of different heights and widths. The rotating bolt (18) is used to stabilize the position of the support legs (19) and the support plate (32).

2. The unmanned aerial vehicle landing gear welding equipment according to claim 1, characterized in that, Both the first telescopic component (12) and the second telescopic component (23) are composed of a sliding shell and a sliding block.

3. The unmanned aerial vehicle landing gear welding equipment according to claim 2, characterized in that, The contact area between the clamping roller (6) and the support plate (32) is provided with anti-slip compression pads.

4. The unmanned aerial vehicle landing gear welding equipment according to claim 3, characterized in that, Both the second gear (31) and the third gear (15) are equipped with limiting components at one end. The limiting components consist of a limiting ring (33) and a turntable (34).

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