A butt joint tool for welding aerospace tail fins

Abstract

A docking tool for aerospace tail fin welding belongs to the field of aerospace tail fin welding technology. In order to solve the problems of low efficiency of existing tool positioning and welding, difficulty in ensuring welding positioning accuracy, poor equipment versatility, insufficient welding process control capability, and lack of welding gun distance and path correction capability, the invention includes a base frame, a slide rail fixedly connected to the base frame, a slide slide slidably connected to the slide rail, a placement seat fixedly connected to the slide slide, a clamping assembly provided on the placement seat, a fixed frame fixedly connected to the base frame, a guide rod fixedly connected to the fixed frame, a slide slide slidably connected to the guide rod, a connecting frame fixedly connected to the slide seat, an arc frame installed on the end side of the connecting frame, and a welding mechanism installed on the arc frame. The present invention can realize rapid and precise positioning, clamping and automatic docking of tail fins, adaptive adjustment to adapt to multiple models, intelligent monitoring and correction, and all-round guarantee of welding quality and efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of aerospace tail fin welding, in particular to a butt joint tool for aerospace tail fin welding. Background Art

[0002] A space shuttle is a heavier-than-air aircraft with wings and one or more engines that can fly in the atmosphere under its own power. In order to improve flight stability, tail panels are usually installed at the tail of the aircraft. Most tail panels include horizontal tail panels and vertical tail panels, and a few use V-shaped tail panels. As the core component of the aircraft's attitude control and aerodynamic performance, the welding quality of the aerospace tail panel is directly related to the success or failure of the space mission.

[0003] Currently, most tail fin welding on the market is performed by driving the welding gun along a preset path. However, the high-temperature welding slag generated during the welding of aerospace tail fins can easily invade the tooling transmission mechanism. The invading welding slag will form a mechanical blockage, interfering with the normal operation of the transmission components, causing the actual movement trajectory of the welding gun to deviate from the preset path, causing the welding position to be misaligned, resulting in weld quality defects, causing the tail fin to be directly scrapped, and significantly reducing the product qualification rate. In addition, as the high frequency of welding operations continues, the core components of the tooling will inevitably wear out. This wear will change the initial set distance between the welding gun and the tail fin, resulting in the welding distance being too close, causing the welding wire to overheat and melt, and the welding gun nozzle to stick to slag, or the distance being too far, causing problems such as reduced arc stability, welding slag splashing, and unfused welds, seriously affecting the stability of welding quality.

[0004] In view of the above problems, a butt joint tooling for aerospace tail fin welding processing is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a docking tool for aerospace tail fin welding processing, and to use this device to work, thereby solving the problems raised in the above background, such as low efficiency of existing tool positioning and welding, difficulty in ensuring welding positioning accuracy, poor equipment versatility, insufficient welding process control capability and lack of welding gun path correction capability.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a docking tool for welding aerospace tail fins, comprising a base frame, a slide rail fixedly connected to the base frame, a slide plate slidably connected to the slide rail, a docking assembly mounted on the base frame, a placement seat fixedly connected to the slide plate, a clamping assembly provided on the placement seat, and a tail fin body clamped and mounted on the placement seat via the clamping assembly;

[0007] The base frame is fixedly connected to a fixed frame, the fixed frame is fixedly connected to a guide rod, the guide rod is slidably connected to a slide seat, a driving part is installed on the fixed frame, and the slide seat is symmetrically provided with two, a connecting frame is fixedly connected between the two slide seats, an arc frame is installed on the end side of the connecting frame, a welding mechanism is installed on the arc frame, and the welding mechanism includes a movable seat slidably connected to the arc frame, a concave frame is fixedly connected to the movable seat, a mounting plate is fixedly connected to the concave frame, an infrared scanner is installed on the mounting plate, a groove is provided on the mounting plate, a cylinder is slidably connected in the groove, a screw is lifted and slid in the cylinder, and a welding gun is fixedly connected to the bottom of the screw.

[0008] Furthermore, the docking assembly includes an electric push rod fixedly connected to the base frame, the electric push rod is hinged to the skateboard, and two skateboards are symmetrically provided. Connecting rods are hinged on the two skateboards, and rotating plates are hinged on the end sides of the connecting rods. A pillar is rotatably connected inside the rotating plate, and the pillar is fixedly connected to the base frame.

[0009] Furthermore, the clamping assembly includes a double-axis cylinder fixedly connected to the placement seat, the output ends on both sides of the double-axis cylinder are slidably connected with piston rods, the end sides of the piston rods are fixedly connected with mounting frames, the mounting frames are fixedly connected with connecting blocks, the connecting blocks are hinged with clamping frames, the clamping frames are installed with clamping wheels, and the clamping wheels are in contact with the side walls of the tail wing body.

[0010] Furthermore, a notch is provided on the placement seat, and the mounting frame is embedded and slidably mounted in the notch.

[0011] Furthermore, the driving member includes a motor 1 fixedly connected to the side wall of the fixing frame, the output end of the motor 1 is fixedly connected to a screw rod, and the slide is threadedly connected to the screw rod.

[0012] Furthermore, both the inner and outer walls of the arc-shaped frame are provided with arc-shaped grooves, and the outer wall of the arc-shaped frame is provided with a plurality of tooth grooves.

[0013] Furthermore, the movable seat is fixedly connected to motor 2, the output end of motor 2 is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to the movable seat, the rotating shaft is fixedly sleeved with gear 1, the gear 1 is engaged with the tooth groove, and multiple fixed shafts are installed on the movable seat, and the multiple fixed shafts are rotatably connected to limiting wheels, and the limiting wheels slide in contact with the arc groove.

[0014] Furthermore, the mounting plate is fixedly connected with an electric push column 1 and an electric push column 2, the output end of the electric push column 1 is fixedly connected with a fixed block 1, the output end of the electric push column 2 is fixedly connected with a fixed block 2, the end side of the fixed block 1 is fixedly connected with a limiting plate 1, the end side of the fixed block 2 is fixedly connected with a limiting plate 2, the bottom surface of the limiting plate 1 is fixedly connected with a tooth plate 1, and the bottom surface of the limiting plate 2 is fixedly connected with a tooth plate 2.

[0015] Furthermore, the bottom of the cylinder is rotatably connected to gear 2, the gear 2 is threadedly connected to the screw, the tooth plate 1 and the tooth plate 2 are both engaged with the gear 2, and an anti-fall plate is fixedly sleeved on the outside of the cylinder, and the anti-fall plate slides in contact with the mounting plate.

[0016] Furthermore, two limiting grooves are symmetrically provided on the mounting plate, and the limiting plate 1 and the limiting plate 2 are slidably connected to the two limiting grooves respectively.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention can quickly complete the precise positioning and clamping of the tail wing piece, cooperate with the automated docking process, greatly improve the flow efficiency of the welding process, and effectively eliminate the positioning deviation caused by manual operation; the adaptive fitting design of the clamping wheel and the tail wing piece surface, combined with the center positioning function of the placement seat, can limit the position offset of the tail wing piece during welding to an effective range, ensure the position accuracy of the weld seam, and improve the consistency of welding quality; the clamping angle and force can be automatically adjusted according to the different curved surface contours of the tail wing piece body, and it is compatible with the welding of tail wing pieces of various specifications and models without replacing hardware, and is adapted to the assembly requirements of tail wing pieces of different sizes, and the equipment has strong versatility; whether it is the initial welding distance setting or the wear during the welding process The system can automatically adjust the height of the welding gun accurately according to the distance change caused by the distance deviation, effectively avoiding problems such as wire melting, welding gun slag sticking, arc instability, etc. caused by distance deviation, and ensuring the stability and reliability of welding quality; the onboard infrared scanner monitors the position of the welding gun in real time. Once it detects the path deviation caused by welding slag blockage and other reasons, it can quickly drive the welding gun to reset quickly, ensuring the accuracy of the weld position, preventing the tail fin from being damaged due to welding misalignment, and greatly improving the product qualification rate; the welding gun can flexibly switch between arc trajectory and straight track to realize fully automated welding of the top, side and bottom surfaces of the tail fin, ensuring that the welding gun remains stable in complex spatial movement, and meeting the multi-faceted welding needs of aerospace tail fins. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall side structure of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the docking assembly of the present invention;

[0022] Figure 4 This is a schematic diagram of the connection and installation structure of the clamping assembly and the placement seat of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the clamping assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the welding mechanism and arc frame installation structure of the present invention;

[0025] Figure 7 For the present invention Figure 6 Schematic diagram of the structure from above;

[0026] Figure 8 It is a structural schematic diagram of the welding mechanism of the present invention;

[0027] Figure 9 For the present invention Figure 8 Schematic diagram of the structure from above;

[0028] Figure 10 It is a structural schematic diagram of some components of the welding mechanism of the present invention.

[0029] In the figure: 1. base frame; 2. slide rail; 3. slide plate; 4. placement seat; 41. notch; 5. docking assembly; 51. electric push rod; 52. connecting rod; 53. rotating plate; 54. pillar; 6. tail piece body; 7. clamping assembly; 71. dual-axis cylinder; 72. piston rod; 73. mounting frame; 74. connecting block; 75. clamping frame; 76. clamping wheel; 8. fixing frame; 9. guide rod; 10. slide seat; 11. driving part; 110. motor 1; 111. screw rod; 12. connecting frame; 13. arc frame; 131. arc groove; 132. tooth groove; 14. welding mechanism ;141. Movable seat;142. Motor 2;143. Rotating shaft;144. Gear 1;145. Fixed shaft;146. Limiting wheel;147. Concave frame;148. Mounting plate;481. Limiting groove;482. Groove;483. Electric push column 1;484. Fixed block 1;485. Limiting plate 1;486. Tooth plate 1;487. Electric push column 2;488. Fixed block 2;489. Limiting plate 2;890. Tooth plate 2;891. Gear 2;892. Cylinder;893. Anti-fall plate;894. Screw;895. Welding gun;149. Infrared scanner. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In order to solve the technical problem that when the tail wing is butt-welded, the tail wing is easily displaced due to its own shape, resulting in welding deviation and thus reducing the welding quality of the tail wing. Figure 1-Figure 5 As shown, the following preferred technical solutions are provided:

[0032] A docking tool for welding aerospace tail fins includes a base frame 1, a slide rail 2 is fixedly connected to the base frame 1, a slide rail 3 is slidably connected to the slide rail 2, a docking assembly 5 is installed on the base frame 1 for docking two tail fin bodies 6, a placement seat 4 is fixedly connected to the slide rail 3, a clamping assembly 7 is provided on the placement seat 4 for clamping and fixing the tail fin body 6, and the tail fin body 6 is clamped and installed on the placement seat 4 by the clamping assembly 7.

[0033] The docking assembly 5 includes an electric push rod 51 fixedly connected to the base frame 1. The electric push rod 51 is hinged to the slide plate 3. There are two symmetrical slide plates 3, each hinged to a connecting rod 52. The end of the connecting rod 52 is hinged to a rotating plate 53. The rotating plate 53 is internally connected to a support 54 that is fixedly connected to the base frame 1. This design ensures smooth and accurate docking of the tail wing body 6, effectively avoiding docking deviation caused by uneven spacing adjustment.

[0034] The locking cam 75 of the locking cam 76 is fixed on the locking cam 76, and the locking cam 76 is fixed on the locking cam 76, so that the locking cam 76 can move freely in the locking cam 76, thereby preventing the locking cam 76 from sliding into the locking cam 76.

[0035] Specifically, such as Figure 1-Figure 3As shown, when the tooling is used to butt-weld the tail wing body 6, the electric push rod 51 is first started. Since the slide plate 3 is hinged to the electric push rod 51, when the electric push rod 51 is extended, the slide plate 3 on its end side will slide outward along the slide rail 2. Since the two slide plates 3 are hinged to the rotating plate 53 through the connecting rod 52, when one side of the slide plate 3 moves, the connecting rod 52 rotates synchronously therewith, thereby driving the rotating plate 53 to rotate around the pillar 54. When the rotating plate 53 rotates, the slide plate 3 hinged at the other end will also move synchronously horizontally along the slide rail 2, and finally the two slide plates 3 drive the top fixed placement seat 4 to separate from each other. After the placement seat 4 is completely separated, the electric push rod 51 is turned off.

[0036] When the locking cam 75 is in the closed position, the locking cam 73 is in the closed position, and the locking cam 73 is in the closed position, so that the support cam 73 is in the closed position, and the support cam 73 is in the open position, so that the support cam 73 is in the closed position, and the support cam 73 is in the open position, so that the support cam 73 is in the closed position, and the support cam 73 is in the closed position, The clamping frames 75 on both sides move inward synchronously to ensure that the tail fin body 6 is stably clamped in the center position, preparing for subsequent welding operations.

[0037] After the tail wing piece body 6 is firmly clamped, the electric push rod 51 is started again. The electric push rod 51 drives the slide plate 3 to slide back along the slide rail 2. As one side of the slide plate 3 moves back, the connecting rod 52 rotates and drives the rotating plate 53 to rotate around the support 54, so that the slide plates 3 on both sides slide toward each other along the slide rail 2. During the continuous movement of the slide plate 3, the top placement seat 4 will drive the clamped tail wing piece body 6 to dock until the two tail wing piece bodies 6 are accurately fitted, and then the subsequent welding process can be carried out.

[0038] Through the above-mentioned arrangement, the tail wing piece body 6 can be firmly clamped during the welding process, which avoids manual adjustment of the spacing, thereby improving the operating efficiency and reducing the risk of deviation in the tail wing piece docking due to spacing error. At the same time, it can ensure that when welding different types of tail wing pieces, they can all fit closely with the curved surface structures of different tail wing piece bodies 6, preventing displacement due to loosening during the welding process, and further offsetting the thermal stress and mechanical vibration generated during welding, thereby ensuring the welding quality and the accuracy of the tail wing piece finished product.

[0039] In order to solve the technical problems that the welding gun 895 is mechanically fatigued and worn due to long-term use with the arc frame 13, resulting in inaccurate welding position, and foreign matter blocks and interferes with the preset movement path of the welding gun 895, resulting in welding displacement offset and inaccurate welding distance, such as Figure 1-Figure 2 , Figures 6-10 As shown, the following preferred technical solutions are provided:

[0040] A fixed frame 8 is fixedly connected to the base frame 1, which is fixedly connected to a guide rod 9. A slide 10 is slidably connected to the guide rod 9. A driving member 11 is mounted on the fixed frame 8. Two slides 10 are symmetrically provided. A connecting frame 12 is fixedly connected between the two slides 10. An arc frame 13 is mounted on the end of the connecting frame 12. A welding mechanism 14 is mounted on the arc frame 13. The welding mechanism 14 includes a movable seat 141 slidably connected to the arc frame 13. A concave frame 147 is fixedly connected to the movable seat 141. The concave frame 147 is provided with a through hole to facilitate the raising and lowering of the screw 894, thereby avoiding obstruction of the raising and lowering adjustment of the screw 894. A mounting plate 148 is fixedly connected to the concave frame 147. An infrared scanner 149 is mounted on the mounting plate 148. The infrared scanner 149 can scan the welding position and surface contour of the tail fin in real time, and the acquired data is fed back to the control system to provide data support for the precise positioning of the welding gun 895. Mounting plate 148 has a groove 482, into which a cylinder 892 is slidably connected. A screw 894 slides upward and downward within cylinder 892. It should be noted that when screw 894 is raised or lowered, the rotation direction of gear 2 891 can be adjusted as needed. A welding gun 895 is fixedly connected to the bottom of screw 894.

[0041] The driving member 11 includes a motor 110 fixedly connected to the side wall of the fixed frame 8, the output end of the motor 110 is fixedly connected to the screw 111, the slide 10 is threadedly connected to the screw 111, the inner and outer walls of the arc frame 13 are both provided with arc grooves 131, and the outer wall of the arc frame 13 is provided with multiple tooth grooves 132.

[0042] The movable seat 141 is fixedly connected to a motor 2 142, and the output end of the motor 2 142 is fixedly connected to a rotating shaft 143, and the rotating shaft 143 is rotatably connected to the movable seat 141. A gear 144 is fixedly sleeved on the rotating shaft 143, and the gear 144 is engaged with the tooth groove 132. A plurality of fixed shafts 145 are installed on the movable seat 141, and the plurality of fixed shafts 145 are rotatably connected to a limiting wheel 146, and the limiting wheel 146 slides in contact with the arc groove 131.

[0043] An electric push column 483 and an electric push column 487 are fixedly connected to the mounting plate 148, the output end of the electric push column 483 is fixedly connected to a fixed block 484, the output end of the electric push column 487 is fixedly connected to a fixed block 488, the end side of the fixed block 484 is fixedly connected to a limiting plate 485, the end side of the fixed block 488 is fixedly connected to a limiting plate 489, the bottom surface of the limiting plate 485 is fixedly connected to a tooth plate 486, and the bottom surface of the limiting plate 489 is fixedly connected to a tooth plate 2 890.

[0044] The bottom of the cylinder 892 is rotatably connected to the gear 2 891, and the gear 2 891 is threadedly connected to the screw 894. The tooth plate 1 486 and the tooth plate 2 890 are meshed with the gear 2 891. The outside of the cylinder 892 is fixedly sleeved with an anti-fall plate 893, and the anti-fall plate 893 slides in contact with the mounting plate 148. Two limit grooves 481 are symmetrically provided on the mounting plate 148, and the limit plate 1 485 and the limit plate 2 489 are respectively slidably connected to the two limit grooves 481.

[0045] Specifically, after the two tail wing body 6 are butt-jointed, when welding is required, the welding distance between the welding gun 895 and the tail wing body 6 is adjusted according to the demand. When adjusting, the electric push column 1 483 is extended and the electric push column 2 487 is retracted. When the electric push column 1 483 is extended, the fixed block 1 484 on the end side thereof synchronously drives the limit plate 1 485 fixed on the end side to move forward along the limit groove 481. When the electric push column 2 487 is retracted, the fixed block 2 488 on the end side thereof synchronously drives the limit plate 2 489 fixed on the end side to move backward along the limit groove 481, so that the tooth plate 1 486 on the limit plate 1 485 and the tooth plate 2 890 on the limit plate 2 489 are horizontally moved in different directions. Movement, since tooth plate 1 486 and tooth plate 2 890 are meshed with gear 2 891, as tooth plate 1 486 and tooth plate 2 890 move in opposite directions synchronously, gear 2 891 will rotate around cylinder 892 under the action of meshing, since gear 2 891 is threadedly connected to screw 894, and there is a movable space inside cylinder 892 for screw 894 to move up and down, therefore, when gear 2 891 rotates and cooperates with the thread, screw 894 will move up and down inside cylinder 892 under the action of the thread, and the welding gun 895 fixed to the screw 894 will move up and down as needed, so that the welding gun 895 can adjust its welding distance according to the thickness of the tail wing body 6.

[0046] After adjusting to the appropriate distance, start motor 110 to drive the screw rod 111 to rotate. Since the slide 10 is threadedly connected to the screw rod 111, and the slide 10 is slidingly connected to the guide rod 9, when the screw rod 111 rotates, the slide 10 is threadedly engaged with it. Under the action of the thread, the rotational motion of the screw rod 111 will be converted into horizontal motion of the slide 10, so that the slide 10 moves horizontally along the guide rod 9. Since the slide 10 is fixedly connected to the connecting frame 12 and the arc frame 13, the arc frame 13 will move horizontally synchronously, and the welding gun 895 installed on the arc frame 13 will synchronously perform welding along the docking position of the tail wing body 6.

[0047] During welding, Figures 8-10 As shown, when the tooling is used for long-term welding, the sliding between the welding mechanism 14 and the arc frame 13 will cause wear. Due to wear, the welding distance between the welding gun 895 and the tail wing body 6 will be shortened or extended. Once the welding distance changes, it will affect the butt welding performance of the tail wing body 6. During the entire welding process, the infrared scanner 149 carried by the system continuously scans and monitors. Once it detects that the welding distance exceeds the preset threshold, it immediately sends a control instruction to the electric push column 1 483 and the electric push column 2 487. The electric push column 1 483 and the electric push column 2 487 immediately make targeted adjustments after receiving the electrical signal.

[0048] During adjustment, the electric push column 1 483 is extended and the electric push column 2 487 is retracted. When the electric push column 1 483 is extended, the fixed block 1 484 on its end side synchronously drives the limit plate 1 485 fixed on the end side to move forward along the limit groove 481. When the electric push column 2 487 is retracted, the fixed block 2 488 on its end side synchronously drives the limit plate 2 489 fixed on the end side to move backward along the limit groove 481, so that the tooth plate 1 486 on the limit plate 1 485 and the tooth plate 2 890 on the limit plate 2 489 move horizontally in different directions. Since the tooth plate 1 486 and the tooth plate 2 890 are meshed with the gear 2 891, as the tooth plate 1 486 and the tooth plate 2 890 move in opposite directions synchronously, the gear 2 891 will rotate around the cylinder 8 under the meshing action. 92 rotates. Since gear 2 891 is threadedly connected to screw 894, a cavity is provided in cylinder 892 for facilitating the lifting and lowering of screw 894. Therefore, when gear 2 891 rotates and cooperates with the thread, screw 894 will move up and down in cylinder 892 under the action of the thread, and welding gun 895 fixedly mounted on screw 894 will lift and lower as needed, so that welding gun 895 can shorten or extend its welding distance according to the thickness of tail fin body 6, so that during welding, there will be no overheating and melting of welding wire caused by too close welding distance, no slag sticking to the nozzle of welding gun 895, no reduction in arc stability caused by too long welding distance, slag splashing, incomplete welding, and pores generated by oxidation of weld seam.

[0049] It should be noted that welding slag will be generated during the welding process, and the generated welding slag will be cleaned manually regularly to avoid the welding slag getting stuck in the arc frame 13, causing the welding mechanism 14 to be unable to move normally according to the preset path for welding, and reduce the occurrence of stagnation. However, during the welding process, the welding slag will splash, and if you are not careful, the welding slag will get stuck in the arc frame 13.

[0050] If during the welding process, welding slag splashes accidentally get stuck on the arc frame 13, it will block and interfere with the preset movement path of the welding gun 895. At this time, the welding position of the welding gun 895 will change, and the weld on the tail wing body 6 will also change accordingly, causing the welding position to be misaligned, thereby causing damage to the tail wing body 6 and affecting its use.

[0051] Therefore, during the welding process, if the above problems occur, such as Figure 7-10 As shown, during the welding process, if the welding path of the welding gun 895 is found to be offset and distorted, the infrared scanner 149 will immediately scan and sense it, and then convert the scanned data into an electrical signal and transmit it to the electric push column 1 483 and the electric push column 2 487. Then the electric push column 1 483 and the electric push column 2 487 will start immediately after receiving the electrical signal. Since the electric push column 1 483, the fixed block 1 484, the limit plate 1 485 and the tooth plate 1 486 are fixedly connected, and the electric push column 2 487, the fixed block 2 488, the limit plate 2 489 and the tooth plate 2 890 are fixedly connected, the electric push column 1 483 and the electric push column 2 487 will synchronously drive the fixed block 1 484 and the fixed block 2 488 to move horizontally in the same direction after starting, and the limit plate 1 48 5 and the limit plate 2 489 will also move horizontally along the limit groove 481 synchronously, and the tooth plate 1 486 and the tooth plate 2 890 at the bottom will also move horizontally synchronously. Since the gear 2 891 is meshed with the tooth plate 1 486 and the tooth plate 2 890, the horizontal movement of the tooth plate 1 486 and the tooth plate 2 890 will cause the gear 2 891 to move horizontally synchronously, so that the cylinder 892 and the anti-fall plate 893 on the gear 2 891 move horizontally along the groove 482 synchronously, and the anti-fall plate 893 can only slide but not rotate in the groove 482. The welding gun 895 installed by the screw 894 below the gear 2 891 moves horizontally synchronously, so that the welding position of the welding gun 895 changes. Through such a design, the welding gun 895 It can dynamically adjust the weld position deviation detected by the infrared scanner 149 in real time and correct the offset in time. During the welding process, this automatic adjustment function can effectively resist interference factors such as welding slag blockage and prevent the welding gun 895 from deviating from the preset movement path, thereby ensuring that the tail wing body 6 remains accurately aligned during butt welding and improving the welding quality.

[0052] When the top surface welding of the tail wing body 6 is completed, the side and bottom surfaces of the tail wing body 6 need to be welded. Therefore, after the welding is completed, when the welding position of the welding gun 895 needs to be adjusted, the motor 2 142 on the movable seat 141 is started. When the motor 2 142 on the movable seat 141 is started, the rotating shaft 143 at its output end will drive the gear 1 144 to rotate. Since the outer wall of the arc frame 13 is provided with a plurality of tooth grooves 132, and the gear 1 144 is meshed with the tooth grooves 132 on the outer wall of the arc frame 13, under the action of meshing, the rotation of the gear 144 will be converted into the sliding movement of the movable seat 141 along the arc frame 13, so that the movable seat 141 can move along the arc frame 13. The arc frame 13 is slid so that the welding gun 895 can weld the side of the tail wing body 6. When the side welding is completed, the movable seat 141 continues to be driven to move along the arc frame 13. When the movable seat 141 drives the welding gun 895 to move to the bottom surface of the tail wing body 6, the drive is stopped, and then the motor 110 is started. The motor 110 drives the screw rod 111 to rotate, and the slide 10 threaded with the screw rod 111 synchronously drives the connecting frame 12 and the arc frame 13 to move horizontally. The welding gun 895 installed on the arc frame 13 moves horizontally synchronously and then welds the bottom surface of the tail wing body 6, so that the tail wing body 6 is fully welded.

[0053] At the same time, since the limiting wheel 146 on the movable seat 141 fits and slides with the arc groove 131 on the inner and outer walls of the arc frame 13, the setting of the arc groove 131 not only limits the movement trajectory of the movable seat 141 so that it can only slide along the arc frame 13, but also plays a role of stable support and guidance, ensuring that the movable seat 141 remains stable during the arc movement, thereby realizing the precise movement of the welding gun 895 on the arc trajectory, adapting to the welding requirements of different parts of the tail wing body 6.

[0054] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0055] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A docking tool for welding aerospace tail fins, comprising a base frame (1), characterized in that: The base frame (1) is fixedly connected to a slide rail (2), the slide rail (2) is slidably connected to a slide plate (3), the base frame (1) is installed with a docking assembly (5), the slide plate (3) is fixedly connected to a placement seat (4), the placement seat (4) is provided with a clamping assembly (7), and the placement seat (4) is clamped and installed with a tail wing body (6) via the clamping assembly (7); The base frame (1) is fixedly connected to a fixing frame (8), a guide rod (9) is fixedly connected to the fixing frame (8), a slide seat (10) is slidably connected to the guide rod (9), a driving member (11) is installed on the fixing frame (8), two slide seats (10) are symmetrically provided, a connecting frame (12) is fixedly connected between the two slide seats (10), an arc frame (13) is installed on the end side of the connecting frame (12), a welding mechanism (14) is installed on the arc frame (13), and the welding mechanism (14) includes a connecting frame (12) slidably connected to the arc frame (13). A movable seat (141) on a concave frame (13) is fixedly connected to the movable seat (141), a concave frame (147) is fixedly connected to the concave frame (147), an infrared scanner (149) is installed on the mounting plate (148), a groove (482) is formed on the mounting plate (148), a cylinder (892) is slidably connected in the groove (482), a screw (894) is lifted and slidably in the cylinder (892), and a welding gun (895) is fixedly connected to the bottom of the screw (894); The inner and outer walls of the arc frame (13) are both provided with arc grooves (131), and the outer wall of the arc frame (13) is provided with a plurality of tooth grooves (132); The movable seat (141) is fixedly connected to a second motor (142), and an output end of the second motor (142) is fixedly connected to a rotating shaft (143). The rotating shaft (143) is rotatably connected to the movable seat (141). A gear (144) is fixedly sleeved on the rotating shaft (143). The gear (144) and the tooth groove (132) are meshed with each other. A plurality of fixed shafts (145) are installed on the movable seat (141). The plurality of fixed shafts (145) are rotatably connected to a limiting wheel (146). The limiting wheel (146) is fitted and slidably engaged with the arc groove (131). The mounting plate (148) is fixedly connected to an electric push column 1 (483) and an electric push column 2 (487); the output end of the electric push column 1 (483) is fixedly connected to a fixed block 1 (484); the output end of the electric push column 2 (487) is fixedly connected to a fixed block 2 (488); the end side of the fixed block 1 (484) is fixedly connected to a limiting plate 1 (485); the end side of the fixed block 2 (488) is fixedly connected to a limiting plate 2 (489); the bottom surface of the limiting plate 1 (485) is fixedly connected to a tooth plate 1 (486); the bottom surface of the limiting plate 2 (489) is fixedly connected to a tooth plate 2 (890); The bottom of the cylinder (892) is rotatably connected to a second gear (891), the second gear (891) is threadedly connected to the screw (894), the first gear plate (486) and the second gear plate (890) are meshed with the second gear (891), and the outside of the cylinder (892) is fixedly sleeved with an anti-fall plate (893), and the anti-fall plate (893) is fitted and slidable with the mounting plate (148); Two limiting grooves (481) are symmetrically provided on the mounting plate (148), and the limiting plate 1 (485) and the limiting plate 2 (489) are slidably connected to the two limiting grooves (481), respectively.

2. The aerospace tail fin welding tool according to claim 1, characterized in that: The docking assembly (5) includes an electric push rod (51) fixedly connected to the base frame (1), the electric push rod (51) is hinged to the slide plate (3), and two slide plates (3) are symmetrically provided. Connecting rods (52) are hinged on the two slide plates (3), and the end sides of the connecting rods (52) are hinged to a rotating plate (53). The rotating plate (53) is rotatably connected to a pillar (54) inside, and the pillar (54) is fixedly connected to the base frame (1).

3. The aerospace tail fin welding tool according to claim 1, characterized in that: The clamping assembly (7) includes a double-axis cylinder (71) fixedly connected to the placement seat (4), the output ends of both sides of the double-axis cylinder (71) are slidably connected to piston rods (72), the ends of the piston rods (72) are fixedly connected to mounting frames (73), the mounting frames (73) are fixedly connected to connecting blocks (74), the connecting blocks (74) are hinged to clamping frames (75), the clamping frames (75) are mounted with clamping wheels (76), and the clamping wheels (76) are in contact with the side walls of the tail wing body (6).

4. The aerospace tail fin welding tool according to claim 3, characterized in that: A notch (41) is provided on the placement seat (4), and the mounting frame (73) is embedded and slidably mounted in the notch (41).

5. The aerospace tail fin welding tool according to claim 1, characterized in that: The driving member (11) includes a motor 1 (110) fixedly connected to the side wall of the fixing frame (8), a screw rod (111) is fixedly connected to the output end of the motor 1 (110), and the slide (10) is threadedly connected to the screw rod (111).

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