Aircraft engine jet pipe inclined taper hole machining device

Abstract

The invention relates to the field of aircraft part machining equipment, in particular to an aircraft engine jet pipe inclined taper hole machining device which comprises a portal frame fixed to a base, a rotary table is rotationally connected to the base through a fixed shaft, a positioning clamping mechanism used for fixing a jet pipe is arranged on the rotary table, and a motor and a hanging rod are fixed to the portal frame. A drill rod is arranged on the hanging rod, a pipe shaft and a reciprocating lead screw are rotationally connected to a fixed shaft on the portal frame, the pipe shaft is in transmission connection with the motor, the drill rod and the reciprocating lead screw, a push-pull assembly is arranged on the hanging rod, and the push-pull assembly is in transmission connection with the drill rod, the rotary table and the reciprocating lead screw. According to the aircraft engine jet pipe inclined taper hole machining device, all punching positions on a jet pipe are automatically drilled one by one, the working efficiency is greatly improved, the jet pipe is automatically clamped, fixed and loosened through the positioning and clamping mechanism, operation is easy and convenient, and time and labor are saved.

Description

Technical Field

[0001] The invention relates to the field of aircraft parts processing equipment, in particular to an aircraft engine nozzle oblique cone hole processing device. Background Art

[0002] The rear end of the aircraft engine is connected to a nozzle for discharging combustion gas, i.e., an exhaust pipe, so as to propel the aircraft forward. The rear end of the nozzle body is provided with a plurality of exhaust oblique cone holes arranged in a circle, which need to be drilled one by one during processing, so the angle usually needs to be adjusted multiple times, and the operation is inconvenient when fixing the nozzle, and the work efficiency is low. In view of this, we propose a device for processing oblique cone holes of aircraft engine nozzles. Summary of the invention

[0003] The purpose of the present invention is to provide an aircraft engine nozzle oblique cone hole processing device to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: an aircraft engine nozzle oblique cone hole processing device, including a gantry fixed on a base, a turntable is connected to the base in a fixed-axis rotation, and a positioning clamping mechanism for fixing the nozzle is arranged on the turntable, a motor and a suspension rod are fixed on the gantry, a drill rod is arranged on the suspension rod, a pipe shaft and a reciprocating screw are connected to the gantry in a fixed-axis rotation, and the pipe shaft is connected to the motor, the drill rod, and the reciprocating screw in a transmission connection, and a push-pull assembly is arranged on the suspension rod, and the push-pull assembly is connected to the drill rod, the turntable, and the reciprocating screw in a transmission connection.

[0004] Preferably, the positioning clamping mechanism includes a fixed seat plate, and a plurality of sliding rods 1 are penetrated and slidably connected to the fixed seat plate, the sliding rod 1 is vertically and fixedly connected to the upper surface of the turntable, the plurality of sliding rods 1 are arranged at equal intervals along the circumferential direction of the turntable, and the bottom surface of the fixed seat plate is connected to the upper surface of the turntable through a spring 1.

[0005] Preferably, the upper surface of the fixed seat plate is coaxially fixedly connected with a limiting convex ring, and a plurality of through holes are opened on the fixed seat plate, in which clamp arms are inserted, and the number of the plurality of clamp arms is consistent with the number of the oblique cone holes of the nozzle, a clamping block is fixed to the upper end of the clamp arm, and the lower end of the clamp arm is rotatably connected to a roller, and the lower end of the clamp arm is connected to the middle part of the bottom surface of the fixed seat plate through a tension spring, and a section of the clamp arm corresponding to the through hole is rotatably connected to the inner wall of the through hole, a frustum is fixed to the upper surface of the turntable, a cylinder is fixed on the gantry, and a pressure head is rotatably connected to the piston rod end of the cylinder, and the pressure head, the limiting convex ring, the frustum and the turntable share the same central axis.

[0006] Preferably, the push-pull assembly includes a lever and a carriage fixed on the lever. A multi-faceted rod is rotatably connected to the lever about a fixed axis. One end of the multi-faceted rod is coaxially and fixedly connected to a drill rod, and the other end is inserted and slidably connected within a pipe shaft. A sleeve is penetrated and rotatably connected to the hanging rod about a fixed axis, and the sleeve is sleeved and slidably connected on the multi-faceted rod. A guide rod is fixed on the lever, and the guide rod is penetrated and slidably connected on the hanging rod. The guide rod is arranged parallel to the pipe shaft.

[0007] Preferably, a slidable sleeve adapted to the reciprocating lead screw is sleeved and slidably connected on the reciprocating lead screw. A first pin rod is fixed on the outer side wall of the slidable sleeve. A strip-shaped through hole is formed on the carriage. The first pin rod is inserted and slidably connected on the strip-shaped through hole. A second gear is coaxially and fixedly connected to the pipe shaft. A third gear is coaxially and fixedly connected to the reciprocating lead screw. The second gear and the third gear are meshed and connected.

[0008] Preferably, a first support rod and a second support rod are fixed on the gantry, and the first support rod is located above the second support rod. A second through hole is formed on the first support rod. The lower end of the reciprocating lead screw passes through the second through hole and is rotatably connected to the second support rod about a fixed axis. A tooth column is coaxially and fixedly connected to the lower end of the reciprocating lead screw.

[0009] Preferably, a sleeve is slidably connected on the first support rod. A second pin rod is fixed on the upper end of the sleeve. The second pin rod is inserted and slidably connected on the strip-shaped through hole. A pull rod is inserted and slidably connected to the lower end of the sleeve. The upper end of the pull rod is connected to the upper inner side of the sleeve through a third spring.

[0010] Preferably, a second slide rod is fixed on the base. The second slide rod is penetrated and slidably connected on the lifting plate. The upper surface of the lifting plate is connected to the upper end of the second slide rod through a second spring. A shaft rod is rotatably connected to the upper surface of the lifting plate about a fixed axis. The upper end of the shaft rod is rotatably connected to the lower end of the pull rod. A fourth gear is coaxially and fixedly connected to the upper end of the shaft rod. A fifth gear is coaxially and fixedly connected to the lower end of the shaft rod.

[0011] Preferably, a worm gear is coaxially and fixedly connected to the bottom of the turntable. A shaft bracket is fixed on the base. A worm is rotatably connected to the shaft bracket about a fixed axis. The worm and the worm gear are meshed and connected. A first gear is coaxially and fixedly connected to one end of the worm. The first gear and the fifth gear are meshed and connected.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, the nozzle is automatically clamped and fixed and released through the positioning and clamping mechanism, and the operation is simple and convenient, time-saving and labor-saving. Moreover, starting the motor to work causes the motor to drive the pipe shaft to rotate, and the pipe shaft drives the drill rod to rotate. At the same time, the pipe shaft drives the drill rod to move downward through the push-pull assembly to drill the punching position of the nozzle. During the process that the drill rod is located above the nozzle, the turntable is driven to rotate, so that the turntable drives the nozzle to perform angle adjustment and rotation through the positioning and clamping mechanism, thereby realizing automatic drilling of each punching position on the nozzle one by one, greatly improving the work efficiency. Description of the Drawings

[0013] Figure 1 Schematic diagram of the overall assembly cross-section structure of the present invention Figure 1 ; Figure 2 Schematic diagram of the overall assembly cross-section structure of the present invention Figure 1 ; Figure 3 Schematic diagram of the overall assembly cross-section structure of the present invention Figure 1 ; Figure 4 Schematic diagram of the overall assembly cross-section structure of the present invention Figure 1 ; Figure 5 is Figure 1 the enlarged structure schematic diagram at position A in Figure 6 Top view of the corresponding mating structure between the clamping block and the upper opening position of the nozzle in the present invention

[0014] In the figure: 1, base; 2, gantry; 3, cylinder; 4, pressure head; 5, turntable; 6, worm gear; 7, shaft bracket; 8, worm; 9, gear one; 10, frustum; 11, slide bar one; 12, spring one; 13, fixed seat plate; 14, limiting convex ring; 15, through hole one; 16, clamping arm; 17, clamping block; 18, roller; 19, suspension rod; 20, motor; 21, lever; 22, guide rod; 23, pipe shaft; 24, gear two; 25, drill rod; 26, reciprocating lead screw; 27, gear three; 28, sliding sleeve; 29, pin rod one; 30, sliding frame; 31, strip-shaped through hole; 32, support rod one; 33, support rod two; 34, through hole two; 35, tooth column; 36, sleeve; 37, pin rod two; 38, pull rod; 39, gear four; 40, shaft rod; 41, lifting plate; 42, slide bar two; 43, spring two; 44, multi-faceted rod; 45, shaft sleeve; 46, gear five; 47, spring three; 48, tension spring. Specific embodiments

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] Please refer to Figures 1 to 6The present invention provides a technical solution: an aircraft engine nozzle oblique cone hole processing device, comprising a gantry 2 fixed on a base 1, a turntable 5 is rotatably connected to the base 1, and a positioning clamping mechanism for fixing the nozzle is arranged on the turntable 5, a motor 20 and a suspension rod 19 are fixed on the gantry 2, a drill rod 25 is arranged on the suspension rod 19, a pipe shaft 23 and a reciprocating screw rod 26 are rotatably connected to the gantry 2, and the pipe shaft 23 is transmission-connected to the motor 20, the drill rod 25, and the reciprocating screw rod 26, and a push-pull assembly is arranged on the suspension rod 19, and the push-pull assembly is transmission-connected to the drill rod 25, the turntable 5, and the reciprocating screw rod 26 respectively.

[0017] In this embodiment, the positioning and clamping mechanism includes a fixed seat plate 13, and a plurality of slide bars 11 are passed through and slidably connected to the fixed seat plate 13. The slide bars 11 are vertically and fixedly connected to the upper surface of the turntable 5. The plurality of slide bars 11 are arranged at equal intervals along the circumferential direction of the turntable 5. The bottom surface of the fixed seat plate 13 is connected to the upper surface of the turntable 5 through a spring 12. The upper surface of the fixed seat plate 13 is coaxially fixedly connected to a limited position convex ring 14. The fixed seat plate 13 is provided with a plurality of through holes 15. Clamp arms 16 are inserted into the through holes 15. The plurality of clamp arms 16 are consistent in number with the number of the oblique cone holes of the nozzle. A clamping block 17 is fixed to the upper end of the clamping arm 16, and a roller 18 is rotatably connected to the lower end of the clamping arm 16, and the lower end of the clamping arm 16 is connected to the middle part of the bottom surface of the fixed seat plate 13 through a tension spring 48. The clamping arm 16 is located at a section of the corresponding through hole 15 and is rotatably connected to the inner wall of the through hole 15. A frustum 10 is fixed to the upper surface of the turntable 5, and each roller 18 can roll on the conical surface of the frustum 10. A cylinder 3 is fixed to the gantry 2, and a pressure head 4 is rotatably connected to the piston rod end of the cylinder 3. The pressure head 4, the limiting convex ring 14, the frustum 10 and the turntable 5 share the same central axis.

[0018] In this embodiment, the push-pull assembly includes a lever 21 and a slide 30 fixed on the lever 21, a polygonal rod 44 is connected to the lever 21 for fixed-axis rotation, one end of the polygonal rod 44 is coaxially fixedly connected to the drill rod 25, and the other end is inserted and slidably connected to the pipe shaft 23, the suspension rod 19 passes through and is fixedly rotatably connected to the shaft sleeve 45, and the shaft sleeve 45 is sleeved and slidably connected to the polygonal rod 44, the lever 21 is fixed with a guide rod 22, and the guide rod 22 passes through and is slidably connected to the suspension rod 19. On the rod 19, the guide rod 22 is arranged parallel to the tube axis 23, the reciprocating screw 26 is sleeved and slidably connected with a matching sliding sleeve 28, a pin rod 29 is fixed on the outer wall of the sliding sleeve 28, a strip through hole 31 is opened on the slide 30, the pin rod 29 is inserted and slidably connected to the strip through hole 31, a gear 24 is coaxially fixedly connected to the tube axis 23, a gear 3 27 is coaxially fixedly connected to the reciprocating screw 26, and the gear 24 is meshingly connected with the gear 3 27.

[0019] In this embodiment, a first support rod 32 and a second support rod 33 are fixed on the gantry 2, and the first support rod 32 is located above the second support rod 33. A second through hole 34 is formed in the first support rod 32. The lower end of the reciprocating lead screw 26 passes through the second through hole 34 and is fixedly connected to the second support rod 33 in a fixed-axis rotation manner. A tooth column 35 is coaxially and fixedly connected to the lower end of the reciprocating lead screw 26. A sleeve 36 is slidably connected to the first support rod 32. A second pin rod 37 is fixed to the upper end of the sleeve 36. The second pin rod 37 is inserted and slidably connected to the strip-shaped through hole 31. A pull rod 38 is inserted and slidably connected to the lower end of the sleeve 36. The upper end of the pull rod 38 is connected to the upper inner side of the sleeve 36 through a third spring 47. A second slide rod 42 is fixed to the base 1. The second slide rod 42 passes through and is slidably connected to the lifting plate 41. The upper surface of the lifting plate 41 is connected to the upper end of the second slide rod 42 through a second spring 43. A shaft rod 40 is rotatably connected to the upper surface of the lifting plate 41 in a fixed-axis rotation manner. The upper end of the shaft rod 40 is rotatably connected to the lower end of the pull rod 38 in a fixed-axis rotation manner. A fourth gear 39 is coaxially and fixedly connected to the upper end of the shaft rod 40. A fifth gear 46 is coaxially and fixedly connected to the lower end of the shaft rod 40. A worm gear 6 is coaxially and fixedly connected to the bottom of the turntable 5. A shaft bracket 7 is fixed to the base 1. A worm 8 is rotatably connected to the shaft bracket 7 in a fixed-axis rotation manner. The worm 8 is meshed with the worm gear 6. A first gear 9 is coaxially and fixedly connected to one end of the worm 8. The first gear 9 is meshed with the fifth gear 46.

[0020] Working principle and advantages of the present invention: When the processing device for the inclined conical hole of the aircraft engine nozzle is in use, the working process is as follows: As Figures 1 to 6 shown, the nozzle to be drilled is placed in the limit convex ring 14 on the fixed seat plate 13, and the drilling positions on the nozzle are placed corresponding to the clamping blocks 17 as much as possible. Then, the cylinder 3 is started, so that the cylinder 3 extends the piston rod and drives the pressing head 4 to move downward, so that the pressing head 4 presses the upper end of the nozzle tightly and applies a downward pressure to the nozzle, so that the nozzle drives the lifting plate 41 to move downward, and then the lifting plate 41 compresses the first spring 12, and synchronously drives each clamping arm 16 to move downward. As the clamping arm 16 moves downward, the conical surface of the frustum 10 applies an outward thrust to the roller 18, and the lower end of the clamping arm 16 stretches the tension spring 48, so that the tension spring 48 obtains a restoring force, so that the clamping arm 16 drives the clamping block 17 at its upper end to approach and clamp the corresponding drilling position on the nozzle, and then the cylinder 3 is stopped and maintained, so that the nozzle can be clamped and fixed very conveniently, saving time and effort.

[0021] After the nozzle is clamped and fixed, the drill pipe 25 is at the highest position at this time, and the extension line of the drill pipe 25 is located in the middle of the corresponding two punching positions. Under the action of the third spring 47 and the second spring 43, the fifth gear 46 is meshed and connected with the first gear 9. The motor 20 is started to work, so that the motor 20 drives the pipe shaft 23 to rotate, so that the pipe shaft 23 drives the drill pipe 25 to rotate through the multi-faceted rod 44. While the pipe shaft 23 rotates, it drives the reciprocating lead screw 26 to rotate through the second gear 24 and the third gear 27, so that the reciprocating lead screw 26 synchronously drives the tooth column 35 to rotate. While the reciprocating lead screw 26 rotates, it drives the sliding sleeve 28 to move up and down reciprocally. While the sliding sleeve 28 moves down, it drives the sliding frame 30 to move down through the first pin rod 29, so that the sliding frame 30 synchronously drives the shifting rod 21 to move down, so that the shifting rod 21 drives the multi-faceted rod 44 and the drill pipe 25 to move down, and the tooth column 35 drives the shaft rod 40 to rotate through the fourth gear 39, so that the shaft rod 40 drives the fifth gear 46 to drive the first gear 9 to rotate, so that the first gear 9 drives the worm 8 to rotate, so that the worm 8 drives the worm wheel 6 to rotate. While the worm wheel 6 rotates, it drives the turntable 5 and the fixed seat plate 13 thereon to rotate, so that the fixed seat plate 13 drives the nozzle to rotate. As the sliding frame 30 moves down, the sliding frame 30 drives the sleeve 36 to move down through the second pin rod 37, so that the pulling force of the third spring 47 on the pull rod 38 gradually decreases. When the drill pipe 25 is at a height position 1.5 cm above the nozzle, at this time, the turntable 5 just drives the punching position on the nozzle to rotate to the extension line of the drill pipe 25, and at this time, under the action of the second spring 43, the lifting plate 41 drives the shaft rod 40 to move down, and the fifth gear 46 is disengaged from the first gear 9 and does not contact. At this time, the rotation of the worm 8 is stopped, and the self-locking characteristic of the worm wheel 6 and the worm 8 is used to keep the turntable 5 stationary, ensuring the accuracy when the drill pipe 25 drills. As the sliding frame 30 continues to move down, the shifting rod 21 drives the drill pipe 25 to drill the punching position through the multi-faceted rod 44. When the drilling is completed, at this time, the sliding sleeve 28 is at the lowest position on the reciprocating lead screw 26 and is just about to turn and slide up, so that the first pin rod 29 drives the sliding frame 30 to move up. While the sliding frame 30 moves up, it drives the shifting rod 21 to move up, so that the shifting rod 21 drives the drill pipe 25 to move up through the multi-faceted rod 44. While the sliding frame 30 moves up, it drives the sleeve 36 to move up through the second pin rod 37, so that the third spring 47 gradually exerts a pulling force on the pull rod 38. When the drill pipe 25 moves up to 1.When at the 5 cm height position, under the action of the third spring 47 at this time, the pull rod 38 drives the shaft rod 40 to move upward, and the shaft rod 40 drives the fifth gear 46 to just engage with the first gear 9. At this time, the fifth gear 46 drives the worm 8 to rotate through the first gear 9, so that the worm 8 drives the worm wheel 6 and the turntable 5 to rotate, thereby driving the fixed seat plate 13 and the nozzle thereon to rotate. When the sliding sleeve 28 drives the sliding frame 30 to move to the highest position, the sliding sleeve 28 turns and moves downward again, so that the sliding frame 30 drives the lever 21 to move downward again, and the lever 21 drives the drill rod 25 to move downward again through the multi-faceted rod 44. When the drill rod 25 moves downward to the 1.5 cm height position above the nozzle, at this time, the turntable 5 just drives the next punching position on the nozzle to rotate to the extension line of the drill rod 25, and at this time, under the action of the second spring 43, the lifting plate 41 drives the shaft rod 40 to move downward, and the fifth gear 46 is disengaged from the first gear 9 and does not contact. Repeating the operation according to the above process, the drill rod 25 automatically punches the punching positions on the nozzle one by one, and realizes automatic angle adjustment and indexing, greatly improving the working efficiency.

[0022] After all the punching positions on the nozzle are completed, stop the motor 20 from working, start the cylinder 3 to work and contract the piston rod, so that the piston rod drives the pressure head 4 to move upward and reset. Thus, under the restoring force of the first spring 12, the fixed seat plate 13 moves upward. While the fixed seat plate 13 moves upward, it synchronously drives each clamping arm 16 to move upward, and under the restoring force of the tension spring 48, the lower ends of each clamping arm 16 drive the rollers 18 to approach each other, so that the upper ends of the clamping arms 16 drive the clamping blocks 17 away from the processed nozzle, and then it can be taken off from the fixed seat plate 13, and the operation is simple and convenient.

[0023] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0024] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An aircraft engine nozzle oblique cone hole processing device, comprising a gantry (2) fixed on a base (1), characterized in that: A turntable (5) is rotatably connected to the base (1), and a positioning clamping mechanism for fixing the nozzle is provided on the turntable (5). A motor (20) and a suspension rod (19) are fixed to the gantry (2), and a drill rod (25) is provided on the suspension rod (19). A pipe shaft (23) and a reciprocating screw rod (26) are rotatably connected to the gantry (2), and the pipe shaft (23) is transmission-connected to the motor (20), the drill rod (25), and the reciprocating screw rod (26). A push-pull assembly is provided on the suspension rod (19), and the push-pull assembly is transmission-connected to the drill rod (25), the turntable (5), and the reciprocating screw rod (26), respectively.

2. The device for machining an oblique cone hole of an aircraft engine nozzle according to claim 1, characterized in that: The positioning clamping mechanism comprises a fixed seat plate (13), and a plurality of sliding rods (11) are passed through and slidably connected to the fixed seat plate (13), and the sliding rods (11) are vertically and fixedly connected to the upper surface of the turntable (5), and the plurality of sliding rods (11) are arranged at equal intervals along the circumference of the turntable (5), and the bottom surface of the fixed seat plate (13) is connected to the upper surface of the turntable (5) via a spring (12).

3. The aircraft engine nozzle oblique cone hole processing device according to claim 2, characterized in that: The upper surface of the fixed seat plate (13) is coaxially fixedly connected to a limiting convex ring (14); the fixed seat plate (13) is provided with a plurality of through holes (15); a clamping arm (16) is inserted into each of the through holes (15); the number of the plurality of clamping arms (16) is the same as the number of the oblique cone holes of the nozzle; a clamping block (17) is fixed to the upper end of the clamping arm (16); a roller (18) is rotatably connected to the lower end of the clamping arm (16); and the lower end of the clamping arm (16) is connected to the outer surface of the nozzle through a tension spring (48). The middle part of the bottom surface of the fixed seat plate (13) is connected, the clamp arm (16) is located at a section corresponding to the through hole (15) and is rotatably connected to the inner wall of the through hole (15), a frustum (10) is fixed on the upper surface of the turntable (5), a cylinder (3) is fixed on the gantry (2), and a pressure head (4) is rotatably connected to the piston rod end of the cylinder (3), and the pressure head (4), the limiting convex ring (14), the frustum (10) and the turntable (5) share the same central axis.

4. The aircraft engine nozzle oblique cone hole processing device according to claim 1, characterized in that: The push-pull assembly comprises a lever (21) and a slide (30) fixed on the lever (21); a polygonal rod (44) is rotatably connected to the lever (21); one end of the polygonal rod (44) is coaxially fixedly connected to a drill rod (25); the other end is inserted and slidably connected to the pipe shaft (23); a shaft sleeve (45) passes through and is rotatably connected to the suspension rod (19); the shaft sleeve (45) is sleeved and slidably connected to the polygonal rod (44); a guide rod (22) is fixed on the lever (21); the guide rod (22) passes through and is slidably connected to the suspension rod (19); the guide rod (22) is arranged parallel to the pipe shaft (23).

5. The aircraft engine nozzle oblique cone hole processing device according to claim 4, characterized in that: A matching sliding sleeve (28) is sleeved on and slidably connected to the reciprocating screw rod (26); a pin rod 1 (29) is fixed on the outer wall of the sliding sleeve (28); a strip-shaped through hole (31) is provided on the slide frame (30); the pin rod 1 (29) is plugged into and slidably connected to the strip-shaped through hole (31); a gear 2 (24) is coaxially fixedly connected to the tube shaft (23); a gear 3 (27) is coaxially fixedly connected to the reciprocating screw rod (26); and the gear 2 (24) is meshingly connected to the gear 3 (27).

6. The device for machining an oblique tapered hole of an aircraft engine nozzle according to claim 5, characterized in that: A support rod 1 (32) and a support rod 2 (33) are fixed on the gantry (2), and the support rod 1 (32) is located above the support rod 2 (33). A through hole 2 (34) is provided on the support rod 1 (32), and the lower end of the reciprocating screw rod (26) passes through the through hole 2 (34) and is rotatably connected to the support rod 2 (33). The lower end of the reciprocating screw rod (26) is coaxially fixedly connected to a tooth column (35).

7. The device for machining an oblique tapered hole of an aircraft engine nozzle according to claim 6, characterized in that: The support rod 1 (32) is slidably connected to a sleeve (36), the upper end of the sleeve (36) is fixed with a pin rod 2 (37), the pin rod 2 (37) is plugged and slidably connected to the strip-shaped through hole (31), the lower end of the sleeve (36) is plugged and slidably connected to a pull rod (38), and the upper end of the pull rod (38) is connected to the inner upper end of the sleeve (36) via a spring 3 (47).

8. The device for machining an oblique tapered hole of an aircraft engine nozzle according to claim 7, characterized in that: A second slide bar (42) is fixed on the base (1), and the second slide bar (42) passes through and is slidably connected to the lifting plate (41). The upper surface of the lifting plate (41) is connected to the upper end of the second slide bar (42) via a second spring (43). The upper surface of the lifting plate (41) is fixedly rotatably connected to a shaft rod (40), and the upper end of the shaft rod (40) is fixedly rotatably connected to the lower end of the pull rod (38). The upper end of the shaft rod (40) is coaxially fixedly connected to a gear four (39), and the lower end of the shaft rod (40) is coaxially fixedly connected to a gear five (46).

9. The aircraft engine nozzle oblique cone hole machining device according to claim 8, characterized in that: The bottom of the turntable (5) is coaxially fixedly connected to a worm wheel (6), a shaft frame (7) is fixed on the base (1), and a worm (8) is fixedly rotatably connected to the shaft frame (7), and the worm (8) is meshingly connected to the worm wheel (6), and one end of the worm (8) is coaxially fixedly connected to a gear one (9), and the gear one (9) is meshingly connected to a gear five (46).

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