Rotor blade machining chatter suppression device

Abstract

This invention provides a rotor blade processing chatter suppression device. The device includes positioning rings, each with at least one axial end face having a positioning groove. Multiple positioning grooves are arranged at intervals along the circumference of the positioning rings. The positioning rings are arranged in pairs. One positioning ring's positioning groove is used to embed the air intake end of the rotor blade, and the other positioning ring's positioning groove is used to embed the exhaust end of the rotor blade. This rotor blade processing chatter suppression device uses paired positioning rings to embed one or more stage rotor blades of an engine into corresponding positioning grooves of one or more pairs of positioning rings, thereby achieving fixed positioning of the rotor blades. It has good overall rigidity and stability, and is easy to assemble and disassemble.

Description

Technical Field

[0001] The invention relates to the field of rotor blade processing, and specifically to a rotor blade processing vibration suppression device. Background Technology

[0002] Because engine rotor blades are thin and have low rigidity, they are prone to vibration during machining, leading to surface chatter marks, dimensional errors, and even scrapping due to plastic deformation. Therefore, it is necessary to fix and limit the rotor blades during machining. Related technologies use three methods to fix and limit rotor blades: wooden wedges, clay wrapping, and rope binding. However, wooden wedges are time-consuming to prepare and install / disassemble, and the wedges are prone to wear and aging, resulting in errors. Clay wrapping provides poor fixing force and clay is difficult to clean and leaves residue. Rope binding is affected by the binding effect, resulting in large and uncontrollable errors. Therefore, there is currently no effective device to suppress rotor blade vibration. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a rotor blade processing vibration suppression device. This device uses paired positioning rings to embed one or more stage rotor blades of an engine into positioning grooves corresponding to one or more pairs of positioning rings, thereby achieving fixed positioning of the rotor blades. It has good overall fixing rigidity and stability, and is easy to assemble and disassemble.

[0004] The rotor blade processing chatter suppression device of this invention includes a positioning ring. At least one axial end face of the positioning ring is provided with a positioning groove. There are multiple positioning grooves, which are arranged at intervals along the circumference of the positioning ring. The positioning rings are arranged in pairs. The positioning groove of one positioning ring is used to embed the air inlet end of the rotor blade, and the positioning groove of the other positioning ring is used to embed the exhaust end of the rotor blade.

[0005] The rotor blade processing chatter suppression device of this invention uses a pair of positioning rings with multiple positioning slots. The positioning slot of one positioning ring is used to embed the air inlet end of the rotor blade, and the positioning slot of the other positioning ring is used to embed the exhaust end of the rotor blade. The pair of positioning rings can embed one or more stages of rotor blades into the positioning slots corresponding to one or more pairs of positioning rings, thereby achieving fixed positioning of the rotor blades. It has good overall fixed rigidity and stability, and is easy to assemble and disassemble.

[0006] In some embodiments, the positioning groove extends radially through the positioning ring.

[0007] In some embodiments, the positioning ring includes a split positioning ring and / or an integral positioning ring, wherein the split positioning ring includes at least two arc-shaped segments, and the at least two arc-shaped segments are connected sequentially along the circumference of the split positioning ring.

[0008] In some embodiments, the number of arc segments of the split positioning ring is 2 to 4.

[0009] In some embodiments, two adjacent arcuate segments are detachably snapped together.

[0010] In some embodiments, there are at least four positioning rings, which are coaxially arranged and spaced apart along the axial direction of the positioning rings. The at least four positioning rings include the split positioning rings and the integral positioning rings. The positioning ring located at at least one end of the arrangement direction of the four positioning rings is the integral positioning ring, and the remaining positioning rings are the split positioning rings.

[0011] In some embodiments, the rotor blade machining chatter suppression device further includes a connector that connects two paired positioning rings to define the relative positions of the two positioning rings in the axial direction of the positioning rings.

[0012] In some embodiments, the axial end face of the positioning ring is provided with a connecting hole, the connecting hole being located between two connected positioning grooves, and at least a portion of the connector passing through the connecting holes of the two paired positioning rings to connect the two positioning rings.

[0013] In some embodiments, the positioning ring has multiple connecting holes, which are arranged at intervals along the circumference of the positioning ring. In two positioning rings arranged in pairs, the multiple connecting holes of one positioning ring correspond one-to-one with the multiple connecting holes of the other positioning ring. There are multiple connectors, and the corresponding connecting holes are provided with corresponding connectors.

[0014] In some embodiments, the positioning ring includes a non-metallic ring body and a metallic ring body, wherein the positioning groove is provided on one axial end face of the non-metallic ring body, and the metallic ring body is provided on the other axial end face of the non-metallic ring body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the rotor blade processing chatter suppression device according to an embodiment of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the split positioning ring in an embodiment of the present invention;

[0017] Figure 3This is a schematic diagram of the rotor blade processing chatter suppression device according to an embodiment of the present invention. Figure 2 ;

[0018] Figure 4 This is a schematic diagram of the rotor blade processing chatter suppression device according to an embodiment of the present invention. Figure 3 ;

[0019] Figure 5 This is a schematic diagram of the positioning ring in an embodiment of the present invention.

[0020] Figure label:

[0021] 1. Positioning ring; 11. Positioning groove; 12. Split positioning ring; 121. Arc segment; 13. Integrated positioning ring; 14. Connecting hole; 15. Non-metallic ring body; 16. Metallic ring body; 2. Rotor blade; 3. Connecting component. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0023] The following is for reference. Figures 1-4 A rotor blade machining chatter suppression device according to an embodiment of the present invention is described.

[0024] like Figures 1-4 As shown, the rotor blade processing chatter suppression device of this embodiment includes a positioning ring 1. At least one axial end face of the positioning ring 1 is provided with a positioning groove 11. There are multiple positioning grooves 11, which are arranged at intervals along the circumference of the positioning ring 1. The positioning rings 1 are arranged in pairs. The positioning groove 11 of one positioning ring 1 is used to embed the air inlet end of the rotor blade 2, and the positioning groove 11 of the other positioning ring 1 is used to embed the exhaust end of the rotor blade 2.

[0025] like Figure 1 As shown, the positioning ring 1 is preferably a circular ring. One axial end face of the positioning ring 1 has multiple positioning grooves 11, which are arranged at intervals along the circumference of the positioning ring 1. The positioning rings 1 are arranged in pairs; preferably, there are two positioning rings 1 located at... Figure 1 The right end face of the positioning ring 1 on the left side has multiple positioning grooves 11, located in Figure 1 The left end face of the positioning ring 1 on the right side has multiple positioning grooves 11, and the multiple positioning grooves 11 of the two positioning rings 1 are arranged in a one-to-one correspondence.

[0026] The engine rotor has multiple rotor blades 2 arranged at intervals in the circumferential direction, and the axial direction of the engine rotor is left and right. Figure 1 The left end of rotor blade 2 shown is the intake end, and the right end of rotor blade 2 is the exhaust end. Figure 1 The left-side positioning ring 1 is moved to the left end of the engine rotor, and the air intake ends of multiple rotor blades 2 are correspondingly embedded in the multiple positioning grooves 11 of the left-side positioning ring 1. Preferably, the positioning grooves 11 of the left-side positioning ring 1 are contour grooves that mate with the air intake ends of the rotor blades 2. Figure 1 The right-side positioning ring 1 moves to the right end of the engine rotor, and the exhaust ends of multiple rotor blades 2 are correspondingly embedded in the multiple positioning grooves 11 of the right-side positioning ring 1. Preferably, the positioning grooves 11 of the right-side positioning ring 1 are contour grooves that mate with the exhaust ends of the rotor blades 2. The two positioning rings 1 can abut or have a certain gap; preferably, there is a certain gap between the two positioning rings 1. Thus, the positioning grooves 11 of the two positioning rings 1 fix and limit the multiple rotor blades 2 to prevent the rotor blades 2 from vibrating.

[0027] The rotor blade processing chatter suppression device of this invention includes a positioning ring. At least one axial end face of the positioning ring has a positioning groove. There are multiple positioning grooves, which are arranged at intervals along the circumference of the positioning ring. The positioning rings are arranged in pairs. The positioning groove of one positioning ring is used to embed the air inlet end of the rotor blade, and the positioning groove of the other positioning ring is used to embed the exhaust end of the rotor blade. The pair of positioning rings can embed one or more stages of rotor blades into the positioning grooves corresponding to one or more pairs of positioning rings, thereby achieving fixed positioning of the rotor blades. It has good overall fixed rigidity and stability, and is easy to assemble and disassemble.

[0028] In some embodiments, the positioning groove 11 extends radially through the positioning ring 1.

[0029] like Figure 1 and Figure 3 As shown, the positioning groove 11 passes through the positioning ring 1 radially. When the rotor blade 2 is embedded in the positioning groove 11 of the two positioning rings 1, the impeller is located in the space formed by the positioning rings 1. The rotor blade 2 extends outward radially along the impeller and extends outward through the positioning groove 11 to the outside of the positioning ring 1. In other words, the outer end of the rotor blade 2 extends outward from the outer circumferential surface of the positioning ring 1 so that the outer end of the rotor blade 2 can be processed, for example, by grinding.

[0030] In some embodiments, the positioning ring 1 includes a split positioning ring 12 and / or an integral positioning ring 13. The split positioning ring 12 includes at least two arcuate segments 121, which are connected sequentially along the circumference of the split positioning ring 12.

[0031] like Figures 1-3As shown, the positioning ring 1 includes a split positioning ring 12 and / or an integral positioning ring 13. The integral positioning ring 13 is an integral structure. The split positioning ring 12 is composed of at least two arc-shaped segments 121. The at least two arc-shaped segments 121 are connected sequentially along the circumference of the split positioning ring 12 to form the split positioning ring 12. Each arc-shaped segment 121 has a positioning groove 11, and the positioning groove 11 is not located at the circumferential edge of the arc-shaped segment 121. In other words, the positioning groove 11 on the arc-shaped segment 121 is located between the edges of the arc-shaped segment 121 at both ends in the circumferential direction.

[0032] When the position of the rotor blade 2 of the engine rotor is convenient for installing the integrated positioning ring 13, it is preferable to use the integrated positioning ring 13 to fix and limit the rotor blade 2. In other words, both ends of the rotor blade 2 are integrated positioning rings 13.

[0033] When the position of the rotor blade 2 of the engine rotor is not convenient for installing the integrated positioning ring 13 or there is interference, the rotor blade 2 is positioned by the split positioning ring 12, or by both the split positioning ring 12 and the integrated positioning ring 13. For example, both ends of the rotor blade 2 are split positioning rings 12, or one end of the rotor blade 2 is an integrated positioning ring 13 and the other end is a split positioning ring 12.

[0034] In some embodiments, there are at least four positioning rings 1, which are coaxially arranged and spaced apart along the axial direction of the positioning rings 1. The at least four positioning rings 1 include separate positioning rings 12 and integral positioning rings 13. The positioning ring 1 located at at least one end in the arrangement direction of the four positioning rings 1 is an integral positioning ring 13, and the remaining positioning rings 1 are separate positioning rings 12.

[0035] like Figure 4As shown, the engine rotor has three stages of rotor blades 2 arranged at intervals along its axial direction. Each stage of rotor blades 2 has multiple rotor blades 2 arranged at intervals along the circumference of the engine rotor. Six positioning rings 1 are arranged sequentially along the axial direction of the engine rotor. The positioning rings 1 at both ends of the axial direction are integral positioning rings 13, and the four positioning rings 1 between the two integral positioning rings 13 are split positioning rings 12. The positioning grooves 11 of the first and second positioning rings 1 along the axial direction of the engine rotor are arranged opposite each other to fix and limit the first stage rotor blades 2. The positioning grooves 11 of the third and fourth positioning rings 1 are arranged opposite each other to fix and limit the second stage rotor blades 2. The positioning grooves 11 of the fifth and sixth positioning rings 1 are arranged opposite each other to fix and limit the third stage rotor blades 2. In other words, the first stage rotor blades 2 and the third stage rotor blades 2 are both fixed and limited by the corresponding integral positioning rings 13 and split positioning rings 12, and the second stage rotor blades 2 are fixed and limited by the corresponding two split positioning rings 12. Thus, the problem that the integrated positioning ring 13 cannot move between the two-stage rotor blades 2 is avoided by using four separate positioning rings 12, ensuring that all rows of rotor blades 2 on the engine rotor can be fixed and limited.

[0036] In some embodiments, the number of arc segments 121 of the split positioning ring 12 is 2 to 4.

[0037] Specifically, the split positioning ring 12 is composed of 2 to 4 arc-shaped segments 121. When the rotor blade 2 is a straight blade or a near-straight blade, the split positioning ring 12 is preferably composed of 2 arc-shaped segments 121. When the rotor blade 2 is a twisted blade, and the number of rotor blades 2 arranged at intervals along the rotor circumference is greater than or equal to 9 and less than 15, the split positioning ring 12 is preferably composed of 3 arc-shaped segments 121. When the rotor blade 2 is a twisted blade, and the number of rotor blades 2 arranged at intervals along the rotor circumference is greater than or equal to 15, the split positioning ring 12 is preferably composed of 4 arc-shaped segments 121.

[0038] In some embodiments, two adjacent arc segments 121 are detachably snapped together.

[0039] Specifically, two adjacent arc-shaped segments 121 are arranged opposite each other so that their two end faces can be detachably snapped together when forming the split positioning ring 12. Preferably, both circumferential end faces of the arc-shaped segments 121 have snap-fit ​​bosses and snap-fit ​​grooves. The snap-fit ​​bosses and snap-fit ​​grooves are arranged sequentially along the axial direction of the arc-shaped segments 121, and both snap-fit ​​bosses and snap-fit ​​grooves are strips extending radially along the arc-shaped segments 121. When the two arc-shaped segments 121 are connected, the snap-fit ​​boss of one arc-shaped segment 121 snaps into the snap-fit ​​groove on the corresponding circumferential end face of the other arc-shaped segment 121, and the snap-fit ​​groove of one arc-shaped segment 121 simultaneously snaps into the snap-fit ​​boss on the corresponding circumferential end face of the other arc-shaped segment 121, so that the two arc-shaped segments 121 are snapped together and can be separated after the rotor blades 2 are processed.

[0040] It is understood that the two adjacent arc segments are not limited to being detachably snapped together; in other embodiments, the two adjacent arc segments are abutted together.

[0041] In some embodiments, the rotor blade processing chatter suppression device of the present invention further includes a connector 3, which connects two positioning rings 1 arranged in pairs to define the relative positions of the two positioning rings 1 in the axial direction of the positioning rings 1.

[0042] Specifically, in order to prevent the positioning ring 1 from moving along the axial direction of the engine rotor or even detaching from the rotor blade 2 during the machining of the rotor blade 2, the two positioning rings 1 that are set in pairs are connected by the connector 3, so that the relative position of the two positioning rings 1 in the axial direction of the positioning ring 1 is limited by the connector 3, and the two positioning rings 1 are fixed on the rotor blade 2.

[0043] In some embodiments, the axial end face of the positioning ring 1 is provided with a connecting hole 14, the connecting hole 14 is located between two connected positioning grooves 11, and at least part of the connector 3 passes through the connecting hole 14 of the two paired positioning rings 1 to connect the two positioning rings 1.

[0044] like Figure 3 and Figure 4As shown, the axial end face of the positioning ring 1 is provided with a connecting hole 14 that penetrates the positioning ring 1. The connecting hole 14 extends along the axial direction of the positioning ring 1 and is inclined. The inclination direction and angle are set according to the inclination direction and angle of the rotor blade 2. The connecting hole 14 is located between two connected positioning grooves 11 to avoid interference between the connecting member 3 and the rotor blade 2. At least a portion of the connecting member 3 passes through the connecting holes 14 of the two paired positioning rings 1 to connect the two positioning rings 1. Preferably, the connecting member 3 includes a bolt and a nut. The bolt passes through the connecting holes 14 of the two positioning rings 1 in sequence. The head of the bolt abuts against one of the positioning rings 1. The nut is located on the bolt shank and abuts against the other positioning ring 1 to fix the two positioning rings 1 onto the rotor blade 2. A torque wrench is used when installing the bolt. The torque of the torque wrench is 0.5 N·m-5 N·m, so as to adjust the bolt tightening force by adjusting the torque wrench, thereby achieving the purpose of controlling the deformation of the rotor blade 2.

[0045] It is understood that the connector is not limited to bolts and nuts. In other embodiments, the connector includes a connecting rod and pins. Both ends of the connecting rod are provided with pin holes. The connecting rod passes through the connecting holes of the two positioning rings in sequence. The two pins are inserted into the two pin holes one to one, so that the two positioning rings are fixedly limited between the two pins.

[0046] It is understood that the positioning ring is not limited to having a connecting hole. In other embodiments, the connector is a U-shaped limiting plate, and the two positioning rings are inserted into the U-shaped groove. In this case, the positioning ring does not need to be provided with a connecting hole.

[0047] In some embodiments, the positioning ring 1 has multiple connecting holes 14, which are arranged at intervals along the circumference of the positioning ring 1. In two positioning rings 1 arranged in pairs, the multiple connecting holes 14 of one positioning ring 1 correspond one-to-one with the multiple connecting holes 14 of the other positioning ring 1. There are multiple connectors 3, and the corresponding connecting holes 14 are provided with corresponding connectors 3.

[0048] like Figure 3 and Figure 4 As shown, the positioning ring 1 is provided with multiple connecting holes 14, which are arranged at intervals along the circumference of the positioning ring 1. In the two positioning rings 1 arranged in pairs, the multiple connecting holes 14 of one positioning ring 1 correspond one-to-one with the multiple connecting holes 14 of the other positioning ring 1. There are multiple connecting pieces 3, and the connecting holes 14 of one positioning ring 1 and the corresponding connecting holes 14 of the other positioning ring 1 are provided with corresponding connecting pieces 3.

[0049] Preferably, the integrated positioning ring 13 is provided with at least three connecting holes 14, and each arc segment 121 of the split positioning ring 12 is provided with at least two connecting holes 14, so as to ensure the connection force between the two positioning rings 1 set in pairs, thereby avoiding deformation of the rotor blades 2.

[0050] In some embodiments, the positioning ring 1 includes a non-metallic ring body 15 and a metallic ring body 16. One axial end face of the non-metallic ring body 15 is provided with a positioning groove 11, and the other axial end face of the non-metallic ring body 15 is provided with a metallic ring body 16.

[0051] like Figure 5 As shown, the positioning ring 1 includes a non-metallic ring body 15 and a metallic ring body 16. One axial end face of the metallic ring body 15 is provided with a positioning groove 11, and the other axial end face of the non-metallic ring body 15 is provided with a metallic ring body 16. The connecting hole 14 is divided into two sections, one section is provided on the non-metallic ring body 15, and the other section is provided on the metallic ring body 16. Preferably, in the projection plane orthogonal to the axial direction of the positioning ring 1, the projection of the non-metallic ring body 15 and the projection of the metallic ring body 16 are consistent.

[0052] Since the positioning groove 11 is a contoured groove that mates with the rotor blade 2, and the rotor blade 2 has a relatively complex profile, the positioning groove 11 is difficult to process. In this embodiment of the invention, a non-metallic ring 15 is preferably manufactured using a resin material and a precision 3D printing device or a high-precision injection molding device to ensure that the positioning groove 11 meets the precision requirements. A metal ring 16 is then attached to the axial end face of the non-metallic ring 15 to improve the overall rigidity and structural strength of the positioning ring 1. Preferably, the metal ring 16 is bonded to the non-metallic ring 15. The material of the non-metallic ring 15 is preferably epoxy resin, photosensitive resin, etc., and more preferably photosensitive resin manufactured using SLA photopolymerization technology. The metal ring 16 is preferably stainless steel.

[0053] When the positioning ring 1 adopts a split positioning ring 12, the arc segment 121 of the split positioning ring 12 includes a non-metallic arc segment and a metallic arc segment. Multiple non-metallic arc segments are connected to form a non-metallic ring body 15, and multiple metallic arc segments are connected to form a metallic ring body 16.

[0054] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not 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 limiting this invention.

[0055] Furthermore, the terms "first" and "second" are used only for distinction and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0058] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A device for suppressing vibration during rotor blade processing, characterized in that, The system includes a positioning ring (1), at least one axial end face of which is provided with a positioning groove (11). There are multiple positioning grooves (11), which are arranged at intervals along the circumference of the positioning ring (1). The positioning rings (1) are arranged in pairs. The positioning groove (11) of one positioning ring (1) is used to embed the air inlet end of the rotor blade (2), and the positioning groove (11) of the other positioning ring (1) is used to embed the exhaust end of the rotor blade (2). The positioning ring (1) includes a split positioning ring (12) and / or an integral positioning ring (13). The split positioning ring (12) includes at least two arc segments (121), and the at least two arc segments (121) are connected sequentially along the circumference of the split positioning ring (12).

2. The rotor blade machining chatter suppression device according to claim 1, characterized in that, The positioning groove (11) passes through the positioning ring (1) radially.

3. The rotor blade machining chatter suppression device according to claim 1, characterized in that, The number of arc segments (121) of the split positioning ring (12) is 2 to 4.

4. The rotor blade machining chatter suppression device according to claim 1, characterized in that, The two adjacent arc segments (121) are detachably snapped together.

5. The rotor blade machining chatter suppression device according to claim 1, characterized in that, The positioning rings (1) are at least four, and the at least four positioning rings (1) are coaxially arranged and spaced apart along the axial direction of the positioning rings (1). The at least four positioning rings (1) include the split positioning rings (12) and the integrated positioning rings (13). The positioning ring (1) located at at least one end of the arrangement direction of the four positioning rings (1) is the integrated positioning ring (13), and the remaining positioning rings (1) are the split positioning rings (12).

6. The rotor blade machining chatter suppression device according to claim 1, characterized in that, It also includes a connector (3) that connects two of the positioning rings (1) arranged in pairs to define the relative positions of the two positioning rings (1) in the axial direction of the positioning ring (1).

7. The rotor blade machining chatter suppression device according to claim 6, characterized in that, The axial end face of the positioning ring (1) is provided with a connecting hole (14), the connecting hole (14) is located between two connected positioning grooves (11), and at least part of the connector (3) passes through the connecting hole (14) of the two paired positioning rings (1) to connect the two positioning rings (1).

8. The rotor blade machining chatter suppression device according to claim 7, characterized in that, The positioning ring (1) has multiple connecting holes (14), which are arranged at intervals along the circumference of the positioning ring (1). In the two positioning rings (1) that are arranged in pairs, the multiple connecting holes (14) of one positioning ring (1) correspond one-to-one with the multiple connecting holes (14) of the other positioning ring (1). The connector (3) has multiple components, and the corresponding connecting holes (14) are provided with corresponding connectors (3).

9. The rotor blade machining chatter suppression device according to claim 1, characterized in that, The positioning ring (1) includes a non-metallic ring body (15) and a metallic ring body (16). The positioning groove (11) is provided on one axial end face of the non-metallic ring body (15), and the metallic ring body (16) is provided on the other axial end face of the non-metallic ring body (15).

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