Efficient steel pipe welding auxiliary device for unmanned aerial vehicle manufacturing

Abstract

The invention discloses an efficient steel pipe welding auxiliary device for unmanned aerial vehicle manufacturing, which comprises a fixed table and two groups of stable clamping mechanisms arranged on the fixed table, the two groups of stable clamping mechanisms are symmetrically arranged, and the two groups of stable clamping mechanisms are respectively used for clamping two to-be-welded steel pipes; the stable clamping mechanism comprises an end centering clamping assembly, a synchronous linkage clamping assembly and a moving assembly, the end centering clamping assembly is used for clamping the non-welding end of the steel pipe, and the synchronous linkage clamping assembly is used for clamping the welding end of the steel pipe. The moving assembly is used for adjusting the position of the end centering and clamping assembly. The invention relates to the technical field of unmanned aerial vehicle manufacturing equipment, and particularly provides an efficient steel pipe welding auxiliary device for unmanned aerial vehicle manufacturing. The efficient steel pipe welding auxiliary device is accurate in positioning, stable in clamping, convenient and fast to operate and high in adaptability.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) manufacturing equipment technology, specifically to a high-efficiency welding auxiliary device for steel pipes used in UAV manufacturing. Background Technology

[0002] In the manufacturing process of unmanned aerial vehicles (UAVs), steel pipes are important structural components, and their welding quality directly affects the overall structural strength, flight stability, and service life of the UAV. During steel pipe welding, the two steel pipes to be welded must first be precisely positioned and stably clamped to ensure that the welding ends of the two pipes are coaxially aligned, avoiding problems such as misalignment or shaking during welding, thus guaranteeing the strength and sealing of the weld joint.

[0003] In existing technologies, auxiliary clamping devices for steel pipe welding mostly adopt simple clamping structures, which have the following shortcomings: First, the clamping and positioning accuracy is low, making it difficult to achieve precise coaxial centering of two steel pipes, resulting in misalignment and uneven gaps at the weld joint, affecting welding quality; Second, the clamping stability is poor, and the steel pipe is prone to radial or axial displacement during welding, especially in high-temperature welding environments, where thermal deformation further exacerbates the displacement risk and reduces welding accuracy; Third, the operation is cumbersome, requiring manual adjustment of the position and clamping force of the clamps at both ends, making synchronous linkage clamping impossible, and inconvenient to adjust when adapting to different specifications of steel pipes, affecting welding efficiency; Fourth, there is a lack of targeted clamping protection for the welded end of the steel pipe, which can easily lead to surface damage, and uneven distribution of clamping force may cause deformation of the steel pipe. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a high-efficiency welding auxiliary device for steel pipes used in the manufacture of unmanned aerial vehicles, which features precise positioning, stable clamping, convenient operation, and strong adaptability.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides an efficient welding auxiliary device for steel pipes used in the manufacture of unmanned aerial vehicles, comprising a fixed platform and a stabilizing clamping mechanism disposed on the fixed platform. Two sets of stabilizing clamping mechanisms are symmetrically arranged, and the two sets of stabilizing clamping mechanisms are respectively used to clamp two steel pipes to be welded. The stabilizing clamping mechanism includes an end centering clamping component, a synchronous linkage clamping component, and a moving component. The end centering clamping component is used to clamp the non-welded end of the steel pipe, the synchronous linkage clamping component is used to clamp the welded end of the steel pipe, and the moving component is used to adjust the position of the end centering clamping component.

[0006] Preferably, the end centering clamping assembly includes a support plate, a horizontal movement drive unit, a synchronous centering hollow disc, and a centering clamping unit. The support plate is disposed on the movable part of the moving assembly, the horizontal movement drive unit is disposed on the support plate, the synchronous centering hollow disc is disposed on the movable part of the horizontal movement drive unit and is driven by the horizontal movement drive unit to move along the length direction of the steel pipe, the support plate is provided with an L-shaped fixing frame, the centering clamping unit is disposed on the L-shaped fixing frame and cooperates with the synchronous centering hollow disc, and the centering clamping unit is arranged in a circular array of three groups.

[0007] Preferably, the centering clamping unit includes a U-shaped bracket, rollers, and V-shaped clamps. The L-shaped fixing frame is provided with a bracket seat. The U-shaped bracket is rotatably mounted on the bracket seat via a bracket shaft. A first torsion spring is sleeved on the bracket shaft. The two ends of the first torsion spring are respectively fixed to the bracket seat and the bracket shaft. The two ends of the U-shaped bracket are respectively provided with wheel seats and clamping block seats. The rollers are rotatably mounted on wheel seats via wheel shafts. The side of the synchronous centering hollow disc near the rollers is a conical surface. The rollers roll on the conical surface. The V-shaped clamps are rotatably mounted on clamping block seats via clamping block shafts. A second torsion spring is sleeved on the clamping block shaft. The two ends of the second torsion spring are respectively fixed to the clamping block seats and the clamping block shaft.

[0008] Preferably, the synchronous linkage clamping assembly includes a support base, a rotating cylinder, and a linkage clamping unit. The support base is mounted on a fixed platform and located between two sets of end centering clamping assemblies. The rotating cylinder is rotatably mounted on the support base and is coaxially arranged with the synchronous centering hollow disc. The linkage clamping unit is mounted on the support base, and three sets of the linkage clamping unit are arranged in a circular array.

[0009] Preferably, the linkage clamping unit includes a gear column, a rack, and a V-shaped clamping plate. The support base is provided with an ear plate, the gear column is rotatably mounted on the ear plate, the support base is provided with a guide groove, the rack is slidably mounted in the guide groove and meshes with the gear column, the V-shaped clamping plate is located at the end of the rack, and a toothed ring is sleeved on the rotating cylinder. The toothed ring meshes with the gear column, and the two sets of toothed rings in the two sets of synchronous linkage clamping assemblies are driven to rotate synchronously by a rotation drive unit.

[0010] Preferably, the rotary drive unit includes a rotating shaft, a drive gear, a first pulley, a second pulley, a transmission belt, and a first motor. The rotating shaft is rotatably disposed between two sets of support seats. There are two sets of drive gears, which are respectively disposed at both ends of the rotating shaft and respectively mesh with two sets of gear rings. The first pulley is sleeved on the rotating shaft. The first motor is disposed on a fixed platform. The second pulley is sleeved on the output shaft of the first motor. The transmission belt is sleeved on the first pulley and the second pulley.

[0011] Preferably, the horizontal movement drive unit includes a guide rod, a movable plate, and a hydraulic cylinder. The guide rod slides through the L-shaped fixed frame. The synchronous centering hollow disc and the movable plate are respectively disposed at both ends of the guide rod. The hydraulic cylinder is disposed on the movable plate, and the output end of the hydraulic cylinder is fixed on the support plate.

[0012] Preferably, the moving component includes a lead screw, a moving plate, and a second motor. The support plate is disposed on the moving plate, the lead screw is rotatably disposed on a fixed platform, the second motor is disposed on the fixed platform and its output shaft is connected to one end of the lead screw, the bottom of the moving plate is provided with a slider and a nut sleeve, the nut sleeve is threaded onto the lead screw, the fixed platform is provided with a slide rail, and the slider is slidably disposed on the slide rail.

[0013] Preferably, the support plate is provided with an inner supporting centering cone, and the synchronous centering hollow disk is sleeved on the outside of the inner supporting centering cone, and the inner supporting centering cone and the synchronous centering hollow disk are coaxially arranged.

[0014] More preferably, the conical surface is provided with a groove, and the roller is rolled within the groove.

[0015] More preferably, the V-shaped clamping block is provided with a first rubber anti-slip pad.

[0016] More preferably, the V-shaped clamp is provided with a second rubber anti-slip pad.

[0017] The beneficial effects achieved by the present invention using the above structure are as follows: Precise positioning and high welding quality: This invention achieves dual centering and clamping of the steel pipe through the cooperation of an end-centering clamping assembly and a synchronous linkage clamping assembly. In the end-centering clamping assembly, three sets of annular array centering clamping units are synchronously clamped in a centripetal manner under the drive of a synchronous centering hollow disc. Combined with the guiding effect of the inner support centering cone, precise centering of the non-welded end of the steel pipe can be quickly achieved. In the synchronous linkage clamping assembly, three sets of linkage clamping units achieve synchronous centripetal clamping through the transmission of a gear ring, gear column, and rack, ensuring coaxial positioning of the welded end of the steel pipe. Furthermore, the two sets of synchronous linkage clamping assemblies are driven synchronously by a rotary drive unit, ensuring precise alignment of the welded ends of the two steel pipes to be welded. This effectively avoids problems such as welding misalignment and uneven gaps, significantly improving welding quality.

[0018] Stable clamping and high reliability: In the end centering clamping assembly, the first torsion spring provides a continuous restoring force to the U-shaped bracket, ensuring that the roller always fits against the conical surface of the synchronous centering hollow disc, thus ensuring stable clamping of the steel pipe by the V-shaped clamping block; the second torsion spring allows the V-shaped clamping block to better fit against the surface of the steel pipe, ensuring uniform distribution of clamping force; the synchronous linkage clamping assembly achieves rigid clamping through gear transmission, with stable clamping force and is not easy to loosen; at the same time, the first rubber anti-slip pad on the V-shaped clamping block and the second rubber anti-slip pad on the V-shaped clamping plate not only enhance the clamping friction but also avoid damage to the surface of the steel pipe, further improving clamping stability and reliability, and effectively preventing radial and axial displacement of the steel pipe during welding.

[0019] Easy to operate and highly efficient in welding: The moving component is driven by a second motor to rotate the lead screw, which in turn drives the moving plate to slide along the slide rail. This allows for quick adjustment of the position of the end centering clamping component, adapting to the welding needs of steel pipes of different lengths. The horizontal moving drive unit is driven by a hydraulic cylinder to move the synchronous centering hollow disc, enabling the centering clamping unit to open and close quickly, facilitating the clamping and removal of steel pipes. The rotary drive unit, through the first motor, belt drive, and gear drive, drives the two sets of synchronously linked clamping components to move synchronously, eliminating the need for separate manual adjustments, simplifying the operation process, and significantly improving welding efficiency.

[0020] Highly adaptable and versatile: In the end centering clamping assembly, the V-shaped clamping block can clamp steel pipes of different diameters, and the conical surface design of the synchronous centering hollow disc allows for flexible adjustment of the clamping range of the centering clamping unit; In the synchronous linkage clamping assembly, the sliding stroke of the rack along the guide groove can meet the clamping requirements of steel pipes of different diameters, and it can be adapted to the welding of various specifications of steel pipes without changing the clamps, reducing equipment investment costs and improving the versatility of the equipment. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of an embodiment of the present invention; Figure 2 This is a front view of an embodiment of the present invention; Figure 3 This is a left view of an embodiment of the present invention; Figure 4 This is a top view of an embodiment of the present invention; Figure 5 for Figure 3 A sectional view along section AA; Figure 6 for Figure 5 A sectional view along section BB. Figure 7 for Figure 5 A sectional view along section CC; Figure 8 This is a schematic diagram of the end centering clamping assembly structure in an embodiment of the present invention; Figure 9 for Figure 8 Enlarged view of section A; Figure 10 This is a schematic diagram of the synchronous linkage clamping assembly structure in an embodiment of the present invention.

[0022] Among them, 1. Fixed platform, 2. End centering clamping assembly, 3. Synchronous linkage clamping assembly, 4. Moving assembly, 21. Support plate, 22. Horizontal moving drive unit, 23. Synchronous centering hollow disc, 24. Centering clamping unit, 25. Inner support centering cone, 31. Support base, 32. Rotary cylinder, 33. Linkage clamping unit, 34. Rotary drive unit, 41. Lead screw, 42. Moving plate, 43. Second motor, 44. Slide rail, 45. Slider, 46. Nut sleeve, 211. L-shaped fixing frame, 221. Guide rod, 222. Movable plate, 2 23. Hydraulic cylinder; 231. Conical surface; 232. Groove; 241. U-shaped bracket; 242. Roller; 243. V-shaped clamp; 244. First torsion spring; 245. Second torsion spring; 246. First rubber anti-slip pad; 311. Ear plate; 312. Guide groove; 321. Gear ring; 331. Gear column; 332. Rack; 333. V-shaped clamp; 334. Second rubber anti-slip pad; 341. Rotating shaft; 342. Drive gear; 343. First pulley; 344. Second pulley; 345. Transmission belt; 346. First motor. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] like Figures 1-10As shown, the present invention provides an efficient welding auxiliary device for steel pipes used in the manufacture of unmanned aerial vehicles, comprising a fixed platform 1 and a stabilizing clamping mechanism disposed on the fixed platform 1. Two sets of stabilizing clamping mechanisms are symmetrically arranged, and the two sets of stabilizing clamping mechanisms are respectively used to clamp two steel pipes to be welded.

[0026] The stabilizing clamping mechanism includes an end centering clamping assembly 2, a synchronous linkage clamping assembly 3, and a moving assembly 4. The end centering clamping assembly 2 is used to clamp the non-welded end of the steel pipe, the synchronous linkage clamping assembly 3 is used to clamp the welded end of the steel pipe, and the moving assembly 4 is used to adjust the position of the end centering clamping assembly 2.

[0027] The end centering clamping assembly 2 includes a support plate 21, a horizontal movement drive unit 22, a synchronous centering hollow disc 23, and a centering clamping unit 24. The support plate 21 is located on the movable part of the moving assembly 4. The horizontal movement drive unit 22 is located on the support plate 21. The synchronous centering hollow disc 23 is located on the movable part of the horizontal movement drive unit 22 and is driven by the horizontal movement drive unit 22 to move along the length direction of the steel pipe. An L-shaped fixing frame 211 is provided on the support plate 21. The centering clamping unit 24 is located on the L-shaped fixing frame 211 and cooperates with the synchronous centering hollow disc 23. The centering clamping unit 24 is arranged in a ring array of three groups.

[0028] The centering clamping unit 24 includes a U-shaped bracket 241, a roller 242, and a V-shaped clamping block 243. An L-shaped fixing frame 211 has a support seat. The U-shaped bracket 241 is rotatably mounted on the support seat via a support shaft. A first torsion spring 244 is sleeved on the support shaft, with its two ends fixed to the support seat and the support shaft, respectively. The two ends of the U-shaped bracket 241 have wheel seats and clamping block seats, respectively. The roller 242 is rotatably mounted on the wheel seats via a wheel axle. The synchronous centering hollow disc 23 has a conical surface 231 on the side closest to the roller 242. A groove 232 is provided on the conical surface 231, and a roller 242 is rolled in the groove 232. A V-shaped clamping block 243 is rotatably mounted on the clamping block seat via a clamping block shaft. A second torsion spring 245 is sleeved on the clamping block shaft, and the two ends of the second torsion spring 245 are fixed to the clamping block seat and the clamping block shaft, respectively. An inner support centering cone 25 is provided on the support plate 21, and a synchronous centering hollow disc 23 is sleeved on the outside of the inner support centering cone 25. The inner support centering cone 25 and the synchronous centering hollow disc 23 are coaxially arranged. A first rubber anti-slip pad 246 is provided on the V-shaped clamping block 243.

[0029] The horizontal movement drive unit 22 includes a guide rod 221, a movable plate 222, and a hydraulic cylinder 223. The guide rod 221 slides through the L-shaped fixed frame 211. The synchronous centering hollow disc 23 and the movable plate 222 are respectively set at both ends of the guide rod 221. The hydraulic cylinder 223 is set on the movable plate 222, and the output end of the hydraulic cylinder 223 is fixed on the support plate 21.

[0030] The synchronous linkage clamping assembly 3 includes a support base 31, a rotating cylinder 32, and a linkage clamping unit 33. The support base 31 is mounted on the fixed platform 1 and located between the two sets of end centering clamping assemblies 2. The rotating cylinder 32 is rotatably mounted on the support base 31 and is coaxially arranged with the synchronous centering hollow disc 23. The linkage clamping unit 33 is mounted on the support base 31, and three sets of the linkage clamping unit 33 are arranged in a ring array.

[0031] The linkage clamping unit 33 includes a gear column 331, a rack 332, and a V-shaped clamping plate 333. The support base 31 is provided with an ear plate 311. The gear column 331 is rotatably mounted on the ear plate 311. The support base 31 is provided with a guide groove 312. The rack 332 is slidably mounted in the guide groove 312 and meshes with the gear column 331. The V-shaped clamping plate 333 is located at the end of the rack 332. The V-shaped clamping plate 333 is provided with a second rubber anti-slip pad 334. A gear ring 321 is sleeved on the rotating drum 32 and meshes with the gear column 331. The two sets of gear rings 321 in the two sets of synchronous linkage clamping assemblies 3 are driven to rotate synchronously by the rotation drive unit 34.

[0032] The rotary drive unit 34 includes a rotating shaft 341, a drive gear 342, a first pulley 343, a second pulley 344, a transmission belt 345, and a first motor 346. The rotating shaft 341 is rotatably mounted between two sets of support seats 31. There are two sets of drive gears 342, which are respectively located at both ends of the rotating shaft 341 and mesh with two sets of gear rings 321. The first pulley 343 is sleeved on the rotating shaft 341. The first motor 346 is mounted on the fixed platform 1. The second pulley 344 is sleeved on the output shaft of the first motor 346. The transmission belt 345 is sleeved on the first pulley 343 and the second pulley 344.

[0033] The moving assembly 4 includes a lead screw 41, a moving plate 42, and a second motor 43. A support plate 21 is mounted on the moving plate 42. The lead screw 41 is rotatably mounted on the fixed platform 1. The second motor 43 is mounted on the fixed platform 1 and its output shaft is connected to one end of the lead screw 41. The bottom of the moving plate 42 is provided with a slider 45 and a nut sleeve 46. The nut sleeve 46 is threaded onto the lead screw 41. The fixed platform 1 is provided with a slide rail 44, and the slider 45 is slidably mounted on the slide rail 44.

[0034] In practical use, the second motor 43 is started according to the length of the steel pipe to be welded. The second motor 43 drives the lead screw 41 to rotate. The lead screw 41 drives the moving plate 42 to slide along the slide rail 44 through the threaded engagement with the nut sleeve 46, thereby adjusting the distance between the two sets of end centering clamping components 2 so that the distance is adapted to the length of the steel pipe.

[0035] Hydraulic cylinder 223 is activated, and its output end extends, pushing movable plate 222 to move guide rod 221 away from support plate 21. Simultaneously, the centering hollow disc 23 moves with guide rod 221. At this time, the pressure of the conical surface 231 of the centering hollow disc 23 on roller 242 decreases, and the first torsion spring 244 drives U-shaped bracket 241 to rotate, causing the V-shaped clamps 243 of the three sets of centering clamping units 24 to open. The non-welded ends of the two steel pipes to be welded are respectively fitted onto the inner support centering cone 25. When the hydraulic cylinder 223 is activated to reverse its action, the output end of the hydraulic cylinder 223 retracts, driving the synchronous centering hollow disc 23 to move away from the support plate 21. The conical surface 231 squeezes the roller 242, causing the U-shaped bracket 241 to rotate against the elastic force of the first torsion spring 244. The three sets of V-shaped clamps 243 clamp synchronously towards the center, realizing the centering and clamping of the non-welded end of the steel pipe. The second torsion spring 245 causes the V-shaped clamps 243 to automatically adhere to the surface of the steel pipe. The first rubber anti-slip pad 246 enhances the clamping friction and protects the surface of the steel pipe.

[0036] The welded ends of the two steel pipes are respectively inserted into the rotating drums 32 of the two sets of synchronous linkage clamping assemblies 3. The first motor 346 is started. The output shaft of the first motor 346 drives the second pulley 344 to rotate. The second pulley 344 drives the first pulley 343 and the rotating shaft 341 to rotate through the transmission belt 345. The drive gears 342 at both ends of the rotating shaft 341 drive the two sets of gear rings 321 to rotate synchronously. The gear rings 321 drive the gear 342 column to rotate. The gear column 331 meshes with the rack 332, causing the rack 332 to slide centripetally along the guide groove 312, thereby causing the V-shaped clamping plate 333 to clamp the welded ends of the two steel pipes synchronously. The second rubber anti-slip pad 334 enhances the clamping stability and protects the surface of the steel pipe, while ensuring that the welded ends of the two steel pipes are precisely coaxially aligned.

[0037] After both steel pipes are centered and clamped, welding can begin. During welding, the stable clamping structure effectively prevents displacement and deformation of the steel pipes, ensuring welding quality. After welding is completed, the first motor 346 is turned off and reversed to drive the V-shaped clamping plate 333 to open outwards; the hydraulic cylinder 223 is activated to open the V-shaped clamping block 243 outwards, allowing the welded steel pipe to be removed.

[0038] In summary, this invention achieves dual centering and clamping of the steel pipe through the cooperation of the end centering clamping assembly 2 and the synchronous linkage clamping assembly 3. In the end centering clamping assembly 2, three sets of annular array centering clamping units 24 are synchronously and centripetally clamped under the drive of the synchronous centering hollow disc 23. Combined with the guiding effect of the inner support centering cone 25, the non-welded end of the steel pipe can be quickly and accurately centered. In the synchronous linkage clamping assembly 3, three sets of linkage clamping units 33 achieve synchronous centripetal clamping through the transmission of the gear ring 321, gear column 331 and rack 332, ensuring the coaxial positioning of the welded end of the steel pipe. Moreover, the two sets of synchronous linkage clamping assemblies 3 are driven synchronously by the rotation drive unit 34 to ensure the precise alignment of the welded ends of the two steel pipes to be welded, effectively avoiding problems such as welding misalignment and uneven gaps, and significantly improving the welding quality.

[0039] In the end centering clamping assembly 2, the first torsion spring 244 provides a continuous restoring force to the U-shaped bracket 241, ensuring that the roller 242 always fits against the conical surface 231 of the synchronous centering hollow disc 23, thus ensuring the stable clamping of the steel pipe by the V-shaped clamp 243. The second torsion spring 245 allows the V-shaped clamp 243 to better fit against the surface of the steel pipe, ensuring a uniform distribution of clamping force. The synchronous linkage clamping assembly 3 achieves rigid clamping through gear transmission, resulting in stable clamping force and preventing loosening. At the same time, the first rubber anti-slip pad 246 on the V-shaped clamp 243 and the second rubber anti-slip pad 334 on the V-shaped clamp 333 not only enhance the clamping friction but also prevent damage to the surface of the steel pipe, further improving clamping stability and reliability, and effectively preventing radial and axial displacement of the steel pipe during welding.

[0040] The moving component 4 drives the lead screw 41 to rotate via the second motor 43, causing the moving plate 42 to slide along the slide rail 44. This allows for quick adjustment of the position of the end centering clamping component 2, adapting to the welding requirements of steel pipes of different lengths. The horizontal moving drive unit 22 drives the synchronous centering hollow disc 23 to move via the hydraulic cylinder 223, enabling the rapid opening and closing of the centering clamping unit 24, facilitating the clamping and removal of steel pipes. The rotating drive unit 34 drives the two sets of synchronously linked clamping components 3 to move synchronously via the first motor 346, belt drive, and gear drive. This eliminates the need for separate manual adjustments, simplifies the operation process, and significantly improves welding efficiency.

[0041] In the end centering clamping assembly 2, the V-shaped clamping block 243 can clamp steel pipes of different diameters. The conical surface 231 design of the synchronous centering hollow disc 23 allows the clamping range of the centering clamping unit 24 to be flexibly adjusted. In the synchronous linkage clamping assembly 3, the sliding stroke of the rack 332 along the guide groove 312 can meet the clamping requirements of steel pipes of different diameters. It can adapt to the welding of various specifications of steel pipes without changing the clamps, reducing equipment investment costs and improving the versatility of the equipment.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An efficient welding auxiliary device for unmanned aerial vehicle manufacturing steel pipes, comprising a fixing table (1) and a stable clamping mechanism arranged on the fixing table (1), the stable clamping mechanism is symmetrically provided with two groups, and the two groups of stable clamping mechanisms are respectively used for clamping two steel pipes to be welded, characterized in that: The stable clamping mechanism comprises an end centering clamping assembly (2), a synchronous linkage clamping assembly (3) and a moving assembly (4), the end centering clamping assembly (2) is used for clamping the non-welding end of the steel pipe, the synchronous linkage clamping assembly (3) is used for clamping the welding end of the steel pipe, and the moving assembly (4) is used for adjusting the position of the end centering clamping assembly (2); The end centering clamping assembly (2) comprises a support plate (21), a horizontal moving driving unit (22), a synchronous centering hollow disc (23) and a centering clamping unit (24), the support plate (21) is arranged on the movable part of the moving assembly (4), the horizontal moving driving unit (22) is arranged on the support plate (21), the synchronous centering hollow disc (23) is arranged on the movable part of the horizontal moving driving unit (22) and is driven by the horizontal moving driving unit (22) to move along the length direction of the steel pipe, an L-shaped fixing frame (211) is arranged on the support plate (21), the centering clamping unit (24) is arranged on the L-shaped fixing frame (211) and cooperates with the synchronous centering hollow disc (23), and the centering clamping unit (24) is arranged in a ring array and has three groups; The centering clamping unit (24) comprises a U-shaped support (241), a roller (242) and a V-shaped clamping block (243), a support seat is arranged on the L-shaped fixing frame (211), the U-shaped support (241) is rotatably arranged on the support seat through a support shaft, a first torsional spring (244) is sleeved on the support shaft, two ends of the first torsional spring (244) are fixed on the support seat and the support shaft respectively, two ends of the U-shaped support (241) are respectively provided with a wheel seat and a clamping block seat, the roller (242) is rotatably arranged on the wheel seat through a wheel shaft, one side of the synchronous centering hollow disc (23) close to the roller (242) is a conical surface (231), and the roller (242) is rotatably arranged on the conical surface (231); the V-shaped clamping block (243) is rotatably arranged on the clamping block seat through a clamping block shaft, a second torsional spring (245) is sleeved on the clamping block shaft, and two ends of the second torsional spring (245) are fixed on the clamping block seat and the clamping block shaft respectively.

2. The high efficient welding assistant device for unmanned aerial vehicle manufacturing steel pipe according to claim 1, characterized in that: The synchronous linkage clamping assembly (3) comprises a support seat (31), a rotating cylinder (32) and a linkage clamping unit (33), the support seat (31) is arranged on the fixed table (1) and located between the two end centering clamping assemblies (2), the rotating cylinder (32) is rotatably arranged on the support seat (31) and coaxially arranged with the synchronous centering hollow disc (23), and the linkage clamping unit (33) is arranged on the support seat (31); the linkage clamping unit (33) is arranged in a ring array and has three groups. The linkage clamping unit (33) comprises a gear column (331), a rack (332) and a V-shaped clamping plate (333), the support seat (31) is provided with an ear plate (311), the gear column (331) is rotatably arranged on the ear plate (311), the support seat (31) is provided with a guide groove (312), the rack (332) is slidably arranged in the guide groove (312) and is engaged with the gear column (331), the V-shaped clamping plate (333) is arranged at the end of the rack (332), the rotating drum (32) is sleeved with a gear ring (321), the gear ring (321) is engaged with the gear column (331), and the two gear rings (321) in the two groups of synchronous linkage clamping assemblies (3) are driven to synchronously rotate by the rotary drive unit (34).

3. The high efficient welding assistant device for unmanned aerial vehicle manufacturing steel pipe according to claim 2, characterized in that: The rotary drive unit (34) comprises a rotating shaft (341), a drive gear (342), a first belt pulley (343), a second belt pulley (344), a transmission belt (345) and a first motor (346), the rotating shaft (341) is rotatably arranged between the two groups of support seats (31), the drive gear (342) is provided in two groups, the two groups of drive gears (342) are respectively arranged at the two ends of the rotating shaft (341) and are respectively engaged with the two groups of gear rings (321), the first belt pulley (343) is sleeved on the rotating shaft (341), the first motor (346) is arranged on the fixed table (1), the second belt pulley (344) is sleeved on the output shaft of the first motor (346), and the transmission belt (345) is sleeved on the first belt pulley (343) and the second belt pulley (344).

4. The high efficient welding assistant device for unmanned aerial vehicle manufacturing steel pipe according to claim 1, characterized in that: The horizontal movement drive unit (22) comprises a guide rod (221), a movable plate (222) and a hydraulic cylinder (223), the guide rod (221) is slidably penetrated through the L-shaped fixing frame (211), the synchronous centering hollow disc (23) and the movable plate (222) are respectively arranged at the two ends of the guide rod (221), and the hydraulic cylinder (223) is arranged on the movable plate (222).

5. The high efficient welding assistant device for unmanned aerial vehicle manufacturing steel pipe according to claim 1, characterized in that: The moving assembly (4) comprises a lead screw (41), a moving plate (42) and a second motor (43), the support plate (21) is arranged on the moving plate (42), the lead screw (41) is rotatably arranged on the fixed table (1), the second motor (43) is arranged on the fixed table (1) and the output shaft thereof is connected with one end of the lead screw (41), the bottom of the moving plate (42) is provided with a sliding block (45) and a nut sleeve (46), the nut sleeve (46) is threadedly sleeved on the lead screw (41), the fixed table (1) is provided with a sliding rail (44), and the sliding block (45) is slidably arranged on the sliding rail (44).

6. The high efficient welding assistant device for unmanned aerial vehicle manufacturing steel pipe according to claim 1, characterized in that: The support plate (21) is provided with an inner support centering cone (25), the synchronous centering hollow disc (23) is sleeved outside the inner support centering cone (25), and the inner support centering cone (25) is coaxially arranged with the synchronous centering hollow disc (23).

7. The high efficient welding assistant device for unmanned aerial vehicle manufacturing steel pipe according to claim 1, characterized in that: The conical surface (231) is provided with a rolling groove (232), and the roller (242) is rolling arranged in the rolling groove (232).

8. The high efficient welding assistant device for unmanned aerial vehicle manufacturing steel pipe according to claim 1, characterized in that: The V-shaped clamping block (243) is provided with a first rubber non-slip pad (246).

9. The high efficient welding assistant device for unmanned aerial vehicle manufacturing steel pipe according to claim 2, characterized in that: The V-shaped clamping block (243) is provided with a first rubber non-slip pad (246).

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