Clamping device and method for grinding high-speed blade tips of rotors

Abstract

The clamping device comprises a device body, the device body comprises a core shaft, a blade assembly mounting position is formed on the circumferential side of the core shaft, the blade assembly mounting position is provided with an adapter shaft along one end of the core shaft, the other end of the core shaft is provided with a positioning shaft, and the core shaft extends out of the adapter shaft in the direction of one end of the core shaft; a first adjusting part and a second adjusting part are sequentially arranged on the coupling shaft in the direction far away from the positioning shaft; the first adjusting part can be matched with the adapter shaft so as to adjust the coaxiality and perpendicularity of the core shaft in the adapter shaft; the second adjusting part can act on the core shaft so that the core shaft can be fixed to the adapter shaft after the first adjusting part is adjusted. The coaxiality and perpendicularity of the grinding machine clamp can be rapidly and accurately adjusted, then the machining precision of the high-speed blade tip of the rotor is improved, the cost and efficiency of the grinding machine clamp are controlled, the high-speed grinding machining quality of the blade tip of the blade and the production cycle of engine assembly are guaranteed, and certain applicability is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of high-speed blade tip grinding of an engine rotor, and in particular relates to a clamping device and a method for high-speed blade tip grinding of a rotor. Background Art

[0002] At present, for some aircraft engines, when the rotor parts are balanced and the high-speed blade tip assembly is ground, the rotor parts are first installed on the grinding machine, and then the whole is installed on the balancing machine and the high-speed grinder. Before processing, the rotor parts need to be aligned. The current conventional processing method is to ensure the benchmark through the processing accuracy and matching size of the grinder fixture, such as Figure 4 As shown. In this way, if the machining accuracy of the core shaft of the grinder fixture is insufficient or it is worn after long-term use, it is very likely that the benchmark of the grinder fixture cannot be guaranteed, which makes the parts prone to static surface runout and end surface runout, resulting in the balance of the engine rotor components and the high-speed blade tip combination grinding accuracy cannot be guaranteed, affecting product quality. The machining accuracy of the grinder fixture is difficult to guarantee at 5 / 1000. Generally, interference fit positioning is used to improve the accuracy. The wear of interference fit disassembly during use cannot be avoided. At present, the disadvantage of the inability to adjust the benchmark of the grinder fixture is obvious. Therefore, how to ensure the benchmark of the grinder fixture under this condition and ensure the grinding accuracy of the blade high-speed tip combination is an urgent problem to be solved. In summary, in the current grinder fixture, due to the wear of interference fit disassembly, it may cause the parts to easily produce static surface runout and end surface runout, resulting in the inability to guarantee the grinding accuracy of the parts, affecting the quality of the product. Summary of the invention

[0003] The present invention provides a clamping device and method for high-speed rotor blade tip grinding, aiming to solve the problem that in the current grinding machine fixture, due to the wear of interference fit during disassembly and assembly, the parts are prone to static surface runout and end surface runout, resulting in the inability to ensure the grinding accuracy of the parts and affecting product quality.

[0004] In order to achieve the above object, the present invention adopts the following technical scheme: The present invention provides a clamping device for high-speed rotor blade tip grinding, comprising a device body, the device body can be installed with a blade assembly to be processed, when the device body clamps the blade assembly to be processed and the device body is installed on a high-speed blade tip grinder, the high-speed blade tip grinder can grind the blade tip of the blade assembly to be processed; wherein: The device body includes a core shaft, and a blade assembly installation position is formed on the core shaft along its circumferential side. The blade assembly installation position is provided with a transfer shaft at one end of the core shaft and a positioning shaft at the other end. The core shaft extends out of the transfer shaft along the direction of one end thereof. The adapter shaft is provided with a first adjustment part and a second adjustment part in sequence in the direction away from the positioning shaft; the first adjustment part can cooperate with the adapter shaft to adjust the coaxiality and verticality of the core shaft in the adapter shaft; the second adjustment part can act on the core shaft to fix the core shaft to the adapter shaft after the first adjustment part is adjusted.

[0005] In some embodiments, the first adjustment portion includes a plurality of adjustment components circumferentially arranged on the adapter shaft, each adjustment component radially penetrates the adapter shaft, and each adjustment component can abut against or detach from the core shaft in the radial direction of the core shaft.

[0006] Furthermore, each adjustment assembly includes an adjusting bolt, which is threadedly connected to the adapter shaft, one end of the adjusting bolt extends out of the adapter shaft, and the other end is connected to an adjusting piece that can act on the core shaft.

[0007] Furthermore, the number of adjustment components is three, and the three adjustment components are evenly arranged.

[0008] Furthermore, the adjusting member is configured as an arc-shaped structure, and the inner arc surface of the arc-shaped structure faces the core shaft, so that after abutment, the adjusting member and the core shaft can form a contact surface.

[0009] In some embodiments, the second adjustment portion includes a pad assembly sleeved on the core shaft and a fixing nut threadedly engaged with one end of the core shaft, and the fixing nut can make the pad assembly abut against or disengage from the adapter shaft along the axial direction of the core shaft.

[0010] Furthermore, the spacer assembly includes a first washer and a second washer which are sequentially arranged along the axial direction of the core shaft, and the first washer is close to the fixing nut.

[0011] Furthermore, the first gasket and the second gasket form a convex structure and a concave structure on opposite surfaces thereof, respectively, and the shapes of the convex structure and the concave structure match each other.

[0012] In some embodiments, the first adjustment portion and the second adjustment portion are detachably disposed on the adapter shaft.

[0013] The present invention also provides a clamping method for quickly adjusting a rotor high-speed blade tip grinding reference, comprising the following steps: S1, installing the processed blade assembly on the mandrel through the blade assembly installation position; S2. Install and fix the adapter shaft and the positioning shaft on the mandrel, and tighten the first adjustment part and the second adjustment part; install the device body on the balancing machine, balance the device body, and after the balancing is completed, remove the device body from the balancing machine and install it on the high-speed blade tip grinder; S3. Perform a runout test. If the processing requirements are not met, loosen the second adjustment part, adjust the first adjustment part so that the mandrel meets the coaxiality and verticality of the combined processing, and then tighten the second adjustment part; after the high-speed blade tip grinder aligns the device body, complete the clamping of the blade assembly to be processed.

[0014] Compared with the prior art, the clamping device and method for high-speed rotor blade tip grinding of the present invention have the following beneficial effects: The present invention discloses a clamping device for high-speed rotor blade tip grinding, comprising a device body, wherein the device body can be installed with a blade assembly to be processed. When the device body is clamped with the blade assembly to be processed and the device body is installed on a high-speed blade tip grinder, the high-speed blade tip grinder can grind the blade tip of the blade assembly to be processed; wherein: the device body comprises a core shaft, a blade assembly mounting position is formed on the core shaft along its circumferential side, the blade assembly mounting position is provided with an adapter shaft at one end along the core shaft and a positioning shaft at the other end, and the core shaft extends out of the adapter shaft along the direction of its one end; the adapter shaft is provided with a first adjustment portion and a second adjustment portion in sequence in a direction away from the positioning shaft; the first adjustment portion can cooperate with the adapter shaft so as to adjust the coaxiality and verticality of the core shaft in the adapter shaft; the second adjustment portion can act on the core shaft so as to fix the core shaft to the adapter shaft after the first adjustment portion is adjusted. Based on the above, the present invention combines the characteristics of high-speed blade tip grinding equipment clamping, and performs centering and stabilization through the first adjustment part and the second adjustment part, which effectively avoids the static surface runout and end surface runout of the rotor high-speed blade tip. When the machining accuracy of the grinder fixture core shaft is insufficient or the wear accuracy of the grinder fixture core shaft due to repeated disassembly and assembly cannot meet the machining requirements, the coaxiality and verticality of the grinder fixture can be adjusted relatively quickly and accurately, so that the tooling meets the blade grinding requirements, thereby improving the machining accuracy of the rotor high-speed blade tip, reducing the rework time of the grinder fixture, and controlling the cost and efficiency, ensuring the quality of the high-speed grinding of the blade tip and the production cycle of the engine assembly, and having better practical significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings in the specification are used to provide further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0016] Figure 1 It is a structural schematic diagram of a clamping device in a clamping device and method for high-speed rotor blade tip grinding of the present invention; Figure 2 It is a partial structural schematic diagram of a clamping device in a clamping device and method for high-speed rotor blade tip grinding of the present invention; Figure 3 It is a schematic diagram of a state in which a blade assembly is installed in a clamping device and method for high-speed rotor blade tip grinding according to the present invention; Figure 4 The present invention is a schematic structural diagram of a grinder fixture in the prior art of a clamping device and method for high-speed rotor blade tip grinding.

[0017] Among them, 1. core shaft, 2. blade assembly installation position, 3. adapter shaft, 4. positioning shaft, 5. adjusting bolt, 6. adjusting part, 7. fixing nut, 8. first washer, 9. second washer, 10. blade assembly. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] How to ensure the datum of the grinding machine fixture, ensure the balance of the rotor components and the grinding accuracy of the blade high-speed tip combination, and avoid the disadvantages of being unable to find the datum due to insufficient fixture processing accuracy and repeated disassembly and assembly wear.

[0025] like Figure 1 and Figure 2 As shown, the present invention provides a clamping device for high-speed rotor blade tip grinding, comprising a device body, the device body can be installed with a blade assembly to be processed, when the device body clamps the blade assembly to be processed and the device body is installed on a high-speed blade tip grinder, the high-speed blade tip grinder can grind the blade tip of the blade assembly to be processed; wherein: The device body comprises a core shaft 1, and a blade assembly installation position 2 is formed along the circumferential side of the core shaft 1. The blade assembly installation position 2 is provided with a transfer shaft 3 at one end along the core shaft 1 and a positioning shaft 4 at the other end. The core shaft 1 extends out of the transfer shaft 3 along the direction of one end thereof. The adapter shaft 3 is provided with a first adjustment part and a second adjustment part in sequence in the direction away from the positioning shaft 4; the first adjustment part can cooperate with the adapter shaft 3 to adjust the coaxiality and verticality of the core shaft 1 in the adapter shaft 3; the second adjustment part can act on the core shaft 1 to fix the core shaft 1 to the adapter shaft 3 after the first adjustment part is adjusted.

[0026] The clamping device for high-speed rotor blade tip grinding of the present invention can install the blade assembly to be processed and grind the blade tip through a high-speed blade tip grinder. A blade assembly mounting position 2 is provided on the core shaft 1 for installing the blade assembly to be processed. The adapter shaft 3 and the positioning shaft 4 are respectively arranged at both ends of the core shaft 1, and the adapter shaft 3 is also provided with a first adjustment part and a second adjustment part for adjusting and fixing the position of the core shaft 1. The present invention can achieve stable installation of the blade assembly to be processed and provide a reliable clamping basis for high-speed blade tip grinding. The present invention can conveniently adjust the coaxiality and verticality of the core shaft 1 through the first adjustment part and the second adjustment part on the adapter shaft 3 to ensure the processing accuracy and quality of the blade assembly 10. As an embodiment, the first adjustment part and the second adjustment part of the present invention are both detachably arranged on the adapter shaft 3. Thereby, the flexibility of the device body in the clamping and centering operation is improved.

[0027] In some embodiments, in the clamping device for high-speed rotor blade tip grinding of the present invention, the first adjustment portion includes a plurality of adjustment components arranged circumferentially on the adapter shaft 3, each of which can abut against or disengage from the core shaft 1 in the radial direction to achieve fine adjustment of the position of the core shaft 1. The circumferential arrangement and radial adjustment capability of the adjustment components of the present invention make the coaxiality and verticality adjustment of the core shaft 1 more accurate and flexible.

[0028] Furthermore, in specific working conditions, the number of adjustment components of the clamping device for high-speed rotor blade tip grinding of the present invention can be set to three, and the three adjustment components are evenly arranged in the circumference of the adapter shaft 3, thereby providing a more balanced adjustment force, which can be relatively stable when adjusting the core shaft 1.

[0029] Specifically, in the clamping device for high-speed rotor blade tip grinding of the present invention, the adjustment component can be selected as an adjusting bolt 5, the adjusting bolt 5 is threadedly connected to the adapter shaft 3, one end of the adjusting bolt 5 extends out of the adapter shaft 3, and the other end is connected to an adjusting member 6 that can act on the core shaft 1. In actual working conditions, the adjusting member 6 can be, but is not limited to, selected to be an arc-shaped structure, and the inner arc surface of the arc-shaped structure faces the core shaft 1, so that after abutment, the adjusting member 6 and the core shaft 1 can form a contact surface. The present invention designs the adjusting member 6 to be an arc-shaped structure, so that it can better fit the surface of the core shaft 1, increase the contact area, and thus improve the stability and accuracy of the adjusting member 6 in the centering operation.

[0030] In addition, in the clamping device for high-speed rotor blade tip grinding of the present invention, the second adjustment part includes a pad assembly sleeved on the core shaft 1 and a fixing nut 7 threadedly engaged with one end of the core shaft 1, and the fixing nut 7 can make the pad assembly abut against or disengage from the adapter shaft 3 along the axial direction of the core shaft 1. The pad assembly and the fixing nut of the present invention have a simple structure and are easy to operate, and can effectively fix the position of the core shaft 1 to ensure stability during the processing.

[0031] As a preferred embodiment, the pad assembly of the clamping device for high-speed rotor blade tip grinding includes a first washer 8 and a second washer 9 sequentially arranged along the axial direction of the core shaft 1, and the first washer 8 is close to the fixing nut 7. The present invention can increase the stability of the entire pad assembly in the centering operation and improve the fixing effect of the core shaft 1 by using the first washer 8 and the second washer 9 in combination.

[0032] As a further preferred embodiment, in the clamping device for high-speed rotor blade tip grinding of the present invention, the first washer 8 and the second washer 9 respectively form a convex structure and a concave structure on their opposite surfaces, and the shapes of the convex structure and the concave structure are adapted. The adaptation design of the convex structure and the concave structure adopted in the present invention can increase the contact area and stability between the pad block components, and can further improve the fixing effect of the core shaft 1.

[0033] The present invention also provides a clamping method for high-speed rotor blade tip grinding, the method comprising the following steps: like Figure 3 As shown, S1, installing the blade assembly 10 on the core shaft 1 through the blade assembly installation position 2; S2, install and fix the adapter shaft 3 and the positioning shaft 4 on the core shaft 1, and tighten the first adjustment part and the second adjustment part; install the device body on the balancing machine, balance the device body, and after the balancing is completed, remove the device body from the balancing machine and install it on the high-speed blade tip grinder; S3. Perform a runout test. If the machining requirements are not met, loosen the second adjustment part, adjust the first adjustment part, so that the mandrel 1 meets the coaxiality and verticality of the combined machining, and then tighten the second adjustment part; after the high-speed blade tip grinder aligns the device body, the clamping of the blade assembly to be processed is completed.

[0034] The clamping method of the present invention can ensure the stable installation and processing accuracy of the blade components to be processed. Through the balancing and runout detection steps, problems can be discovered and solved in time, the processing quality and efficiency can be improved, and a basis for subsequent high-speed blade tip processing can be provided.

[0035] The clamping device and method for high-speed rotor blade tip grinding of the present invention are further described in detail below through specific embodiments.

[0036] like Figure 1 As shown, in actual working conditions, it is necessary to process the clamping device of the rotor high-speed blade tip grinding of the present invention: according to the structural characteristics of the grinder fixture, a coaxial arc adjustment part 6 is processed, and it is fixed on the adapter shaft 3 with bolts evenly distributed circumferentially at three points, and a group of first washers 8 and second washers 9 with concave and convex spherical surfaces are processed at the top of the shaft, and the first washers 8 and the second washers 9 are installed on a screw coaxial with the core shaft 1.

[0037] Install the clamping device for high-speed rotor blade tip grinding of the present invention: install the blade assembly 10 on the shaft core 1 by cold installation, and then install the adapter shaft 3 and the positioning shaft 4 to fix the rotor blade tip grinding with the blade assembly 10, and then install the clamping device for high-speed rotor blade tip grinding with the blade assembly 10 on a balancing machine or a high-speed blade tip grinder.

[0038] Centering of the clamping device for high-speed blade tip grinding: After installation, if the coaxiality and verticality of the clamping device cannot meet the processing requirements through runout detection, first loosen the fixing nuts 7 on the first washer 8 and the second washer 9, so that the first washer 8 and the second washer 9 can slide to adapt to the changing angle of the mandrel 1 during the adjustment process. Then adjust the three adjustment bolts 5 evenly distributed circumferentially on the adapter shaft 3, adjust the corresponding adjustment parts 6 to make the mandrel 1 meet the coaxiality and verticality requirements of the combined processing, and finally tighten the fixing nuts 7 to further fix the shaft core 1 to ensure accuracy.

[0039] Balancing of the clamping device for high-speed blade tip grinding: Install the blade assembly 10 on the clamping device as required, and then install the clamping device as a whole on a balancing machine. Use the above method to align the clamping device, and then balance the clamping device to reduce the imbalance of the clamping device and eliminate the influence of the imbalance of the blade assembly 10 when the blade tip is ground on a high-speed grinder.

[0040] The clamping device for high-speed blade tip grinding performs high-speed blade tip grinding: the clamping device for high-speed blade tip grinding equipped with the blade assembly 10 is installed on the high-speed blade tip grinder as required, the high-speed blade tip grinder performs centering to ensure that the coaxiality and verticality of the blade assembly 10 meet the processing requirements, and then the blade tip of the blade assembly 10 is ground to make the diameter and blade tip runout of the blade tip meet the design requirements, thereby ensuring the subsequent assembly quality of the engine.

[0041] In summary, the present invention provides a clamping device and method for high-speed rotor blade tip grinding. The clamping device realizes high-precision and high-stability clamping of the blade assembly to be processed through reasonable structural design. Among them, the first adjustment part can accurately adjust the coaxiality and verticality of the core shaft in the adapter shaft through a plurality of adjustment components evenly arranged along the circumference, thereby ensuring the stability of the blade assembly during the grinding process. The adjustment component adopts the design of adjusting bolts and arc-shaped adjustment parts, making the adjustment process more flexible and accurate. The second adjustment part realizes reliable fixation of the core shaft through the cooperation of the pad assembly and the fixing nut, further ensuring the accuracy and stability of the grinding process. In addition, the clamping device has the advantages of simple structure, convenient operation, wide applicability, etc., which is convenient for maintenance and replacement of the device, effectively improves the efficiency and accuracy of the rotor high-speed blade tip grinding, and provides technical support for the processing of blade assemblies.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A clamping device for high-speed rotor blade tip grinding, characterized in that: The device comprises a device body, the device body can be installed with a blade assembly to be processed, and when the device body is clamped with the blade assembly to be processed and the device body is installed on a high-speed blade tip grinder, the high-speed blade tip grinder can grind the blade tip of the blade assembly to be processed; wherein: The device body comprises a core shaft (1), the core shaft (1) being provided with a blade assembly mounting position (2) along its circumferential side, the blade assembly mounting position (2) being provided with a transfer shaft (3) at one end along the core shaft (1) and a positioning shaft (4) at the other end, the core shaft (1) extending out from the transfer shaft (3) along the direction of one end thereof; The adapter shaft (3) is provided with a first adjustment portion and a second adjustment portion in sequence in a direction away from the positioning shaft (4); the first adjustment portion can cooperate with the adapter shaft (3) so as to adjust the coaxiality and verticality of the core shaft (1) in the adapter shaft (3); and the second adjustment portion can act on the core shaft (1) so as to fix the core shaft (1) to the adapter shaft (3) after the first adjustment portion is adjusted.

2. The clamping device for high-speed rotor blade tip grinding according to claim 1, characterized in that: The first adjustment portion comprises a plurality of adjustment components arranged circumferentially on the adapter shaft (3), each of the adjustment components radially penetrating the adapter shaft (3), and each of the adjustment components being capable of abutting against or disengaging from the core shaft (1) in the radial direction of the core shaft (1).

3. The clamping device for high-speed rotor blade tip grinding according to claim 2, characterized in that: Each of the adjustment components comprises an adjustment bolt (5), the adjustment bolt (5) being threadedly connected to the adapter shaft (3), one end of the adjustment bolt (5) extending outside the adapter shaft (3), and the other end of the adjustment bolt (5) being connected to an adjustment member (6) capable of acting on the core shaft (1).

4. The clamping device for high-speed rotor blade tip grinding according to claim 2, characterized in that: The number of the adjustment components is three, and the three adjustment components are evenly arranged.

5. The clamping device for high-speed rotor blade tip grinding according to claim 3, characterized in that: The adjusting member (6) is configured as an arc-shaped structure, and the inner arc surface of the arc-shaped structure faces the core shaft (1), so that after abutment, the adjusting member (6) and the core shaft (1) can form a contact surface.

6. The clamping device for high-speed rotor blade tip grinding according to claim 1, characterized in that: The second adjustment portion comprises a cushion block assembly sleeved on the core shaft (1) and a fixing nut (7) threadedly engaged with one end of the core shaft (1); the fixing nut (7) is capable of causing the cushion block assembly to abut against or be disengaged from the adapter shaft (3) along the axial direction of the core shaft (1).

7. The clamping device for high-speed rotor blade tip grinding according to claim 6, characterized in that: The spacer assembly comprises a first washer (8) and a second washer (9) which are arranged in sequence along the axial direction of the core shaft (1), and the first washer (8) is close to the fixing nut (7).

8. The clamping device for high-speed rotor blade tip grinding according to claim 7, characterized in that: The first gasket (8) and the second gasket (9) respectively form a convex structure and a concave structure on their opposite surfaces, and the shapes of the convex structure and the concave structure are adapted.

9. The clamping device for high-speed rotor blade tip grinding according to claim 1, characterized in that: The first adjustment portion and the second adjustment portion are detachably arranged on the adapter shaft (3).

10. A clamping method for the clamping device for high-speed rotor blade tip grinding according to any one of claims 1 to 9, characterized in that: The steps include: S1, installing the blade assembly to be processed on the core shaft (1) through the blade assembly installation position (2); S2, installing and fixing the adapter shaft (3) and the positioning shaft (4) on the core shaft (1), and tightening the first adjustment part and the second adjustment part; installing the device body on a balancing machine, balancing the device body, and after the balancing is completed, removing the device body from the balancing machine and installing it on a high-speed blade tip grinder; S3. Perform a runout test. If the machining requirements are not met, loosen the second adjustment part, adjust the first adjustment part so that the mandrel (1) meets the coaxiality and verticality of the combined machining, and then tighten the second adjustment part. After the high-speed blade tip grinder aligns the device body, the clamping of the blade assembly to be machined is completed.

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