Machining forming process of precise thin-wall gear

Abstract

The invention relates to a machining and forming process of a precise thin-wall gear. The machining and forming process comprises the following steps of S1, cutting machining; and S2, correcting. On one hand, the center of the gear, the spoke with the minimum deviation and the tooth top are positioned, the coordinate system is established, then the spokes are subjected to finish machining on the basis of the coordinate system, the deviation of the spokes in the direction of the corresponding tooth top is effectively reduced, and the yield of products is increased; on the other hand, the spoke and the tooth tip are corrected before the gear is finished, operation is easy and convenient, time and labor are saved, and production efficiency can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of precision machining, and in particular relates to a machining and forming process for a precision thin-walled gear. Background Art

[0002] In the processing of precision thin-walled gears, usually according to the process flow, multiple tooth tips distributed in a ring shape at intervals are processed on the edge of the blank, and multiple spokes distributed at intervals around the center line of the blank are processed in the middle of the blank to obtain the corresponding gear products.

[0003] However, since the process has precision requirements on the direction of the closest spoke and tooth tip on the gear, in the actual production process, when the existing processing technology is used to process the gear, the direction of the tooth tip and the spoke is randomly processed, and the probability of a deviation between the center line of the corresponding tooth tip and the center line of the spoke is high, resulting in the product failing to meet the precision requirements and a low product yield rate. In addition, although the spokes can be twisted by torque to implement shape correction after the product is processed, this method requires too much torque, the operation is time-consuming and labor-intensive, and the scrap rate is very high. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a new processing technology for precision thin-walled gears.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A processing and forming process for a precision thin-walled gear, the forming process comprising the following steps:

[0007] S1. Cutting

[0008] The blank is clamped on a special fixture, and then, according to the requirements of the drawing, an annular thin-walled structure is formed in the circumferential direction of the blank to the designed size; a plurality of spoke grooves distributed in an annular manner are formed at the bottom of the blank with a processing allowance, wherein a spoke is formed between each two adjacent spoke grooves; a plurality of tooth tips distributed in an annular manner are formed at the top edge of the annular thin-walled structure to the designed size, and a semi-finished product is obtained after the above processing is completed;

[0009] S2. Calibration

[0010] a) Place the semi-finished product on a horizontal reference plane from the corresponding end faces and locate the center of the semi-finished product;

[0011] b) Inspect and determine the spoke and tooth tip with the smallest centerline angle of the semi-finished product, where this tooth tip is the zero-point tooth tip;

[0012] c) Press and position the zero-point tooth tip in the radial direction of the semi-finished product, position the spoke corresponding to the zero-point tooth tip in the circumferential direction of the semi-finished product, and establish a coordinate system based on the horizontal reference plane, the center of the semi-finished product and the zero-point tooth tip. Then, based on the coordinate system, process each spoke one by one so that the center line of each spoke coincides with the center line of the corresponding tooth tip, complete the correction of the spoke and the tooth tip, and obtain a thin-walled gear product.

[0013] Preferably, in S1, according to the requirements of the drawing, the center inner hole of the bottom center of the blank is processed to the design size, and when processing the tooth tip, the center inner hole and the bottom surface of the blank are used as the reference to cut the teeth one by one. This facilitates the center positioning of the blank when processing the tooth tip and improves the position accuracy of the tooth cutting.

[0014] Preferably, the clamping device used for processing the tooth tip includes a clamping seat with a top surface forming a horizontal reference plane, a positioning mandrel arranged on the top surface of the clamping seat and matching the central inner hole, a support sleeve arranged on the top surface of the clamping seat and against the outer wall of the annular thin-walled structure, and a pressing plate for pressing the blank against the clamping seat. Here, the clamping seat and the pressing plate are used to clamp and position the blank in the up and down directions, and the positioning mandrel and the supporting sleeve are used to form radial clamping, positioning and support, thereby meeting the gear cutting accuracy while greatly reducing the probability of deformation of the annular thin-walled structure.

[0015] Preferably, in step S2, the correction device used includes:

[0016] A base is formed with a reference surface, and the semi-finished product is placed on the reference surface from the corresponding end surface;

[0017] A center positioning component, which is arranged on the reference surface and used to locate the center of the semi-finished product;

[0018] A tooth tip positioning component, which is arranged on the reference plane and is formed with a meshing portion matching the zero-point tooth tip;

[0019] A spoke positioning component is arranged on the reference plane and is located between the center positioning component and the tooth tip positioning component, and a positioning channel for a single spoke is formed on the spoke positioning component. When the semi-finished product is placed on the reference plane and positioned at the center, the zero-point tooth tip is engaged with the meshing portion, and the corresponding spoke passes through the positioning channel;

[0020] The processing component is used for processing in sequence based on the zero-point tooth tip and driving the center line of each spoke to coincide with the center line of the corresponding tooth tip.

[0021] Preferably, the center positioning component includes a center module plugged into the middle of the semi-finished product, a connector for fixing the center module to the base, wherein there are multiple connectors and they are spaced and arranged side by side along the radial direction of the semi-finished product; a center hole is formed on the base, and the center positioning component also includes a center shaft plugged into the center hole, and the center module is sleeved on the center shaft. This facilitates the rapid installation and positioning of the center module.

[0022] Preferably, the tooth tip positioning component comprises a positioning column extending radially along the semi-finished product, and an adjusting member for driving the positioning column to adjust toward or away from the tooth tip, wherein one end of the positioning column forms an engaging portion.

[0023] Furthermore, a groove is formed on the base, and the tooth tip positioning component also includes an insert that is plugged into the groove, wherein a guide channel extending radially along the semi-finished product is formed on the insert, and the positioning column is inserted in the guide channel and adjusted along the guide channel toward or away from the zero-point tooth tip. Here, the guide channel is used to guide the adjustment of the positioning column, ensuring accurate adjustment of the positioning column, and at the same time, ensuring that the positioning column is closely meshed with the tooth tip, avoiding deformation or position deviation during the correction process, and improving the correction accuracy.

[0024] Preferably, the spoke positioning component is detachably connected to the base; the base is also formed with plug-in slots spaced side by side along the corresponding spoke width direction, and the spoke positioning component includes a U-shaped plug-in module, wherein the two ends of the U-shaped plug-in module are correspondingly inserted into the two plug-in slots, and a positioning channel is formed between the inner wall of the U-shaped plug-in module and the reference surface. The processing and correction of the spokes located in the positioning channel are convenient, and the disassembly and assembly operations are simple and convenient.

[0025] Preferably, a pressing block for pressing the semi-finished product onto the reference surface is also provided on the base.

[0026] Specifically, the pressing block is pressed on the edge of the semi-finished product, and there are a plurality of pressing blocks which are distributed in an annular manner around the center line of the semi-finished product, thereby ensuring that the gear remains stable during processing and avoiding position deviation.

[0027] Due to the implementation of the above technical solution, the present invention has the following advantages compared with the prior art:

[0028] When the existing processing technology is used to process gears, the directions of the tooth tips and spokes are randomly processed, and there is a high probability that the center line of the corresponding tooth tip and the center line of the spoke will deviate, resulting in the product failing to meet the precision requirements and a low product yield rate. In addition, although the spokes can be twisted by torque to implement the shape correction after the product is processed, the torque required for this method is too large, the operation is time-consuming and labor-intensive, and the resulting scrap rate is very high. The present application makes an overall design of the processing and forming process for precision thin-walled gears, ingeniously solving the deficiencies and defects of the prior art. After adopting the processing and forming process, first, the blank is clamped on a special fixture, and then, according to the requirements of the drawing, an annular thin-walled structure is formed in the circumferential direction of the blank to the designed size; a plurality of spoke grooves distributed in annular intervals are formed at the bottom of the blank with a processing allowance left. , wherein a spoke is formed between each two adjacent spoke grooves; a plurality of tooth tips distributed in an annular manner are processed and formed to a designed size on the top edge of the annular thin-walled structure, and a semi-finished product is obtained after the above processing is completed; then, the semi-finished product is placed on a horizontal reference plane from the corresponding end face, and the center of the semi-finished product is positioned; the spoke and tooth tip with the smallest centerline angle of the semi-finished product are inspected and determined, wherein the tooth tip is the zero-point tooth tip; the zero-point tooth tip is pressed and positioned in the radial direction of the semi-finished product, the spoke corresponding to the zero-point tooth tip is positioned in the circumferential direction of the semi-finished product, and a coordinate system is established with the horizontal reference plane, the center of the semi-finished product and the zero-point tooth tip as references, and then each spoke is processed one by one based on the coordinate system so that the center line of each spoke coincides with the center line of the corresponding tooth tip, the correction of the spoke and the tooth tip is completed, and a thin-walled gear product is obtained. Therefore, compared with the prior art, the present invention, on the one hand, locates the gear center, the spoke with the smallest deviation and the tooth tip and establishes a coordinate system, and then fine-processes each spoke based on the coordinate system, thereby effectively reducing the deviation between each spoke and the corresponding tooth tip direction and improving the product yield rate; on the other hand, by correcting the spoke and the tooth tip before the gear is finished, the operation is simple and convenient, saving time and effort, and helping to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic top view of the clamping device of the present invention;

[0030] Figure 2 for Figure 1 Schematic diagram of the cross section along the Ⅰ-Ⅰ axis;

[0031] Figure 3 is a schematic top view of the correction device of the present invention;

[0032] Figure 4 It is a front view schematic diagram of the correction device of the present invention;

[0033] Figure 5 for Figure 3 A top view of the middle base;

[0034] Figure 6 for Figure 3 A schematic diagram of the main view of the middle base;

[0035] Figure 7 for Figure 3 A magnified schematic diagram of the local structure;

[0036] Figure 8 for Figure 3 An enlarged left view of the middle U-shaped plug-in module;

[0037] Wherein: A, clamping device; A0, clamping seat; A1, positioning mandrel; A2, support sleeve; A3, pressing plate;

[0038] B, correction device; 1, base; 10, pressure block; m, reference surface; k0, center hole; c0, embedded groove; c 1, plug-in groove; 2, center positioning component; 20, center module; 21, connecting piece; 22, center axis; 3, tooth tip positioning component; 30, positioning column; b, meshing part; 31, adjusting piece; 32, insert; 320, guide channel; 4, spoke positioning component; 40, U-shaped plug-in module; t, positioning channel;

[0039] C, gear; C0, annular thin-walled structure; C1, tooth tip; C2, spoke; C3, center inner hole. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0045] like Figures 1 to 8 As shown, the processing and forming process of the precision thin-walled gear involved in this embodiment uses processing equipment including a clamping device A and a correction device B. The precision thin-walled gear C of this embodiment includes an annular thin-walled structure C0, a plurality of tooth tips C1 and a plurality of spokes C2 arranged on the annular thin-walled structure C0 and spaced around its own center line direction, and a central inner hole C3 is formed at the bottom center of the gear C.

[0046] Specifically, the clamping device A includes a clamping seat A0 whose top surface forms a horizontal reference surface, a positioning mandrel A1 arranged on the top surface of the clamping seat A0 and matching the central inner hole C3, a support sleeve A2 arranged on the top surface of the clamping seat A0 and against the outer wall of the annular thin-walled structure C0, and a pressing plate A3 for pressing the blank against the clamping seat A0. Here, the clamping seat and the pressing plate are used to clamp and position the blank in the up and down directions, and the positioning mandrel and the supporting sleeve are used to form radial clamping, positioning and support, thereby meeting the gear cutting accuracy while greatly reducing the probability of deformation of the annular thin-walled structure.

[0047] In this example, the correction device B includes a base 1, a center positioning component 2, a tooth tip positioning component 3, and a spoke positioning component 4.

[0048] Specifically, the base 1 is arranged horizontally, and a reference surface m is formed on the top surface of the base 1, and the semi-finished gear C is placed on the reference surface m from one side.

[0049] For the convenience of implementation, the base 1 is also provided with an L-shaped pressing block 10 for pressing the gear C onto the reference surface m, wherein the pressing block 10 is pressed onto the edge of the gear C and fixedly connected to the base 1 by bolts, and there are a plurality of pressing blocks 10 which are distributed in an annular pattern around the center line of the gear C. Here, it is ensured that the gear remains stable during processing to avoid positional deviation.

[0050] In this example, the center positioning component 2 is arranged on the reference plane m and is used to position the center of the gear C.

[0051] In some specific embodiments, the center positioning component 2 includes a central module 20 that is plugged into the middle of the gear C and a connecting member 21 for fixedly connecting the central module 20 to the base 1, wherein there are multiple connecting members 21 that are spaced side by side along the radial direction of the gear C.

[0052] Furthermore, a center hole k0 is formed on the base 1, and the center positioning component 2 further includes a center shaft 22 inserted into the center hole k0, and the center module 20 is sleeved on the center shaft 22. Here, the center module is convenient for rapid installation and positioning.

[0053] In this example, the tooth tip positioning component 3 is arranged on the reference plane m and is located outside the gear C, wherein a meshing portion b matching the single tooth tip C1 is formed on the tooth tip positioning component 3 .

[0054] In some specific embodiments, the tooth tip positioning component 3 includes a positioning column 30 extending radially along the gear C, and an adjusting member 31 for driving the positioning column 30 to adjust toward or away from the tooth tip C1, wherein one end of the positioning column 30 forms a meshing portion b; the adjusting member 31 is a dividing pin or other adjusting parts.

[0055] Specifically, a groove c0 is formed on the base 1, and the tooth tip positioning component 3 also includes an insert 32 plugged into the groove c0, wherein a guide channel 320 extending radially along the gear C is formed on the insert 32, and the positioning column 30 is inserted in the guide channel 320 and adjusted toward or away from the tooth tip C1 along the guide channel 320. Here, the positioning column is guided by the guide channel to ensure accurate adjustment of the positioning column, and at the same time, the positioning column is ensured to be closely meshed with the tooth tip, so as to avoid deformation or position deviation during the correction process and improve the correction accuracy.

[0056] In this example, the spoke positioning component 4 is arranged on the reference plane m and is located between the center positioning component 2 and the tooth tip positioning component 3, and a positioning channel t for a single spoke is formed on the spoke positioning component 4, wherein when any spoke C2 passes through the positioning channel t, the corresponding tooth tip C1 synchronously meshes with the meshing portion b and forms a zero point.

[0057] For further convenience of implementation, when the gear C is placed on the reference plane m and positioned at the center, the spoke C2 and the tooth tip C1 with the smallest centerline angle on the gear C respectively pass through the positioning channel t and are meshed with the meshing portion b. Here, the spoke and the tooth tip with the smallest centerline angle are positioned and used as the processing reference of each spoke, which can effectively reduce the workload while achieving correction.

[0058] In some specific embodiments, the spoke positioning component 4 is detachably connected to the base 1 .

[0059] At the same time, the base 1 is also formed with plug-in slots c1 arranged side by side and spaced apart along the width direction of the corresponding spoke C2, and the spoke positioning component 4 includes a U-shaped plug-in module 40, wherein the two ends of the U-shaped plug-in module 40 are correspondingly inserted into the two plug-in slots c1, and a positioning channel t is formed between the inner wall of the U-shaped plug-in module 40 and the reference surface. Here, the disassembly and assembly operation is simple and convenient.

[0060] In addition, the processing component is used to process the zero-point tooth tip in sequence and drive the center line of each spoke C2 to coincide with the center line of the corresponding tooth tip C1. The processing component of this embodiment can be any conventional processing center, which is conventional technology and can be implemented without further description.

[0061] Therefore, the processing technology of the precision thin-walled gear of this embodiment includes the following steps:

[0062] S1. Cutting

[0063] The blank is clamped on a special fixture, and then according to the requirements of the drawing, an annular thin-walled structure is formed in the circumferential direction of the blank to the designed size; a plurality of spoke grooves distributed in an annular manner are formed at the bottom of the blank with a processing allowance, wherein a spoke is formed between each two adjacent spoke grooves; a central inner hole is processed at the bottom center of the blank to the designed size; based on the central inner hole and the bottom surface of the blank, a plurality of tooth tips distributed in an annular manner are processed at the top edge of the annular thin-walled structure to the designed size, and a semi-finished product is obtained after the above processing is completed;

[0064] S2. Calibration

[0065] a) Place the semi-finished product on a horizontal reference plane from the corresponding end faces and locate the center of the semi-finished product;

[0066] b) Inspect and determine the spoke and tooth tip with the smallest centerline angle of the semi-finished product, where this tooth tip is the zero-point tooth tip;

[0067] c) Press and position the zero-point tooth tip in the radial direction of the semi-finished product, position the spoke corresponding to the zero-point tooth tip in the circumferential direction of the semi-finished product, and establish a coordinate system based on the horizontal reference plane, the center of the semi-finished product and the zero-point tooth tip. Then, based on the coordinate system, process each spoke one by one so that the center line of each spoke coincides with the center line of the corresponding tooth tip, complete the correction of the spoke and the tooth tip, and obtain a thin-walled gear product.

[0068] In summary, after adopting this processing and forming process, first, the blank is clamped on a special fixture, and then according to the requirements of the drawing, an annular thin-walled structure is formed in the circumferential direction of the blank to the designed size; a plurality of spoke grooves distributed in an annular manner are formed at the bottom of the blank with a processing allowance, wherein a spoke is formed between each adjacent two spoke grooves; a plurality of tooth tips distributed in an annular manner are formed at the top edge of the annular thin-walled structure to the designed size, and a semi-finished product is obtained after completing the above processing; then, the semi-finished product is placed on a horizontal reference plane from the corresponding end face. , and locate the center of the semi-finished product; inspect and determine the spoke and tooth tip with the smallest centerline angle of the semi-finished product, where this tooth tip is the zero-point tooth tip; press and locate the zero-point tooth tip in the radial direction of the semi-finished product, locate the spoke corresponding to the zero-point tooth tip in the circumferential direction of the semi-finished product, and establish a coordinate system based on the horizontal reference plane, the center of the semi-finished product and the zero-point tooth tip, and then process each spoke one by one based on the coordinate system so that the center line of each spoke coincides with the center line of the corresponding tooth tip, complete the correction of the spoke and the tooth tip and obtain a thin-walled gear product. Therefore, compared with the prior art, the present invention, on the one hand, locates the gear center, the spoke with the smallest deviation and the tooth tip and establishes a coordinate system, and then fine-processes each spoke based on the coordinate system, thereby effectively reducing the deviation between each spoke and the corresponding tooth tip and improving the product yield rate; on the other hand, by correcting the spokes and tooth tips before the gear is finished, the operation is simple and convenient, saving time and effort, and is conducive to improving production efficiency; thirdly, the spokes and tooth tips with the smallest center angle are used for positioning and used as the processing reference for each spoke, which can effectively reduce the workload while achieving correction; fourthly, the guide channel is used to guide the adjustment of the positioning column to ensure precise adjustment of the positioning column. At the same time, the positioning column is ensured to be tightly meshed with the tooth tip to avoid deformation or position displacement during the correction process, thereby improving the correction accuracy.

[0069] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A processing technology for a precision thin-walled gear, characterized in that: The molding process comprises the following steps: S1. Cutting The blank is clamped on a special fixture, and then, according to the requirements of the drawing, an annular thin-walled structure is formed in the circumferential direction of the blank to the designed size; a plurality of spoke grooves distributed in an annular manner are formed at the bottom of the blank with a processing allowance, wherein a spoke is formed between each two adjacent spoke grooves; a plurality of tooth tips distributed in an annular manner are formed at the top edge of the annular thin-walled structure to the designed size, and a semi-finished product is obtained after the above processing is completed; S2. Calibration a) placing the semi-finished product on a horizontal reference plane from the corresponding end faces, and locating the center of the semi-finished product; b) Inspect and determine the spoke and tooth tip with the smallest centerline angle of the semi-finished product, where this tooth tip is the zero-point tooth tip; c) Press and position the zero-point tooth tip in the radial direction of the semi-finished product, position the spoke corresponding to the zero-point tooth tip in the circumferential direction of the semi-finished product, and establish a coordinate system based on the horizontal reference plane, the center of the semi-finished product and the zero-point tooth tip, and then process each spoke one by one based on the coordinate system so that the center line of each spoke coincides with the center line of the corresponding tooth tip, thereby completing the correction of the spoke and the tooth tip and obtaining a thin-walled gear product.

2. The processing and forming process of the precision thin-walled gear according to claim 1 is characterized in that: In S1, according to the drawing requirements, the center inner hole is machined at the bottom center of the blank to the designed size, and when machining the tooth tip, the teeth are cut one by one based on the center inner hole and bottom surface of the blank.

3. The processing and forming process of the precision thin-walled gear according to claim 2 is characterized in that: The clamping device used for processing the tooth tip includes a clamping seat with a top surface forming a horizontal reference plane, a positioning core shaft arranged on the top surface of the clamping seat and matching the central inner hole, a support sleeve arranged on the top surface of the clamping seat and against the outer wall of the annular thin-walled structure, and a pressing plate used to press the blank onto the clamping seat.

4. The processing and forming process of the precision thin-walled gear according to claim 1 is characterized in that: In step S2, the correction device used includes: A base having a reference surface formed thereon, and the semi-finished product is placed on the reference surface from the corresponding end surface; A center positioning component, which is arranged on the reference surface and used to locate the center of the semi-finished product; A tooth tip positioning component, which is arranged on the reference plane and is formed with an engaging portion matching the zero-point tooth tip; a spoke positioning component, which is arranged on the reference plane and located between the center positioning component and the tooth tip positioning component, and a positioning channel for a single spoke is formed on the spoke positioning component, when the semi-finished product is placed on the reference plane and positioned at the center, the zero-point tooth tip is meshed with the meshing portion, and the corresponding spoke passes through the positioning channel; A processing component is used to process in sequence based on the zero-point tooth tip and drive the center line of each spoke to coincide with the center line of the corresponding tooth tip.

5. The processing and forming process of the precision thin-walled gear according to claim 4 is characterized in that: The center positioning component includes a center module that is plugged into the middle of the semi-finished product and a connecting piece for fixedly connecting the center module to the base, wherein there are multiple connecting pieces that are distributed side by side and spaced apart along the radial direction of the semi-finished product; a center hole is formed on the base, and the center positioning component also includes a center axis inserted in the center hole, and the center module is sleeved on the center axis.

6. The processing and forming process of the precision thin-walled gear according to claim 4 is characterized in that: The tooth tip positioning component includes a positioning column extending radially along the semi-finished product and an adjusting member for driving the positioning column to adjust toward or away from the tooth tip, wherein one end of the positioning column forms the meshing portion.

7. The processing and forming process of the precision thin-walled gear according to claim 6 is characterized in that: The base is provided with an embedding groove, and the tooth tip positioning component further comprises an insert which is plugged into and matched with the embedding groove, wherein the insert is provided with a guide channel which extends radially along the semi-finished product, and the positioning column is inserted in the guide channel and adjusted along the guide channel toward or away from the zero-point tooth tip.

8. The processing and forming process of the precision thin-walled gear according to claim 4 is characterized in that: The spoke positioning component is detachably connected to the base; the base is also formed with plug-in grooves that are spaced side by side along the corresponding spoke width direction, and the spoke positioning component includes a U-shaped plug-in module, wherein the two ends of the U-shaped plug-in module are correspondingly inserted into the two plug-in grooves, and the positioning channel is formed between the inner wall of the U-shaped plug-in module and the reference plane.

9. The processing and forming process of the precision thin-walled gear according to claim 4, characterized in that: The base is also provided with a pressing block for pressing the semi-finished product onto the reference surface.

10. The processing and forming process of the precision thin-walled gear according to claim 9, characterized in that: The pressing block is pressed on the edge of the semi-finished product, and there are a plurality of pressing blocks which are distributed in an annular manner around the center line of the semi-finished product.

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