Unmanned aerial vehicle undercarriage welding equipment

Abstract

The invention relates to the technical field of welding, and discloses unmanned aerial vehicle undercarriage welding equipment which comprises a welding table and an undercarriage, the undercarriage comprises supporting legs and a supporting plate, a mounting plate is fixedly mounted on the welding table, a sliding groove is formed in the inner side of the welding table, and a clamping roller is arranged in an inclined groove of a placing plate in a penetrating mode; the clamping rollers are located on the two sides of the supporting plate, the limiting frames are arranged at the lower end of the containing plate in a sliding mode, the clamping rollers make sliding contact with the limiting frames, when the supporting plate needs to be clamped, the supporting plate is placed between the clamping rollers, the two limiting frames are controlled to move, the clamping rollers move to clamp the supporting plate, and clamping of the supporting plates with different widths can be adapted; in the whole clamping process, through cooperation of a telescopic spring, a rotating rod, a belt wheel and a conveying belt, the two clamping rollers corresponding in position can be always in the same rotating direction, and in the welding process, if a supporting plate is stressed, the clamping rollers on the two sides apply opposite force to the supporting plate, and displacement of the supporting plate is avoided.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, in particular to a welding device for a landing gear of a UAV. Background Art

[0002] The existing UAV landing gear is generally composed of support legs and support plates installed at the lower ends of the support legs. The support legs and the support plates are generally fixed by welding. The equipment currently used for welding support legs and support plates is a welding tool for the top frame of a UAV truss disclosed in the authorization announcement number CN221363538U, which includes a base frame, a plurality of supports are arranged on the base frame, and the distribution positions of the supports on the base frame correspond to the same position distribution of the titanium alloy tubes on the top frame; an arc groove is provided on the support, and each arc groove is connected to a U-shaped pressing plate for constraining the titanium alloy tube; a plurality of positioning seats are also provided on the base frame, and the positioning seats are distributed in the axial direction of the arc groove and are used to abut against the end of the titanium alloy tube, which can ensure the positioning of each titanium alloy pipe fitting in the top frame, reduce welding deformation, ensure the accuracy of the top frame, and replace bolt connection or rivet connection with welding connection, so as to achieve the purpose of reducing the weight of the UAV truss.

[0003] When the UAV power system remains unchanged, the primary consideration for improving the flight speed and flight mileage is to reduce the weight of the fuselage. In order to reduce the weight of the landing gear, the use of bolts is minimized and most of them are installed by welding, similar to the above-mentioned existing technology. At the same time, 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 move during welding. If the hollow support plates are clamped from both ends, they are prone to extrusion deformation due to high temperature during welding. Clamping using the method in the above-mentioned existing technology requires repeated disassembly and assembly of multiple clamps, which is more troublesome and not conducive to batch work. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a UAV landing gear welding device, which has a stable clamping during welding and is not likely to cause the hollow support plate to deform. It is easy to operate and facilitates batch work.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a UAV landing gear welding device, comprising a welding table and a landing gear, the landing gear comprising a support leg and a support plate, a mounting plate fixedly mounted on the welding table, a slide groove being provided on the inner side of the welding table, placement plates slidably connected to the slide groove being provided on both sides of the mounting plate, two sets of inclined grooves being provided through the upper end of the placement plate, clamping rollers being provided through the inclined grooves, the clamping rollers being slidably and rotatably connected to the inclined grooves, the clamping rollers being located on both sides of the support plate, a limit frame being slidably provided at the lower end of the placement plate, the clamping rollers slidingly connected to the limit frame Dynamic contact, a power component is provided between the two limit frames for controlling the movement of the clamping roller, a limit component is provided between the clamping roller and the placement plate for controlling the corresponding two clamping rollers to rotate in opposite directions, 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 pushing member 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 pushing member, and 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, first serrated plates that slide with the placement plate are meshed on both sides of the first gear, and the two first serrated plates are fixedly connected to the two limit frames respectively. A first telescopic member is fixedly installed on the inner side of the welding table, and a motor is fixedly installed on the end of the first telescopic member. The output end of the motor is fixedly connected to one of the first gears, and two second telescopic members are provided between the two placement plates, and the two ends of the second telescopic member are fixedly connected to the two limit frames respectively.

[0007] Preferably, the limiting assembly includes a connecting groove opened at the lower end of the placing plate, a rotating rod is provided in the connecting groove for sliding and rotating, a telescopic spring is fixedly installed on the inner wall of the connecting groove, one end of the telescopic spring is against the rotating rod, and pulleys are fixedly installed at the lower ends of the rotating rod and the clamping roller, and a transmission belt is arranged between the multiple pulleys.

[0008] Preferably, the first telescopic member and the second telescopic member are both 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 second serrated plates slidably connected to the support seat are meshed on both sides of the second gear, and the two second serrated plates are slidably connected to the two placement plates respectively.

[0010] Preferably, the connecting member includes a third gear rotatably mounted on the mounting plate, and third serrated plates slidably connected to the sliding port are meshed on both sides of the third gear, and the two third serrated plates pass through the sliding port and are fixedly connected to the two support seats respectively.

[0011] Preferably, the clamping assembly includes a placement groove opened on the side of the support seat, a clamping plate is provided on one side of the support seat, a support spring is provided between the clamping plate and the placement groove, a limiting opening is opened through one side of the clamping plate, and a bolt is provided in the limiting opening for sliding and rotating.

[0012] Preferably, an insertion rod is slidably provided on the upper end of one of the support seats, a U-shaped extrusion rod is fixedly provided on the lower end of the insertion rod, the two ends of the U-shaped extrusion rod respectively squeeze the mounting plate and the third gear, and the two ends of the U-shaped extrusion rod are respectively fixedly provided with anti-slip pads.

[0013] Preferably, the contact parts between the clamping roller and the support plate are both provided with anti-slip compression pads.

[0014] Preferably, a limiting member is installed at one end of each of the second gear and the third gear, and the limiting member consists of a limiting ring and a rotating disk.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets clamping rollers through the inclined groove of the placement plate. The clamping rollers are located on both sides of the support plate, and a limit frame is slidingly set at the lower end of the placement plate. The clamping rollers are in sliding contact with the limit frame. When the support plate needs to be clamped, the support plate is placed between the clamping rollers, and the two limit frames are controlled to move so that the clamping rollers move to clamp the support plate. It can adapt to the clamping of support plates of different widths. During the entire clamping process, the two clamping rollers in corresponding positions are always in the same rotation direction through the cooperation of the telescopic spring, the rotating rod, the pulley and the transmission belt. During welding, if the support plate is subjected to force, the clamping rollers on both sides give the support plate opposite forces to prevent the support plate from displacement.

[0016] 2. The present invention fixes a first telescopic member on the inner side of the welding table, fixes a motor on the end of the first telescopic member, and the output end of the motor is fixedly connected to one of the first gears. Two second telescopic members are set between the two placement plates, one motor is working, and the two ends of the second telescopic member are fixedly connected to the two limit frames respectively. Through the cooperation of the second telescopic member, the two support plates can be clamped and fixed at the same time.

[0017] 3. The present invention installs the third gear by rotation on the mounting plate, and third serrated plates slidably connected to the sliding mouth are meshed on both sides of the third gear. The two third serrated plates pass through the sliding mouth and are fixedly connected to the two support seats respectively. After clamping the support legs on one side of the support seat, when one of the support legs 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the overall three-dimensional structure of the present invention from a top view; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention when viewed from above; Figure 3 A schematic diagram of the three-dimensional structure of the connection between two placement plates of the present invention; Figure 4 for Figure 3 Schematic diagram of the enlarged structure of A; Figure 5 This is a bottom-up perspective structural diagram of the mounting plate of the present invention; Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the support seat of the present invention; Figure 7 Schematic diagram of the three-dimensional structure of the limiting component of the present invention; Figure 8 It is a schematic diagram of the planar structure of the limiting member of the present invention.

[0019] In the figure: 1. welding table; 2. mounting plate; 3. placement plate; 4. slide; 5. inclined groove; 6. clamping roller; 7. slide; 8. support seat; 9. transmission belt; 10. pulley; 11. motor; 12. first telescopic member; 13. first gear; 14. first serrated plate; 15. third gear; 16. third serrated plate; 17. connecting groove; 18. bolt; 19. support leg; 20. insertion rod; 21. clamping plate; 22. second serrated plate; 23. second telescopic member; 24. telescopic spring; 25. rotating rod; 26. limit frame; 27. limit mouth; 28. U-shaped extrusion rod; 29. ​​placement groove; 30. support spring; 31. second gear; 32. support plate; 33. limit ring; 34. turntable. DETAILED DESCRIPTION

[0020] The following embodiments of the present disclosure are further described in detail with reference to the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present disclosure, but are not intended to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.

[0021] Example 1: See also Figure 1-Figure 7A UAV landing gear welding device includes a welding platform 1 and a landing gear. The landing gear includes a support leg 19 and a support plate 32 (the support plate 32 is hollow to reduce weight). A mounting plate 2 is fixedly mounted on the welding platform 1. A slide groove 4 is provided on the inner side of the welding platform 1. A placement plate 3 is provided on both sides of the mounting plate 2 and is slidably connected to the slide groove 4. Two sets of inclined grooves 5 are provided on the upper end of the placement plate 3. A clamping roller 6 is provided in the inclined groove 5. The clamping roller 6 is connected to the inclined groove 5 in a sliding and rotatable manner. The clamping roller 6 is located on both sides of the support plate 32. On the other hand, the contact parts of the clamping roller 6 and the support plate 32 are provided with anti-slip extrusion pads, which directly contact the side of the support plate 32 through the anti-slip extrusion pads and limit the position by friction to avoid deformation caused by excessive clamping. A limit frame 26 is provided for sliding at the lower end of the placement plate 3. The clamping roller 6 is in sliding contact with the limit frame 26. A power component is provided between the two limit frames 26 for controlling the movement of the clamping roller 6. The power component 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 gears that slide with the placement plate 3. The first serrated plate 14 and the two first serrated plates 14 are respectively fixedly connected to the two limit frames 26. A first telescopic member 12 is fixedly installed on the inner side of the welding table 1. A motor 11 is fixedly installed on 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 member 23 are respectively fixedly connected to the two limit frames 26. 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 a prior art and is not described in detail here, so that the positions of the two placement plates 3 can be moved to adapt to the welding of support legs 19 of different lengths, and the setting of the second telescopic member 23 enables 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, and the motor 11 is started to control the movement of the two limit frames 26, so that the clamping rollers 6 move to clamp the support plate 32, which can adapt to the clamping of support plates 32 of different widths; A limit assembly is provided between the clamping roller 6 and the placing plate 3 for controlling the corresponding two clamping rollers 6 to rotate in opposite directions. The limit assembly includes a connecting groove 17 provided at the lower end of the placing plate 3, a rotating rod 25 is provided for sliding and rotating 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 is against the rotating rod 25, and a pulley 10 is fixedly installed on the lower end of the rotating rod 25 and the clamping roller 6. A transmission belt 9 is sleeved between the multiple pulleys 10. During the entire clamping process, the two clamping rollers 6 in corresponding positions are always in a state of having the same rotation direction through the cooperation of the telescopic spring 24, the rotating rod 25, the pulley 10 and the transmission belt 9. 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 displacement; A sliding opening 7 is provided through the upper end of the mounting plate 2, and two support seats 8 are provided on the mounting plate 2. A clamping assembly for clamping the support leg 19 is provided on one side of the support seat 8. A pushing member for controlling the movement of the two placement plates 3 is provided through one of the support seats 8, and one of the clamping members is also used to position the support seat 8 and the pushing member. A connecting member is provided between the two support seats 8.

[0022] As a further technical solution of the present invention, the clamping assembly includes a placement groove 29 opened on the side of the support seat 8, a clamping plate 21 (a scale is set on the clamping plate 21) is provided on one side of the support seat 8, and a support spring 30 is provided between the clamping plate 21 and the placement groove 29. A limiting opening 27 is opened through one side of the clamping plate 21, and a bolt 18 is provided in the limiting opening 27 for sliding and rotating. During welding, it is used to clamp the support leg 19. Since the support leg 19 is relatively thin, a special clamp is generally not required. The clamping plate 21 can move up and down and forward and backward in the placement groove 29 to clamp support legs 19 of different heights and widths.

[0023] As a further technical solution of the present invention, the pushing member includes a second gear 31 rotatably connected to the lower end of one of the support seats 8, and second serrated plates 22 slidably connected to the support seat 8 are meshed on both sides of the second gear 31. 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, 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 brings convenience to the welding work.

[0024] As a further technical solution of the present invention, the connecting part includes a third gear 15 rotatably mounted on the mounting plate 2, and third serrated plates 16 slidably connected to the slide 7 are meshed on both sides of the third gear 15. The two third serrated plates 16 pass through the slide 7 and are fixedly connected to the two support seats 8 respectively. A scale is provided on the welding table 1. When the clamping roller 6 clamps the support plate 32, the middle position of the support plate 32 is clamped at the first gear 13 according to the scale of the welding table 1. After clamping the support legs 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 at the same time, which facilitates the welding work.

[0025] As a further technical solution of the present invention, an insertion rod 20 is slidably provided on the upper end of one of the support seats 8, and a U-shaped extrusion rod 28 is fixedly provided on the lower end of the insertion rod 20. The two ends of the U-shaped extrusion rod 28 respectively squeeze the mounting plate 2 and the third gear 15, and the two ends of the U-shaped extrusion rod 28 are respectively fixedly provided with anti-slip pads. After the support legs 19 and the support plate 32 are clamped and the positions are adjusted, the bolt 18 is turned to firmly position the support legs 19 and the support plate 32. Example 2:

[0026] See also Figure 8 , different from Example 1, a limiting member is installed at one end of the second gear 31 and the third gear 15. The limiting member consists of a limiting ring 33 and a rotating disk 34 (the outer side of the rotating disk 34 is an elastic ring). The two rotating disks 34 are respectively connected to the second gear 31 and the third gear 15, and the limiting ring 33 is fixedly connected to the support base 8 and the mounting plate 2, so that the second gear 31 and the third gear 15 do not rotate without external force.

[0027] Working principle: During installation, the middle position of the support plate 32 is placed on the first gear 13 according to the scale of the welding table 1, and then the motor 11 is started to drive the first gear 13 connected thereto to rotate, and the first gear 13 drives the first serrated plate 14 to move, and the first serrated plate 14 drives the limit frame 26 to move, and the limit frame 26 pushes the clamping roller 6 to slide in the inclined groove 5 (the clamping roller 6 will pull the rotating rod 25 to slide in the connecting groove 17 during the movement, and the telescopic spring 24 is continuously squeezed to control the conveyor belt 9 to always be in a taut state, so that the two clamping rollers 6 in the corresponding positions are always in a state of rotating in the same 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), and the clamping roller 6 clamps the support plate 32; Then, the middle position of the support leg 19 is placed on the clamping plate 21, and one of the support bases 8 is pushed. When the support base 8 moves, through the cooperation of the third gear 15 and the third serrated 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. Then, one of the placement plates 3 is pulled, and through the cooperation of the second gear 31 and the second serrated plate 22, one of the placement plates 3 is moved, and the other placement plate 3 is also moved to the same position in the opposite direction, which brings convenience to the welding work; 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 squeeze the mounting plate 2 and the third gear 15 respectively, and turn 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, which can firmly position the position of the support leg 19 and the support plate 32, and then welding work can be carried out. Since it is a batch work, after the first welding is completed, you only need to remove the landing gear, and then continue to place the support leg 19 and the support plate 32. No adjustment is required at other positions. Only when the size of the processed parts is replaced later, it is necessary to adjust the position of the support seat 8 and the placement plate 3.

[0028] The above description is only 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 above embodiments, it is obvious to those skilled in the art that the features thereof can be replaced with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will readily devise other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the claims of the present invention.

Claims

1. A UAV landing gear welding device, comprising a welding table (1) and a landing gear, wherein the landing gear comprises a support leg (19) and a support plate (32), characterized in that: The welding table (1) is fixedly provided with a mounting plate (2), the inner side of the welding table (1) is provided with a slide groove (4), and both sides of the mounting plate (2) are provided with a placement plate (3) slidably connected to the slide groove (4), and the upper end of the placement plate (3) is provided with two groups of inclined grooves (5), and the inclined grooves (5) are provided with a clamping roller (6), and the clamping roller (6) is connected to the inclined groove (5) in a sliding and rotatable manner. The clamping roller (6) is located on both sides of the support plate (32), and a limit frame (26) is slidably provided at the lower end of the placement plate (3), and the clamping roller (6) is in sliding contact with the limit frame (26). A power supply is provided between the two limit frames (26). A component is provided for controlling the movement of the clamping roller (6), a limit component is provided between the clamping roller (6) and the placement plate (3), and is used to control the rotation directions of the corresponding two clamping rollers (6) to be opposite, a sliding opening (7) is provided through the upper end of the mounting plate (2), and two support seats (8) are provided on the mounting plate (2), and a clamping component for clamping the support leg (19) is provided on one side of the support seat (8), and a pushing member for controlling the movement of the two placement plates (3) is provided through one of the support seats (8), and one of the clamping components is also used to position the support seat (8) and the pushing member, and a connecting member is provided between the two support seats (8).

2. The UAV landing gear welding equipment according to claim 1, characterized in that: The power assembly includes a first gear (13) rotatably connected to the lower end of the placement plate (3), first serrated plates (14) are meshed on both sides of the first gear (13) and slide with the placement plate (3), and the two first serrated plates (14) are fixedly connected to two limit frames (26) respectively. A first telescopic member (12) is fixedly installed on the inner side of the welding table (1), and 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), and two second telescopic members (23) are provided between the two placement plates (3), and the two ends of the second telescopic member (23) are fixedly connected to the two limit frames (26) respectively.

3. The UAV landing gear welding equipment according to claim 2, characterized in that: The limiting assembly includes a connecting groove (17) provided at the lower end of the placement plate (3), a rotating rod (25) is provided in the connecting groove (17) for sliding and rotating, a telescopic spring (24) is fixedly installed on the inner wall of the connecting groove (17), one end of the telescopic spring (24) is in contact with 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 transmission belt (9) is sleeved between the plurality of pulleys (10).

4. The UAV landing gear welding equipment according to claim 3, characterized in that: The first telescopic member (12) and the second telescopic member (23) are both composed of a sliding shell and a sliding block.

5. The UAV landing gear welding equipment according to claim 4, characterized in that: The pusher comprises a second gear (31) rotatably connected to the lower end of one of the support seats (8), and second serrated plates (22) slidably connected to the support seat (8) are meshed on both sides of the second gear (31), and the two second serrated plates are slidably connected to the two placement plates (3) respectively.

6. The UAV landing gear welding equipment according to claim 5, characterized in that: The connecting member comprises a third gear (15) rotatably mounted on the mounting plate (2), and third serrated plates (16) slidably connected to the sliding opening (7) are meshedly provided on both sides of the third gear (15), and the two third serrated plates (16) pass through the sliding opening (7) and are respectively fixedly connected to the two support seats (8).

7. The UAV landing gear welding equipment according to claim 6, characterized in that: The clamping assembly includes a placement groove (29) provided on the side of the support seat (8), a clamping plate (21) is provided on one side of the support seat (8), a support spring (30) is provided between the clamping plate (21) and the placement groove (29), and a limiting opening (27) is provided through one side of the clamping plate (21), and a bolt (18) is provided in the limiting opening (27) for sliding and rotating.

8. The UAV landing gear welding equipment according to claim 7, characterized in that: An insertion rod (20) is slidably provided on the upper end of one of the support seats (8), a U-shaped extrusion rod (28) is fixedly provided on the lower end of the insertion rod (20), two ends of the U-shaped extrusion rod (28) respectively squeeze the mounting plate (2) and the third gear (15), and two ends of the U-shaped extrusion rod (28) are respectively fixedly provided with anti-slip pads.

9. The UAV landing gear welding equipment according to claim 8, characterized in that: The contact areas between the clamping roller (6) and the support plate (32) are both provided with anti-slip extrusion pads.

10. The UAV landing gear welding equipment according to claim 9, characterized in that: A limiting member is installed at one end of each of the second gear (31) and the third gear (15), and the limiting member consists of a limiting ring (33) and a rotating disk (34).

Images