A self-centering blisk clamp and clamping method

Abstract

The application discloses a kind of automatic centering integral blade disc clamps and clamping methods, including base, left fixed frame, right fixed frame, lifting sliding mechanism, clamping mechanism, centering mechanism, rotating mechanism and control panel;Left fixed frame and the right fixed frame are oppositely arranged, and are installed on base by lifting sliding mechanism;Clamping mechanism is arranged on left fixed frame and right fixed frame, and is rotatably connected with left fixed frame and right fixed frame;Centering mechanism is installed on clamping mechanism, and is arranged in the center hole of blade disc;Rotating mechanism is connected with clamping mechanism, for driving blade disc to rotate;Control panel is arranged on base, and is electrically connected with rotating mechanism and centering mechanism.The clamp is radially centered to blade disc by centering mechanism, and clamping mechanism is axially clamped to blade disc, to ensure the radial coaxiality and axial end surface positioning accuracy of blade disc, and the rotating mechanism is adjusted to rotate blade disc, to quickly switch the blade of blade disc, to improve machining precision and machining efficiency.

Description

Technical Field

[0001] This invention relates to the field of integral bladed disk processing technology, specifically to an automatic centering integral bladed disk fixture and clamping method. Background Technology

[0002] Integral bladed disks (IBDs) combine engine rotor blades and the disk into a single unit, eliminating the need for tenons, mortises, and locking devices found in traditional connections. They offer advantages such as lightweight construction, high efficiency, and high reliability, and are widely used in the aerospace industry. However, IBDs also feature thin blades, high flexibility, and complex geometry, requiring extremely high precision during manufacturing and testing.

[0003] Currently, the production of integral bladed disks usually relies on manual alignment, which makes it difficult to simultaneously consider the axial and radial references of the integral bladed disk. During the multi-process flow, repeated clamping errors are easily accumulated, resulting in coaxiality deviation and excessive end face runout. In severe cases, it may even cause damage to the blade surface and deformation under stress. Summary of the Invention

[0004] To address the aforementioned deficiencies in existing technologies, an automatic centering integral bladed disk fixture and clamping method are provided. This fixture automatically centers and axially clamps the integral bladed disk, ensuring radial coaxiality and axial end face positioning accuracy, thereby improving the machining accuracy of the integral bladed disk.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: An automatic centering integral bladed disk clamp includes a base, a left fixed frame, a right fixed frame, a lifting and sliding mechanism, a clamping mechanism, a centering mechanism, a rotating mechanism, and a control panel; The left and right fixed frames are arranged opposite to each other and are mounted on the base via a lifting and sliding mechanism. The lifting and sliding mechanism is used to adjust the height of the left and right fixed frames and the distance between them. The clamping mechanism is mounted on the left and right fixed frames and is rotatably connected to the left and right fixed frames. The impeller is vertically mounted in the middle of the clamping mechanism, which is used to clamp the impeller axially from both sides. The centering mechanism is mounted on the clamping mechanism and located in the center hole of the impeller. The centering mechanism is used to abut against the inner wall of the center hole of the impeller and to radially center the impeller by means of internal support. The rotating mechanism is connected to the clamping mechanism. After the clamping mechanism clamps the bladed disk axially, the rotating mechanism drives the clamping mechanism and the bladed disk to rotate around the centering axis. The control panel is located on the base and is electrically connected to the rotating mechanism and the centering mechanism.

[0006] According to the above technical solution, the clamping mechanism includes a clamping mandrel, a left clamping plate, and a right clamping plate. Both the left and right clamping plates are provided with bosses. The left and right fixed frames are respectively fitted onto the outside of the left and right clamping plates through the bosses and are rotatably connected to the left and right clamping plates. The bosses have limiting grooves for engaging with the left and right fixed frames. The clamping mandrel passes through the left fixed frame, the left clamping plate, the impeller, the right clamping plate, and the right fixed frame in sequence. The clamping mandrel has fastening nuts threaded on both ends, which are used to lock the left and right clamping plates.

[0007] According to the above technical solution, the clamping mechanism further includes an anti-rotation component. The left or right clamping disc has a radial slide rail, and the anti-rotation component is slidably disposed on the slide rail. The anti-rotation component is used to insert into the mounting hole of the impeller to prevent the impeller from rotating.

[0008] According to the above technical solution, the anti-rotation component includes a positioning pin and a hand-tightening screw. The positioning pin is located in the assembly hole of the impeller, and the hand-tightening screw is located in the slide rail. The positioning pin and the hand-tightening screw are connected by threads.

[0009] According to the above technical solution, the rotating mechanism includes a large gear, a small gear, and a rotary motor. The large gear is located on the clamping spindle, adjacent to the outer side of the left clamping plate boss. The small gear meshes with the large gear. The rotary motor is located on the left fixed frame, and its output shaft is connected to the small gear. The rotary motor is electrically connected to the control panel.

[0010] According to the above technical solution, the centering mechanism is mounted on the clamping mandrel and includes: a centering fixed plate, on which multiple straight sliding grooves are evenly arranged along the central circumference; a centering power plate, on which multiple eccentric arc grooves are arranged to cooperate with the straight sliding grooves; multiple centering rods, located between the centering fixed plate and the centering power plate, one end of each centering rod being slidably connected to the straight sliding groove and the eccentric arc groove, and the other end passing through the wing plate of the centering fixed plate to abut against the inner wall of the center hole of the impeller; a transmission component, with a centering rotating plate and a centering driven wheel respectively at both ends, and the centering rotating plate and the centering power plate being driven by toothed meshing; a spring, sleeved on the transmission component and abutting between the centering rotating plate and the right clamping plate; a motor fixing plate, adjacent to the outer side of the boss of the right clamping plate; a centering driving wheel and a centering motor, the centering driving wheel and the centering driven wheel meshing with each other, the centering motor being mounted on the motor fixing plate, its output shaft being connected to the centering driving wheel, and the centering motor being electrically connected to the control panel.

[0011] According to the above technical solution, the tooth width of the centering driving wheel is greater than the tooth width of the centering driven wheel.

[0012] According to the above technical solution, the lifting and sliding mechanism includes a lead screw, column one, column two, and column three. The lead screw is rotatably connected to the base through a bearing. Column one is fixedly installed on the base. One end of the left fixed frame is threadedly connected to the lead screw, and the other end is slidably connected to column one. The base is provided with two parallel tracks, and sliders are slidably connected to both tracks. Column two and column three are respectively fixed on the two sliders. The two ends of the right fixed frame are slidably connected to column two and column three, respectively. Guide rods are fixed to both ends of the left fixed frame. The two guide rods pass through the two ends of the right fixed frame and are slidably connected to the right fixed frame.

[0013] According to the above technical solution, a hand crank is provided at the top of the lead screw.

[0014] The present invention also provides a clamping method for an automatically centering integral impeller clamp, based on the clamp described in any of the above claims, comprising the following steps: a lifting and sliding mechanism is activated to adjust the height of the left and right fixed frames and the distance between them; the impeller is placed behind the clamping mechanism, the centering mechanism is activated, and the centering rod abuts against the inner wall of the central hole of the impeller to radially center the impeller; the clamping mechanism is activated, and the left and right clamping plates clamp the impeller axially from both sides; the rotating mechanism is activated to drive the impeller to rotate around the centering axis, quickly switching between different blades of the impeller.

[0015] The present invention has the following beneficial effects: 1. This invention uses a centering mechanism to radially center the impeller and a clamping mechanism to axially clamp it. The combination of these two mechanisms ensures reliable clamping of the impeller, guaranteeing radial coaxiality and axial end-face positioning accuracy, thus improving machining precision. A rotating mechanism drives the impeller to rotate indexed around the centering axis, allowing for rapid blade switching without re-clamping, avoiding repeated clamping errors, improving machining and inspection efficiency, and reducing the risk of blade deformation and damage.

[0016] 2. The centering mechanism, clamping mechanism and rotating mechanism of the present invention have a compact structure and occupy little overall space, and can be easily arranged in existing production lines.

[0017] 3. In the centering mechanism, after the centering motor starts, it drives the centering rotating disk to rotate via the centering drive wheel and the centering driven wheel, which in turn drives the centering power disk to rotate. The centering rod slides along the eccentric arc groove and the straight sliding groove, extending outwards from the centering fixed disk and abutting against the inner wall of the center hole of the impeller, thus achieving radial centering of the impeller by internal support. By replacing the centering rod with one of different lengths, it can be adapted to impellers of different specifications.

[0018] 4. In the centering mechanism, the tooth width of the centering driving gear is greater than that of the centering driven gear, so that the effective meshing contact area of ​​the two gears has a margin in the axial direction, thereby improving meshing stability and reducing the risk of derailment.

[0019] 5. The hand-tightened screws and locating pins are connected by threads. After tightening, they clamp the right clamping disc from both sides, thus fixing it on the slide rail and preventing it from loosening during the impeller machining process. The locating pins are inserted into the mounting holes of the impeller to prevent the impeller from rotating relative to the right clamping disc, further improving the stability of the clamping.

[0020] 6. The rotary motor and centering motor can be remotely controlled via the control panel, avoiding the potential dangers of manual operation and improving safety. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the overall structure of the impeller clamp provided in an embodiment of the present invention; Figure 2 A cross-sectional view of the overall structure of the bladed disk clamp provided in an embodiment of the present invention; Figure 3 An exploded view of the bladed disk clamp provided as an embodiment of the present invention; Figure 4 A schematic diagram of the rotating mechanism and clamping mechanism of the bladed disk clamp provided for an embodiment of the present invention; Figure 5 A schematic diagram of the centering mechanism of the bladed disk clamp provided for an embodiment of the present invention; Figure 6 A schematic diagram of the initial state of the centering mechanism of the bladed disk clamp provided in an embodiment of the present invention; Figure 7 A schematic diagram of the centering state of the centering mechanism of the bladed disk clamp provided in an embodiment of the present invention; Figure 8 A schematic diagram of the centering rod of the impeller clamp provided in an embodiment of the present invention.

[0023] In the diagram: 1. Base; 11. Control panel; 2. Left mounting bracket; 3. Right mounting bracket; 4. Lifting and sliding mechanism; 41. Lead screw; 42. Column 1; 43. Column 2; 44. Column 3; 45. Bearing; 46. Track; 47. Slider; 48. Guide rod; 49. Hand crank; 5. Clamping mechanism; 51. Clamping spindle; 52. Left clamping plate; 53. Right clamping plate; 54. Boss; 55. Fastening nut; 56. Slide rail; 57. Tightening screw; 58. Locating pin; 6. Centering mechanism; 61. Centering fixed plate; 62. Straight slide groove; 63. Centering power plate; 64. Eccentric arc groove; 65. Centering rod; 66. Transmission component; 67. Centering rotating plate; 68. Centering driven wheel; 69. Spring; 610. Motor fixing plate; 611. Centering motor; 612. Centering driving wheel; 7. Rotating mechanism; 71. Rotary motor; 72. Pinion; 73. Large gear; 8. Impeller; 81. Center hole; 82. Assembly hole. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Reference Figure 1-8 As shown, the present invention provides an automatic centering integral bladed disk clamp and clamping method.

[0026] Example 1 The impeller 8 clamp includes a base 1, a left fixed frame 2, a right fixed frame 3, a lifting and sliding mechanism 4, a clamping mechanism 5, a centering mechanism 6, a rotating mechanism 7, and a control panel 11. The left fixed frame 2 and the right fixed frame 3 are arranged opposite to each other and are mounted on the base 1 via the lifting and sliding mechanism 4. The lifting and sliding mechanism 4 is used to adjust the height of the left fixed frame 2 and the right fixed frame 3, as well as the distance between them. The clamping mechanism 5 is located on the left fixed frame 2 and the right fixed frame 3 and is rotatably connected to them. The impeller 8 is vertically positioned on the clamping mechanism. In the middle of the 5, the clamping mechanism 5 is used to axially clamp the impeller 8 from both sides; the centering mechanism 6 is installed on the clamping mechanism 5 and is located in the center hole 81 of the impeller 8. The centering mechanism 6 is used to abut against the inner wall of the center hole 81 of the impeller 8 and to radially center the impeller 8 by means of internal support; the rotating mechanism 7 is connected to the clamping mechanism 5. After the clamping mechanism 5 axially clamps the impeller 8, the rotating mechanism 7 drives the clamping mechanism 5 and the impeller 8 to rotate around the centering axis; the control panel 11 is located on the base 1 and is electrically connected to the rotating mechanism 7 and the centering mechanism 6.

[0027] In this embodiment, as Figure 2 and Figure 3As shown, the clamping mechanism 5 includes a clamping spindle 51, a left clamping plate 52, and a right clamping plate 53. Both the left fixed bracket 2 and the right fixed bracket 3 have circular mounting holes. Both the left clamping plate 52 and the right clamping plate 53 have circular bosses 54. The left fixed bracket 2 is fitted onto the outside of the left clamping plate 52 via the bosses 54, allowing the left clamping plate 52 to rotate relative to the left fixed bracket 2 with its bosses 54 as the axis of rotation. The right fixed bracket 3 is fitted onto the outside of the right clamping plate 53 via the bosses 54, allowing the right clamping plate 53 to rotate relative to the right fixed bracket 3 with its bosses 54 as the axis of rotation. The bosses 54 of both the left clamping plate 52 and the right clamping plate 53 have limiting grooves that engage with the left fixed bracket 2 and the right fixed bracket 3 respectively, preventing axial displacement of the left clamping plate 52 and the right clamping plate 53 during rotation. The impeller 8 is vertically positioned between the left clamping plate 52 and the right clamping plate 53. The clamping spindle 51 passes through the left fixed frame 2, the left clamping plate 52, the impeller 8, the right clamping plate 53 and the right fixed frame 3 from left to right. Both ends of the clamping spindle 51 are threaded sections, and fastening nuts 55 are threaded through the threads. The left clamping plate 52, the impeller 8 and the right clamping plate 53 are locked by tightening the fastening nuts 55 at both ends.

[0028] In this embodiment, the clamping mechanism 5 further includes an anti-rotation component, preferably a locating pin 58 and a hand-tightening screw 57. A radial slide rail 56 is provided on the right clamping disc 53. The hand-tightening screw 57 is located on the slide rail 56 and can slide along it. The locating pin 58 is located in the mounting hole 82 of the impeller 8, and the locating pin 58 is threadedly connected to the hand-tightening screw 57. After the hand-tightening screw 57 and the locating pin 58 are tightened, the right clamping disc 53 is clamped from both sides, thereby fixing it to the slide rail 56 and preventing loosening during the processing of the impeller 8. The locating pin 58 prevents the impeller 8 from rotating independently relative to the right clamping disc 53, further improving the stability of the impeller 8 clamping.

[0029] In this embodiment, as Figure 4 As shown, the rotating mechanism 7 includes a large gear 73, a small gear 72, and a rotary motor 71. The large gear 73 is sleeved on the clamping mandrel 51, adjacent to the outer side of the boss 54 of the left clamping disc 52. The large gear 73, the left clamping disc 52, the impeller 8, and the right clamping disc 53 are locked together as a whole by the fastening nuts 55 at both ends of the clamping mandrel 51. The small gear 72 meshes with the large gear 73. The rotary motor 71 is mounted on the left fixed frame 2, and its output shaft is connected to the small gear 72. Starting the rotary motor 71 drives the small gear 72 to rotate, which in turn drives the large gear 73 to rotate, thereby driving the impeller 8 to rotate. This allows for rapid switching of the blades of the impeller 8 without reclamping, improving processing and inspection efficiency.

[0030] In this implementation, such as Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the centering mechanism 6 is mounted on the clamping mandrel 51 and located within the central hole 81 of the impeller 8. The centering mechanism 6 includes a centering fixed disk 61, a centering power disk 63, centering rods 65, a transmission component 66, a spring 69, a motor mounting plate 610, a centering drive wheel 612, and a centering motor 611. The bottom of the centering fixed disk 61 has six straight sliding grooves 62 evenly distributed around its center. The centering power disk 63 has six eccentric arc grooves 64 that mate with the straight sliding grooves 62. One end of each eccentric arc groove 64 is close to the center of the centering power disk 63, and the other end is away from the center of the centering power disk 63. Six centering rods 65 are arranged between the centering fixed disk 61 and the centering power disk 63. One end of each centering rod 65 is slidably connected to the straight sliding groove 62 and the eccentric arc groove 64, and the other end passes through the impeller plate of the centering fixed disk 61. The transmission component 66 has a centering rotating disk 67 and a centering driven wheel 68 at its two ends, respectively. The centering rotating disk 67 and the centering power disk 63 are driven by toothed meshing. The spring 69 is sleeved on the transmission component 66 and abuts between the centering rotating disk 67 and the right clamping disk 53. The centering driving wheel 612 and the centering driven wheel 68 are meshed with each other on the outer side of the protrusion 54 of the right clamping disk 53 of the motor fixing plate 610. The centering motor 611 is mounted on the motor fixing plate 610, and its output shaft is connected to the centering driving wheel 612.

[0031] In this embodiment, the centering process of the impeller 8 is as follows: the centering motor 611 is started to drive the centering drive wheel 612 to rotate, which in turn drives the centering driven wheel 68 and the transmission component 66 to rotate. The centering rotating disk 67 drives the centering power disk 63 to rotate through tooth meshing. The centering rod 65 slides along the eccentric arc groove 64 and the straight slide groove 62 and extends outward to the centering fixed disk 61. The six centering rods 65 are evenly abutted against the inner wall of the center hole 81 of the impeller 8, and the radial centering of the impeller 8 is achieved by internal support.

[0032] In this embodiment, by replacing the centering rod 65 with one of different lengths, it is possible to adapt to impellers 8 of different specifications.

[0033] In this embodiment, when clamping the blade disk 8, the right clamping disk 53 pushes the spring 69 to squeeze the centering rotating disk 67, thereby pressing the centering power disk 63 and the centering fixed disk 61, which can effectively maintain the stability of the centering mechanism 6 and prevent the centering rod 65 from derailing.

[0034] In this embodiment, the tooth width of the centering driving gear 612 is greater than the tooth width of the centering driven gear 68, so that the effective meshing contact area of ​​the two gears has a margin in the axial direction, thereby improving meshing stability and reducing the risk of derailment.

[0035] In this embodiment, the control panel 11 is electrically connected to the rotary motor 71 and the centering motor 611 to achieve remote control, avoid the potential dangers of manual operation, and improve safety.

[0036] In this embodiment, the lifting and sliding mechanism 4 includes a vertically arranged lead screw 41, a first column 42, a second column 43, and a third column 44. The lead screw 41 is rotatably connected to the base 1 via a bearing 45. The first column 42 is fixedly installed on the base 1. One end of the left fixing frame 2 is threadedly connected to the lead screw 41, and the other end is slidably connected to the first column 42. The base 1 is also provided with two parallel tracks 46, and sliders 47 are slidably connected to both tracks 46. The second column 43 and the third column 44 are respectively fixed to the two sliders 47. The two ends of the right fixing frame 3 are slidably connected to the second column 43 and the third column 44, respectively. Guide rods 48 are fixed to both ends of the left fixing frame 2, and the two guide rods 48 pass through the two ends of the right fixing frame 3 and are slidably connected to the right fixing frame 3.

[0037] In this embodiment, a hand crank 49 is provided at the top of the lead screw 41 to facilitate the operator to rotate the lead screw 41.

[0038] In this embodiment, before clamping the bladed disk 8, the screw 41 is rotated by hand crank 49 to change the height of the left fixed frame 2 and the right fixed frame 3. The right fixed frame 3 slides along the track 46 through the second column 43, the third column 44 and the slider 47 to change the distance between the left fixed frame 2 and the right fixed frame 3, thereby achieving stable clamping of bladed disks 8 of different specifications.

[0039] Example 2 A clamping method for an automatically centering integral bladed disk 8 clamp, based on the detection device described in any one of the above claims, includes the following steps: S1. Adjust the height of the left and right fixed plates by hand crank 49, drive the right fixed plate to slide along the track 46, so that there is enough working space between the left and right fixed plates; S2. Install the clamping mechanism 5, the impeller 8, the centering mechanism 6, and the rotating mechanism 7. S3. Adjust the height of the positioning pin 58 and the hand screw 57, align them with the mounting hole 82 of the impeller 8, and then tighten the positioning pin 58 and the hand screw 57. S4. Initially rotate the fastening nut 55 to drive the right clamping plate 53 to gradually approach the impeller 8, so that the positioning pin 58 is inserted into the assembly hole 82 of the impeller 8. S5. Start the centering motor 611 and drive the centering rod 65 to abut against the inner wall of the center hole 81 of the impeller 8 to radially center the impeller 8. S6. Tighten the fastening nut 55 thoroughly to clamp the impeller 8 axially. S7. Start the rotary motor 71 to drive the impeller 8 to rotate and quickly switch between different blades of the impeller 8.

[0040] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. An automatic centering integral bladed disk clamp, characterized in that: It includes a base, a left fixed frame, a right fixed frame, a lifting and sliding mechanism, a clamping mechanism, a centering mechanism, a rotating mechanism, and a control panel; The left and right fixed frames are arranged opposite to each other and are mounted on the base via a lifting and sliding mechanism. The lifting and sliding mechanism is used to adjust the height of the left and right fixed frames and the distance between them. The clamping mechanism is mounted on the left and right fixed frames and is rotatably connected to the left and right fixed frames. The impeller is vertically mounted in the middle of the clamping mechanism, which is used to clamp the impeller axially from both sides. The centering mechanism is mounted on the clamping mechanism and located in the center hole of the impeller. The centering mechanism is used to abut against the inner wall of the center hole of the impeller and to radially center the impeller by means of internal support. The rotating mechanism is connected to the clamping mechanism. After the clamping mechanism clamps the bladed disk axially, the rotating mechanism drives the clamping mechanism and the bladed disk to rotate around the centering axis. The control panel is located on the base and is electrically connected to the rotating mechanism and the centering mechanism.

2. The automatic centering integral bladed disk clamp according to claim 1, characterized in that: The clamping mechanism includes a clamping mandrel, a left clamping plate, and a right clamping plate. Both the left and right clamping plates are provided with bosses. The left and right fixed frames are respectively fitted onto the outside of the left and right clamping plates through the bosses and are rotatably connected to the left and right clamping plates. The bosses have limiting grooves for engaging with the left and right fixed frames. The clamping mandrel passes through the left fixed frame, the left clamping plate, the impeller, the right clamping plate, and the right fixed frame in sequence. The clamping mandrel has fastening nuts threaded on both ends, which are used to lock the left and right clamping plates.

3. The automatic centering integral bladed disk clamp according to claim 2, characterized in that: The clamping mechanism also includes an anti-rotation component. The left or right clamping disc has a radial slide rail, and the anti-rotation component is slidably disposed on the slide rail. The anti-rotation component is used to insert into the mounting hole of the impeller to prevent the impeller from rotating.

4. The automatic centering integral bladed disk clamp according to claim 3, characterized in that: The anti-rotation component includes a positioning pin and a hand-tightening screw. The positioning pin is located in the mounting hole of the impeller, and the hand-tightening screw is located in the slide rail. The positioning pin and the hand-tightening screw are connected by threads.

5. The automatic centering integral bladed disk clamp according to claim 2, characterized in that: The rotating mechanism includes a large gear, a small gear, and a rotary motor. The large gear is located on the clamping mandrel, adjacent to the outer side of the left clamping plate boss. The small gear meshes with the large gear. The rotary motor is located on the left fixed frame, and its output shaft is connected to the small gear. The rotary motor is electrically connected to the control panel.

6. The automatic centering integral bladed disk clamp according to claim 2, characterized in that: The centering mechanism is mounted on the clamping mandrel and includes: a centering fixed plate with multiple straight sliding grooves evenly distributed along its central circumference; a centering power plate with multiple eccentric arc grooves that mate with the straight sliding grooves; multiple centering rods positioned between the centering fixed plate and the centering power plate, one end of each rod slidably connected to the straight sliding groove and the eccentric arc groove, and the other end passing through the wing plate of the centering fixed plate to abut against the inner wall of the central hole of the impeller; a transmission component with a centering rotating plate and a centering driven wheel at each end, the centering rotating plate and the centering power plate being driven by toothed meshing; a spring sleeved on the transmission component and abutting between the centering rotating plate and the right clamping plate; a motor mounting plate adjacent to the outer side of the boss on the right clamping plate; a centering driving wheel and a centering motor, the centering driving wheel and the centering driven wheel meshing with each other, the centering motor mounted on the motor mounting plate, its output shaft connected to the centering driving wheel, and the centering motor electrically connected to the control panel.

7. The automatic centering integral bladed disk clamp according to claim 6, characterized in that: The tooth width of the centering driving gear is greater than the tooth width of the centering driven gear.

8. The automatic centering integral bladed disk clamp according to claim 1, characterized in that: The lifting and sliding mechanism includes a lead screw, column one, column two, and column three. The lead screw is rotatably connected to the base via a bearing. Column one is fixedly installed on the base. One end of the left fixed frame is threadedly connected to the lead screw, and the other end is slidably connected to column one. The base is provided with two parallel tracks, and sliders are slidably connected to both tracks. Column two and column three are fixed on the two sliders respectively. The two ends of the right fixed frame are slidably connected to column two and column three respectively. Guide rods are fixed to both ends of the left fixed frame, and the two guide rods pass through the two ends of the right fixed frame and are slidably connected to the right fixed frame.

9. The automatic centering integral bladed disk clamp according to claim 8, characterized in that: The lead screw is equipped with a hand crank at its top.

10. A clamping method for an automatically centering integral impeller clamp, performed based on any one of the clamps described above, comprising the following steps: a lifting and sliding mechanism is activated to adjust the height of the left and right fixed frames and the distance between them; the impeller is placed behind the clamping mechanism, and the centering mechanism is activated, with the centering rod abutting against the inner wall of the impeller's central hole to radially center the impeller; the clamping mechanism is activated, with the left and right clamping discs axially clamping the impeller from both sides; a rotating mechanism is activated to drive the impeller to rotate around the centering axis, rapidly switching between different blades of the impeller.

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