A shaping device and method for aerospace conduit tips

Abstract

This invention discloses a shaping device and method for aerospace conduit tips: Step 1) Select a corrective sleeve matching the specifications of the conduit to be shaped; Step 2) Place the corrective sleeve on an expansion sleeve and a corrective rod; wherein the expansion sleeve is fitted onto the corrective rod, and the spherical inner wall of the corrective sleeve abuts against the spherical end of the corrective rod; Step 3) Move the corrective rod laterally, causing the conical fixing part on the corrective rod to push against the inner wall of the expansion sleeve, making the expansion sleeve, corrective rod, and corrective sleeve coaxial and fixedly connected; Step 4) Drive the corrective rod to rotate the corrective sleeve, driving the conduit to move laterally, so that the deformed end of the conduit abuts against the conical outer surface of the corrective sleeve, and the contact area continuously increases; Step 5) Remove the conduit. In this way, conduits of different specifications can be processed, and deformed ends can be repaired into a complete circle.

Description

Technical Field

[0001] This invention relates to the aerospace field, and more particularly to a shaping device and method for the end of an aerospace conduit. Background Technology

[0002] For lightweight design requirements, aerospace applications often use thin-walled tubes. However, thin-walled tubes are prone to end deformation and loss of roundness during transportation and processing.

[0003] Patent document CN216574984U discloses a round tube repair device, including a base, a round tube support frame for supporting the round tube to be repaired, and an expansion sleeve mechanism and a connecting mechanism. The expansion sleeve mechanism includes a mounting plate, an expansion sleeve, and a mandrel arranged coaxially. The mounting plate is fixedly connected to the connecting mechanism, and a shaft hole is provided at the center of the mounting plate. The expansion sleeve has a hollow barrel-shaped structure, composed of multiple circumferentially arranged expansion sleeve petals. The inner side of the end of each expansion sleeve petal away from the mounting plate is a conical surface. The conical surfaces of the multiple expansion sleeve petals together form a conical hole, the diameter of which gradually increases in the direction away from the mounting plate. Each expansion sleeve petal is slidably connected to the mounting plate and slides radially relative to the mounting plate. The mandrel passes through the mounting plate and the expansion sleeve. A nut is connected to one end of the mandrel located outside the mounting plate, and the other end is a conical portion that mates with the conical hole.

[0004] The existing technology has the following problems: 1) Because the expansion sleeve has a minimum radius, the specifications of the pipe fittings that the existing technology device can repair are limited; 2) Because there will be a gap between the two connected expansion sleeve flaps after the expansion sleeve expands, the edge of the repaired pipe fitting may be creased, affecting the use effect of the pipe fitting. Summary of the Invention

[0005] In order to solve the problem of irregular rounding of tube ends in the prior art, the purpose of this invention is to provide a shaping device and method for tube ends of aerospace conduits, which can repair and restore deformed tube ends.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A method for shaping the end of an aerospace conduit, with the following specific steps: Step 1) Select a corrective sleeve that matches the specifications of the conduit to be shaped; Step 2) Place the corrective sleeve on the expansion sleeve and the corrective rod; wherein, the expansion sleeve is placed on the corrective rod, and the spherical inner wall of the corrective sleeve abuts against the spherical end of the corrective rod; Step 3) Move the corrective rod laterally, so that the conical fixing part on the corrective rod pushes against the inner wall of the expansion sleeve, causing the expansion sleeve to expand outward and abut against the inner wall of the corrective sleeve; wherein, during the expansion of the expansion sleeve, the expansion sleeve section increases the contact area of ​​the corrective sleeve, thereby driving the corrective sleeve to slide on the end of the corrective rod, so that the expansion sleeve, the corrective rod, and the corrective sleeve are aligned, coaxial, and fixedly connected; Step 4) Drive the corrective rod to rotate the corrective sleeve, drive the conduit to move laterally, so that the deformed end of the conduit abuts against the conical outer surface of the corrective sleeve and continuously increases the contact area; Step 5) Remove the conduit.

[0007] Preferably, one end of the expansion sleeve is a multi-lobed, flower-shaped end, and the inner hole of the flower-shaped end of the expansion sleeve matches the fixing part of the orthotic rod.

[0008] Preferably, the left end of the orthotic sleeve has a cylindrical connecting groove, the expansion sleeve is located in the connecting groove, the right end of the connecting groove has a spherical positioning groove, and the spherical end of the orthotic rod is a positioning end that matches the positioning groove.

[0009] Preferably, the orthotic rod is mounted on a workbench, the expansion sleeve is rotatably connected to the workbench, and a cylinder for driving the orthotic rod to move laterally is mounted on the workbench.

[0010] Preferably, the orthotic rod is mounted on a workbench, the expansion sleeve is rotatably connected to the workbench, and a servo motor for driving the orthotic rod to rotate is mounted on the workbench.

[0011] Preferably, the orthotic rod is mounted on the workbench, and an installation sleeve is fitted on the orthotic rod. The installation sleeve is rotatably connected to the workbench. An expansion sleeve is fixed on the installation sleeve. A spring is fitted on the orthotic rod, and the two ends of the spring abut against the fixed end of the orthotic rod and the installation sleeve, respectively.

[0012] Preferably, the orthotic rod is mounted on a workbench, on which a chamfering assembly for chamfering is rotatably mounted.

[0013] Preferably, the orthotic rod is mounted on a workbench, which is equipped with a vacuuming assembly for cleaning the duct.

[0014] Preferably, the orthotic rod is mounted on a workbench, on which a positioning component for positioning is rotatably mounted.

[0015] A shaping device for aerospace conduit ends that applies the above-described shaping method for aerospace conduit ends.

[0016] The beneficial effects of the technical solution of the present invention are as follows: by replacing the orthotic sleeves of different specifications, the tube ends of catheters of different specifications can be shaped; the orthotic sleeve can automatically align and fix with the orthotic rod, which can prevent the tube end from shifting; the contact area between the orthotic sleeve and the catheter gradually increases, so that the conical side of the orthotic sleeve can be used to shape smaller or larger tubes, which can effectively reduce the impact of the shaping process on the catheter, and make the tube end after shaping present a standard circle, which can avoid creases on the tube end, thereby affecting the performance of the catheter itself, and can ensure the accuracy and yield of the tube. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the shaping device for aerospace conduit ends in this invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the installation structure of the shaping component;

[0019] Figure 3 Schematic diagram of the installation structure of the chamfering assembly, shaping assembly, positioning assembly, and dust collection assembly. Figure 1 ;

[0020] Figure 4 Schematic diagram of the installation structure of the chamfering assembly, shaping assembly, positioning assembly, and dust collection assembly. Figure 2 ;

[0021] Figure 5 Schematic diagram of the orthopedic sleeve Figure 1 ;

[0022] Figure 6 Schematic diagram of the orthopedic sleeve Figure 2 ;

[0023] Figure 7 This is a schematic diagram of the orthotic rod.

[0024] Figure 8 This is a structural diagram of the mounting sleeve.

[0025] Reference numerals: 11. Worktable; 12. First mounting base; 13. Fourth mounting base; 14. Eighth mounting base; 15. Seventh mounting base; 16. Top cover; 21. Bracket; 22. Servo motor; 23. First pulley; 24. Second pulley; 25. Transmission belt; 26. First gear; 27. Second gear; 31. Second cylinder; 32. Fourth gear; 33. Drive shaft; 34. Cutting head; 41. First cylinder; 42. Third gear; 43. 431. Orthotic rod; 431. Cone head; 4311. Fixing part; 4312. Positioning end; 4313. Locking part; 432. Push-pull rod; 44. Mounting sleeve; 45. Expansion sleeve; 46. Orthotic sleeve; 461. Roughing part; 462. Shaping part; 463. Connecting groove; 464. Positioning groove; 47. Return spring; 51. Third cylinder; 52. Positioning rod; 61. Air inlet; 62. Dust suction pipe; 63. Air nozzle; 64. Fourth cylinder; 7. Conduit. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless explicitly defined otherwise.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The following examples use Figure 2 The directions shown are for reference. Figure 2 In the middle, the position of the conduit 7 is taken as the left and the position of the first cylinder 41 is taken as the right, and the front and back are discussed in terms of left and right.

[0032] Example

[0033] A method for shaping the end of an aerospace conduit includes the following steps: Step 1) Select a shaping sleeve 46 that matches the specifications of the conduit to be shaped; Step 2) Place the shaping sleeve 46 onto the expansion sleeve 45 and the shaping rod 43; wherein the expansion sleeve 45 is fitted onto the shaping rod 43, and the spherical inner wall of the shaping sleeve 46 abuts against the spherical end of the shaping rod 43; Step 3) Move the shaping rod 43 laterally, so that the conical fixing part 4311 on the shaping rod 43 pushes against the inner wall of the expansion sleeve 45, causing the expansion sleeve to expand... The sleeve 45 expands outward and abuts against the inner wall of the gradually deforming sleeve 46. During the expansion of the sleeve 45, the deforming sleeve 46 can be driven to slide along the end of the deforming rod 43, so that the sleeve 45, the deforming rod 43 and the deforming sleeve 46 are aligned, coaxial and fixedly connected; wherein, the inner hole of the sleeve 45 matches the fixing part 4311; in step 4), the deforming rod 43 drives the deforming sleeve 46 to rotate, drives the conduit 7 to move laterally, so that the deformed end of the conduit 7 is gradually fitted onto the tapered outer surface of the deforming sleeve 46.

[0034] With this setup, different sizes of orthotic sleeves 46 can be used to shape the ends of catheters of different specifications. In the above method, the orthotic sleeve 46 can automatically align and fix with the orthotic rod 43, preventing the catheter opening from shifting. In the above method, the contact area between the orthotic sleeve 46 and the catheter gradually increases. This allows the conical side of the orthotic sleeve 46 to shape smaller or more deformable tubes, effectively reducing the impact of the shaping process on the catheter and ensuring that the shaped end presents a standard circle. This avoids creases at the catheter end, which could affect the performance of the catheter and ensure a high yield rate for the tubes.

[0035] like Figure 1-8 The illustrated shaping device for aerospace conduit ends can shape the ends of aerospace conduits using the aforementioned shaping method. The device includes a worktable 11 and shaping components, chamfering components, dust extraction components, and positioning components mounted on the worktable 11. The shaping components include the expansion sleeve 45, the straightening sleeve 46, and the straightening rod 43. The straightening rod 43 is mounted on the worktable 11 and can rotate and move laterally on the worktable 11.

[0036] To facilitate the connection between the orthotic rod 43 and the orthotic sleeve 46, in this embodiment, one end of the expansion sleeve 45 is a multi-lobed flowering end 451. The inner hole of the flowering end 451 of the expansion sleeve 45 is conical and matches the fixing part 4311 of the orthotic rod 43. In step 3), after the orthotic rod 43 moves laterally, the fixing part 4311 of the orthotic rod 43 gradually inserts into the inner hole of the flowering end and pushes against the inner wall of the flowering end 451 of the expansion sleeve 45, causing the flowering end 451 of the expansion sleeve 45 to open and gradually abut against the inner wall of the orthotic sleeve 46, thereby fixing the orthotic sleeve. This design, using an integrated expansion sleeve 45, simplifies the structure of the device.

[0037] In order to align and position the orthotic rod 43 and the orthotic sleeve 46, in this embodiment, the left end of the orthotic sleeve 46 is provided with a cylindrical connecting groove 463, the right end of the connecting groove 463 is provided with a spherical positioning groove 464, and the spherical end of the orthotic rod 43 is the positioning end 4312; in step 2), the expansion sleeve 45 is located inside the connecting groove 463 in the orthotic sleeve 46, and the positioning end 4312 of the orthotic rod 43 abuts against the inner wall of the positioning groove 464; in step 3), the expansion sleeve 45 gradually expands and gradually abuts against the inner wall of the connecting groove 463, and the orthotic sleeve 46 moves on the spherical positioning end 4312 of the orthotic rod 43, so that the orthotic rod 43 and the orthotic sleeve 46 gradually become coaxial, and the orthotic rod 43, the expansion sleeve 45 and the orthotic sleeve 46 are gradually fixed. With this configuration, the cylindrical fixing groove corresponds to the expansion sleeve 45, and the positioning end 4312 corresponds to the positioning groove 464, which makes it easier for the orthopedic sleeve 46 and the orthopedic rod 43 to be aligned and positioned.

[0038] For ease of installation, in this embodiment, the shaping device further includes a workbench 11, on which the shaping assembly, chamfering assembly, dust extraction assembly, and positioning assembly are all mounted; as shown Figure 2 As shown, a first mounting base 12 and a second mounting base are fixedly installed on the workbench 11. The first mounting base 12 is located to the left of the second mounting base. A mounting sleeve 44 is rotatably installed on the right end of the second mounting base. A reset groove is opened at the right end of the mounting sleeve 44. The left end of the expansion sleeve 45 is inserted into the reset groove and fixedly connected. The right end of the expansion sleeve 45 is a flower-shaped end 451. The orthotic rod 43 passes through the expansion sleeve 45, the mounting sleeve 44, and the second mounting base from right to left and is connected to the first mounting base 12. The left side of the fixing part 4311 of the orthotic rod 43 is located in the reset groove. A reset spring 47 is installed in the reset groove. The two ends of the reset spring 47 abut against the inner wall of the reset groove and the side wall of the fixing part 4311, respectively. This arrangement facilitates the installation and positioning of the orthotic rod 43, and allows the spring to drive the orthotic rod 43 to reset, causing the expansion sleeve 45 to disengage from the orthotic sleeve 46, making it easy to remove the orthotic sleeve 46. Furthermore, the left end of the mounting sleeve 44 is inserted into the second mounting base and rotatably connected by a bearing, and the left end of the fixed sleeve is connected to the second mounting base by an oil seal.

[0039] To facilitate catheter shaping, in this embodiment, as follows: Figure 2 and Figure 5As shown, the right side of the orthopedic sleeve is a hemispherical roughing section 461, and the conical part of the orthopedic sleeve 46 is the shaping section 462, located to the left of the roughing section 461. During the catheter tip shaping process, the deformed catheter tip first abuts against the spherical surface of the roughing section 461, allowing the deformed tip to gradually recover, thus performing roughing on the deformed tip. This process does not require high precision but can quickly restore the deformed tip, so the axial deformation of the roughing section is relatively large. After the deformed catheter has been initially restored on the roughing section, it undergoes fine repair on the shaping section 462. Since the deformation of the shaping section 462 is smaller, the precision of catheter tip shaping can be improved. This design not only restores the deformed catheter tip to a circular shape but also improves the efficiency and precision of catheter shaping. Furthermore, axially, the length of the roughing section 461 is less than the length of the shaping section 462.

[0040] To facilitate the installation of the orthotic rod 43, in this embodiment, as follows: Figure 2 and Figure 7 As shown, the orthopedic rod 43 includes a push-pull rod 431 and a cone head 432. The fixing part 4311 and the hemispherical positioning end 4312 are both located on the cone head 432. The cone head also includes an annular locking part 4313. The positioning end 4312 is the right end of the cone head 432. The fixing part 4311 is located on the left side of the fixing part 4311 and is fixedly connected. The locking part 4313 is located on the left side of the fixing part and is fixedly connected. One end of the return spring abuts against the locking part. The right end of the push-pull rod 431 is inserted into the return groove of the mounting sleeve 44 and threadedly connected to the left end of the cone head 432. Thus, the split-type orthopedic rod 43 can be installed on other components and then fixed, allowing for easy disassembly and replacement of components in the orthopedic device.

[0041] In this embodiment, as Figure 3 and Figure 4 As shown, a first cylinder 41 is mounted on the first mounting base 12. The output end of the first cylinder 41 is connected to the left end of the push-pull rod 431, thereby enabling the first cylinder 41 to drive the orthotic rod 43 to move in the left and right directions; as shown Figure 1-4As shown, a bracket 21 is fixedly installed on the workbench 11. A servo motor 22 is installed on the top of the bracket 21. A first pulley 23 is fixedly installed on the output end of the servo motor 22. A transmission seat 16 is fixedly installed on the workbench 11. The transmission seat 16 is located between the first mounting seat 12 and the second mounting seat. The transmission seat 16 has a cavity. A first transmission shaft is rotatably installed on the transmission seat 16. A second pulley 24 and a first gear 26 are fixedly installed on the first transmission shaft. The first gear 26 is located inside the cavity, and the second pulley 24 is located outside the cavity. The second pulley 24 and the first pulley 23 are connected by a transmission belt 25. A second transmission shaft is rotatably mounted on the transmission base 16. A second gear 27, which meshes with the first gear 26, is fixedly mounted on the second transmission shaft. The push-pull rod 431 passes through the transmission base 16. A third gear 42, which meshes with the second gear 27, is sleeved on the push-pull rod 431. The third gear 42 is located in a cavity and is splinedly connected to the push-pull rod 431. Two sliding bearings are installed in the cavity, and the third gear 42 is located between the two bearings, which clamp the push-pull rod 431, thereby fixing the position of the third gear 42. This configuration allows for more precise control of the movement and rotation of the straightening rod 43 and reduces the transmission distance, making the structure of the straightening device more compact. In other embodiments, the first pulley 23, the second pulley 24, the first gear 26, the second gear 27, and the third gear 42 can be configured as a progressively decelerating transmission path to further improve the control of the straightening rod 43.

[0042] In this embodiment, as Figure 1 , Figure 3 and Figure 4As shown, the chamfering device includes a drive shaft 33, a cutter head 34, and a fourth gear 32. A third mounting base is installed on the worktable 11, adjacent to the second mounting base. The drive shaft 33 is parallel to the straightening rod 43. The first mounting base 12 and the third mounting base support the drive shaft 33. The drive shaft 33 extends to the right and passes through the third mounting base. The cutter head 34 is sleeved and fixed to the right end of the drive shaft 33. A blade for chamfering the inner side of the guide tube is fixedly installed on the cutter head 34. The fourth gear 32 is splined to the drive shaft 33. The fourth gear meshes with the second gear 27 and drives the drive shaft 33 to rotate. This enriches the function of the shaping device and makes the power transmission structure and transmission path of the shaping device more compact. Furthermore, the fourth gear 32 is splinedly connected to the drive shaft 33. A second cylinder 31 is also mounted on the first mounting base 12. The driving end of the second cylinder 31 is connected to the drive shaft 33, allowing the second drive shaft 33 to slide on the first mounting base 12 and the third mounting base. The fourth gear 32 is mounted on the transmission base 16 in the same manner as the third gear 42. The drive shaft 33 can slide relative to the first mounting base 12 and the third mounting base. When the drive shaft 33 moves in the left and right direction, it can drive the expansion sleeve 45 mounted on the right end of the drive shaft 33 to open and fix the cutter head 34 fitted on the expansion sleeve 45.

[0043] In this embodiment, the positioning assembly includes a fourth mounting base, a fifth mounting base, a positioning rod 52, and a third cylinder 51. The fourth and fifth mounting bases are fixed on the worktable 11. The second mounting base is located between the third and fourth mounting bases, and the second, third, and fourth mounting bases are in contact with each other. The fifth mounting base is located to the left of the fourth mounting base and is in contact with the side of the transmission seat. The positioning rod 52 passes through the third and fourth mounting bases. The third cylinder 51 is mounted on the worktable 11, and the output end of the third cylinder 51 is connected to the left end of the positioning rod 52, thereby enabling the third cylinder 51 to drive the positioning rod 52 to move.

[0044] In this embodiment, as Figure 3 and Figure 4As shown, the vacuuming assembly includes a sixth mounting base, a seventh mounting base, a vacuum pipe 62, and an air nozzle 63. The sixth and seventh mounting bases are fixedly mounted on the workbench 11. The seventh mounting base 15 is located to the left of the sixth mounting base, adjacent to and fitted with the fifth mounting base. The sixth mounting base is adjacent to and fitted with the fourth mounting base. The vacuum pipe 62 passes through the sixth and seventh mounting bases 15 and is slidably connected to them. The air nozzle 63 is fixedly mounted on the left end of the vacuum pipe 62, and the end of the nozzle can be inserted into the right end of the vacuum pipe 62. Furthermore, an air intake 61 communicating with the vacuum pipe is fixedly mounted on the right end of the vacuum pipe 62, and the inner diameter of the air intake 61 is larger than the inner diameter of the vacuum pipe. Furthermore, the suction pipe 62 of the suction assembly includes a first connecting pipe and a second connecting pipe. The first connecting pipe passes through the sixth mounting base and is fixed to the air intake 61. The second connecting pipe is sleeved on the first connecting pipe and is slidably connected to the seventh mounting base. The air nozzle 63 is fixed to the left end of the second connecting pipe. A fourth cylinder is fixed on the worktable. The fourth cylinder can drive the second connecting pipe to move axially.

[0045] In this embodiment, the shaping device also includes a top cover 16, which is U-shaped with its opening facing downwards. The right side of the top cover 16 abuts against the second, third, fourth, and sixth mounting seats, while the left end of the top cover 16 abuts against the transmission seat 16, the fifth mounting seat, and the seventh mounting seat 15. The drive shaft 33, the straightening rod 43, the positioning rod 52, and the suction pipe 62 are located between the front and rear ends of the top cover 16. Thus, a relatively enclosed space is formed by the mounting seats, the transmission seat 16, and the top cover 16, making the components more stable.

[0046] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A method for shaping the end of an aerospace conduit, characterized in that: The specific steps are as follows: Step 1) Select an orthopedic sleeve (46) that matches the specifications of the catheter to be orthopedic. Step 2) Place the orthotic sleeve (46) on the expansion sleeve (45) and the orthotic rod (43); wherein the expansion sleeve (45) is placed on the orthotic rod (43), and the spherical inner wall of the orthotic sleeve (46) abuts against the spherical end of the orthotic rod (43); Step 3) Move the orthotic rod (43) laterally so that the conical fixing part (4311) on the orthotic rod (43) pushes against the inner wall of the expansion sleeve (45), causing the expansion sleeve (45) to expand outward and abut against the inner wall of the orthotic sleeve (46); wherein, during the expansion of the expansion sleeve (45), the orthotic sleeve (46) can be driven to slide on the end of the orthotic rod (43), so that the expansion sleeve (45), the orthotic rod (43) and the orthotic sleeve (46) are aligned, coaxial and fixedly connected; Step 4) Drive the orthotic rod (43) to rotate the orthotic sleeve (46) and drive the catheter (7) to move laterally, so that the deformed end of the catheter abuts against the conical outer surface of the orthotic sleeve (46) and the contact area increases continuously. Step 5) Remove the catheter (7).

2. The shaping method for the end of an aerospace conduit according to claim 1, characterized in that: One end of the expansion sleeve (45) is a multi-lobed flower end (451), and the inner hole of the flower end (451) of the expansion sleeve (45) matches the fixing part (4311) of the orthotic rod (43).

3. The shaping method for the end of an aerospace conduit according to claim 1, characterized in that: The left end of the orthotic sleeve (46) is provided with a cylindrical connecting groove (463), the expansion sleeve (45) is located in the connecting groove (463), the right end of the connecting groove (463) is provided with a spherical positioning groove (464), and the spherical end of the orthotic rod (43) is a positioning end (4312) that matches the positioning groove (464).

4. The shaping method for the end of an aerospace conduit according to claim 1, characterized in that: The orthotic rod (43) is mounted on the workbench (11), the expansion sleeve (45) is rotatably connected to the workbench (11), and a cylinder for driving the orthotic rod (43) to move laterally is mounted on the workbench (11).

5. The shaping method for the end of an aerospace conduit according to claim 1, characterized in that: The orthotic rod (43) is mounted on the workbench (11), the expansion sleeve (45) is rotatably connected to the workbench (11), and a servo motor for driving the orthotic rod (43) to rotate is mounted on the workbench (11).

6. The shaping method for the end of an aerospace conduit according to claim 1, characterized in that: The orthotic rod (43) is mounted on the workbench (11). An installation sleeve (44) is fitted on the orthotic rod (43). The installation sleeve (44) is rotatably connected to the workbench (11). The expansion sleeve (45) is fixed on the installation sleeve (44). A spring is fitted on the orthotic rod (43). The two ends of the spring abut against the fixed end of the orthotic rod (43) and the installation sleeve (44) respectively.

7. The shaping method for the end of an aerospace conduit according to claim 1, characterized in that: The orthotic rod (43) is mounted on the workbench (11), on which a chamfering assembly for chamfering is rotatably mounted.

8. The shaping method for the end of an aerospace conduit according to claim 1, characterized in that: The orthotic rod (43) is mounted on a workbench (11), which is equipped with a vacuum assembly for cleaning the duct.

9. The shaping method for the end of an aerospace conduit according to claim 1, characterized in that: The orthopedic rod (43) is mounted on the workbench (11), and a positioning component for positioning is rotatably mounted on the workbench (11).

10. A shaping device for the end of an aerospace conduit, characterized in that: The shaping device includes a worktable (11) and a shaping assembly mounted on the worktable (11). The shaping assembly includes an expansion sleeve (45), a straightening sleeve (46), and a straightening rod (43). The straightening rod (43) is mounted on the worktable (11) and is rotatable and laterally movable on the worktable (11). The shaping device is applied to a shaping method for the end of an aerospace conduit as described in any one of claims 1-9.

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