Laser welding device for aircraft part machining

Abstract

The invention discloses a laser welding device for aircraft part machining, and belongs to the technical field of aircraft part machining and production.The laser welding device comprises a main body module and a preliminary detection module, the main body module comprises a welding frame, a welding mechanical arm is arranged in the welding frame, and fixed rotating modules are arranged on the two sides of the welding frame; through the arrangement of the fixed rotating module, the intermittent matching assembly, the irradiation assembly, the color changing piece and the visual detection instrument, after welding, detection of multiple supplementary lighting colors can be directly achieved on the welding device, the visual detection instrument conducts comparison and defect detection subsequently, single light color detection is compared, and the detection efficiency is improved. The whole detection process is more comprehensive, defect missing detection is prevented, compared with multi-light-color detection, the device is of an integrated structure and is higher in compatibility, the two steps can be more coordinated, the whole detection is more coherent, meanwhile, repair welding or other treatment is conducted in time when problems occur, and the welding quality of the device is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of aircraft parts processing and production, and more particularly to a laser welding device for aircraft parts processing. Background Art

[0002] Aircraft manufacturing refers to the process of building an aircraft according to design specifications. Typically, aircraft manufacturing encompasses the manufacture of fuselage components, assembly of parts, and final assembly of the entire aircraft. Other aircraft components, such as the engine, instrumentation, onboard equipment, hydraulic systems, and accessories, are manufactured in specialized factories. Aircraft piping components, for example, require laser welding for connection, necessitating the use of laser welding equipment. Following inspection, preliminary screening is performed to assess the initial quality of the welds. More stringent requirements require a more detailed re-inspection.

[0003] Regarding the above-mentioned related technologies, the current mainstream technology generally adopts visual inspection methods. In order to improve the detection accuracy, it is usually necessary to use a light source for supplementary lighting. However, the existing detection scheme faces significant challenges: when a single wavelength light source (monochromatic light) illuminates the weld, it is difficult to fully highlight the characteristics of certain types of defects, which can easily lead to missed detection, thereby reducing the reliability of the initial inspection. Although some solutions have tried to use multi-color light (such as alternating red and blue light) to enhance the defect visualization ability, these multi-color light sources are often separated from the main body of the welding device. This split structure makes it difficult to coordinate the switching of the light source and the operating rhythm of the welding / detection device. In summary, the spectral limitations of the monochromatic light source and the split structural defects of the multi-color light source work together to cause the core problems of weld detection such as "insufficient detection effect, low efficiency, and poor compatibility". For this reason, a laser welding device for aircraft parts processing is proposed. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a laser welding device for aircraft parts processing, which adopts the following technical solutions:

[0005] A laser welding device for processing aircraft parts includes a main module and a preliminary inspection module. The main module includes a welding frame, a welding robot arm is disposed inside the welding frame, and fixed rotation modules are disposed on both sides of the welding frame. The preliminary inspection module includes a C-shaped frame slidably connected to the bottom of the inner wall of the welding frame and connected to the outer surface of the welding robot arm. The top of the inner wall of the C-shaped frame is rotatably connected to a rotating drum, and the bottom of the rotating drum is fixedly connected to a spherical conversion plate. The outer surface of the spherical conversion plate is annular and equidistantly fixedly connected to a plurality of color-changing plates. The plurality of color-changing plates are evenly divided into two groups, and the plurality of color-changing plates in each group have different colors, and the colors of the color-changing plates in the two groups correspond to each other. A visual inspection instrument and two irradiation assemblies are disposed on the top of the inner wall of the C-shaped frame, wherein the two color-changing plates are respectively located inside the two irradiation assemblies, and the visual inspection instrument is located inside the rotating drum. An intermittent matching assembly is disposed on one side of the welding frame, and the intermittent matching assembly is connected to the fixed rotation module and the rotating drum. A physical testing assembly is disposed on the C-shaped frame.

[0006] Furthermore, the illumination assembly includes an illumination lamp fixedly connected to the top of the inner wall of the C-shaped frame, the outer surface of the illumination lamp is fixedly connected to a steering rod, one end of the steering rod is fixedly connected to a focusing tube, and one of the color-changing plates is located between the focusing tube and the illumination lamp.

[0007] Furthermore, the intermittent fitting assembly includes a mounting seat fixedly connected to the top of the inner wall of the C-frame, the mounting seat is rotatably connected to a square sleeve inside, one end of the square sleeve is fixedly connected to a bevel gear, the outer surface of the rotating cylinder is fixedly connected to a connecting bevel gear ring, the connecting bevel gear ring is engaged with the bevel gear, the square sleeve is movably connected to a square inner rod inside, the square inner rod is rotatably connected to one side of the welding frame, and one end of the square inner rod is fixedly connected to a large gear.

[0008] Furthermore, the intermittent fitting assembly also includes a driving motor fixedly connected to one side of the welding frame, the output shaft of the driving motor is fixedly connected to an incomplete gear, the fixed rotating module is connected to a connecting gear, and the connecting gear and the large gear are both adapted to the incomplete gear.

[0009] Furthermore, the physical testing component includes a movable rod movably connected to the inside of the C-shaped frame, one end of the movable rod is movably connected to a ball bearing, a spring is provided between the outer surface of the movable rod and the C-shaped frame, the other end of the movable rod is fixedly connected to a drawing pen, the rear end face of the C-shaped frame is fixedly connected to a drawing board, the bottom end of the drawing pen is in contact with the top of the drawing board, two standard lines are provided on the top of the drawing board, and the bottom end of the drawing pen is located between the two standard lines.

[0010] Furthermore, the preliminary detection module also includes two dust covers fixedly connected to the outer surface of the C-shaped frame, and the two dust covers are in contact with the spherical conversion plate.

[0011] The cam is fixedly mounted on a shaft with one end in contact with the inner wall of the shaft and the other end in a rotation thereof.

[0012] Furthermore, the fixing assembly includes a clamping plate slidably connected to one of the limit slots, the interior of the clamping plate is threadedly connected to the outer surface of the forward threaded rod, four mounting slots are provided inside the clamping plate, the interiors of the four mounting slots are rotatably connected to adjustment screws, the outer surfaces of the four adjustment screws are fixedly connected to small bevel teeth, the interiors of the four mounting slots are slidably connected to lifting blocks, the four lifting blocks are respectively threadedly connected to the outer surfaces of the four adjustment screws, and the four sleeve pipes are respectively fixedly connected to one side of the four lifting blocks.

[0013] Furthermore, the fixing assembly also includes a conical gear ring rotatably connected to one side of the clamping plate, and the conical gear ring is engaged with four small conical teeth.

[0014] Furthermore, the main body module includes a movable seat slidably connected to the inside of the welding frame, and the inside of the welding frame is fixedly connected to a first cylinder and two second cylinders, the output shaft of the first cylinder is fixedly connected to the movable seat, and the output shafts of the two second cylinders both extend out of one side of the welding frame and are connected to the fixed plate, and the welding robot arm is connected to the top of the movable seat.

[0015] In summary, the present invention has the following beneficial technical effects:

[0016] (1) The present invention sets up a fixed rotating module, an intermittent matching component, an irradiation component, a color changing sheet and a visual inspection instrument, so that after welding, the device can directly realize the detection of multiple fill-in light colors on the welding device. Subsequently, the visual inspection instrument compares and detects defects. Compared with single-light color detection, the overall detection process is more comprehensive, preventing defects from being missed. Compared with multi-light color detection, the device has an integrated structure and stronger compatibility, allowing the two steps to be more coordinated and the overall detection to be more coherent. At the same time, if problems occur, repair welding or other treatments can be carried out in time to ensure the welding quality of the device;

[0017] (2) The present invention can detect the thickness range of welds by setting up physical test components. This detection method is more direct and cooperates with visual detection to improve the detection effect. At the same time, it allows workers to view it intuitively, which is convenient for workers to make judgments;

[0018] (3) The present invention achieves the clamping and internal support of the pipe fittings by setting up a fixed rotating module, a fixed assembly, a sleeve pipe and a cross rod, so that the pipe fittings can be more stable during welding and testing, which is convenient for subsequent welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 Schematic diagram of the position of the second cylinder of the present invention;

[0021] Figure 3 A schematic diagram of a partial structure of an intermittent fitting assembly of the present invention;

[0022] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the part A in FIG;

[0023] Figure 5 This is a partial exploded diagram of the structure of the preliminary detection module of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the physical testing assembly of the present invention;

[0025] Figure 7 It is a cross-sectional schematic diagram of a fixed rotating module of the present invention;

[0026] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B in the middle.

[0027] Description of the numbers in the figure:

[0028] 100, main body module; 110, welding frame; 120, welding robot arm; 130, movable seat; 140, first cylinder; 150, second cylinder;

[0029] 200, preliminary inspection module; 210, C-frame; 220, rotating drum; 230, spherical conversion plate; 240, color changer; 250, irradiation assembly; 251, irradiation lamp; 252, steering rod; 253, focusing tube; 260, visual inspection instrument; 270, physical test assembly; 271, movable rod; 272, ball bearing; 273, drawing pen; 274, spring; 275, drawing board; 276, standard line; 280, dust cover; 290, intermittent fit assembly; 291, mounting seat; 292, square sleeve; 293, bevel gear; 294, connecting bevel gear ring; 295, square inner rod; 296, large gear; 297, drive motor; 298, incomplete gear; 299, connecting gear;

[0030] 300, fixed rotating module; 310, inner hollow cylinder; 320, forward threaded rod; 330, reverse threaded rod; 340, hexagonal slot; 350, hexagonal rod; 360, limit slot; 370, clamping motor; 400, fixed assembly; 410, clamping plate; 420, adjustment screw; 430, small bevel gear; 440, lifting block; 450, conical gear ring;

[0031] 500, sleeve tube; 600, cross rod. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0035] The following is combined with Figure 1-8 The present invention is described in further detail.

[0036] See also Figure 1-8 A laser welding device for processing aircraft parts includes a main module 100 and a preliminary detection module 200. The main module 100 includes a welding frame 110, a welding robot arm 120 is provided inside the welding frame 110, and fixed rotation modules 300 are provided on both sides of the welding frame 110. The preliminary detection module 200 includes a C-shaped frame 210 that is slidably connected to the bottom of the inner wall of the welding frame 110 and connected to the outer surface of the welding robot arm 120. The top of the inner wall of the C-shaped frame 210 is rotatably connected to a rotating drum 220. The bottom of the rotating drum 220 is fixedly connected to a spherical conversion plate 230. The outer surface of the spherical conversion plate 230 is fixedly connected to the inner wall of the spherical conversion plate 230. There are multiple color-changing sheets 240, and the multiple color-changing sheets 240 are evenly divided into two groups. The colors of the multiple color-changing sheets 240 in each group are different, and the colors of the two groups of color-changing sheets 240 correspond one to one. A visual inspection instrument 260 and two irradiation assemblies 250 are set on the top of the inner wall of the C-type frame 210, wherein the two color-changing sheets 240 are respectively located inside the two irradiation assemblies 250, and the visual inspection instrument 260 is located inside the rotating drum 220. An intermittent matching assembly 290 is set on one side of the welding frame 110, and the intermittent matching assembly 290 is connected to the fixed rotation module 300 and the rotating drum 220. A physical testing assembly 270 is set on the C-type frame 210.

[0037] During use, the two sections of pipe fittings that need to be welded are set on the fixed rotating module 300 and fixed with the fixing component 400, and the intermittent cooperation component 290 is opened. The intermittent cooperation component 290 will drive the fixed rotating module 300 to drive the pipe fitting to rotate one circle. At this time, the welding robot arm 120 realizes the welding of the pipe fitting. Subsequently, the intermittent cooperation component 290 drives the rotating drum 220 to rotate. The rotating drum 220 drives two of the same color color-changing plates 240 to enter the two irradiation components 250 respectively through the spherical conversion plate 230. The irradiation component 250 changes color through the color-changing plates 240. The light source after color change is irradiated on the weld. At this time, the intermittent cooperation component 290 drives the fixed rotating module 300 again, so that the fixed rotating module 300 drives the pipe fitting to rotate one circle. At this time, the visual inspection instrument 260 performs visual inspection on the weld. After one circle of inspection, the intermittent cooperation component 290 transmits again The rotating drum 220 is moved to change the color again. The above steps can complete the entire inspection process. Subsequently, the visual inspection instrument 260 compares the status of the weld under different fill lights to determine whether there are defects and unqualified problems. Since the aircraft pipe fittings require a high degree of precision, the welds after welding can be inspected through the setting of the inspection process to ensure the quality of the welds. When problems are found in the welds, timely repair welding or other treatments can be performed to prevent welds with obvious defects from entering re-inspection, while reducing the pressure of subsequent re-inspections. At the same time, during the rotation of the weld, the physical testing component 270 contacts the weld to detect the thickness range of the weld. The colors of the two sets of color-changing sheets 240 correspond one to one. Therefore, during the operation of the device, whether before or after switching, the color-changing sheets 240 illuminated by the two illumination components 250 are the same color to ensure that the fill light colors are the same.

[0038] The irradiation assembly 250 includes an irradiation lamp 251 fixedly connected to the top of the inner wall of the C-shaped frame 210, and the outer surface of the irradiation lamp 251 is fixedly connected to a steering rod 252, and one end of the steering rod 252 is fixedly connected to a focusing tube 253. One color-changing piece 240 is located between the focusing tube 253 and the irradiation lamp 251. The intermittent matching assembly 290 includes a mounting seat 291 fixedly connected to the top of the inner wall of the C-shaped frame 210, and the interior of the mounting seat 291 is rotatably connected to a square sleeve 292, and one end of the square sleeve 292 is fixedly connected to a bevel gear 293. The outer surface of the rotating drum 220 is fixedly connected to a connecting cone. The gear ring 294, the connecting bevel gear ring 294 is engaged with the bevel gear 293, the internal movable connection of the square sleeve 292 is connected with the square inner rod 295, the square inner rod 295 is rotatably connected to one side of the welding frame 110, and one end of the square inner rod 295 is fixedly connected to the large gear 296. The intermittent matching assembly 290 also includes a drive motor 297 fixedly connected to one side of the welding frame 110, and the output shaft of the drive motor 297 is fixedly connected to the incomplete gear 298. The fixed rotation module 300 is connected with a connecting gear 299, and the connecting gear 299 and the large gear 296 are both adapted to the incomplete gear 298.

[0039] The driving motor 297 drives the large gear 296, and the large gear 296 drives the bevel gear 293 to rotate through the square inner rod 295 and the square sleeve 292. The bevel gear 293 drives the connecting bevel gear ring 294 to rotate, and the connecting bevel gear ring 294 will drive the rotating drum 220 to rotate. The rotating drum 220 drives two color-changing plates 240 of the same color to enter between the irradiation lamp 251 and the focusing tube 253 through the spherical conversion plate 230. The irradiation lamp 251 irradiates, and the light changes color through the color-changing plate 240. After the color is changed, the light source is irradiated on the weld. At this time, the driving motor 297 drives the connecting gear 299 again, causing the pipe to rotate one circle again. At this time, the visual inspection instrument 260 performs visual inspection on the weld. After one circle of inspection, the driving motor 297 drives the large gear 296 again to change color again. Repeating the above steps can complete the entire inspection.

[0040] The physical testing assembly 270 includes a movable rod 271 movably connected to the inside of the C-frame 210, one end of the movable rod 271 is movably connected to a ball bearing 272, a spring 274 is provided between the outer surface of the movable rod 271 and the C-frame 210, the other end of the movable rod 271 is fixedly connected to a drawing pen 273, the rear end face of the C-frame 210 is fixedly connected to a drawing board 275, the bottom end of the drawing pen 273 contacts the top of the drawing board 275, two standard lines 276 are provided on the top of the drawing board 275, and the bottom end of the drawing pen 273 is located between the two standard lines 276.

[0041] At the same time, during the rotation of the weld, the ball 272 contacts the weld and rolls, thereby pushing the drawing pen 273 to move according to the shape of the weld. The drawing pen 273 will draw a straight line on the drawing board 275. If the straight line exceeds the two standard lines 276, it is unqualified.

[0042] The preliminary detection module 200 further includes two dust covers 280 fixedly connected to the outer surface of the C-shaped frame 210 , and both of the dust covers 280 are in contact with the spherical conversion plate 230 .

[0043] The two dust covers 280 can be provided to prevent the color-changing plate 240 from being affected by dust as much as possible.

[0044] The fixed rotation module 300 includes a fixed plate, and the fixed plate and the inner part of one side of the welding frame 110 are both rotatably connected to an inner hollow cylinder 310, one end of the inner wall of one inner hollow cylinder 310 is rotatably connected to a forward threaded rod 320, and one end of the inner wall of the other inner hollow cylinder 310 is rotatably connected to a reverse threaded rod 330, one end of the reverse threaded rod 330 is provided with a hexagonal groove 340, and one end of the forward threaded rod 320 is fixedly connected to a hexagonal rod 350, which is adapted to the hexagonal groove 340. The outer surfaces of the two inner hollow cylinders 310 are both provided with a limiting groove 360, one of which One end of the inner hollow cylinder 310 is fixedly connected to a clamping motor 370, and the output shaft of the clamping motor 370 is connected to the other end of the forward threaded rod 320. The outer surfaces of the two inner hollow cylinders 310 are provided with a fixing assembly 400, and the two fixing assemblies 400 are respectively connected to the reverse threaded rod 330 and the forward threaded rod 320. Four cross rods 600 and four sleeve tubes 500 are respectively connected to the two fixing assemblies 400. The four cross rods 600 are respectively adapted to the four sleeve tubes 500. One end of the other inner hollow cylinder 310 is fixedly connected to a connecting gear 299. The fixing assembly The component 400 includes a clamping plate 410 that is slidably connected to the inside of one of the limit grooves 360. The inside of the clamping plate 410 is threadedly connected to the outer surface of the forward threaded rod 320. Four mounting slots are opened inside the clamping plate 410. The insides of the four mounting slots are all rotatably connected to the adjustment screws 420. The outer surfaces of the four adjustment screws 420 are fixedly connected to small bevel gears 430. The insides of the four mounting slots are all slidably connected to lifting blocks 440. The four lifting blocks 440 are respectively threadedly connected to the outer surfaces of the four adjustment screws 420. The four sleeve pipes 500 are respectively fixed to one side of the four lifting blocks 440. The fixed connection, the fixed assembly 400 also includes a conical gear ring 450 rotatably connected to one side of the clamping plate 410, the conical gear ring 450 is engaged with four small conical teeth 430, the main body module 100 includes a movable seat 130 slidably connected to the inside of the welding frame 110, the interior of the welding frame 110 is fixedly connected with a first cylinder 140 and two second cylinders 150, the output shaft of the first cylinder 140 is fixedly connected to the movable seat 130, the output shafts of the two second cylinders 150 both extend out of one side of the welding frame 110 and are connected to the fixed plate, and the welding robot arm 120 is connected to the top of the movable seat 130.

[0045] The two conical gear rings 450 are rotated, and the two conical gear rings 450 respectively drive the four small bevel gears 430. The four small bevel gears 430 will drive the four adjusting screws 420 to rotate. The four adjusting screws 420 respectively drive the four lifting blocks 440 to move, so that the four sleeve tubes 500 and the four cross insertion rods 600 support the interior of the pipe fittings. The two second cylinders 150 are opened, so that the fixed plate drives one of the pipe fittings to move. The four cross insertion rods 600 are respectively inserted into the interior of the four sleeve tubes 500, and the hexagonal rod 350 is inserted into the hexagonal groove 340. Then the clamping motor 370 is turned on. The clamping motor 370 drives the reverse threaded rod 330 and the forward threaded rod 320 to rotate, so that the two clamping plates 410 slide close together. At this time, the two pipe fittings are docked, and the two clamping plates 410 also clamp the pipe fittings, thereby achieving clamping and internal support of the pipe fittings, making the pipe fittings more stable and convenient for subsequent welding operations.

[0046] The implementation principle of the embodiment of the present invention is as follows: when in use, the two sections of pipe fittings to be welded are set on the two fixing assemblies 400, and the two pipe fittings are respectively located outside the four sleeve pipes 500 and the four cross rods 600, and the two conical gear rings 450 are rotated. The two conical gear rings 450 respectively drive the four small bevel gears 430, and the four small bevel gears 430 will drive the four adjusting screws 420 to rotate, and the four adjusting screws 420 respectively drive the four lifting blocks 440 to move, so that the four sleeve pipes 500 and the four cross rods 600 support the inside of the pipe fittings, open the two second cylinders 150, so that the fixing plate drives one of the pipe fittings to move, and the four cross rods 600 are respectively inserted into the inside of the four sleeve pipes 500, and the hexagonal rods 350 are inserted After entering the hexagonal slot 340, the clamping motor 370 is turned on again. The clamping motor 370 drives the reverse threaded rod 330 and the forward threaded rod 320 to rotate, so that the two clamping plates 410 slide close to each other. At this time, the two pipes are docked, and the two clamping plates 410 also clamp the pipes, thereby achieving clamping and internal support for the pipes, making the pipes more stable and convenient for subsequent welding operations. Turn on the drive motor 297, and the drive motor 297 will drive the connecting gear 299. The connecting gear 299 will drive the inner hollow cylinder 310 to rotate. The inner hollow cylinder 310 drives another inner hollow cylinder 310 to rotate through the clamping plate 410, the sleeve pipe 500 and the cross rod 600, so that the pipe rotates 360 degrees. At this time, the welding robot arm 120 achieves the pipe The welding process is then completed. The subsequent driving motor 297 drives the large gear 296. The large gear 296 drives the bevel gear 293 to rotate through the square inner rod 295 and the square sleeve 292. The bevel gear 293 drives the connecting bevel gear ring 294 to rotate. The connecting bevel gear ring 294 will drive the rotating drum 220 to rotate. The rotating drum 220 drives two color-changing plates 240 of the same color to enter between the irradiation lamp 251 and the focusing cylinder 253 through the spherical conversion plate 230. The irradiation lamp 251 irradiates, and the light changes color through the color-changing plate 240. After the color change, the light source is irradiated on the weld. At this time, the driving motor 297 drives the connecting gear 299 again, causing the pipe to rotate again. At this time, the visual inspection instrument 260 performs visual inspection on the weld. After one circle of inspection, The rear drive motor 297 drives the large gear 296 again, thereby changing the color again. Repeating the above steps can complete the entire inspection. Subsequently, the visual inspection instrument 260 compares the status of the weld under different fill lights to determine whether there are defects and unqualified problems. Since the aircraft pipe fittings require a high degree of precision, the welds after welding can be inspected through the setting of the inspection process to ensure the quality of the welds. When problems are found in the welds, timely repair welding or other treatments can be performed to prevent welds with obvious defects from entering re-inspection, while reducing the pressure of subsequent re-inspections. At the same time, during the rotation of the weld, the ball 272 contacts the weld, and the ball 272 contacts the weld to roll, thereby pushing the drawing pen 273 to move according to the shape of the weld.The drawing pen 273 will draw a straight line on the drawing board 275. If the straight line exceeds the two standard lines 276, it is unqualified, thereby detecting the thickness range of the weld and allowing the staff to view it intuitively.

[0047] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laser welding device for machining aircraft parts, comprising a main body module (100) and a preliminary detection module (200), characterized in that: The main body module (100) comprises a welding frame (110), a welding robot arm (120) is provided inside the welding frame (110), and fixed rotation modules (300) are provided on both sides of the welding frame (110); The preliminary detection module (200) comprises a C-shaped frame (210) slidably connected to the bottom of the inner wall of the welding frame (110) and connected to the outer surface of the welding robot arm (120); the top of the inner wall of the C-shaped frame (210) is rotatably connected to a rotating drum (220); the bottom of the rotating drum (220) is fixedly connected to a spherical conversion plate (230); the outer surface of the spherical conversion plate (230) is annular and fixedly connected to a plurality of color-changing sheets (240) at equal distances; the plurality of color-changing sheets (240) are evenly divided into two groups; the colors of the plurality of color-changing sheets (240) in each group are different; the two groups of color-changing sheets The colors of the two colors (240) correspond one to another, a visual inspection instrument (260) and two irradiation assemblies (250) are provided on the top of the inner wall of the C-shaped frame (210), wherein the two color-changing sheets (240) are respectively located inside the two irradiation assemblies (250), and the visual inspection instrument (260) is located inside the rotating drum (220). An intermittent matching assembly (290) is provided on one side of the welding frame (110), and the intermittent matching assembly (290) is connected to the fixed rotating module (300) and the rotating drum (220), and a physical testing assembly (270) is provided on the C-shaped frame (210).

2. The laser welding device for aircraft parts processing according to claim 1, characterized in that: The irradiation assembly (250) comprises an irradiation lamp (251) fixedly connected to the top of the inner wall of the C-shaped frame (210); a steering rod (252) is fixedly connected to the outer surface of the irradiation lamp (251); one end of the steering rod (252) is fixedly connected to a focusing tube (253); and one of the color-changing sheets (240) is located between the focusing tube (253) and the irradiation lamp (251).

3. The laser welding device for aircraft parts processing according to claim 2, characterized in that: The intermittent mating assembly (290) includes a mounting seat (291) fixedly connected to the top of the inner wall of the C-shaped frame (210), a square sleeve (292) is rotatably connected inside the mounting seat (291), one end of the square sleeve (292) is fixedly connected to a bevel gear (293), the outer surface of the rotating cylinder (220) is fixedly connected to a connecting bevel gear ring (294), the connecting bevel gear ring (294) is meshed with the bevel gear (293), the square sleeve (292) is movably connected to a square inner rod (295), the square inner rod (295) is rotatably connected to one side of the welding frame (110), and one end of the square inner rod (295) is fixedly connected to a large gear (296).

4. The laser welding device for aircraft parts processing according to claim 3, characterized in that: The intermittent fitting assembly (290) further includes a driving motor (297) fixedly connected to one side of the welding frame (110), the output shaft of the driving motor (297) is fixedly connected to an incomplete gear (298), the fixed rotating module (300) is connected to a connecting gear (299), and the connecting gear (299) and the large gear (296) are both adapted to the incomplete gear (298).

5. The laser welding device for aircraft parts processing according to claim 4, characterized in that: The physical test assembly (270) comprises a movable rod (271) movably connected to the interior of the C-shaped frame (210), one end of the movable rod (271) being movably connected to a ball bearing (272), a spring (274) being provided between the outer surface of the movable rod (271) and the C-shaped frame (210), the other end of the movable rod (271) being fixedly connected to a drawing pen (273), the rear end surface of the C-shaped frame (210) being fixedly connected to a drawing board (275), the bottom end of the drawing pen (273) being in contact with the top of the drawing board (275), the top of the drawing board (275) being provided with two standard lines (276), the bottom end of the drawing pen (273) being located between the two standard lines (276).

6. The laser welding device for aircraft parts processing according to claim 5, characterized in that: The preliminary detection module (200) further comprises two dust covers (280) fixedly connected to the outer surface of the C-shaped frame (210), and both of the dust covers (280) are in contact with the spherical conversion plate (230).

7. The laser welding device for aircraft parts processing according to claim 6, characterized in that: The fixed rotation module (300) comprises a fixed plate, wherein the fixing plate and the inner portion of one side of the welding frame (110) are both rotatably connected to an inner hollow cylinder (310), wherein one end of the inner wall of one of the inner hollow cylinders (310) is rotatably connected to a forward threaded rod (320), wherein one end of the inner wall of the other inner hollow cylinder (310) is rotatably connected to a reverse threaded rod (330), wherein one end of the reverse threaded rod (330) is provided with a hexagonal groove (340), and one end of the forward threaded rod (320) is fixedly connected to a hexagonal rod (350), wherein the hexagonal rod (350) is adapted to the hexagonal groove (340), and the outer surfaces of the two inner hollow cylinders (310) are both provided with a limiting groove (360), wherein one One end of each inner hollow cylinder (310) is fixedly connected to a clamping motor (370), and the output shaft of the clamping motor (370) is connected to the other end of the forward threaded rod (320). The outer surfaces of the two inner hollow cylinders (310) are provided with a fixing assembly (400), and the two fixing assemblies (400) are respectively connected to the reverse threaded rod (330) and the forward threaded rod (320). Four cross rods (600) and four sleeve tubes (500) are respectively connected to the two fixing assemblies (400), and the four cross rods (600) are respectively adapted to the four sleeve tubes (500). One end of another inner hollow cylinder (310) is fixedly connected to a connecting gear (299).

8. The laser welding device for aircraft parts processing according to claim 7, characterized in that: The fixing assembly (400) includes a clamping plate (410) slidably connected to the inside of one of the limiting grooves (360), the inside of the clamping plate (410) is threadedly connected to the outer surface of the forward threaded rod (320), and four mounting grooves are provided inside the clamping plate (410), the insides of the four mounting grooves are rotatably connected to the adjusting screws (420), the outer surfaces of the four adjusting screws (420) are fixedly connected to small bevel teeth (430), the insides of the four mounting grooves are slidably connected to the lifting blocks (440), the four lifting blocks (440) are respectively threadedly connected to the outer surfaces of the four adjusting screws (420), and the four sleeve pipes (500) are respectively fixedly connected to one side of the four lifting blocks (440).

9. The laser welding device for aircraft parts processing according to claim 8, characterized in that: The fixing assembly (400) further comprises a conical gear ring (450) rotatably connected to one side of the clamping plate (410), wherein the conical gear ring (450) is engaged with four small conical teeth (430).

10. The laser welding device for aircraft parts processing according to claim 9, characterized in that: The main body module (100) includes a movable seat (130) slidably connected to the inside of the welding frame (110); a first cylinder (140) and two second cylinders (150) are fixedly connected to the inside of the welding frame (110); the output shaft of the first cylinder (140) is fixedly connected to the movable seat (130); the output shafts of the two second cylinders (150) extend out of one side of the welding frame (110) and are connected to the fixed plate; and the welding robot arm (120) is connected to the top of the movable seat (130).

Images