CN120347463A

CN120347463A - Butt joint tool for welding and processing aerospace tail fin

Info

Publication number: CN120347463A
Application number: CN202510817005.1A
Authority: CN
Inventors: 周峰; 李朝蓬; 陈国营
Original assignee: Beijing Axicomb New Material Co ltd
Current assignee: Beijing Axicomb New Material Co ltd
Priority date: 2025-06-18
Filing date: 2025-06-18
Publication date: 2025-07-22
Anticipated expiration: 2045-06-18
Also published as: CN120347463B

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 tooling positioning and welding, difficulty in ensuring welding positioning accuracy, poor equipment versatility, insufficient welding process control ability, and lack of welding gun distance and path correction ability, the invention includes a base frame, a slide rail is fixedly connected to the base frame, a slide rail is slidably connected to a slide plate, a placement seat is fixedly connected to the slide plate, a clamping assembly is provided on the placement seat, a fixed frame is fixedly connected to the base frame, a guide rod is fixedly connected to the fixed frame, a slide seat is slidably connected to the guide rod, a connecting frame is fixedly connected to the slide seat, an arc frame is installed on the end side of the connecting frame, and a welding mechanism is installed on the arc frame. The present invention can realize rapid and accurate 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

Butt joint tool for welding and processing aerospace tail fin

Technical Field

The invention relates to the technical field of welding of aerospace tail sheets, in particular to a butt joint tool for welding and processing of aerospace tail sheets.

Background

In order to improve the flying stability, the tail An Zhuangwei wings of the aeroplane are usually arranged, most tail wings comprise horizontal tail wings and vertical tail wings, and a few V-shaped tail wings are adopted, and the welding quality of the tail wings is directly related to the success or failure of a spaceflight task as a core component of the attitude control and aerodynamic performance of the aeroplane.

At present, the tail fin welding is carried out on the market by driving a welding gun to carry out movable welding along a preset path, but high Wen Hanzha generated in the welding process of the aerospace tail fin is extremely easy to invade a tool transmission mechanism, the invaded welding slag can form mechanical retardation to interfere with the normal operation of a transmission part, so that the actual movement track of the welding gun deviates from the preset path, the dislocation of the welding position is caused, the quality defect of a welding seam is caused, the tail fin is directly scrapped, and the product percent of pass is greatly reduced. And with the high-frequency continuous development of welding operation, the abrasion phenomenon of the tool core component inevitably occurs, and the abrasion can change the initial set distance between a welding gun and a tail fin, so that the problems of overheating and fusing of a welding wire, slag sticking of a nozzle of the welding gun, arc stability reduction, slag splashing, unfused welding seams and the like caused by too close welding distance or too far distance are caused, and the stability of welding quality is seriously influenced.

Aiming at the problems, the butt joint tool for welding and processing the aerospace tail fin is provided.

Disclosure of Invention

The invention aims to provide a butt joint tool for welding processing of a space flight tail piece, which adopts the device to work, so that the problems of low positioning and welding efficiency, difficult guarantee of welding positioning precision, poor equipment universality, insufficient welding process control capability and missing welding gun path correction capability of the existing tool in the background are solved.

The butt joint tooling for welding the aerospace tail fin comprises a base frame, wherein a sliding rail is fixedly connected to the base frame, a sliding plate is connected to the sliding rail in a sliding manner, a butt joint assembly is installed on the base frame, a placing seat is fixedly connected to the sliding plate, a clamping assembly is arranged on the placing seat, and a tail fin body is installed on the placing seat in a clamping manner through the clamping assembly;

Fixedly connected with mount on the bed frame, fixedly connected with guide arm on the mount, sliding connection has the slide on the guide arm, install the driving piece on the mount, the slide symmetry is equipped with two, two fixedly connected with link between the slide, the arc frame is installed to link end side, install welding mechanism on the arc frame, welding mechanism includes sliding connection and is in movable seat on the arc frame, fixedly connected with spill frame on the movable seat, fixedly connected with mounting panel on the spill frame, install infrared scanner on the mounting panel, set up flutedly on the mounting panel, sliding connection has the cylinder in the recess, the lift slides in the cylinder has the screw rod, screw rod bottom fixedly connected with welder.

Further, the butt joint assembly comprises an electric push rod fixedly connected to the base frame, the electric push rod is hinged to the sliding plates, two sliding plates are symmetrically arranged, connecting rods are hinged to the two sliding plates, a rotating plate is hinged to the end side of each connecting rod, a support is connected to the inside of each rotating plate in a rotating mode, and the support is fixedly connected with the base frame.

Further, the clamping assembly comprises a double-shaft cylinder fixedly connected to the placing seat, two output ends of the double-shaft cylinder are slidably connected with piston rods, the side of each piston rod is fixedly connected with a mounting frame, a connecting block is fixedly connected to the mounting frame, a clamping frame is hinged to the connecting block, clamping wheels are mounted on the clamping frame, and the clamping wheels are attached to the side walls of the tail fin body.

Further, a notch is formed in the placement seat, and the mounting frame and the notch are embedded to slide.

Further, the driving piece comprises a first motor fixedly connected to the side wall of the fixing frame, a screw rod is fixedly connected to the output end of the first motor, and the sliding seat is in threaded connection with the screw rod.

Further, the inner wall and the outer wall 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.

Further, fixedly connected with motor two on the movable seat, motor two output fixedly connected with pivot, the pivot with the movable seat rotates to be connected, fixedly cup jointed gear one in the pivot, gear one with tooth's socket intermeshing, install a plurality of fixed axles on the movable seat, a plurality of rotate on the fixed axle and be connected with spacing wheel, spacing wheel with the laminating of arc wall is slided.

Further, the first electric pushing column and the second electric pushing column are fixedly connected to the mounting plate, the first fixed block is fixedly connected to the output end of the first electric pushing column, the second fixed block is fixedly connected to the output end of the second electric pushing column, the first limiting plate is fixedly connected to the end side of the first fixed block, the second limiting plate is fixedly connected to the end side of the second fixed block, the toothed plate is fixedly connected to the bottom surface of the first limiting plate, and the toothed plate is fixedly connected to the bottom surface of the second limiting plate.

Further, the cylinder bottom rotates and is connected with the gear II, the gear II with screw threaded connection, pinion rack I with pinion rack II all with gear II intermesh, the cylinder external fixation has cup jointed the anti-falling plate, the anti-falling plate with the mounting panel laminating slides.

Further, two limiting grooves are symmetrically formed in the mounting plate, and the first limiting plate and the second limiting plate are respectively connected with the two limiting grooves in a sliding mode.

Compared with the prior art, the invention has the following beneficial effects:

The automatic welding device can rapidly finish accurate positioning and clamping of tail fins, is matched with an automatic butt joint process, greatly improves the circulation efficiency of a welding process, effectively eliminates positioning deviation caused by manual operation, combines the self-adaptive joint design of the curved surfaces of the clamping wheel and the tail fins, combines the central positioning function of the placement seat, can limit the position offset during welding of the tail fins to an effective range, guarantees the position accuracy of a welding seam, improves the consistency of welding quality, can automatically adjust the clamping angle and strength according to different curved surface contours of a tail fin body, can be compatible with tail fin welding of various specification models without changing hardware, is adaptive to the assembly requirements of tail fins of different sizes, has strong equipment universality, can automatically realize accurate adjustment of the height of a welding gun no matter whether the initial welding distance is set or the distance is changed due to abrasion in the welding process, effectively avoids the problems of welding wire fusing, welding gun sticking slag, unstable arc welding and the like caused by the distance deviation, can rapidly drive the tail fins to rapidly reset according to the different curved surface contours of the tail fin body, can stably switch the welding position accurately and stably in the welding seam of the arc welding gun, the welding tail fins can be prevented from being damaged due to the fact that the welding position is blocked and the tail fins are required to be rapidly driven, the welding precision is guaranteed to be stably and the welding position of the tail fin is stably and the welding tracks can be switched in a high position, and the welding position of a high-dimensional space is guaranteed, and the welding precision is stable and stable space is ensured.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the overall side view of the present invention;

FIG. 3 is a schematic view of a docking assembly according to the present invention;

FIG. 4 is a schematic view of a structure of a clamping assembly and a placement base of the present invention;

FIG. 5 is a schematic view of a clamping assembly according to the present invention;

FIG. 6 is a schematic view of a welding mechanism and arc frame mounting structure of the present invention;

FIG. 7 is a schematic top view of FIG. 6 illustrating the structure of the present invention;

FIG. 8 is a schematic view of a welding mechanism according to the present invention;

FIG. 9 is a schematic top view of FIG. 8 illustrating the structure of the present invention;

fig. 10 is a schematic view of a part of the structure of the welding mechanism of the present invention.

The welding gun comprises a base frame 1, a sliding rail 2, a sliding plate 3, a sliding plate 4, a placing seat 41, a notch 5, a butt joint assembly 51, an electric push rod 52, a connecting rod 53, a rotating plate 54, a supporting column 6, a tail fin body 7, a clamping assembly 71, a double-shaft cylinder 72, a piston rod 73, a mounting frame 74, a connecting block 75, a clamping frame 76, a clamping wheel 8, a fixing frame 9, a guide rod 10, a sliding seat 11, a driving piece 110, a motor one, a 111, a screw rod 12, a connecting frame 13, an arc-shaped frame 131, an arc-shaped groove 132, a tooth socket 14, a welding mechanism 141, a movable seat 142, a motor two, a motor 143, a rotating shaft 144, a gear one, a fixed shaft 146, a limiting wheel 147, a concave frame 148, a mounting plate 481, a limiting groove 482, a groove 483, an electric push post one, a 484, a fixed block one, a 485, a limiting plate one, a 486, a toothed plate one, a 487, an electric push post two, a 488, a fixed block two, a toothed plate 899, a limiting plate two, a gear two, a 89890, a gear two, a welding gun 894, a scanning gun, a bolt 894, an infrared detector.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In order to solve the technical problems that when the fin piece is subjected to butt welding, the fin piece is easy to shift when being welded due to the shape setting of the fin piece, so that the welding is deviated, and the welding quality of the fin piece is reduced, as shown in fig. 1-5, the following preferable technical scheme is provided:

The utility model provides a space fin piece welding process is with butt joint frock, includes bed frame 1, fixedly connected with slide rail 2 on the bed frame 1, sliding connection has slide 3 on the slide rail 2, installs butt joint subassembly 5 on the bed frame 1 for dock two fin piece bodies 6, fixedly connected with on the slide 3 places seat 4, is equipped with clamping assembly 7 on placing seat 4, is used for carrying out the centre gripping to fin piece body 6 fixedly, places on the seat 4 and installs tail fin body 6 through the centre gripping of clamping assembly 7 centre gripping.

The butt joint assembly 5 comprises an electric push rod 51 fixedly connected to the base frame 1, the electric push rod 51 is hinged to the sliding plates 3, two sliding plates 3 are symmetrically arranged, connecting rods 52 are hinged to the two sliding plates 3, a rotating plate 53 is hinged to the end side of each connecting rod 52, a support column 54 is rotatably connected to the inside of each rotating plate 53, and the support columns 54 are fixedly connected with the base frame 1. This design can guarantee that fin piece body 6 can dock steadily, accurately, effectively avoids the butt joint deviation because of interval adjustment uneven leads to.

The clamping assembly 7 comprises a double-shaft air cylinder 71 fixedly connected to the placing seat 4, output ends on two sides of the double-shaft air cylinder 71 are slidably connected with a piston rod 72, end sides of the piston rod 72 are fixedly connected with a mounting frame 73, a connecting block 74 is fixedly connected to the mounting frame 73, a clamping frame 75 is hinged to the connecting block 74, clamping wheels 76 are mounted on the clamping frame 75, the clamping wheels 76 are attached to the side wall of the tail fin body 6, the clamping wheels 76 are made of special flexible materials, not only can be tightly attached to the complicated curved side wall of the tail fin body 6, but also enough clamping force can be provided, damage to the surface of the tail fin body is avoided, a notch 41 is formed in the placing seat 4, the mounting frame 73 and the notch 41 are embedded to slide, the notch 41 provides an embedded sliding space for the mounting frame 73, the movement track of the mounting frame 73 is limited, the clamping frame 73 can only slide in a specific direction within the range of the notch 41, so that the stability and the accuracy of the clamping assembly 7 in working are guaranteed, and the tail fin body 6 cannot be displaced due to external force in the welding process are guaranteed.

Specifically, as shown in fig. 1-3, when the tooling is used for butt welding of the tail fin body 6, the electric push rod 51 is started firstly, and when the electric push rod 51 stretches out, the sliding plate 3 at the end side of the electric push rod is outwards slid along the sliding rail 2, and when one side of the sliding plate 3 moves, the connecting rod 52 synchronously rotates along with the sliding rod 3 due to the fact that the two sliding plates 3 are hinged with the rotating plate 53 through the connecting rod 52, so that the rotating plate 53 is driven to rotate around the supporting column 54, when the rotating plate 53 rotates, the sliding plate 3 hinged with the other end of the rotating plate 53 also synchronously horizontally moves along the sliding rail 2, finally, the two sliding plates 3 drive the placement seats 4 fixed at the top to be separated from each other, and after the placement seats 4 are completely separated, the electric push rod 51 is closed.

In the initial state, the piston rod 72 of biax cylinder 71 is in the state of stretching out, clamping frame 75 and clamping wheel 76 of both sides are located respectively and place seat 4 both ends, at this moment, the staff can be with wait welded fin body 6 steadily place between the clamping frame 75 in the middle of placing seat 4, accomplish the back of placing, start biax cylinder 71 and carry out piston rod 72 and retrieve the operation, because piston rod 72 passes through mounting bracket 73 and connecting block 74 fixed link, in the in-process of piston rod 72 withdrawal cylinder, mounting bracket 73 can slide in notch 41 along with it, drive connecting block 74 and clamping frame 75 synchronous horizontal migration simultaneously, when clamping wheel 76 and fin body 6 on clamping frame 75 contact, because fin edge is cambered surface structure, and clamping frame 75 adopts the rotation to be connected with connecting block 74, along with clamping frame 75 continuously inwards moves, the clamping frame 75 that receives the contradicting force can rotate around connecting block 74, and then drive clamping wheel 76 laminating the cambered surface profile of fin, realize accurate clamp. The clamping frames 75 on both sides synchronously move inwards, so that the tail fin body 6 can be ensured to be stably clamped at the center position, and the tail fin body is ready for subsequent welding operation.

After the fin body 6 is clamped firmly, the electric push rod 51 is started again, the electric push rod 51 drives the sliding plate 3 to slide back along the sliding rail 2, along with the back movement of the sliding plate 3 on one side, the connecting rod 52 rotates and drives the rotating plate 53 to rotate around the supporting column 54, so that the sliding plates 3 on two sides slide along the sliding rail 2 in opposite directions, and the top placing seat 4 drives the clamped fin body 6 to butt joint until the two fin bodies 6 are precisely attached, so that the subsequent welding procedure can be developed.

Through the setting for can carry out firm centre gripping to fin piece body 6 in the welding process, this action has avoided artifical manual adjustment interval, has both promoted operating efficiency, has reduced again and has caused fin piece butt joint to appear the risk of deviation because of interval error, can ensure simultaneously when welding different model tail fins, all can closely laminate the curved surface structure of different fin piece bodies 6, prevents to produce the displacement because of not hard up in the welding process, further offsets thermal stress and the mechanical vibration that produces when welding to ensure welding quality and fin piece finished product precision.

In order to solve the technical problems that in welding operation, the welding gun 895 generates mechanical fatigue and wear due to long-term use in cooperation with the arc-shaped frame 13, so that the welding position is inaccurate, and foreign matter blocks to interfere with a preset movement path of the welding gun 895, so that the welding displacement is offset and the welding distance is misaligned, as shown in fig. 1-2 and fig. 6-10, the following preferable technical scheme is provided:

Fixedly connected with mount 8 on the bed frame 1, fixedly connected with guide arm 9 on the mount 8, sliding connection has slide 10 on the guide arm 9, install driving piece 11 on the mount 8, slide 10 symmetry is equipped with two, fixedly connected with link 12 between two slides 10, arc frame 13 is installed to link 12 end side, install welding mechanism 14 on the arc frame 13, welding mechanism 14 includes the movable seat 141 of sliding connection on arc frame 13, fixedly connected with spill frame 147 on the movable seat 141, be equipped with the through-hole of being convenient for screw 894 lift on the spill frame 147, avoid hindering screw 894 lift adjustment. The concave frame 147 is fixedly connected with a mounting plate 148, the mounting plate 148 is provided with an infrared scanner 149, the welding position and the surface profile of the tail fin can be scanned in real time, acquired data are fed back to the control system, and data support is provided for accurate positioning of the welding gun 895. The mounting plate 148 is provided with a groove 482, a cylinder 892 is slidably connected in the groove 482, and a screw 894 is vertically and slidably arranged in the cylinder 892, which is required to be noted that when the screw 894 is operated to be lifted or lowered, the rotation direction of the gear II 891 can be adjusted according to the requirement. The bottom of the screw 894 is fixedly connected with a welding gun 895.

The driving piece 11 comprises a first motor 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 first motor 110, the sliding seat 10 is in threaded connection with the screw rod 111, arc grooves 131 are formed in the inner wall and the outer wall of the arc frame 13, and a plurality of tooth grooves 132 are formed in the outer wall of the arc frame 13.

The movable seat 141 is fixedly connected with a motor II 142, the output end of the motor II 142 is fixedly connected with a rotating shaft 143, the rotating shaft 143 is rotationally connected with the movable seat 141, the rotating shaft 143 is fixedly sleeved with a gear I144, the gear I144 is meshed with the tooth groove 132, the movable seat 141 is provided with a plurality of fixed shafts 145, the plurality of fixed shafts 145 are rotationally connected with limiting wheels 146, and the limiting wheels 146 are attached to and slide with the arc-shaped groove 131.

The mounting plate 148 is fixedly connected with a first electric pushing column 483 and a second electric pushing column 487, the output end of the first electric pushing column 483 is fixedly connected with a first fixed block 484, the output end of the second electric pushing column 487 is fixedly connected with a second fixed block 488, the end side of the first fixed block 484 is fixedly connected with a first limit plate 485, the end side of the second fixed block 488 is fixedly connected with a second limit plate 489, the bottom surface of the first limit plate 485 is fixedly connected with a toothed plate 486, and the bottom surface of the second limit plate 489 is fixedly connected with a second toothed plate 890.

The bottom of the cylinder 892 is rotationally connected with a gear II 891, the gear II 891 is in threaded connection with a screw rod 894, a toothed plate I486 and a toothed plate II 890 are mutually meshed with the gear II 891, an anti-falling plate 893 is fixedly sleeved outside the cylinder 892, the anti-falling plate 893 is attached to and slides with the mounting plate 148, two limiting grooves 481 are symmetrically formed in the mounting plate 148, and a limiting plate I485 and a limiting plate II 489 are respectively in sliding connection with the two limiting grooves 481.

Specifically, after two fin piece bodies 6 butt joint, when needing to weld it, according to the welding distance between welder 895 and fin piece body 6 of demand adjustment, during the adjustment, open electric push post 483 in step and stretch out and electric push post two 487 shrink, when electric push post one 483 stretches out, its fixed block one 484 synchronous drive end side fixed limiting plate one 485 moves along spacing slot 481 place ahead, when electric push post two 487 shrink, its fixed block two 488 synchronous drive end side fixed limiting plate two 489 moves along spacing slot 481 backward for rack one 486 on the first 485 of limiting plate and rack two 890 on the limiting plate two 489 carry out horizontal migration along different directions, because rack one 486 and rack two 890 and gear two 891 intermesh, along with the synchronous reverse movement of rack one 486 and rack two 890, gear two 891 can rotate round cylinder 892 under the meshing effect, because gear two 891 and 894 threaded connection, and 892 are equipped with the inside for the cylinder 894, and can receive the fixed space of the rotation of the movable screw 894 at 894 and can make the welding welder 894 and make the fixed distance of the lifting screw 894 can be adjusted according to the demand at the fixed position of the fixed screw 894 of the required distance of the welding welder.

After the adjustment to the suitable distance, start motor one 110 drive lead screw 111 rotation, because slide 10 and lead screw 111 threaded connection, slide 10 and guide arm 9 sliding connection, therefore when lead screw 111 is rotatory, slide 10 and its threaded fit, can change the rotary motion of lead screw 111 into the horizontal motion of slide 10 under the effect of screw thread for slide 10 moves along guide arm 9 level, because slide 10 and fixed connection between link 12 and the arc frame 13, arc frame 13 can synchronous horizontal migration, welder 895 of installing on arc frame 13 then carries out welding process along fin piece body 6's butt joint position in step.

In the welding process, as shown in fig. 8-10, when the tool is used for welding for a long time, the welding mechanism 14 and the arc-shaped frame 13 slide to cause a wear phenomenon, the welding distance between the welding gun 895 and the tail fin sheet body 6 is shortened or prolonged due to wear, the butt welding performance of the tail fin sheet body 6 can be affected once the welding distance is changed, the infrared scanner 149 carried by the system continuously scans and monitors the whole welding process, once the welding distance is detected to exceed a preset threshold value, a regulating instruction is sent to the first electric push column 483 and the second electric push column 487, and the first electric push column 483 and the second electric push column 487 immediately make targeted adjustment after receiving electric signals.

During adjustment, the electric pushing post I483 is synchronously started to extend and the electric pushing post II 487 is synchronously started to shrink, when the electric pushing post I483 extends, the fixing block I484 on the end side synchronously drives the limiting plate I485 fixed on the end side to move forwards along the limiting groove 481, and when the electric pushing post II 487 shrinks, the fixing block II 488 on the end side synchronously drives the limiting plate II 489 fixed on the end side to move backwards along the limiting groove 481, so that the toothed plate I486 on the limiting plate I485 and the toothed plate II 890 on the limiting plate II 489 horizontally move along different directions, as the toothed plate I486 and the toothed plate II 890 are meshed with the gear II 891, the gear II 891 rotates around the cylinder 892 under the meshing action along with the synchronous and reverse movement of the toothed plate I486 and the toothed plate II 890, because gear two 891 and screw rod 894 threaded connection are equipped with the cavity of being convenient for screw rod 894 lift in the cylinder 892, therefore, when gear two 891 rotates and cooperates with the screw thread, screw rod 894 can be at the cylinder 892 internal activity lift under the effect that receives the screw thread, and with screw rod 894 fixed mounting's welder 895 just can go on lifting movement according to the demand for welder 895 can shorten or the pertinence adjustment of extension to its welded distance according to fin piece body 6 thickness, make can not appear welding wire overheat fusing that the too near welding distance caused when the welding, the arc stability decline that the phenomenon and the welding distance of welder 895 nozzle stick the sediment caused, the welding slag splashes, the welding is incomplete, the emergence of welding seam oxidation production gas pocket scheduling phenomenon.

It should be noted that, welding slag can be generated in the welding process, the generated welding slag can be cleaned manually at regular intervals, the phenomenon that the welding mechanism 14 cannot normally move to weld according to a preset path due to the fact that the welding slag is clamped into the arc-shaped frame 13 is avoided as much as possible, and the phenomenon of stagnation is reduced, but in the welding process, the welding slag can splash, and the welding slag can be clamped into the arc-shaped frame 13 slightly carelessly.

If the welding slag is splashed and carelessly blocked into the arc-shaped frame 13 in the welding process, the preset movement path of the welding gun 895 is blocked and disturbed, the welding position of the welding gun 895 is changed at the moment, and the welding seam on the tail fin body 6 is changed along with the change, so that the welding position is misplaced, and the tail fin body 6 is damaged to influence the use.

Thus, in the welding process, if the above problem occurs, as shown in fig. 7-10, if the welding path of the welding gun 895 is found to have deviation distortion in the welding process, the infrared scanner 149 immediately scans and senses, then converts the scanned data into an electrical signal and transmits the electrical signal to the first electric push post 483 and the second electric push post 487, then the first electric push post 483 and the second electric push post 487 are started immediately after receiving the electrical signal, because the first electric push post 483, the fixed block 484, the limiting plate 485 and the toothed plate 486 are fixedly connected, the first electric push post 487, the fixed block 488, the limiting plate 489 and the toothed plate 890 are fixedly connected, so the first electric push post 483 and the second electric push post 487 synchronously and co-directionally drive the fixed block 484 and the fixed block 488 to horizontally move, the limiting plate 485 and the limiting plate 489 synchronously and horizontally move along the limiting groove 481 after being started, the toothed plate 486 at the bottom and the toothed plate 890 are synchronously and horizontally moved, and because the toothed plate 486 is meshed with the toothed plate 486 and the toothed plate 890, the toothed plate 486 and the toothed plate 890 can synchronously and horizontally move the toothed plate 891 in the horizontal movement process, so that the cylinder 892 and the anti-falling plate 893 on the toothed plate 891 synchronously and horizontally move along the groove 482, the anti-falling plate 893 can only slide and cannot rotate in the groove 482, the welding gun 895 arranged below the toothed plate 891 through the screw 894 synchronously and horizontally moves, the welding position of the welding gun 895 is changed, the welding gun 895 can dynamically adjust according to the position deviation of a welding seam timely scanned by the infrared scanner 149 in real time by adopting the design, timely offset can be corrected, the automatic adjustment function can effectively resist interference factors such as welding slag blocking and the like in the welding process, avoid the deviation of the welding gun 895 from a preset moving path, thereby ensuring that the tail vane body 6 remains precisely aligned during butt welding and improving the welding quality.

When the top surface of fin piece body 6 is welded and is accomplished, need carry out welding treatment to fin piece body 6's side and bottom surface, therefore, after the welding is accomplished, when need carry out the welding position to welder 895 and adjust, motor two 142 on movable seat 141 is started, after motor two 142 on movable seat 141 starts, the pivot 143 of its output can drive gear one 144 and rotate, because a plurality of tooth grooves 132 are offered to the outer wall of arc frame 13, and gear one 144 and the tooth groove 132 intermeshing of arc frame 13 outer wall, under the effect of meshing, the rotation of gear one 144 can be converted into the sliding motion of movable seat 141 along arc frame 13, make movable seat 141 can slide along arc frame 13, make welder 895 can carry out welding treatment to fin piece body 6's side, after the side welding is accomplished, continue to drive movable seat 141 and remove along arc frame 13, when movable seat 141 drives welder 895 and is in fin piece body 6's bottom surface position, then start motor one 110, motor one 110 drives lead screw 111 and rotates, then synchronous drive link 12 and horizontal slide frame 13 are removed along arc frame 13, and then make welding treatment to fin body 6 is carried out on the horizontal slide frame 6, and then the welding treatment is carried out on the horizontal slide frame 6.

Meanwhile, as the limiting wheels 146 on the movable seat 141 are attached to the arc grooves 131 of the inner wall and the outer wall of the arc frame 13 to slide, the movement track of the movable seat 141 is limited through the arrangement of the arc grooves 131, the movable seat can only slide along the arc frame 13, the functions of stable support and guide are also achieved, the movable seat 141 is ensured to be stable in the arc movement process, the accurate movement of the welding gun 895 on the arc track is further realized, and the welding requirements of different parts of the tail fin body 6 are met.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The butt joint tool for welding the aerospace tail fin comprises a base frame (1) and is characterized in that a sliding rail (2) is fixedly connected to the base frame (1), a sliding plate (3) is connected to the sliding rail (2) in a sliding mode, a butt joint assembly (5) is installed on the base frame (1), a placing seat (4) is fixedly connected to the sliding plate (3), a clamping assembly (7) is arranged on the placing seat (4), and a tail fin body (6) is installed on the placing seat (4) in a clamping mode through the clamping assembly (7);

Fixedly connected with mount (8) on bed frame (1), fixedly connected with guide arm (9) on mount (8), sliding connection has slide (10) on guide arm (9), install driving piece (11) on mount (8), slide (10) symmetry is equipped with two, two fixedly connected with link (12) between slide (10), arc frame (13) are installed to link (12) end side, install welding mechanism (14) on arc frame (13), welding mechanism (14) include sliding connection movable seat (141) on arc frame (13), fixedly connected with spill frame (147) on movable seat (141), fixedly connected with mounting panel (148) on spill frame (147), install infrared scanner (149) on mounting panel (148), set up flutedly (482) on mounting panel (148), sliding connection has cylinder (892) in recess (482), lift slip has screw rod (894) in cylinder (892), screw rod (894) bottom fixedly connected with screw rod (895).

2. The butt joint tool for welding processing of the aerospace tail fin according to claim 1, wherein the butt joint assembly (5) comprises electric push rods (51) fixedly connected to the base frame (1), the electric push rods (51) are hinged to the sliding plates (3), two sliding plates (3) are symmetrically arranged, connecting rods (52) are hinged to the two sliding plates (3), rotating plates (53) are hinged to the end sides of the connecting rods (52), supporting columns (54) are connected to the inner portions of the rotating plates (53) in a rotating mode, and the supporting columns (54) are fixedly connected to the base frame (1).

3. The butt joint tool for welding processing of the aerospace tail piece according to claim 1, wherein the clamping assembly (7) comprises a double-shaft air cylinder (71) fixedly connected to the placing seat (4), two output ends of the two sides of the double-shaft air cylinder (71) are slidably connected with piston rods (72), end sides of the piston rods (72) are fixedly connected with mounting frames (73), connecting blocks (74) are fixedly connected to the mounting frames (73), clamping frames (75) are hinged to the connecting blocks (74), clamping wheels (76) are mounted on the clamping frames (75), and the clamping wheels (76) are attached to the side walls of the tail piece body (6).

4. The butt joint tool for welding processing of the aerospace tail piece according to claim 3, wherein the placement seat (4) is provided with a notch (41), and the mounting frame (73) and the notch (41) are embedded to slide.

5. The butt joint tool for welding processing of the aerospace tail piece according to claim 1, wherein the driving piece (11) comprises a first motor (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 first motor (110), and the sliding seat (10) is in threaded connection with the screw rod (111).

6. The butt joint tool for welding processing of the aerospace tail piece according to claim 1, wherein arc grooves (131) are formed in the inner wall and the outer wall of the arc-shaped frame (13), and a plurality of tooth grooves (132) are formed in the outer wall of the arc-shaped frame (13).

7. The butt joint tool for welding processing of the aerospace tail piece, as set forth in claim 6, wherein the movable seat (141) is fixedly connected with a second motor (142), an output end of the second motor (142) is fixedly connected with a rotating shaft (143), the rotating shaft (143) is rotationally connected with the movable seat (141), a first gear (144) is fixedly sleeved on the rotating shaft (143), the first gear (144) is meshed with the tooth groove (132), the movable seat (141) is provided with a plurality of fixed shafts (145), a plurality of fixed shafts (145) are rotationally connected with limiting wheels (146), and the limiting wheels (146) are in fit sliding with the arc-shaped groove (131).

8. The butt joint tool for welding processing of the aerospace tail piece according to claim 7, wherein the mounting plate (148) is fixedly connected with a first electric pushing column (483) and a second electric pushing column (487), the output end of the first electric pushing column (483) is fixedly connected with a first fixing block (484), the output end of the second electric pushing column (487) is fixedly connected with a second fixing block (488), the end side of the first fixing block (484) is fixedly connected with a first limiting plate (485), the end side of the second fixing block (488) is fixedly connected with a second limiting plate (489), the bottom surface of the first limiting plate (485) is fixedly connected with a toothed plate (486), and the bottom surface of the second limiting plate (489) is fixedly connected with a second toothed plate (890).

9. The butt joint tool for welding processing of the aerospace tail piece, as set forth in claim 8, wherein a gear II (891) is rotatably connected to the bottom of the cylinder (892), the gear II (891) is in threaded connection with the screw (894), the toothed plate I (486) and the toothed plate II (890) are meshed with the gear II (891), an anti-falling plate (893) is fixedly sleeved outside the cylinder (892), and the anti-falling plate (893) is attached to and slides with the mounting plate (148).

10. The butt joint tool for welding and processing the space flight tail piece according to claim 9, wherein two limit grooves (481) are symmetrically formed in the mounting plate (148), and the first limit plate (485) and the second limit plate (489) are respectively connected with the two limit grooves (481) in a sliding mode.