A high-quality welding device for aircraft load-bearing rods

Abstract

The present invention relates to the field of aircraft welding technology, and specifically to a high-quality welding device for aircraft load-bearing rods. It includes a central clamping mechanism and two groups of end clamping mechanisms, a welding mechanism and a detection sensor mechanism, each of which is provided with two groups and located at both ends of the central clamping mechanism. An adaptive adjustment mechanism is provided in the central clamping mechanism. The end clamping mechanism includes a transverse movement assembly, a spindle, an angle correction assembly and a multi-claw chuck. The welding mechanism includes a first fixed frame, a welding sliding frame and a laser welding head. The detection sensor mechanism includes a second fixed frame, a lifting frame, a detection drive assembly and a detection probe. The central clamping mechanism includes a central clamping seat and a bottom support block installed therein and a top clamping block slidably installed thereon. The present invention has strong versatility and high operability, reduces the replacement frequency of tooling fixtures, and the detection sensor mechanism can timely and accurately detect the welding quality, find potential defects, and ensure the reliability and safety of the aircraft load-bearing rod.

Description

Technical Field

[0001] The invention relates to the technical field of aircraft welding, and in particular to high-quality welding equipment for aircraft load-bearing rods. Background Art

[0002] At present, in helicopters and other aircraft, load-bearing rods such as main struts are usually welded from a rod body and two connecting joints, and the welding part is a circular weld. Such components require extremely high precision, and the weld grade must reach level one. Laser ring welding technology is often used for welding to ensure high welding precision and high weld connection strength.

[0003] However, previous welding equipment has many drawbacks. It is difficult to clamp the load-bearing rod accurately and stably, and the adaptability to load-bearing rods of different specifications and shapes is poor. The load-bearing rod is prone to position displacement during welding, which seriously affects the welding accuracy and quality. Moreover, traditional equipment has poor versatility and operability. When welding load-bearing rods of different types and specifications, the tooling fixtures need to be replaced frequently, which greatly increases the production cost and production cycle.

[0004] In addition, the existing equipment has defects in its detection methods, and it is impossible to accurately and comprehensively determine whether the rod body and the connecting joint are coaxially welded in a timely manner. After a long period of welding, the connecting joint is prone to slight deviation, causing the welding axis to shift, thereby reducing the welding accuracy and connection strength, burying a huge hidden danger to the safe operation of the aircraft.

[0005] In summary, the existing aircraft load-bearing rod welding equipment has many shortcomings in clamping stability, welding accuracy, adaptive adjustment, detection effect and versatility, and it is difficult to meet the strict requirements of high-quality welding of aircraft load-bearing rods. Therefore, there is an urgent need for an innovative and high-performance welding equipment to overcome these problems. Summary of the invention

[0006] Based on this, it is necessary to provide a high-quality welding equipment for aircraft load-bearing rods in response to the existing technical problems.

[0007] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0008] The invention provides a high-quality welding device for an aircraft load-bearing rod. The load-bearing rod comprises a rod body and connecting ends at both ends of the rod body. The welding device comprises a central clamping mechanism and two groups of end clamping mechanisms, a welding mechanism and a detection sensor mechanism, wherein the central clamping mechanism is provided with an adaptive adjustment mechanism. The end clamping mechanism comprises a transverse movement component and a main shaft, an angle correction component and a multi-claw chuck, which are all installed on the transverse movement component. The multi-claw chuck is installed on the main shaft, and the angle correction component is connected to the main shaft by transmission. The welding mechanism comprises a first fixed frame located beside the welding point of the rod body and the connecting end head, a welding sliding frame is slidably arranged on the first fixed frame, and a laser welding head is installed on the welding sliding frame. The detection sensor mechanism comprises a second fixed frame arranged beside the first fixed frame, a vertically sliding lifting frame and a detection drive component for driving the lifting frame to move are arranged on the second fixed frame, and a detection probe is installed on the lifting frame. The central clamping mechanism comprises a central clamping seat, a bottom support block installed therein and a top clamping block slidably installed thereon, and the main shaft is coaxially arranged with the central clamping seat.

[0009] Preferably, there are several bottom support blocks which are distributed in a ring around the axis of the center clamping seat, there are two top clamping blocks which are symmetrically arranged along the vertical plane of the center clamping seat, the adaptive adjustment mechanism includes an adaptive adjustment component for adjusting the position of the bottom support block, a rotating drive component for driving the adaptive adjustment component, and a transmission component for driving the welding sliding frame to move, the transmission component includes a transmission connecting rod and a sliding block, the sliding block is slidably installed on the center clamping seat, the sliding block is transmission-connected to one of the bottom support blocks, one end of the transmission connecting rod is fixedly connected to the welding sliding frame, and the other end of the transmission connecting rod is fixedly connected to the sliding block.

[0010] Preferably, the detection drive assembly includes a first linear drive, an articulated rod and a vertical slide rail. The first linear drive is horizontally fixedly mounted on the second fixed frame. The output direction of the first linear drive is perpendicular to the length direction of the rod body. A push plate is provided on the output end of the first linear drive. The vertical slide rail is vertically fixedly mounted on the second fixed frame. The push plate is horizontally slidably arranged on the second fixed frame. One end of the articulated rod is hinged to the push plate, and the other end of the articulated rod is hinged to the lifting frame. The lifting frame is slidably connected to the second fixed frame via the vertical slide rail.

[0011] Preferably, the detection sensing mechanism also includes two horizontal sliding frames, each of which is symmetrically arranged along the vertical center plane of the lifting frame, a locking bolt, a lifting plate, a pressure sensor, a first spring and a second spring, the lifting frame is provided with a horizontal locking groove, the locking bolt is installed on the horizontal sliding frame, the horizontal sliding frame is slidably arranged on the lifting frame, the horizontal sliding frame is connected to the lifting frame through the locking bolt, the lifting plate is vertically slidably installed on the horizontal sliding frame, the first spring and the second spring are both arranged between the lifting plate and the horizontal sliding frame, one end of the first spring is fixedly connected to the lifting plate, the other end of the first spring is fixedly connected to the horizontal sliding frame, the pressure sensor is fixedly installed on the horizontal sliding frame, the detection probe is arranged through the lifting plate, one end of the second spring is fixedly connected to the detection probe, and the other end of the second spring is fixedly connected to the pressure sensor.

[0012] Preferably, the rotation drive assembly includes a positioning rotation column, a limiting rotation column, an arc-shaped limiting plate, a transmission chain, a transmission gear, a driving gear and a first rotation driver. Two positioning rotation columns and two limiting rotation columns are each provided. The arc-shaped limiting plate is installed on the center clamping seat and is coaxially arranged with the center clamping seat. The arc-shaped limiting plate is vertically arranged. The tops of both ends of the arc-shaped limiting plate are fixedly connected to the top of the center clamping seat. The arc-shaped limiting plate is located on one side of the adaptive adjustment assembly close to the end clamping mechanism. The two positioning rotation columns are installed in the two ends of the arc-shaped limiting plate. The first rotation driver is fixedly installed on the center clamping seat. The driving gear is fixedly installed on the output end of the first rotation driver. The two limiting rotation columns are installed on both sides of the driving gear. The transmission chain is sleeved on the positioning rotation column, the limiting rotation column and the arc-shaped limiting plate. There are several transmission gears. Each adaptive adjustment assembly is connected to a transmission gear in transmission. The transmission gear and the driving gear are both meshed with the transmission chain.

[0013] Preferably, the adaptive adjustment component includes a mounting seat, a threaded sleeve and a threaded rod, a telescopic limit rod is provided on the bottom support block, one end of the telescopic limit rod is fixedly connected to the bottom support block, the other end of the telescopic limit rod is fixedly connected to the side wall of the center clamping seat, the mounting seat is fixedly installed on the center clamping seat, the threaded sleeve is rotatably set on the mounting seat, the threaded rod points to the axis center of the center clamping seat, the threaded rod is threadedly connected to the threaded sleeve, the transmission gear is fixedly connected to the threaded sleeve, and one end of the threaded rod close to the rod body is fixedly connected to the bottom support block.

[0014] Preferably, one end of the bottom support block close to the rod body is axially connected to a first abutting roller, and one end of the top clamping block close to the rod body is axially connected to a second abutting roller.

[0015] Preferably, the welding equipment also includes a rotation drive mechanism, which includes a second rotation drive, a bearing seat, a fitting transmission wheel, an elastic base and a third rotation drive, the elastic base is fixedly mounted on the center clamping seat, the second rotation drive is fixedly mounted on the elastic base, the bearing seat is fixedly mounted on the elastic base, the fitting transmission wheel shaft is connected to the bearing seat, the output end of the second rotation drive is fixedly connected to the fitting transmission wheel, the axial direction of the fitting transmission wheel is consistent with the axial direction of the rod body, the third rotation drive is provided with two and are respectively located on the two end clamping mechanisms, and the output end of the third rotation drive is transmission-connected to an end of the main shaft away from the center clamping seat.

[0016] Preferably, the angle correction assembly includes an adjusting drive rod, a second linear drive, a sleeve ring, a limit seat and a supporting device. The main shaft is connected to the output end of the transverse movement assembly through the supporting device. The second linear drive is hinged to the output end of the transverse movement assembly. The third rotary drive is installed on the sleeve ring. The sleeve ring is connected to the main shaft through a bearing. The sleeve ring is slidingly connected to the output end of the transverse movement assembly through the limit seat. The output end of the second linear drive is connected to one end of the adjusting drive rod, and the other end of the adjusting drive rod is hinged to the sleeve ring.

[0017] Preferably, the supporting device includes an arc ring, a mounting sleeve and a fixed support seat, the fixed support seat is fixedly mounted on the output end of the transverse movement assembly, the mounting sleeve is fixedly connected to the fixed support seat, the arc ring is fixedly mounted on the main shaft, and the mounting sleeve is rotatably connected to the arc ring through a bearing.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention uses the bottom support block and the top clamping block of the center clamping mechanism and the multi-claw chuck of the end clamping mechanism to firmly clamp the load-bearing rod from multiple directions, adapt to different specifications and shapes, prevent position deviation during welding, and ensure welding accuracy and quality. In particular, the annular distribution of the bottom support block and the symmetrical arrangement of the top clamping block, as well as the precise clamping of the multi-claw chuck, greatly improve the stability of clamping.

[0020] 2. The present invention can accurately and comprehensively detect welds through the detection probe of the detection sensor mechanism through the lifting frame and the detection drive assembly, timely discover welding defects, and ensure the reliability and safety of the aircraft load-bearing rod. The rotation drive assembly and the angle correction assembly, including the second rotation drive, the fitting transmission wheel, the adjustment drive rod and other structures, can conveniently and flexibly adjust the angle and position of the load-bearing rod to meet complex and diverse welding requirements and improve welding efficiency and quality.

[0021] 3. The adaptive adjustment mechanism can automatically and accurately adjust the clamping position and welding position according to the specific conditions of the load-bearing rod through the cooperation of the rotating drive component, the adaptive adjustment component and the transmission component. For example, the transmission chain drives the transmission gear to rotate, realizing the flexible displacement of the bottom support block, thereby accurately adapting to different load-bearing rods and improving welding accuracy and equipment adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural diagram of a high-quality welding device for aircraft load-bearing rods;

[0023] Figure 2 It is a top view of a high-quality welding device for aircraft load-bearing rods;

[0024] Figure 3 It is a partial three-dimensional structural diagram of a high-quality welding device for aircraft load-bearing rods;

[0025] Figure 4 It is a three-dimensional structural diagram of a central clamping mechanism and a welding mechanism in a high-quality welding device for an aircraft load-bearing rod;

[0026] Figure 5 It is a three-dimensional structural schematic diagram of a central clamping mechanism in a high-quality welding device for an aircraft load-bearing rod;

[0027] Figure 6 It is a side view of the center clamping mechanism in a high-quality welding device for aircraft load-bearing rods;

[0028] Figure 7 It is a three-dimensional structural diagram of the end clamping mechanism and the detection sensor mechanism in a high-quality welding device for an aircraft load-bearing rod;

[0029] Figure 8 It is a three-dimensional structural schematic diagram of a detection sensor mechanism in a high-quality welding device for an aircraft load-bearing rod;

[0030] Fig. 9 A schematic diagram of the partial three-dimensional structure of the detection sensor mechanism in a high-quality welding device for an aircraft load-bearing rod

[0031] Fig.10 The present invention is a schematic diagram of the three-dimensional structure of a load-bearing rod in a high-quality welding device for an aircraft load-bearing rod.

[0032] The numbers in the figure are:

[0033] 1. Rod body; 2. Connecting end; 3. Center clamping mechanism; 4. End clamping mechanism; 5. Welding mechanism; 6. Detection sensing mechanism; 7. Adaptive adjustment mechanism; 8. Transverse movement assembly; 9. Spindle; 10. Angle correction assembly; 11. Multi-claw chuck; 12. First fixed frame; 13. Welding slide frame; 14. Laser welding head; 15. Second fixed frame; 16. Lifting frame; 17. Detection drive assembly; 18. Detection probe; 19. Center clamping seat; 20. Bottom support block; 21. Top clamping block; 22. Adaptive adjustment assembly; 23. Rotation drive assembly; 24. Transmission assembly; 25. Transmission connecting rod; 26. Sliding block; 27. First linear drive; 28. Articulated rod; 29. ​​Vertical slide rail; 30. Push plate; 31. Horizontal slide frame; 32. Locking bolt; 33. Lifting plate; 34. Pressure sensor; 35, first spring; 36, second spring; 37, horizontal locking groove; 38, positioning rotating column; 39, limiting rotating column; 40, arc-shaped limiting plate; 41, transmission chain; 42, transmission gear; 43, driving gear; 44, first rotary driver; 45, mounting seat; 46, threaded sleeve; 47, threaded rod; 48, telescopic limiting rod; 49, first interference roller; 50, second interference roller; 51, second rotary driver; 52, bearing seat; 53, fitting transmission wheel; 54, elastic base; 55, third rotary driver; 57, adjusting driving rod; 58, second linear driver; 59, sleeve ring; 60, limiting seat; 61, arc-shaped ring; 62, mounting sleeve; 63, fixed support seat; 64, pulling rod; 65, third linear driver; 66, inclined slide rail; 67, inclined slider. DETAILED DESCRIPTION

[0034] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] like Figure 1-10 A high-quality welding device for an aircraft load-bearing rod is shown, the load-bearing rod includes a rod body 1 and connecting ends 2 located at both ends of the rod body 1, the welding device includes a central clamping mechanism 3 and two groups of end clamping mechanisms 4, a welding mechanism 5 and a detection sensor mechanism 6, the central clamping mechanism 3 is provided with an adaptive adjustment mechanism 7, the end clamping mechanism 4 includes a transverse movement component 8 and a main shaft 9, an angle correction component 10 and a multi-claw chuck 11, all of which are installed on the transverse movement component 8, the multi-claw chuck 11 is installed on the main shaft 9, the angle correction component 10 is connected to the main shaft 9 in transmission, the welding mechanism 5 includes a first fixed frame 12 located beside the welding point between the rod body 1 and the connecting end 2, and a welding sliding frame 13 (such as Figure 4As shown in FIG. 1 ), the welding slide frame 13 is equipped with a laser welding head 14, and the detection sensor mechanism 6 includes a second fixed frame 15 arranged beside the first fixed frame 12, and a vertically sliding lifting frame 16 (as shown in FIG. Figure 7 As shown in the figure, and a detection drive assembly 17 for driving the lifting frame 16 to move, a detection probe 18 is installed on the lifting frame 16, the center clamping mechanism 3 includes a center clamping seat 19, a bottom support block 20 installed therein and a top clamping block 21 slidably installed thereon, and the main shaft 9 is coaxially arranged with the center clamping seat 19.

[0036] During the welding process, the rod body 1 of the load-bearing rod and the connecting ends 2 at both ends thereof are first clamped and fixed by the central clamping mechanism 3. The bottom support block 20 and the top clamping block 21 in the central clamping seat 19 cooperate with each other. Multiple bottom support blocks 20 are distributed in a ring around the axis of the central clamping seat 19, and the two top clamping blocks 21 are symmetrically arranged along the vertical plane of the central clamping seat 19, which can stably support and clamp the rod body 1 from multiple directions. The transverse movement component 8 in the end clamping mechanism 4 can drive the main shaft 9, the angle correction component 10 and the multi-claw chuck 11 to move laterally, so as to adapt to load-bearing rods of different lengths. The multi-claw chuck 11 is installed on the main shaft 9, and the concentricity of the clamping is ensured by the coaxial arrangement of the main shaft 9 and the central clamping seat 19. The angle correction component 10 is connected to the main shaft 9 in a transmission manner, and can adjust the angle of the connecting end 2 as needed to improve the flexibility of welding.

[0037] The first fixed frame 12 of the welding mechanism 5 is located beside the welding point between the rod body 1 and the connecting end 2. The welding slide frame 13 on the first fixed frame 12 can slide flexibly, and the laser welding head 14 installed on the welding slide frame 13 can accurately weld the welding part. During the welding process, the laser welding head 14 can provide high-precision and high-energy density welding to ensure the quality of the weld. The second fixed frame 15 of the detection sensor mechanism 6 is located beside the first fixed frame 12. The lifting frame 16 on the second fixed frame 15 can slide vertically under the action of the detection drive component 17. The detection probe 18 installed on the lifting frame 16 can detect the condition of the welding part in real time.

[0038] During the welding operation, the rod body 1 is first clamped by the central clamping mechanism 3 and the connecting end 2 is clamped by the end clamping mechanism 4, and the main shaft 9 connected thereto is driven to adjust to a suitable angle by the angle correction component 10. Then, the welding slide frame 13 drives the laser welding head 14 to move to the welding position for welding. After the welding is completed, the lifting frame 16 drives the detection probe 18 to descend to detect the weld.

[0039] This design can achieve all-round stable clamping of the load-bearing rod, adapt to load-bearing rods of different specifications and shapes, ensure that the load-bearing rod will not be offset during the welding process, thereby improving the welding accuracy and quality. The use of the laser welding head 14 can provide high-quality welds, reduce the heat-affected zone, and enhance the connection strength of the weld. The detection sensor mechanism 6 can detect welding defects in time, ensure welding quality, and improve the reliability and safety of the aircraft load-bearing rod.

[0040] There are several bottom support blocks 20 and they are all distributed in a ring around the axis of the central clamping seat 19. There are two top clamping blocks 21 and they are symmetrically arranged along the vertical plane of the central clamping seat 19. The central clamping mechanism 3 also includes a pulling rod 64, a third linear driver 65, an inclined slide rail 66 and an inclined slider 67. The inclined slide rail 66 is installed on the top of the central clamping seat 19. One end of the pulling rod 64 is hinged to the inclined slider 67, and the other end of the pulling rod 64 is connected to the third linear driver 65. The inclined slider 67 is slidably arranged on the inclined slide rail 66, and the top clamping block 21 is fixedly installed on the inclined slider 67. When it is necessary to clamp the rod body 1, the top clamping blocks 21 located on both sides of the top of the rod body 1 are pressed down to achieve the clamping of the rod body 1. The output of the third linear driver 65 drives the pulling rod 64 to move, and the pulling rod 64 drives the inclined slider 67 to move along the inclined direction of the inclined slide rail 66, thereby driving the top clamping block 21 installed on the inclined slider 67 to move toward the rod body 1.

[0041] The adaptive adjustment mechanism 7 includes an adaptive adjustment component 22 for adjusting the position of the bottom support block 20, a rotation drive component 23 for driving the adaptive adjustment component 22 to work, and a transmission component 24 for driving the welding slide frame 13 to move. The transmission component 24 includes a transmission connecting rod 25 and a sliding block 26. The sliding block 26 is slidably installed on the central clamping seat 19. The sliding block 26 is transmission-connected to one of the bottom support blocks 20. One end of the transmission connecting rod 25 is fixedly connected to the welding slide frame 13, and the other end of the transmission connecting rod 25 is fixedly connected to the sliding block 26.

[0042] The adaptive adjustment assembly 22 can flexibly adjust the position of the bottom support block 20. The rotation drive assembly 23 provides power for the adaptive adjustment assembly 22, so that it can be accurately adjusted according to the actual situation of the load-bearing rod. The sliding block 26 in the transmission assembly 24 can slide smoothly on the central clamping seat 19 and is connected to one of the bottom support blocks 20. One end of the transmission connecting rod 25 is firmly fixed to the welding sliding frame 13, and the other end is also fixedly connected to the sliding block 26.

[0043] When the position of the bottom support block 20 needs to be adjusted, the rotation drive assembly 23 is started to drive the adaptive adjustment assembly 22 to work. The adaptive adjustment assembly 22 drives the bottom support block 20 to move, and at the same time, through the transmission connection with the sliding block 26, the sliding block 26 slides on the central clamping seat 19. The sliding of the sliding block 26 drives the welding sliding frame 13 to move through the transmission connecting rod 25, thereby realizing the adaptive adjustment of the welding position.

[0044] This adaptive adjustment mechanism 7 can automatically adjust the position of the bottom support block 20 according to the specific shape and size of the load-bearing rod, thereby achieving more accurate and stable clamping. At the same time, through the linkage of the transmission component 24 and the welding slide frame 13, the welding position can be adjusted in real time while the clamping is adjusted, thereby improving the accuracy and consistency of welding, and effectively improving the welding quality and efficiency.

[0045] The detection drive assembly 17 includes a first linear drive 27, a hinge rod 28 and a vertical slide rail 29. The first linear drive 27 is horizontally fixedly mounted on the second fixing frame 15 (such as Figure 8 As shown in the figure, the output direction of the first linear drive 27 is perpendicular to the length direction of the rod body 1, a push plate 30 is provided on the output end of the first linear drive 27, a vertical slide rail 29 is vertically fixedly installed on the second fixed frame 15, the push plate 30 is horizontally slidably arranged on the second fixed frame 15, one end of the hinged rod 28 is hinged to the push plate 30, and the other end of the hinged rod 28 is hinged to the lifting frame 16, and the lifting frame 16 is slidably connected to the second fixed frame 15 through the vertical slide rail 29.

[0046] When the lifting frame 16 needs to be driven to move vertically, the first linear drive 27 is started. Its output end pushes the push plate 30 to move horizontally. Since one end of the hinged rod 28 is hinged to the push plate 30 and the other end is hinged to the lifting frame 16, the horizontal movement of the push plate 30 drives the lifting frame 16 to slide vertically along the vertical slide rail 29 through the hinged rod 28.

[0047] The design structure of the detection drive assembly 17 is compact, and the horizontal movement of the first linear drive 27 is converted into the vertical displacement of the lifting frame 16, so that the lifting movement of the lifting frame 16 can be accurately and stably controlled, thereby ensuring that the detection probe 18 can accurately reach the detection position, thereby improving the accuracy and reliability of the detection. At the same time, the structure is simple and reliable, and easy to install and maintain.

[0048] The detection sensing mechanism 6 also includes two horizontal sliding frames 31, locking bolts 32, lifting plates 33, pressure sensors 34, first springs 35 and second springs 36, each of which is provided with two horizontal sliding frames 31 and symmetrically arranged along the vertical center plane of the lifting frame 16. The lifting frame 16 is provided with a horizontal locking groove 37. The locking bolts 32 are installed on the horizontal sliding frame 31. The horizontal sliding frame 31 is slidably arranged on the lifting frame 16. The horizontal sliding frame 31 is connected to the lifting frame 16 through the locking bolts 32. The lifting plate 33 is vertically slidably installed on the horizontal sliding frame 31. The first spring 35 and the second spring 36 are both arranged between the lifting plate 33 and the horizontal sliding frame 31. One end of the first spring 35 is fixedly connected to the lifting plate 33, and the other end of the first spring 35 is fixedly connected to the horizontal sliding frame 31. The pressure sensor 34 is fixedly installed on the horizontal sliding frame 31. The detection probe 18 is arranged on the lifting plate 33 through the lifting plate 33. One end of the second spring 36 is fixedly connected to the detection probe 18, and the other end of the second spring 36 is fixedly connected to the pressure sensor 34.

[0049] When testing, the lifting frame 16 drives the horizontal sliding frame 31 close to the load-bearing rod, and the detection probe 18 contacts the load-bearing rod. The load-bearing rod applies pressure to the detection probe 18, so that the lifting plate 33 slides vertically on the horizontal sliding frame 31, thereby compressing the first spring 35, and the pressure is transmitted to the second spring 36 through the detection probe 18. The second spring 36 is deformed under pressure and then transmits the pressure to the pressure sensor 34. This transmission process can ensure the sensitivity and accuracy of the detection. The compression of the first spring 35 plays a buffering role, making the detection pressure transmission more stable and reducing the error caused by instantaneous pressure shock. The second spring 36 helps to accurately transmit the pressure exerted on the detection probe 18 to the pressure sensor 34. The sliding of the lifting plate 33 adapts to the surface conditions of different load-bearing rods and improves the detection adaptability. The pressure sensor 34 can obtain accurate pressure data in a timely manner, providing a reliable basis for judging the quality of the load-bearing rod, and enhancing the reliability and accuracy of the detection. When the two detection probes 18 on the lifting frame 16 respectively hit the outer walls of the rod body 1 and the connecting end 2, if the rod body 1 and the connecting end 2 rotate synchronously, it is possible to detect whether the connecting end 2 and the rod body 1 are in a coaxial state and whether they are in a horizontal state based on the data on the pressure sensor 34.

[0050] The rotary drive assembly 23 includes a positioning rotary column 38, a limiting rotary column 39, an arc-shaped limiting plate 40, a transmission chain 41, a transmission gear 42, a driving gear 43 and a first rotary driver 44. The positioning rotary column 38 and the limiting rotary column 39 are each provided with two, the arc-shaped limiting plate 40 is mounted on the central clamping seat 19 and is coaxially arranged with the central clamping seat 19, the arc-shaped limiting plate 40 is vertically arranged, and the tops of both ends of the arc-shaped limiting plate 40 are fixedly connected to the top of the central clamping seat 19. The arc-shaped limiting plate 40 is located on one side of the adaptive adjustment assembly 22 close to the end clamping mechanism 4, and the two positioning rotary columns 38 are mounted on both sides of the arc-shaped limiting plate 40. In each end, the first rotation driver 44 is fixedly mounted on the central clamping seat 19, the driving gear 43 is fixedly mounted on the output end of the first rotation driver 44, two limiting rotation columns 39 are mounted on both sides of the driving gear 43, the transmission chain 41 is sleeved on the positioning rotation column 38, the limiting rotation column 39 and the arc-shaped limiting plate 40, and a plurality of transmission gears 42 are provided, each adaptive adjustment component 22 is transmission-connected to a transmission gear 42, the transmission gear 42 and the driving gear 43 are both meshed with the transmission chain 41, and the rotation drive component 23 is transmission-connected to the bottom support block 20 through the transmission gear 42 and the adaptive adjustment component 22.

[0051] During operation, the first rotary driver 44 is started, driving the driving gear 43 to rotate and then driving the transmission chain 41 to rotate. The positioning rotary column 38, the limiting rotary column 39 and the arc-shaped limiting plate 40 are used to guide and limit the running trajectory of the transmission chain 41. The transmission chain 41 drives the transmission gear 42 meshing therewith to rotate, and the transmission gear 42 drives the adaptive adjustment component 22 connected thereto and then drives the bottom support block 20 to slide along the radial direction of the rod body 1, thereby realizing the driving function of the bottom support block 20 to adjust its position to adapt to different load-bearing rods.

[0052] It can realize synchronous driving of multiple bottom support blocks 20, ensuring the consistency and stability of adjustment. The layout of each component is reasonable, the transmission efficiency is high, the position of the bottom support block 20 can be accurately controlled, and the adaptability and clamping accuracy of the equipment are improved.

[0053] The adaptive adjustment component 22 includes a mounting seat 45, a threaded sleeve 46 and a threaded rod 47. A telescopic limit rod 48 is provided on the bottom support block 20. One end of the telescopic limit rod 48 is fixedly connected to the bottom support block 20, and the other end of the telescopic limit rod 48 is fixedly connected to the side wall of the center clamping seat 19. The mounting seat 45 is fixedly installed on the center clamping seat 19, and the threaded sleeve 46 is rotatably set on the mounting seat 45. The threaded rod 47 points to the axis center of the center clamping seat 19. The threaded rod 47 is threadedly connected to the threaded sleeve 46, the transmission gear 42 is fixedly connected to the threaded sleeve 46, and the end of the threaded rod 47 close to the rod body 1 is fixedly connected to the bottom support block 20.

[0054] When the position of the bottom support block 20 needs to be adjusted, the transmission gear 42 rotates to drive the threaded sleeve 46 to rotate. Due to the limitation of the telescopic limit rod 48, the rotation of the threaded sleeve 46 will cause the threaded rod 47 to move along its axial direction, thereby pushing the bottom support block 20 closer to or away from the axis of the center clamping seat 19, thereby realizing adaptive position adjustment.

[0055] The precise position adjustment is achieved through the threaded transmission, and the telescopic limit rod 48 ensures the stability and directionality of the movement. The position of the bottom support block 20 can be flexibly adjusted according to the actual situation of the load-bearing rod, thereby improving the adaptability and stability of the clamping, thereby ensuring the welding quality.

[0056] One end of the bottom support block 20 close to the rod body 1 is axially connected to a first abutting roller 49 , and one end of the top clamping block 21 close to the rod body 1 is axially connected to a second abutting roller 50 .

[0057] During operation, when the bottom support block 20 and the top clamping block 21 clamp the load-bearing rod, the first and second abutting rollers 49 and 50 contact the load-bearing rod. Due to the shaft connection, during the clamping and adjustment process, the first and second abutting rollers 49 and 50 can be connected with the outer wall of the rod body 1 in a rolling manner, reducing the friction between the load-bearing rod and avoiding damage to the surface of the load-bearing rod.

[0058] The welding equipment also includes a rotary drive mechanism, which includes a second rotary drive 51, a bearing seat 52, a fitting transmission wheel 53, an elastic base 54 and a third rotary drive 55. The elastic base 54 is fixedly mounted on the center clamping seat 19, the second rotary drive 51 is fixedly mounted on the elastic base 54, the bearing seat 52 is fixedly mounted on the elastic base 54, the fitting transmission wheel 53 is axially connected to the bearing seat 52, the output end of the second rotary drive 51 is fixedly connected to the fitting transmission wheel 53, the axial direction of the fitting transmission wheel 53 is consistent with the axial direction of the rod body 1, and two third rotary drives 55 are provided and are respectively located on the two end clamping mechanisms 4, and the output end of the third rotary drive 55 is transmission-connected to one end of the spindle 9 away from the center clamping seat 19.

[0059] The second rotary driver 51 is started to drive the fitting transmission wheel 53 to rotate, thereby providing a certain amount of rotary power. At the same time, the two third rotary drivers 55 respectively provide rotary power for the main shafts 9 on the two end clamping mechanisms 4, so that the main shafts 9 can drive the bearing rods to rotate and adjust to meet the needs of welding and testing.

[0060] The beneficial effect of this design is that, through the synergistic effect of multiple rotary drivers, the rotation angle and speed of the load-bearing rod can be accurately controlled, thereby improving the accuracy and efficiency of welding and testing. The setting of the elastic base 54 can play a certain buffering and shock-absorbing role, and can match the driving process of load-bearing rods of different diameters.

[0061] The angle correction assembly 10 includes an adjusting drive rod 57, a second linear drive 58, a sleeve ring 59, a limit seat 60 and a supporting device. The main shaft 9 is connected to the output end of the transverse movement assembly 8 through the supporting device. The second linear drive 58 is hinged to the output end of the transverse movement assembly 8. The third rotation drive 55 is installed on the sleeve ring 59. The sleeve ring 59 is connected to the main shaft 9 through a bearing. The sleeve ring 59 is slidingly connected to the output end of the transverse movement assembly 8 through the limit seat 60. The output end of the second linear drive 58 is connected to one end of the adjusting drive rod 57, and the other end of the adjusting drive rod 57 is hinged to the sleeve ring 59.

[0062] When the angle correction component 10 is working, the second linear driver 58 is activated, and its output end pushes the adjustment drive rod 57. Since the adjustment drive rod 57 is hinged with the sleeve ring 59, the sleeve ring 59 slides under the restriction of the limit seat 60, and at the same time drives the main shaft 9 to deflect, thereby adjusting the angle of the load-bearing rod. The deflection angle of the load-bearing rod can be adjusted accurately and flexibly, and the deflection angle can be accurately adjusted according to the test results, which improves the versatility and adaptability of the equipment. The tight fit between the various components and the stable and reliable operation help to ensure the quality of welding and testing.

[0063] The supporting device includes an arc ring 61, a mounting collar 62 and a fixed support seat 63. The fixed support seat 63 is fixedly mounted on the output end of the transverse movement assembly 8. The mounting collar 62 is fixedly connected to the fixed support seat 63. The arc ring 61 is fixedly mounted on the main shaft 9. The mounting collar 62 is rotatably connected to the arc ring 61 through a bearing.

[0064] When the spindle 9 is working, the arc ring 61 moves with the spindle 9 when it deflects or rotates. The arc ring 61 is connected to the mounting collar 62 by a bearing rotation, so that the spindle 9 can be stably supported and flexibly rotated. The arc ring 61 and the mounting collar 62 form a connection structure similar to a joint bearing. The stability and smoothness of the spindle 9 movement are ensured, friction and wear are reduced, and the service life and working efficiency of the equipment are improved. At the same time, this structure is simple and reliable, and is easy to install and maintain.

[0065] Overall working principle:

[0066] At the beginning of the welding work of the aircraft load-bearing rod, the adaptive adjustment mechanism 7 is first operated. The first rotary driver 44 in the rotary drive assembly 23 is started, and its output end drives the driving gear 43 to start rotating. The driving gear 43 transmits power to the transmission gear 42 through the transmission chain 41, so that the transmission gear 42 rotates accordingly, and the transmission gear 42 in the adaptive adjustment assembly 22 drives the threaded sleeve 46 to rotate synchronously. Under the action of rotation, the threaded sleeve 46 pushes the threaded rod 47 threadedly matched with it to move. The threaded rod 47 then drives the bottom support block 20 to adjust the position. At the same time, the sliding block 26 slides on the central clamping seat 19 under the transmission connection with the bottom support block 20, and drives the welding sliding frame 13 fixedly connected thereto to slide through the transmission connecting rod 25 to adjust the position. This complex and precise process is to adjust the position of the bottom support block 20 in all directions and angles according to the rod diameter of different load-bearing rods, ensure that the rod body 1 of the load-bearing rod is precisely coaxial with the central clamping seat 19, and create a stable and accurate initial condition for the subsequent welding and detection steps.

[0067] When the detection sensor mechanism 6 is working, the rod body 1 and the connecting end 2 start to rotate synchronously. The first linear driver 27 in the detection drive assembly 17 is started, and its output end pushes the push plate 30 to drive the lifting frame 16 to vertically lift along the vertical slide rail 29, so that the detection probe 18 installed on the lifting frame 16 is in close contact with the load-bearing rod, and real-time detection is made on whether the rod body 1 and the connecting end 2 in the load-bearing rod are coaxial, and at the same time, it is accurately determined whether the rotation axis of the connecting end 2 is in an ideal horizontal setting. If the detection result shows that the state of the load-bearing rod is normal, the laser welding head 14 releases a high-energy-density laser beam to perform high-precision and high-quality welding operations on the welding parts of the load-bearing rod.

[0068] If the test result is abnormal, indicating that the load-bearing rod has not reached the standard state of coaxiality or the rotating axis of the connecting end 2 is not horizontal, the angle correction component 10 will respond quickly and start working. The second linear drive 58 is actuated, and its output end pushes the adjustment drive rod 57. The end of the adjustment drive rod 57 hinged to the sleeve ring 59 is subjected to thrust, causing the sleeve ring 59 to slide within the limit seat 60. Since the sleeve ring 59 is connected to the main shaft 9 through a bearing, the main shaft 9 will deflect accordingly. This deflection action will drive the load-bearing rod to adjust its angle and position until the test results show that the load-bearing rod has reached a qualified state. After the adjustment is completed, the welding mechanism 5 starts welding to create a high-quality weld for the load-bearing rod.

[0069] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A high-quality welding device for an aircraft load-bearing rod, the load-bearing rod comprising a rod body (1) and connecting ends (2) located at both ends of the rod body (1), characterized in that: The welding device comprises a central clamping mechanism (3), two groups of end clamping mechanisms (4) each provided and located at both ends of the central clamping mechanism (3), a welding mechanism (5) and a detection sensor mechanism (6); an adaptive adjustment mechanism (7) is provided in the central clamping mechanism (3); the end clamping mechanism (4) comprises a transverse movement component (8) and a main shaft (9) installed on the transverse movement component (8), an angle correction component (10) and a multi-claw chuck (11); the multi-claw chuck (11) is installed on the main shaft (9); the angle correction component (10) is transmission-connected to the main shaft (9); the welding mechanism (5) comprises a first fixing frame (12) located beside the welding point between the rod body (1) and the connecting end (2); A welding slide frame (13) is slidably arranged on the first fixed frame (12), and a laser welding head (14) is installed on the welding slide frame (13). The detection sensor mechanism (6) includes a second fixed frame (15) arranged beside the first fixed frame (12), and the second fixed frame (15) is provided with a vertically sliding lifting frame (16) and a detection drive component (17) for driving the lifting frame (16) to move. The lifting frame (16) is installed with a detection probe (18). The central clamping mechanism (3) includes a central clamping seat (19), a bottom support block (20) installed therein, and a top clamping block (21) slidably installed thereon. The main shaft (9) is coaxially arranged with the central clamping seat (19); The detection drive assembly (17) comprises a first linear drive (27), an articulated rod (28) and a vertical slide rail (29); the first linear drive (27) is horizontally fixedly mounted on the second fixed frame (15); the output direction of the first linear drive (27) is perpendicular to the length direction of the rod body (1); a push plate (30) is provided on the output end of the first linear drive (27); the vertical slide rail (29) is vertically fixedly mounted on the second fixed frame (15); the push plate (30) is horizontally slidably arranged on the second fixed frame (15); one end of the articulated rod (28) is articulated to the push plate (30); the other end of the articulated rod (28) is articulated to the lifting frame (16); the lifting frame (16) is slidably connected to the second fixed frame (15) via the vertical slide rail (29); The detection sensor mechanism (6) further comprises two horizontal sliding frames (31) each provided and symmetrically arranged along the vertical center plane of the lifting frame (16), a locking bolt (32), a lifting plate (33), a pressure sensor (34), a first spring (35) and a second spring (36); the lifting frame (16) is provided with a horizontal locking groove (37); the locking bolt (32) is mounted on the horizontal sliding frame (31); the horizontal sliding frame (31) is slidably arranged on the lifting frame (16); the horizontal sliding frame (31) is connected to the lifting frame (16) via the locking bolt (32); the lifting plate (33) is vertically slidably mounted On the horizontal sliding frame (31), a first spring (35) and a second spring (36) are both arranged between the lifting plate (33) and the horizontal sliding frame (31), one end of the first spring (35) is fixedly connected to the lifting plate (33), and the other end of the first spring (35) is fixedly connected to the horizontal sliding frame (31), a pressure sensor (34) is fixedly mounted on the horizontal sliding frame (31), a detection probe (18) is arranged through the lifting plate (33), one end of the second spring (36) is fixedly connected to the detection probe (18), and the other end of the second spring (36) is fixedly connected to the pressure sensor (34).

2. The high-quality welding equipment for aircraft load-bearing rods according to claim 1, characterized in that: A plurality of bottom support blocks (20) are provided and are all distributed in a ring around the axis of the central clamping seat (19); two top clamping blocks (21) are provided and are symmetrically arranged along the vertical plane of the central clamping seat (19); the adaptive adjustment mechanism (7) comprises an adaptive adjustment component (22) for adjusting the position of the bottom support block (20); a rotation drive component (23) for driving the adaptive adjustment component (22) to work; and a transmission component (24) for driving the welding slide frame (13) to move; the transmission component (24) comprises a transmission connecting rod (25) and a sliding block (26); the sliding block (26) is slidably mounted on the central clamping seat (19); the sliding block (26) is transmission-connected to one of the bottom support blocks (20); one end of the transmission connecting rod (25) is fixedly connected to the welding slide frame (13); and the other end of the transmission connecting rod (25) is fixedly connected to the sliding block (26).

3. The high-quality welding equipment for aircraft load-bearing rods according to claim 2, characterized in that: The rotary drive assembly (23) comprises a positioning rotary column (38), a limiting rotary column (39), an arc-shaped limiting plate (40), a transmission chain (41), a transmission gear (42), a driving gear (43) and a first rotary driver (44). The positioning rotary column (38) and the limiting rotary column (39) are each provided with two, the arc-shaped limiting plate (40) is mounted on the central clamping seat (19) and is coaxially arranged with the central clamping seat (19), the arc-shaped limiting plate (40) is vertically arranged, the tops of both ends of the arc-shaped limiting plate (40) are fixedly connected to the top of the central clamping seat (19), the arc-shaped limiting plate (40) is located on one side of the adaptive adjustment assembly (22) close to the end clamping mechanism (4), and the two arc-shaped limiting plates (40) are arranged on the side of the adaptive adjustment assembly (22) close to the end clamping mechanism (4). A positioning rotating column (38) is installed in two ends of the arc-shaped limiting plate (40), a first rotating driver (44) is fixedly installed on the central clamping seat (19), a driving gear (43) is fixedly installed on the output end of the first rotating driver (44), two limiting rotating columns (39) are installed on both sides of the driving gear (43), a transmission chain (41) is sleeved on the positioning rotating column (38), the limiting rotating column (39) and the arc-shaped limiting plate (40), a plurality of transmission gears (42) are provided, each adaptive adjustment component (22) is connected to a transmission gear (42), and the transmission gear (42) and the driving gear (43) are both meshed with the transmission chain (41).

4. The high-quality welding equipment for aircraft load-bearing rods according to claim 3, characterized in that: The adaptive adjustment component (22) comprises a mounting seat (45), a threaded sleeve (46) and a threaded rod (47); a telescopic limit rod (48) is provided on the bottom support block (20); one end of the telescopic limit rod (48) is fixedly connected to the bottom support block (20); the other end of the telescopic limit rod (48) is fixedly connected to the side wall of the center clamping seat (19); the mounting seat (45) is fixedly mounted on the center clamping seat (19); the threaded sleeve (46) is rotatably mounted on the mounting seat (45); the threaded rod (47) points to the axis of the center clamping seat (19); the threaded rod (47) is threadedly connected to the threaded sleeve (46); the transmission gear (42) is fixedly connected to the threaded sleeve (46); and one end of the threaded rod (47) close to the rod body (1) is fixedly connected to the bottom support block (20).

5. The high-quality welding equipment for aircraft bearing rods according to claim 1, characterized in that: One end of the bottom support block (20) close to the rod body (1) is axially connected to a first abutting roller (49), and one end of the top clamping block (21) close to the rod body (1) is axially connected to a second abutting roller (50).

6. The high-quality welding equipment for aircraft load-bearing rods according to claim 4, characterized in that: The welding device further comprises a rotary drive mechanism, which comprises a second rotary drive (51), a bearing seat (52), a fitting transmission wheel (53), an elastic base (54) and a third rotary drive (55), wherein the elastic base (54) is fixedly mounted on the central clamping seat (19), the second rotary drive (51) is fixedly mounted on the elastic base (54), the bearing seat (52) is fixedly mounted on the elastic base (54), the fitting transmission wheel (53) is axially connected to the bearing seat (52), the output end of the second rotary drive (51) is fixedly connected to the fitting transmission wheel (53), the axial direction of the fitting transmission wheel (53) is consistent with the axial direction of the rod body (1), and two third rotary drives (55) are provided and are respectively located on the two end clamping mechanisms (4), and the output end of the third rotary drive (55) is transmission-connected to an end of the main shaft (9) away from the central clamping seat (19).

7. The high-quality welding equipment for aircraft bearing rods according to claim 6, characterized in that: The angle correction assembly (10) comprises an adjusting drive rod (57), a second linear drive (58), a sleeve ring (59), a limit seat (60) and a support device, wherein the support device is arranged on the output end of the transverse movement assembly (8), the main shaft (9) is connected to the output end of the transverse movement assembly (8) through the support device, the second linear drive (58) is hingedly arranged with the output end of the transverse movement assembly (8), the third rotary drive (55) is mounted on the sleeve ring (59), the sleeve ring (59) is connected to the main shaft (9) through a bearing, the sleeve ring (59) is slidably connected to the output end of the transverse movement assembly (8) through the limit seat (60), the output end of the second linear drive (58) is connected to one end of the adjusting drive rod (57), and the other end of the adjusting drive rod (57) is hingedly connected to the sleeve ring (59).

8. The high-quality welding equipment for aircraft load-bearing rods according to claim 7, characterized in that: The supporting device comprises an arc ring (61), a mounting collar (62) and a fixed support seat (63); the fixed support seat (63) is fixedly mounted on the output end of the transverse movement assembly (8); the mounting collar (62) is fixedly connected to the fixed support seat (63); the arc ring (61) is fixedly mounted on the main shaft (9); and the mounting collar (62) and the arc ring (61) are rotatably connected via a bearing.

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