Miniaturized integrated dither wheel in a high-precision laser gyroscope and manufacturing method

Abstract

The application relates to the field of complex metal functional part processing, in particular to a miniaturized integrated dither wheel in a high-precision laser gyroscope and a manufacturing method. The dither wheel comprises a geometric center shaft and an outer edge integrated sleeve (7), and the two are connected through a plurality of driving spokes (2) uniformly distributed along the geometric center shaft; the fixed spokes are uniformly distributed along the geometric center shaft, and a certain gap exists between the fixed spokes and the outer edge integrated sleeve (7); the driving spokes (2) and the fixed spokes are alternately distributed; wherein, every two adjacent driving spokes and the outer edge integrated sleeve divide the integrated dither wheel into a plurality of cavities, and the fixed spokes are centrally distributed in the cavities. The embodiment of the application selects a Ni32Co4Nb alloy material and a suitable manufacturing process, so that the miniaturized integrated dither wheel meets the requirements of high-precision size, geometric and position tolerances, strength and fatigue performance, and is applied to the high-precision laser gyroscope.

Description

Technical Field

[0001] This invention relates to the field of complex metal functional component processing, and in particular to a miniaturized integrated jitter wheel for a high-precision laser gyroscope and its manufacturing method. Background Technology

[0002] Due to backscattering from the reflectors, laser gyroscopes inherently suffer from a latch-up effect, resulting in no signal output at low speeds. Frequency shifting techniques must be employed to overcome this latch-up. Mechanical jittering frequency shifting is currently the most mature and widely used frequency shifting scheme. The core of this technique utilizes the inverse electrostatic effect of piezoelectric ceramics to generate mechanical jitter in the jitter wheel, applying a periodically changing angular rate to the gyroscope.

[0003] For mechanical gyroscope frequency shifting technology, the design and manufacturing process of the mechanical gyroscope mechanism is one of the most confidential technologies and challenges. There are many types of gyroscope frequency shifting mechanisms, but single-axis gyroscope mechanisms are the most common in practical applications. To meet the increasingly miniaturized requirements of modern weapons, the miniaturization of laser gyroscopes has become an inevitable trend. For high-precision miniaturized laser gyroscopes with small locking areas and high yield rates, due to size limitations, an integrated gyroscope wheel solution is often adopted. This involves integrating the spoke-shaped gyroscope wheel with the sleeve into a single design and then bonding it to the gyroscope cavity with adhesive.

[0004] To meet the operating conditions and measurement accuracy requirements of high-precision miniature laser gyroscopes, the integrated jitter wheel must simultaneously possess excellent temperature stability, vibration and shock resistance, and time stability. This places stringent demands on materials, structural design, and specific manufacturing processes. Specifically, the integrated jitter wheel must simultaneously possess requirements such as large jitter angle amplitude, high jitter resonant frequency, small material expansion coefficient, high jitter stability, good overall structural rigidity, and good manufacturability. Summary of the Invention

[0005] The purpose of this invention is to provide a manufacturing process for a miniaturized integrated jitter wheel that meets the size requirements, geometric tolerance requirements, strength, and fatigue performance requirements of jitter wheel design, and can be used in high-precision laser gyroscopes.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] In a first aspect, a miniaturized integrated shaking wheel is provided, characterized in that it includes: a geometric central shaft and an outer edge integrated sleeve;

[0008] The two are connected by several drive spokes evenly distributed along the geometric central axis; the fixed spokes are evenly distributed along the geometric central axis, and there is a certain gap between the fixed spokes and the outer edge integral sleeve; the drive spokes and fixed spokes are distributed alternately.

[0009] In this design, each pair of adjacent drive spokes and the outer edge integrated sleeve divide the integrated vibrating wheel into several cavities, with the fixed spokes centrally distributed within the cavities.

[0010] Furthermore, the number of driving spokes is equal to the number of fixed spokes, with a minimum of three.

[0011] Furthermore, a cylindrical structure is fitted around the geometric center axis. Drive spokes and fixed spokes are evenly distributed alternately outward along the geometric center axis. The fixed spokes consist of a high section, a transition section from high to low, and an outer edge section.

[0012] The upper end face of the drive spoke, the upper end face of the cylindrical structure, and the upper end face of the high section are located in the same plane, forming two spoke-shaped planes perpendicular to the geometric central axis; the lower end face of the drive spoke, the lower end face of the cylindrical structure, and the lower end face of the high section are located in the same plane, forming another two spoke-shaped planes perpendicular to the geometric central axis.

[0013] Furthermore, the outer edge of the fixed spoke has a through hole along the geometric center axis, and both ends of the hole are chamfered. The spoke-shaped plane and the outer edge of the fixed spoke are transitioned by the transition slope of the transition section.

[0014] Furthermore, each of the drive spokes has an arc groove on one end face, and the center of the arc groove is concentric with the geometric center axis; at the outer edge of the drive spoke connected to the outer edge sleeve, there are two symmetrical annular grooves distributed axially along the geometric center axis.

[0015] Furthermore, the cylindrical structure has a through hole along the geometric center axis, and both ends of the through hole opening are chamfered. The end of the geometric center axis near the arc groove has a threaded hole along the geometric center axis.

[0016] Furthermore, the outer edge of the integral sleeve has annular grooves evenly distributed along the circumference on its outer side.

[0017] Furthermore, the outer integral sleeve has straight grooves symmetrically distributed along the geometric central axis on its upper and lower edges. These straight grooves are located on the extension line of the line connecting the geometric central axis and the center of the through hole, and their number is twice the number of through holes.

[0018] Secondly, a manufacturing process for a miniaturized integrated shaking wheel is provided, including:

[0019] Take a forged Ni32Co4Nb alloy bar with a diameter of 75mm and a length of 140mm. Note that the dimensional deviation between the diameter and length of the alloy bar should not exceed 1mm.

[0020] Microwave flaw detection is performed on the alloy bars to ensure that there are no pores, inclusions and metallurgical defects inside the alloy bars.

[0021] The alloy bar is subjected to solution treatment and aging heat treatment in an air atmosphere. The solution treatment temperature is controlled at 830-860℃ and the holding time is controlled at 10-30 min. After water cooling, it is aged at 310-330℃ and the holding time is controlled at 3-5 h. After that, it is cooled in the furnace or air cooled.

[0022] The alloy bar is machined to a diameter of 72mm using a CNC lathe, with the outer diameter roughness Ra≤6.3μm controlled. The alloy bar is then cut into single blanks with a length not exceeding 26mm and a deviation not exceeding 0.1mm. The perpendicularity of the end face to the outer diameter is guaranteed to be within 0.1mm.

[0023] The outer edge of the single blank is machined, the outer circle is machined to the middle dimension one, the dimensional tolerance is -0.1mm, and the perpendicularity of the two end faces with the geometric center axis as the reference is 0.02mm. The total length is machined to the dimension, the dimensional tolerance is ±0.03mm. The annular groove is machined to the middle dimension two, the length tolerance is -0.1mm, the width tolerance is ±0.1mm. The through hole is milled to the design dimension, the hole size tolerance is +0.1mm. The two end openings are chamfered at 0.5x45°. The threaded hole is milled to the dimension, ensuring the thread depth. The arc groove on the strip-shaped plane on the side where the threaded hole is located is machined to the design dimension to obtain the single blank.

[0024] The outer edge of the single blank is CNC milled, and through holes are drilled and bored to the design size and dimensional tolerance. The hole openings are chamfered to ensure that they are evenly distributed along the circumference. Several closed cavities and inclined surfaces corresponding to the two end faces are CNC milled to give the drive spokes a preliminary outline. The width of the inclined surface is reserved with a 0.2mm allowance on each side, with a tolerance of ±0.2mm. The width of the drive spoke is reserved with a 0.2mm allowance on each side, with a tolerance of -0.1mm. A 2mm diameter through hole is drilled at the clockwise junction of each drive spoke and the outer edge integrated sleeve for wire cutting. The position of the through hole is guaranteed to be less than or equal to 0.05mm with the geometric center axis and the fixed spoke outer edge end face as the reference. The burrs on the edges after CNC milling are removed.

[0025] The outer edge of the single blank is machined, the outer circle is machined to the middle dimension 3, the dimensional tolerance range is, and the annular groove is machined to dimension, the dimensional tolerance is -0.2;

[0026] The single blank is subjected to stress-relief aging in an air atmosphere, with the heating temperature controlled at 530-550℃ and the holding time controlled at 1-2h. After being cooled to 200℃ in the furnace, it is removed from the furnace.

[0027] The strip-shaped plane on the side where the threaded hole of the single blank is located is flat-ground to ensure that the flatness of the end face is less than or equal to 0.01.

[0028] The single blank is machined into fixed spokes and drive spokes to the design size by wire cutting. The wire cutting uses slow wire cutting, and the surface roughness Ra of the machined part is ≤0.8μm. All shapes are cut in three stages using coarse and fine wires to prevent the parts from deforming.

[0029] The single blank is sandblasted to clean the excess material on the wire-cut surface and ensure the gloss level; after cleaning the parts with pure water, they are dehydrated with alcohol and blown dry to prevent rust.

[0030] The single blank is subjected to electrical discharge machining to produce annular grooves distributed along the geometric center axis and straight grooves symmetrically distributed along the geometric center axis. The electrodes are made of pure copper, and burrs on each edge are removed after machining.

[0031] The outer edge of the single blank is machined to the required dimension, ensuring a roundness of 0.02 mm.

[0032] Beneficial effects:

[0033] The manufacturing process of this miniaturized integrated jitter wheel can stably produce an integrated jitter wheel with stable surface roughness, dimensional accuracy, strength, and fatigue performance. This solution improves the gyroscope's shock and vibration resistance while supporting its overall miniaturization. It provides a feasible technical solution for further improving the engineering processing and application level of vibrating laser gyroscopes, especially miniaturized vibrating laser gyroscopes. Attached Figure Description

[0034] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of the miniaturized integrated shaking wheel provided in an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the miniaturized integrated shaking wheel planar structure provided in an embodiment of the present invention;

[0037] Figure 3 The miniaturized integrated jitter wheel provided in the embodiments of the present invention Figure 2 A schematic diagram of the structure viewed from the AA direction.

[0038] Among them: 1. Geometric center axis, 2. Drive spoke, 3. Circular groove, 4. Inclined surface, 5. Through hole, 6. Fixed spoke, 7. Outer edge integrated sleeve, 8. Straight groove, 9. Threaded hole, 10. Annular groove, 11. Spread-shaped plane, 12. Annular groove, 13. Through hole. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0040] In the description of this invention, it should be understood that the terms "center", "axial", "vertical", "upper", "lower", "upper end", "bottom end", "inner", "outer", 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 the scope of protection of this invention.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figure 1-3 The present invention will be described in detail with reference to the embodiments.

[0042] like Figures 1 to 3 As shown, the present invention provides a miniaturized integrated vibrating wheel, the vibrating wheel comprising: a plurality of interleaved drive spokes 2 and fixed spokes 6 fixedly connected at one end to the same geometric central axis 1; and an outer edge integral sleeve 7 fixedly connected to the end of the drive spokes 2 away from the geometric central axis 1; wherein, every two adjacent drive spokes 2, together with the fixed spokes 6 fixedly disposed between every two adjacent drive spokes 2 and part of the outer edge sleeve 7, form a closed cavity.

[0043] As an optimization of any technical solution or any optimized technical solution provided above or below in this invention, the number of driving spokes 2 and fixed spokes 6 are equal, and there are at least 3 of them.

[0044] As an optimization of any technical solution or any optimized technical solution provided above or below in this invention, the inner sides of the geometric center axis 1, the fixed spokes 6, and the driving spokes 2 respectively have two strip-shaped planes 11 perpendicular to the geometric center axis 1 on the two end faces of the geometric center axis 1.

[0045] As an optimization of any technical solution or any optimized technical solution provided above or below in this invention, each of the fixed spokes 6 has a through hole on its outer edge end face along the geometric center axis 1, and both ends of the hole are chamfered. The spoke-shaped plane 11 and the outer edge end face of the fixed spokes 6 are respectively provided with inclined surfaces 4 as transition surfaces between the two.

[0046] As an optimization of any technical solution or any optimized technical solution provided above or below in this invention, each of the drive spokes 2 has an arc groove 3 on a spoke-shaped plane, and there are two symmetrical annular grooves 10 distributed along the geometric center axis 1 at the outer edge of the drive spoke 2 connected to the outer edge integral sleeve 7.

[0047] As an optimization of any technical solution or any optimized technical solution provided above or below in this invention, a through hole 5 is provided at the geometric center axis 1 along the axial direction of the geometric center axis 1, and both ends of the hole are chamfered. A threaded hole 9 along the axial direction of the geometric center axis 1 is provided at one end of the geometric center axis 1 near the arc groove 3.

[0048] As an optimization of any technical solution or any optimized technical solution provided above or below in this invention, the outer edge of the integral sleeve 7 has an annular groove 12 that is evenly distributed along the circumference on the outer side.

[0049] As an optimization of any technical solution or any optimized technical solution provided above or below in this invention, the outer edge of the integral sleeve 7 has straight grooves 8 symmetrically distributed along the geometric central axis 1 on its upper and lower edges. The straight grooves 8 are located on the extension line of the line connecting the geometric central axis 1 and the center of the through hole 5, and their number is twice the number of through holes 5.

[0050] This invention also provides a method for processing a miniaturized integrated vibrating wheel as described above, characterized by comprising: taking a forged Ni32Co4Nb alloy bar with a diameter of φ75mm and a length of 140mm, ensuring that the dimensional deviation between the diameter and length of the alloy bar does not exceed 1mm; performing microwave flaw detection on the alloy bar to ensure that there are no pores, inclusions, or metallurgical defects; performing solution treatment and aging heat treatment on the alloy bar in an air atmosphere, wherein the solution treatment temperature is controlled at 830-860℃ and the holding time is controlled at 10-30min, followed by water cooling and aging, wherein the aging temperature is controlled at 310-330℃ and the holding time is controlled at 3-5h, and then furnace cooling or air cooling is performed; and machining the alloy bar to φ7mm using a CNC lathe. 2mm, control the outer diameter roughness Ra≤6.3μm, cut the alloy bar into single blanks, the blank length does not exceed 26mm, the deviation does not exceed 0.1mm, and ensure that the perpendicularity of the end face to the outer diameter is within 0.1mm; turn the outer edge of the single blank, turn the outer diameter to the middle dimension one, the dimensional tolerance is -0.1mm, ensure the perpendicularity of the two end faces is 0.02mm (based on the geometric center axis), turn the total length to the dimension, the dimensional tolerance is ±0.03mm, turn the annular groove 12 to the middle dimension two, the length tolerance is -0.1mm, the width tolerance is ±0.1mm, mill the through hole 5 to the dimension, the hole size tolerance is +0.1mm, chamfer the two end hole openings 0.5x45°, mill the threaded hole 9 to the dimension, ensure the thread depth, turn The arc groove 3 on the strip-shaped plane 11 on the side where the threaded hole 9 is located is sized; the outer edge of the single blank is CNC milled, and the through hole 13 is drilled and bored to size with a dimensional tolerance of (+0.1, +0.05), and the hole opening is chamfered to ensure that it is evenly distributed along the circumference. Several closed cavities and inclined surfaces 4 corresponding to the two end faces are CNC milled, and the drive spoke 2 has a preliminary outline. The width dimension of the inclined surface 4 is reserved with a 0.2mm allowance on one side, with a tolerance of ±0.2mm. The width dimension of the drive spoke 2 is reserved with a 0.2mm allowance on one side, with a tolerance of -0.1mm. A φ2mm through hole is drilled at the clockwise junction of each drive spoke 2 and the outer edge integral sleeve 7 for wire cutting. The position accuracy of the through hole is guaranteed to be 0.05mm (based on the geometric center axis 1 and the fixed... Using the outer edge of the fixed spoke 6 as a reference, remove all milled burrs from the edges; turn the outer circle of the single blank to the middle dimension 3, with dimensional tolerances of -0.02 and -0.06; turn the annular groove 12 to the dimension, with a dimensional tolerance of -0.2; perform stress-relieving aging on the single blank in an air atmosphere, with the heating temperature controlled at 530-550℃ and the holding time controlled at 1-2 hours, followed by furnace cooling to 200℃ before removal from the furnace; perform flat grinding on the side of the single blank where the threaded hole 9 is located to ensure the flatness of the end face is 0.01; process the single blank to the dimensions of the fixed spoke 6 and the drive spoke 2 by wire EDM, using slow wire EDM, with a surface roughness Ra≤0.8μm, all shapes are cut in three stages using coarse and fine wires to prevent part deformation. The single-piece blank is sandblasted to remove excess material from the wire-cut surface and ensure a smooth finish. After cleaning with pure water, the parts are dehydrated with alcohol and dried to prevent corrosion. The single-piece blank is then subjected to electrical discharge machining (EDM) to machine annular grooves 10 distributed axially along the geometric center axis 1 and straight grooves 8 symmetrically distributed along the geometric center axis 1. The electrodes are made of pure copper, and burrs on all edges are removed after machining. The outer edge of the single-piece blank is turned to the required dimension, ensuring a roundness of 0.02mm.

[0051] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0052] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A miniaturized integrated vibrating wheel, characterized in that, include: Geometric central axis (1) and outer edge integral sleeve (7); The two are connected by several drive spokes (2) evenly distributed along the geometric central axis (1); fixed spokes (6) are evenly distributed along the geometric central axis (1), and there is a certain gap between the fixed spokes (6) and the outer edge integrated sleeve (7); drive spokes (2) and fixed spokes (6) are distributed alternately; Among them, each pair of adjacent drive spokes (2) and the outer edge integrated sleeve (7) divide the integrated shaking wheel into several cavities, and the fixed spokes (6) are centrally distributed in the cavity.

2. The miniaturized integrated vibrating wheel according to claim 1, characterized in that, The number of driving spokes (2) is equal to that of fixed spokes (6), and there are at least 3 of them.

3. The miniaturized integrated vibrating wheel according to claim 2, characterized in that, The geometric center axis (1) is surrounded by a cylindrical structure. The cylindrical structure is evenly distributed with driving spokes (2) and fixed spokes (6) alternately outward along the geometric center axis (1). The fixed spokes (6) consist of a high section, a transition section from high to low, and an outer edge section. The upper end face of the drive spoke (2), the upper end face of the cylindrical structure and the upper end face of the high section are located in the same plane, forming two spoke-shaped planes (11) perpendicular to the geometric central axis (1); the lower end face of the drive spoke (2), the lower end face of the cylindrical structure and the lower end face of the high section are located in the same plane, forming another two spoke-shaped planes (11) perpendicular to the geometric central axis (1).

4. The miniaturized integrated vibrating wheel according to claim 3, characterized in that, The outer edge of the fixed spoke (6) has a through hole (5) along the geometric center axis (1), and both ends of the hole are chamfered. The strip-shaped plane (11) and the outer edge of the fixed spoke (6) are connected by a transition slope of the transition section.

5. The miniaturized integrated vibrating wheel according to claim 4, characterized in that, Each of the drive spokes (2) has an arc groove (3) on one end face, and the center of the arc groove is concentric with the geometric center axis (1); there are two annular grooves (10) symmetrically distributed along the geometric center axis (1) at the outer edge of the drive spoke (2) connected to the outer edge integral sleeve (7).

6. The miniaturized integrated vibrating wheel according to claim 5, characterized in that, The cylindrical structure has a through hole (13) along the axial direction of the geometric center axis (1). Both ends of the through hole are chamfered. The end of the geometric center axis (1) near the arc groove (3) has a threaded hole (9) along the axial direction of the geometric center axis (1).

7. The miniaturized integrated vibrating wheel according to claim 6, characterized in that, The outer edge of the integral sleeve (7) has an annular groove (12) evenly distributed along the circumference on its outer side.

8. The miniaturized integrated vibrating wheel according to claim 7, characterized in that, The outer edge of the integral sleeve (7) has straight grooves (8) symmetrically distributed along the geometric center axis (1) on its upper and lower edges. The straight grooves (8) are located on the extension line of the line connecting the geometric center axis (1) and the center of the through hole (5), and their number is twice the number of through holes (5).

9. A manufacturing process for a miniaturized integrated vibrating wheel as described in claim 8, characterized in that, include: Take a forged Ni32Co4Nb alloy bar with a diameter of 75mm and a length of 140mm. Note that the dimensional deviation between the diameter and length of the alloy bar should not exceed 1mm. Microwave flaw detection is performed on alloy bars to ensure that there are no pores, inclusions and metallurgical defects in the alloy bars. The alloy bar is subjected to solution treatment and aging heat treatment in an air atmosphere. The solution treatment temperature is controlled at 830-860℃ and the holding time is controlled at 10-30 min. After water cooling, it is aged at 310-330℃ and the holding time is controlled at 3-5 h. After that, it is cooled in the furnace or air cooled. The alloy bar is machined to a diameter of 72mm using a CNC lathe, with the outer diameter roughness Ra≤6.3μm controlled. The alloy bar is then cut into single blanks with a length not exceeding 26mm and a deviation not exceeding 0.1mm. The perpendicularity of the end face to the outer diameter is guaranteed to be within 0.1mm. The outer edge of the single blank is machined, the outer circle is machined to the middle dimension one, the dimensional tolerance is -0.1mm, the perpendicularity of the two end faces with the geometric center axis (1) as the reference is 0.02mm, the total length is machined to the dimension, the dimensional tolerance is ±0.03mm, the annular groove (12) is machined to the middle dimension two, the length tolerance is -0.1mm, the width tolerance is ±0.1mm, the through hole (13) is milled to the design dimension, the hole size tolerance is +0.1mm, the two end hole openings are chamfered 0.5x45°, the threaded hole (9) is milled to the dimension, the thread depth is guaranteed, and the arc groove (3) on the strip-shaped plane (11) on the side where the threaded hole (9) is located is machined to the design dimension to obtain the single blank; The outer edge of the single blank is CNC milled, and through holes (5) are drilled and bored to the design size with dimensional tolerances of (+0.1, +0.05). The opening is chamfered to ensure that it is evenly distributed along the circumference. Several closed cavities and inclined surfaces (4) corresponding to the two end faces are CNC milled. The driving spokes (2) have a preliminary outline. The width of the inclined surface (4) is reserved with a 0.2mm allowance on one side with a tolerance of ±0.2mm. The width of the driving spokes (2) is reserved with a 0.2mm allowance on one side with a tolerance of -0.1mm. A 2mm diameter through hole is drilled at the clockwise junction of each driving spoke (2) and the outer edge integrated sleeve (7) for wire cutting. The position of the through hole (5) with the geometric center axis (1) and the outer edge end face of the fixed spoke (6) as reference is less than or equal to 0.05mm. The burrs on the edges after CNC milling are removed. The outer edge of the single blank is machined to the middle dimension 3, with a dimensional tolerance range of (-0.02, -0.06), and the annular groove (12) is machined to the dimension, with a dimensional tolerance of -0.2; The single blank is subjected to stress-relief aging in an air atmosphere, with the heating temperature controlled at 530-550℃ and the holding time controlled at 1-2h. After being cooled to 200℃ in the furnace, it is removed from the furnace. The strip-shaped plane (11) on the side where the threaded hole (9) of the single blank is located is flat-ground to ensure that the flatness of the end face is less than or equal to 0.01; The single blank is processed by wire cutting to produce fixed spokes (6) and drive spokes (2) to the design size. The wire cutting is performed by slow wire cutting, and the surface roughness Ra of the processed part is ≤0.8μm. All shapes are cut in three stages using thick and thin wires to prevent the parts from deforming. The single blank is sandblasted to clean the excess material on the wire-cut surface and ensure the gloss level; after cleaning the parts with pure water, they are dehydrated with alcohol and blown dry to prevent rust. The single blank is subjected to electrical discharge machining to produce annular grooves (10) distributed along the geometric center axis (1) and straight grooves (8) symmetrically distributed along the geometric center axis (1). The electrodes are made of pure copper and the burrs on each edge are removed after machining. The outer edge of the single blank is machined to the required dimension, ensuring a roundness of 0.02mm.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method as described in claim 9.

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