Laser alignment auxiliary fixing tool for propeller component welding

Abstract

The invention relates to the technical field of propeller components, and discloses a laser alignment auxiliary fixing tool for propeller component welding, which comprises a placing table, an arc-shaped notch is formed above the placing table, a workbench is further arranged above the placing table, a circular placing notch is formed above the workbench, and supporting seats are arranged on the periphery of the bottom of the placing table; a positioning plate is arranged above the workbench, and a side thruster component body is placed above the circular placing notch; a concave mounting plate is arranged above the circular placement notch, and a main propeller component body is placed in an inner cavity of the concave mounting plate. According to the invention, the lower circular mounting plate, the upper circular placing plate, the lower circular placing plate and the plurality of circumferentially distributed limiting plates realize accurate positioning of the inner cavity of the main propeller part body, and the upper circular mounting plate driven by the hydraulic cylinder is matched for pressing, so that the vertical clamping is stable, and the positioning reliability is improved; and meanwhile, through cooperation of the circular containing notch of the workbench and the positioning plate, the side propeller component body and the main propeller component body are attached accurately, and the alignment efficiency is high.

Description

Technical Field

[0001] This invention belongs to the technical field of propulsion components, and more specifically, relates to a laser alignment-assisted fixing fixture for welding propulsion components. Background Technology

[0002] In high-end equipment fields such as aerospace and shipbuilding, the thruster, as a core power component, directly determines the stability of the equipment's power output and operational safety through the welding quality of its main thruster and side thruster components. These components are often irregularly shaped, placing extremely high demands on the positioning accuracy, clamping stability, alignment efficiency, and welding adaptability of the tooling during welding. It is necessary not only to ensure the reference positioning accuracy of the main thruster component's internal cavity but also to achieve tight fit and alignment of the main and side thruster components, while simultaneously meeting the requirement for comprehensive coverage of the weld seam by the laser welding assembly.

[0003] Existing tooling positioning mechanisms mostly employ single, fixed-shape positioning blocks or chuck structures, lacking adaptive adjustment and multi-directional collaborative positioning capabilities. Due to dimensional tolerances and irregular contours within the main thruster component's internal cavity, fixed-shape positioning structures cannot accurately conform to the cavity contour, and uneven positioning force distribution easily leads to a phenomenon of "partial fit, overall offset," causing the positioning reference deviation to exceed the welding allowable tolerance, directly affecting the coaxiality and sealing of subsequent welded joints. Furthermore, existing positioning mechanisms lack buffer adjustment components, making the positioning structure prone to loosening due to impacts during component placement, further reducing positioning reliability.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A laser alignment-assisted fixing fixture for welding thruster components includes a placement platform with an arc-shaped slot on top. A worktable is also positioned above the placement platform, with a circular placement slot on top of the worktable. Support seats are provided around the bottom of the placement platform. A positioning plate is positioned above the worktable. A side thruster component body is placed above the circular placement slot. A concave mounting plate is positioned above the circular placement slot, and a main thruster component body is placed inside the concave mounting plate. A lower circular mounting plate is positioned below the concave mounting plate, and a lower circular placement plate is positioned above the lower circular mounting plate. A hydraulic cylinder is positioned above the concave mounting plate, and an upper circular mounting plate is positioned at the output end of the hydraulic cylinder. An upper circular placement plate is positioned below the upper circular mounting plate. Multiple circumferentially distributed limiting plates are positioned above the lower circular mounting plate and below the upper circular mounting plate. Each limiting plate is used to position the inner cavity of the main thruster component body, and the upper circular placement plate is used to position the placed main thruster component body.

[0006] In a preferred embodiment of the present invention, two electric tracks are provided above the workbench. The two electric tracks are symmetrical to each other. Sliding blocks are slidably arranged on each of the two electric tracks. The two sliding blocks are symmetrical to each other. Connecting rods are provided above the two sliding blocks. Mounting plates are provided above the two connecting rods. Pins pass through the mounting plates. Positioning plates are provided at the bottom of the pins. The positioning plates are attached to the workbench.

[0007] In a preferred embodiment of the present invention, an irregularly shaped guide plate is provided at the end of the worktable away from the arc-shaped groove. The two irregularly shaped guide plates are symmetrical to each other and are used to drive the positioning plate to move vertically and tilted.

[0008] In a preferred embodiment of the present invention, two support frames are also provided above the workbench. The two support frames are symmetrical to each other, and a top plate is provided above the two support frames. A laser welding assembly is provided at the bottom of the top plate.

[0009] In a preferred embodiment of the present invention, a fixing plate is further provided on the placement platform, a servo motor is provided on the fixing plate, a rotating rod is provided at the output end of the servo motor, the rotating rod movably passes through the fixing plate, and the end of the rotating rod away from the servo motor is provided on a concave mounting plate.

[0010] In a preferred embodiment of the present invention, a plurality of circumferentially distributed movable grooves are provided on the opposite side walls of the lower circular mounting plate and the upper circular mounting plate. A movable slider is slidably disposed in the inner cavity of each movable groove. A limit plate is provided at one end of each movable slider away from the movable groove. A return spring is also provided on each movable slider. The other end of each return spring is disposed on the inner wall of the movable groove.

[0011] In a preferred embodiment of the present invention, a circular mounting cylinder is provided between the lower circular mounting plate and the upper circular mounting plate, and a circular insertion rod is inserted into each of the two circular mounting cylinders. The opposite sidewalls of the two circular insertion rods are respectively provided on the lower circular mounting plate and the upper circular mounting plate.

[0012] In a preferred embodiment of the present invention, both the lower circular placement plate and the upper circular placement plate are provided with a plurality of equally spaced placement slots, and both the lower circular placement plate and the upper circular placement plate are provided with a plurality of equally spaced elastic telescopic rods on the side wall opposite to the lower circular mounting plate and the upper circular mounting plate, respectively.

[0013] In a preferred embodiment of the present invention, each of the limiting plates is provided with a connecting rod on its opposite side walls, and each connecting rod is symmetrical to the other two.

[0014] In a preferred embodiment of the present invention, a plurality of mutually symmetrical fixing blocks are provided on the opposite side walls of the lower circular placement plate and the upper circular placement plate. Each fixing block is provided with a fixing bearing on its opposite side wall. Each fixing bearing is provided with a rotating rod. A flipping plate is provided between each pair of rotating rods. Each rotating rod is provided with a torsion spring. The two ends of each torsion spring are respectively provided on the opposite side wall of the flipping plate and the fixing bearing.

[0015] Compared with the prior art, the present invention has the following advantages: This invention utilizes a lower circular mounting plate, upper and lower circular placement plates, and multiple circumferentially distributed limiting plates to achieve precise positioning of the main thruster component's internal cavity. Combined with pressure applied by the upper circular mounting plate driven by a hydraulic cylinder, vertical clamping is stable, improving positioning reliability. Simultaneously, through the collaboration of the circular placement slot on the worktable and the positioning plate, the side thruster component body and the main thruster component body are precisely fitted together, resulting in high alignment efficiency. Furthermore, a servo motor drives the rotating rod and the concave mounting plate to rotate the components, facilitating efficient all-around welding of the laser welding assembly and significantly improving welding quality and operational efficiency.

[0016] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram: Figure 1 A three-dimensional structural schematic diagram of a laser alignment-assisted fixing fixture for welding a thruster component; Figure 2 A side view of a laser alignment-assisted fixing fixture for welding a thruster component; Figure 3 A schematic diagram of a concave mounting plate structure for a laser alignment-assisted fixing fixture for welding a thruster component; Figure 4 A laser alignment-assisted fixing fixture for welding a thruster component. Figure 3 Enlarged structural diagram of the concave mounting plate; Figure 5 A three-dimensional structural diagram of a concave mounting plate for a laser alignment-assisted fixing fixture for welding a thruster component; Figure 6 A bottom view of the concave mounting plate of a laser alignment-assisted fixing fixture for welding a thruster component; Figure 7 A schematic diagram of the lower circular placement plate structure of a laser alignment-assisted fixing fixture for welding a thruster component; Figure 8A bottom view of the lower circular placement plate of a laser alignment-assisted fixing fixture for welding a thruster component; Figure 9 A laser alignment-assisted fixing fixture for welding a thruster component. Figure 8 Enlarged structural diagram at point A in the middle.

[0018] In the picture: 1. Placement platform; 11. Support base; 111. Arc-shaped slot; 12. Workbench; 121. Circular placement slot; 13. Support frame; 131. Top plate; 132. Laser welding assembly; 14. Fixing plate; 15. Electric track; 151. Sliding block; 152. Connecting rod; 153. Mounting plate; 154. Pin; 155. Positioning plate; 156. Irregularly shaped guide plate; 16. Side thruster component body; 161. Main thruster component body; 2. Servo motor; 21. Rotary rod; 22. Concave mounting plate; 3. Hydraulic cylinder; 31. Lower circular mounting plate; 311. Lower circular placement plate; 312. Upper circular mounting plate; 313. Upper circular placement plate; 314. Placement slot; 32. Moving slide; 321. Moving slider; 322. Return spring; 323. Limiting plate; 324. Connecting rod; 33. Circular mounting cylinder; 332. Circular plug-in rod; 34. Elastic telescopic rod; 35. Fixing block; 351. Fixed bearing; 352. Rotating rod; 353. Torsion spring; 354. Flipping plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0020] Example 1: like Figures 1 to 9As shown, a laser alignment auxiliary fixing fixture for welding thruster components includes a placement platform 1, with an arc-shaped slot 111 on top of the placement platform 1. A worktable 12 is also provided above the placement platform 1, with a circular placement slot 121 on top of the worktable 12. Support seats 11 are provided around the bottom of the placement platform 1. A positioning plate 155 is provided above the worktable 12. The side thruster component body 16 is placed above the circular placement slot 121. A concave mounting plate 22 is provided above the circular placement slot 121, and the main thruster component body 161 is placed inside the concave mounting plate 22. A positioning plate 155 is provided below the concave mounting plate 22. A lower circular mounting plate 31 is provided, and a lower circular placement plate 311 is provided above the lower circular mounting plate 31. A hydraulic cylinder 3 is provided above the inner cavity of the concave mounting plate 22. An upper circular mounting plate 312 is provided at the output end of the hydraulic cylinder 3. An upper circular placement plate 313 is provided below the upper circular mounting plate 312. Multiple limiting plates 323 are provided above the lower circular mounting plate 31 and below the upper circular mounting plate 312, and each limiting plate 323 is used to position the inner cavity of the main thruster component body 161. The upper circular placement plate 313 is used to position the placed main thruster component body 161. The lower circular mounting plate 31, the upper and lower circular placement plates 311, and the multiple circumferentially distributed limiting plates 323 achieve precise positioning of the inner cavity of the main thruster component body 161. In conjunction with the pressure applied by the upper circular mounting plate 312 driven by the hydraulic cylinder 2, the vertical clamping is stable, improving positioning reliability. At the same time, through the circular placement slot of the worktable 12 and the 121 positioning plate, the side thruster component body 16 and the main thruster component body 161 are precisely fitted together, with high alignment efficiency. The servo motor 2 drives the rotating rod 21 and the concave mounting plate 22 to drive the component to rotate, which helps the laser welding assembly 132 to complete all-round and efficient welding, greatly improving welding quality and operation efficiency.

[0021] like Figures 1 to 3 As shown, in a specific embodiment, two electric tracks 15 are also provided above the workbench 12. The two electric tracks 15 are symmetrical to each other, and each of the two electric tracks 15 has a sliding block 151 slidably mounted on it. The two sliding blocks 151 are also symmetrical to each other. A connecting rod 152 is provided above each of the two sliding blocks 151, and a mounting plate 153 is provided above the two connecting rods 152. A pin 154 passes through the top of the mounting plate 153, and a positioning plate 155 is provided at the bottom of the pin 154. The positioning plate 155 is attached to the workbench 12. In this configuration, the specific installation position of the positioning plate 155 is determined.

[0022] like Figures 1 to 3As shown, furthermore, an irregularly shaped guide plate 156 is provided at the end of the worktable 12 away from the arc-shaped slot 111. The two irregularly shaped guide plates 156 are symmetrical to each other and are used to drive the positioning plate 155 to move vertically and tilted. In this configuration, the installation position of the irregularly shaped guide plates 156 is determined to ensure that the positioning plate 155 can move up and down when it moves onto the irregularly shaped guide plates 156.

[0023] like Figures 1 to 2 As shown, furthermore, two support frames 13 are provided above the workbench 12. The two support frames 13 are symmetrical to each other, and a top plate 131 is provided above the two support frames 13. A laser welding assembly 132 is provided at the bottom of the top plate 131. In this configuration, the installation position of the laser welding assembly 132 is determined.

[0024] Example 2: The difference between Embodiment 1 and this embodiment is that: Figures 1 to 6 As shown, a laser alignment auxiliary fixing fixture for welding thruster components includes a placement platform 1 with a fixing plate 14. A servo motor 2 is mounted on the fixing plate 14, and a rotating rod 21 is mounted at the output end of the servo motor 2. The rotating rod 21 movably passes through the fixing plate 14, with the end of the rotating rod 21 away from the servo motor 2 mounted on a concave mounting plate 22. This setup determines the mounting position of the servo motor 2, ensuring that the concave mounting plate 22 can rotate when the servo motor 2 operates.

[0025] Example 3: The difference between Embodiment 2 and this embodiment is that: Figures 1 to 8 As shown, a laser alignment auxiliary fixing fixture for welding propeller components has multiple circumferentially distributed movable grooves 32 on opposite side walls of the lower circular mounting plate 31 and the upper circular mounting plate 312. Each movable groove 32 has a sliding slider 321 slidably mounted within its inner cavity. Each sliding slider 321 has a limiting plate 323 at one end distal to the movable groove 32, and each sliding slider 321 also has a return spring 322. The other end of each return spring 322 is mounted on the inner wall of the movable groove 32. In this design, the positions of the movable grooves 32 and the installation positions of the limiting plates 323 are determined.

[0026] like Figures 1 to 8 As shown in the specific embodiment, a circular mounting cylinder 33 is provided in the middle of both the lower circular mounting plate 31 and the upper circular mounting plate 312. A circular insertion rod 332 is inserted into each of the two circular mounting cylinders 33. The opposite sidewalls of the two circular insertion rods 332 are respectively provided on the lower circular placement plate 311 and the upper circular placement plate 313. In this configuration, the installation positions of the circular mounting cylinders 31 and the circular insertion rods 332 are determined.

[0027] like Figures 1 to 8As shown, furthermore, both the lower circular placement plate 311 and the upper circular placement plate 313 are provided with multiple equally spaced placement slots 314, and both the lower circular placement plate 311 and the upper circular placement plate 313 are provided with multiple equally spaced elastic telescopic rods 34 on their respective side walls opposite to the lower circular mounting plate 31 and the upper circular mounting plate 312. This design ensures that the lower circular placement plate 311 and the upper circular placement plate 313 can reset themselves when the compressive force is lost.

[0028] like Figures 1 to 8 As shown, furthermore, each limiting plate 323 has a connecting rod 324 on each of its opposite side walls, and each connecting rod 324 is symmetrical to the other two. In this configuration, the installation position of the connecting rod 324 is determined.

[0029] like Figures 1 to 9 As shown, furthermore, multiple symmetrical fixing blocks 35 are provided on opposite side walls of the lower circular placement plate 311 and the upper circular placement plate 313. Each fixing block 35 has a fixing bearing 351 on its opposite side wall, and a rotating rod 352 is mounted on each fixing bearing 351. A flipping plate 354 is positioned between each pair of rotating rods 352, and a torsion spring 353 is mounted on each rotating rod 352. The two ends of each torsion spring 353 are respectively positioned on the opposite side wall of the flipping plate 354 and the fixing bearing 351. This configuration ensures that the flipping plate 354 can rotate.

[0030] The implementation principle of the laser alignment-assisted fixing fixture for welding thruster components according to the present invention is as follows: The operator first places the main thruster component body 161 onto the lower circular mounting plate 311. After placement, the weight of the main thruster component body 161 will cause the lower circular mounting plate 311 to move downwards. During this process, the circular insertion rod 332 on the lower circular mounting plate 311 will be inserted into the circular mounting cylinder 33 in the middle of the lower circular mounting plate 31. At the same time, as the lower circular mounting plate 311 moves downwards, it will cause the flip plate 354 on one side to move downwards synchronously. Under the squeezing action of the lower circular mounting plate 31, the flip plate 354 rotates with the help of the fixed bearing 351 on the fixed block 35. When the rotating rod 352 rotates, the torsion spring 353 on the rotating rod 352 deforms accordingly. (Because the initial position of the flipping plate 354 is attached to the connecting rod 324, and the connecting rod 324 is set on the limiting plate 323, as shown in the figure, this is the initial position of the torsion spring 353. Therefore, when the flipping plate 354 flips, the limiting plate 323 loses its limiting force, so that the limiting plate 323 can move synchronously with the assistance of the return spring 322, the moving slider 321, and the moving groove 32, thereby driving the limiting plate 323 connected to the connecting rod 324 to move synchronously.) When the circular insertion rod 332 is fully inserted into the inner cavity of the circular mounting cylinder 33, the limiting plate 323 just passes through the placement slot 314 on the lower circular placement plate 311. At this time, the circular insertion rod 332 is in the open state, so it can achieve precise positioning of the inner cavity of the main thruster component body 161. Moreover, the torque of the torsion spring 353 on the rotating rod 352 is greater than the elastic force of the return spring 322 on the moving slider 321, ensuring positioning stability. At the same time, the elastic telescopic rod 34 between the lower circular placement plate 311 and the lower circular mounting plate 31 will adapt and extend, further improving placement stability. Subsequently, the staff controlled the hydraulic cylinder 3 at the bottom of the top plate 131 to operate. The output end of the hydraulic cylinder 3 drove the upper circular mounting plate 312 to move downward. The upper circular placement plate 313 moved down synchronously with the upper circular mounting plate 312 until it was in contact with the upper surface of the main thruster component body 161. At this time, the upper circular placement plate 313 would repeat the action of the lower circular placement plate 311. Its corresponding circular insertion rod 332 was inserted into the upper circular mounting cylinder 33. The flip plate 354, the moving slider 321, the return spring 322 and other components worked together to drive the upper limiting plate 323 through the placement slot 314 of the upper circular placement plate 313. It cooperated with the lower limiting plate 323 to complete the vertical clamping and fixing of the main thruster component body 161. The elastic telescopic rod 34 between the upper circular placement plate 313 and the upper circular mounting plate 312 also played an auxiliary buffering and fixing role. Next, the staff placed the side thruster component body 16 into the circular placement slot 121 of the workbench 12. After placement, the staff controlled the two symmetrical electric tracks 15 above the workbench 12 to run. The electric tracks 15 drove the sliding block 151 on them to move. The sliding block 151 drove the mounting plate 153 to move synchronously through the connecting rod 152. The positioning plate 155 connected to the mounting plate 153 by the pin 154 moved horizontally. During the movement, the positioning plate 155 slid along the inclined surface of the irregular guide plate 156 at the end of the workbench 12 away from the arc slot 111, thereby achieving vertical tilting movement. Finally, the staff pushed the side thruster component body 16 towards the main thruster component body 161 until the two were tightly fitted together, completing the alignment and positioning. After alignment, the operator controls the laser welding assembly 132 at the bottom of the top plate 131 above the support frame 13 to weld the mating area between the side thruster component body 16 and the main thruster component body 161. When the welding reaches a certain point, the operator controls the servo motor 2 mounted on the fixed plate 14 on the placement platform 1 to run. The output end of the servo motor 2 drives the rotating rod 21 to rotate. The end of the rotating rod 21 away from the servo motor 2 is connected to the concave mounting plate 22. Therefore, the concave mounting plate 22 will rotate synchronously with the rotating rod 21, thereby driving the main thruster component body 161 fixed on it and the mating side thruster component body 16 to rotate together. This allows the laser welding assembly 132 to complete the welding operation of both parts more efficiently. Throughout the process, the support base 11 at the bottom of the placement platform 1 provides stable support for the tooling, and the arc-shaped slot 111 provides sufficient space for the rotation of the components, ensuring a smooth welding process.

Claims

1. A laser alignment-assisted fixing fixture for welding propeller components, comprising a placement stage (1), characterized in that: An arc-shaped slot (111) is provided above the placement platform (1). A workbench (12) is also provided above the placement platform (1). A circular placement slot (121) is provided above the workbench (12). Support seats (11) are provided around the bottom of the placement platform (1). A positioning plate (155) is provided above the workbench (12). The side thruster component body (16) is placed above the circular placement slot (121). A concave mounting plate (22) is provided above the circular placement slot (121), and the main thruster component body (161) is placed in the inner cavity of the concave mounting plate (22). A lower circular mounting plate (31) is provided below the inner cavity of the concave mounting plate (22), and a lower circular placement plate (311) is provided above the lower circular mounting plate (31). A hydraulic cylinder (3) is provided above the inner cavity of the concave mounting plate (22), and an upper circular mounting plate (312) is provided at the output end of the hydraulic cylinder (3). An upper circular placement plate (313) is provided below the upper circular mounting plate (312). Multiple circumferentially distributed limiting plates (323) are provided above the lower circular mounting plate (31) and below the upper circular mounting plate (312). Each limiting plate (323) is used to position the inner cavity of the main thruster component body (161), and the upper circular placement plate (313) is used to position the placed main thruster component body (161).

2. The laser alignment-assisted fixing fixture for welding propeller components according to claim 1, characterized in that, Two electric tracks (15) are also provided above the workbench (12). The two electric tracks (15) are symmetrical to each other. Sliding blocks (151) are slidably provided on each of the two electric tracks (15). The two sliding blocks (151) are symmetrical to each other. Connecting rods (152) are provided above each of the two sliding blocks (151). Mounting plates (153) are provided above the two connecting rods (152). Pins (154) pass through the top of the mounting plates (153). Positioning plates (155) are provided at the bottom of the pins (154). The positioning plates (155) are attached to the workbench (12).

3. The laser alignment-assisted fixing fixture for welding propeller components according to claim 2, characterized in that, The workbench (12) is provided with an irregularly shaped guide plate (156) at one end away from the arc-shaped slot (111). The two irregularly shaped guide plates (156) are symmetrical to each other and are used to drive the positioning plate (155) to move vertically and tilted.

4. The laser alignment-assisted fixing fixture for welding propeller components according to claim 2, characterized in that, Two support frames (13) are also provided above the workbench (12). The two support frames (13) are symmetrical to each other. A top plate (131) is provided above the two support frames (13), and a laser welding assembly (132) is provided at the bottom of the top plate (131).

5. The laser alignment-assisted fixing fixture for welding propeller components according to claim 1, characterized in that, The placement platform (1) is also provided with a fixing plate (14), a servo motor (2) is provided on the fixing plate (14), a rotating rod (21) is provided at the output end of the servo motor (2), the rotating rod (21) is movably passed through the fixing plate (14), and the end of the rotating rod (21) away from the servo motor (2) is provided on the concave mounting plate (22).

6. The laser alignment-assisted fixing fixture for welding propeller components according to claim 1, characterized in that, The lower circular mounting plate (31) and the upper circular mounting plate (312) each have a plurality of circumferentially distributed movable grooves (32) on their opposite side walls. Each movable groove (32) has a movable slider (321) slidably disposed in its inner cavity. Each movable slider (321) has a limit plate (323) disposed at one end of the movable groove (32). Each movable slider (321) is also provided with a return spring (322), and the other end of each return spring (322) is disposed on the inner wall of the movable groove (32).

7. The laser alignment-assisted fixing fixture for welding propeller components according to claim 6, characterized in that, A circular mounting cylinder (33) is provided between the lower circular mounting plate (31) and the upper circular mounting plate (312). A circular insertion rod (332) is inserted into each of the two circular mounting cylinders (33). The opposite side walls of the two circular insertion rods (332) are respectively provided on the lower circular placement plate (311) and the upper circular placement plate (313).

8. The laser alignment-assisted fixing fixture for welding propeller components according to claim 1, characterized in that, Both the lower circular placement plate (311) and the upper circular placement plate (313) are provided with multiple equally spaced placement slots (314). Both the lower circular placement plate (311) and the upper circular placement plate (313) are provided with multiple equally spaced elastic telescopic rods (34) on the side wall opposite to the lower circular mounting plate (31) and the upper circular mounting plate (312), respectively.

9. The laser alignment-assisted fixing fixture for welding propeller components according to claim 1, characterized in that, Each of the limiting plates (323) is provided with connecting rods (324) on its opposite side walls, and each of the connecting rods (324) is symmetrical to each other.

10. The laser alignment-assisted fixing fixture for welding propeller components according to claim 1, characterized in that, The lower circular placement plate (311) and the upper circular placement plate (313) are each provided with a plurality of fixed blocks (35) that are symmetrical to each other on their opposite side walls. Each fixed block (35) is provided with a fixed bearing (351) on its opposite side wall. Each fixed bearing (351) is provided with a rotating rod (352). Each rotating rod (352) is provided with a flip plate (354) between each pair of rotating rods (352). Each rotating rod (352) is provided with a torsion spring (353). The two ends of each torsion spring (353) are respectively provided on the opposite side wall of the flip plate (354) and the fixed bearing (351).

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