A laser welding device for an aircraft rudder wing structural component

Abstract

The present invention provides a laser welding device for an aircraft rudder wing structural member, including a workbench, on which a bearing seat is installed. An accommodation groove is formed in the bearing seat. An L-shaped frame is installed in the workbench. A linear driving member a is installed on the L-shaped frame. The output end of the linear driving member a is installed with a moving rod a, and a first clamping plate is installed on the moving rod a. In the present invention, by driving the moving belt to contact the first straight edges of the lower shell and the upper shell, negative pressure passes through the through holes to adsorb the first straight edges of the lower shell and the upper shell, and corrects the welding edges of the lower shell and the upper shell by adsorption, so that the welding gaps of the lower shell and the upper shell are aligned, avoiding the inward bending of the welding edges of the lower shell and the upper shell; the laser welding head performs laser welding on the gaps between the lower shell and the upper shell, and the sliding block slides on the second guide rail to perform laser welding on the first straight edge, the second straight edge, the third straight edge, and the fourth straight edge of the lower shell and the upper shell.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and particularly relates to a laser welding device for an aircraft rudder wing structural member. Background Art

[0002] A small manned aircraft, also called an ultra-light aircraft, generally refers to a small general-purpose aircraft driven by a propeller, with no more than 2 crew members and a maximum take-off mass of no more than 480 kg. Figure 17 Shown is a schematic structural diagram of a small manned aircraft rudder wing structural member, including a lower housing 802 and an upper housing 801. Welding is required during the production of this rudder wing structural member.

[0003] Chinese Patent Application No. 202222250931X discloses a laser welding machine, two pusher devices, a positioning device, and a laser welding device; the two pusher devices are arranged on the frame relatively on the sides, the positioning device is arranged between the two pusher devices, the positioning device includes a support base, a pressing driving member, and a lower pressing plate, the pressing driving member is arranged on one side of the support base, the lower pressing plate is connected to the lower pressing driving member and is located at the upper end of the support base; the pusher device includes a moving seat and a telescopic mechanism, the telescopic mechanism is telescopically arranged at one end of the moving seat close to the support base, the telescopic mechanism includes a support block, and the top surface of the support block is flush with the top surface of the support base; a pressing member is arranged on the top of the moving seat, the laser welding device is arranged on the frame, and an avoidance groove is arranged on the lower pressing plate for avoiding the laser beam of the laser welding device. Through the above structural arrangement, flat welding between two materials is achieved.

[0004] When welding this rudder wing structural member, it is necessary to first align the positions of the lower housing 802 and the upper housing 801, and then weld the welding seams around the lower housing 802 and the upper housing 801. However, obviously, the above laser welding device is not convenient for welding this rudder wing structural member. Therefore, we propose a laser welding device for an aircraft rudder wing structural member. Summary of the Invention

[0005] The purpose of the present invention is to provide a laser welding device for an aircraft rudder wing structural member in view of the deficiencies of the prior art. By driving the moving belt to contact the first straight edges of the lower housing and the upper housing, negative pressure passes through the through holes to adsorb the first straight edges of the lower housing and the upper housing, and corrects the welding edges of the lower housing and the upper housing by adsorption, so that the welding seams of the lower housing and the upper housing are aligned, and the welding edges of the lower housing and the upper housing are prevented from bending inward; the laser welding head performs laser welding on the seams of the lower housing and the upper housing, and the sliding block slides on the second guide rail to perform laser welding on the first straight edge, the second straight edge, the third straight edge, and the fourth straight edge of the lower housing and the upper housing.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A laser welding device for an aircraft rudder wing structural member, comprising a workbench, a bearing seat is installed on the workbench, a receiving groove is formed in the bearing seat, an L-shaped frame is installed in the workbench, a linear driving member a is installed on the L-shaped frame, a moving rod a is installed at the output end of the linear driving member a, and a first clamping plate is installed on the moving rod a;

[0008] An L-shaped plate is installed in the workbench, a rotary driving member a is installed on the L-shaped plate, a rotary sleeve a is rotatably arranged in the workbench, a first clamping groove is formed in the rotary sleeve a, a first convex block is installed on the moving rod a, and the first convex block rotates in the first clamping groove. The output shaft of the rotary driving member a and the rotary sleeve a are connected by a first belt transmission; A manipulator is arranged on one side of the workbench, and further includes:

[0009] A clamping synchronization mechanism, a grinding mechanism, a coating mechanism and a laser welding mechanism.

[0010] The clamping synchronization mechanism includes: a fixed frame, the fixed frame is installed on the workbench; a support frame, the support frame is installed on the fixed frame; a linear driving member b, the linear driving member b is installed on the support frame; a moving rod b, the moving rod b is installed at the output end of the linear driving member b; a second clamping plate, the second clamping plate is installed on the moving rod b; a transmission component, the transmission component is arranged on the fixed frame.

[0011] The transmission component includes a transmission rod rotatably arranged in the fixed frame. The transmission rod and the output shaft of the rotary driving member a are connected by a second belt transmission. A second convex block is installed on the moving rod b. A rotary sleeve b is rotatably arranged on the fixed frame. A second clamping groove is formed in the rotary sleeve b. The second convex block slides in the second clamping groove. The rotary sleeve b and the transmission rod are connected by a third belt transmission.

[0012] The grinding mechanism includes: a fixing plate, the fixing plate is installed on the workbench; a first guide rail, the first guide rail is installed on the fixing plate; a moving plate a, the moving plate a slides on the first guide rail; a rotary driving member c, the rotary driving member c is installed on the moving plate a; a rotary plate, the rotary plate is installed at the output end of the rotary driving member c; a linear driving member c, the linear driving member c is installed on the rotary plate; a grinding component, the grinding component is installed at the output end of the linear driving member c.

[0013] The grinding component includes a moving frame, the output end of the linear driving member c is installed with a moving frame, a driving rod and two rotating rods are rotatably arranged on the moving frame, a grinding belt is sleeved on the outer sides of the driving rod and the two rotating rods, a rotary driving member d is installed on the moving frame, and the output end of the rotary driving member d and the driving rod are connected by a fourth belt transmission.

[0014] One side of the moving frame is provided with a linear driving member d. The output end of the linear driving member d is provided with a bending frame. A driving wheel is rotatably arranged on the bending frame, and the driving wheel is arranged between the driving rod and the two rotating rods.

[0015] The laser welding mechanism includes: a fixed connection plate, which is installed on the workbench; a second guide rail, which is installed on the fixed connection plate; a sliding block, which is slidably arranged on the second guide rail; a rotary driving member e, which is installed on the sliding block; a U-shaped frame, which is installed on the output end of the rotary driving member e; and a laser welding assembly, which is installed on the U-shaped frame.

[0016] The laser welding assembly includes a linear driving member e. The linear driving member e is installed on the U-shaped frame. The output end of the linear driving member e is provided with a moving frame. A rotary frame is rotatably arranged on the moving frame. Connecting rods are arranged on both sides of the rotary frame. A rotary driving member f is installed on the moving frame. The rotary driving member f and one of the connecting rods are connected by a fifth belt. A laser welding head is installed on the rotary frame, and an adsorption assembly is installed on the rotary frame.

[0017] The adsorption assembly includes: brackets, two brackets are symmetrically installed on the rotary frame, and grooves are formed in the brackets; rotary wheels, two rotary wheels are rotatably arranged on both sides of the brackets; a moving belt, which is sleeved outside the two rotary wheels, and the moving belt slides in the grooves. A pipeline is installed on the other connecting rod. A square groove is formed in the bracket, and the pipeline is communicated with the square groove. A plurality of through holes are formed in the moving belt.

[0018] The coating mechanism includes: a linear driving member f, which is installed on the U-shaped frame; a coating nozzle, which is installed on the output end of the linear driving member f.

[0019] The beneficial effects of the present invention are as follows:

[0020] (1) In the present invention, the linear drive member e drives the moving belt of the adsorption assembly to contact the first straight edges of the lower housing and the upper housing. The pipeline introduces negative pressure into the square groove, and the negative pressure passes through the through holes to adsorb the first straight edges of the lower housing and the upper housing, so as to correct the welding edges of the lower housing and the upper housing by adsorption, align the welding seams of the lower housing and the upper housing, and avoid the inward (slight) bending deformation of the welding edges of the lower housing and the upper housing, which may cause uneven weld seams during welding. The laser welding head performs laser welding on the gap between the lower housing and the upper housing. The slider slides on the second guide rail, and the moving belt slides along the groove to perform laser welding on the first straight edges of the lower housing and the upper housing. Similarly, laser welding is performed on the second straight edge, the third straight edge, and the fourth straight edge, and the antireflection agent enhances the laser welding effect.

[0021] (2) In the present invention, the linear drive member c drives the grinding belt to move forward and contact the welding seam between the lower housing and the upper housing. The rotary drive member d drives the drive rod to rotate through the fourth belt, driving the grinding belt to move, and grinding the welding seam between the lower housing and the upper housing. The moving plate a moves on the first guide rail to perform linear grinding on the welding seam between the lower housing and the upper housing. The rotary drive member a drives the moving rod a to rotate through the first belt, driving the first clamping plate to rotate, driving the transmission rod to rotate through the second belt, and driving the moving rod b and the second clamping plate to rotate through the third belt. The first clamping plate and the second clamping plate rotate synchronously to drive the clamped lower housing and upper housing to rotate, and the grinding belt grinds the welding seams around the lower housing and the upper housing.

[0022] (3) In the present invention, the rotary drive member e drives the U-shaped frame to rotate, driving the coating nozzle to face the lower housing and the upper housing. The linear drive member f drives the coating nozzle to contact the welding seam between the lower housing and the upper housing. The coating nozzle applies the antireflection agent to the welding seam between the lower housing and the upper housing. With the rotation of the lower housing and the upper housing, the antireflection agent is further applied to the welding seams around the lower housing and the upper housing. The ground welding seam area is conducive to absorbing the antireflection agent.

[0023] (4) The grinding assembly of the present invention can grind the straight welding area ( Figure 14 state a in), and since the grinding belt is flexible and bendable, the grinding belt can grind the convex welding area ( Figure 14 state b in). When it is necessary to grind the concave welding area ( Figure 14 state c in), the linear drive member d drives the driving wheel to move forward, squeezing the grinding belt into the concave welding area, and the movement of the grinding belt can grind the concave welding area, realizing the grinding of straight, convex, and concave welding areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the first overall structure of the present invention;

[0025] Figure 2Schematic diagram of the second overall structure of the present invention;

[0026] Figure 3 Schematic diagram of the L-shaped frame and linear drive member a of the present invention;

[0027] Figure 4 For the present invention Figure 3 Enlarged schematic diagram at position A in;

[0028] Figure 5 Schematic diagram of the clamping synchronization mechanism of the present invention;

[0029] Figure 6 Schematic diagram of the grinding mechanism of the present invention;

[0030] Figure 7 First-angle schematic diagram of the grinding assembly of the present invention;

[0031] Figure 8 Second-angle schematic diagram of the grinding assembly of the present invention;

[0032] Figure 9 Schematic diagram of the moving frame of the present invention;

[0033] Figure 10 Schematic diagram of the laser welding mechanism of the present invention;

[0034] Figure 11 Schematic diagram of the adsorption assembly of the present invention;

[0035] Figure 12 Schematic diagram of the rotating frame of the present invention;

[0036] Figure 13 Schematic diagram of the moving belt of the present invention;

[0037] Figure 14 Schematic diagram of the states of the straight, convex, and concave welding areas of the present invention;

[0038] Figure 15 Schematic diagram of the clamping block and the third card slot of the present invention;

[0039] Figure 16 Schematic diagram of the states of the first straight edge, second straight edge, third straight edge, and fourth straight edge of the present invention;

[0040] Figure 17 Schematic diagram of the structure of a rudder wing structural member in an existing technology.

[0041] The reference numerals in this application are as follows: 100, workbench; 101, bearing seat; 1011, receiving groove; 102, L-shaped frame; 103, linear drive member a; 104, moving rod a; 105, first clamping plate; 106, rotary drive member a; 107, rotary sleeve a; 1071, first card slot; 108, first bump; 109, first belt; 110, manipulator; 111, L-shaped plate; 2, clamping synchronization mechanism; 201, fixed frame; 202, support frame; 203, linear drive member b; 204, moving rod b; 205, second clamping plate; 21, transmission assembly; 211, transmission rod; 212, second belt; 213, second bump; 214, rotary sleeve b; 2141, second card slot; 215, third belt; 3, grinding mechanism; 300, clamping block; 301, fixing plate; 302, first guide rail; 303, moving plate a; 304, rotary drive member c; 305, rotary plate; 306, linear drive member c; 31, grinding assembly; 311, moving frame; 312, drive rod; 313, rotary rod; 314, grinding belt; 3141, third card slot; 315, rotary drive member d; 316, fourth belt; 317, linear drive member d; 318, bending frame; 319, drive wheel; 4, coating mechanism; 401, linear drive member f; 402, coating nozzle; 5, laser welding mechanism; 501, fixed connection plate; 502, second guide rail; 503, sliding block; 504, rotary drive member e; 505, U-shaped frame; 51, laser welding assembly; 511, linear drive member e; 512, moving frame; 513, rotary frame; 514, connecting rod; 515, rotary drive member f; 516, fifth belt; 517, laser welding head; 52, adsorption assembly; 521, support; 5211, groove; 5212, square groove; 522, rotary wheel; 523, moving belt; 5231, through hole; 524, pipeline; 801, upper housing; 802, lower housing. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] Embodiment 1: Figures 1 - 16 As shown, this embodiment provides a laser welding device for aircraft rudder wing structural parts, including a workbench 100, a bearing seat 101 is installed on the workbench 100, a receiving groove 1011 is opened in the bearing seat 101, an L-shaped frame 102 is installed in the workbench 100, a linear driving member a103 is installed on the L-shaped frame 102, a motion rod a104 is installed at the output end of the linear driving member a103, and a first clamping plate 105 is installed on the motion rod a104;

[0046] An L-shaped plate 111 is installed in the workbench 100, a rotating driving member a106 is installed on the L-shaped plate 111, a rotating sleeve a107 is rotatably installed in the workbench 100, a first slot 1071 is provided in the rotating sleeve a107, a first protrusion 108 is installed on the motion rod a104, the first protrusion 108 rotates in the first slot 1071, and the output shaft of the rotating driving member a106 and the rotating sleeve a107 are connected by a first belt 109; a manipulator 110 is provided on one side of the workbench 100, and also includes: a clamping synchronization mechanism 2, a grinding mechanism 3, a coating mechanism 4 and a laser welding mechanism 5. A material tray is provided on one side of the workbench 100, and a lower shell 802 and an upper shell 801 are placed on the material tray.

[0047] In this embodiment, the manipulator 110 first places the lower shell 802 in the receiving groove 1011, and then places the upper shell 801 above the lower shell 802 in the receiving groove 1011. At this time, the lower shell 802 and the upper shell 801 are both located in the receiving groove 1011. Due to the peripheral limit of the receiving groove 1011, the positions of the lower shell 802 and the upper shell 801 are aligned.

[0048] likeFigures 1 - 16 As shown, the clamping synchronization mechanism 2 includes: a fixed frame 201, which is installed on the workbench 100; a support frame 202, which is installed on the fixed frame 201; a linear drive member b203, which is installed on the support frame 202; a moving rod b204, which is installed at the output end of the linear drive member b203; a second clamping plate 205, which is installed on the moving rod b204; and a transmission assembly 21, which is arranged on the fixed frame 201.

[0049] The transmission assembly 21 includes a transmission rod 211 rotatably arranged in the fixed frame 201. The transmission rod 211 and the output shaft of the rotary drive member a106 are connected by a second belt 212. A second convex block 213 is installed on the moving rod b204. A rotary sleeve b214 is rotatably arranged on the fixed frame 201. A second card slot 2141 is formed in the rotary sleeve b214. The second convex block 213 slides in the second card slot 2141. The rotary sleeve b214 and the transmission rod 211 are connected by a third belt 215.

[0050] In this embodiment, the linear drive member b203 drives the moving rod b204 to move downward, driving the second clamping plate 205 to move and press above the upper housing 801. At this time, the first clamping plate 105 and the second clamping plate 205 clamp the lower housing 802 and the upper housing 801. The linear drive member a103 and the linear drive member b203 drive the first clamping plate 105 and the second clamping plate 205 to move upward, driving the (aligned) lower housing 802 and the upper housing 801 to move upward to the processing position.

[0051] As Figures 1 - 16 shown, the grinding mechanism 3 includes: a fixing plate 301, which is installed on the workbench 100; a first guide rail 302, which is installed on the fixing plate 301; a moving plate a303, which is slidably arranged on the first guide rail 302; a rotary drive member c304, which is installed on the moving plate a303; a rotary plate 305, which is installed at the output end of the rotary drive member c304; a linear drive member c306, which is installed on the rotary plate 305; and a grinding assembly 31, which is installed at the output end of the linear drive member c306. The movement of the moving plate a303 on the first guide rail 302 is preferably driven by a cylinder.

[0052] The grinding assembly 31 includes a moving frame 311, on which the output end of the linear driving member c306 is installed. A driving rod 312 and two rotating rods 313 are rotatably provided on the moving frame 311. A grinding belt 314 is sleeved on the outer sides of the driving rod 312 and the two rotating rods 313. A rotating driving member d315 is installed on the moving frame 311. The output end of the rotating driving member d315 and the driving rod 312 are connected by a fourth belt 316. A plurality of third card slots 3141 are provided in the grinding belt 314. A card block 300 is installed on the driving rod 312 and the rotating rod 313. The card block 300 is inserted into the third card slot 3141. The rotation of the driving rod 312 drives the card block 300 to rotate, thereby driving the grinding belt 314 to move.

[0053] A linear driving member d317 is provided on one side of the moving frame 311 , and a bending frame 318 is installed on the output end of the linear driving member d317 . A driving wheel 319 is rotatably provided on the bending frame 318 , and the driving wheel 319 is arranged between the driving rod 312 and the two rotating rods 313 .

[0054] In this embodiment, the linear drive member c306 drives the grinding belt 314 to move forward and contact the welding gap between the lower shell 802 and the upper shell 801. The rotary drive member d315 drives the driving rod 312 to rotate through the fourth belt 316, driving the grinding belt 314 to move and grind the welding gap between the lower shell 802 and the upper shell 801. The moving plate a303 moves on the first guide rail 302 and performs linear grinding on the welding gap between the lower shell 802 and the upper shell 801.

[0055] The rotating driving member a106 drives the moving rod a104 to rotate through the first belt 109, drives the first clamping plate 105 to rotate, drives the transmission rod 211 to rotate through the second belt 212, drives the moving rod b204 and the second clamping plate 205 to rotate through the third belt 215, the first clamping plate 105 and the second clamping plate 205 rotate synchronously, driving the clamped lower shell 802 and upper shell 801 to rotate, and the grinding belt 314 grinds the welding gaps around the lower shell 802 and the upper shell 801.

[0056] It should be noted that the grinding assembly 31 in this embodiment can be used for the straight welding area ( Figure 14 Since the grinding belt 314 is flexible and bendable, the grinding belt 314 can grind the convex welding area ( Figure 14 b) in the grinding process. When the concave welding area ( Figure 14 When grinding in the c state), the linear drive member d317 drives the driving wheel 319 to move forward, squeezing the grinding belt 314 into the concave welding area. The movement of the grinding belt 314 can grind the concave welding area, thereby realizing the grinding of straight, convex and concave welding areas.

[0057] likeFigures 1 - 16 As shown, the laser welding mechanism 5 includes: a fixed plate 501, which is installed on the workbench 100; a second guide rail 502, which is installed on the fixed plate 501; a sliding block 503, which is slidably arranged on the second guide rail 502; a rotating driving member e504, which is installed on the sliding block 503; a U-shaped frame 505, which is installed on the output end of the rotating driving member e504; and a laser welding assembly 51, which is installed on the U-shaped frame 505.

[0058] The laser welding assembly 51 includes a linear driving component e511, and the linear driving component e511 is installed on the U-shaped frame 505. A movable frame 512 is installed on the output end of the linear driving component e511. A rotating frame 513 is rotatably provided on the movable frame 512. Connecting rods 514 are provided on both sides of the rotating frame 513. A rotating driving component f515 is installed on the movable frame 512. The rotating driving component f515 and one of the connecting rods 514 are connected by a fifth belt 516. A laser welding head 517 is installed on the rotating frame 513, and an adsorption assembly 52 is installed on the rotating frame 513.

[0059] The adsorption assembly 52 includes: a bracket 521, two brackets 521 are symmetrically installed on the rotating frame 513, and a groove 5211 is opened in the bracket 521; a rotating wheel 522, two rotating wheels 522 are rotatably arranged on both sides of the bracket 521; a moving belt 523, the moving belt 523 is sleeved on the outside of the two rotating wheels 522, and the moving belt 523 slides in the groove 5211, and a pipe 524 is installed on the other connecting rod 514, a square groove 5212 is opened in the bracket 521, the pipe 524 is connected to the square groove 5212, and a plurality of through holes 5231 are opened in the moving belt 523.

[0060] The coating mechanism 4 includes: a linear driving member f401, which is mounted on the U-shaped frame 505; and a coating nozzle 402, which is mounted on the output end of the linear driving member f401.

[0061] In this embodiment, the rotary drive member e504 drives the U-shaped frame 505 to rotate, driving the coating nozzle 402 toward the lower shell 802 and the upper shell 801, and the linear drive member f401 drives the coating nozzle 402 to contact the welding gap between the lower shell 802 and the upper shell 801. The coating nozzle 402 applies the anti-transmittance agent to the welding gap between the lower shell 802 and the upper shell 801, and cooperates with the rotation of the lower shell 802 and the upper shell 801 to further apply the anti-transmittance agent to the welding gap around the lower shell 802 and the upper shell 801. The polished welding gap area is conducive to absorbing the anti-transmittance agent.

[0062] It should be noted that the coating nozzle 402 is connected to the liquid supply device through a hose. The liquid supply device is a prior art and will not be described in detail here. The liquid supply device injects the anti-reflection agent into the coating nozzle 402 through the hose to achieve the supply of the anti-reflection agent.

[0063] As Figure 16 shown, d is the first straight edge, e is the second straight edge, f is the third straight edge, and g is the fourth straight edge.

[0064] In this embodiment, the driving lower housing 802 and the upper housing 801 rotate to make the first straight edge correspond to the laser welding mechanism 5. The linear driving member e511 drives the moving belt 523 of the adsorption assembly 52 to contact the first straight edges of the lower housing 802 and the upper housing 801. The pipeline 524 introduces negative pressure into the square groove 5212, and the negative pressure passes through the through hole 5231 to adsorb the first straight edges of the lower housing 802 and the upper housing 801, so as to perform adsorption correction on the welding edges of the lower housing 802 and the upper housing 801, align the welding seams of the lower housing 802 and the upper housing 801, and avoid the welding edges of the lower housing 802 and the upper housing 801 bending inward (slightly) during welding, resulting in uneven welds;

[0065] The laser welding head 517 performs laser welding on the gap between the lower housing 802 and the upper housing 801. The sliding block 503 slides on the second guide rail 502, and the moving belt 523 slides along the groove 5211 to perform laser welding on the first straight edge of the lower housing 802 and the upper housing 801. Similarly, laser welding is performed on the second straight edge, the third straight edge, and the fourth straight edge.

[0066] It should be noted that the alignment (adsorption correction) of the welding seams of the lower housing 802 and the upper housing 801 is for the straight welding area. During the process of the sliding block 503 sliding on the second guide rail 502, the moving belt 523 slides along the groove 5211, and the area of the moving belt 523 corresponding to the square groove 5212 always performs adsorption correction on the welding edges of the lower housing 802 and the upper housing 801.

[0067] Embodiment 2: As Figures 1 - 16 shown, this embodiment provides a welding method for a laser welding device of an aircraft rudder wing structural member, including the following steps:

[0068] Step 1. Feeding process: The manipulator 110 first places the lower housing 802 in the receiving groove 1011, and then places the upper housing 801 above the lower housing 802 in the receiving groove 1011. At this time, both the lower housing 802 and the upper housing 801 are located in the receiving groove 1011. Due to the peripheral limitation of the receiving groove 1011, the positions of the lower housing 802 and the upper housing 801 are aligned;

[0069] Step 2, clamping process: the linear drive component b203 drives the moving rod b204 to move downward, driving the second clamping plate 205 to move and press on the upper shell 801. At this time, the first clamping plate 105 and the second clamping plate 205 clamp the lower shell 802 and the upper shell 801. The linear drive component a103 and the linear drive component b203 drive the first clamping plate 105 and the second clamping plate 205 to move upward, driving the (aligned) lower shell 802 and the upper shell 801 to move upward to the processing position; the first clamping plate 105 and the second clamping plate 205 are provided with rubber blocks to enhance the clamping effect.

[0070] Step 3, grinding process: the linear driving member c306 drives the grinding belt 314 to move forward, and contacts with the welding gap between the lower shell 802 and the upper shell 801; the rotating driving member d315 drives the driving rod 312 to rotate through the fourth belt 316, and drives the grinding belt 314 to move, and grinds the welding gap between the lower shell 802 and the upper shell 801; the moving plate a303 moves on the first guide rail 302, and performs linear grinding on the welding gap between the lower shell 802 and the upper shell 801;

[0071] The rotating driving member a106 drives the moving rod a104 to rotate through the first belt 109, drives the first clamping plate 105 to rotate, drives the transmission rod 211 to rotate through the second belt 212, drives the moving rod b204 and the second clamping plate 205 to rotate through the third belt 215, and the first clamping plate 105 and the second clamping plate 205 rotate synchronously, driving the clamped lower shell 802 and the upper shell 801 to rotate, and the grinding belt 314 grinds the welding gaps around the lower shell 802 and the upper shell 801;

[0072] Step 4, coating process: the rotary drive member e504 drives the U-shaped frame 505 to rotate, drives the coating nozzle 402 toward the lower shell 802 and the upper shell 801, and the linear drive member f401 drives the coating nozzle 402 to contact the welding gap between the lower shell 802 and the upper shell 801. The coating nozzle 402 coats the anti-permeability agent on the welding gap between the lower shell 802 and the upper shell 801, and cooperates with the rotation of the lower shell 802 and the upper shell 801 to further coat the anti-permeability agent on the welding gap around the lower shell 802 and the upper shell 801. The polished welding gap area is conducive to absorbing the anti-permeability agent;

[0073] Step Five, First Welding Process: Drive the lower housing 802 and the upper housing 801 to rotate so that the first straight edge corresponds to the position of the laser welding mechanism 5. The linear drive member e511 drives the moving belt 523 of the adsorption assembly 52 to contact the first straight edges of the lower housing 802 and the upper housing 801. The pipeline 524 introduces negative pressure into the square groove 5212, and the negative pressure passes through the through hole 5231 to adsorb the first straight edges of the lower housing 802 and the upper housing 801, and corrects the welding edges of the lower housing 802 and the upper housing 801 by adsorption, so that the welding gaps of the lower housing 802 and the upper housing 801 are aligned, avoiding inward (slight) bending deformation of the welding edges of the lower housing 802 and the upper housing 801, resulting in uneven weld seams during welding;

[0074] The laser welding head 517 performs laser welding on the gap between the lower housing 802 and the upper housing 801. The slider 503 slides on the second guide rail 502, and the moving belt 523 slides along the groove 5211 to perform laser welding on the first straight edges of the lower housing 802 and the upper housing 801. Similarly, laser welding is performed on the second straight edge, the third straight edge, and the fourth straight edge, and the antireflection agent enhances the laser welding effect;

[0075] Step Six, Second Welding Process: Drive the lower housing 802 and the upper housing 801 to rotate, and the laser welding head 517 welds the circumferential welds of the lower housing 802 and the upper housing 801. After welding, the welding area can be polished.

[0076] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A laser welding device for aircraft rudder wing structural parts, comprising a workbench (100), characterized in that: A bearing seat (101) is installed on the workbench (100), a receiving groove (1011) is provided in the bearing seat (101), an L-shaped frame (102) is installed in the workbench (100), a linear drive member a (103) is installed on the L-shaped frame (102), a motion rod a (104) is installed at the output end of the linear drive member a (103), and a first clamping plate (105) is installed on the motion rod a (104); An L-shaped plate (111) is installed in the workbench (100), a rotary drive member a (106) is installed on the L-shaped plate (111), a rotary sleeve a (107) is rotatably installed in the workbench (100), a first slot (1071) is provided in the rotary sleeve a (107), a first protrusion (108) is installed on the motion rod a (104), the first protrusion (108) slides in the first slot (1071), and an output shaft of the rotary drive member a (106) and the rotary sleeve a (107) are connected to each other by a first belt (109); a manipulator (110) is provided on one side of the workbench (100), and further comprises: a clamping synchronization mechanism (2), a grinding mechanism (3), a coating mechanism (4) and a laser welding mechanism (5); The laser welding mechanism (5) comprises: a fixing plate (501), the fixing plate (501) being mounted on the workbench (100); a second guide rail (502), the second guide rail (502) being mounted on the fixing plate (501); a sliding block (503), the sliding block (503) being slidably disposed on the second guide rail (502); a rotating driving member e (504), the rotating driving member e (504) being mounted on the sliding block (503); a U-shaped frame (505), the U-shaped frame (505) being mounted on the output end of the rotating driving member e (504); and a laser welding assembly (51), the laser welding assembly (51) being mounted on the U-shaped frame (505); The laser welding assembly (51) comprises a linear drive member e (511), the linear drive member e (511) is mounted on the U-shaped frame (505), a moving frame (512) is mounted on the output end of the linear drive member e (511), a rotating frame (513) is rotatably mounted on the moving frame (512), an adsorption assembly (52) is mounted on the rotating frame (513), and connecting rods (514) are provided on both sides of the rotating frame (513); The adsorption assembly (52) comprises: a bracket (521), wherein two brackets (521) are symmetrically mounted on the rotating frame (513), and a groove (5211) is provided in the bracket (521); a rotating wheel (522), wherein the two rotating wheels (522) are rotatably arranged on both sides of the bracket (521); and a moving belt (523), wherein the moving belt (523) is sleeved on the outside of the two rotating wheels (522), and the moving belt (523) slides in the groove (5211); a pipe (524) is installed on one of the connecting rods (514); a square groove (5212) is provided in the bracket (521), and the pipe (524) is communicated with the square groove (5212); and a plurality of through holes (5231) are provided in the moving belt (523).

2. The laser welding equipment for aircraft rudder wing structure according to claim 1, characterized in that: The clamping synchronization mechanism (2) comprises: A fixing frame (201), the fixing frame (201) being mounted on the workbench (100); A support frame (202), the support frame (202) being mounted on the fixing frame (201); A linear drive member b (203), the linear drive member b (203) being mounted on the support frame (202); A motion rod b (204), the motion rod b (204) being mounted on an output end of the linear drive member b (203); A second clamping plate (205), the second clamping plate (205) being mounted on the movement rod b (204); A transmission assembly (21), wherein the transmission assembly (21) is arranged on the fixing frame (201).

3. The laser welding equipment for aircraft rudder wing structure according to claim 2, characterized in that: The transmission assembly (21) comprises a transmission rod (211) rotatably arranged in the fixed frame (201); the transmission rod (211) and the output shaft of the rotating driving member a (106) are connected in transmission via a second belt (212); a second protrusion (213) is mounted on the moving rod b (204); a rotating sleeve b (214) is rotatably arranged on the fixed frame (201); a second slot (2141) is provided in the rotating sleeve b (214); the second protrusion (213) slides in the second slot (2141); and the rotating sleeve b (214) and the transmission rod (211) are connected in transmission via a third belt (215).

4. The aircraft rudder wing structure laser welding equipment according to claim 1, characterized in that: The grinding mechanism (3) comprises: A fixing plate (301), the fixing plate (301) being mounted on the workbench (100); A first guide rail (302), the first guide rail (302) being mounted on the fixing plate (301); A moving plate a (303), the moving plate a (303) being slidably disposed on the first guide rail (302); A rotating driving member c (304), wherein the rotating driving member c (304) is mounted on the moving plate a (303); A rotating plate (305), the rotating plate (305) being mounted on an output end of the rotating driving member c (304); A linear driving member c (306), wherein the linear driving member c (306) is mounted on the rotating plate (305); A grinding component (31), wherein the grinding component (31) is mounted on an output end of the linear drive member c (306).

5. The aircraft rudder wing structure laser welding equipment according to claim 4, characterized in that: The grinding assembly (31) comprises a moving frame (311), the output end of the linear driving member c (306) is mounted with the moving frame (311), a driving rod (312) and two rotating rods (313) are rotatably mounted on the moving frame (311), a grinding belt (314) is sleeved on the outer sides of the driving rod (312) and the two rotating rods (313), a rotating driving member d (315) is mounted on the moving frame (311), and the output end of the rotating driving member d (315) and the driving rod (312) are connected in transmission via a fourth belt (316).

6. The aircraft rudder wing structure laser welding equipment according to claim 5, characterized in that: A linear drive member d (317) is provided on one side of the motion frame (311); a bending frame (318) is installed on the output end of the linear drive member d (317); a driving wheel (319) is rotatably provided on the bending frame (318); and the driving wheel (319) is provided between the driving rod (312) and the two rotating rods (313).

7. The aircraft rudder wing structure laser welding equipment according to claim 6, characterized in that: A rotating drive member f (515) is mounted on the movable frame (512); the rotating drive member f (515) and another connecting rod (514) are connected in transmission via a fifth belt (516); and a laser welding head (517) is mounted on the rotating frame (513).

8. The aircraft rudder wing structure laser welding equipment according to claim 7, characterized in that: The smearing mechanism (4) comprises: A linear drive member f (401), the linear drive member f (401) being mounted on the U-shaped frame (505); A coating nozzle (402), the coating nozzle (402) being mounted on an output end of the linear drive member f (401).

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