An aerospace precision elbow forming intelligent detection device and a method thereof

Abstract

The application relates to the technical field of bend detection, and discloses a precision bend forming intelligent detection device for aerospace and a use method thereof, which comprises a body, a frame connected to the body, a detection assembly connected to the bottom of the frame, a three-station indexing turntable assembly connected to the body, a gear assembly and a discharging assembly assembled on the body, wherein the detection assembly comprises a detection camera, the gear assembly is installed on the inner side of the three-station indexing turntable assembly, the discharging assembly is assembled on the three-station indexing turntable assembly, and a sorting and discharging assembly is installed in the body. The three-station indexing turntable assembly is used for realizing synchronous parallel operation of three processes of feeding, detection and discharging, the gear assembly is used for realizing automatic rotation of the bend during the revolution of the turntable, the reciprocating swing structure of the detection camera is matched, multi-angle detection of the bend is realized, the detection precision is improved, the automatic discharging assembly and the sorting and discharging assembly are integrated, and the automatic discharging of the bend after the detection is completed and the shunting of the qualified products and the unqualified products are realized.

Description

Technical Field

[0001] This invention belongs to the field of pipe bending inspection technology, specifically, it relates to an intelligent inspection device for precision pipe bending forming in aerospace and its usage method. Background Technology

[0002] Precision bent tubes for aerospace applications are core components of aircraft hydraulic, fuel, and environmental control systems. Their forming accuracy, surface quality, and dimensional tolerances directly affect the operational reliability and flight safety of these systems. With the rapid development of the aerospace industry, the demand for precision bent tubes has increased significantly, simultaneously placing increasingly higher demands on their testing accuracy, efficiency, and automation.

[0003] Currently, the inspection of bent pipes is carried out by fixed or handheld optical measuring instruments. Fixed instruments can only measure bent pipes from a fixed angle, which has a limited field of view and makes it difficult to cover the complex contour area of ​​the bent pipe. When using handheld optical measuring instruments, the operator needs to constantly adjust the angle of the measuring instrument, which is cumbersome. At the same time, the operation is affected by the individual's operating technique, observation angle and subjective judgment, resulting in poor repeatability of the test data and slow overall inspection speed.

[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 precision tube bending forming intelligent inspection device for aerospace applications includes a main body, a frame fixedly connected to the upper end of the main body, a detection component connected to the bottom of the frame, a three-station indexing turntable assembly rotatably connected to the upper end of the main body, a gear assembly and an unloading assembly mounted on the main body, the detection component arranged between the frame and the main body, the detection component including a detection camera for visual inspection, the three-station indexing turntable assembly horizontally arranged on the upper platform of the main body with three equally spaced stations, the three-station indexing turntable assembly and the detection component arranged vertically correspondingly; a gear assembly is installed inside the three-station indexing turntable assembly, an unloading assembly is slidably mounted on the three-station indexing turntable assembly, and a sorting and unloading assembly is also installed in the main body, the sorting and unloading assembly is embedded in the internal cavity of the main body, and the feeding end is connected to the unloading assembly.

[0006] In a preferred embodiment of the present invention, the detection assembly further includes a cam column, a rotating shaft, and a bracket. The cam column is fixedly connected to the bottom of the frame, and the rotating shaft is rotatably mounted between the cam column and the main body. The bracket is connected to the rotating shaft, and three detection cameras are rotatably mounted on the bracket.

[0007] In a preferred embodiment of the present invention, the outer wall of the cam column is provided with an annular curved cam groove, a movable ring is slidably sleeved on the outer wall of the cam column, three cams are assembled in the movable ring, the three cams are slidably engaged in the cam groove, and a spring is sleeved on the outer wall of the cam column, one end of the spring abutting against the movable ring and the other end abutting against the stepped surface of the cam column.

[0008] In a preferred embodiment of the present invention, a crossbar is connected to the outer wall of the moving ring, a second connecting shaft is connected to the end of the crossbar, a first connecting shaft is connected to the detection camera, a pull rod is rotatably connected between the first connecting shaft and the second connecting shaft, a motor is installed inside the main body, and the output shaft of the motor is connected to the rotating shaft.

[0009] In a preferred embodiment of the present invention, the three-station indexing turntable assembly includes a rotating disk and a storage disk. The rotating disk is rotatably mounted on the upper end of the main body and is assembled with a rotating shaft. Three storage disks are rotatably mounted on the rotating disk. An annular sealing ring is affixed between the rotating disk and the upper end face of the main body.

[0010] In a preferred embodiment of the present invention, the gear assembly includes a large gear, a rotating shaft, and a small gear. The large gear is fixedly connected to the upper end face of the main body. The large gear is movably sleeved on the outside of the rotating shaft. The rotating shaft is assembled in the storage tray. The small gear is assembled on the rotating shaft. The small gear meshes with the large gear.

[0011] In a preferred embodiment of the present invention, the unloading assembly includes a chute, a slider, an unloading plate, and a drive block. The upper surface of the main body is provided with a drive groove, the rotating disk is provided with three sets of chute, the slider is slidably installed in the chute, the upper end of the slider is connected to the unloading plate, the bottom end of the slider is connected to a connecting rod, the bottom of the connecting rod is connected to a drive block, and the drive block is slidably engaged in the drive groove.

[0012] In a preferred embodiment of the present invention, the sorting and feeding assembly includes a conveying pipe, a partition, and a sorting gate. The main body has a conveying port, and the conveying pipe is connected inside the main body. The upper end of the conveying pipe is connected to the conveying port, and the lower end of the conveying pipe is connected to a partition. The partition divides the lower end of the conveying pipe into a first pipe and a second pipe. Sorting gates are rotatably installed at the ends of both the first pipe and the second pipe. A first rotating shaft is connected to the back of the sorting gate, and a second rotating shaft is connected to the sidewalls of both the first pipe and the second pipe. A cylinder is rotatably connected between the first rotating shaft and the second rotating shaft.

[0013] In a preferred embodiment of the present invention, casters are connected to the four corners of the bottom of the main body, a display is rotatably connected to the frame, and an inspection door is hinged to the main body.

[0014] The method of using the intelligent inspection device for precision tube bending in aerospace applications includes the following steps: S1: Place the aerospace precision bent tube to be inspected on the corresponding tray of the loading station in the three-station turntable indexing mechanism; S2: After placement, start the motor to drive the rotating shaft to rotate synchronously, drive the rotating disk to rotate slowly in increments, and transfer the placement tray and the bent tube to the inspection station; S3: During the revolution of the rotating disk, the small gear meshes with the large gear to drive the storage tray and the upper curved tube to rotate slowly and adjust their posture. S4: The rotating shaft synchronously drives the detection assembly to rotate as a whole. Under the trajectory constraints of the cam column, cam groove and cam, it drives the detection camera to swing up and down, and performs intelligent visual detection of the bent pipe from multiple angles. S5: After the inspection is completed, the turntable continues to rotate in increments, transferring the bent pipe to the unloading station. The drive groove trajectory constrains the drive block to slide, driving the unloading plate to push the bent pipe on the placement tray to the conveying port. S6: The bent tube falls into the conveying pipe. Based on the detection results, the corresponding cylinder is controlled to drive the sorting gate to deflect and change direction, so that qualified and unqualified precision bent tubes are diverted and discharged through the first pipe and the second pipe respectively, completing the automatic sorting and unloading.

[0015] Compared with the prior art, the present invention has the following advantages: This invention enables the simultaneous parallel operation of three processes—loading, inspection, and unloading—through a three-station indexing turntable assembly, improving inspection efficiency. A gear assembly enables the bent tube to automatically rotate slowly as it revolves around the turntable, and in conjunction with the reciprocating oscillating structure of the inspection camera, multi-angle inspection of the bent tube is achieved, improving inspection accuracy. Furthermore, the integration of an automatic unloading assembly and a sorting assembly enables automatic unloading of the bent tube after inspection and automatic separation of qualified and unqualified products, further enhancing 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 3D diagram of an intelligent inspection device for precision pipe bending forming in aerospace applications; Figure 2 A 3D diagram of a three-station indexing turntable assembly, an inspection assembly, and an unloading assembly for a precision tube bending forming intelligent inspection device for aerospace applications; Figure 3 This is a schematic diagram of the installation of a gear assembly in a precision tube bending and forming intelligent detection device for aerospace applications. Figure 4 An exploded view of a gear assembly of a precision tube bending forming intelligent inspection device for aerospace applications; Figure 5 An exploded view of the detection component of an intelligent detection device for precision pipe bending in aerospace applications; Figure 6 This is a schematic diagram of the installation of a three-station indexing turntable assembly and an unloading assembly for an intelligent inspection device for precision pipe bending forming in aerospace applications. Figure 7 This is an assembly diagram of the unloading component of an intelligent detection device for precision tube bending in aerospace applications. Figure 8 A 3D diagram of the sorting and unloading component of an intelligent detection device for precision pipe bending forming in aerospace applications; Figure 9 This is a schematic diagram of the internal structure of the sorting and unloading component of an intelligent detection device for precision pipe bending forming in aerospace applications.

[0018] In the diagram: 1. Body; 2. Frame; 3. Cam column; 4. Rotating shaft; 5. Bracket; 6. Detection camera; 7. First connecting shaft; 8. Pull rod; 9. Second connecting shaft; 10. Crossbar; 11. Cam; 12. Moving ring; 13. Cam groove; 14. Spring; 15. Motor; 16. Rotating disk; 17. Large gear; 18. Sealing ring; 19. Storage tray; 20. Rotating shaft; 21. Small gear; 22. Slide groove; 23. Slider; 24. Unloading plate; 25. Connecting rod; 26. Drive block; 27. Drive groove; 28. Conveying port; 29. ​​Conveying pipe; 30. First pipe; 31. Second pipe; 32. Partition; 33. Sorting door; 34. First rotating shaft; 35. Cylinder; 36. Second rotating shaft; 37. Caster wheel; 38. Display; 39. Inspection door. 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] like Figures 1 to 9As shown, an intelligent inspection device for precision tube bending forming in aerospace and its usage method include a body 1, a frame 2 fixedly connected to the upper end of the body 1, an inspection component connected to the bottom of the frame 2, a three-station indexing turntable assembly rotatably connected to the upper end of the body 1, a gear assembly and an unloading assembly mounted on the body 1, the inspection component arranged between the frame 2 and the body 1, the inspection component including an inspection camera 6 for visual inspection, the three-station indexing turntable assembly horizontally arranged on the upper platform of the body 1, and three sets of stations equally divided around the circumference, the three-station indexing turntable assembly and the inspection component arranged vertically correspondingly; a gear assembly is installed inside the three-station indexing turntable assembly, an unloading assembly is slidably mounted on the three-station indexing turntable assembly, and a sorting and unloading assembly is also installed in the body 1, the sorting and unloading assembly is embedded in the internal cavity of the body 1, and the feeding end is connected to the unloading assembly. In this setup, the main body 1 and frame 2 provide the installation reference for the inspection components. The three-station indexing turntable assembly realizes the station flow of the bent pipe to be inspected. The gear assembly, in conjunction with the turntable, realizes the self-rotation and attitude adjustment of the bent pipe. The unloading assembly automatically pushes the bent pipe after completing the inspection. The sorting and unloading assembly realizes the automatic separation of qualified and unqualified products. All components cooperate with each other to complete the automated inspection operation of aerospace bent pipes.

[0021] like Figures 1 to 9 As shown, in a specific embodiment, the detection assembly also includes a cam column 3, a rotating shaft 4, and a bracket 5. The cam column 3 is fixedly connected to the bottom of the frame 2, and the rotating shaft 4 is rotatably mounted between the cam column 3 and the body 1. The bracket 5 is connected to the rotating shaft 4, and three detection cameras 6 are rotatably mounted on the bracket 5. In this configuration, the cam column 3 provides a trajectory reference for the subsequent swing transmission, and the rotating shaft 4 drives the bracket 5 to rotate synchronously, thereby driving the three detection cameras 6 to revolve around the axis of the rotating shaft 4, providing basic motion conditions for the full circumferential visual inspection of the bent pipe.

[0022] like Figures 1 to 9 As shown, further, the outer wall of the cam column 3 has an annular curved cam groove 13. A movable ring 12 is slidably sleeved on the outer wall of the cam column 3. Three cams 11 are assembled in the movable ring 12, and the three cams 11 are slidably engaged in the cam groove 13. A spring 14 is sleeved on the outer wall of the cam column 3. One end of the spring 14 abuts against the movable ring 12, and the other end abuts against the stepped surface of the cam column 3. In this configuration, when the cam 11 rotates around the cam column 3 with the movable ring 12, it drives the movable ring 12 to reciprocate up and down along the axis of the cam column 3 along the trajectory of the cam groove 13. The spring 14 continuously pushes the movable ring 12, so that the cam 11 and the inner wall of the cam groove 13 always keep in close contact, eliminating transmission gaps and ensuring the smoothness and accuracy of the movement.

[0023] like Figures 1 to 9As shown, further, a crossbar 10 is connected to the outer wall of the moving ring 12, and a second connecting shaft 9 is connected to the end of the crossbar 10. A first connecting shaft 7 is connected to the detection camera 6, and a pull rod 8 is rotatably connected between the first connecting shaft 7 and the second connecting shaft 9. A motor 15 is installed inside the main body 1, and the output shaft of the motor 15 is connected to the rotating shaft 4. In this configuration, the motor 15 drives the rotating shaft 4 to rotate through the output shaft. The up-and-down reciprocating motion of the moving ring 12 is transmitted to the second connecting shaft 9 through the crossbar 10, which in turn drives the pull rod 8 to swing up and down. The pull rod 8 then pulls the detection camera 6 to swing back and forth around its hinge point with the bracket 5 through the first connecting shaft 7, thereby realizing the automatic adjustment of the shooting angle of the detection camera 6.

[0024] like Figures 1 to 9 As shown, the three-station indexing turntable assembly further includes a rotating disk 16 and storage disks 19. The rotating disk 16 is rotatably mounted on the upper end of the main body 1 and is assembled with the rotating shaft 4. Three storage disks 19 are rotatably mounted on the rotating disk 16, and an annular sealing ring 18 is affixed between the rotating disk 16 and the upper surface of the main body 1. In this configuration, the rotating disk 16 serves as the carrier for the station rotation, driving the three storage disks 19 to rotate synchronously, realizing the sequential switching of the three stations of loading, inspection, and unloading. The annular sealing ring 18 is affixed between the rotating disk 16 and the main body 1, which can prevent dust, debris, and other impurities from entering the device and protect the transmission components from contamination.

[0025] like Figures 1 to 9 As shown, the gear assembly further includes a large gear 17, a rotating shaft 20, and a small gear 21. The large gear 17 is fixedly connected to the upper end face of the main body 1 and is movably sleeved on the outside of the rotating shaft 4. The rotating shaft 20 is assembled in the storage tray 19, and the small gear 21 is assembled on the rotating shaft 20. The small gear 21 meshes with the large gear 17. In this configuration, when the rotating disk 16 drives the storage tray 19 to revolve, the small gear 21 revolves synchronously with the storage tray 19 and meshes with the large gear 17 for transmission. This, in turn, drives the storage tray 19 to rotate around its own axis through the rotating shaft 20, enabling the bent tube placed on the storage tray 19 to rotate synchronously and slowly, achieving full circumferential detection coverage.

[0026] like Figures 1 to 9As shown, the unloading assembly further includes a chute 22, a slider 23, an unloading plate 24, and a drive block 26. A drive groove 27 is provided on the upper surface of the main body 1. Three sets of chute 22 are provided on the rotating disk 16. A slider 23 is slidably installed in the chute 22. The upper end of the slider 23 is connected to the unloading plate 24, and the bottom end of the slider 23 is connected to a connecting rod 25. The bottom of the connecting rod 25 is connected to the drive block 26, which slidably engages in the drive groove 27. In this configuration, the trajectory of the drive groove 27 guides the unloading action. When the rotating disk 16 drives the placement tray 19 to the unloading position, the drive block 26 slides outward along the trajectory of the drive groove 27. Through the connecting rod 25, it drives the slider 23 to slide outward along the chute 22, thereby driving the unloading plate 24 to move outward synchronously, pushing the curved tube on the placement tray 19 to the conveying port 28, thus achieving automatic unloading.

[0027] like Figures 1 to 9 As shown, the sorting and feeding assembly further includes a conveying pipe 29, a partition 32, and a sorting gate 33. A conveying port 28 is provided on the main body 1, and the conveying pipe 29 is connected inside the main body 1. The upper end of the conveying pipe 29 communicates with the conveying port 28, and the lower end of the conveying pipe 29 is connected to the partition 32. The partition 32 divides the lower end of the conveying pipe 29 into a first pipe 30 and a second pipe 31. Sorting gates 33 are rotatably mounted at the ends of both the first pipe 30 and the second pipe 31. A first rotating shaft 34 is connected to the back of the sorting gate 33, and a second rotating shaft 36 is connected to the side walls of both the first pipe 30 and the second pipe 31. A cylinder 35 is rotatably connected between the first rotating shaft 34 and the second rotating shaft 36. In this configuration, the partition 32 divides the conveying pipe 29 into two channels. The cylinder 35 acts as the driving source for the sorting action, driving the sorting gate 33 to rotate via the first rotating shaft 34, thus switching the flow between the first pipe 30 and the second pipe 31. Based on the detection results, the bent pipes can be guided into the corresponding collection areas, completing automatic sorting.

[0028] like Figures 1 to 9 As shown, casters 37 are connected to the four corners of the bottom of the main body 1, a display 38 is rotatably connected to the frame 2, and an inspection door 39 is hinged to the main body 1. In this configuration, the casters 37 are installed at the bottom of the main body 1 to facilitate the overall movement and on-site arrangement of the device, the display 38 can display the detection data and equipment operating status in real time, and the inspection door 39 is hinged to the side wall of the main body 1 to facilitate opening for daily maintenance and repair of the transmission components and electrical components inside the device.

[0029] This invention also discloses a method for using an intelligent inspection device for precision tube bending in aerospace applications, the steps of which are as follows: S1: Place the aerospace precision bent tube to be inspected on the loading tray 19 corresponding to the loading station in the three-station turntable indexing mechanism; S2: After placement, start motor 15 to drive rotating shaft 4 to rotate synchronously, drive rotating disk 16 to rotate slowly in increments, and transfer the placement disk 19 and the bent tube to the inspection station. S3: During the revolution of the rotating disk 16, the small gear 21 meshes with the large gear 17 to drive the storage disk 19 and the upper curved tube to rotate slowly and adjust their posture synchronously. S4: The rotating shaft 4 synchronously drives the detection assembly to rotate as a whole. Under the trajectory constraints of the cam column 3, cam groove 13 and cam 11, it drives the detection camera 6 to swing up and down, and performs multi-angle forming visual intelligent detection of the bent pipe. S5: After the inspection is completed, the rotating disk 16 continues to rotate in increments, transferring the bent pipe to the unloading station. The drive groove 27 tracks and the drive block 26 slides, driving the unloading plate 24 to push the bent pipe on the placement tray 19 to the conveying port 28. S6: The bent tube falls into the conveying pipe 29. Based on the detection result, the corresponding cylinder 35 is controlled to drive the sorting gate 33 to deflect and change direction, so that qualified and unqualified precision bent tubes are diverted and discharged through the first pipe 30 and the second pipe 31 respectively, completing the automatic sorting and unloading.

[0030] The implementation principle of the intelligent inspection device for precision bending tube forming in aerospace and its usage method in this embodiment is as follows: First, the loading process begins. The operator or robotic arm places the precision bent tube to be inspected stably on the surface of the placement tray 19 corresponding to the loading station of the three-station indexing turntable assembly. The anti-slip layer on the surface of the placement tray 19 can provide appropriate friction, which can prevent the bent tube from slipping during subsequent rotation and will not hinder the subsequent unloading action.

[0031] After the material is loaded, the bent tube to be tested is transferred to the testing station for testing by starting the motor 15 inside the main body 1. The motor 15 starts, and the output shaft of the motor 15 drives the rotating shaft 4 to rotate synchronously. The rotating shaft 4 simultaneously drives the rotating disk 16 and the bracket 5 to rotate.

[0032] Driven by the rotating shaft 4, the rotating disk 16 rotates at a preset low speed in 120° increments, causing the three evenly distributed circular trays 19 on it to revolve synchronously. This transfers the trays 19 that have just been loaded from the loading station to the corresponding inspection station above and below the inspection component. Simultaneously, it transfers the trays 19 that have completed inspection from the previous round from the inspection station to the unloading station, and the empty trays 19 that have completed unloading from the previous round are transferred back to the loading station. The operations at the three stations are carried out synchronously and in parallel. While the inspection station is inspecting a newly transferred bend, the loading station can simultaneously place the next bend to be inspected, and the unloading station can simultaneously unload and sort the previous bend. This eliminates the need to wait for all processes to be completed before proceeding to the next step, improving overall inspection efficiency.

[0033] During the revolution of the rotating disk 16 driving the storage disk 19, the small gear 21 meshes with the large gear 17. Since the large gear 17 is fixed, the small gear 21 will rotate around its own axis, and then drive the storage disk 19 and the curved tube above it to rotate synchronously and slowly through the rotating shaft 20, so that each outer surface of the curved tube can face the detection camera 6 in sequence, achieving full circumferential detection coverage.

[0034] Simultaneously, the rotating shaft 4 drives the bracket 5 and the three rotating detection cameras 6 mounted on it to rotate synchronously. As the bracket 5 drives the detection cameras 6 to revolve around the axis of the rotating shaft 4, the moving ring 12, linked to the detection cameras 6 via the pull rod 8 and the crossbar 10, also rotates synchronously around the cam column 3. The cam 11, fixedly mounted on the inner wall of the moving ring 12, slides within the annular curved cam groove 13 on the outer wall of the cam column 3. The spring 14 continuously pushes the moving ring 12, ensuring a tight fit between the cam 11 and the inner wall of the cam groove 13, eliminating movement gaps. Because the cam groove 13 has an undulating curved shape, when the moving ring 12 rotates around the cam column 3, the cam 11 will drive the moving ring 12 to reciprocate up and down along the axis of the cam column 3 along the trajectory of the cam groove 13. The up-and-down movement of the moving ring 12 is transmitted to the second connecting shaft 9 through the crossbar 10 fixedly connected to its outer wall, which in turn drives the pull rod 8 to swing up and down. The pull rod 8 then pulls the detection camera 6 to swing back and forth around the hinge point between it and the bracket 5 through the first connecting shaft 7, so that the shooting angle of the detection camera 6 can be automatically adjusted to realize multi-angle shooting of the bent pipe and complete the intelligent detection of the bent pipe forming size, surface defects and other items. The detection data will be transmitted in real time to the display 38 rotatably mounted on the frame 2 for display.

[0035] After the bent pipe at the inspection station completes all inspection items, the rotating disk 16, driven by the motor 15, rotates again by 120° increments, transferring the inspected bent pipe from the inspection station to the unloading station. Simultaneously, a new bent pipe to be inspected is transferred from the previous station to the inspection station, and the empty storage tray 19 returns to the loading station. During the rotation of the rotating disk 16, the drive block 26 slides within the drive groove 27. When the storage tray 19 rotates to the unloading station, the trajectory of the drive groove 27 at that position extends outward from the rotating disk 16. The drive block 26 then slides outward along the trajectory of the drive groove 27, thereby driving the slider 23 to slide outward along the groove 22 on the rotating disk 16 via the connecting rod 25. The unloading plate 24 moves outward synchronously, pushing the bent pipe on the surface of the storage tray 19 towards the conveying port 28 on the main body 1, ultimately pushing the bent pipe into the conveying port 28.

[0036] The bent tube falls from the conveying port 28 into the conveying pipe 29 connected to it. The control system issues a sorting command based on the previous detection results, controlling the corresponding cylinder 35 to operate. When the detection result is a qualified product, the control system controls the cylinder 35 corresponding to the first pipe 30 to retract. The output shaft of the cylinder 35 drives the sorting gate 33 of the first pipe 30 to rotate and open through the first rotating shaft 34. At the same time, the sorting gate 33 of the second pipe 31 remains closed, and the bent tube will be led out from the first pipe 30 to the qualified product collection area along the conveying pipe 29. When the detection result is a defective product, the control system controls the cylinder 35 corresponding to the second pipe 31 to retract, driving the sorting gate 33 of the second pipe 31 to open, and the sorting gate 33 of the first pipe 30 to close. The bent tube will then be led out from the second pipe 31 to the defective product collection area, completing the automatic sorting and unloading.

[0037] This process is repeated continuously, with the three workstations always operating synchronously and in parallel, achieving continuous automated inspection of aerospace-grade bent pipes. The casters 37 at the bottom of the device facilitate the movement and arrangement of the entire equipment, while the maintenance door 39 hinged to the side wall of the main body 1 facilitates daily maintenance and repair. The annular sealing ring 18 between the rotating disk 16 and the main body 1 can prevent dust, debris, and other foreign matter from entering the gear assembly, protecting the transmission components.

[0038] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent inspection device for precision tube bending forming in aerospace applications, comprising a main body (1), characterized in that, The upper end of the body (1) is fixedly connected to a frame (2), the bottom of the frame (2) is connected to a detection component, the upper end of the body (1) is rotatably connected to a three-station indexing turntable assembly, the body (1) is equipped with a gear assembly and a unloading assembly, the detection component is arranged between the frame (2) and the body (1), the detection component includes a detection camera (6) for visual inspection, the three-station indexing turntable assembly is horizontally arranged on the upper table of the body (1), and three sets of workstations are equally divided around the circumference, the three-station indexing turntable assembly and the detection component are arranged vertically and vertically respectively; a gear assembly is installed inside the three-station indexing turntable assembly, an unloading assembly is slidably mounted on the three-station indexing turntable assembly, a sorting and unloading assembly is also installed in the body (1), the sorting and unloading assembly is embedded in the internal cavity of the body (1), and the feeding end is connected to the unloading assembly.

2. The intelligent inspection device for precision tube bending forming in aerospace as described in claim 1, characterized in that, The detection assembly also includes a cam column (3), a rotating shaft (4) and a bracket (5). The bottom of the frame (2) is fixedly connected to the cam column (3). The rotating shaft (4) is rotatably installed between the cam column (3) and the body (1). The bracket (5) is connected to the rotating shaft (4). Three detection cameras (6) are rotatably installed on the bracket (5).

3. The intelligent inspection device for precision tube bending forming in aerospace as described in claim 2, characterized in that, The outer wall of the cam post (3) is provided with an annular curved cam groove (13). A movable ring (12) is slidably sleeved on the outer wall of the cam post (3). Three cams (11) are assembled in the movable ring (12). The three cams (11) are slidably fitted in the cam groove (13). A spring (14) is sleeved on the outer wall of the cam post (3). One end of the spring (14) abuts against the movable ring (12), and the other end abuts against the step surface of the cam post (3).

4. The intelligent inspection device for precision tube bending forming in aerospace as described in claim 3, characterized in that, The outer wall of the moving ring (12) is connected to a crossbar (10), the end of the crossbar (10) is connected to a second connecting shaft (9), the detection camera (6) is connected to a first connecting shaft (7), a pull rod (8) is rotatably connected between the first connecting shaft (7) and the second connecting shaft (9), a motor (15) is installed inside the body (1), and the output shaft of the motor (15) is connected to the rotating shaft (4).

5. The intelligent inspection device for precision tube bending forming in aerospace as described in claim 1, characterized in that, The three-station indexing turntable assembly includes a rotating disk (16) and a storage disk (19). The rotating disk (16) is rotatably mounted on the upper end of the body (1) and assembled with the rotating shaft (4). Three storage disks (19) are rotatably mounted on the rotating disk (16). An annular sealing ring (18) is attached between the rotating disk (16) and the upper end face of the body (1).

6. The intelligent inspection device for precision tube bending forming in aerospace as described in claim 1, characterized in that, The gear assembly includes a large gear (17), a rotating shaft (20), and a small gear (21). The large gear (17) is fixedly connected to the upper end face of the body (1). The large gear (17) is movably sleeved on the outside of the rotating shaft (4). The rotating shaft (20) is assembled in the storage tray (19). The small gear (21) is assembled on the rotating shaft (20). The small gear (21) meshes with the large gear (17).

7. The intelligent inspection device for precision tube bending forming in aerospace as described in claim 1, characterized in that, The unloading assembly includes a chute (22), a slider (23), an unloading plate (24), and a drive block (26). The upper surface of the main body (1) is provided with a drive groove (27), and the rotating disk (16) is provided with three sets of chute (22). A slider (23) is slidably installed in the chute (22). The upper end of the slider (23) is connected to the unloading plate (24). The bottom end of the slider (23) is connected to a connecting rod (25). The bottom of the connecting rod (25) is connected to the drive block (26). The drive block (26) is slidably fitted in the drive groove (27).

8. The intelligent inspection device for precision tube bending forming in aerospace as described in claim 1, characterized in that, The sorting and feeding assembly includes a conveying pipe (29), a partition (32), and a sorting gate (33). The main body (1) has a conveying port (28). The main body (1) is connected to the conveying pipe (29). The upper end of the conveying pipe (29) is connected to the conveying port (28). The end of the conveying pipe (29) is connected to the partition (32). The partition (32) divides the end of the conveying pipe (29) into a first pipe (30) and a second pipe (31). The ends of the first pipe (30) and the second pipe (31) are rotatably equipped with sorting gates (33). The back of the sorting gate (33) is connected to a first rotating shaft (34). The side walls of the first pipe (30) and the second pipe (31) are connected to second rotating shafts (36). A cylinder (35) is rotatably connected between the first rotating shaft (34) and the second rotating shaft (36).

9. The intelligent inspection device for precision tube bending forming in aerospace as described in claim 1, characterized in that, The four corners of the bottom of the main body (1) are connected to casters (37), the frame (2) is rotatably connected to a display (38), and the main body (1) is hinged to an inspection door (39).

10. A method of using an intelligent inspection device for precision tube bending in aerospace applications, characterized in that, The intelligent inspection device for precision tube bending forming in aerospace applications, as described in any one of claims 1-9, comprises the following steps for using the device: S1: Place the aerospace precision bent tube to be tested on the loading tray (19) corresponding to the loading station in the three-station turntable indexing mechanism; S2: After placement, start the motor (15) to drive the rotating shaft (4) to rotate synchronously, drive the rotating disk (16) to rotate slowly in increments, and transfer the placement tray (19) and the bent pipe to the inspection station; S3: During the revolution of the rotating disk (16), the small gear (21) meshes with the large gear (17) to drive the storage disk (19) and the upper curved tube to rotate slowly and adjust their posture. S4: The rotating shaft (4) synchronously drives the detection assembly to rotate as a whole. Under the trajectory constraints of the cam column (3), cam groove (13) and cam (11), it drives the detection camera (6) to swing up and down, and performs intelligent visual detection of the bent pipe from multiple angles. S5: After the inspection is completed, the rotating disk (16) continues to rotate in increments, and the bent pipe is transferred to the unloading station. The drive groove (27) trajectory constraint drive block (26) slides, driving the unloading plate (24) to push the bent pipe on the placement tray (19) to the conveying port (28). S6: The bent tube falls into the conveying pipe (29). Based on the detection result, the corresponding cylinder (35) is controlled to drive the sorting gate (33) to deflect and change direction, so that qualified and unqualified precision bent tubes are diverted and discharged through the first pipe (30) and the second pipe (31) respectively, and the automatic sorting and unloading is completed.

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