Laser welding system and welding method for aviation aluminum alloy sliding rail sleeve

Abstract

The invention belongs to the technical field of aviation accessory production, and particularly relates to a laser welding system and method for an aviation aluminum alloy sliding rail sleeve. A flange pipe adsorption assembly is used for adsorbing and locking a flange pipe and can drive the flange pipe to rotate; the inner support assembly is used for providing welding inner support for the sleeve and finely adjusting and correcting the radian of the sleeve; the sleeve overturning driving assembly is used for driving the sleeve to synchronously rotate along with the flange pipe; the outer welding assembly and the inner welding assembly are used for conducting double-face welding on the butt joint portion of the sleeve and the flange pipe; the inner stamping assembly and the outer pressure-bearing assembly are jointly used for stamping and forming a drainage pipe with a drainage hole at the bottom of the sealing sleeve of the sleeve. In this way, automatic welding of the sleeve and the flange pipe is achieved, the automation degree is high, and industrial assembly of the large-specification aviation aluminum alloy sliding rail sleeve is facilitated; and meanwhile, reliable inner support can be provided in the welding process, the welding part is heated evenly through double-face welding, stress deformation is not prone to occurring, and the welding effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation parts production, and specifically relates to a laser welding system and a welding method for an aviation aluminum alloy slide rail sleeve. Background Art

[0002] The main function of the slide rail sleeve is to provide movement space for the slide rail in the aircraft wing tank, so it is often a thin-walled, shell-shaped, cantilever beam force-bearing structure, whose central axis is consistent with the movement trajectory of the slide rail and is arc-shaped, that is, an arc-shaped axis curved sleeve.

[0003] The traditional laser welding system of aviation aluminum alloy slide rail sleeves was found to have some shortcomings during the assembly and production process of aviation aluminum alloy slide rail sleeves: first, it cannot realize automatic welding of the sleeve and the flange pipe, and the degree of automation is low, which is not conducive to the industrial assembly of large-size aviation aluminum alloy slide rail sleeves; second, it cannot provide reliable internal support during the welding process, nor can it perform double-sided welding on the welding part, resulting in stress deformation at the welding part due to uneven heating, and the welding effect is not ideal; third, the assembled aviation aluminum alloy slide rail sleeve has poor tensile resistance and is easily damaged by collision, and the curvature of the sleeve cannot be fine-tuned according to demand; fourth, it needs to be welded to install a drain pipe on the envelope, and the drain pipe cannot be directly formed on the envelope.

[0004] Therefore, it is necessary to optimize and improve the laser welding system of traditional aviation aluminum alloy slide rail sleeves. Summary of the invention

[0005] The purpose of the present invention is to overcome at least one of the above-mentioned problems existing in the prior art and to provide a laser welding system and a welding method for an aviation aluminum alloy slide rail sleeve.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions: The present invention provides a laser welding system for aviation aluminum alloy slide rail sleeves, comprising a horizontal plate seat, a vertical plate seat, an external welding assembly, an external pressure-bearing assembly, a flange pipe adsorption assembly, an internal welding assembly, a sleeve flipping drive assembly, an internal support assembly and an internal stamping assembly; The horizontal plate seat and the vertical plate seat are fixed vertically, the horizontal plate seat is installed with an external welding assembly and an external pressure-bearing assembly, the vertical plate seat is installed with a flange pipe adsorption assembly, an internal welding assembly and a sleeve flip drive assembly, and the sleeve flip drive assembly is connected with an internal stamping assembly through an internal support assembly; The flange tube adsorption assembly can adsorb and lock the flange tube and drive it to rotate; the internal support assembly can provide welding internal support for the sleeve and fine-tune its curvature; the sleeve flipping drive assembly can drive the sleeve to rotate synchronously with the flange tube; the internal support assembly includes an arc plate column, a straight plate column, a first push rod, a first support block, a second push rod and a second support block. One end of the arc plate column is fixedly connected to the outer end of the support shaft, and the other end of the arc plate column is provided with a straight plate column connected to it as an integral whole. The upper and lower side surfaces of the front of the arc plate column are each equipped with at least one first push rod, and the movable end of the first push rod is equipped with a first support block that can extend into the frontmost arched anti-tension ring of the sleeve, and the upper and lower side surfaces of the rear of the arc plate column are each equipped with at least one second push rod, and the movable end of the second push rod is equipped with a second support block that can extend into the rearmost arched anti-tension ring in the sleeve; The external welding assembly can weld the external welding line of the sleeve and the flange pipe joint; the internal welding assembly can weld the internal welding line of the sleeve and the flange pipe joint; The inner punching component and the outer pressure-bearing component are used together to punch and form a drainage pipe with drainage holes at the bottom of the sleeve envelope.

[0007] Furthermore, in the laser welding system of the above-mentioned aviation aluminum alloy slide rail sleeve, the sleeve includes a sleeve body and a sleeve, one end of the sleeve body is open, and the other end of the sleeve body is provided with a sleeve integrally connected thereto, and the sleeve body is provided with a plurality of arched tensile rings; the finished sleeve is provided with a drainage pipe with drainage holes at the bottom of the sleeve.

[0008] Furthermore, in the laser welding system of the above-mentioned aviation aluminum alloy slide rail sleeve, the flange tube is composed of a rectangular tube portion and a rectangular flange end plate, and the cross-sectional specifications of the rectangular tube portion match the cross-sectional specifications of the sleeve body.

[0009] Furthermore, in the laser welding system of the above-mentioned aviation aluminum alloy slide rail sleeve, the flange tube adsorption assembly includes a first motor, a driving gear, a driven disc, a suction cup support plate and a vacuum suction cup, the first motor is embedded and fixed on the vertical plate seat, the output end of the first motor is equipped with a driving gear meshing with the driven disc, and the side wall of the driven disc is fixed with a vacuum suction cup through a suction cup support plate; the vertical plate seat is provided with a first movable cavity for facilitating the rotation of the driving gear, the driven disc and the suction cup support plate, and the shape of the vacuum suction cup cooperates with the shape of the rectangular flange end plate in the flange tube.

[0010] Furthermore, in the laser welding system of the above-mentioned aviation aluminum alloy slide rail sleeve, the sleeve flipping drive assembly includes a second motor, a support shaft and a columnar counterweight block, the second motor is fixed to the vertical plate seat through a motor bracket, the output end of the second motor is fixed with a support shaft, and the outer side of the support shaft is sleeved and fixed with a columnar counterweight block; the vertical plate seat is provided with a second movable cavity for facilitating the rotation of the support shaft and the columnar counterweight block.

[0011] Furthermore, in the laser welding system of the above-mentioned aviation aluminum alloy slide rail sleeve, the external welding component includes a first slewing bearing, a first slide rail, a first slider, a third push rod, a first mounting block and a first laser welding head, the fixed ring portion of the first slewing bearing is embedded and fixed in a horizontal plate seat, the first slide rail is fixed to the outer side of the moving ring portion of the first slewing bearing, the first slider constituting a linear guide pair therewith is mounted on the outer side of the first slide rail, the third push rod is fixed to the outer side of the first slider, and the movable end of the third push rod is mounted with a first laser welding head via the first mounting block.

[0012] Furthermore, in the laser welding system of the above-mentioned aviation aluminum alloy slide rail sleeve, the internal welding component includes a second slewing bearing, a second slide rail, a second slider, a fourth push rod, a second mounting block and a second laser welding head, the fixed ring portion of the second slewing bearing is embedded and fixed in the vertical plate seat, the second slide rail is fixed to the outer side of the moving ring portion of the second slewing bearing, the second slide rail is installed on the outer side of the second slide rail to form a linear guide pair, the fourth push rod is fixed to the outer side of the second slider, and the movable end of the fourth push rod is installed with a second laser welding head via the second mounting block.

[0013] Furthermore, in the laser welding system of the above-mentioned aviation aluminum alloy slide rail sleeve, the external pressure-bearing component includes a third slide rail, a third slider, a fifth push rod, a mounting frame, a pressure block, a sixth push rod and a punch rod, the third slide rail is fixed on the horizontal plate seat, the outer side of the third slide rail is equipped with a third slider which forms a linear guide pair therewith, the outer side of the third slider is fixed with a fifth push rod, the movable end of the fifth push rod is equipped with a pressure block through the mounting frame, the upper end of the pressure block is provided with a drainage forming groove which matches the shape of the outer wall of the drainage pipe, the bottom end of the drainage forming groove is provided with a first punch rod avoidance groove, the sixth push rod is installed in the mounting frame, and the movable end of the sixth push rod is provided with a punch rod for punching out drainage holes on the outer end plate of the drainage pipe.

[0014] Furthermore, in the laser welding system of the above-mentioned aviation aluminum alloy slide rail sleeve, the inner stamping assembly includes a fourth slide rail, a fourth slider, a seventh push rod and a punch, the fourth slide rail is fixed to the lower side of the straight plate column in the inner support assembly, the outer side of the fourth slide rail is equipped with a fourth slider which forms a linear guide pair therewith, the outer side of the fourth slider is fixed with a seventh push rod, and the movable end of the seventh push rod is equipped with a punch which matches the shape of the inner wall of the drain pipe.

[0015] The present invention also provides a laser welding method for an aviation aluminum alloy slide rail sleeve, which is implemented based on the above-mentioned laser welding system for the aviation aluminum alloy slide rail sleeve and includes the following steps: S1. Use the flange pipe adsorption component to adsorb and lock the flange pipe, use the inner support component to provide welding inner support for the sleeve, and first fine-tune the curvature of the sleeve according to the curvature requirements; S2. Use the external welding assembly and the internal welding assembly to synchronously weld the external and internal welding lines of the sleeve and the flange pipe joint. After each side of the welding is completed, use the flange pipe adsorption assembly to drive the flange pipe to flip 90 degrees, and use the sleeve flip drive assembly to drive the sleeve to rotate synchronously with the flange pipe. S3. Use the inner stamping component and the outer pressure-bearing component to stamp out a drainage pipe with drainage holes at the bottom of the sleeve envelope.

[0016] The beneficial effects of the present invention are: 1. The present invention provides a laser welding system for aviation aluminum alloy slide rail sleeves, including a horizontal plate seat, a vertical plate seat, an external welding assembly, an external pressure-bearing assembly, a flange pipe adsorption assembly, an internal welding assembly, a sleeve flip drive assembly, an internal support assembly and an internal stamping assembly. Each assembly cooperates with each other, and the flange pipe is adsorbed and locked by the flange pipe adsorption assembly and can be driven to rotate; the internal support assembly is used to provide welding internal support for the sleeve and fine-tune its curvature; the sleeve flip drive assembly is used to drive the sleeve to rotate synchronously with the flange pipe; the external welding assembly and the internal welding assembly are used to double-sidedly weld the sleeve and the flange pipe joint part; the internal stamping assembly and the external pressure-bearing assembly are used to stamp and form a drain pipe with a drain hole at the bottom of the sleeve envelope. In this way, the automatic welding of the sleeve and the flange pipe is realized, the degree of automation is high, and it is conducive to the industrial assembly of large-size aviation aluminum alloy slide rail sleeves; at the same time, reliable internal support can be provided during the welding process, and the welding part can be double-sidedly welded, the welding part is evenly heated, and stress deformation is not easy to occur, and the welding effect is good.

[0017] 2. The aviation aluminum alloy slide rail sleeve prepared by the present invention is provided with a plurality of arched tensile rings, has good tensile resistance, and is not easily damaged by collision. The curvature of the sleeve can be fine-tuned and corrected according to needs to ensure the smooth realization of its function.

[0018] 3. The laser welding system of the present invention can directly form a drain pipe with a drain hole on the sleeve cover without the need for additional welding and installation of the drain pipe, and has a better anti-leakage effect.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the composition of the laser welding system of the present invention; Figure 2 It is a schematic diagram of the structure of the aviation aluminum alloy slide rail sleeve in the present invention; Figure 3 It is a structural cross-sectional view of the aviation aluminum alloy slide rail sleeve in the present invention; Figure 4 It is a schematic diagram of the sleeve structure of the drainage pipe to be stamped and formed in the present invention; Figure 5 It is a side view structural schematic diagram of the flange pipe in the present invention; Figure 6 It is a structural schematic diagram of the flange pipe adsorption assembly in the present invention; Figure 7 It is a structural schematic diagram of the driving gear and the driven disc in the present invention; Figure 8 It is a structural schematic diagram of the sleeve flip driving assembly in the present invention; Fig. 9 It is a structural schematic diagram of the inner support assembly in the present invention; Fig.10 It is a schematic diagram of the structure of the foreign welding assembly of the present invention; Fig.11 It is a schematic diagram of the structure of the inner welding assembly in the present invention; Fig.12 It is a structural schematic diagram of the external pressure-bearing components in the present invention; Fig.13 It is a structural schematic diagram of the inner stamping component in the present invention; Fig.14 It is a schematic diagram of the forming principle of the drainage pipe in the present invention; In the accompanying drawings, the components represented by the reference numerals are as follows: 1-Horizontal plate seat; 2-Standard seat; 3-external welding assembly, 301-first slewing bearing, 302-first slide rail, 303-first slider, 304-third push rod, 305-first mounting block, 306-first laser welding head; 4-external pressure-bearing assembly, 401-third slide rail, 402-third slider, 403-fifth push rod, 404-installation frame, 405-pressure bearing block, 406-drainage forming groove, 407-first punch avoidance groove, 408-sixth push rod, 409-punch rod; 5-flange pipe adsorption assembly, 501-first motor, 502-driving gear, 503-driven disc, 504-suction cup support plate, 505-vacuum suction cup; 6-internal welding assembly, 601-second slewing bearing, 602-second slide rail, 603-second slider, 604-fourth push rod, 605-second mounting block, 606-second laser welding head; 7-sleeve turning driving assembly, 701-second motor, 702-support shaft, 703-column counterweight; 8-inner support assembly, 801-arc-shaped plate column, 802-straight plate column, 803-first push rod, 804-first support block, 805-second push rod, 806-second support block; 9-inner punching assembly, 901-fourth slide rail, 902-fourth slide block, 903-seventh push rod, 904-punch, 905-second punch avoidance groove; 10-sleeve, 101-sleeve body, 102-sleeve, 103-arched tensile ring, 104-drain pipe, 105-drain hole; 11- flange pipe, 111- rectangular pipe portion, 112- rectangular flange end plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1As shown, this embodiment provides a laser welding system for aviation aluminum alloy slide rail sleeves, including a horizontal plate seat 1, a vertical plate seat 2, an external welding assembly 3, an external pressure-bearing assembly 4, a flange pipe adsorption assembly 5, an internal welding assembly 6, a sleeve flip drive assembly 7, an internal support assembly 8 and an internal stamping assembly 9. The horizontal plate seat 1 and the vertical plate seat 2 are fixed vertically, the horizontal plate seat 1 is equipped with an external welding assembly 3 and an external pressure-bearing assembly 4, the vertical plate seat 2 is equipped with a flange pipe adsorption assembly 5, an internal welding assembly 6 and a sleeve flip drive assembly 7, and the sleeve flip drive assembly 7 is connected to the internal stamping assembly 9 through the internal support assembly 8. The flange pipe adsorption assembly 5 can adsorb and lock the flange pipe 11 and can drive it to rotate; the internal support assembly 8 can provide welding internal support for the sleeve 10 and fine-tune its curvature; the sleeve flip drive assembly 7 can drive the sleeve 10 to rotate synchronously with the flange pipe 11. The outer welding assembly 3 can weld the outer welding line of the butt joint of the sleeve 10 and the flange pipe 11; the inner welding assembly 6 can weld the inner welding line of the butt joint of the sleeve 10 and the flange pipe 11. The inner stamping assembly 9 and the outer pressure bearing assembly 4 are used together to stamp and form a drain pipe 104 with a drain hole 105 at the bottom of the envelope 102 of the sleeve 10.

[0024] like Figure 2-Figure 3 As shown, the sleeve 10 includes a sleeve body 101 and a sleeve 102. One end of the sleeve body 101 is open, and the other end of the sleeve body 101 is provided with a sleeve 102 connected thereto. The sleeve body 101 is provided with a plurality of arched tensile rings 103. The finished sleeve after stamping has a drain pipe 104 with a drain hole 105 at the bottom of the sleeve 102. The structure of the sleeve 10 to be stamped into a drain pipe is as follows: Figure 4 shown.

[0025] like Figure 5 As shown, the flange pipe 11 is composed of a rectangular pipe portion 111 and a rectangular flange end plate 112 , and the cross-sectional specifications of the rectangular pipe portion 111 match the cross-sectional specifications of the sleeve body 101 .

[0026] like Figure 6-Figure 7 As shown, the flange pipe adsorption assembly 5 includes a first motor 501, a driving gear 502, a driven disc 503, a suction cup support plate 504 and a vacuum suction cup 505. The first motor 501 is embedded and fixed on the vertical plate seat 2, and the output end of the first motor 501 is equipped with a driving gear 502 meshing with the driven disc 503, and the side wall of the driven disc 503 is fixed with a vacuum suction cup 505 through the suction cup support plate 504. The vertical plate seat 2 is provided with a first movable cavity for facilitating the rotation of the driving gear 502, the driven disc 503 and the suction cup support plate 504, and the shape of the vacuum suction cup 505 matches the shape of the rectangular flange end plate 112 in the flange pipe 11.

[0027] The working principle of the flange tube adsorption assembly 5 is as follows: the rectangular flange end plate 112 in the flange tube 11 is adsorbed and locked by using the vacuum suction cup 505. When it is necessary to drive the flange tube 11 to rotate, the first motor 501 is started, and the first motor 501 drives the driven disk 503 to rotate via the driving gear 502. The driven disk 503 drives the vacuum suction cup 505 and the rectangular flange end plate 112 adsorbed thereon to rotate via the suction cup support plate 504.

[0028] like Figure 8 As shown, the sleeve flip drive assembly 7 includes a second motor 701, a support shaft 702 and a columnar counterweight 703. The second motor 701 is fixed to the vertical plate seat 2 through a motor bracket. The output end of the second motor 701 is fixed with the support shaft 702, and the outer side of the support shaft 702 is sleeved and fixed with a columnar counterweight 703. A second movable cavity is opened on the vertical plate seat 2 to facilitate the rotation of the support shaft 702 and the columnar counterweight 703.

[0029] The working principle of the sleeve flip driving assembly 7 is as follows: when the sleeve 10 needs to be driven to rotate, the second motor 701 is started, and the second motor 701 drives the inner support assembly 8 to rotate via the support shaft 702, and the sleeve 10 supported by the inner support assembly 8 also rotates accordingly. The cylindrical counterweight block 703 is designed to improve the stability of the support shaft 702 during rotation, so that the axis of the support shaft 702 remains horizontal.

[0030] like Fig. 9 As shown, the inner support assembly 8 includes an arc plate column 801, a straight plate column 802, a first push rod 803, a first support block 804, a second push rod 805 and a second support block 806. One end of the arc plate column 801 is fixedly connected to the outer end of the support shaft 702, and the other end of the arc plate column 801 is provided with a straight plate column 802 connected thereto. The upper and lower side surfaces of the front of the arc plate column 801 are respectively installed with a first push rod 803, the number of the first push rod 803 is at least one, and the movable end of the first push rod 803 is installed with a first support block 804 that can extend into the frontmost arched anti-tension ring 103 in the sleeve 10. The upper and lower side surfaces of the rear of the arc plate column 801 are respectively installed with a second push rod 805, the number of the second push rod 805 is at least one, and the movable end of the second push rod 805 is installed with a second support block 806 that can extend into the rearmost arched anti-tension ring 103 in the sleeve 10.

[0031] The working principle of the inner support assembly 8 is as follows: when it is necessary to provide welding inner support for the sleeve 10, the first push rod 803 is used to clamp the first support block 804 into the arched tensile ring 103 at the frontmost side of the sleeve 10, and the second push rod 805 is used to clamp the second support block 806 into the arched tensile ring 103 at the rearmost side of the sleeve 10. The sleeve 10 can remain stable under the action of the first support block 804 and the second support block 806, so that the open end face of the sleeve 10 can be stably docked with the outer end face of the rectangular tube portion 111 of the flange pipe 11 during welding. When it is necessary to fine-tune the curvature of the sleeve 10 before welding, the sleeve 10 is preheated with an external hot air blower, and then the extension distance of the corresponding first push rod 803 and the second push rod 805 is adjusted according to the corrected curvature, so that the curvature of the sleeve 10 reaches the correction set value.

[0032] like Fig.10 As shown, the outer welding assembly 3 includes a first slewing bearing 301, a first slide rail 302, a first slider 303, a third push rod 304, a first mounting block 305 and a first laser welding head 306. The fixed ring portion of the first slewing bearing 301 is embedded and fixed in the horizontal plate seat 1, and the first slide rail 302 is fixed to the outer side of the moving ring portion of the first slewing bearing 301. The first slider 303 constituting a linear guide pair is installed on the outer side of the first slide rail 302, and the third push rod 304 is fixed to the outer side of the first slider 303. The movable end of the third push rod 304 is installed with the first laser welding head 306 via the first mounting block 305.

[0033] The working principle of the external welding component 3 is: using the first slewing bearing 301 to adjust the direction of the first slide rail 302, and using the linear guide pair composed of the first slewing bearing 301 and the first slide rail 302 to drive the third push rod 304 and the first laser welding head 306 thereon to move, so as to meet the needs of various welding processes such as arc welds.

[0034] like Fig.11 As shown, the inner welding assembly 6 includes a second slewing bearing 601, a second slide rail 602, a second slider 603, a fourth push rod 604, a second mounting block 605 and a second laser welding head 606. The fixed ring portion of the second slewing bearing 601 is embedded and fixed in the vertical plate seat 2, and the second slide rail 602 is fixed to the outer side of the moving ring portion of the second slewing bearing 601. The second slider 603 forming a linear guide pair is installed on the outer side of the second slide rail 602, and the fourth push rod 604 is fixed to the outer side of the second slider 603. The movable end of the fourth push rod 604 is installed with a second laser welding head 606 via the second mounting block 605.

[0035] The working principle of the inner welding component 6 is: using the second slewing bearing 601 to adjust the direction of the second slide rail 602, and using the linear guide pair composed of the second slide rail 602 and the second slider 603 to drive the fourth push rod 604 and the second laser welding head 606 thereon to move, so as to meet the needs of various welding processes such as arc welds.

[0036] like Fig.12 As shown, the external pressure-bearing assembly 4 includes a third slide rail 401, a third slider 402, a fifth push rod 403, a mounting frame 404, a pressure block 405, a sixth push rod 408 and a punch rod 409. The third slide rail 401 is fixed on the horizontal plate seat 1, and the third slider 402 is installed on the outer side of the third slide rail 401 to form a linear guide rail pair. The fifth push rod 403 is fixed on the outer side of the third slider 402, and the movable end of the fifth push rod 403 is installed with a pressure block 405 through the mounting frame 404. The upper end of the pressure block 405 is provided with a drainage forming groove 406 that matches the shape of the outer wall of the drainage pipe 104, and the bottom end of the drainage forming groove 406 is provided with a first punch rod avoidance groove 407. The sixth push rod 408 is installed in the mounting frame 404, and the movable end of the sixth push rod 408 is provided with a punch rod 409 for punching and forming the drainage hole 105 on the outer end plate of the drainage pipe 104.

[0037] like Fig.13 As shown, the inner punching assembly 9 includes a fourth slide rail 901, a fourth slider 902, a seventh push rod 903 and a punch 904. The fourth slide rail 901 is fixed to the lower side of the straight plate column 802 in the inner support assembly 8, the outer side of the fourth slide rail 901 is installed with a fourth slider 902 which forms a linear guide pair with the fourth slide rail 901, the outer side of the fourth slider 902 is fixed with a seventh push rod 903, the movable end of the seventh push rod 903 is installed with a punch 904 which matches the shape of the inner wall of the drain pipe 104, and the bottom end of the punch 904 is provided with a second punch avoidance groove 905 inwardly.

[0038] The working principle of the inner punching assembly 9 and the outer pressure bearing assembly 4 is as follows: Fig.14As shown in the figure, when it is necessary to stamp and form a drain pipe 104 with a drain hole 105 at the bottom of the envelope 102, the position of the fifth push rod 403 is first adjusted by using the linear guide pair composed of the third slide rail 401 and the third slider 402, and the fifth push rod 403 is started to make the pressure block 405 at the upper end abut against the bottom outer wall of the envelope 102, and the position of the seventh push rod 903 is adjusted by using the linear guide pair composed of the fourth slide rail 901 and the fourth slider 902, and the seventh push rod 903 is started to make the punch 904 at the lower end thereof toward the bottom of the envelope 102 for stamping, and the envelope 102 The bottom of the drain pipe 104 with an end plate on the bottom side is punched out by the punch 904 and the pressure block 405; then the sixth push rod 408 is started, and the sixth push rod 408 drives the punch rod 409 to punch toward the end plate of the drain pipe 104, and finally a drain hole 105 is punched out on the end plate of the drain pipe 104, and the drain hole 105 is used for the subsequent installation of an external water diversion pipe.

[0039] This embodiment also provides a laser welding method for an aviation aluminum alloy slide rail sleeve, comprising the following steps: S1. Use the flange pipe adsorption component 5 to adsorb and lock the flange pipe 11, use the inner support component 8 to provide welding inner support for the sleeve 10, and first fine-tune the curvature of the sleeve 10 according to its curvature requirements; S2. Use the outer welding assembly 3 and the inner welding assembly 6 to synchronously weld the outer and inner welding lines of the sleeve 10 and the flange pipe 11 at the joint. After each side of the welding is completed, use the flange pipe adsorption assembly 5 to drive the flange pipe 11 to flip 90 degrees, and use the sleeve flip driving assembly 7 to drive the sleeve 10 to rotate synchronously with the flange pipe 11. S3. Use the inner punching assembly 9 and the outer pressure-bearing assembly 4 to punch out a drainage pipe 104 with a drainage hole 105 at the bottom of the envelope 102 of the sleeve 10.

[0040] The present embodiment provides a laser welding system for an aviation aluminum alloy slide rail sleeve, including a horizontal plate seat 1, a vertical plate seat 2, an external welding assembly 3, an external pressure-bearing assembly 4, a flange tube adsorption assembly 5, an internal welding assembly 6, a sleeve flipping drive assembly 7, an internal support assembly 8 and an internal stamping assembly 9. The components cooperate with each other, and the flange tube adsorption assembly 5 is used to adsorb and lock the flange tube 11 and drive it to rotate; the internal support assembly 8 is used to provide welding internal support for the sleeve 10 and fine-tune its curvature; the sleeve flipping drive assembly 7 is used to drive the sleeve 10 to rotate synchronously with the flange tube 11; the external welding assembly 3 and the internal welding assembly 6 are used to perform double-sided welding on the joint parts of the sleeve 10 and the flange tube 11; the internal stamping assembly 9 and the external pressure-bearing assembly 4 are used to jointly stamp out a drainage pipe 104 with a drainage hole 105 at the bottom of the sleeve 10 envelope 102. In this way, automatic welding of the sleeve 10 and the flange tube 11 is achieved, with a high degree of automation, which is beneficial to the industrial assembly of large-size aviation aluminum alloy slide rail sleeves; at the same time, it can provide reliable internal support during the welding process, and can perform double-sided welding on the welding parts. The welding parts are heated evenly, stress deformation is not likely to occur, and the welding effect is better.

[0041] The aviation aluminum alloy slide rail sleeve prepared in this embodiment has a sleeve 10 with a plurality of arched tensile rings 103, which has good tensile resistance and is not easily damaged by collision. The curvature of the sleeve 10 can be fine-tuned and corrected according to needs to ensure the smooth realization of its functions. The laser welding system can directly form a drain pipe 104 with a drain hole 105 on the sleeve 102, without the need for additional welding and installation of the drain pipe, and has a good anti-leakage effect.

[0042] The preferred embodiments of the present invention disclosed above are only useful to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A laser welding system for aviation aluminum alloy slide rail sleeves, characterized in that: It includes a horizontal plate seat, a vertical plate seat, an external welding assembly, an external pressure-bearing assembly, a flange pipe adsorption assembly, an internal welding assembly, a sleeve flip drive assembly, an internal support assembly and an internal stamping assembly; The horizontal plate seat and the vertical plate seat are fixed vertically, the horizontal plate seat is installed with an external welding assembly and an external pressure-bearing assembly, the vertical plate seat is installed with a flange pipe adsorption assembly, an internal welding assembly and a sleeve flip drive assembly, and the sleeve flip drive assembly is connected with an internal stamping assembly through an internal support assembly; The flange tube adsorption assembly can adsorb and lock the flange tube and drive it to rotate; the internal support assembly can provide welding internal support for the sleeve and fine-tune its curvature; the sleeve flipping drive assembly can drive the sleeve to rotate synchronously with the flange tube; the internal support assembly includes an arc plate column, a straight plate column, a first push rod, a first support block, a second push rod and a second support block. One end of the arc plate column is fixedly connected to the outer end of the support shaft, and the other end of the arc plate column is provided with a straight plate column connected to it as an integral whole. The upper and lower side surfaces of the front of the arc plate column are respectively installed with a first push rod, and the movable end of the first push rod is installed with a first support block that can extend into the frontmost arched anti-tension ring in the sleeve, and the upper and lower side surfaces of the rear of the arc plate column are respectively installed with a second push rod, and the movable end of the second push rod is installed with a second support block that can extend into the rearmost arched anti-tension ring in the sleeve; The external welding assembly can weld the external welding line of the sleeve and the flange pipe joint; the internal welding assembly can weld the internal welding line of the sleeve and the flange pipe joint; The inner punching component and the outer pressure-bearing component are used together to punch and form a drainage pipe with drainage holes at the bottom of the sleeve envelope.

2. The laser welding system for aviation aluminum alloy slide rail sleeve according to claim 1 is characterized in that: The sleeve comprises a sleeve body and a sleeve, one end of the sleeve body is open, the other end of the sleeve body is provided with a sleeve integrally connected thereto, and the sleeve body is provided with a plurality of arched tensile rings; the finished sleeve is provided with a drainage pipe with drainage holes at the bottom of the sleeve.

3. The laser welding system for aviation aluminum alloy slide rail sleeve according to claim 2 is characterized in that: The flange pipe is composed of a rectangular pipe portion and a rectangular flange end plate, and the cross-sectional specifications of the rectangular pipe portion match the cross-sectional specifications of the sleeve body.

4. The laser welding system for aviation aluminum alloy slide rail sleeve according to claim 3 is characterized in that: The flange tube adsorption assembly includes a first motor, a driving gear, a driven disc, a suction cup support plate and a vacuum suction cup. The first motor is embedded and fixed on a vertical plate seat. The output end of the first motor is equipped with a driving gear meshing with the driven disc. The side wall of the driven disc is fixed with a vacuum suction cup through a suction cup support plate. The vertical plate seat is provided with a first movable cavity for facilitating the rotation of the driving gear, the driven disc and the suction cup support plate. The shape of the vacuum suction cup matches the shape of the rectangular flange end plate in the flange tube.

5. The laser welding system for aviation aluminum alloy slide rail sleeve according to claim 4, characterized in that: The sleeve flipping drive assembly includes a second motor, a support shaft and a columnar counterweight. The second motor is fixed to the vertical plate seat through a motor bracket. The output end of the second motor is fixed with a support shaft, and the outer side of the support shaft is sleeved and fixed with a columnar counterweight. The vertical plate seat is provided with a second movable cavity for facilitating the rotation of the support shaft and the columnar counterweight.

6. The laser welding system for aviation aluminum alloy slide rail sleeve according to claim 5, characterized in that: The external welding component includes a first slewing bearing, a first slide rail, a first slider, a third push rod, a first mounting block and a first laser welding head. The fixed ring portion of the first slewing bearing is embedded and fixed in a horizontal plate seat. The first slide rail is fixed to the outer side of the moving ring portion of the first slewing bearing. The first slider that forms a linear guide pair with the first slide rail is installed on the outer side of the first slide rail. The third push rod is fixed to the outer side of the first slider. The movable end of the third push rod is installed with a first laser welding head via the first mounting block.

7. The laser welding system for aviation aluminum alloy slide rail sleeve according to claim 6, characterized in that: The internal welding component includes a second slewing bearing, a second slide rail, a second slider, a fourth push rod, a second mounting block and a second laser welding head. The fixed ring portion of the second slewing bearing is embedded and fixed in the vertical plate seat. The second slide rail is fixed to the outer side of the moving ring portion of the second slewing bearing. The second slider forming a linear guide pair therewith is installed on the outer side of the second slide rail. The fourth push rod is fixed to the outer side of the second slider. The movable end of the fourth push rod is installed with a second laser welding head via the second mounting block.

8. The laser welding system for aviation aluminum alloy slide rail sleeve according to claim 7, characterized in that: The external pressure-bearing component includes a third slide rail, a third slider, a fifth push rod, a mounting frame, a pressure block, a sixth push rod and a punch rod. The third slide rail is fixed on a horizontal plate seat, a third slider forming a linear guide pair is installed on the outer side of the third slide rail, a fifth push rod is fixed on the outer side of the third slider, a pressure block is installed on the movable end of the fifth push rod via the mounting frame, a drainage forming groove matching the shape of the outer wall of the drainage pipe is opened inward at the upper end of the pressure block, a first punch rod avoidance groove is opened at the bottom end of the drainage forming groove, a sixth push rod is installed on the mounting frame, and a punch rod for punching drainage holes on the outer end plate of the drainage pipe is installed on the movable end of the sixth push rod.

9. The laser welding system for aviation aluminum alloy slide rail sleeve according to claim 8, characterized in that: The inner stamping assembly includes a fourth slide rail, a fourth slider, a seventh push rod and a punch. The fourth slide rail is fixed to the lower side of the straight plate column in the inner support assembly. The outer side of the fourth slide rail is equipped with a fourth slider that forms a linear guide pair therewith. The outer side of the fourth slider is fixed with a seventh push rod. The movable end of the seventh push rod is equipped with a punch that matches the shape of the inner wall of the drain pipe.

10. A laser welding method for aviation aluminum alloy slide rail sleeves, implemented based on the laser welding system for aviation aluminum alloy slide rail sleeves according to claim 9, characterized in that: The steps include: S1. Use the flange pipe adsorption component to adsorb and lock the flange pipe, use the inner support component to provide welding inner support for the sleeve, and first fine-tune the curvature of the sleeve according to the curvature requirements; S2. Use the external welding assembly and the internal welding assembly to synchronously weld the external and internal welding lines of the sleeve and the flange pipe joint. After each side of the welding is completed, use the flange pipe adsorption assembly to drive the flange pipe to flip 90 degrees, and use the sleeve flip drive assembly to drive the sleeve to rotate synchronously with the flange pipe. S3. Use the inner stamping component and the outer pressure-bearing component to stamp out a drainage pipe with drainage holes at the bottom of the sleeve envelope.

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