Automatic positioning, bearing and transferring device for helicopter propeller rings

Abstract

The invention discloses an automatic positioning, bearing and transferring device for helicopter propeller rings, which is characterized in that a jacking mechanism, a rotation driving assembly and a bearing mechanism are arranged in a support frame, the jacking mechanism, the rotation driving assembly and the bearing mechanism are respectively connected with an external upper computer, and the bearing mechanism can identify whether the rings are lowered to the top of the support frame; the upper computer sends a movement instruction to the jacking mechanism and the rotation driving assembly according to the bottom structure data of the circular ring, so that the jacking mechanism and the rotation driving assembly move upwards and rotate horizontally, the circular ring is accurately received, jacked up and separated from the supporting frame, and then the circular ring is driven to rotate horizontally for angle adjustment; and therefore, accurate clamping of the follow-up overturning clamp is facilitated, automatic operation of circular ring jacking and angle adjustment is achieved, and the machining efficiency and the production safety are improved.

Description

Technical Field

[0001] This invention belongs to the field of helicopter propeller parts processing technology, specifically relating to an automatic positioning and transfer device for helicopter propeller rings. Background Technology

[0002] As a core component of the helicopter's power system, the machining accuracy of the central ring of the helicopter propeller directly determines the helicopter's flight stability and operational safety. During the machining and welding of the helicopter propeller ring, a flipping fixture is used for clamping. Due to the heavy weight of the central ring, it needs to be lifted by hoisting equipment, then positioned by a receiving mechanism, and finally transported to the flipping fixture for clamping and flipping to complete double-sided welding, reinforcement, or grinding processes.

[0003] Currently, the positioning and receiving of helicopter rotor rings relies on manual operation in conjunction with hoisting equipment. The subsequent flipping process requires the flipping fixture to precisely grip several fixed points of the ring, necessitating pre-fixation of the ring's position. However, manual operation struggles to accurately identify the ring's horizontal angle, necessitating repeated lifting and readjustment during clamping, severely impacting the efficiency of subsequent flipping and clamping. Therefore, a device is needed to precisely fix and lift the ring, adjusting its height and angle based on the ring's bottom structural data when stationary. This would allow for stable and precise lifting of the ring, enabling it to accurately engage with the fixed fixture on the receiving mechanism and rotate horizontally to the corresponding clamping angle of the flipping fixture. This ensures the clamping accuracy of the flipping fixture on the rotor's central ring, guaranteeing the safety of the flipping process. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic positioning, receiving, and transferring device for helicopter propeller rings. A lifting mechanism, a rotation drive assembly, and a receiving mechanism are installed within a support frame. These components are connected to an external host computer. The receiving mechanism can identify whether the ring has been lowered to the top of the support frame and can send the ring's bottom structure data to the host computer. Based on this data, the host computer sends motion commands to the lifting mechanism and the rotation drive assembly, causing them to move upwards and rotate horizontally to accurately receive and lift the ring, lifting it away from the support frame. The ring is then rotated horizontally for angle adjustment, facilitating precise gripping by a subsequent flipping fixture.

[0005] This invention is achieved through the following technical solution: An automatic positioning, receiving, and transferring device for a helicopter propeller ring includes a support frame, a middle plate, a lifting mechanism, a rotation drive assembly, a receiving mechanism, and a host computer. The top of the support frame supports the ring. The middle plate is located in the middle of the support frame and is parallel to the bottom of the support frame. The lifting mechanism is located on the middle plate, and a support plate is located above the lifting mechanism. The rotation drive assembly is located on the support plate, and the receiving mechanism is located on top of the rotation drive assembly. The lifting mechanism drives the receiving mechanism to move up and down. The rotation drive assembly adjusts the horizontal rotation angle of the receiving mechanism. The receiving mechanism receives the ring and adjusts its horizontal angle. The lifting mechanism, rotation drive assembly, and receiving mechanism are all connected to the host computer. The ring is lowered to the top of the support frame by a gantry crane. The receiving mechanism identifies the bottom structure data of the ring and sends it to the host computer. The host computer controls the lifting mechanism and rotation drive assembly to move according to the bottom structure data of the ring, so that the receiving mechanism lifts the ring and separates it from the support frame, so that the bottom of the ring is inserted into the receiving area of ​​the receiving mechanism.

[0006] Preferably, the lifting mechanism includes a servo motor, three commutators, and four screw jacks. Each screw jack is connected to a screw that passes through a middle plate. The three commutators are arranged side-by-side along the central axis of the middle plate. The servo motor is located on one side of the middle commutator and is connected to it via a coupling. The middle commutator is connected to the commutators on the left and right sides via couplings. The output ends of the commutators on the left and right sides are each connected to two screw jacks, which are also connected to the screw jacks via couplings. The servo motor can simultaneously drive all four screws to lift synchronously. Four bearing seats are provided at the bottom of the support plate, and the screws are inserted into these bearing seats and rotatably connected to the support plate.

[0007] Preferably, the rotation drive assembly includes a gear disk and a gear reducer motor. The gear reducer motor is disposed below the support plate and connected to the support plate. The gear of the gear reducer motor is located above the support plate. The gear disk is rotatably connected to the support plate. The gear disk is meshed with the gear of the gear reducer motor. The gear reducer motor drives the gear disk to rotate.

[0008] Preferably, an annular groove is provided on the support plate at the bottom of the gear disk, and a plurality of balls are provided in the annular groove. The gear disk is inserted into the annular groove, the annular groove limits the position of the gear disk, and the bottom of the gear disk abuts against the balls.

[0009] Preferably, the receiving mechanism includes a mounting plate, a circular ring limiting component, and a data recognition component. The mounting plate is disposed on the top of the gear disk and connected to the gear disk. Both the middle of the mounting plate and the middle of the gear disk are provided with hollow holes. The circular ring limiting component is disposed on the mounting plate and is provided with a central hole. The central hole is coaxially arranged with the hollow hole of the gear disk. The data recognition component is used to read the hoisting and lowering posture of the circular ring.

[0010] Preferably, the annular limiting assembly includes an inner ring limiting member and an outer ring limiting member. The outer ring limiting member is sleeved on the inner ring limiting member. The thickness of the inner ring limiting member is greater than the thickness of the outer ring limiting member. The upper and lower surfaces of the inner ring limiting member are provided with a plurality of first protrusions at intervals. The first protrusions are provided with first grooves. The mounting plate is provided with corresponding first protrusions. The first protrusions are inserted into the grooves of the first protrusions. Bolts pass through the first grooves and are threadedly connected to the first protrusions below. The outer ring limiting member is provided with a set of second protrusions on both the left and right sides. The bottom of the second protrusions of the outer ring limiting member is provided with corresponding second grooves. The mounting plate is provided with corresponding second protrusions. The second protrusions are inserted into the second grooves. Bolts pass through the second grooves and are threadedly connected to the second protrusions below.

[0011] Preferably, a third protrusion is provided between each of two adjacent first protrusions, and the third protrusion is used to support the inner ring limiting member.

[0012] Preferably, the data recognition component includes a mounting component, a first visual camera, a second visual camera, and a wide-angle ultrasonic ranging sensor. The mounting component is disposed in the central hole of the inner ring limiting component. The first visual camera is disposed on the mounting component and is coaxially arranged with the central hole. The second visual camera is disposed on a first protrusion of the mounting plate and passes through the inner ring limiting component. The wide-angle ultrasonic ranging sensor is disposed on the support frame and is positioned higher than the first and second visual cameras. Preferably, a base plate is provided below the support frame, and a set of guide rails is provided between the base plate and the support frame. The bottom of the support frame is slidably connected to the guide rails. A lead screw reciprocating mechanism is provided on the base plate, and the two ends of the lead screw in the reciprocating mechanism abut against the front and rear ends of the support frame, respectively. The lead screw reciprocating mechanism can drive the support frame to move back and forth.

[0013] Preferably, the support frame has abutment portions on both the left and right sides of the top, the abutment portions being arc-shaped plate structures, and the abutment portions being used to support the ring.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1) In this invention, a lifting mechanism, a rotation drive assembly, and a receiving mechanism are provided within the support frame. The lifting mechanism, the rotation drive assembly, and the receiving mechanism are respectively connected to an external host computer. The receiving mechanism can identify whether the ring has been lowered to the top of the support frame and can send the bottom structure data of the ring to the host computer. The host computer sends motion commands to the lifting mechanism and the rotation drive assembly according to the bottom structure data of the ring, so that they move upward and rotate horizontally to accurately receive the ring and lift it up, so that it leaves the support frame. Then, the ring is driven to rotate horizontally to adjust the angle, so as to facilitate the accurate clamping of the subsequent flipping fixture. This realizes the automated operation of ring lifting and angle adjustment, improving processing efficiency and production safety.

[0015] 2) In this invention, two vision cameras and a wide-angle ultrasonic ranging sensor are provided. The wide-angle ultrasonic ranging sensor is installed on the top of the support frame, at a height higher than that of the vision cameras, so as to detect whether the ring has fallen on the top of the support frame and whether it is stationary. After the ring falls on the top of the support frame, the first vision camera in the center acquires the structural data of the bottom center of the ring, and the second vision camera is located at the position of the ring limiting component on one side. The second vision camera acquires the local structural data of the bottom edge of the ring. The first and second vision cameras send the bottom structural data of the ring to the host computer. The host computer calculates the horizontal angle of the ring based on the data transmitted by the two, thereby adjusting the horizontal angle of the ring limiting component and lifting the ring so that the bottom of the ring is accurately inserted into the ring limiting component. The horizontal angle of the ring is adjusted to facilitate the precise clamping of the rear flipping fixture. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the automatic positioning and transfer device for circular rings in this invention.

[0018] Figure 2 This is a schematic diagram of the receiving mechanism in this invention.

[0019] Figure 3 This is a schematic diagram of the rotation drive assembly in this invention.

[0020] Figure 4 This is a schematic diagram of the data recognition component in this invention.

[0021] Figure 5This is a schematic diagram of the circular ring limiting component in this invention.

[0022] Wherein: 1-Support frame, 11-Abutting part, 2-Intermediate plate, 3-Lifting mechanism, 31-Servo motor, 32-Commutator, 33-Screw jack, 4-Bearing plate, 5-Rotation drive assembly, 51-Gear reduction motor, 52-Gear disk, 6-Mounting plate, 61-First protrusion, 62-Second protrusion, 63-Third protrusion, 7-Data recognition assembly, 71-Mounting piece, 72-First vision camera, 73-Second vision camera, 74-Wide-angle ultrasonic ranging sensor, 8-Circular limiting assembly, 81-Inner ring limiting piece, 811-First groove, 82-Outer ring limiting piece, 821-Second groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 some embodiments of the present invention, but not all embodiments.

[0024] Example 1: An automatic positioning and transfer device for helicopter propeller rings, such as Figure 1 , Figure 2 and Figure 3 As shown, the system includes a support frame 1, a middle plate 2, a lifting mechanism 3, a rotation drive assembly 5, a receiving mechanism, and a host computer. The support frame 1 is formed by welding square tubing, with open structures on its left and right sides and top. The middle plate 2 is located in the middle of the support frame 1 and is parallel to the bottom of the support frame 1, and is welded to the support frame 1. The top left and right sides of the support frame 1 are each provided with an abutment portion 11, which is an arc-shaped plate structure used to support a ring. When the overhead crane lowers the ring, the ring rests on the abutment portions 11 on the left and right sides of the support frame 1. The lifting mechanism 3 is located on the middle plate 2, and a bearing plate 4 is located above the lifting mechanism 3. The rotation drive assembly 5 is located on the bearing plate 4, and the receiving mechanism is located on top of the rotation drive assembly 5. The lifting mechanism 3 drives the receiving mechanism to move up and down, and can simultaneously drive the bearing plate 4 and the rotation drive assembly 5 to move up and down. The rotation drive assembly 5 is used to adjust the horizontal rotation angle of the receiving mechanism; the receiving mechanism is used to identify, receive and lift the ring, and limit the ring after receiving it. After the ring is lifted, the host computer sends a reset command to the rotation drive assembly 5, and the rotation drive assembly 5 drives the receiving mechanism to rotate and reset, so that the ring rotates to the clamping position to cooperate with the rear flipping fixture for clamping and flipping.

[0025] The lifting mechanism 3, the rotation drive assembly 5, and the receiving mechanism are all connected to the host computer. The ring is lowered to the abutment part 11 on the top of the support frame 1 by the overhead crane. The receiving mechanism can identify the bottom structure data of the ring and send it to the host computer. The host computer controls the lifting mechanism 3 and the rotation drive assembly 5 to move in accordance with the bottom structure data of the ring, so that the bottom of the ring is accurately inserted into the receiving area of ​​the receiving mechanism.

[0026] The lifting mechanism 3 includes a servo motor 31, three commutators 32, and four screw jacks 33. Each screw jack 33 has a lead screw connected to it, which extends downwards through the intermediate plate 2. The three commutators 32 are arranged side-by-side along the central axis of the intermediate plate 2. The servo motor 31 is located to one side of the middle commutator 32 and is connected to it via a coupling. Similarly, the middle commutator 32 is connected to the commutators 32 on the left and right sides via couplings. Two screw jacks 33 are respectively installed at the output ends of the left and right commutators 32, and are also connected to them via couplings. The servo motor 31 can simultaneously drive all four lead screws in the screw jacks 33 to move synchronously. Bearing seats are installed at the bottom of the support plate 4 at the corresponding positions of the lead screws. The lead screws are inserted into the bearing seats and rotatably connected to the support plate 4. The servo motor 31 drives the four lead screws to move up and down synchronously, thus enabling the support plate 4 to move smoothly up and down.

[0027] The rotation drive assembly 5 includes a gear disk 52 and a gear reducer motor 51. The gear reducer motor 51 is located below the support plate 4 and is connected to the support plate 4 by bolts. The drive shaft of the gear reducer motor 51 passes through the support plate 4, so that the gear at its end is located above the support plate 4. The gear disk 52 is rotatably connected to the support plate 4 and meshes with the gear of the gear reducer motor 51. The gear reducer motor 51 drives the gear disk 52 to rotate, and the rotation of the gear disk 52 can drive the receiving mechanism to rotate.

[0028] An annular groove is provided on the bearing plate 4 at the bottom of the gear disk 52. Several balls are provided in the annular groove. An annular protrusion is provided at the bottom of the gear disk 52. The protrusion is inserted into the annular groove. The annular groove limits the position of the gear disk 52. The bottom of the gear disk 52 abuts against the balls. The balls can reduce the friction of the gear disk 52 rotation.

[0029] A base plate is provided below the support frame 1, and a set of guide rails is provided between the base plate and the support frame 1. The bottom of the support frame 1 is slidably connected to the guide rails. A lead screw reciprocating machine is provided on the base plate. The two ends of the lead screw in the lead screw reciprocating machine abut against the front and rear ends of the support frame 1 respectively. The lead screw reciprocating machine can drive the support frame 1 to move back and forth, and can make fine adjustments to the bearing position of the support frame 1, so that the ring can more accurately fall at the abutment part 11 of the support frame 1.

[0030] Example 2: This embodiment further defines the receiving mechanism based on the above embodiments, such as... Figure 1 , Figure 4 and Figure 5 As shown, the receiving mechanism includes a mounting plate 6, a circular ring limiting component 8, and a data recognition component 7. The mounting plate 6 is set on the top of the gear disk 52 and connected to the gear disk 52. The middle parts of the mounting plate 6, the gear disk 52, and the bearing plate 4 are all hollow structures. The circular ring limiting component 8 is set on the mounting plate 6 and has a central hole. The central hole is coaxial with the hollow hole of the gear disk 52. The circular ring limiting component 8 abuts against the circular ring to limit the circular ring. The data recognition component 7 is used to read the structural data at the bottom of the circular ring and send the read structural data to the host computer. The host computer sets the movement process of the lifting mechanism 3 and the rotation drive component 5 according to the structural data at the bottom of the circular ring.

[0031] The circular ring limiting assembly 8 includes an inner ring limiting member 81 and an outer ring limiting member 82. The inner ring limiting member 81 has a circular ring structure, and the outer ring limiting member 82 has straight edges on both sides. The outer ring limiting member 82 is fitted onto the inner ring limiting member 81. The thickness of the inner ring limiting member 81 is greater than the thickness of the outer ring limiting member 82. The upper and lower surfaces of the inner ring limiting member 81 are provided with a plurality of first protrusions at intervals. The first protrusions are provided with first grooves 811. The mounting plate 6 is provided with corresponding first protrusions 61. The first protrusions 61 are inserted into the first grooves 811 of the first protrusions. The bolts pass through the first grooves 811 and are threadedly connected to the first protrusions 61 below. The bottom of the ring is provided with corresponding positioning pins. The positioning pins can be inserted into the first grooves 811 of the first protrusions to make the ring stable on the circular ring limiting assembly 8.

[0032] A set of second protrusions is provided on both the left and right sides of the outer ring limiting member 82. A second groove 821 is provided at the bottom of the second protrusion of the outer ring limiting member 82. A second protrusion 62 is provided on the mounting plate 6. The second protrusion 62 and the second groove 821 are inserted and engaged. The bolt passes through the second groove 821 and is threadedly connected to the second protrusion 62 below. A positioning post is also provided at the bottom edge of the ring. The positioning post at the edge can be inserted and engaged with the second groove 821 on the second protrusion to further ensure the stability of the ring.

[0033] A third protrusion 63 is provided between each of the two adjacent first protrusions 61. The third protrusion 63 abuts against the bottom of the inner ring limiting member 81 and is used to support the inner ring limiting member 81.

[0034] The data recognition component 7 includes a mounting piece 71, a first visual camera 72, a second visual camera 73, and a wide-angle ultrasonic ranging sensor 74. The mounting piece 71 is disposed in the center hole of the inner ring limiting member 81. The first visual camera 72 is mounted on the mounting piece 71 and is coaxially arranged with the center hole. The second visual camera 73 is disposed on a first protrusion 61 of the mounting plate 6 and passes through the inner ring limiting member 81. The wide-angle ultrasonic ranging sensor 74 is disposed on the support frame 1 and is located at the edge of the abutment portion 11 on one side. The wide-angle ultrasonic ranging sensor 74 is positioned higher than the first visual camera 72 and the second visual camera 73. When the ring is lowered, the wide-angle ultrasonic ranging sensor 74 can obtain the distance of the ring. The distance data between the ring and the abutment part 11 is used. When the distance data is less than or equal to a set threshold, it means that the ring has landed on the abutment part 11 of the support frame 1. At this time, the first vision camera 72 and the second vision camera 73 acquire the structural data of the bottom center and one side edge of the ring and send it to the host computer. The host computer calculates the deviation angle between the current position and the clampable position based on the bottom structural data of the ring. The host computer calculates the motion stroke of the lifting mechanism 3 and the rotation drive component 5 and sends a transport command, which drives the ring limiting component 8 to rotate according to the deviation angle, so that the positioning post at the bottom of the ring corresponds to the position of the first groove 811 and the second groove 821, lifting the ring. After the ring is lifted to the preset height, the ring separates from the abutment part 11 of the support frame 1. At this time, the host computer sends a reset command to the rotation drive component 5 again. The rotation drive component 5 drives the ring to rotate and reset, keeping the ring in the clampable position for subsequent flipping and clamping. The other parts of this embodiment are the same as those in the above embodiment, and will not be repeated here.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this invention is usually placed in during use. They are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this invention does not imply that the components are required to be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An automatic positioning and transfer device for helicopter propeller rings, characterized in that, The system includes a support frame, a middle plate, a lifting mechanism, a rotation drive assembly, a receiving mechanism, and a host computer. The top of the support frame supports a circular ring. The middle plate is located in the middle of the support frame and is parallel to the bottom of the support frame. The lifting mechanism is located on the middle plate, and a support plate is located above the lifting mechanism. The rotation drive assembly is located on the support plate, and the receiving mechanism is located on top of the rotation drive assembly. The lifting mechanism drives the receiving mechanism to move up and down. The rotation drive assembly adjusts the horizontal rotation angle of the receiving mechanism. The receiving mechanism receives the circular ring and adjusts the horizontal angle of the ring. The lifting mechanism, rotation drive assembly, and receiving mechanism are all connected to the host computer. The ring is lowered to the top of the support frame by a gantry crane. The receiving mechanism identifies the bottom structure data of the ring and sends it to the host computer. The host computer controls the lifting mechanism and rotation drive assembly to move according to the bottom structure data of the ring, so that the receiving mechanism lifts the ring and separates it from the support frame, so that the bottom of the ring is inserted into the receiving area of ​​the receiving mechanism.

2. The helicopter propeller ring automatic positioning and receiving transfer device as described in claim 1, characterized in that, The lifting mechanism includes a servo motor, three commutators, and four screw jacks. Each screw jack has a screw connected to it, which passes through a central plate. The three commutators are arranged side-by-side along the central axis of the central plate. The servo motor is located to one side of the middle commutator and is connected to it via a coupling. The middle commutator is connected to the commutators on its left and right sides via couplings. The output ends of the left and right commutators are each connected to two screw jacks, which are also connected to the screw jacks via couplings. The servo motor can simultaneously drive all four screws to lift synchronously. Four bearing seats are located at the bottom of the support plate, and the screws are inserted into these bearing seats and rotatably connected to the support plate.

3. The automatic positioning and transfer device for helicopter propeller rings as described in claim 1, characterized in that, The rotation drive assembly includes a gear disk and a gear reducer motor. The gear reducer motor is located below the support plate and connected to the support plate. The gear of the gear reducer motor is located above the support plate. The gear disk is rotatably connected to the support plate. The gear disk is meshed with the gear of the gear reducer motor. The gear reducer motor drives the gear disk to rotate.

4. The automatic positioning and transfer device for helicopter propeller rings as described in claim 3, characterized in that, An annular groove is provided on the support plate at the bottom of the gear disk, and a number of balls are provided in the annular groove. The gear disk is inserted into the annular groove, the annular groove limits the position of the gear disk, and the bottom of the gear disk abuts against the balls.

5. The automatic positioning and transfer device for helicopter propeller rings as described in claim 3, characterized in that, The receiving mechanism includes a mounting plate, a circular ring limiting component, and a data recognition component. The mounting plate is disposed on the top of the gear disk and connected to the gear disk. Both the mounting plate and the gear disk have hollow holes in their middle portions. The circular ring limiting component is disposed on the mounting plate and has a central hole that is coaxial with the hollow hole of the gear disk. The data recognition component is used to read the static posture of the circular ring on the support frame.

6. The helicopter propeller ring automatic positioning and receiving transfer device as described in claim 5, characterized in that, The circular limiting assembly includes an inner ring limiting member and an outer ring limiting member. The outer ring limiting member is sleeved on the inner ring limiting member. The thickness of the inner ring limiting member is greater than that of the outer ring limiting member. The upper and lower surfaces of the inner ring limiting member are provided with a plurality of first protrusions at intervals. The first protrusions are provided with first grooves. The mounting plate is provided with corresponding first protrusions. The first protrusions are inserted into the grooves of the first protrusions. Bolts pass through the first grooves and are threadedly connected to the first protrusions below. The outer ring limiting member is provided with a set of second protrusions on both the left and right sides. The bottom of the second protrusions of the outer ring limiting member is provided with corresponding second grooves. The mounting plate is provided with corresponding second protrusions. The second protrusions are inserted into the second grooves. Bolts pass through the second grooves and are threadedly connected to the second protrusions below.

7. The helicopter propeller ring automatic positioning and receiving transfer device as described in claim 6, characterized in that, A third protrusion is provided between each of two adjacent first protrusions, and the third protrusion is used to support the inner ring limiting member.

8. The automatic positioning and transfer device for helicopter propeller rings as described in claim 6, characterized in that, The data recognition component includes a mounting component, a first visual camera, a second visual camera, and a wide-angle ultrasonic ranging sensor. The mounting component is disposed in the central hole of the inner ring limiting component. The first visual camera is disposed on the mounting component and is coaxially arranged with the central hole. The second visual camera is disposed on a first protrusion of the mounting plate and passes through the inner ring limiting component. The wide-angle ultrasonic ranging sensor is disposed on the support frame and is positioned above the first and second visual cameras.

9. The automatic positioning and transfer device for helicopter propeller rings as described in claim 1, characterized in that, A base plate is provided below the support frame, and a set of guide rails is provided between the base plate and the support frame. The bottom of the support frame is slidably connected to the guide rails. A lead screw reciprocating machine is provided on the base plate. The two ends of the lead screw in the lead screw reciprocating machine abut against the front and rear ends of the support frame, respectively. The lead screw reciprocating machine can drive the support frame to move back and forth.

10. The automatic positioning and transfer device for helicopter propeller rings as described in claim 1, characterized in that, The support frame has abutment parts on both the left and right sides of the top. The abutment parts are arc-shaped plate structures and are used to support the ring.

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