Intelligent turning device for spherical surface of large mixed-flow pump rotor body

Abstract

The invention discloses an intelligent turning device for a spherical surface of a large mixed-flow pump rotor body, and relates to the technical field of turning of the mixed-flow pump rotor body, the intelligent turning device comprises a main shaft and an ejector pin assembly, and further comprises a chuck assembly; the port positioning assembly comprises a first limiting assembly located at the first port of the hub body, a second limiting assembly located at the second port of the hub body and a butt joint assembly; through the arrangement of the first limiting assembly and the second limiting assembly, positioning of a first port and a second port of the hub body is achieved, the hub body and the main shaft are located on the same axis through supporting of the center shaft, the butt joint assembly and the centering clamping assembly, and the hub body and the main shaft are located on the same axis through matching of a conical hole in a plug-in plug and an ejector pin assembly. And a thimble attachment point is provided for the thimble assembly to support the hub body, so that the thimble assembly can conveniently support the hub body, the coaxial stable rotation of the hub body and the main shaft can be ensured, and the accuracy of spherical turning of the hub body can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of turning machining of a mixed-flow pump rotor body, and particularly to an intelligent turning machining device for the spherical surface of a large mixed-flow pump rotor body. Background Art

[0002] The large mixed-flow pump adopts a spherical hub design, specifically an adjustable vane type hub body, and a hydraulic adjustment mechanism is integrated inside the hub body to support the dynamic adjustment of the vane angle.

[0003] The spherical surface of the adjustable vane type hub body needs to be used as a precise positioning base surface for the installation of the vane pivot. After turning, the geometric consistency of multiple vane mounting grooves can be ensured. However, both ends of the hub body are open, which is not convenient for mating and docking with the center drill assembly during the turning positioning process. During the turning machining process, it increases the difficulty of coaxial rotation drive between the hub body and the main shaft, thereby affecting the accuracy of turning machining.

[0004] Based on this, the present invention designs an intelligent turning machining device for the spherical surface of a large mixed-flow pump rotor body to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent turning machining device for the spherical surface of a large mixed-flow pump rotor body to solve the problem that both ends of the hub body are open as mentioned in the above background art, which is not convenient for mating and docking with the center drill assembly during the turning positioning process. During the turning machining process, it increases the difficulty of coaxial rotation drive between the hub body and the main shaft, thereby affecting the accuracy of turning machining.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An intelligent turning machining device for the spherical surface of a large mixed-flow pump rotor body, including a main shaft and a center drill assembly, and further including: A chuck assembly, the chuck assembly includes a chuck body and three movable jaws, and the three movable jaws are used for clamping and positioning the outer edge of the first port of the hub body, and the chuck body is fixedly installed on the end face of the main shaft; A port positioning assembly, the port positioning assembly includes a first limiting assembly located at the first port of the hub body, a second limiting assembly located at the second port of the hub body, and a docking assembly; The first limiting assembly includes a circular limiting plate, the circular limiting plate is fixedly connected to the end face of the chuck body, and a central shaft is fixedly connected to the end face of the circular limiting plate; The second limiting assembly includes a plug, a centering clamping assembly is arranged at the inner end of the plug, the centering clamping assembly is used for centering and supporting the plug inside the second port of the hub body, a tapered hole is opened on the outer end face of the plug, and the docking assembly is arranged between the plug and the central shaft, and the docking assembly is used for docking the plug with the central shaft.

[0007] As a technical solution of the present invention, the docking component includes a docking plug and a docking port. The docking plug is fixedly connected to the end face of the central shaft, the docking port is opened at the center of the end face of the plug-in plug, and the docking plug is inserted into the docking port.

[0008] As a technical solution of the present invention, the docking component further includes a first sleeve and a second sleeve. The first sleeve is fixedly connected to the end face of the plug-in plug, the second sleeve is fixedly sleeved on the surface of the central shaft, a first thread is provided on the outer surface of the first sleeve, a second thread is provided on the inner wall of the second sleeve, and the second sleeve is threadedly sleeved on the surface of the first sleeve.

[0009] As a technical solution of the present invention, the centering clamping component includes three plug-in slots and an annular slot. The three plug-in slots are opened on the edge of the plug-in plug and are annularly arrayed with the plug-in plug as a reference. Inner clamping jaws are slidably arranged in the three plug-in slots. The inner end of the inner clamping jaw is fixedly connected with a wedge block, and a first support spring is fixedly connected between the wedge block and the inner wall of the plug-in slot; The annular slot is opened on the end face of the plug-in plug. The annular slot communicates with the three plug-in slots, and an annular body is slidably arranged in the annular slot. The annular body contacts the inclined surfaces of the three wedge blocks.

[0010] As a technical solution of the present invention, three elastic support members are arranged between the annular body and the annular slot. The elastic support members include three connection ports. The three connection ports are opened on the end face of the annular body. Three docking rods are inserted into the annular body. After the three docking rods respectively pass through the three connection ports, they are threadedly docked with the inner wall of the annular slot. Second support springs are arranged in the three connection ports, and the end of the second support spring is fixedly connected with the inner wall of the connection port.

[0011] As a technical solution of the present invention, three threaded holes are opened on the inner wall of the annular slot, and the three threaded holes are threadedly connected with the ends of the three docking rods.

[0012] As a technical solution of the present invention, an annular limiting body is fixedly connected to the surface of the plug-in plug, and the annular limiting body contacts the port edge of the second port of the hub body.

[0013] As a technical solution of the present invention, an annular knob is fixedly connected to the end of the plug-in plug away from the central shaft, and the annular knob has an inner ring surface and an outer flange surface.

[0014] As a technical solution of the present invention, the thimble assembly includes a moving seat, a support shaft is fixedly installed on the moving seat, a thimble body is fixedly connected to the end of the support shaft, the thimble body is butted in a conical hole, and an ultrasonic ranging sensor is fixedly connected to the edge of the end of the support shaft. The ultrasonic ranging sensor is used to measure the distance between the ultrasonic ranging sensor and the inner ring surface of the annular knob. As a technical solution of the present invention, it further includes a driving seat, a first motor is fixedly installed on the driving seat, the output shaft of the first motor is fixedly connected to the end of the main shaft, and the main shaft is rotatably connected to the driving seat.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. Through the first limiting component and the second limiting component, the positioning of the first port and the second port of the hub body is realized, and the hub body is clamped between the circular limiting plate and the plug. With the clamping of the three movable claws, the synchronism of the rotation of the hub body and the main shaft is ensured. And through the support of the central shaft, the docking component and the centering clamping component, the hub body and the main shaft are on the same axis. Through the cooperation of the conical hole on the plug and the thimble assembly, a thimble attachment point is provided for the thimble assembly to support the hub body, which is convenient for the thimble assembly to support the hub body, and thus is beneficial to ensuring the coaxial and stable rotation of the hub body and the main shaft, and further beneficial to ensuring the accuracy of the spherical turning processing of the hub body.

[0016] 2. Through the insertion of the docking plug into the docking port, the plug and the central shaft are coaxially arranged, and thus it is ensured that the plug and the main shaft are on the same axis, providing favorable conditions for the later coaxial positioning of the hub body.

[0017] 3. During the process of the first sleeve being threadedly connected inside the second sleeve, the second sleeve will squeeze the annular body, and the annular body will squeeze the inclined surfaces of the three wedge blocks. The wedge blocks move in the insertion slot under the extrusion, and the wedge blocks synchronously drive the inner claws to move until the three inner claws clamp the inner wall of the second port of the hub body. While clamping the second port of the hub body, the insertion slot is centered and positioned at the center position inside the second port of the hub body, which is beneficial to ensuring that the hub body, the plug, the central shaft and the main shaft are on the same axis, providing favorable conditions for the later turning, and beneficial to ensuring the accurate turning of the spherical surface of the hub body.

[0018] 4. By the relative arrangement of the annular limiting body and the circular limiting plate, after the plug and the central shaft are docked, the hub body is clamped between the annular limiting body and the circular limiting plate. Description of the Drawings

[0019] Figure 1 It is the first overall structural schematic diagram of the present invention; Figure 2 isFigure 1 Enlarged view of part A; Figure 3 Structural sectional view of the second limiting component and the hub body of the present invention; Figure 4 is Figure 3 Enlarged view of part B; Figure 5 Structural sectional view of the chuck assembly and the first limiting component of the present invention; Figure 6 is Figure 5 Enlarged view of part C; Figure 7 Structural schematic diagram of the drive seat of the present invention; Figure 8 Structural schematic diagram of the annular body of the present invention; Figure 9 Structural schematic diagram of the annular body and the inner clamping jaw of the present invention.

[0020] In the attached drawings: main shaft 1, chuck body 2, movable chuck 3, hub body 4, first port 401, second port 402, circular limiting plate 5, central shaft 6, plug 7, tapered hole 8, docking plug 9, docking port 10, first sleeve body 11, first thread 1101, second sleeve body 12, second thread 1201, plugging groove 13, annular groove 14, inner clamping jaw 15, wedge block 16, first support spring 17, annular body 18, connection port 19, docking rod 20, second support spring 21, threaded hole 22, annular limiting body 23, annular knob 24, inner ring surface 2401, outer flange surface 2402, moving seat 25, support shaft 26, thimble body 27, ultrasonic distance measuring sensor 28, support rail 29, second motor 30, threaded rod 31, drive seat 32, first motor 33. Specific embodiments

[0021] Please refer to Figures 1 to 9 , the present invention provides a technical solution: a large-scale mixed-flow pump rotor body spherical intelligent turning processing device, including a main shaft 1 and a thimble assembly, and further including: A chuck assembly, the chuck assembly includes a chuck body 2 and three movable chucks 3, and the three movable chucks 3 are used for clamping and positioning the outer edge of the first port 401 of the hub body 4, and the chuck body 2 is fixedly installed on the end face of the main shaft 1; A port positioning assembly, the port positioning assembly includes a first limiting component located at the first port 401 of the hub body 4, a second limiting component located at the second port 402 of the hub body 4, and a docking component; The first limiting component includes a circular limiting plate 5, the circular limiting plate 5 is fixedly connected to the end face of the chuck body 2, and a central shaft 6 is fixedly connected to the end face of the circular limiting plate 5; The second limiting assembly includes a plug 7, the inner end of which is provided with a center clamping assembly, which is used to center the plug 7 in the second port 402 of the hub body 4, and the outer end surface of the plug 7 is provided with a tapered hole 8. The docking assembly is arranged between the plug 7 and the center axis 6, and the docking assembly is used to dock the plug 7 with the center axis 6.

[0022] Specifically, three movable claws 3 are movably plugged into the end surface of the chuck body 2 and driven by a claw driving assembly disposed on the chuck body 2. The claw driving assembly is a prior art and will not be described in detail. It should be understood that the specific implementation method is as follows: Step 1: The movable claws 3 are brought closer to each other to form a limiting space, and the outer edge of the first port 401 of the hub body 4 is limited; Step 2: plug the plug 7 into the second port 402 of the hub body 4, and coaxially dock the plug 7 with the central axis 6 through the docking assembly. During the process of coaxially docking the plug 7 with the central axis 6 by the docking assembly, the centering clamping assembly clamps the inner wall of the second port 402, so that the plug 7 is centered inside the second port 402; Step three, use the ejector assembly to push up the tapered hole 8 of the plug 7 until the first port 401 of the hub body 4 is close to the circular limit plate 5, and the outer edge of the first port 401 of the hub body 4 is clamped by three movable claws 3.

[0023] Based on the above principle, it can be known that the first port 401 and the second port 402 of the hub body 4 are positioned through the first limit assembly and the second limit assembly, and the hub body 4 is clamped between the circular limit plate 5 and the plug 7, and the three movable claws 3 are used to clamp the hub body 4 to ensure the synchronization of the rotation of the main shaft 1. Through the support of the central axis 6, the docking assembly and the centering clamping assembly, the hub body 4 and the main shaft 1 are on the same axis, which is beneficial to ensure the coaxial rotation of the hub body 4 and the main shaft 1, and thus to ensure the accuracy of the spherical turning of the hub body 4.

[0024] like Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, in one embodiment, the docking assembly includes a docking plug 9 and a docking port 10, the docking plug 9 is fixedly connected to the end face of the central axis 6, the docking port 10 is opened at the center of the end face of the plug 7, and the docking plug 9 is plugged into the docking port 10. It should be understood that by plugging the docking plug 9 into the docking port 10, the plug 7 is coaxially arranged with the central axis 6, thereby ensuring that the plug 7 and the main shaft 1 are on the same axis, providing favorable conditions for coaxial positioning of the hub body 4 in the later stage.

[0025] As Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 shown, in one embodiment, the docking component further includes a first sleeve body 11 and a second sleeve body 12. The first sleeve body 11 is fixedly connected to the end face of the plug 7, and the second sleeve body 12 is fixedly sleeved on the surface of the central shaft 6. A first thread 1101 is provided on the outer surface of the first sleeve body 11, and a second thread 1201 is provided on the inner wall of the second sleeve body 12. The second sleeve body 12 is threadedly sleeved on the surface of the first sleeve body 11. It should be understood that after the docking plug 9 is docked with the docking port 10, when the plug 7 is rotated, the plug 7 will drive the first sleeve body 11 to rotate at the port of the second sleeve body 12. Under the thread docking of the first thread 1101 and the second thread 1201, the first sleeve body 11 is threadedly connected inside the second sleeve body 12 to achieve thread docking, and then the plug 7 and the central shaft 6 are stably docked. During the process of thread docking, the docking of the docking plug 9 with the docking port 10 provides favorable conditions for the thread docking of the first sleeve body 11 and the second sleeve body 12.

[0026] As Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Figure 9 shown, in one embodiment, the centering clamping component includes three plug slots 13 and an annular slot 14. The three plug slots 13 are opened on the edge of the plug 7 and are distributed in a circular array with the plug 7 as a reference. Inner clamping jaws 15 are slidably arranged in the three plug slots 13. A wedge block 16 is fixedly connected to the inner end of the inner clamping jaw 15, and a first support spring 17 is fixedly connected between the wedge block 16 and the inner wall of the plug slot 13; The annular slot 14 is opened on the end face of the plug 7. The annular slot 14 communicates with the three plug slots 13. An annular body 18 is slidably arranged in the annular slot 14, and the annular body 18 contacts the inclined surfaces of the three wedge blocks 16. It should be understood that during the process of the first sleeve body 11 being threadedly connected inside the second sleeve body 12, the second sleeve body 12 will squeeze the annular body 18, and the annular body 18 will squeeze the inclined surfaces of the three wedge blocks 16. The wedge blocks 16 move in the plug slots 13 under the extrusion, and the wedge blocks 16 synchronously drive the inner clamping jaws 15 to move until the inner walls of the second ports 402 of the hub body 4 are clamped by the three inner clamping jaws 15. While clamping the second ports 402 of the hub body 4, the plug slots 13 are centered and positioned at the central position inside the second ports 402 of the hub body 4, which is conducive to ensuring that the hub body 4, the plug 7, the central shaft 6, and the main shaft 1 are on the same axis, providing favorable conditions for subsequent turning and being conducive to ensuring accurate turning of the spherical surface of the hub body 4.

[0027] AsFigure 3 , Figure 4 , Figure 8 and Figure 9 As shown in Figure 8 , Figure 9 , in one embodiment, three elastic support members are provided between the annular body 18 and the annular groove 14. The elastic support members include three connection ports 19. The three connection ports 19 are opened on the end surface of the annular body 18. Three docking rods 20 are inserted into the annular body 18. The three docking rods 20 respectively penetrate through the three connection ports 19 and are threadedly docked with the inner wall of the annular groove 14. Second support springs 21 are provided in all three connection ports 19. The ends of the second support springs 21 are fixedly connected to the inner walls of the connection ports 19.

[0028] Three threaded holes 22 are opened on the inner wall of the annular groove 14. The three threaded holes 22 are threadedly connected to the ends of the three docking rods 20.

[0029] It should be understood that through the threaded docking of the docking rod 20 and the annular groove 14, the detachability of the annular body 18 is realized, and when the docking rod 20 is threadedly docked with the annular groove 14, the annular body 18 can have the freedom to slide in the annular groove 14 under the elastic action of the second support spring 21. When the annular body 18 loses the function of the second sleeve body 12, the second support spring 21 will push the annular body 18 to move outward from the annular groove 14.

[0030] As Figure 1 and Figure 2 shown, in one embodiment, an annular limiting body 23 is fixedly connected to the surface of the plug-in plug 7. The annular limiting body 23 contacts the port edge of the second port 402 of the hub body 4. It should be understood that by the relative arrangement of the annular limiting body 23 and the circular limiting plate 5, after the plug-in plug 7 is docked with the central shaft 6, the hub body 4 is clamped between the annular limiting body 23 and the circular limiting plate 5.

[0031] As Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, in one embodiment, an annular knob 24 is fixedly connected to one end of the plug-in plug 7 away from the central shaft 6. The annular knob 24 has an inner ring surface 2401 and an outer flange surface 2402. It should be understood that by providing the annular knob 24, it is convenient for the staff to rotate the plug-in plug 7 with the help of a wrench.

[0032] As Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, in one embodiment, the thimble assembly includes a moving seat 25. A support shaft 26 is fixedly installed on the moving seat 25. The end of the support shaft 26 is fixedly connected to a thimble body 27. The thimble body 27 is docked in the tapered hole 8. An ultrasonic distance sensor 28 is fixedly connected to the edge of the end of the support shaft 26. The ultrasonic distance sensor 28 is used to measure the distance between the ultrasonic distance sensor 28 and the inner ring surface 2401 of the annular knob 24.

[0033] Specifically, a support rail 29 is slidably arranged below the moving seat 25. A threaded rod 31 is rotatably connected to the inner wall of the support rail 29. The moving seat 25 is threadedly connected to the surface of the threaded rod 31. The end of the support rail 29 is fixedly connected to a second motor 30. The output end of the second motor 30 is fixedly connected to the end of the threaded rod 31. It should be understood that after the plug 7 and the central shaft 6 are docked through the docking assembly and it is ensured that the plug 7 and the central shaft 6 are coaxially connected, the second motor 30 is started. The second motor 30 drives the threaded rod 31 to rotate. The threaded rod 31 threadedly drives the moving seat 25 to move. The moving seat 25 drives the support shaft 26 and the thimble body 27 to move until the thimble body 27 is inserted into the tapered hole 8 to support the end face of the plug 7, ensuring that the plug 7 does not move or shake during rotation, indirectly ensuring the stability of the hub body 4 clamped between the circular limit plate 5 and the plug 7, thereby ensuring the machining accuracy and stability. Before turning, first drive the chuck assembly to rotate through the main shaft 1. The chuck assembly drives the overall rotation of the central shaft 6, the plug 7, and the hub body 4. The annular knob 24 on the plug 7 will rotate synchronously. The ultrasonic distance sensor 28 will measure the distance between the ultrasonic distance sensor 28 and the inner ring surface 2401 of the annular knob 24. When the plug 7 and the annular knob 24 rotate one circle, the ultrasonic distance sensor 28 will detect a set of distance values. If there are obvious deviations between the measured distance values, it means that the plug 7, the central shaft 6, and the main shaft 1 are not coaxially driven and need to be repaired, which is beneficial for error correction and ensures the machining accuracy. As Figure 1 As shown, in one embodiment, it further includes a driving seat 32. A first motor 33 is fixedly installed on the driving seat 32. The output shaft of the first motor 33 is fixedly connected to the end of the main shaft 1. The main shaft 1 is rotatably connected to the driving seat 32.

[0034] It should be understood that the first motor 33 drives the main shaft 1 to rotate, providing rotational power for the main shaft 1.

Claims

1. A spherical surface intelligent turning processing device for a large mixed-flow pump rotor body, comprising a main shaft (1) and a center drill assembly, characterized in that: Further included are: A chuck assembly, which includes a chuck body (2) and three movable jaws (3). The three movable jaws (3) are used to clamp and position the outer edge of the first port (401) of the hub body (4), and the chuck body (2) is fixedly installed on the end face of the main shaft (1); A port positioning assembly, which includes a first limiting assembly located at the first port (401) of the hub body (4), a second limiting assembly located at the second port (402) of the hub body (4), and a docking assembly; The first limiting assembly includes a circular limiting plate (5), the circular limiting plate (5) is fixedly connected to the end face of the chuck body (2), and a central shaft (6) is fixedly connected to the end face of the circular limiting plate (5); The second limiting assembly includes a plug (7). A centering clamping assembly is arranged at the inner end of the plug (7). The centering clamping assembly is used to center and support the plug (7) inside the second port (402) of the hub body (4). A tapered hole (8) is formed on the outer end face of the plug (7). The docking assembly is arranged between the plug (7) and the central shaft (6), and the docking assembly is used to dock the plug (7) and the central shaft (6).

2. The intelligent turning machining device for the spherical surface of a large mixed-flow pump rotor body according to claim 1, wherein: The docking assembly includes a docking plug (9) and a docking port (10). The docking plug (9) is fixedly connected to the end face of the central shaft (6), the docking port (10) is formed at the center of the end face of the plug (7), and the docking plug (9) is inserted into the docking port (10).

3. The intelligent turning machining device for the spherical surface of a large mixed-flow pump rotor body according to claim 1, wherein: The docking assembly further includes a first sleeve body (11) and a second sleeve body (12). The first sleeve body (11) is fixedly connected to the end face of the plug (7), the second sleeve body (12) is fixedly sleeved on the surface of the central shaft (6). A first thread (1101) is formed on the outer surface of the first sleeve body (11), a second thread (1201) is formed on the inner wall of the second sleeve body (12), and the second sleeve body (12) is threadedly sleeved on the surface of the first sleeve body (11).

4. The intelligent turning machining device for the spherical surface of a large mixed-flow pump rotor body according to claim 3, characterized in that: The centering clamping assembly includes three insertion slots (13) and an annular slot (14). The three insertion slots (13) are formed on the edge of the plug (7) and are annularly arrayed with the plug (7) as a reference. Inner jaws (15) are slidably arranged in the three insertion slots (13). A wedge block (16) is fixedly connected to the inner end of the inner jaw (15), and a first support spring (17) is fixedly connected between the wedge block (16) and the inner wall of the insertion slot (13); The annular slot (14) is formed on the end face of the plug (7). The annular slot (14) communicates with the three insertion slots (13). An annular body (18) is slidably arranged in the annular slot (14), and the annular body (18) contacts the inclined surfaces of the three wedge blocks (16).

5. The intelligent turning machining device for the spherical surface of a large mixed-flow pump rotor body according to claim 4, characterized in that: There are three elastic support members provided between the annular body (18) and the annular groove (14). The elastic support members include three connection ports (19). The three connection ports (19) are opened on the end face of the annular body (18). Three docking rods (20) are inserted into the annular body (18). The three docking rods (20) respectively pass through the three connection ports (19) and are threadedly docked with the inner wall of the annular groove (14). Second support springs (21) are arranged in the three connection ports (19). The end of the second support spring (21) is fixedly connected to the inner wall of the connection port (19).

6. The intelligent turning machining device for the spherical surface of a large mixed-flow pump rotor body according to claim 5, characterized in that: Three threaded holes (22) are opened on the inner wall of the annular groove (14). The three threaded holes (22) are threadedly connected to the ends of the three docking rods (20).

7. An intelligent turning machining device for the spherical surface of a large mixed-flow pump rotor body according to claim 1, characterized in that: An annular limiting body (23) is fixedly connected to the surface of the plug-in plug (7). The annular limiting body (23) contacts the port edge of the second port (402) of the hub body (4).

8. A large mixed-flow pump rotor body spherical surface intelligent turning processing device according to claim 1, characterized in that: An annular knob (24) is fixedly connected to one end of the plug-in plug (7) away from the central axis (6). The annular knob (24) has an inner ring surface (2401) and an outer flange surface (2402).

9. A spherical surface intelligent turning machining device for a large mixed-flow pump rotor body according to claim 8, characterized in that: The thimble assembly includes a moving seat (25). A support shaft (26) is fixedly installed on the moving seat (25). The end of the support shaft (26) is fixedly connected to a thimble body (27). The thimble body (27) is docked in the conical hole (8). An ultrasonic ranging sensor (28) is fixedly connected to the edge of the end of the support shaft (26). The ultrasonic ranging sensor (28) is used to measure the distance between the ultrasonic ranging sensor (28) and the inner ring surface (2401) of the annular knob (24).

10. A spherical surface intelligent turning machining device for a large mixed-flow pump rotor body according to claim 1, characterized in that: It further includes a driving seat (32). A first motor (33) is fixedly installed on the driving seat (32). The output shaft of the first motor (33) is fixedly connected to the end of the main shaft (1). The main shaft (1) is rotatably connected to the driving seat (32).

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