Automatic blind installation device for multi-stage cycloid pump rotor

Abstract

The invention relates to an automatic blind installation device for a multistage cycloid pump rotor. A rotor clamping assembly comprises a supporting frame capable of ascending and descending, and clamping fingers are arranged in the supporting frame; a detection sleeve is arranged at the lower end of the supporting frame, the lower ends of the clamping fingers are inserted into the detection sleeve, an optical fiber sensor is arranged on the inner wall of the detection sleeve, and a rotor limiting seat is arranged at the lower end and provided with a limiting seat through hole aligned with the optical fiber sensor; the shell is arranged on the shell positioning assembly, the detection sleeve and the rotor limiting seat are firstly driven by the supporting frame to enter the shell, then the shell is driven by the shell positioning assembly to rotate, a blind hole in the bottom of the shell is detected through the optical fiber sensor to determine a to-be-assembled position, and after the shell rotates to the to-be-assembled position, the detection sleeve and the rotor limiting seat are fixed. The detection sleeve and the rotor limiting base are driven by the supporting frame to be separated from the shell, then the upper end of a rotor shaft in the middle of the rotor penetrates through the rotor limiting base and then is clamped through the clamping fingers, and a rotor pin shaft on the edge of the rotor is aligned with a limiting base through hole. During assembly, the rotor can be directly inserted into the shell to realize blind assembly.

Description

Technical Field

[0001] This invention relates to the field of cycloidal pump assembly technology, specifically to an automatic blind assembly device for a multi-stage cycloidal pump rotor. Background Technology

[0002] Multistage cycloidal pumps are widely used in hydraulic systems due to their high efficiency and low noise. However, their complex structure demands extremely high assembly precision. Traditional multistage cycloidal pump assembly relies on manual experience, requiring repeated trial assembly to align the rotor's outer edge pins with the blind holes in the housing. This results in low assembly efficiency, poor precision, and easy damage to components. Especially when the blind hole position is not visible, manual assembly becomes even more time-consuming, labor-intensive, and difficult to ensure assembly consistency. Furthermore, current technology primarily uses manual pressing of the rotor into the housing. The pressure during pressing is uncontrollable and fluctuates, easily damaging the seals on the outer ring of the interstage housing. While some automated equipment has emerged, these devices only achieve simple automatic pressing functions and lack the active identification and dynamic adjustment capabilities for the blind hole positioning within the housing. Therefore, they cannot meet the high-precision assembly requirements of multistage cycloidal pumps. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic blind assembly device for a multi-stage cycloidal pump rotor. Before assembling the rotor with the housing, the device can automatically detect and determine the position of the blind hole at the bottom of the housing, thereby determining the assembly position of the housing. In this way, the rotor can be directly inserted into the housing to achieve blind assembly, and the rotor pin shaft can be aligned with the blind hole at the bottom of the housing. This ensures assembly accuracy and improves assembly efficiency.

[0004] The objective of this invention is achieved through the following technical solution: An automatic blind assembly device for a multi-stage cycloidal pump rotor includes a rotor clamping assembly and a housing positioning assembly. The rotor clamping assembly includes a liftable support frame, and the support frame has movable clamping fingers inside. The lower end of the support frame has a detection sleeve, and the lower end of the clamping fingers is inserted into the detection sleeve. The inner wall of the detection sleeve is provided with an optical fiber sensor, and the lower end of the detection sleeve has a rotor limiting seat. The rotor limiting seat has a limiting seat through hole, and the optical fiber sensor is aligned with the limiting seat through hole. The housing to be assembled is placed on the rotatable housing positioning assembly. During assembly, the detection sleeve and the rotor limiting seat are first driven into the housing by the support frame and lowered to a set height. Then, the housing is driven to rotate by the housing positioning assembly, and the blind hole at the bottom of the housing is detected by the optical fiber sensor to determine the assembly position. After the housing rotates to the assembly position, the detection sleeve and the rotor limiting seat are driven to detach from the housing by the support frame and rise to a set height. Then, the upper end of the rotor shaft in the middle of the rotor to be assembled passes through the rotor limiting seat and is clamped by the clamping fingers. The rotor pin at the edge of the rotor is aligned with the limiting seat through hole.

[0005] The support frame of the rotor clamping assembly includes an upper mounting plate and a lower mounting plate. The upper mounting plate is provided with a finger clamping cylinder on its lower side, and each finger is driven to open and close by the finger clamping cylinder. The lower mounting plate is provided with a finger limiting hole in the middle and a detection sleeve on its lower side. The lower end of the finger passes through the finger limiting hole and enters the detection sleeve.

[0006] The power end of the finger-clamping cylinder is provided with a finger-clamping seat. The finger clamping includes a connecting part and a clamping part. The connecting part is located on the upper side of the lower mounting plate and is fixedly connected to the corresponding finger-clamping seat. The clamping part passes through the finger limiting hole and enters the detection sleeve. The inner side of the clamping part is provided with a contoured clamping block that cooperates with the upper end of the rotor shaft. The fiber optic sensor is located in the gap between the inner side of the detection sleeve and the outer side of the clamping part.

[0007] The support frame is driven to lift and lower by a blind-mount drive assembly, which includes a drive cylinder, a fixed plate, and a drive plate. The fixed plate is located on the upper end of a frame, the lower end of the drive cylinder is located on the fixed plate, and the power shaft end of the drive cylinder is connected to the drive plate. The lower side of the drive plate is connected to the upper end of the support frame through a force sensor.

[0008] The drive cylinder is connected to the drive plate via a floating joint; the drive cylinder has guide shafts on both sides, the upper surface of the fixed plate has first guide sleeves on both sides, the lower surface of the drive plate has second guide sleeves on both sides, and the lower end of the guide shaft passes through the first and second guide sleeves on the corresponding sides in sequence; the drive plate has a fixed ring, the guide shaft has a spring pressure plate and a spring, and the upper end of the spring is connected to the spring pressure plate and the lower end is connected to the fixed ring on the corresponding side; the guide shaft has a displacement sensor.

[0009] The housing positioning assembly includes a positioning support plate, and the positioning support plate is provided with a housing positioning fixture plate, with the lower end of the housing located in the housing positioning fixture plate.

[0010] The housing positioning tooling plate is positioned and connected to the positioning support plate through positioning pins, quick-change locking pins, and locking devices.

[0011] The housing positioning assembly is driven to rotate by a rotating assembly, which includes a fixed base, a hollow platform, a flange bearing seat, a drive shaft, and a rotation drive device. The hollow platform is mounted on the fixed base, with its lower side connected to the rotation drive device and its upper side connected to the flange bearing seat. The lower end of the drive shaft passes through the flange bearing seat and is inserted into the hollow cavity inside the hollow platform. A bearing is provided between the drive shaft and the flange bearing seat. The drive shaft is driven to rotate by the rotation drive device, and its upper end is fixedly connected to a positioning support plate in the housing positioning assembly.

[0012] The fixed base is equipped with a sensor bracket, and the sensor bracket is equipped with a photoelectric sensor.

[0013] The blind-mount drive assembly is mounted on a frame, and the lower end of the frame is mounted on a base. The base is equipped with a rotating assembly, and the housing positioning assembly is driven to rotate by the rotating assembly.

[0014] The advantages and positive effects of this invention are as follows: 1. Before assembling the rotor and the housing, this invention first uses a blind assembly drive assembly to drive the support frame of the rotor clamping assembly to descend, thereby driving the detection sleeve and rotor limiting seat on the lower side of the support frame to descend into the housing. Then, the housing is rotated by the housing positioning assembly and the fiber optic sensor on the inner wall of the detection sleeve determines the position of the bottom blind hole. After determining the position of the blind hole, the equipment control system can directly control the rotation assembly to drive the housing positioning assembly to the assembly position, that is, drive the housing to rotate to the assembly position. In this way, the rotor can be directly inserted into the housing to achieve blind assembly, and can ensure the accurate docking of the rotor pin at the edge of the rotor with the blind hole at the bottom of the housing. While ensuring assembly accuracy, it also improves assembly efficiency, especially in meeting the requirements of precise alignment assembly of the multi-stage cycloidal pump rotor and the housing when the blind hole is not visible.

[0015] 2. This invention is applicable to the assembly of rotors and housings of different specifications and models. The upper end of the rotor shaft in the middle of the rotor is fixed by the closing clamping of each clamping finger in the rotor clamping assembly, which can meet the positioning requirements of rotors of different specifications and models. The housing positioning tooling plate in the housing positioning assembly can be quickly disassembled and replaced with the positioning support plate according to the housing condition, which can meet the positioning requirements of housings of different specifications and models.

[0016] 3. In the process of assembling the rotor and the housing, the force sensor between the blind assembly drive assembly and the rotor clamping assembly can detect the magnitude of the assembly torque in real time. At the same time, the displacement sensor on the guide shaft of the blind assembly drive assembly can detect the distance between the rotor and the fixed plate in real time. In addition, the floating joint between the drive cylinder and the drive plate and the floating effect of the spring on the guide shaft ensure that the rotor or housing will not be damaged due to assembly overload. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 2 for Figure 1 A schematic diagram of the structure of the blind-mounted drive assembly. Figure 3 for Figure 1 A schematic diagram of the structure of the rotor clamping assembly. Figure 4 for Figure 3 Cross-sectional view of the rotor clamping assembly in operation. Figure 5 for Figure 1 Schematic diagram of the middle housing positioning assembly and rotating assembly. Figure 6 for Figure 5 Top view of the middle housing positioning assembly and rotating assembly. Figure 7 for Figure 5Cross-sectional view of the middle housing positioning assembly and rotating assembly. Figure 8 for Figure 1 A schematic diagram of the middle frame.

[0018] In this designation, 1 is the rotor, 101 is the rotor shaft, 102 is the rotor pin, 2 is the housing, 3 is the blind-mounted drive assembly, 301 is the drive cylinder, 302 is the guide shaft, 303 is the first guide sleeve, 304 is the fixing plate, 305 is the floating joint, 306 is the drive plate, 307 is the fixing ring, 308 is the spring pressure plate, 309 is the spring, 401 is the force sensor, 402 is the displacement sensor, 403 is the photoelectric sensor, 5 is the rotor clamping assembly, 501 is the upper mounting plate, 502 is the finger clamping cylinder, 503 is the finger clamping seat, 504 is the lower mounting plate, 505 is the connecting rod, 506 is the contour clamping block, 507 is the rotor limiting seat, and 5071 is the limiting seat through hole. 508 is a clamping finger, 5081 is a connecting part, 5082 is a clamping part, 601 is a detection sleeve, 602 is a fiber optic sensor, 7 is a housing positioning assembly, 701 is a positioning support plate, 702 is a housing positioning tooling plate, 703 is a positioning pin, 704 is a quick-change locking pin, 705 is a locking device, 8 is a rotating assembly, 801 is a fixed base, 802 is a rotating drive device, 803 is a hollow platform, 804 is a flange bearing seat, 805 is a bearing, 8051 is a bearing cover, 806 is a drive shaft, 807 is a sensor bracket, 9 is a frame, 901 is a base plate, 902 is a side plate, 903 is a reinforcing support plate, 904 is a mounting top plate, and 10 is a base. Detailed Implementation

[0019] The invention will now be described in further detail with reference to the accompanying drawings.

[0020] like Figures 1-8 As shown, the present invention includes a rotor clamping assembly 5 and a housing positioning assembly 7, wherein the rotor clamping assembly 5 includes a liftable support frame, and the support frame is provided with opening and closing movable clamping fingers 508; as Figures 3-4 As shown, the lower end of the support frame is provided with a detection sleeve 601, and the lower end of the clamping finger 508 is inserted into the detection sleeve 601. The inner wall of the detection sleeve 601 is provided with a fiber optic sensor 602, and the lower end is provided with a rotor limiting seat 507. The rotor limiting seat 507 is provided with a limiting seat through hole 5071, and the fiber optic sensor 602 is aligned with the limiting seat through hole 5071. Figures 5-7As shown, the housing 2 to be assembled is mounted on a rotatable housing positioning assembly 7. During assembly, the detection sleeve 601 and the rotor limiting seat 507 are first driven into the housing 2 by the support frame and lowered to a set height. Then, the housing 2 is rotated by the housing positioning assembly 7, and the blind hole at the bottom of the housing 2 is detected by the fiber optic sensor 602 to determine the assembly position. After the housing 2 rotates to the assembly position, the detection sleeve 601 and the rotor limiting seat 507 are driven out of the housing 2 by the support frame and rise to a set height. Then, the upper end of the rotor shaft 101 in the middle of the rotor 1 to be assembled passes through the rotor limiting seat 507 and is clamped by each clamping finger 508. The rotor pin 102 at the edge of the rotor 1 is aligned with the through hole 5071 of the limiting seat. In this embodiment, the fiber optic sensor 602 is a commercially available product.

[0021] like Figures 4-5 As shown, in this embodiment, the support frame of the rotor clamping assembly 5 includes an upper mounting plate 501 and a lower mounting plate 504. The upper mounting plate 501 is provided with a finger clamping cylinder 502 on its lower side, and each finger clamp 508 is driven to open and close by the finger clamping cylinder 502. The lower mounting plate 504 is provided with a finger limiting hole in the middle and a detection sleeve 601 on its lower side. The lower end of the finger clamp 508 passes through the finger limiting hole and enters the detection sleeve 601.

[0022] like Figures 4-5 As shown, in this embodiment, the power end of the finger-clamping cylinder 502 is provided with a finger-clamping seat 503. The finger clamp 508 includes a connecting part 5081 and a clamping part 5082. The connecting part 5081 is located on the upper side of the lower mounting plate 504 and is fixedly connected to the corresponding finger-clamping seat 503. The clamping part 5082 passes through the finger limiting hole and enters the detection sleeve 601. The inner side of the clamping part 5082 is provided with a contoured clamping block 506 that cooperates with the upper end of the rotor shaft 101. The fiber optic sensor 602 is located in the gap between the inner side of the detection sleeve 601 and the outer side of the clamping part 5082. Additionally, as shown... Figures 4-5 As shown, in this embodiment, the upper mounting plate 501 is connected to the lower mounting plate 504 via a connecting rod 505 to form a support frame.

[0023] like Figure 1 As shown, the support frame is driven to rise and fall by the blind-mounted drive assembly 3, as... Figure 2As shown, in this embodiment, the blind assembly drive assembly 3 includes a drive cylinder 301, a fixing plate 304, and a drive plate 306. The fixing plate 304 is located on the upper end of a frame 9, and the lower end of the drive cylinder 301 is located on the fixing plate 304. The power shaft end of the drive cylinder 301 is connected to the drive plate 306. The lower side of the drive plate 306 is connected to the upper mounting plate 501 at the upper end of the support frame via a force sensor 401. When the blind assembly drive assembly 3 drives the support frame to lower the rotor 1 into the housing 2, the force sensor 401 detects in real time whether the assembly torque meets the requirements. In this embodiment, the force sensor 401 is a six-dimensional force sensor, which is a commercially available product.

[0024] like Figure 2 As shown, in this embodiment, the drive cylinder 301 is connected to the drive plate 306 via a floating joint 305. The floating joint 305 is a technology known in the art and is a commercially available product. Additionally, as... Figure 2 As shown, in this embodiment, the drive cylinder 301 is provided with guide shafts 302 on both sides, the upper surface of the fixed plate 304 is provided with first guide sleeves 303 (linear bearings are used in this embodiment) on both sides, the lower surface of the drive plate 306 is provided with second guide sleeves (linear bearings are used in this embodiment) on both sides, and the lower end of the guide shaft 302 passes through the first guide sleeve 303 and the second guide sleeve on the corresponding side in sequence; the drive plate 306 is provided with a fixing ring 307, the guide shaft 302 is provided with a spring pressure plate 308 and a spring 309, and the upper end of the spring 309 is connected to the spring pressure plate 308 and the lower end is connected to the fixing ring 307 on the corresponding side; the guide shaft 302 is provided with a displacement sensor 402 for real-time detection of the distance between it and the fixed plate 304, and the displacement sensor 402 is a commercially available product.

[0025] During assembly, when the lower end of the rotor 1 contacts the bottom of the housing 2, the floating joint 305 will act as a buffer. At the same time, the spring pressure plate 308 on the guide shaft 302 will compress the spring 309 to act as a buffer. In addition, the force sensor 401 detects the assembly torque in real time, and the displacement sensor 402 detects the distance between the displacement sensor and the fixed plate 304 in real time. This ensures that the rotor 1 or housing 2 will not be damaged due to assembly overload.

[0026] like Figures 5-7 As shown, in this embodiment, the housing positioning assembly 7 includes a positioning support plate 701, and a housing positioning fixture plate 702 is provided on the positioning support plate 701. The lower end of the housing 2 is disposed in the housing positioning fixture plate 702; Figure 6As shown, in this embodiment, the housing positioning fixture 702 is positioned and connected to the positioning support plate 701 via a positioning pin 703, a quick-change locking pin 704, and a locking device 705. This allows for easy replacement of the appropriate housing positioning fixture 702 according to different housing models. Simultaneously, the upper end of the rotor shaft 101 in the middle of the rotor 1 is fixed by a clamping method, which can also accommodate rotors 1 of different models and specifications, thereby improving the flexibility and applicability of the invention. In this embodiment, the quick-change locking pin 704 and the locking device 705 are well-known technologies in the art and are commercially available products.

[0027] like Figures 5-7 As shown, the housing positioning assembly 7 is driven to rotate by the rotating assembly 8. In this embodiment, the rotating assembly 8 includes a fixed base 801, a hollow platform 803, a flange bearing seat 804, a drive shaft 806, and a rotating drive device 802. The hollow platform 803 is mounted on the fixed base 801. The lower side of the hollow platform 803 is connected to the rotating drive device 802, and the upper side is connected to the flange bearing seat 804. The lower end of the drive shaft 806 passes through the flange bearing seat 804 and is inserted into the hollow cavity inside the hollow platform 803. A bearing 805 is provided between the drive shaft 806 and the flange bearing seat 804 to support rotation. The upper end of the bearing 805 is positioned by a bearing cap 8051. The drive shaft 806 is driven to rotate by the rotating drive device 802, and the upper end of the drive shaft 806 is fixedly connected to the positioning support plate 701 in the housing positioning assembly 7. Additionally, as shown... Figure 7 As shown, in this embodiment, the rotary drive device 802 can be a geared servo motor, which is located on one side of the hollow platform 803 and the power shaft and drive shaft 806 can be connected by a transmission component to realize torque transmission, such as a synchronous belt component, which is a well-known technology in the art.

[0028] like Figure 2 As shown, in this embodiment, a sensor bracket 807 is provided on the fixed base 801, and a photoelectric sensor 403 is provided on the sensor bracket 807. The photoelectric sensor 403 is used to detect whether the housing positioning tooling plate 702 is in place.

[0029] like Figure 1 and Figure 8 As shown, in this embodiment, the blind-mount drive assembly 3 is mounted on a frame 9. The frame 9 includes side plates 902 on both sides, and the lower ends of the side plates 902 are connected by a base plate 901. The upper ends of the side plates are connected by a connecting seat. The connecting seat is provided with a mounting top plate 904 for fixing the fixing plate 304 in the blind-mount drive assembly 3. A reinforcing support plate 903 is provided between the middle of the side plates 902.

[0030] Other examples Figure 1As shown, in this embodiment, the base plate 901 at the lower end of the frame 9 and the fixed base 801 in the rotating assembly 8 are both disposed on a base 10.

[0031] The working principle of this invention is as follows: The present invention includes the following steps in operation: Step 1: Place the housing 2 on the housing positioning fixture 702 of the housing positioning assembly 2, wherein the housing positioning fixture 702 can be flexibly replaced according to the specifications of the housing 2.

[0032] Step 2: The blind mounting drive assembly 3 drives the support frame of the rotor clamping assembly 5 to descend, and the descent of the support frame causes the detection sleeve 601 on the lower side and the rotor limit seat 507 to enter the housing 2 together and descend to the set height.

[0033] Step 3: The rotating component 8 is started and drives the housing positioning component 2 to rotate a set number of revolutions (one revolution in this embodiment), that is, drives the housing 2 to rotate a set number of revolutions. During this process, the fiber optic sensor 602 inside the detection sleeve 601 detects the position of the blind hole at the bottom of the housing 2 through the limit seat through hole 5071 on the rotor limit seat 507, and sends the detection result to the equipment control system. The equipment control system directly controls the rotating component 8 to drive the housing 2 to rotate to the assembly position according to the detection result. At this time, the fiber optic sensor 602, the limit seat through hole 5071 and the blind hole at the bottom of the housing 2 are aligned in sequence.

[0034] Step 4: The blind installation drive assembly 3 drives the support frame of the rotor clamping assembly 5 to rise, thereby driving the detection sleeve 601 and the rotor limit seat 507 to rise and detach from the housing 2 and rise to a set height. This height must ensure the subsequent installation of the rotor 1.

[0035] Step 5: The operator fixes the upper end of the rotor 1 with the rotor clamping assembly 5. The upper end of the rotor shaft 101 in the middle of the rotor 1 passes through the through hole in the middle of the rotor limiting seat 507 and enters between each clamping finger 508. At the same time, the rotor pin 102 on the edge of the rotor 1 is aligned with the through hole 5071 of the limiting seat. After the adjustment in Step 3, the fiber optic sensor 602, the through hole 5071 of the limiting seat and the blind hole at the bottom of the housing 2 are aligned in sequence, which ensures that the rotor pin 102 is aligned with the blind hole at the bottom of the housing 2.

[0036] Step 6: After the position of rotor 1 is adjusted, the clamping cylinder 502 in rotor clamping assembly 5 is activated to drive each clamping finger 508 to close and complete the clamping and fixing of the upper end of rotor shaft 101, thereby fixing rotor 1.

[0037] Step 7: The blind assembly drive assembly 3 drives the support frame of the rotor clamping assembly 5 to descend again, and drives the rotor 1 to descend and directly insert into the housing 2 to complete the assembly. Since the rotor pin 102 has been aligned with the blind hole at the bottom of the housing 2 through the above steps, this step only requires directly driving the rotor 1 to descend for blind assembly. In addition, during the descent of the rotor 1, the force sensor 401 between the blind assembly drive assembly 3 and the rotor clamping assembly 5 detects the assembly torque in real time, and the displacement sensor 402 on the guide shaft 302 detects the distance between the guide shaft 302 and the fixing plate 304 in real time. In addition, with the floating joint 305 between the drive cylinder 301 and the drive plate 306 and the floating action of the spring 309 on the guide shaft 302, the present invention can ensure that the rotor 1 or the housing 2 will not be damaged due to assembly overload.

Claims

1. A multi-stage gerotor pump rotor automatic blind loading device, characterized in that: The rotor clamping assembly (5) and the shell positioning assembly (7) are included, wherein the rotor clamping assembly (5) includes a liftable support frame, and the inside of the support frame is provided with a clamping finger (508) that can move in and out; the lower end of the support frame is provided with a detection sleeve (601), and the lower end of the clamping finger (508) is inserted into the detection sleeve (601), the inner wall of the detection sleeve (601) is provided with an optical fiber sensor (602), the lower end is provided with a rotor limiting seat (507), and the upper end of the rotor limiting seat (507) is provided with a limiting seat through hole (5071), and the optical fiber sensor (602) is aligned with the limiting seat through hole (5071); The shell (2) to be assembled is arranged on the shell positioning assembly (7) that can rotate, and when assembled, the detection sleeve (601) and the rotor limiting seat (507) are first driven into the shell (2) by the support frame and then lowered to a set height, then the shell (2) is rotated by the shell positioning assembly (7) and the bottom blind hole of the shell (2) is detected by the optical fiber sensor (602) to determine the position to be assembled, after the shell (2) is rotated to the position to be assembled, the detection sleeve (601) and the rotor limiting seat (507) are driven to separate from the shell (2) by the support frame and then rise to a set height, then the upper end of the rotor shaft (101) in the middle of the rotor (1) to be assembled passes through the rotor limiting seat (507) and is clamped by each clamping finger (508), and the rotor pin shaft (102) at the edge of the rotor (1) is aligned with the limiting seat through hole (5071).

2. The automatic blind assembly device for a multi-stage gerotor pump rotor according to claim 1, characterized by: The support frame of the rotor clamping assembly (5) includes an upper mounting plate (501) and a lower mounting plate (504), wherein the lower side of the upper mounting plate (501) is provided with a clamping finger cylinder (502), and each clamping finger (508) is driven to move in and out by the clamping finger cylinder (502), the middle of the lower mounting plate (504) is provided with a finger limiting hole, and the lower side is provided with a detection sleeve (601), and the lower end of the clamping finger (508) passes through the finger limiting hole and enters the detection sleeve (601).

3. The multi-stage gerotor pump rotor automatic blind mounting device according to claim 2, characterized in that: The power end of the clamping finger cylinder (502) is provided with a clamping finger seat (503), the clamping finger (508) includes a connecting part (5081) and a clamping part (5082), wherein the connecting part (5081) is arranged on the upper side of the lower mounting plate (504) and is fixedly connected with the corresponding clamping finger seat (503), the clamping part (5082) enters the detection sleeve (601) after passing through the finger limiting hole, and the inner side of the clamping part (5082) is provided with a profiled clamping block (506) matched with the upper end of the rotor shaft (101), and the optical fiber sensor (602) is arranged in the gap between the inner side of the detection sleeve (601) and the outer side of the clamping part (5082).

4. The multi-stage gerotor pump rotor automatic blind mounting device according to claim 1, characterized in that: The support frame is driven to lift by a blind mounting driving assembly (3), the blind mounting driving assembly (3) comprises a driving cylinder (301), a fixed plate (304) and a driving plate (306), wherein the fixed plate (304) is arranged on the upper end of a rack (9), the lower end of the driving cylinder (301) is arranged on the fixed plate (304), and the power shaft end of the driving cylinder (301) is connected with the driving plate (306), and the lower side of the driving plate (306) is connected with the upper end of the support frame through a force sensor (401).

5. The multi-stage gerotor pump rotor automatic blind mounting device according to claim 4, characterized in that: The driving cylinder (301) is connected with the driving plate (306) through a floating joint (305); guide shafts (302) are arranged on the two sides of the driving cylinder (301), first guide sleeves (303) are arranged on the upper surface of the fixed plate (304) on the two sides, second guide sleeves are arranged on the lower surface of the driving plate (306) on the two sides, and the lower ends of the guide shafts (302) pass through the first guide sleeves (303) and the second guide sleeves on the corresponding sides in sequence; a fixed ring (307) is arranged on the driving plate (306), spring pressing plates (308) and springs (309) are arranged on the guide shafts (302), and the upper ends of the springs (309) are connected with the spring pressing plates (308), and the lower ends of the springs (309) are connected with the fixed rings (307) on the corresponding sides; displacement sensors (402) are arranged on the guide shafts (302).

6. The multi-stage gerotor pump rotor automatic blind mounting device according to claim 1, characterized in that: The shell positioning assembly (7) comprises a positioning support plate (701), and a shell positioning tool disc (702) is arranged on the positioning support plate (701), and the lower end of the shell (2) is arranged in the shell positioning tool disc (702).

7. The multi-stage gerotor pump rotor automatic blind mounting device according to claim 6, characterized in that: The shell positioning tool disc (702) is positioned and connected with the positioning support plate (701) through positioning pins (703), quick-change locking pins (704) and lockers (705).

8. The multi-stage gerotor pump rotor automatic blind mounting device according to claim 1, characterized in that: The shell positioning assembly (7) is driven to rotate by a rotating assembly (8), the rotating assembly (8) comprises a fixed base (801), a hollow platform (803), a flange bearing seat (804), a driving shaft (806) and a rotating driving device (802), wherein the hollow platform (803) is arranged on the fixed base (801), the lower side of the hollow platform (803) is connected with the rotating driving device (802), and the upper side of the hollow platform (803) is connected with the flange bearing seat (804); the lower end of the driving shaft (806) passes through the flange bearing seat (804) and is inserted into the internal hollow cavity of the hollow platform (803), and a bearing (805) is arranged between the driving shaft (806) and the flange bearing seat (804); the driving shaft (806) is driven to rotate by the rotating driving device (802), and the upper end of the driving shaft (806) is fixedly connected with the positioning support plate (701) in the shell positioning assembly (7).

9. The multi-stage gerotor pump rotor automatic blind mounting device according to claim 8, characterized in that: A sensor support (807) is arranged on the fixed base (801), and a photoelectric sensor (403) is arranged on the sensor support (807).

10. The multi-stage gerotor pump rotor automatic blind mounting device according to claim 4, characterized in that: The blind driving assembly (3) is arranged on a frame (9), and the lower end of the frame (9) is arranged on a base (10), the base (10) is provided with a rotating assembly (8), and the shell positioning assembly (7) is driven to rotate through the rotating assembly (8).

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