Combustion chamber thin-wall flame tube inner and outer duct component laser electric arc hybrid welding device

Abstract

The invention discloses a combustion chamber thin-wall flame tube inner and outer duct component laser-arc hybrid welding device, and relates to the technical field of flame tube inner and outer duct welding. The combustion chamber thin-wall flame tube inner and outer duct component laser-arc hybrid welding device comprises a mounting base, a fixing groove connected with an external laser welding bin is formed in the side wall of the mounting base, and a guide frame is connected to the center of the top of the mounting base in a penetrating mode; a guide frame is fixedly connected to the top of the mounting base, a limiting bin is fixedly connected to the rear end of the guide frame, a component limiting clamp is arranged at the top of the mounting base, a lifting rail is fixedly connected to the top of the rear end of the mounting base, and laser welding equipment is arranged on the portion, located above the component limiting clamp, of the outer surface of the lifting rail. Through the mutual matching relation between a pushing ring and a sliding rod, an adjusting frame can move on a limiting frame, meanwhile, a lead screw A is rotated to drive a movable frame to slide on the adjusting frame, a contact plate and the side wall of a flame tube base are attached and limited, and then the effect of limiting the inner-layer base and the outer-layer base of a flame tube is achieved.

Description

Technical Field

[0001] This invention relates to the field of welding technology for the inner and outer ducts of a flame tube, specifically to a laser-arc hybrid welding device for the inner and outer duct components of a thin-walled flame tube in a combustion chamber. Background Technology

[0002] The auxiliary power unit of an aircraft is a type of aero gas turbine engine. Its annular combustion chamber is a hot-end component. High-pressure air and atomized fuel are mixed and burned in the annular combustion chamber to provide thermal energy. The exhaust high-temperature gas further converts thermal energy into mechanical energy in the turbine to generate power. The combustion chamber of a turbojet engine is a key component of the engine's hot end. Its manufacturing quality directly determines the engine's performance, reliability, and lifespan. The combustion chamber is usually made of high-temperature alloy thin plates through precision welding. Its structure is complex and thin-walled, and it works in an extreme environment of high temperature and high pressure. Therefore, it places extremely stringent requirements on the quality of welding, geometric accuracy, and structural integrity.

[0003] A search revealed that Chinese Patent Publication No. CN120962220A discloses a forming and welding device for manufacturing a turbojet engine combustion chamber. The device includes a base, two mounting plates that are vertically slidably mounted on the top wall of the base, and slots on the side walls of the two mounting plates. A bracket is fixedly mounted on the side walls of the mounting plates, and the base is provided with a drive mechanism for driving the two mounting plates to move synchronously. The base is provided with an annular guide rail, and a mounting frame is slidably mounted on the annular guide rail. A welding machine is mounted on the mounting frame.

[0004] During combustion chamber welding, welding fixtures are required to reliably fix and clamp the components to ensure assembly accuracy. However, the heat generated during welding causes a rapid rise in local temperature, inducing significant thermal stress and uneven plastic strain. This inevitably leads to shrinkage and deformation of the workpiece, especially for thin-walled combustion chambers, which have low structural rigidity and are extremely sensitive to heat input. After welding is completed and the fixtures are released, these stresses are redistributed as residual stresses, often causing unpredictable deformation. To address this, we propose a laser-arc hybrid welding device for the inner and outer duct components of the thin-walled combustion chamber flame tube. Summary of the Invention

[0005] The purpose of this invention is to provide a laser-arc hybrid welding device for the inner and outer duct components of the thin-walled combustion chamber flame tube, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a laser-arc hybrid welding device for the inner and outer duct components of a thin-walled combustion chamber flame tube, comprising a mounting base, a fixing groove for connecting to an external laser welding chamber on the side wall of the mounting base, a guide frame for through connection at the top center of the mounting base, a limiting chamber for fixed connection at the rear end of the guide frame, a component limiting clamp on the top of the mounting base, a lifting rail for fixed connection at the top rear end of the mounting base, a laser welding device for the outer surface of the lifting rail above the component limiting clamp, the component limiting clamp consisting of a cylinder limiting clamp and a base limiting clamp, the cylinder limiting clamp being positioned at the center of the base limiting clamp, the base limiting clamp including a limiting frame for fixed connection to the outer wall of the guide frame, six adjusting frames arranged in an array on the top of the limiting frame, a sliding rod for fixed connection to the bottom wall of the adjusting frame, and a fixed connection to the top wall of the adjusting frame near the guide frame. The positioning block has a support plate fixedly connected to its side wall away from the guide frame. A lead screw A is rotatably connected between the positioning block and the adjusting frame. A movable frame is rotatably connected to the outer surface of lead screw A away from the positioning block. The support plate passes through the top of the movable frame. Both the top of the movable frame and the top of the positioning block have slots. A contact plate is fixedly connected to the slot by fastening bolts. A positioning rod is fixedly connected to the side of the contact plate away from the slot. The cylinder limiting clamp includes a lifting column. The outer wall of the lifting column is slidably connected to the inner wall of the guide frame. A storage tray is fixedly connected to the top of the lifting column. Several telescopic shafts are arrayed inside the storage tray. A support block is fixedly connected to the telescopic shaft outside the storage tray. A rubber pad is fixedly connected to the side wall of the support block. A power shaft is rotatably connected inside the lifting column. An adjusting plate is fixedly connected to the top of the power shaft inside the storage tray. An extrusion groove is slidably connected to the end of the telescopic shaft inside the adjusting plate.

[0007] Preferably, the outer wall of the guide frame is slidably connected to an adjusting ring, and a stabilizing frame is fixedly connected to the outer surface of the adjusting ring on the outer wall of the guide frame. Six pushing rings are arranged in an array inside the adjusting ring. The pushing rings are arranged in an arc shape. A sliding rod extends into the inside of the pushing ring. A sliding groove is opened inside the limiting frame to form a sliding connection with the sliding rod. A moving groove is provided on the bottom wall of the adjusting frame to form a sliding connection with the top wall of the limiting frame.

[0008] Preferably, the rear side wall of the adjusting ring has a toothed ring facing forward. The inner wall of the adjusting ring located at the toothed ring position forms a sliding connection with the outer wall of the limiting chamber. The rear end of the toothed ring is engaged with a contact wheel. The outer wall of the limiting chamber is rotatably connected to the upper and lower ends of the contact wheel through an extension frame. A worm wheel A is fixedly connected to the bottom end of the contact wheel. A worm A is engaged on the rear side of the worm wheel A. The top wall of the mounting base is rotatably connected to the worm A through a bracket.

[0009] Preferably, the adjusting frame is arranged in an "L" shape, the bottom wall of the movable frame and the top wall of the adjusting frame are slidably connected, the side wall of the contact plate engages with the slot through the insert block, the curvature of the contact plate is consistent with the curvature of the inner wall of the part to be welded, and the contact plate is set as a replacement part.

[0010] Preferably, the lifting column is square in shape, the side wall of the storage tray has a through hole that engages with the telescopic shaft, the bottom wall of the storage tray is provided with a guide rail that is slidably connected to the outer wall of the telescopic shaft, and the support block is isosceles triangular in shape.

[0011] Preferably, the side wall of the adjustment disc is rotatably connected to the inner wall of the storage disc, and the end of the telescopic shaft is slidably connected to the inner wall of the extrusion groove by means of a push rod.

[0012] Preferably, the bottom end of the lifting column is fixedly connected to a combination frame below the mounting base, the bottom end of the power shaft is fixedly connected to a worm gear B, the outer wall of the worm gear B is meshed with a worm B, the rear end of the worm B is fixedly connected to a servo motor B, and the servo motor B is fixedly connected to the bottom wall of the combination frame.

[0013] Preferably, a top rod is fixedly connected to the top wall of the combined frame behind the lifting column. The top of the top rod is slidably connected to the bottom wall of the limiting chamber. A pushing block is rotatably connected to the outer surface of the top of the top rod. The pushing block is slidably connected to the inner wall of the limiting chamber. A lead screw B is rotatably connected to the end of the pushing block away from the top rod. The upper and lower ends of the lead screw B are rotatably connected to the side wall of the limiting chamber. The bottom end of the lead screw B extends into the combined frame. The bottom end of the lead screw B is meshed with the output shaft of the servo motor A through a bevel gear. A gear groove is opened in the combined frame at the position of the bevel gear. The servo motor A is fixedly connected to the bottom wall of the mounting base.

[0014] Preferably, the laser welding equipment includes a movable support, a hinged support A fixedly connected to the front side wall of the movable support, a power component A fixedly connected to the front top wall of the hinged support A, a hinged support B fixedly connected to the bottom of the power component A, a power component B disposed inside the hinged support B, a steering component disposed to the right side of the power component B, and a welding module fixedly connected to the bottom of the steering component.

[0015] Preferably, a drive assembly is provided between the rear end of the mobile bracket and the mounting base. The drive assembly consists of a motor and a lead screw. The component limiting fixture and the power assembly in the laser welding equipment are both connected to the external control assembly.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by setting up a positioning block, a support plate, a contact plate, and a positioning rod component, and through the cooperation between the pushing ring and the sliding rod, enables the adjusting frame to move on the limiting frame. At the same time, by rotating the lead screw A, the moving frame slides on the adjusting frame, so that the contact plate is in contact with the side wall of the flame tube base and is limited, thereby achieving the effect of limiting the inner and outer bases of the flame tube. It also solves the problem that existing welding fixtures cannot be used for flame tubes of various sizes.

[0017] 2. This invention, by setting up a storage tray, a telescopic shaft, a support block, and a rubber pad component, and through the mutual cooperation between the power shaft and the adjustment plate, enables the telescopic shaft to drive the support block to contact and fix the flame tube body to be welded, thereby achieving the effect of limiting the flame tube body to be welded, and at the same time solving the problem that existing welding fixtures cannot be used for flame tubes of various sizes.

[0018] 3. This invention, by setting a guide frame and lifting column components, and through the cooperation between the top rod, the pushing block and the lead screw B, adjusts the position of the flame tube fixed on the storage tray, and with the help of the ranging equipment, reaches the accurate welding position. The components are then welded by laser welding equipment, achieving a precise welding effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structural driving component of the present invention; Figure 3 This is a schematic diagram of the laser welding equipment of the present invention; Figure 4 This is a schematic diagram of the structural guide frame of the present invention; Figure 5 This is a schematic diagram of the limiting frame structure of the present invention; Figure 6 This is a schematic diagram of the contact plate structure of the present invention; Figure 7 This is a schematic diagram of the driving ring structure of the present invention; Figure 8 This is a schematic diagram of the lifting column structure of the present invention; Figure 9 This is a schematic diagram of the structural adjustment disc of the present invention; Figure 10 This is a schematic diagram of the structural support block of the present invention.

[0020] In the diagram: 1. Mounting base; 2. Guide frame; 3. Limiting chamber; 4. Lifting rail; 5. Limiting frame; 6. Adjusting frame; 7. Slide rod; 8. Positioning block; 9. Support plate; 10. Lead screw A; 11. Moving frame; 12. Fastening bolt; 13. Contact plate; 14. Positioning rod; 15. Lifting column; 16. Storage tray; 17. Telescopic shaft; 18. Support block; 19. Rubber pad; 20. Power shaft; 21. Adjusting plate; 22. Extrusion groove; 23. Adjusting ring; 24. Pushing ring; 5. Gear ring; 26. Contact wheel; 27. Worm gear A; 28. Worm A; 29. ​​Guide rail; 30. Assembly frame; 31. Worm gear B; 32. Worm B; 33. Servo motor B; 34. Push rod; 35. Push block; 36. Lead screw B; 37. Servo motor A; 38. Bevel gear; 39. Moving bracket; 40. Hinge bracket A; 41. Power assembly A; 42. Hinge bracket B; 43. Power assembly B; 44. Steering assembly; 45. Welding module; 46. Drive assembly. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0023] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0025] Please see Figures 1-10 The present invention provides a technical solution: a laser arc composite welding device for the inner and outer duct components of a thin-walled combustion chamber flame tube, including a mounting base 1. The side wall of the mounting base 1 is provided with a fixing groove for connecting to an external laser welding chamber. A guide frame 2 is connected through the center of the top of the mounting base 1. A limiting chamber 3 is fixedly connected to the rear end of the guide frame 2. A component limiting clamp is provided on the top of the mounting base 1. A lifting rail 4 is fixedly connected to the top of the rear end of the mounting base 1. A laser welding device is provided on the outer surface of the lifting rail 4 above the component limiting clamp. The power components inside the component limiting clamp and the laser welding device are both connected to an external control assembly.

[0026] The component limiting fixture consists of a cylinder limiting fixture and a base limiting fixture. The cylinder limiting fixture is located at the center of the base limiting fixture. The base limiting fixture includes a limiting frame 5, which is fixedly connected to the outer wall of the guide frame 2. Six adjusting frames 6 are arranged in an array on the top of the limiting frame 5. A sliding rod 7 is fixedly connected to the bottom wall of the adjusting frame 6. A positioning block 8 is fixedly connected to the top wall of the adjusting frame 6 near the guide frame 2. A support plate 9 is fixedly connected to the side wall of the positioning block 8 away from the guide frame 2. A lead screw A10 is rotatably connected between the positioning block 8 and the adjusting frame 6. A movable frame 11 is rotatably connected to the outer surface of the lead screw A10 away from the positioning block 8. The setting of the lead screw A10 facilitates the adjustment of the position of the movable frame 11.

[0027] The support plate 9 passes through the top of the movable frame 11. The top of the movable frame 11 and the top of the positioning block 8 are both provided with slots. A contact plate 13 is fixedly connected in the slot by fastening bolts 12. The adjusting frame 6 is set in an "L" shape. The bottom wall of the movable frame 11 and the top wall of the adjusting frame 6 form a sliding connection. The side wall of the contact plate 13 engages with the slot through an insert. The curvature of the contact plate 13 is consistent with the curvature of the inner wall of the part to be welded. The contact plate 13 is set as a replacement part. The contact plate 13 with the same curvature is replaced according to the curvature of the inner wall of the cylinder. A positioning insert rod 14 is fixedly connected to the side of the contact plate 13 away from the slot.

[0028] The cylinder limiting clamp includes a lifting column 15. The outer wall of the lifting column 15 is slidably connected to the inner wall of the guide frame 2. A storage tray 16 is fixedly connected to the top of the lifting column 15. Several telescopic shafts 17 are arrayed inside the storage tray 16. A support block 18 is fixedly connected to the telescopic shaft 17 outside the storage tray 16. The support block 18 supports the cylinder. A rubber pad 19 is fixedly connected to the side wall of the support block 18. A power shaft 20 is rotatably connected inside the lifting column 15. An adjustment plate 21 is fixedly connected to the top of the power shaft 20 inside the storage tray 16. An extrusion groove 22 is opened inside the adjustment plate 21 and is slidably connected to the end of the telescopic shaft 17. The side wall of the adjustment plate 21 is rotatably connected to the inner wall of the storage tray 16. The end of the telescopic shaft 17 is slidably connected to the inner wall of the extrusion groove 22 by setting a push rod.

[0029] An adjusting ring 23 is slidably connected to the outer wall of the guide frame 2. A stabilizing frame is fixedly connected to the outer surface of the adjusting ring 23 on the outer wall of the guide frame 2. Six pushing rings 24 are arranged in an array inside the adjusting ring 23. The pushing rings 24 are arranged in an arc shape. The sliding rod 7 extends into the inside of the pushing ring 24. The limiting frame 5 has a sliding groove that is slidably connected to the sliding rod 7 inside. The bottom wall of the adjusting frame 6 has a moving groove that is slidably connected to the top wall of the limiting frame 5. A toothed ring 25 is forward-facing on the rear side wall of the adjusting ring 23. The inner wall of the adjusting ring 23 at the position of the toothed ring 25 is slidably connected to the outer wall of the limiting chamber 3. A contact wheel 26 is engaged at the rear end of the toothed ring 25. The outer wall of the limiting chamber 3 is rotatably connected to the upper and lower ends of the contact wheel 26 by setting an extension frame. The extension frame plays a role in fixing the contact wheel 26.

[0030] A worm gear A27 is fixedly connected to the bottom end of the contact wheel 26. A worm A28 meshes with the rear side of the worm gear A27. The top wall of the mounting base 1 is rotatably connected to the worm A28 via a bracket. The bases of the inner and outer layers of the flame tube are placed on the support plate 9 respectively. The worm A28 is manually rotated, which drives the worm gear A27 to rotate. The worm gear A27 drives the toothed ring 25 to move through the top contact wheel 26. The toothed ring 25 drives the adjusting ring 23 to rotate. The adjusting ring 23 drives the pushing ring 24 to move. 24 drives the slide bar 7 to move within the limiting frame 5, and the slide bar 7 drives the adjusting frame 6 to move until the support plate 9 at the top of the positioning block 8 contacts the base of the inner layer of the flame tube. The positioning rod 14 is inserted into the flange hole of the base. The lead screw A10 in the adjusting frame 6 is rotated respectively. The lead screw A10 drives the moving frame 11 to move. The moving frame 11 drives the top contact plate 13 to contact the base of the outer layer of the flame tube. Similarly, the positioning rod 14 is inserted into the flange hole of the base. At this time, the bases of the inner and outer layers of the flame tube are fixed.

[0031] The lifting column 15 is square in shape. The side wall of the storage tray 16 has a through hole that meshes with the telescopic shaft 17. The bottom wall of the storage tray 16 has a guide rail 29 that slides with the outer wall of the telescopic shaft 17. The support block 18 is isosceles triangular in shape. The shape of the support block 18 is designed to prevent deformation when the limiting cylinder is in place. The bottom end of the lifting column 15 is fixedly connected to the assembly frame 30 below the mounting base 1. The bottom end of the power shaft 20 is fixedly connected to the worm gear B31. The outer wall of the worm gear B31 meshes with the worm B32. The rear end of the worm B32 is fixedly connected to a servo motor. The servo motor B33 is fixedly connected to the bottom wall of the assembly frame 30. Under the action of the external controller, the servo motor B33 drives the worm wheel B31 to rotate through the worm gear B32. The worm wheel B31 drives the power shaft 20 to rotate. The power shaft 20 drives the extrusion groove 22 to move through the adjustment plate 21. The extrusion groove 22 drives the telescopic shaft 17 in the storage plate 16 to move synchronously. The head of the support block 18 is inserted into the hole in the cylinder. The telescopic shaft 17 drives the support block 18 to fix and limit the cylinder to be welded.

[0032] A top rod 34 is fixedly connected to the top wall of the combination frame 30 behind the lifting column 15. The top of the top rod 34 is slidably connected to the bottom wall of the limiting chamber 3. A push block 35 is rotatably connected to the outer surface of the top of the top of the top rod 34. The push block 35 is slidably connected to the inner wall of the limiting chamber 3. A lead screw B36 is rotatably connected to the end of the push block 35 away from the top rod 34. Both the upper and lower ends of the lead screw B36 are rotatably connected to the side wall of the limiting chamber 3. The bottom end of the lead screw B36 extends into the combination frame 30. The bottom end of the lead screw B36 meshes with the output shaft of the servo motor A37 through a bevel gear 38. A gear groove is opened in the combination frame 30 at the position of the bevel gear 38. The servo motor A37 is fixedly connected to the bottom wall of the mounting base 1. After fixing, the servo motor A37 drives the lead screw B36 to rotate with the cooperation of the ranging device. The lead screw B36 drives the push block 35 to move within the limiting chamber 3. 35 drives the combined frame 30 to move via the top rod 34. The combined frame 30 drives the lifting column 15 to move within the guide frame 2. The lifting column 15 drives the limited cylinder to be welded to the top position of the base. With the cooperation of the monitoring system, the laser welding equipment welds the cylinder to the base. The laser welding equipment includes a moving bracket 39. A hinged bracket A40 is fixedly connected to the front side wall of the moving bracket 39. A power component A41 is fixedly connected to the front top wall of the hinged bracket A40. A hinged bracket B42 is fixedly connected to the bottom of the power component A41. A power component B43 is installed inside the hinged bracket B42. A steering component 44 is installed on the right side of the power component B43. A welding module 45 is fixedly connected to the bottom of the steering component 44. A drive component 46 is installed between the rear end of the moving bracket 39 and the mounting base 1. The drive component 46 consists of a motor and a lead screw.

[0033] Working Principle: When using this laser-arc composite welding device for the inner and outer duct components of the thin-walled combustion chamber flame tube, first, replace the contact plate 13 with one of the same curvature according to the curvature of the inner wall of the tube. Place the bases of the inner and outer layers of the flame tube on the support plate 9 respectively. Manually rotate the worm gear A28, which drives the worm wheel A27 to rotate. The worm wheel A27 drives the toothed ring 25 to move through the top contact wheel 26. The toothed ring 25 drives the adjusting ring 23 to rotate. The adjusting ring 23 drives the pushing ring 24 to move. The pushing ring 24 drives the sliding rod 7 to move within the limiting frame 5. The sliding rod 7 drives the adjusting frame 6 to move until the support plate 9 at the top of the positioning block 8 contacts the base of the inner layer of the flame tube. The positioning rod 14 is then inserted into the flange hole of the base. Rotate the lead screw A10 in the adjusting frame 6. The lead screw A10 drives the moving frame 11 to move. The moving frame 11 drives the top contact plate 13 to contact the base of the outer layer of the flame tube. Similarly, the positioning rod 14 is inserted into the flange hole of the base. At this time, the bases of the inner and outer layers of the flame tube are... The cylinder to be welded is placed near the support block 18. Under the action of the external controller, the servo motor B33 is driven to run. The servo motor B33 drives the worm wheel B31 to rotate through the worm gear B32. The worm wheel B31 drives the power shaft 20 to rotate. The power shaft 20 drives the extrusion groove 22 to move through the adjustment plate 21. The extrusion groove 22 drives the telescopic shaft 17 in the storage plate 16 to move synchronously. The head of the support block 18 is inserted into the hole in the cylinder. The telescopic shaft 17 drives the support block 18 to fix and limit the cylinder to be welded. After fixing, the servo motor A37 drives the lead screw B36 to rotate with the cooperation of the ranging device. The lead screw B36 drives the push block 35 to move in the limiting chamber 3. The push block 35 drives the combination frame 30 to move through the top rod 34. The combination frame 30 drives the lifting column 15 to move in the guide frame 2. The lifting column 15 drives the limited cylinder to be welded to move to the top position of the base. The laser welding equipment welds the cylinder to the base with the cooperation of the monitoring system.

[0034] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser-arc hybrid welding device for the inner and outer duct components of a thin-walled combustion chamber flame tube, comprising a mounting base (1), wherein the side wall of the mounting base (1) is provided with a fixing groove for connecting to an external laser welding chamber, and a guide frame (2) is connected through to the center of the top of the mounting base (1), and a limiting chamber (3) is fixedly connected to the rear end of the guide frame (2), characterized in that: The mounting base (1) is provided with a component limiting clamp at the top, and a lifting rail (4) is fixedly connected to the top of the rear end of the mounting base (1). A laser welding device is provided on the outer surface of the lifting rail (4) above the component limiting clamp. The component limiting clamp consists of a cylinder limiting clamp and a base limiting clamp, with the cylinder limiting clamp positioned at the center of the base limiting clamp. The base limiting clamp includes a limiting frame (5), which is fixedly connected to the outer wall of the guide frame (2). Six adjusting frames (6) are arranged in an array on the top of the limiting frame (5). A sliding rod (7) is fixedly connected to the bottom wall of the adjusting frame (6). A positioning block (8) is fixedly connected to the top wall of the adjusting frame (6) near the guide frame (2). A support plate (9) is fixedly connected to the side wall of the positioning block (8) away from the guide frame (2). A lead screw A (10) is rotatably connected between the positioning block (8) and the adjusting frame (6). A movable frame (11) is rotatably connected to the outer surface of the lead screw A (10) away from the positioning block (8). The support plate (9) passes through the top of the movable frame (11). A slot is opened on the top of the movable frame (11) and the top of the positioning block (8). A contact plate (13) is fixedly connected in the slot by a fastening bolt (12). A positioning insert rod (14) is fixedly connected to the side of the contact plate (13) away from the slot. The cylinder limiting clamp includes a lifting column (15), the outer wall of the lifting column (15) and the inner wall of the guide frame (2) are slidably connected, a storage tray (16) is fixedly connected to the top of the lifting column (15), a number of telescopic shafts (17) are arranged in an array inside the storage tray (16), a support block (18) is fixedly connected to the telescopic shaft (17) outside the storage tray (16), a rubber pad (19) is fixedly connected to the side wall of the support block (18), a power shaft (20) is rotatably connected inside the lifting column (15), an adjustment plate (21) is fixedly connected to the top of the power shaft (20) inside the storage tray (16), and an extrusion groove (22) is opened inside the adjustment plate (21) and is slidably connected to the end of the telescopic shaft (17).

2. The laser-arc hybrid welding device for the inner and outer duct components of the thin-walled flame tube of the combustion chamber according to claim 1, characterized in that: The guide frame (2) has an adjusting ring (23) slidably connected to its outer wall. The guide frame (2) has a stabilizing frame fixedly connected to the outer surface of the adjusting ring (23). The adjusting ring (23) has six pushing rings (24) arranged in an array inside. The pushing rings (24) are arranged in an arc shape. The sliding rod (7) extends into the pushing ring (24). The limiting frame (5) has a sliding groove that is slidably connected to the sliding rod (7) inside. The bottom wall of the adjusting frame (6) has a moving groove that is slidably connected to the top wall of the limiting frame (5).

3. The laser-arc hybrid welding device for the inner and outer duct components of the thin-walled flame tube in the combustion chamber according to claim 2, characterized in that: The rear side wall of the adjusting ring (23) has a toothed ring (25) facing forward. The inner wall of the adjusting ring (23) located at the position of the toothed ring (25) is slidably connected to the outer wall of the limiting chamber (3). The rear end of the toothed ring (25) is engaged with a contact wheel (26). The outer wall of the limiting chamber (3) is rotatably connected to the upper and lower ends of the contact wheel (26) by setting an extension frame. The bottom end of the contact wheel (26) is fixedly connected to a worm wheel A (27). The rear side of the worm wheel A (27) is engaged with a worm A (28). The top wall of the mounting base (1) is rotatably connected to the worm A (28) by setting a bracket.

4. The laser-arc hybrid welding device for the inner and outer duct components of the thin-walled flame tube in the combustion chamber according to claim 1, characterized in that: The adjustment frame (6) is set in an "L" shape. The bottom wall of the movable frame (11) and the top wall of the adjustment frame (6) are connected in a sliding manner. The side wall of the contact plate (13) engages with the slot through the insert block. The curvature of the contact plate (13) is consistent with the curvature of the inner wall of the part to be welded. The contact plate (13) is set as a replacement part.

5. The laser-arc hybrid welding device for the inner and outer duct components of the thin-walled flame tube in the combustion chamber according to claim 1, characterized in that: The lifting column (15) is square in shape, and the side wall of the storage tray (16) is provided with a through hole that engages with the telescopic shaft (17). The bottom wall of the storage tray (16) is provided with a guide rail (29) that is slidably connected to the outer wall of the telescopic shaft (17). The support block (18) is an isosceles triangle in shape.

6. The laser-arc hybrid welding device for the inner and outer duct components of the thin-walled flame tube of the combustion chamber according to claim 1, characterized in that: The side wall of the adjustment plate (21) is rotatably connected to the inner wall of the storage plate (16), and the end of the telescopic shaft (17) is slidably connected to the inner wall of the extrusion groove (22) by setting a push rod.

7. The laser-arc hybrid welding device for the inner and outer duct components of the thin-walled combustion chamber flame tube according to claim 1, characterized in that: The bottom end of the lifting column (15) is fixedly connected to the assembly frame (30) below the mounting base (1). The bottom end of the power shaft (20) is fixedly connected to the worm wheel B (31). The outer wall of the worm wheel B (31) is meshed with the worm B (32). The rear end of the worm B (32) is fixedly connected to the servo motor B (33). The servo motor B (33) is fixedly connected to the bottom wall of the assembly frame (30).

8. The laser-arc hybrid welding device for the inner and outer duct components of the thin-walled flame tube of the combustion chamber according to claim 7, characterized in that: The top wall of the combined frame (30) is fixedly connected to the top rod (34) behind the lifting column (15). The top of the top rod (34) is slidably connected to the bottom wall of the limiting chamber (3). The outer surface of the top of the top rod (34) is rotatably connected to the push block (35). The push block (35) is slidably connected to the inner wall of the limiting chamber (3). The end of the push block (35) away from the top rod (34) is rotatably connected to the lead screw B (36). The upper and lower ends of the lead screw B (36) are rotatably connected to the side wall of the limiting chamber (3). The bottom end of the lead screw B (36) extends into the combined frame (30). The bottom end of the lead screw B (36) meshes with the servo motor A (37). The bottom end of the lead screw B (36) meshes with the output shaft of the servo motor A (37) through a bevel gear (38). The combined frame (30) has a gear groove at the position of the bevel gear (38). The servo motor A (37) is fixedly connected to the bottom wall of the mounting base (1).

9. The laser-arc hybrid welding device for the inner and outer duct components of the thin-walled flame tube of the combustion chamber according to claim 1, characterized in that: The laser welding equipment includes a movable support (39), a hinged support A (40) is fixedly connected to the front side wall of the movable support (39), a power component A (41) is fixedly connected to the front top wall of the hinged support A (40), a hinged support B (42) is fixedly connected to the bottom of the power component A (41), a power component B (43) is provided inside the hinged support B (42), a steering component (44) is provided on the right side of the power component B (43), and a welding module (45) is fixedly connected to the bottom of the steering component (44).

10. The laser-arc hybrid welding device for the inner and outer duct components of the thin-walled flame tube in the combustion chamber according to claim 9, characterized in that: A drive assembly (46) is provided between the rear end of the mobile bracket (39) and the mounting base (1). The drive assembly (46) consists of a motor and a lead screw. The component limit clamp and the power assembly in the laser welding equipment are both connected to the external control assembly.

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