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CN-122007632-A - Laser arc composite welding device for inner and outer duct parts of thin-wall flame tube of combustion chamber

CN122007632ACN 122007632 ACN122007632 ACN 122007632ACN-122007632-A

Abstract

The invention discloses a laser arc composite welding device for inner and outer duct parts of a thin-wall flame tube of a combustion chamber, which relates to the technical field of welding of inner and outer duct parts of the flame tube and comprises a mounting base, wherein the side wall of the mounting base is provided with a fixed slot connected with an external laser welding bin, the center position of the top of the mounting base is in through connection with a guide frame, the rear end of the guide frame is fixedly connected with a limiting bin, the top of the mounting base is provided with a part limiting clamp, the top of the rear end of the mounting base is fixedly connected with a lifting rail, the outer surface of the lifting rail is provided with laser welding equipment above the part limiting clamp, the device can enable an adjusting frame to move on the limiting frame through the mutual matching relation between a push ring and a slide bar, and simultaneously drive a moving frame to slide on the adjusting frame through a rotary screw rod A, so that the contact plate is attached to the side wall of a flame tube base and is limited, and the effect of limiting the inner and outer layer base of the flame tube is achieved.

Inventors

  • YAO WEI
  • GUO ZHIRUI

Assignees

  • 贵州航谷动力科技有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (10)

  1. 1. The laser arc composite welding device for the inner and outer duct parts of the thin-wall flame tube of the combustion chamber comprises a mounting base (1), wherein a fixed groove connected with an external laser welding bin is formed in the side wall of the mounting base (1), a guide frame (2) is connected in a penetrating mode at the center of the top of the mounting base (1), and a limit bin (3) is fixedly connected to the rear end of the guide frame (2), and the laser arc composite welding device is characterized in that a part limit clamp is arranged at 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), and laser welding equipment is arranged above the part limit clamp on the outer surface of the lifting rail (4); the component limiting clamp consists of a cylinder limiting clamp and a base limiting clamp, and the cylinder limiting clamp is arranged at the center of the base limiting clamp; The base limiting clamp comprises a limiting frame (5), the limiting frame (5) is fixedly connected to the outer wall of a guide frame (2), six adjusting frames (6) are arranged at the top of the limiting frame (5) in an array mode, sliding rods (7) are fixedly connected to the bottom wall of each adjusting frame (6), a positioning block (8) is fixedly connected to one end, close to the guide frame (2), of the top wall of each adjusting frame (6), a supporting plate (9) is fixedly connected to one end side wall, far away from the guide frame (2), of each positioning block (8), a screw rod A (10) is rotatably connected between each positioning block (8) and the corresponding adjusting frame (6), a movable frame (11) is rotatably connected to one end, far away from the corresponding positioning block (8), of each supporting plate (9) penetrates through the top of each movable frame (11), clamping grooves are formed in the tops of the corresponding movable frames (11) and the tops of the corresponding positioning blocks (8), a contact plate (13) is fixedly connected to one side, far away from the corresponding clamping grooves, of each clamping plate (13) is fixedly connected with a positioning insert rod (14) through a fastening bolt (12); The barrel limiting clamp comprises a lifting column (15), wherein the outer wall of the lifting column (15) and the inner wall of a guide frame (2) form a sliding connection, a storage disc (16) is fixedly connected to the top end of the lifting column (15), a plurality of telescopic shafts (17) are arranged in an array inside the storage disc (16), the telescopic shafts (17) are located at the outer positions of the storage disc (16) and fixedly connected with supporting blocks (18), rubber pads (19) are fixedly connected to the side walls of the supporting blocks (18), power shafts (20) are connected to the inner portions of the lifting column (15) in a rotating mode, adjusting discs (21) are fixedly connected to the top ends of the power shafts (20) and extrusion grooves (22) which are connected with the ends of the telescopic shafts (17) in a sliding mode are formed in the inner portions of the adjusting discs (21).
  2. 2. The laser arc composite welding device for the inner and outer duct parts of the thin-walled flame tube of the combustion chamber according to claim 1, wherein the outer wall of the guide frame (2) is slidably connected with an adjusting ring (23), the outer wall of the guide frame (2) is fixedly connected with a stabilizing frame on the outer surface of the adjusting ring (23), six pushing rings (24) are arranged in an array mode inside the adjusting ring (23), the pushing rings (24) are arranged in a circular arc mode, sliding rods (7) extend into the pushing rings (24), sliding grooves which are slidably connected with the sliding rods (7) are formed in the limiting frame (5), and moving grooves which are slidably connected with the top wall of the limiting frame (5) are formed in the bottom wall of the adjusting frame (6).
  3. 3. The laser arc composite welding device for the inner and outer duct parts of the thin-walled flame tube of the combustion chamber according to claim 2, wherein the back side wall of the adjusting ring (23) is provided with a toothed ring (25) forwards, the inner wall of the adjusting ring (23) positioned at the position of the toothed ring (25) is in sliding connection with the outer wall of the limiting bin (3), the back end of the toothed ring (25) is meshed with a contact wheel (26), the outer wall of the limiting bin (3) is in rotary connection with the upper end and the lower end of the contact wheel (26) through an extension frame, the bottom end of the contact wheel (26) is fixedly connected with a worm wheel A (27), the back side of the worm wheel A (27) is meshed with a worm A (28), and the top wall of the mounting base (1) is in rotary connection with the worm A (28) through a support.
  4. 4. The laser arc composite welding device for the inner and outer duct parts of the thin-walled flame tube of the combustion chamber according to claim 1, wherein the adjusting frame (6) is arranged in an L shape, the bottom wall of the moving frame (11) and the top wall of the adjusting frame (6) form sliding connection, the side wall of the contact plate (13) is meshed with the clamping groove through the inserting block, the radian of the contact plate (13) is consistent with that of the inner wall of a part to be welded, and the contact plate (13) is arranged as a replacement part.
  5. 5. The laser arc composite welding device for the inner and outer duct parts of the thin-walled flame tube of the combustion chamber according to claim 1, wherein the lifting column (15) is square, a through hole meshed with the telescopic shaft (17) is formed in the side wall of the accommodating disc (16), a guide rail (29) which is in sliding connection with the outer wall of the telescopic shaft (17) is arranged on the inner bottom wall of the accommodating disc (16), and the supporting blocks (18) are arranged in an isosceles triangle shape.
  6. 6. The laser arc composite welding device for the inner and outer duct parts of the thin-walled flame tube of the combustion chamber according to claim 1, wherein the side wall of the adjusting disc (21) is in rotary connection with the inner wall of the containing disc (16), and the end head of the telescopic shaft (17) is in sliding connection with the inner wall of the extrusion groove (22) by arranging a push rod.
  7. 7. The laser arc composite welding device for the inner and outer duct parts of the thin-walled flame tube of the combustion chamber according to claim 1, wherein the bottom end of the lifting column (15) is fixedly connected with the combined frame (30) below the mounting base (1), the bottom end of the power shaft (20) is fixedly connected with 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 with the servo motor B (33), and the servo motor B (33) is fixedly connected to the bottom wall of the combined frame (30).
  8. 8. The laser arc hybrid welding device for the inner and outer duct parts of the thin-walled flame tube of the combustion chamber according to claim 7, wherein the top wall of the combined frame (30) is fixedly connected with a push rod (34) at the rear side of the lifting column (15), the top of the push rod (34) is in sliding connection with the bottom wall of the limiting bin (3), the outer surface of the top end of the push rod (34) is rotationally connected with a push block (35), the push block (35) is in sliding connection with the inner wall of the limiting bin (3), one end of the push block (35) far away from the push rod (34) is rotationally connected with a screw rod B (36), the upper end and the lower end of the screw rod B (36) are rotationally connected with the side wall of the limiting bin (3), the bottom end of the screw rod B (36) extends into the combined frame (30), the bottom end of the screw rod B (36) is meshed with a servo motor A (37), the bottom end of the screw rod B (36) is meshed with the output shaft of the servo motor A (37) through a bevel gear (38), the combined frame (30) is located at the bevel gear (38) position, and the servo motor A (37) is fixedly connected with the bottom wall of the installation base (1).
  9. 9. The laser arc composite welding device for the inner and outer duct parts of the thin-walled flame tube of the combustion chamber according to claim 1, wherein the laser welding device comprises a movable support (39), a hinged support A (40) is fixedly connected to the side wall of the front end of the movable support (39), a power component A (41) is fixedly connected to the top wall of the front end 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 arranged in the hinged support B (42), a steering component (44) is arranged 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. 10. The laser arc composite welding device for the inner and outer duct parts of the thin-walled flame tube of the combustion chamber according to claim 9, wherein a driving assembly (46) is arranged between the inside of the rear end of the movable support (39) and the mounting base (1), the driving assembly (46) consists of a motor and a screw rod, and the part limiting clamp and a power assembly in the laser welding equipment are connected with an external control assembly.

Description

Laser arc composite welding device for inner and outer duct parts of thin-wall flame tube of combustion chamber Technical Field The invention relates to the technical field of welding of inner and outer ducts of flame tubes, in particular to a laser arc composite welding device for inner and outer duct parts of a thin-wall flame tube of a combustion chamber. Background The auxiliary power device for the aircraft is a hot end component of an aviation gas turbine engine, high-pressure air and atomized fuel are mixed and combusted in the annular combustion chamber to provide heat energy, the discharged high-temperature fuel gas further converts the heat energy into mechanical energy in a turbine to generate power, the combustion chamber of the turbojet engine is a key component of the hot end of the engine, the manufacturing quality of the combustion chamber directly determines the performance, the reliability and the service life of the engine, the combustion chamber is usually formed by precisely welding high-temperature alloy thin plates, the structure of the combustion chamber is complex, the wall is thin, and the combustion chamber works in high-temperature and high-pressure extreme environments, so that extremely severe requirements are imposed on the welding quality, the geometric precision and the structural integrity. Through retrieving, chinese patent publication No. CN120962220a discloses a shaping welding set for the manufacturing of turbojet engine combustion chamber, including the base, vertical slidable mounting has two mounting panels on the roof of base, has all seted up the card hole on the lateral wall of two mounting panels, fixed mounting has the bracket on the lateral wall of mounting panel, and is equipped with the actuating mechanism that is used for driving two mounting panels synchronous movement on the base, is equipped with annular guide rail on the base, and the slip cap is equipped with the mounting bracket on the annular guide rail, is equipped with the welding machine on the mounting bracket. In the welding process of the combustion chamber, in order to ensure the assembly precision, a welding clamp is required to be used for reliably fixing and clamping the components, however, the heat generated by welding can lead to rapid local temperature rise, obvious thermal stress and uneven plastic strain are caused, so that the workpiece inevitably contracts and deforms, and particularly for a thin-wall combustion chamber, the structural rigidity is low, the welding clamp is extremely sensitive to heat input, and after the welding is completed and the clamp is released, the stresses are redistributed in the form of residual stress, and difficult-to-predict deformation is often caused. Therefore, we propose a laser arc composite welding device for inner and outer duct parts of a thin-wall flame tube of a combustion chamber. Disclosure of Invention The invention aims to provide a laser arc composite welding device for inner and outer duct parts of a thin-wall flame tube of a combustion chamber, so as to solve the problems in the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: the laser arc composite welding device for the inner and outer duct parts of the thin-wall flame tube of the combustion chamber comprises a mounting base, wherein the side wall of the mounting base is provided with a fixed slot connected with an external laser welding bin, the central position of the top of the mounting base is in through connection with a guide frame, the rear end of the guide frame is fixedly connected with a limiting bin, the top of the mounting base is provided with a part limiting clamp, the top of the rear end of the mounting base is fixedly connected with a lifting rail, the outer surface of the lifting rail is positioned above the part limiting clamp and is provided with laser welding equipment, the part limiting clamp consists of a cylinder limiting clamp and a base limiting clamp, the cylinder limiting clamp is arranged at the central position of the base limiting clamp, the base limiting clamp comprises a limiting frame which is fixedly connected with the outer wall of the guide frame, six regulating frames are arranged at the top array of the limiting frame, the bottom wall of the regulating frame is fixedly connected with sliding bars, the top wall of the adjusting frame is fixedly connected with a positioning block near one end of the guide frame, the side wall of one end of the positioning block, which is far away from the guide frame, is fixedly connected with a supporting plate, a screw rod A is rotationally connected between the positioning block and the adjusting frame, one end of the outer surface of the screw rod A, which is far away from one end of the positioning block, is rotationally connected with a movable frame, the supporting plate penetrates through the top of the movable frame, clamping grooves are res